JP2000109109A - Pouring cap - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pouring cap which is capable of stably discharging the liquid of sufficient and definite quantity by one squeeze of a cap, and applicable to a container of small diameter by providing a pouring pipe which is communicated with a space inside a cylindrical side wall and upright on a top wall, and projecting an elastic squeezable part on a base inclined wall. SOLUTION: An annular body 5 to be screwed and fixed to a container mouth part 100 is integrated with a pouring cylinder 6 to pour the liquid content in a container. The pouring cylinder 6 is provided with a cylindrical side wall 25 and a pouring pipe 27 on a top wall, and a partly inclined base inclined wall 30 is formed on an upper end of the cylindrical side wall 25. The pouring pipe 27 is formed at the position eccentric from the center of the container mouth part 100. In addition, an elastic squeezable part 31 is formed on the base inclined wall 30, and the liquid content in the container is poured from a forward end of the pouring pipe 27 by pressing to dent the squeezable part 31 by a finger. The definite quantity of the liquid corresponding to the volume of the squeezable part 31 can be poured thereby.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dispensing cap having a dispensing function, and more particularly, it is used as a cap for glass containers, rigid plastic containers, metal containers and the like. The present invention relates to a dispensing cap capable of dispensing a fixed amount of liquid content by crushing a part.

[0002]

2. Description of the Related Art As a container lid used for a glass container or a rigid plastic container, an inner cap attached to a container mouth and provided with a hole for pouring, and an overcap provided to cover the inner cap are provided. The one in which the contents are discharged from the discharge hole of the inner plug by shaking the container upside down is widely used. This type of container lid has been widely applied to containers filled with cosmetics such as hairdressing products and perfumes, but has the drawback that the inner plug becomes dirty due to dripping. In addition, since the contents are discharged by turning the container upside down and shaking vigorously, there is a disadvantage that the amount of the discharged liquid is not constant and the liquid is easily spilled.

[0003] As a container lid in which the above-mentioned drawbacks of the container lid are improved, Japanese Utility Model Laid-Open No. 6-81964 and the like provide a pipe or nozzle for pouring out the content liquid upright on the top surface of the inner plug. It has been proposed to provide a domed ridge on the surface. That is, in this container lid, the container is turned upside down, and the dome-shaped protruding portion is pressed and crushed (concave), whereby the content liquid is discharged from the pipe or nozzle for pouring. Therefore, the amount of liquid discharged corresponds to the volume of the recessed dome-shaped protrusion, and there is an advantage that a substantially constant amount of liquid can be discharged. In addition, by the elastic return of the recessed dome-shaped ridge, outside air is sucked into the container from the pipe or nozzle for pouring, whereby dripping can be effectively prevented.

[0004]

However, the container lid disclosed in the above-mentioned prior art is applicable to a container having a small mouth portion, such as a small container such as a cosmetic carried in a bag or the like. There is a problem that it is difficult. That is, in the container lid used for such a container, the size of the top surface of the inner plug attached to the container mouth is inevitably quite small, and a pipe or nozzle and a dome for pouring are provided in the top surface of this small area. Both of the ridges must be formed. Therefore, the dome-shaped protuberance must be extremely small. As a result, the dome-shaped protuberance cannot have a sufficient concave volume, and it becomes difficult to discharge a sufficient amount of liquid. This is because the crushing operation must be repeated many times in order to remove the amount of liquid. In addition, when the dome-shaped protruding portion is crushed and dented, there is a problem that it is difficult to return to the original shape and the function of preventing liquid dripping becomes insufficient. Is more remarkable as is larger. That is, when the dome protruding portion is pressed to be depressed, the dome-shaped wall portion is completely inverted and tends to have a stable shape, so that the depressed shape does not easily return to its original state, and the liquid dripping prevention function is unsatisfactory. It becomes something. Therefore, the dome-shaped protruding portion must have a small shape, and in order to prevent liquid dripping or the like by elastic return, the amount of liquid discharged by one crushing becomes even smaller. Furthermore, the smaller the dome-shaped protrusion is, the more difficult it is to perform the operation of crushing the dome-shaped protrusion for discharging the liquid.

Accordingly, an object of the present invention is to allow a sufficient amount and a constant amount of liquid to be stably discharged by a single crushing of the cap, and can be applied to a container having a small mouth portion. To provide a dispensing cap. Another object of the present invention is to easily perform elastic deformation due to crushing of a cap for discharging a container content liquid, and furthermore, the elastic deformation of the elastically deformed portion is instantaneously performed, and the content liquid is removed. An object of the present invention is to provide a pouring cap in which problems such as dripping are effectively prevented.

[0006]

According to the present invention, there is provided an annular body which is held and fixed to a container mouth and has an annular horizontal flange at an upper end, and a pouring cylinder provided on the annular body. In the dispensing cap, the dispensing cylinder has a cylindrical side wall having a lower end connected to a horizontal flange of the annular body, and a top wall formed by an upper end of the cylindrical side wall has a top wall. And a base inclined wall inclined downward from the top wall, and an upright pouring pipe communicating with the space in the cylindrical side wall is provided on the top wall, and on the base inclined wall, And a pouring cap provided with a protruding elastic crushing portion.

In the above-mentioned dispensing cap, the discharge of the content liquid is performed by tilting the container to which the cap is attached and crushing by pressing the elastic crushing portion formed on the inclined base wall of the cylindrical side wall. Can be performed more easily.
That is, a certain amount of liquid is discharged from the discharge pipe in accordance with the volume of the elastically crushed portion depressed by this pressing. Therefore, a certain amount of liquid can be always discharged by one crushing, and the amount of liquid can be adjusted by adjusting the pressing force to adjust the depression of the elastic crushing part. Furthermore, if the pressing force is released, the crushed portion that has been depressed returns elastically to its original shape, and the inflow of outside air from the discharge pipe causes
Liquid dripping is effectively prevented.

