JP2014046949A - Pouring cap - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pouring cap which prevents reduction in appearance quality, has an external cylinder having secure fitting force to a mouth of a container body, and also can be easily opened.SOLUTION: In the pouring cap which comprises: an external cylinder 11 which is externally fitted to a mouth 2 of a container body 1 that accommodates a content therein; and a pouring cylinder 13 which is arranged at an inner side in a radial direction of the external cylinder 11 and has a spout 12 formed therein for pouring the content in the container body 1 therefrom, a closing part 33 for closing the spout 12 is connected to the pouring cylinder 13 through a breakable weakened part 34. The external cylinder 11 is made of a material that is harder than a material that forms the pouring cylinder 13.

Description

  The present invention relates to a dispensing cap.

  Conventionally, an outer cylinder that is externally fitted to the mouth portion of the container body that contains the contents, and a spout for dispensing the contents of the container body are formed inside the outer cylinder in the radial direction. A pouring cap is known that includes a pouring tube and is connected to the pouring tube via a weakening portion that can break a closing portion that closes the pouring port (see Patent Document 1).

Utility Model Registration No. 2600481

  In the conventional pouring cap, the whole including the outer cylinder is made of a relatively soft material such as LDPE (low density polyethylene) so that the weakened portion can be easily broken and easily opened. Was formed. However, in this case, if the tightening margin of the outer cylinder with respect to the mouth of the container body is increased and the fitting force of the outer cylinder with respect to the mouth of the container body is sufficiently secured, the outer cylinder is externally fitted to the mouth of the container body. When this is done, the outer cylinder may be deformed in the radial direction and the appearance quality may deteriorate.

  The present invention has been made in view of such circumstances, and can ensure the fitting force of the outer cylinder to the mouth portion of the container body while preventing deterioration of the appearance quality, and ensure easy opening. It aims to provide a pouring cap that can be used.

  As a means for solving the above-mentioned problems, the present invention provides an outer cylinder that is externally fitted to the mouth of a container body that contains the contents, and is disposed on the radially inner side of the outer cylinder. A pour-out cap formed with a pour-out port for pour-out, and a pour-out cap connected to the pour-out tube through a weakened portion that can break a closing portion that closes the pour-out port. The outer cylinder is formed of a material harder than the material forming the dispensing cylinder.

In the pouring cap according to the present invention, the outer cylinder fitted to the mouth of the container body is formed of a material harder than the material forming the pouring cylinder. Even if the tightening allowance for the part is increased and the fitting force of the outer cylinder to the mouth part of the container body is increased, the outer cylinder can be prevented from being deformed in the radial direction, thereby preventing deterioration of the appearance quality. The fitting force of the outer cylinder to the mouth of the container body can be ensured.
In addition, by forming the dispensing tube from a relatively soft material, it is possible to ensure easy opening.
Thereby, the fitting force of the outer cylinder with respect to the mouth part of the container body can be ensured while preventing deterioration of the appearance quality, and easy opening performance can be ensured.

In addition, the dispensing cylinder is fitted into the outer cylinder, and a main cylinder part that is disposed inside the mounting cylinder part in the radial direction and fitted into the mouth of the container body And a vertical rib connecting the mounting cylinder part and the main body cylinder part.
In this case, it becomes possible to suppress the relative displacement of the mounting cylinder part and the main body cylinder part, and the position of the extraction cylinder relative to the outer cylinder and the container body can be stabilized.

  ADVANTAGE OF THE INVENTION According to this invention, the fitting force of the outer cylinder with respect to the opening part of a container body can be ensured, and easy openability can be ensured, preventing the fall of external appearance quality.

It is a longitudinal cross-sectional view of the extraction | pouring cap which concerns on embodiment of this invention. It is a longitudinal cross-sectional view of the state which unplugged the closure part of the extraction | pouring cap which concerns on embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 shows a longitudinal section in a state in which the dispensing cap 10 of the present embodiment is attached to the mouth portion 2 of the container body 1 that contains the contents. As shown in FIG. 1, the pouring cap 10 has an outer cylinder 11 fitted around the mouth portion 2, and an outlet 12 that is disposed inside the outer cylinder 11 and that dispenses the contents of the container body 1. The formed extraction cylinder 13 and the cover part 14 which coat | covers the outer cylinder 11 and the extraction cylinder 13 so that attachment or detachment is possible are provided.

