JP5544189B2 - Pouring cap - Google Patents

Description

  The present invention relates to a dispensing cap.

The dispensing cap generally includes an inner plug member that is attached to the mouth portion of the container body and has an outlet port, and an overcap member that covers the outlet port of the inner plug member so as to be openable and closable. And the obstruction body which obstruct | occludes a spout is connected to the inside plug member through the easy fracture | rupture part.
Conventionally, the overcap has a cylindrical body projecting downward, and a first engagement portion projects from the cylindrical body toward the radially inner side of the dispensing cap. As the body, there has been proposed a dispensing cap in which a second engaging portion that is inserted into a cylindrical body and is engaged with the first engaging portion from one side in the circumferential direction of the cap is erected (for example, a patent). Reference 1).
In such a pouring cap, when the overcap member is rotated to one side in the cap circumferential direction with respect to the inner plug member, the first engagement portion engages with the second engagement portion, thereby easily breaking the portion. Is broken and opened by the shearing force in the circumferential direction of the cap.

Japanese Utility Model Publication No. 56-40687

However, even in such a pouring cap, it is required to facilitate a structure that can remove the closing body simultaneously with opening.
An object of the present invention is to provide a pouring cap that can remove an obstruction simultaneously with opening without complicating the structure.

The present invention employs the following means in order to solve the above problems. That is, the pouring cap of the present invention includes an inner plug member that is attached to the mouth portion of the container body and has a pouring port formed therein, and an overcap member that covers the pouring port so as to be openable and closable. The member is a pouring cap in which a closing body that closes the spout is connected via an easily breaking portion, and a first engaging portion is erected on the closing body, and the overcap The member includes a second engagement portion that engages with the first engagement portion from below , a sandwiching portion that sandwiches the first engagement portion in the radial direction between the second engagement portion, and Is provided.

  In this invention, since both the overcap member and the closing member move in the direction of separating from the mouth portion, the spout can be opened simultaneously with the removal of the overcap member from the mouth portion. That is, when the overcap member is moved away from the mouth portion, the second engaging portion is engaged with the first engaging portion from the lower side. Try to move. Then, the force for moving the overcap member in the disengagement direction is transmitted to the easy breaking portion via the first and second engaging portions and the closing body, and the easy breaking portion is broken. Thereby, the spout is opened. Thereafter, the closure body is detached from the mouth together with the overcap member. Therefore, it is possible to facilitate the configuration in which the closing body is removed simultaneously with opening.

In the pouring cap of the present invention, the second engaging portion protrudes downward from the support portion, and between the front end of the first engaging portion and the support portion, and the closure It is preferable that a gap is formed in at least one of the body and the tip of the second engaging portion.
In the present invention, since the gap is formed, even if an external force is applied to the overcap member, the external force is not easily transmitted to the closing body. For example, when the pouring cap is attached to the mouth portion or the pouring cap is attached. It is possible to prevent the spout from being inadvertently opened before opening, such as when the container body is conveyed.

  According to the pouring cap according to the present invention, both the overcap member and the closing body move in the direction of detachment from the mouth, and the spout is opened in accordance with the operation of detaching the overcap member from the mouth. Therefore, it is possible to facilitate the configuration in which the closing body is removed simultaneously with the opening of the overcap member.

It is an axial direction sectional view showing the extraction cap in the 1st embodiment of the present invention. It is an exploded view which shows the extraction | pouring cap of FIG. It is an axial sectional view which shows the opening state of the extraction | pouring cap of FIG. It is axial direction sectional drawing which shows the extraction | pouring cap in the 2nd Embodiment of this invention. It is the elements on larger scale which show the extraction | pouring cap of FIG. It is an axial sectional view showing the opened state of the extraction cap of FIG.

  Hereinafter, a first embodiment of a dispensing cap according to the present invention will be described with reference to the drawings. In each drawing used in the following description, the scale is appropriately changed to make each member a recognizable size.

As shown in FIG. 1, the dispensing cap 1 according to the present embodiment is attached to the mouth 3 of a bottomed cylindrical container body 2 that contains, for example, liquid contents.
In the illustrated example, the mouth portion 3 and the dispensing cap 1 of the container body 2 are arranged in a state in which the respective central axes are located on a common axis. Hereinafter, this common axis is referred to as a cap axis O, the side of the dispensing cap 1 along the cap axis O is referred to as the upper side, the container body 2 side is referred to as the lower side, and the direction orthogonal to the cap axis O is referred to as the radial direction.