[0008] In the present invention, the most important feature is that the elastic crushing portion for discharging the liquid is formed by an inclined wall (base inclined wall).
Due to the fact that it is formed on the upper side, this makes it possible to apply this pouring cap to a container having a small mouth portion. That is, if an elastically crushed portion is formed on the horizontal wall of the pouring cylinder, the horizontal wall is naturally smaller than the diameter of the container mouth, and the horizontal wall must also be provided with a pouring pipe. . Therefore, the elastically crushed portion is also small, and it is difficult to apply such a container lid to a container having a small diameter. In particular, when the base inclined wall is formed on the cylindrical side wall of the pouring cylinder according to the present invention and the elastic crushing portion is formed on the base inclined wall, the size of the base inclined wall is By adjusting the length of the cylindrical side wall and the inclination angle of the inclined base wall without depending on the diameter of the mouth, the inclined base wall can be enlarged. In other words, even when a pouring pipe is provided at the upper end of the pouring cylinder or when applied to a container having a small mouth portion, the volume of the elastic crushing portion is increased by setting the base inclined wall large. As a result, the amount of the content liquid to be poured out by pressing the elastic crushing portion can be increased, and the pressing operation can be easily performed. Thus, the dispensing cap of the present invention can be applied to a small-bore container, which is a great advantage of the present invention. In addition, the special shape of the elastic crushing portion formed on the base inclined wall makes it possible to instantaneously return the crushed elastic crushing portion to its original shape, thereby significantly improving the liquid dripping prevention function. Is also a great advantage of the present invention.

In the present invention, since the above-described inclined base wall is formed at the upper end of the cylindrical side wall, the top wall formed at the upper end of the cylindrical side wall is usually formed by cutting a part of a circle. The crescent shape is missing, and a discharge pipe for discharging the content liquid is provided on the top wall of the crescent shape. Also,
The dispensing cap of the present invention is usually used as a composite container lid in which an overcap engaged with and fixed to an annular body of the dispensing cap is combined so as to cover the dispensing cylinder of the cap. The overcap is formed from a top plate and a skirt portion hanging down from the periphery of the top plate.When the overcap is engaged and fixed to the annular body on the inner surface of the top plate, A closing projection for closing the upper end of the dispensing pipe is formed. Good sealing performance can be maintained by the engagement between the closing projection and the upper end of the discharge pipe. For example, when the pouring pipe is not set upright, it is difficult to seal with such a closed projection. As described above, the composite container lid in which the above-described pouring cap is combined with the overcap can be applied to a container particularly required to be hermetically sealed, for example, a container for cosmetics to be carried in a bag or the like. Are also a great advantage of the present invention.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the present invention, an annular body held and fixed at a container mouth and a pouring cylinder provided with a pouring pipe for pouring a liquid in the container are integrally formed. Alternatively, both may be formed as separate members, and these may be used in combination. When the annular body and the pouring cylinder are formed integrally, there is an advantage that the number of components constituting the pouring cap is reduced and the production process is simplified. On the other hand, when the annular body and the injection tube are formed as separate members, the number of components increases, but there is an advantage that the annular body and the injection tube can be formed of different plastics. . That is, since the annular body is held and fixed at the container mouth by means such as fitting or screw fixing, it is preferable that the annular body be formed of relatively rigid and high-strength plastic. Since the tube has an elastically crushed portion, it is preferable that the tube be formed of a highly flexible soft plastic. It is an advantage of this embodiment that the annular body and the dispensing cylinder can be made of different plastics depending on such properties. Further, when the annular body and the pouring cylinder are formed integrally, the inner peripheral surface of the cylindrical side wall of the pouring cylinder is joined with the inner peripheral surface of the horizontal flange of the annular body in order to release the mold after the molding. Therefore, the inner diameter of the pouring cylinder (cylindrical side wall) is limited. However, when the annular body and the pouring cylinder are separated from each other, the size for such die cutting is required. There are no restrictions. That is, the pouring cylinder (cylindrical side wall)
Can be enlarged, and therefore, the volume of the elastically crushed portion can be increased. As a result, there is an advantage that the amount of the content liquid to be poured out by one crushing can be increased.

In the case where the annular body and the dispensing cylinder are separately provided, an appropriate projection is provided on the upper surface of the horizontal flange of the annular body,
By using the protrusion to engage or fit the lower end of the cylindrical side wall of the dispensing cylinder, both can be connected. Alternatively, a horizontal flange may be provided at the lower end of the cylindrical side wall, and the horizontal flange may be sandwiched between the horizontal flange of the annular body and the upper end of the container opening to connect the two. In this case, since the tubular body is formed of highly flexible and flexible plastic, the horizontal flange at the lower end of the tubular side wall functions as packing, and as a result, the sealing performance can be improved.

In the present invention, the elastic crushing portion formed on the inclined base wall connected to the top wall at the upper end of the cylindrical side wall rises from the inclined base wall and extends in the axial direction, and the upper end is inclined at a predetermined angle. It is preferably formed of a semi-cylindrical axial side wall and a flexible inclined wall formed so as to close the upper end of the axial side wall. In this case, the circumferential ends of the axial side wall have a height of substantially zero and are connected to the top wall at this portion, and the flexible inclined wall is formed by the inclined angle formed by the base inclined wall and the horizontal plane. At a smaller angle than the top wall.

