JPH0717552A - Cap for squeezable bottle - Google Patents

Abstract

PURPOSE:To obtain a bottle from which its liquid contents can easily be squeezed out and which can be used with a sense of safety by a method wherein, by a mere pressing action, the bottle is opened and closed and its liquid contents are discharged and an easy judgement is made as to whether or not the bottle is opened by tampering. CONSTITUTION:The bottle is opened and closed substantially by a reversible valve body 7, a sealing stopper 17 which cannot be uncorked unless an outer ring 22 is removed is fitted firmly and closely into a discharge cylinder 4 of a main cap 1 forming a discharge opening, an exact judgement is made as to whether or not the bottle is opened through tampering by taking a look at the condition of the outer ring 22, the liquid contents are squeezed out by a mere pressing action against the body part of the bottle and the bottle is closed by a mere releasing of the pressing action.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cap body for a squeeze bottle having a reversible valve function for opening by a positive pressure and a negative pressure generated in a bottle and a function for preventing unauthorized opening.

[0002]

2. Description of the Related Art Conventionally, a pouring cap mounted on a squeeze bottle made of synthetic resin containing shampoo, cosmetic liquid, etc. is provided on the pouring cap by loosening the degree of attachment of the cap to the bottle. In addition, the opening and closing operation is performed by rotating and erecting a dedicated cylinder piece for pouring, and further opening and closing a hinged opening and closing cap portion.

In most cases, the bottle body to which this type of spout cap is assembled has no means for preventing unauthorized opening, but a part of the bottle for preventing unauthorized opening also serves as seal packing. There is a packing plate provided so that the packing plate can be removed when used after purchase.

[0004]

However, in the above-mentioned conventional pouring cap, prior to pressing the body of the bottle to pour out the content liquid, a dedicated opening operation, that is, the cap for the bottle is closed. Since it is necessary to loosen the assembly, rotationally erect the pipe piece for pouring, and further open the opening / closing cap to pivotally open,
There was a problem that the whole operation for pouring the content liquid was troublesome.

When a packing plate is provided to prevent unauthorized opening, it is necessary to remove the packing plate with the spout cap removed from the bottle body.
The removal work is troublesome, and the packing plate is assembled in a state that it is hidden inside the spout cap. Therefore, it is possible to judge whether the bottle as a product is illegally opened or not based on the appearance alone. There was a problem that I could not do it.

Therefore, the present invention was devised to solve the above-mentioned problems in the prior art. The opening and closing of the bottle and the pouring of the content liquid are achieved only by the pressing operation of the bottle body, The technical issue is to make it possible to easily and surely determine the presence or absence of unauthorized opening based on the external appearance, so that it is possible to easily pour out the content liquid at the time of use, and at the same time feel assured that the bottle is a product. Intended to be available for purchase.

[0007]

[Means for Solving the Problems] The means of the present invention for solving the above-mentioned technical problem is to assemble a spouting cylinder, which is attached to a bottle mouth tube of a squeeze bottle, and which vertically erects a spouting tube at the center of the top wall. It has a main cap in the shape of a cylinder with a top, and a reversible valve body that is attached to the upper end surface of the bottle mouth cylinder in a form that closes this bottle mouth cylinder and opens by positive pressure or negative pressure inside the bottle body. Having, a plug body that tightly fits tightly into the pouring tube of the main cap, in a form surrounding the plug body, a sealing plug integrally provided in series with a short piece-shaped outer ring through a separation piece that is easily broken. To have.

A ring-shaped finger hook ring is provided on the main body plate of the stopper main body which is in contact with the upper end surface of the spout cylinder of the main cap, in the form of surrounding the main body plate. It is convenient to form a sealing plug by integrally connecting the outer ring with the finger ring and surrounding the finger ring with the outer ring.

