JP2022041065A - Discharge cap - Google Patents

Abstract

To provide a discharge cap which has excellent operability.SOLUTION: A discharge cap 1 is provided which includes: a mounting cylinder part 20 which is mounted on a mouth part 3 of a container body 2 in which a content is stored; and a closed part 21 which closes the mouth part of the container body, and in which a discharge port 27 is formed for discharging the content. At the closed part, an elastic deformation part 26 is formed which can elastically deform downward and increases an internal pressure of the container body by elastic deformation. At the elastic deformation part, an operation protrusion 30 which can be operated by finger tips is formed so as to protrude upward from the elastic deformation part.SELECTED DRAWING: Figure 1

Description

The present invention relates to a discharge cap.

Conventionally, as described in Patent Document 1, for example, an eclipse tubular cap body which is attached to the mouth of a container body in which the contents are housed and has a discharge nozzle for discharging the contents and an elastic crushing part is provided. A synthetic resin discharge cap is known. The elastic crushing portion is formed in a ridged cylinder shape that can be pressed downward, and functions as a button portion that can be pressed down.
With this discharge cap, the internal pressure of the container body can be increased by pressing the elastic crushed portion and pushing it toward the container body side. This makes it possible to discharge the contents through the discharge nozzle.

Jitsukaihei 7-44730 Gazette

However, the conventional discharge cap is often made of synthetic resin integrally formed by injection molding, and the elastic crushed portion is easily formed hard. Therefore, it is difficult to push down the elastic crushed portion, and there is room for improvement in operability.
When the discharge cap is formed of two parts so that the elastic crushed portion is formed of a soft material such as an elastomer, it is possible to improve the pressing operability of the elastic crushed portion. .. However, in this case, another problem arises that the manufacturing cost is high.

The present invention has been made in view of such circumstances, and an object of the present invention is to provide a discharge cap having excellent operability.

(1) The discharge cap according to the present invention is connected to a mounting cylinder portion mounted on the mouth portion of the container body in which the contents are housed and an upper end portion of the mounting cylinder portion, and the mouth portion of the container body is connected. It is provided with a closed portion in which a discharge port for discharging the contents is formed while being closed, and the closed portion is elastically deformable downward and elastically deforms to increase the internal pressure of the container body. A deformed portion is formed, and the elastically deformed portion is characterized in that an operation protrusion that can be operated with a fingertip is formed so as to project upward from the elastically deformed portion.

According to the discharge cap according to the present invention, an operation protrusion that can be operated with a fingertip is formed in the elastically deformed portion of the closed portion that closes the mouth portion of the container body. It can be tilted so that it can be tilted, or it can be pushed downward along the cap axis. As a result, the elastically deformed portion can be elastically deformed downward by using the operation protrusion, and the internal pressure of the container body can be increased. Therefore, the contents in the container body can be discharged to the outside through the discharge port.
Then, when the operation of the operation protrusion is released after the contents are discharged, the elastically deformed portion returns to the original state by the elastic restoration deformation, and the operation protrusion also returns to the original state accordingly. This makes it possible to prepare for the next discharge operation.

In particular, since the operating protrusion is formed so as to protrude upward from the elastically deformed portion, for example, when tilting the operating protrusion, an external force is applied to the upper end of the operating protrusion to make the operating protrusion elastic. The operation protrusion can be largely displaced with the base end portion, which is the connection portion with the deformable portion, as a fulcrum, and the elastically deformed portion can be efficiently elastically deformed downward. Therefore, a pushing force larger than the operating force for actually tilting the operating protrusion can be applied to the elastically deformed portion, and the elastically deformed portion can be efficiently elastically deformed downward.

Further, even when the operating protrusion is pushed in, the pushing force can be intensively applied to the elastically deformed portion via the base end portion which is the connecting portion between the operating protrusion and the elastically deformed portion. Therefore, a pushing force larger than the pushing force that actually pushes the operation protrusion can be applied to the elastically deformed portion, and the elastically deformed portion can be elastically deformed downward.
From these facts, by using the operation protrusion, the elastically deformed portion can be pushed down without requiring a large pushing force, and an easy-to-use discharge cap having excellent operability can be obtained.