When the shape of the elastic crushing portion is as described above, when the flexible inclined wall of the crushing portion is pressed, both the flexible inclined wall and the axial side wall are in the boundary portion with the top wall at the upper end. As the fulcrum is used as a fulcrum, the crushing proceeds smoothly. In addition, since the concave shape of the elastically crushed portion becomes an uneven and unstable shape, the elastic shape instantaneously returns to the original shape when the pressing force is released. Therefore, the liquid remaining or attached to the pouring pipe is immediately collected in the container, and the dripping or the like is effectively prevented. Also, when the elastic crushing section is pressed to discharge the liquid content, a relatively large force is required when the axial side wall is dented, so that there is an advantage that an appropriate tactile sensation is given to the operator. For example, when this crushed portion is formed in a dome shape, the shape depressed by the crushing is likely to be a stable dome inverted shape, so that it is difficult to return to the original shape even when the pressing force is released, and it is also necessary to work when crushing. There is a drawback that the tactile sensation given to the user is dull, but such a problem can be effectively solved by forming the elastic crushing portion in the above-described shape. Further, when the shape of the elastic crushing portion is as described above, a sound is generated when the crushing portion is crushed and when it returns to the original shape. And the commercial value of the container is increased.

Further, in the present invention, the thickness of the axial side wall of the elastically crushed portion is adjusted by the inner peripheral portion of the inclined base wall (near the base of the axial side wall) and the flexible inclined wall at the upper end of the axial side wall. It is preferable that the thickness be greater than the thickness. As a result, the independence of the axial side wall is enhanced, so that the elastic return force of the elastically crushed portion when crushed is further increased, and the liquid dripping prevention function can be further enhanced.

In the present invention, it is also possible to form the elastic crushing portion in a multi-stage shape by alternately connecting the above-mentioned semi-cylindrical axial side walls and flexible inclined walls connected to the upper end of the axial side walls. . As the volume of the hollow elastic crushing portion formed on the base inclined wall is increased, the amount of liquid discharged by one crushing operation can be increased, and the horizontal surface of the flexible inclined wall connected to the upper end of the axial side wall can be increased. As the inclination angle (corresponding to the inclination angle of the upper end of the axial side wall) approaches zero (closer to the horizontal plane), the volume of the elastically crushed portion increases. However,
As the inclination angle of the flexible inclined wall approaches zero, it becomes more difficult to smoothly recess the elastically crushed portion (crushability is reduced). However, as described above, by forming the elastically crushable portion in multiple stages, the internal volume of the elastically crushable portion can be increased as much as possible without impairing its crushability.

In the above-described elastic crushing parts having various structures, the uppermost flexible inclined wall connected to the top wall of the upper end of the cylindrical side wall, particularly the upper end of the flexible inclined wall is elastically crushed. It is preferable to provide a pressing piece for crushing the portion. By pressing such a pressing piece against the inclined base wall, the elastically crushed portion can be crushed smoothly, and the liquid content can be easily poured out. In this case, the worker can confirm the end of the pouring operation by the contact of the pressing piece with the inclined base wall.

The pouring pipe provided on the flexible inclined wall of the above-mentioned elastic crushing portion or the top wall where the semi-cylindrical axial side walls are connected is disposed at the center of the container mouth, that is, at the center of the pouring tube. It may be formed, but it is particularly preferable that it is formed at a position eccentric from its center. By forming the pouring pipe at such an eccentric position, the top wall can be made as small as possible, and the above-mentioned base inclined wall can be made as large as possible. This is advantageous in increasing the amount of liquid discharged by crushing.

In the case where the above-described pouring cap is used as a composite container lid in combination with the overcap, since the pouring pipe is provided upright,
When the overcap is engaged with and fixed to the annular body to cover the spout cylinder, a closing projection that closes the upper end of the spout pipe can be provided on the inner surface of the top plate of the overcap. The closing projection may be fitted into the upper end of the pouring pipe, or may be formed into an annular shape, into which the upper end of the pouring pipe is fitted.

In the above-mentioned composite container lid, the annular body and the overcap may be such that the overcap is engaged and fixed to the annular body so that both can be seen as an integral article in appearance. It is preferable to increase the value. For this reason, it is preferable that the annular body and the overcap have substantially the same outer shape when viewed from the upper surface in a state where both are engaged and fixed. Further, when the horizontal cross-sectional shape of the body of the container is elliptical, it is preferable that the outer shape of both of the above is also elliptical. Further, when the outer shape of the overcap as viewed from the upper surface is elliptical, two of the above-described closing projections are formed, and these closing projections are lined with each other on the long axis of the elliptical shape and about the short axis. It is preferable to arrange them at symmetrical positions. By providing two closing projections at such a position, the upper end of the spout pipe can be reliably closed even when the annular body is engaged in any direction of the overcap. Eliminating the need for alignment when mounting the device improves workability.
When the shape of the overcap is circular when viewed from above, it is usually better to set the position of the spout pipe at the center of the container mouth, and at a position eccentric from the center of the container mouth. When the outlet pipe is arranged, it is necessary to provide a special positioning mechanism in order to surely close the upper end of the outlet pipe by the closing projection.

In the above-described dispensing cap or the composite container lid, the annular body is attached to the container mouth by fitting or screwing. From the viewpoint that the used container lid is separated from the container and discarded. Is preferably configured to be attached to the container mouth by screw engagement. Further, the annular body preferably includes an inner cylinder having a thread on the inner surface and an outer cylinder located outside the inner cylinder. That is, when the annular body is fixed to the container mouth by screw engagement, since the outer peripheral surface of the container mouth having a thread is a cylinder, the portion of the annular body having the thread is also a cylinder. . However, the shape of the body of the container is not limited to a cylinder. For example, there is a container having a body having a flat shape such as an elliptical flat cross section. For example, because it has the advantage of being able to see the labels and the like affixed to the torso well, small-volume containers and the like often have such a flat-shaped torso, In particular, it is often found in cosmetics and other fields. Therefore, by forming the annular body fixed to the container mouth portion with the outer cylinder and the inner cylinder having the thread as described above, even if the inner cylinder has a cylindrical shape, the lower end of the outer cylinder is formed. Can be smoothly continued to the shape of the container shoulder (portion extending from the body to the mouth). That is, regardless of the shape of the body of the container, the outer shape of the annular body can be made continuous with the shape of the container shoulder, so that the container lid can be seen in a part of the container. In the field of cosmetics and the like, which can enhance the commercial value of the container, and in particular, the appearance of the container is required, a pouring cap or the like provided with such a double-walled annular body of the inner cylinder and the outer cylinder. Composite container lids are extremely useful.