First, the configuration of the container body 2 to which the dispensing cap 1 is attached will be described. As shown in FIGS. 2 and 3, the mouth portion 3 of the container body 2 has a cylindrical shape, is disposed on the upper side of the lower portion 11 and the lower portion 11, and has an outer diameter on the lower side. An upper portion 12 having a smaller diameter than the portion 11, and a connecting portion 13 that connects the lower portion 11 and the upper portion 12 and decreases in diameter as the outer diameter increases upward are provided.
The outer peripheral surface of the lower portion 11 is provided with a male screw portion 11A and a space spaced below the male screw portion 11A so as to project radially outward and extend over the entire circumference of the outer peripheral surface. An annular convex portion 11B is formed. In addition, a step 14 that protrudes radially outward is formed at the lower end of the lower portion 11.
An annular flange portion 12 </ b> A is formed on the outer peripheral surface of the upper portion 12 so as to project outward in the radial direction and extend over the entire periphery of the outer peripheral surface. Further, the upper end of the upper portion 12 bulges outward in the radial direction.

  Next, the configuration of the dispensing cap 1 will be described. As shown in FIGS. 1 to 3, the dispensing cap 1 includes an inner plug member 21 that is attached to the mouth portion 3, and an overcap member that is detachably screwed to the mouth portion 3 and covers the inner stopper member 21. 22.

The inner plug member 21 includes a peripheral wall portion 31, an inner wall portion 32, an extraction tube portion 33, and a closing body portion (closing body) 34.
The peripheral wall portion 31 has a cylindrical shape, and the inner diameter is substantially equal to the outer diameter of the upper portion 12. And the lower end of the surrounding wall part 31 protrudes toward radial inside so that the upper part 12 may be engaged.
The inner wall portion 32 has a cylindrical shape, is disposed radially inward of the peripheral wall portion 31, and has an outer diameter substantially equal to the inner diameter of the upper portion 12. The inner wall portion 32 causes the inner plug member 21 to be attached to the upper portion 12 of the mouth portion 3 in a state where the upper portion 12 is sandwiched together with the peripheral wall portion 31.

The extraction cylinder part 33 protrudes on the upper side in the radial direction from the peripheral wall part 31 and the inner wall part 32, and the diameter of the upper part increases radially outward as it goes upward. In addition, a spout 33A for pouring the contents accommodated in the container body 2 out of the container body 2 is formed at the lower end of the dispensing cylinder portion 33.
The closing body portion 34 closes the spout 33A, and includes a closing plate portion 35 having a circular plate shape in plan view, and an engagement cylinder portion (first engagement portion) erected on the upper surface of the closing plate portion 35. 36). The outer peripheral edge of the closing plate portion 35 is connected to the lower end of the dispensing cylinder portion 33 via an easy break portion 37 that is formed over the entire circumference of the closing plate portion 35 and is thinner than the closing plate portion 35. The upper end of the engagement cylinder part 36 protrudes outward in the radial direction over the entire circumference of the engagement cylinder part 36.
The upper end of these peripheral wall parts 31, the upper end of the inner wall part 32, and the lower end of the extraction | pouring cylinder part 33 are connected by the annular connection part 38 which makes an annular | circular shape by planar view.

The overcap member 22 is detachably screwed into the mouth portion 3, and includes an outer cap member 41 and an inner cap member 42 disposed inside the outer cap member 41. At this time, the inner cap member 42 is integrated with and integrated with the outer cap member 41 at least in the vertical direction.
The outer cap member 41 has a top cylindrical shape, and includes an upper plate portion 43, an upper step portion 44, a lower step portion 45, and a pill proof portion connected in order from the outer peripheral edge of the top plate portion 43 to the lower side. 46.

The top plate portion 43 is provided with a protruding cylindrical portion 47 that protrudes downward. The lower end of the protruding cylindrical portion 47 protrudes radially inward over the entire circumference of the protruding cylindrical portion 47.
On the inner peripheral surface of the lower step portion 45, a female screw portion 45A that is screwed with the male screw portion 11A of the mouth portion 3 is formed.
The pill fuffproof portion 46 is connected to the lower end of the lower step portion 45 via a plurality of bridge portions 48 whose upper ends are arranged at intervals in the circumferential direction. Further, as shown in FIGS. 1 and 2, a plurality of folded portions 49 that are folded back inward in the radial direction are formed on the lower side of the pill fuffproof portion 46 at intervals in the circumferential direction. As shown in FIGS. 1 and 3, the pill proof portion 46 is configured so that the tip of the folded portion 49 is brought into contact with the annular convex portion 11 </ b> B in a state where the overcap member 22 is attached to the mouth portion 3. The vertical movement of 22 is restricted.