(2) The elastically deformed portion is formed in a hemispherical shape bulging upward in a vertical cross-sectional view of the container body, and the operating protrusion is formed on the uppermost portion of the elastically deformed portion. The discharge port may be formed at a portion of the elastically deformed portion that is located outside the container body in the radial direction from the top of the elastically deformed portion when viewed from the cap axis direction.

In this case, since the operation protrusion is formed on the top of the elastically deformed portion, the elastically deformed portion is more efficiently directed downward regardless of whether the operation protrusion is tilted or pushed. Can be elastically deformed. Therefore, the internal pressure of the container body can be efficiently increased, and the contents can be discharged more smoothly.
Further, since the operation protrusion is formed on the top of the elastically deformed portion, the operation protrusion can be easily tilted in any direction of front, back, left and right, and the operability can be improved. Moreover, regardless of which direction the operation protrusion is tilted, the amount of deformation of the elastically deformed portion can be made the same, and the same contents can be discharged. Therefore, it is possible to stably discharge the same contents without being affected by the direction of operation of the operation protrusion.

(3) The elastically deformed portion may be formed with a wall thickness adjusting portion that partially changes the wall thickness of the elastically deformed portion.

In this case, the elastically deformed portion does not have a uniform wall thickness over the entire surface, and the wall thickness is partially changed by the wall thickness adjusting portion. It can be divided into a range that is easily elastically deformed and a range that is difficult to be elastically deformed. As a result, the discharge amount of the contents can be changed according to the operation of the operation protrusion, and it is possible to use it in various ways according to the situation.

According to the present invention, a discharge cap having excellent operability can be obtained.

It is a vertical sectional view which shows the embodiment of the discharge cap which concerns on this invention. It is a top view of the discharge cap from the state shown in FIG. 1 in the state where the cover cap is opened. FIG. 2 is a vertical cross-sectional view of the discharge cap along the line AA. It is a perspective view of the discharge cap (excluding the cover cap) shown in FIG. It is a vertical cross-sectional view of a discharge cap which shows the state which the contents are discharged by tilting the operation protrusion backward. It is a vertical cross-sectional view of a discharge cap which shows the state which the contents are discharged by tilting the operation protrusion forward. It is a vertical cross-sectional view of a discharge cap which shows the state which the contents are discharged by pushing operation the operation protrusion. It is a vertical sectional view which shows the modification of the discharge cap which concerns on this invention. It is a top view of the discharge cap from the state shown in FIG. 8 in the state where the cover cap is opened.

Hereinafter, embodiments of the discharge cap according to the present invention will be described with reference to the drawings.
As shown in FIGS. 1 to 3, the discharge cap 1 of the present embodiment is a cap used in a state of being attached to the mouth portion 3 of the container body 2 in which the contents are housed.
The container body 2 is not particularly limited, and examples thereof include a glass bottle and a synthetic resin bottle. For example, a first screw portion 4 is formed on the outer peripheral surface of the mouth portion 3 of the container body 2.

The discharge cap 1 includes a cap main body 10 that covers the mouth portion 3 of the container main body 2, and a ridged tubular cover cap 11 that covers the closing portion 21 described later in the cap main body 10.
The discharge cap 1 is a molded part in which the cap body 10 and the cover cap 11 are integrally formed by being molded from a synthetic resin material such as PE (polyethylene) or PP (polypropylene).