  In the illustrated example, the outer cylinder 11, the extraction cylinder 13, and the lid body portion 14 are arranged on a common axis. Hereinafter, this common axis is referred to as a cap axis O, the lid 14 side along the cap axis O is the upper side, the opposite side is the lower side, the direction orthogonal to the cap axis O is the radial direction, and the cap axis O The direction of circling around is the circumferential direction. The dispensing cap 10 is mounted so that the cap axis O is coaxial with the container axis passing through the center of the container body 1.

  The outer cylinder 11 is formed of, for example, a synthetic resin material such as PP (polypropylene) or PET (polyethylene terephthalate), and has a lower mounting cylinder 15 that is fitted on the mouth 2 of the container body 1 and a lower mounting cylinder. An upper mounting cylinder portion 16 that extends upward from the upper end portion of 15 and holds the extraction cylinder 13 inside is integrally provided. A shoulder 17 projecting radially inward is formed at the upper end of the lower mounting cylinder 15, and the upper mounting cylinder 16 extends from the radially inner end of the shoulder 17, so that the upper mounting cylinder Reference numeral 16 denotes a radially inner side of the lower mounting cylinder portion 15. The upper mounting cylinder 16 holds the extraction cylinder 13 on the inner side in the radial direction by fitting on the outer peripheral surface of the extraction cylinder 13.

The dispensing cap 10 is a stopper-type cap, and a first engagement convex portion 18 for undercut fitting with the mouth portion 2 is radially provided on the inner peripheral surface of the lower end portion of the lower mounting cylinder portion 15. It is formed to protrude inside. A plurality of first engaging convex portions 18 are formed at intervals in the circumferential direction, and in the present embodiment, the first engaging convex portions 18 are formed relatively long in the vertical direction.
Here, on the outer peripheral surface of the mouth portion 2, a mouth lower convex portion 4 that protrudes outward in the radial direction and continuously extends in the circumferential direction is formed. The lower mounting cylinder portion 15 makes the inner surface in the radial direction of the first engagement convex portion 18 contact or approach a portion of the mouth portion 2 located below the mouth lower convex portion 4, The upper end of the first engaging convex part 18 is undercut fitted to the mouth part 2 by contacting or approaching the lower surface of the mouth lower convex part 4.

  In the present embodiment, in the lower mounting cylinder portion 15, from a portion located above the upper end portion of the first engaging convex portion 18 to a portion located below the upper end portion of the first engaging convex portion 18. A plurality of ridge portions 19 extending in the vertical direction are formed at intervals in the circumferential direction. On the other hand, a plurality of grooves 5 extending in the vertical direction are formed on the outer peripheral surface of the mouth lower convex portion 4 over the entire circumference of the outer peripheral surface of the mouth lower convex portion 4. The ridge portion 19 meshes with the groove 5 at an appropriate position, and restricts circumferential rotation of the outer cylinder 11 with respect to the mouth portion 2.

  Further, a retaining piece 20 that extends upward as it goes inward in the radial direction is formed in a portion of the lower mounting cylinder 15 that is located above the ridge 19. Here, a portion of the mouth portion 2 that is located above the mouth lower convex portion 4 on the outer peripheral surface is formed with a mouth upper convex portion 6 that protrudes outward in the radial direction and continuously extends in the circumferential direction. Has been. The stopper piece 20 is arranged so that its upper end faces the lower surface of the mouth upper convex portion 6 in the vertical direction, and when the outer cylinder 11 is moved upward relative to the container body 1 The piece 20 comes into contact with the upper convex portion 6 from below to prevent the outer cylinder 11 from coming off.