  The inner cap member 42 connects the outer cylinder part 51, the inner cylinder part (second engagement part) 52 disposed radially inward of the outer cylinder part 51, and the outer cylinder part 51 and the inner cylinder part 52. And an annular plate portion 53 and a support plate portion (support portion) 54.

  The inner cylinder portion 52 has a cylindrical shape, and has an outer diameter substantially equal to the inner diameter of the extraction cylinder portion 33 and an inner diameter substantially equal to the outer diameter of the engagement cylinder portion 36. Further, the lower end of the inner cylinder portion 52 protrudes radially inward over the entire circumference of the inner cylinder portion 52 and engages with the upper end protruding from the lower side toward the radially outer side of the engagement cylinder portion 36. ing. Thereby, the inner cylinder part 52 restrict | limits the movement with respect to the inner cylinder part 52 of the engagement cylinder part 36 in an up-down direction.

The annular plate portion 53 has an annular shape in plan view, and connects the upper end of the outer cylinder portion 51 and the upper end of the inner cylinder portion 52. The annular plate portion 53 has an outer peripheral edge that protrudes radially outward from the outer tube portion 51, and is engaged with the protruding tube portion 47. Further, the upper surface of the annular plate portion 53 comes into contact with the lower surface of the top plate portion 43 when the inner cap member 42 is attached to the outer cap member 41.
The support plate portion 54 has a circular shape in plan view, and is connected to the inner peripheral surface of the lower portion of the inner cylinder portion 52 and the entire circumference of the support plate portion 54 and supported by the inner cylinder portion 52. And the inner cylinder part 52 is protrudingly provided below the support plate part 54. As shown in FIG. Further, on the lower surface of the support plate portion 54, a sandwiching tube portion 55 that sandwiches the engagement tube portion 36 together with the inner tube portion 52 is provided so as to protrude downward.

Next, an opening method using the dispensing cap 1 having the above configuration will be described.
First, the overcap member 22 is rotated with respect to the mouth 3 of the container body 2. Since the female screw portion 45A of the overcap member 22 is screwed into the male screw portion 11A of the mouth portion 3, as the overcap member 22 is rotated with respect to the mouth portion 3, the overcap member 22 Try to move upward. However, since the pill fuffproof portion 46 restricts the upward movement, the force that the overcap member 22 attempts to move upward with respect to the mouth portion 3 breaks the bridge portion 48 and the overcap member 22 Of these, the part excluding the pill fuffproof part 46 moves upward with respect to the mouth part 3.

Then, as the overcap member 22 moves upward with respect to the mouth portion 3 while rotating in the circumferential direction, the closing body portion 34 is pulled up together with the inner cap member 42. In this way, the easy breakage portion 37 connecting the closure body portion 34 and the dispensing cylinder portion 33 is broken by the force for lifting the closure body portion 34 upward.
Thereafter, as shown in FIG. 3, the closing body 34 is pulled upward together with the inner cap member 42 to open the spout 33 </ b> A. Then, the overcap member 22 is screwed out from the mouth portion 3 together with the closing body portion 34.
As described above, the overcap member 22 is opened and the spout 33A is opened. After opening the spout 33A, for example, by tilting the container body 2 to which the inner plug member 21 is attached, the contents are poured out from the open end of the spout cylinder 33 through the spout 33A.

  According to the pouring cap 1 configured as described above, the closing body portion 34 moves upward with respect to the mouth portion 3 together with the inner cap member 42, and is accompanied by an operation of screwing the overcap member 22 from the mouth portion 3. Since the spout 33A is opened, the structure in which the closing body 34 is removed simultaneously with the opening of the overcap member 22 can be facilitated. Further, since the closing body 34 is engaged with the inner cap member 42 when the spout 33A is opened, the contents can be poured out without having to remove the closing body 34 after opening the spout 33A. .

  Next, a second embodiment of the dispensing cap according to the present invention will be described based on the drawings. The embodiment described here has the same basic configuration as the first embodiment described above, and is obtained by adding another element to the first embodiment described above. Accordingly, in FIGS. 4 to 6, the same components as those in FIGS. 1 to 3 are denoted by the same reference numerals, and the description thereof is omitted.