In FIG. 1, the central axes of the mouth portion 3, the cap main body 10 and the cover cap 11 of the container main body 2 are arranged on a common axis. Hereinafter, this common shaft is referred to as a cap shaft O, the cover cap 11 side along the cap shaft O is referred to as an upper side, and the container body 2 side opposite to the cap shaft O is referred to as a lower side. Further, in a plan view seen from the cap axis O direction, the direction intersecting the cap axis O is referred to as the radial direction, and the direction rotating around the cap axis O is referred to as the circumferential direction.
Further, of the radial directions, the two directions orthogonal to each other are called the front-rear direction L1 and the left-right direction L2. One direction along the front-rear direction L1 is called the front, and the opposite direction is called the rear.

A removable inner plug cap (not shown) that seals the inside of the container body 2 may be attached to the mouth portion 3 of the container body 2. In this case, the inner plug cap is attached, for example, at the time of product shipment, and is removed from the mouth portion 3 when the discharge cap 1 is used.
Further, a peelable sealing material (not shown) that seals the inside of the container body 2 may be attached to the mouth portion 3 of the container body 2. Also in this case, the sealing material is attached, for example, at the time of product shipment, and is removed from the mouth portion 3 when the discharge cap 1 is used.

As shown in FIGS. 1 to 4, the cap body 10 is connected to the mounting cylinder portion 20 mounted on the mouth portion 3 of the container body 2 and the upper end portion of the mounting cylinder portion 20, and is connected to the mouth portion of the container body 2. It is formed in the shape of an eclipse cylinder provided with a closing portion 21 that covers and closes the 3.
A second screw portion 22 screwed to the first screw portion 4 formed in the mouth portion 3 of the container body 2 is formed on the inner peripheral surface of the mounting cylinder portion 20. As a result, the cap body 10 is attached to the mouth portion 3 of the container body 2 by screw coupling.
However, the present invention is not limited to this case, and for example, the mounting cylinder portion 20 of the cap body 10 may be mounted to the mouth portion 3 of the container body 2 by undercut fitting.

The closing portion 21 is connected to the upper end portion of the mounting cylinder portion 20 and is arranged from the annular flange wall 25 arranged on the upper end opening edge of the mouth portion 3 of the container body 2 and the inner peripheral edge portion of the flange wall 25. It includes a top wall (elastically deformed portion according to the present invention) 26 formed so as to bulge upward. As a result, the entire closed portion 21 is formed in the shape of a ridged cylinder protruding upward.

A stepped portion 25a recessed downward is formed on the outer peripheral edge portion of the flange wall 25 over the entire circumference. The top wall 26 is formed so as to bulge upward in a dome shape (hemispherical shape) in the vertical cross-sectional view of the container body 2, and the outer peripheral edge portion covers the entire circumference of the inner peripheral edge portion of the flange wall 25. It is installed continuously. The top wall 26 is elastically deformable downward, and the internal pressure of the container body 2 can be increased by the elastic deformation.

Since the top wall 26 bulges upward in a dome shape as described above, the top 26a located on the cap shaft O is located at the uppermost position. The top wall 26 of the present embodiment is formed to have the thinnest wall thickness in the cap body 10, and in the illustrated example, the top wall 26 is formed to have a uniform wall thickness throughout. As a result, the top wall 26 is configured to be easily elastically deformed. Specifically, the top wall 26 is elastically deformable so that a part thereof is partially elastically deformed or the entire top wall 26 is elastically deformed downward.

On the top wall 26 configured as described above, a discharge port 27 for discharging the contents is formed, and an operation protrusion 30 that can be operated with a fingertip is formed.
The discharge port 27 is formed in a portion of the top wall 26 facing the front side so as to penetrate the top wall 26 in the front-rear direction L1. Further, in the present embodiment, the discharge nozzle 28 is integrally formed with the top wall 26 so as to surround the discharge port 27. The discharge nozzle 28 is formed in a straight shape extending diagonally upward from the top wall 26 toward the front. The inside of the discharge nozzle 28 is a discharge path 29 that communicates with the discharge port 27 and opens forward. As a result, the contents in the container main body 2 can be discharged to the outside through the discharge port 27 and the discharge path 29.
The discharge nozzle 28 has a length such that the tip portion does not protrude outward in the radial direction from the mounting cylinder portion 20.