It is preferable that the outer ring of the sealing plug has a height such that the lower end edge is substantially in contact with the upper surface of the top wall of the main cap, and a cutout is provided in a part of the short tubular body over the entire height range. It is good to

[0010]

[Function] Until the consumer purchases the bottle as a product,
Since the sealing plug is firmly and tightly fitted and assembled to the spout cylinder of the main cap, this sealing plug acts to push the liquid content due to the pressing force applied to the body of the bottle during handling such as transportation and storage. Is never illegally poured out, and the bottle as a product is handled safely.

Further, it is the plug main body of the sealing plug that substantially seals the spout barrel of the main cap. To remove this plug main body from the spout barrel of the main cap, The surrounding outer ring must be separated by breaking the separation piece, and if the sealing plug is opened by mistake, the outer ring will always be separated from the plug body. It is possible to reliably and accurately judge that the bottle body has already been opened by simply looking at the state.

As described above, the sealing plug is attached to the spout barrel of the main cap and covers the spout barrel until the consumer purchases the bottle, so that the spout formed by the spout barrel is dusty. Prevent it from getting dirty.

To open the bottle, the pulling force is applied to the outer ring of the sealing stopper to break the separating piece to separate the outer ring from the stopper body, and then the stopper body is forcibly ejected. Achieve by pulling out from the cylinder.

In the state where the sealing plug is removed from the spout cylinder of the main cap, the bottle body is substantially closed by the reversible valve body simply by opening the spout cylinder.

From this state, when a pressing force is applied to the body of the bottle to make the bottle positive pressure, the reversible valve body is opened by this positive pressure, and the content liquid is poured out from the pouring cylinder and vice versa. When the pressing force acting on the bottle body is removed and the squeeze property of the bottle creates a negative pressure inside the bottle, this negative pressure causes the reversible valve body to open, and the contents liquid poured into the bottle Since an equal volume of air is sucked and the pressure inside the bottle is brought to atmospheric pressure, the reversible valve body returns to the closed state, and unless the pressing force acts on the body of the bottle, the reversible valve body substantially closes the bottle body. Is achieved and maintained.

That is, in order to pour out the content liquid from the bottle body, the opening / closing operation of the cap is not required at all, and it is sufficient to simply press the bottle body portion.

When the sealing plug is provided with a finger hook ring,
When removing the plug body from the spout tube of the main cap, the fingertips are hooked on the finger ring that has been ruptured by breaking the cut piece and then lifted up to easily remove the plug body from the spout tube. be able to.

Further, the height of the outer ring is defined by
By making it almost touch the upper surface of the top wall of the main cap, without breaking the separation piece, push up the body plate of the stopper body from the lower side of the outer ring using an elongated jig to tamper with the sealing stopper. It is possible to completely prevent the operation of opening the door.

Further, by providing a notch in the outer ring, the separation piece can be easily broken by grasping and pulling the outer ring portion of the notch portion,
Therefore, the operation of separating the outer ring from the plug body side can be simplified.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. The main cap 1 (see FIG. 1), which is an injection-molded product made of synthetic resin, has an overall cylindrical shape with a top, and the inner peripheral surface of the cylinder wall 2 is made of a synthetic resin blow-molded bottle. A screw thread is formed on the outer peripheral surface of the bottle mouth tube 28. The thread threadedly engages with the thread thread, and the spout tube 4 is erected at the center of the top wall 3 in a substantially truncated cone shape. A short cylindrical pressing cylinder piece 5 is hung on the lower surface of the top wall 3 facing the upper end surface of the body mouth cylinder 28, and a locking ridge 6 is projectingly provided on the upper end of the inner peripheral surface of the cylinder wall 2. It is composed.