In such an annular body having a double wall structure,
The upper end of the inner cylinder is connected to the inner surface of the horizontal flange, and the upper end of the outer cylinder is connected to the outer peripheral edge of the horizontal flange. Form a horizontal step in the middle of this outer cylinder,
Further, it is preferable to form a ridge for locking the overcap on the outer peripheral surface of the outer cylinder above the horizontal step portion. That is, on the ridge of the annular body formed at such a position,
With a structure that locks and fixes the position of the overcap, the overcap is also made to have the same shape as the outer shape of the container shoulder, so that the composite container lid and the container are visually observed as a whole as a whole, The commercial value is significantly increased.

[0022]

BRIEF DESCRIPTION OF THE DRAWINGS The invention will be described in more detail hereinafter with reference to an embodiment shown in the accompanying drawings. (First Embodiment) FIGS. 1 to 5 show a first embodiment of a pouring cap according to the present invention, and FIG. 1 shows an entire structure of the pouring cap of the first embodiment. FIG. 2 is a side cross-sectional view showing the cap along with a container mouth, and FIG. 2 is a view showing a partial cross section and a part of a side surface of the pouring cap viewed from a direction different from FIG. , FIG. 3 is a view showing the upper surface of the pouring cap (with the overcap removed) together with the container, and FIG.
FIG. 5 is a view showing a side surface of the pouring cap (integrally formed product of the annular body and the pouring cylinder) shown in FIG. 1 together with a side cross section of the overcap, and FIG. 5 is a diagram showing the pouring cap of FIG. FIG. 4 is a diagram illustrating an upper surface of an overcap attached to the circumstance. still,
The side cross section of the dispensing cap shown in FIG.
2 corresponds to a cross section taken along the line II-II of FIG. 3.

With particular reference to FIGS. 1, 2 and 4, the dispensing cap, generally designated 1, is used in combination with the overcap 2 as a composite container lid. The pouring cap 1 has an annular body 5 screwed to the container opening 100.
And a pouring cylinder 6 for pouring the liquid in the container. As is clear from FIGS. 1 and 2, the annular body 5 and the pouring cylinder 6 are integrally formed.

The annular body 5 has an inner cylinder 10 and an outer cylinder 11, both of which are connected via a horizontal flange 12 at the upper end. The horizontal flange 12 has an elliptical shape (long axis A, short axis B) as shown in FIG.
Extends downward from the outer peripheral edge of the horizontal flange 12, and the inner cylinder 10
2 extends downward from the inner surface.

On the inner surface of the inner cylinder 10, there is provided a screw 15 which is screw-engaged with a screw 100a formed on the outer peripheral surface of the container mouth portion 100.
The annular body 5 is screwed to the container mouth 100. Therefore, the inner cylinder 10 has a cylindrical shape similarly to the container mouth portion 100, and has a circular plane cross section. A circumferential projection 16 for holding packing is formed on the inner surface of the inner cylinder 10 above the screw 15, and the inner surface of the horizontal flange 12 is located at a position inside the inner cylinder 10. A lower projection 17 for pressing the packing is formed. That is, as shown in FIGS. 1 and 2, the packing 18 is held by the circumferential projection 16 so as not to drop onto the upper part of the inner cylinder 10. And fix the screws firmly. As a result, the lower projection 17 firmly adheres the packing 18 to the upper end of the container mouth 100, and good sealing performance is secured.

As is clear from FIG. 1, a horizontal step portion 20 is formed in the middle of the outer cylinder 11, and a portion above the horizontal step portion 20 has a small diameter and a portion below has a large diameter. . A locking projection 21 for locking the overcap 2 is formed on the outer peripheral surface of the outer cylinder 11 above the horizontal step portion 20. Further, as is apparent from the top view of FIG. 3, the outer shape of the horizontal flange 12 is elliptical, and therefore, the outer cylinder 11 extending from the outer peripheral edge of the horizontal flange 12 is also elliptical. FIG.
FIG. 2 shows a cross section on the long axis A of the elliptical shape, and FIG. 2 shows a cross section on the short axis B. As can be understood particularly from FIG. And the wall of the upper part of the outer cylinder 11 overlap.

The pouring cylinder 6 has a cylindrical side wall 25 and a cylindrical side wall 2.
5 has a top wall 26 formed so as to close a part of the upper end thereof and extending substantially in the horizontal direction (see FIGS. 3 and 4), and on the top wall 26, an outlet pipe 27 is provided. Have been. The pouring cylinder 6 is formed integrally with the annular body 5 described above, and therefore, the cylindrical side wall 25 rises from the inner peripheral edge of the horizontal flange 12 of the annular body 5. That is, the inner peripheral surface of the cylindrical side wall 25 and the horizontal flange 1
If there is a step between the inner peripheral edge of the mold 2 and the mold, it becomes difficult to remove the mold after molding. Therefore, it is necessary to make the shape without such a step. The upper end of the cylindrical side wall 25 is partially inclined. In particular, as is apparent from FIGS. 1, 2 and 4, a base inclined wall 30 is formed so as to close the inclined upper end. 30 is continuous with the top wall 26. Therefore, as shown in FIG. 3, the top wall 26 has a crescent shape, and the discharge pipe 27 is formed at a position eccentric from the center of the container mouth 100 (the center of the annular body 5). Will be. Further, on the base inclined wall 30, an elastic crushing part 31 is formed.
The liquid in the container is poured from the tip of the pouring pipe 27 by pressing and depressing 1 with a finger. This crushed part 31
Will be described later.