The operation protrusion 30 is integrally formed with the top portion 26a of the top wall 26.
The operation protrusion 30 includes an operation shaft portion 31 formed so as to project upward from the top portion 26a, and an operation piece 32 integrally formed at the upper end portion of the operation shaft portion 31. The operation shaft portion 31 is formed in a solid columnar shape and is arranged coaxially with the cap shaft O.
Further, the base portion of the operation protrusion 30 provided on the top portion 26a, that is, the lower end portion of the operation shaft portion 31, forms a thick portion (on a curved surface) protruding below the top wall 26 in consideration of moldability. is doing. The operation shaft portion 31 is not limited to the solid case, and may be formed in a hollow columnar shape, for example.

The operation piece 32 includes a front operation piece 33 that swells in an arc shape toward the front and a rear operation piece 34 that swells in an arc shape toward the rear in a plan view seen from the O direction of the cap axis. It is formed longer in the left-right direction L2 than in the direction L1 and is formed in the shape of a plate having a predetermined thickness.

As shown in FIG. 2, the front operation piece 33 is arranged on the front side of the cap axis O, and is formed so as to bulge forward in a predetermined radius of curvature in a plan view when viewed from the cap axis O direction. Has been done. As shown in FIG. 1, the front end edge of the front operation piece 33 is formed in a hemispherical shape in a vertical cross-sectional view so as to be rounded.
As shown in FIG. 2, the rear operation piece 34 is arranged on the rear side of the cap axis O, and is directed to the rear with a radius of curvature smaller than the radius of curvature of the front operation piece 33 in a plan view from the direction of the cap axis O. It is formed so as to bulge in an arc shape. As shown in FIG. 1, the rear end edge of the rear operation piece 34 is formed in a hemispherical shape in a vertical cross-sectional view so as to be rounded like the front operation piece 33.

As shown in FIG. 2, the lateral width of the rear operation piece 34 along the left-right direction L2 is the same as the lateral width of the front operation piece 33 along the left-right direction L2, and the length of the rear operation piece 34 along the front-rear direction L1. The halfbeak is formed longer than the length along the front-rear direction L1 of the front operation piece 33. As a result, the entire operation piece 32 is formed longer in the left-right direction L2 than in the front-rear direction L1.

The operation protrusion 30 configured as described above can be operated with the fingertip while placing the abdomen of the fingertip (for example, the thumb) on the upper surface of the operation piece 32, for example. Specifically, it is possible to tilt the operation protrusion 30 so as to tilt it in the front-rear direction L1 and the left-right direction L2 with a fingertip, or to perform a pushing operation such as pushing the operation protrusion 30 downward. ..
In particular, the upper surface of the operation piece 32 is curved so as to gently descend from the front to the rear as shown in FIG. 1, and is gently curved from the central portion toward the outside of L2 in the left-right direction as shown in FIG. It is curved so that it goes down. Therefore, it is designed so that the fingertip can be easily fitted to the upper surface of the operation piece 32, and the operation protrusion 30 can be easily tilted in both the front-rear direction L1 and the left-right direction L2.

Then, by tilting or pushing the operation protrusion 30, an external force can be applied to the top wall 26 through the operation protrusion 30, and the top wall 26 can be elastically deformed downward. There is. At this time, according to the operation of the operation protrusion 30, it is possible to partially elastically deform a predetermined range (region) of the top wall 26, or elastically deform the entire surface so as to reverse and deform downward. Has been done.
In particular, since the discharge port 27 is located on the front side (outside in the radial direction) of the top 26a on which the operation protrusion 30 is formed when viewed from the cap axis O direction, the operation protrusion 30 is located on the discharge port 27 side. It is possible to change the range of elastic deformation of the top wall 26 depending on whether the operation protrusion 30 is tilted forward so as to approach the discharge port 27 or tilted backward so as to be separated from the discharge port 27. Has been done.