The reversible valve body (see FIGS. 2 and 3) comprises a thin flat disk-shaped upper piece 8 and a lower piece having a diameter equal to the inner diameters of the two cylindrical walls of the main cap 1 where the locking strips 6 are provided. It has a structure in which the piece 9 and the piece 9 are integrally connected by a hinge 16. By forming a curved hole 12 in each of the upper piece 8 and the lower piece 9, a body portion and an arc-shaped bullet piece 11 are interposed. The connected valve piece 10, the valve hole 13 formed in the shape of a simple circular hole, the protruding fitting projection piece 14, and the opening diameter substantially equal to the outer diameter of the fitting projection piece 14 make it simple. A fitting hole 15 formed in a circular hole shape is provided.

A valve piece 10 and a valve hole 1 provided on the upper piece 8.
3, the fitting projection piece 14, and the fitting hole 15 are the valve holes 13 of the lower piece 9 when the hinge 16 is bent and the upper piece 8 is superposed on the lower piece 9 (see FIG. 1). , The valve piece 10, the fitting hole 15, and the fitting projection piece 14 are opposed to each other, and the check valve is configured by the combination of the valve piece 10 and the valve hole 13.
Due to the fitting into the fitting hole 15, the overlapping posture of the upper piece 8 and the lower piece 9 is maintained.

As is apparent from FIG. 3, the upper piece 8 and the lower piece 9
In the state before they are overlapped with each other, both valve pieces 10 are in a state of projecting thickly on the upper side. Therefore, when the upper piece 8 and the lower piece 9 are overlapped, the amount of protrusion is increased. Piece 11
Is elastically deformed and abuts against the opening edge of the corresponding valve hole 13. Therefore, the check valve constituted by the valve piece 10 and the valve hole 13 has a pressure that overcomes the elastic force of the elastic piece 11. The first time it is opened, it opens.

Therefore, in order to pour out the content liquid from the bottle body, it is necessary to apply a certain pressing force to the body of the bottle body. The inconvenience that the liquid is poured out is eliminated.

The sealing plug 17 (see FIGS. 4 to 6) is firmly secured in the spout 4 from the center of the lower surface of the flat disc-shaped main body plate 19 that abuts the upper end surface of the spout 4 of the main cap 1. A finger hook in the shape of a flat ring having a wall thickness substantially equal to that of the main body plate 19 with a substantially constant space around the main body plate 19 of the main plug body 18 in which a thin cylindrical plug piece 20 tightly fitted into the main body plate 19 is suspended. The ring 24 is integrally provided via one connecting piece 26 and two cutting pieces 27, and the lower edge of the ring 24 is on the upper surface of the top wall 3 of the main cap 1 with a substantially constant interval around the finger hook ring 24. A cylindrical outer ring 22 having a substantially contacting height is integrally provided via four separating pieces 25.

At the lower end of the outer peripheral surface of the stopper piece 20 of the stopper main body 18, there is provided an engaging peripheral strip 21 which is engaged with the lower end opening edge of the outlet formed by the outlet cylinder 4 from below. The close fitting of the piece 20 into the pouring tube 4 is firmly held.

Further, a notch 23, which widens upward over the entire height range, is provided in a part of the outer ring 22,
By pulling the outer ring 22 outward by grasping the edge of the outer ring 22 in the notch 23 portion with a fingertip, the four separating pieces 25 can be sequentially broken, so that the breaking of the separating piece 25 causes the outer ring 22 to break. This facilitates the separation from the stopper body 18.

The reversible piece 7 assembled by stacking the upper piece 8 on the lower piece 9 is in a state in which the peripheral edge of the main cap 1 is locked to the upper end portion of the cylindrical wall 2 of the main cap 1 ( 1), the main cap 1 is attached to the bottle mouth tube 28, and the peripheral edge of the main cap 1 is attached to the bottle mouth tube 28 by the pressing tube piece 5 of the main cap 1. It is pressed against the upper end surface and thus serves as a packing that achieves a seal between the bottle mouth tube 28 and the main cap 1.

[0029]

Since the present invention has the above-mentioned structure, it has the following effects. In order to open the spout of the main cap, the outer ring must be removed and the plug body must be removed.Therefore, visually check for the presence of this outer ring or the breakage of the separation piece that connects the outer ring and the plug body. Only by doing so, it is possible to easily and accurately determine whether or not the bottle has already been opened, and thus a high effect of preventing unauthorized opening of the bottle can be obtained.