The overcap 2 includes a top plate 35,
And a skirt portion 36 extending downward from the peripheral edge of the top plate 35. The locking projection 21 provided on the outer peripheral surface of the outer cylinder 11 of the annular body 5 is provided on the inner surface of the skirt portion 36. A ridge 37 is formed to engage with the ridge 37. That is,
The over cap 2 is provided with the ridge 37 and the locking projection 2.
By engagement with the outer cylinder 11, the lower end of the skirt portion 36 comes into close contact with the horizontal step portion 20 formed on the outer cylinder 11 in this state. I have. Therefore, as shown in FIG. 5, the cross-sectional shape of the overcap 2 is an elliptical shape that substantially matches the flat cross-sectional shape of the outer cylinder 11 of the annular body 5. The composite container lid attached to the container has an external appearance that is integrated with the container, and has high commercial value.

Further, two closing protrusions 38 are formed on the inner surface of the top plate 35 of the overcap 2, and when the overcap 2 is fixed to the annular body 5, Either one of the closing projections 38 is fitted, and by this fitting, the outer peripheral surface of the closing projection 38 comes into close contact with the inner peripheral surface at the upper end of the discharging pipe 27 and the discharging pipe 2
The upper end of 7 is closed to prevent leakage of the content liquid. By the way, since the above-mentioned elliptical overcap 2 has a line-symmetric shape with the long axis A or the short axis B as a center, there are two directions of the overcap 2 locked and fixed to the annular body 5. On the other hand, the pouring pipe 27 provided in the pouring cylinder 6 is formed at a position eccentric from the center of the annular body 5 (corresponding to the center of the container opening 100). Therefore, regardless of the orientation of the overcap 2 locked and fixed to the annular body 5, the closing protrusion 38 is so fitted that the closing protrusion 38 and the upper end of the pouring pipe 27 are securely fitted. It is necessary to provide two. In this case, as shown in FIG. 3, the position of the pouring pipe 27 is set on the major axis A of the ellipse formed by the outer cylinder 11 (substantially the same as the ellipse formed by the overcap 2 in FIG. 5). In addition to the setting, it is preferable to set the two closing projections 38 on the long axis A and at positions that are line-symmetric with respect to the short axis B. Note that the closing projection 38 is not limited to one in which the closing projection 38 is fitted into the inside of the upper end of the pouring pipe 27. For example, the closing projection 38 is formed in a ring shape, and the upper end of the pouring pipe 27 is fitted in the inside. May be something. In this case, the closing protrusion 38 is provided on the outer peripheral surface of the upper end of the pouring pipe 27.
And the upper end of the discharge pipe 27 is closed.

In the above-described pouring cap 1 of the present invention, the elastic crushing portion 31 formed on the base inclined wall 30 includes a semi-cylinder upright wall 40 oriented in the axial direction of the cap, The upright wall 40 is formed from a flexible inclined wall 41 formed so as to close the upper end thereof.
That is, the upper end of the upright wall 40 is inclined, and the flexible inclined wall 41 is also connected to the top wall 26. 1 and 2, the height of the upright wall 40 is exactly zero at the upper end of the base inclined wall 30. That is,
Each of the base inclined wall 30, the upright wall 40, and the flexible inclined wall 41 has a shape connected to the top wall 26 extending at the upper end in the horizontal direction, and the inclination angle α of the base inclined wall 30 with respect to the horizontal plane is The inclination angle β of the flexible inclined wall 41 with respect to the horizontal plane is larger (see FIG. 3).

A pressing piece 43 is formed at the upper end of the flexible inclined wall 41 via a cylindrical support 42, and a rib 44 connected to the support 42 is formed in the center of the back surface of the pressing piece 43. Are formed. That is, when the pressing piece 43 is pressed with a finger in a state where the container is tilted, the elastic crushing portion 31 is crushed and the content liquid is poured out. At the time of this crushing, first, the flexible inclined wall 41 is recessed by the support column 42, and then the rib 44 abuts against the upright wall 40, so that the thin inner peripheral portion of the base inclined wall 30 is crushed downward and the upright wall is crushed. 40 is tilted toward the base inclined wall 30 side, and then the crushed portion 31 is completely dented when the back surface of the pressing piece 43 comes into close contact with the outer peripheral edge of the base inclined wall 30, and the crushed portion 31
A certain amount of the liquid content is discharged from the discharge pipe 27 in accordance with the volume of the liquid.

In such an embodiment, since the crushing portion 31 is formed on the inclined base wall 30, the volume of the crushing portion 31 can be increased, and particularly in a small-volume container having a small diameter of the container opening 100. The pouring cap 1 can be effectively applied. That is, even when the diameter of the container opening 100 is small, the height of the base inclined wall 30 can be increased by adjusting the height and the inclination angle α of the pouring cylinder 6,
Therefore, by increasing the size of the base inclined wall 30, the volume of the crushing portion 31 can be increased, and the amount of liquid poured out by one crushing can be increased. The inclination angle α of the base inclined wall 30 may be set according to the diameter of the container mouth or the like so that the desired volume of the crushed portion is secured.