As shown in FIGS. 1 to 3, the cover cap 11 extends downward from the cap top wall 40 arranged above the operation protrusion 30 and the outer peripheral edge portion of the cap top wall 40, and the lower end portion thereof extends downward. It is formed in the shape of an eclipsed cylinder provided with a cap peripheral wall 41 that is in contact with the stepped portion 25a of the cap body 10 from above. As a result, the cover cap 11 covers the entire closing portion 21 and the operating protrusion 30.

The cover cap 11 is connected to the cap body 10 via the hinge portion 42, and the discharge nozzle 28 can be opened and closed by rotation around the hinge portion 42. The hinge portion 42 connects the upper end portion of the mounting cylinder portion 20 in the cap body 10 and the lower end portion of the cap peripheral wall 41, and the hinge shaft M extends in the front-rear direction L1. Therefore, the hinge portion 42 is arranged so that the hinge axis M is orthogonal to the left-right direction L2 in a plan view seen from the cap axis O direction.
A bulging portion 43 that closes the front opening of the discharge nozzle 28 when the cover cap 11 is closed is formed inside the cap peripheral wall 41.

(Action of discharge cap)
Next, a case where the contents are discharged by using the discharge cap 1 configured as described above will be described.
In this case, by rotating the cover cap 11 around the hinge axis M from the state shown in FIG. 1, the cover cap 11 is opened as shown in FIG. As a result, the bulging portion 43 can be separated from the ejection nozzle 28 to open the front opening of the ejection nozzle 28.

After opening the cover cap 11, for example, the container body 2 is grasped, and the operation protrusion 30 is operated with a fingertip while tilting the container body 2 forward. For example, as shown in FIG. 5, as shown by the arrow F1, the operation protrusion 30 is tilted so as to be pulled backward with the fingertip, and the operation protrusion 30 is tilted with respect to the cap shaft O. As a result, the operation protrusion 30 can be used to elastically deform the portion of the top wall 26 located mainly behind the operation protrusion 30, and the internal pressure of the container body 2 can be increased. Therefore, the contents in the container main body 2 can be discharged to the outside through the discharge port 27 and the discharge path 29.

It should be noted that the internal pressure of the container body 2 can be increased by the pressure corresponding to the elastic deformation of the top wall 26 by one tilting operation of the operation protrusion 30. Therefore, it is possible to discharge the contents by a fixed discharge amount by one tilting operation. In the illustrated example, the contents are discharged in the form of droplets by a fixed discharge amount.

When the tilting operation of the operation protrusion 30 is released after the contents are discharged, the top wall 26 returns to the original state due to the elastic restoration deformation, and the operation protrusion 30 also returns to the original state accordingly. Although the inside of the container body 2 becomes negative pressure due to the restoration deformation of the top wall 26, air can flow into the container body 2 through the discharge nozzle 28, so that the negative pressure inside the container body 2 can be eliminated. It is possible. Therefore, it is possible to prepare for the next discharge operation.

In particular, when the operation protrusion 30 is tilted, an external force is applied to the operation piece 32 to enlarge the operation protrusion 30 with the base end portion of the operation shaft portion 31, which is the connection portion between the operation protrusion 30 and the top wall 26, as a fulcrum. It can be displaced and the top wall 26 can be efficiently elastically deformed. Therefore, a pushing force larger than the operating force for actually tilting the operating protrusion 30 can be applied to the top wall 26. Therefore, the top wall 26 can be pushed down without requiring a large pushing force, and the easy-to-use discharge cap 1 having excellent operability can be obtained.

Therefore, according to the discharge cap 1 of the present embodiment, the operation protrusion 30 can be operated without requiring a large pushing force, and the discharge cap 1 having excellent operability and being easy to use can be obtained.