Since the sealing stopper for preventing unauthorized opening is assembled in a state of covering the opening of the spout cylinder of the main cap forming the spout, it is possible to prevent the spout from becoming dirty due to adhesion of dust or the like. It is possible to effectively prevent it, so that the bottle as a product can be purchased with peace of mind and with a favorable impression.

Since the pouring of the content liquid from the bottle body is achieved by opening and closing the reversible valve that substantially opens and closes the bottle body, a simple pressing operation on the body portion of the bottle body substantially removes the bottle body. Opening and closing and pouring of the content liquid can be achieved at the same time,
Therefore, the entire pouring operation of the content liquid becomes extremely easy.

To open and close the reversible valve body, a certain amount of pressure is required, so that the content liquid will not be deliberately poured out due to the gripping force during handling of the bottle or withdrawal. Therefore, it can be preferably used without polluting the surroundings.

[Brief description of drawings]

FIG. 1 is an overall vertical sectional view showing an embodiment of the present invention.

2 is an overall plan view showing a developed state of a reversible valve body in the embodiment shown in FIG.

3 is an overall vertical cross-sectional view showing a developed state of a reversible valve body in the embodiment shown in FIG.

FIG. 4 is an overall front view of the sealing plug according to the embodiment shown in FIG.

5 is a semi-longitudinal sectional view of the sealing plug in the embodiment shown in FIG.

6 is an overall plan view of the sealing plug in the embodiment shown in FIG.

[Explanation of symbols]

 1; Main cap 2; Cylinder wall 3; Top wall 4; Discharge cylinder 5; Pressing cylinder piece 6; Locking strip 7; Reversible valve body 8; Upper piece 9; Lower piece 10; Valve piece 11; Bullet piece 12; Curved hole 13; Valve hole 14; Fitting projecting piece 15; Fitting hole 16; Hinge 17; Sealing plug 18; Plug body 19; Body plate 20; Plug piece 21; Engaging rim 22; Outer ring 23; Notch 24; Finger ring 25; Separation piece 26; Connecting piece 27; Cutting piece 28; Bottle mouth tube

Claims (4)

[Claims] 1. A main cap having a cylindrical top shape, which is attached to a bottle mouth tube (28) of a squeeze bottle and has a spout tube (4) standing upright in the center of the top wall (3). (1) and the bottle mouthpiece (2
A reversible valve body (7) that is assembled on the upper end surface of 8) in a form of closing the bottle mouth tube (28) and opens by positive pressure or negative pressure in the bottle body.
And, in the plug body (18) that tightly fits tightly into the pouring tube (4),
A sealing plug (1) in which a short tube-shaped outer ring (22) is integrally connected in a form surrounding the plug body (18) via a separation piece (25) which is easily broken.
Cap body for squeeze bottle which consists of 7) and. 2. A main body plate (19) of a plug main body (18) that abuts an upper end surface of a spouting cylinder (4) of a main cap (1), in a form surrounding the main body plate (19), in a ring shape. The finger hooking ring (24) is integrally connected with one unbreakable connecting piece (26) and a breakable cutting piece (27), and the outer ring (22) surrounds the finger hanging ring (24).
The cap body for a squeeze bottle according to claim 1, wherein the sealing plugs (17) are formed by continuously connecting the above. 3. The squeeze property according to claim 1, wherein the outer ring (22) of the sealing plug (17) has a height such that a lower end edge of the main cap (1) substantially abuts on an upper surface of the top wall (3) of the main cap (1). Cap body for bottles. 4. The outer ring (22) of the sealing plug (17) according to claim 1, 2 or 3, wherein a notch (23) is provided in a part of the short tubular body over the entire height range. Cap body for squeeze bottle.