Further, when the pressing piece 43 is pressed with a finger and crushed, the upright wall 40 is unlikely to be dented, so that when the rib 44 comes into contact with the upright wall 40, a sufficient tactile sensation is given to the user. In addition, since the back surface of the pressing piece 43 is in close contact with the inclined base wall 30, the operator can clearly recognize that the crushed portion 31 is completely depressed, and also clearly recognize the end point of the crushing operation. Therefore, the amount of liquid discharged by one crush can be made constant. Further, since the elastic crushing portion 31 is formed by the semi-cylindrical upright wall 40 and the flexible inclined wall 41 as described above, the shape of the elastic crushing portion 31 depressed by crushing has a complicated shape having many irregularities. When the pressing force is released, the shape becomes unstable
The liquid elastically returns to its original shape at once, and the liquid remaining in the pouring pipe 27 or adhering to the upper end thereof is promptly collected in the container, so that dripping and the like are effectively prevented.

In the spout cap 1 of the present invention, it is preferable that the thickness of the upright wall 40 is larger than the thickness of the inner peripheral portion of the base inclined wall 30 and the thickness of the flexible inclined wall 41. 40 has a thickness of about 0.7 mm, and the inner peripheral portion of the base inclined wall 30 and the thickness of the inclined wall 41 have a thickness of 0.5 mm.
It is good to be about. That is, the thickness of the inner peripheral portion of the base inclined wall 30 and the thickness of the flexible inclined wall 41 are reduced to some extent, so that the crushing operation by pushing the pressing piece 43 can be performed smoothly. Further, by making the upright wall 40 thick to some extent, the independence of the upright wall 40 is enhanced, so that a sufficient tactile sensation can be given to the user during the crushing operation, and the independence of the recessed upright wall 40 can be improved. Since the resilience is enhanced and the elastic return is performed at once,
The effect of sucking the content liquid remaining or adhered in 7 into the container is enhanced, and the dripping from the upper end of the pouring pipe 27 can be more effectively prevented.

(Second Embodiment) FIGS. 6 and 7 show the structure of a pouring cap according to a second embodiment of the present invention. That is, FIG.
FIG. 7 is a diagram showing a side cross section of the pouring cap of the second embodiment together with an overcap and a container mouth, and FIG. 7 is a diagram showing a side surface of the pouring cap of FIG. 6 (with the overcap removed). is there. Note that the basic structure of the pouring cap or the composite container lid in these figures is the same as that of the first embodiment, for example, the planer outer shape of the annular body 5 (outer cylinder 11) is elliptical. Only the parts different from the examples and the parts necessary for the description are shown by the reference numerals. FIG. 6 shows a cross section on the major axis of the ellipse.

In the pouring cap 1 of the first embodiment,
Although the annular body 5 and the pouring cylinder 6 are formed integrally,
In the embodiment, the annular body 5 and the pouring cylinder 6 are formed separately. That is, the horizontal flange 12 at the upper end of the annular body 5
Is formed on the upper surface of the dispensing cylinder 6.
At the lower end of the cylindrical side wall 25, a concave portion corresponding to the peripheral protrusion 50 is formed. By fitting the peripheral protrusion 50 into this concave portion, the spout cylinder 6 and the annular body 5 are connected. Is done. By separating the annular body 5 and the pouring cylinder 6 as described above, the annular body 5 is formed of a relatively rigid plastic, and the pouring cylinder 6 is formed of a highly elastic and flexible plastic. can do. Further, when the annular body 5 and the pouring cylinder 6 are formed integrally as in the first embodiment, the inner surface of the cylindrical side wall 25 and the inner peripheral edge of the horizontal flange 12 are removed for die cutting. It must be formed in a straight line. However, as in the second embodiment, the annular member 5
When the injection tube 6 and the injection tube 6 are formed separately, there is no limitation on the die-cutting as described above. Therefore, a step 51 is formed between the inner surface of the cylindrical side wall 25 and the inner peripheral edge of the horizontal flange 12. Are formed. Therefore, the inner diameter of the cylindrical side wall 25 can be set as large as possible, the base inclined wall 30 can be enlarged, and the volume of the elastically crushed portion 31 can be increased. That is,
The amount of liquid to be dispensed by one crushing operation can be increased, which is an excellent advantage of the second embodiment.

Further, in the second embodiment, the elastically crushing portions 31 on the inclined base wall 30 formed on the cylindrical side wall 25 of the pouring cylinder 6 are formed in multiple stages. That is, the crushed portion 3
In 1, two semi-cylindrical upright walls 40 a and 40 b and two flexible inclined walls 41 a and 41 b are alternately connected.
That is, from the base inclined wall 30, the first upright wall 40a
Is upright, and the upper end of the upright wall 40a is closed by a first flexible inclined wall 41a.
The second upright wall 40b rises from above a, and the upper end of the upright wall 40b is closed by the second flexible inclined wall 41b. Also, the first upright wall 40a and the second upright wall 4
0b is substantially zero in height at both ends,
This portion is connected to the top wall 26. Further, both the first flexible inclined wall 41a and the second flexible inclined wall 41b are connected to the top wall 26 at the upper end. First
The inclination angle of the flexible inclined wall 41a is smaller than the inclination angle α of the base inclined wall 30, and the inclination angle of the second flexible inclined wall 41b is the inclination angle of the first flexible inclined wall 41a. Even smaller. Therefore, when the pressing piece 43 is pushed in, the inner peripheral portion of the second flexible inclined wall 41b, the first flexible inclined wall 41a, the second upright wall 40b, the base inclined wall 30, and the first inclined wall 40b. The crushing proceeds smoothly in the order of the upright wall 40a, and the back surface of the pressing piece 43 comes into close contact with the outer peripheral edge of the inclined base wall 30, whereby the crushing ends.