It should be noted that the operation of the operation protrusion 30 is not limited to the case where the operation protrusion 30 is tilted so as to be pulled backward with a fingertip as shown in FIG. 5, for example, the operation protrusion 30 is tilted in the left-right direction L2. Alternatively, as shown in FIG. 6, the operation protrusion 30 may be tilted so as to be pushed forward as shown by the arrow F2. In any case, the top wall 26 can be elastically deformed by the tilting operation of the operation protrusion 30, and the contents can be discharged.

In particular, since the operation protrusion 30 is formed on the top 26a of the top wall 26, the operation protrusion 30 can be easily tilted in any direction of front, back, left and right, and operability can be improved. Further, since the operation protrusion 30 is formed on the top portion 26a, the top wall 62 can be deformed to the same extent regardless of the direction in which the operation protrusion 30 is tilted, and the same content is discharged. be able to. Therefore, it is possible to stably discharge the same contents without being affected by the direction of operation of the operation protrusion 30.

Further, when discharging the contents, the operation protrusion 30 is not limited to the case of tilting operation, and for example, as shown in FIG. 7, the operation protrusion 30 is pushed downward along the cap shaft O as shown by the arrow F3. You can also operate it.
Even in this case, the pushing force can be intensively applied to the top wall 26 via the base end portion of the operation shaft portion 31, which is the connecting portion between the operation protrusion 30 and the top wall 26. Therefore, a pushing force larger than the pushing force that actually pushes the operation protrusion 30 can be applied to the top wall 26, and the top wall 26 can be elastically deformed so as to be inverted and deformed.

Even in this case, it is possible to discharge the same contents as in the case of tilting the operation protrusion 30. However, when the operation protrusion 30 is pushed in, the top wall 26 can be vigorously inverted, so that it is easy to vigorously discharge the contents by utilizing the reaction at that time. Therefore, the contents can be discharged more smoothly.

Further, since the discharge cap 1 of the present embodiment includes the cover cap 11, it is possible to prevent erroneous operation of the operation protrusion 30. Moreover, since the hinge axis M of the hinge portion 42 is orthogonal to the left-right direction L2 when viewed from the cap axis O direction, the cover is covered at a position that does not interfere with the operation of the operation protrusion 30 when the cover cap 11 is opened. The cap 11 can be positioned. Therefore, the operation protrusion 30 can be operated without worrying about the cover cap 11, and good operability can be provided.

Although the embodiments of the present invention have been described above, the present embodiments are presented as examples, and the scope of the invention is not intended to be limited. This embodiment can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the gist of the invention, and in addition, in each embodiment. Modification examples may be combined as appropriate. Further, the present embodiment and examples thereof include, for example, those easily assumed by those skilled in the art, those substantially the same, those having an equal range, and the like.

For example, in the above embodiment, the operation protrusion 30 is configured by the operation shaft portion 31 and the operation piece 32, but the shape of the operation protrusion 30 is not limited to this case as long as it can be operated with a fingertip.
For example, as in the discharge cap 50 shown in FIG. 8, the operation protrusion 51 may be formed so as to extend straight upward from the top 26a of the top wall 26. In the illustrated example, the operation protrusion 51 is formed in a solid columnar shape, and is formed so as to gradually increase in diameter from the lower side to the upper side. As a result, the area of the upper end surface of the operation protrusion 51 can be secured, and the operation protrusion 51 can be stably operated by using the fingertip.

Further, in the above embodiment, the wall thickness of the top wall 26 is formed to be a uniform thin wall over the entire surface, but the wall thickness is not limited to this case, and the wall thickness may be partially changed.
For example, in the discharge cap 50 shown in FIGS. 8 and 9, an elastically deformable beam portion (thickness adjusting portion according to the present invention) 52 formed in a strip shape with a predetermined thickness and width on the inner peripheral surface of the top wall 26. Is provided. The beam portion 52 may be integrally formed on the inner peripheral surface of the top wall 26, for example, or may be formed separately from the top wall 26 and fixed by sticking or the like.