  In the dispensing cap 100 according to the second embodiment, as shown in FIGS. 4 to 6, the closing body portion 102 constituting the inner plug member 101 is vertically oriented with respect to the inner cap member 106 constituting the overcap member 103. It is possible to move by a predetermined distance. That is, in the engaged state between the inner cylinder portion 107 and the engagement cylinder portion 104, the upper surface of the closing plate portion 105 that is the proximal end of the engagement cylinder portion 104 in the closing body portion 102 and the inner cylinder portion 107 in the inner cap member 106. A gap is formed between the upper end, which is the tip of the engagement cylinder portion 104 of the closing body portion 102, and the lower surface of the support plate portion 108.

The engagement cylinder part 104 is longer in the vertical direction than the engagement cylinder part 36 in the first embodiment.
The lower end of the inner cylinder part 107 is located above the lower end of the outer cylinder part 51. And the support plate part 108 is connected to the upper side in the inner cylinder part 107 rather than the support plate part 54 in 1st Embodiment.
Therefore, in this embodiment, the upper surface of the closing plate portion 105 and the lower end of the inner cylinder portion 107 are not in contact, and the upper end of the first engagement tube portion 104 and the lower surface of the support plate portion 108 are in contact. Absent.

The dispensing cap 100 having the above-described configuration also provides the same operational effects as described above. However, by forming the gap as described above, for example, when the dispensing cap 100 is attached to the mouth portion 3 or the dispensing is performed. Even when an external force is applied to the overcap member 103 before opening, such as when the container body 2 to which the cap 100 is attached is transported , the external force is not easily transmitted to the closing body portion 102. Can be prevented from breaking and opening the spout 33A.
Moreover, since the contact area between the closed body portion 102 and the inner cylinder portion 107 is reduced by forming the gap as described above, the friction between the closed body portion 102 and the inner cylinder portion 107 is reduced. It is possible to reduce the initial torque when the overcap member 103 is rotated with respect to the opening 3.

In addition, this invention is not limited to the said embodiment, A various change can be added in the range which does not deviate from the meaning of this invention.
For example, the engagement between the first engagement portion and the second engagement portion is performed by engaging the cylindrical engagement cylinder portion of the closing body portion and the cylindrical inner cylinder portion of the inner cap member. However, as long as the second engaging portion is engaged with the first engaging portion from the lower side, other configurations may be used.
In the above embodiment, the outer cap member and the inner cap member, and the inner cap member and the closing body portion are configured to be relatively rotatable (circumferential direction), but either one or both of them are engaged so as not to be relatively rotatable. May be. However, when the relative rotation is possible, there is an advantage that the opening torque is reduced.
The overcap member is detachably screwed into the mouth portion, but may be detachably attached to the mouth portion by other attachment methods such as detachably fitting to the mouth portion. In addition, the overcap member is screwed into the mouth portion, but can be attached to and detached from other members as long as the spout can be opened and closed, such as an inner plug member having a male threaded portion formed on the outer peripheral surface. It may be attached. Furthermore, although the overcap member has a configuration in which the inner cap member is attached to the inner side of the outer cap member, the overcap member may be formed as one member. However, when it is configured as a separate member, for example, the purpose of preventing damage to the easily broken portion, such as attaching an overcap member after the inner cap member and the inner cap member are attached to the container mouth, or a manufacturing apparatus There is an advantage that it can correspond to the assembly method according to.
The contents stored in the container are not limited to liquid.

  According to this invention, industrial applicability is recognized regarding the extraction cap which can remove a closure body simultaneously with opening without complicating a structure.

1,100 pouring cap, 2 container body, 3 mouth portion, 21,101 inner cap member, 22,103 overcap member, 33A spout, 34,102 closing body portion (closing body), 36,104 engagement cylinder Part (first engaging part), 37 easy breaking part, 52,107 inner cylinder part (second engaging part), 54,108 support plate part (supporting part)

Claims (2)

An inner plug member attached to the mouth of the container body and formed with a spout;
An overcap member that covers the spout so as to be freely opened and closed,
The inner plug member is a pouring cap in which a closing body that closes the pouring port is connected via an easy breaking portion,
A first engaging portion is erected on the closing body,
The overcap member is sandwiched between the second engagement portion that engages with the first engagement portion from below and the second engagement portion in the radial direction. pouring cap, characterized in that the parts, are provided. The second engagement portion protrudes downward from the support portion,
A gap is formed between at least one of the front end of the first engagement portion and the support portion and between the closure body and the front end of the second engagement portion. Item 10. The extraction cap according to item 1.

Images