As described above, a great advantage of providing the elastic crushing section 31 in multiple stages is that the volume of the elastic crushing section 31 can be increased, and the amount of liquid poured out by one crushing can be increased. That is, referring to FIG. 1 of the first embodiment, in order to maximize the volume of the elastic crushing portion 31, the inclination angle β of the flexible inclined wall 41 must be reduced to zero (the inclined wall 41 becomes a horizontal plane). I just need. However, in this case, it is difficult to crush the elastic crushing portion 31 because the wall 41 is not inclined. However, as shown in the second embodiment, the volume of the elastically crushable portion 31 is increased as much as possible without impairing the crushability of the crushable portion 31 by making the elastically crushable portion 31 multi-tiered. This makes it possible to increase the amount of liquid to be discharged by the operation. Although the elastic crushing portions 31 are formed in two steps in the examples of FIGS. 6 and 7, it is needless to say that three or more steps can be provided depending on the inner diameter of the cylindrical side wall 25. is there. Also in the second embodiment, as in the first embodiment, the thicknesses of the upright walls 40a and 40b are the same as those of the inner peripheral portion of the base inclined wall 30, the flexible inclined walls 41a and 41b.
It is preferable that the thickness be larger than the thickness of 41b.

(Third Embodiment) FIG. 8 shows a side cross section of a pouring cap according to a third embodiment together with an overcap and a container mouth. This pouring cap is substantially the same as that of the first embodiment except that no packing is used. That is, in this example, the circumferential protrusion 16 for holding the packing is not formed on the inner surface of the inner cylinder 10, and a relatively thick lower protrusion 60 is provided from the inner circumferential edge of the horizontal flange 12. This thick lower projection 60 is pressed against the upper end of the container opening 100 directly to ensure good sealing performance. Further, in this embodiment, it is preferable to provide a small circumferential protrusion 61 at the lower end of the lower protrusion 60. With such small projections 61, the pressure contact force on the upper end of the container mouth 100 can be increased, and the sealing performance can be further improved. In the overcap 2 attached to the pouring cap 1 of the third embodiment, the two closing projections 38 provided on the inner surface of the top plate 35 are connected to the pouring pipe 2.
The upper end of the pouring pipe 27 is closed in close contact with the outer peripheral surface of the upper end of the pipe 7.

(Other Embodiments) First to Third Embodiments
In the specific examples shown in the embodiments, various design changes are possible. For example, in the dispensing cap 1 of the first embodiment, the elastic crushing portion 31 can be formed in multiple stages as shown in the second embodiment, and the annular body 5 and the dispensing cylinder 6 are formed in the second stage. It can be formed separately as shown in the embodiment.
Further, in the pouring cap 1 of the second embodiment, as shown in the third embodiment, it is possible to adopt a structure in which the sealing property is secured without using packing. Further, in the first to third embodiments, the annular body 5 and the overcap 2 have elliptical cross-sectional outlines.
This can be circular. In this case, the side cross section of the annular body 5 has a shape as shown in FIG. 2, for example.
Further, it is preferable that the pouring pipe 27 provided in the pouring cylinder 6 is located at the center of the annular body 5 (corresponding to the center of the container mouth portion 100). It is preferable to form one at the center of the top plate 35. However, in this case, it is difficult to increase the size of the base inclined wall 30, and it is not possible to increase the volume of the elastic crushing portion 31, so that the amount of the content liquid discharged by one crushing operation is increased. Is not preferred. Further, in the case where the injection pipe 27 is formed at an eccentric position while the cross-sectional shape of the overcap 2 is circular, some positioning mechanism is provided so that the closing projection 38 and the injection pipe 27 are fitted. It is necessary to provide between the ring member 2 and the annular body 5. In the first to third embodiments, the upright wall 40 and the like constituting the elastic crushing portion 31 may be slightly inclined, and the top wall 26 may be slightly inclined.

(Container lid material) In the present invention, in the composite container lid composed of the above-described various structures of the pouring cap and the overcap, for example, the resin used for molding the overcap is low-, medium-, or high-. High density polyethylene, linear low density polyethylene, polypropylene, thermoplastic polyester, polyamide, styrene resin, A
Various plastics such as BS resin can be used.
Further, in order to form a pouring cap in which an annular body and a pouring cylinder are integrally formed as shown in the first embodiment,
Because it is necessary to form a crushed part with elasticity,
What mix | blended various rubbers or thermoplastic elastomers with the above various plastics, for example, polypropylene, is used. Further, as shown in the second embodiment, when the annular body and the injection cylinder are formed separately, the annular body is molded from the above various plastics such as polypropylene, and the injection cylinder is It is preferable to mold with various rubbers or thermoplastic elastomers. Further, the packing used in the first and second embodiments can be formed using low-density polyethylene, ethylene-based polymer, various rubbers or thermoplastic elastomers, acrylic resin plastisol, vinyl chloride resin plastisol, or the like.

[0042]

According to the pouring cap of the present invention, an elastic crushing portion for discharging the liquid in the container is formed on the inclined base wall, and the size of the inclined base wall is equal to the diameter of the opening of the container. Even if the diameter of the container opening is small, the volume of the elastic crushing portion can be increased by setting the inclined base wall large, so that the amount of liquid poured out by one crushing can be increased. Therefore, the pouring cap of the present invention
In particular, it is effectively applied to small-capacity containers for cosmetics and the like. Further, in the present invention, the elastic crushing portion is formed by a semi-cylindrical axial wall (upright wall) extending in the axial direction from the base inclined wall, and a flexible member formed so as to close an upper end of the axial wall. By forming the elastically crushed portion from the sloping wall, the crushability can be enhanced, and the crushed elastically crushed portion can be instantaneously elastically returned to the original shape. In particular, since the elastic recovery is performed instantaneously, the content liquid remaining or attached to the pouring pipe can be quickly returned to the container, so that dripping from the upper end of the pouring pipe can be effectively prevented. Further, the thickness of the axial wall is
By making the inner peripheral part of the base inclined wall and the thickness of the inclined wall at the upper end of the axial wall thicker, the above-mentioned elastic return function can be enhanced, and the performance of preventing liquid dripping can be further improved.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing the entire structure of a spout cap according to a first embodiment, together with an overcap and a container mouth.