Further, the beam portions 52 are arranged on the front side of the top wall 26, and are provided in pairs so as to sandwich the discharge nozzle 28 from the circumferential direction. Each of the pair of beam portions 52 is formed so as to extend radially outward from the top portion 26a along the inner peripheral surface of the top wall 26.

Since the beam portion 52 is provided as described above, the portion of the top wall 26 that overlaps with the beam portion 52 is formed to be thicker than the other portions by utilizing the thickness of the beam portion 52. As a result, the wall thickness on the front side of the top wall 26 can be changed so as to be partially thick.
Therefore, the beam portion 52 can be used to divide the top wall 26 into a range in which elastic deformation is difficult and a range in which elastic deformation is likely to occur. In the illustrated example, the range of the top wall 26 located on the front side of the operating protrusion 51 can be set to be a range that is not easily elastically deformed, and the range located on the rear side of the operating protrusion 51 is easily elastically deformed. Can be a range.

As a result, the top wall 26 can be more effectively elastically deformed by tilting the operating protrusion 51 backward as compared with the case where the operating protrusion 51 is tilted forward. Therefore, it is possible to discharge a larger amount of the contents in the case of tilting the operation projection 51 toward the rear than in the case of tilting the operation protrusion 51 toward the front.
In this way, by changing the wall thickness of the top wall 20, it is possible to change the discharge amount of the contents according to the operation direction of the operation protrusion 51, and it is possible to perform various uses according to the situation. ..

In FIGS. 8 and 9, the case where the beam portion 52 is used has been described as an example, but the present invention is not limited to this case, and for example, the wall thickness of the top wall 26 itself is partially thickened. The wall thickness may be partially changed by such means. Furthermore, the wall thickness is not limited to the case of thickening, and the wall thickness may be changed by partially forming the top wall 26 to be thin.

Further, in the above embodiment, the top wall 26 is formed so as to bulge upward in a dome shape, but it does not necessarily have to bulge upward, and if it is elastically deformable downward, it is formed flat, for example. It doesn't matter if you do. In this case, the operating protrusion may be formed at any position on the top wall.
However, it is preferable to form the top wall 26 so as to bulge upward because it can be effectively elastically deformed by the operation of the operation protrusion.

Further, in the above embodiment, the cover cap 11 is connected to the cap body 10 via the hinge portion 42, but the present invention is not limited to this case. For example, the hinge portion 42 may be omitted, and the cover cap 11 may be detachably attached to the cap body 10.

O ... Cap shaft 1, 50 ... Discharge cap 2 ... Container body 3 ... Container body mouth 20 ... Mounting cylinder 21 ... Closing part 26 ... Top wall (elastic deformation part)
26a ... Top of the top wall 27 ... Discharge ports 30, 51 ... Operation protrusions 52 ... Beam part (wall thickness adjustment part)

Claims (3)

A mounting cylinder that is attached to the mouth of the container that houses the contents,
It is provided with a closed portion which is connected to the upper end portion of the mounting cylinder portion and closes the mouth portion of the container body and has a discharge port for discharging the contents.
An elastically deformable portion is formed in the closed portion so that it can be elastically deformed downward and the internal pressure of the container body is increased by the elastic deformation.
The discharge cap is characterized in that an operation protrusion that can be operated with a fingertip is formed on the elastically deformed portion so as to project upward from the elastically deformed portion. In the discharge cap according to claim 1,
The elastically deformed portion is formed in a hemispherical shape that bulges upward in the vertical cross-sectional view of the container body.
The operating protrusion is formed on the uppermost portion of the elastically deformed portion, which is located at the uppermost position.
The discharge port is a discharge cap formed in a portion of the elastically deformed portion that is located outside the top of the container body in the radial direction when viewed from the direction of the cap axis. In the discharge cap according to claim 1 or 2.
A discharge cap in which a wall thickness adjusting portion for partially changing the wall thickness of the elastically deformed portion is formed in the elastically deformed portion.

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