FIG. 2 is a view showing a partial cross section and a partial side surface of the pouring cap as viewed from a direction different from that of FIG.

FIG. 3 is a diagram showing an upper surface of a discharge cap together with a container.

FIG. 4 shows a side view of the dispensing cap shown in FIG. 1 together with a side cross section of the overcap.

FIG. 5 shows a top view of an overcap used in combination with the dispensing cap of FIG. 1;

FIG. 6 is a diagram showing a side cross section of a discharge cap according to a second embodiment, together with an overcap and a container mouth.

FIG. 7 is a view showing a side surface of the dispensing cap of FIG. 6;

FIG. 8 is a diagram showing a side cross section of a pouring cap according to a third embodiment together with an overcap and a container mouth.

[Explanation of symbols]

 2: Overcap 5: Annular body 6: Dispensing cylinder 10: Inner cylinder 11: Outer cylinder 12: Horizontal flange 20: Horizontal step 25: Cylindrical side wall 26: Top wall 27: Pour pipe 30: Base inclined wall 31 : Elastic crushing part 40: Half cylindrical upright wall 41: Flexible inclined wall 43: Pressing piece

Continued on the front page F-term (reference) 3E084 AA04 AA12 AA24 AA32 AB01 AB09 BA03 CA02 CB02 CC03 CC04 CC05 DA02 DB12 DB13 DC03 DC04 DC05 EA04 EC03 EC04 EC05 FA09 FB01 FC07 GA04 GA08 GB04 GB12 HA03 HB05 HD01 KB01 LA17 LB02 LB02 LC20

Claims (15)

[Claims] 1. A pouring cap comprising an annular body held and fixed to a container mouth and having an annular horizontal flange at an upper end, and a pouring cylinder provided on the annular body, wherein the pouring cylinder is A lower end portion having a cylindrical side wall connected to a horizontal flange of the annular body, an upper end surface formed by an upper end portion of the cylindrical side wall,
A top wall and a base inclined wall inclined downward from the top wall are formed. On the top wall, an upright pouring pipe communicating with the space in the cylindrical side wall is provided, and a top pipe is provided on the base inclined wall. A spout cap, characterized in that an elastic crushing portion is provided protruding therefrom. 2. The spout cylinder is integral with the annular body,
The pouring cap according to claim 1, wherein the cylindrical side wall of the pouring cylinder is integrally connected to the horizontal flange of the annular body. 3. The dispenser according to claim 1, wherein the dispensing cylinder is separate from the annular body, and a cylindrical side wall of the dispensing cylinder is fixedly engaged with an upper surface of a horizontal flange of the annular body. cap. 4. The crushing portion rises from the inclined base wall, extends in the axial direction, and has a semi-cylindrical axial side wall having an upper end inclined at a predetermined angle, and closes an upper end of the axial side wall. A circumferentially opposite end of said axial side wall is substantially zero in height and is connected to said top wall at this point, said flexible inclined wall 2. The dispensing cap according to claim 1, wherein the wall is connected to the top wall at an angle smaller than an inclination angle formed by the inclined base wall and a horizontal plane. 3. 5. The dispensing cap according to claim 4, wherein a pressing piece for crushing is connected to the flexible inclined wall of the crushing portion. 6. The dispensing cap according to claim 4, wherein the crushing portion is formed in multiple stages by alternately connecting a plurality of axial side walls and flexible inclined walls. 7. The crushing portion according to claim 4, wherein the axial side wall is formed thicker than the inner peripheral portion of the base inclined wall and the flexible inclined wall of the crushing portion. Dispensing cap. 8. The pouring cap according to claim 1, wherein the pouring pipe is formed at a position eccentric from the center of the container mouth. 9. The dispensing cap according to claim 1, wherein the annular body includes an inner cylinder having a thread on an inner surface, and an outer cylinder located outside the inner cylinder. 10. An overcap, comprising: the pouring cap according to claim 1; and an overcap engaged with and fixed to an annular body of the pouring cap so as to cover the pouring cylinder of the pouring cap. The cap is formed of a top plate and a skirt portion hanging down from the periphery of the top plate. When the overcap is engaged and fixed to the annular body on the inner surface of the top plate, the cap is poured. A composite container lid, wherein a closing projection for closing an upper end of the pipe is formed. 11. The overcap and the annular body,
The composite container lid according to claim 10, wherein the outer shape when viewed from above has substantially the same elliptical shape. 12. The composite container lid according to claim 11, wherein the pouring pipe is located on a long axis of the elliptical shape. 13. The composite container lid according to claim 11, wherein the closing projection is in close contact with an inner peripheral surface or an outer peripheral surface of an upper end of the pouring pipe when the overcap is closed, and the upper end of the pouring pipe is closed. 14. The two closing projections are formed, and the two closing projections are formed on the major axis of the elliptical shape and at positions symmetrical with each other about the minor axis. A composite container lid according to claim 13. 15. The annular body includes an inner cylinder having a thread on an inner surface, and an outer cylinder located outside the inner cylinder, and an upper end of the inner cylinder is connected to an inner surface of a horizontal flange. And
The upper end of the outer cylinder is connected to the outer peripheral edge of the horizontal flange, and a horizontal step is formed on the outer cylinder,
A ridge for locking the overcap is formed on the outer peripheral surface above the horizontal step of the outer cylinder, and the skirt portion of the overcap locked to the annular body by engagement with the ridge. The composite container lid according to claim 10, wherein a lower end is in close contact with an upper surface of the horizontal step portion.