  On the inner peripheral surface of the upper end portion of the upper mounting cylinder portion 16, a second engagement convex portion 21 protruding radially inward is formed so as to extend in the entire circumferential direction, and the lower end portion of the upper mounting cylinder portion 16. A groove 21A that extends continuously in the circumferential direction and opens downward is formed on the inner peripheral surface of the inner surface. On the inner peripheral surface of the groove 21 </ b> A, a plurality of ridge portions 22 extending in the vertical direction are formed at intervals in the circumferential direction.

  Further, a male screw portion 23 is formed on the outer peripheral surface of the upper end portion of the upper mounting cylinder portion 16. A plurality of grooves 24 extending in the vertical direction are formed on the outer peripheral surface of the lower end portion of the upper mounting cylinder portion 16 over the entire circumference of the outer peripheral surface of the lower end portion of the upper mounting cylinder portion 16.

  The dispensing cylinder 13 is made of a synthetic resin material softer than the material forming the outer cylinder 11 such as LDPE (low density polyethylene). The dispensing cylinder 13 is disposed on the inner side in the radial direction of the mounting cylinder part 25, which is fitted in the upper mounting cylinder part 16 of the outer cylinder 11, and in the mouth part 2 of the container body 1. A fitted main body cylinder part 26, and a vertical rib 25A that is disposed between the attachment cylinder part 25 and the main body cylinder part 26 and connects the attachment cylinder part 25 and the main body cylinder part 26. Yes. The spout 12 is formed inside the main body cylinder part 26.

  In the illustrated example, the main body cylinder part 26 is connected to the inner peripheral surface of the upper end part of the mounting cylinder part 25 and the upper cylinder part 27 is gradually reduced in diameter toward the lower side, and the upper end is the upper cylinder part 27. A lower cylinder part 28 connected to the lower end and extending downward and fitted into the mouth part 2 of the container body 1. In addition, the lower end of the upper cylinder part 27 is located above the mouth part 2 of the container body 1. The main body cylinder part 26 includes a protruding cylinder part 29 that protrudes upward from a connection position between the upper end of the upper cylinder part 27 and the inner peripheral surface of the upper end part of the mounting cylinder part 25. A flange portion is formed at the upper end of the protruding cylinder portion 29 so as to project outward in the radial direction. A plurality of annular seal portions 26 </ b> A integrally formed on the outer peripheral surface of the lower cylinder portion 28 are pressed against the inner peripheral surface of the mouth portion 2, so that the main body cylinder portion 26 is fitted in the mouth portion 2. The

The mounting cylinder portion 25 protrudes radially outward from the outer peripheral surface of the upper end portion thereof and extends over the entire circumference in the circumferential direction, and protrudes radially outward from the outer peripheral surface of the lower end portion thereof. The lower convex portion 31 that extends over the entire circumference of the direction and the support convex portion 31B that protrudes downward from the lower end surface of the lower convex portion 31 and that is formed over the entire circumference at intervals in the circumferential direction. In preparation. A plurality of grooves 31 </ b> A extending along the vertical direction are formed in the portion located above the lower convex portion 31 on the outer peripheral surface of the lower end portion of the mounting cylinder portion 25.
Here, the upper engaging portion 30 and the lower protruding portion 31 sandwich the second engaging protruding portion 21 and the protruding strip portion 22 of the upper mounting cylinder portion 16 of the outer cylinder 11 in the vertical direction. In this state, the ridge portion 22 meshes with a groove 31A formed on the outer peripheral surface of the lower end portion of the mounting tube portion 25 at an appropriate position, and the relative circumferential rotation of the dispensing tube 13 and the outer tube 11 is restricted. ing. Further, the support convex portion 31 </ b> B is in contact with the upper end opening edge of the mouth portion 2.

  The vertical ribs 25 </ b> A are extracted with the front and back surfaces facing the circumferential direction. A plurality of the vertical ribs 25A are arranged at intervals in the circumferential direction. The vertical ribs 25 </ b> A are connected over the entire length in the vertical direction on the inner peripheral surface of the mounting cylinder part 25, and are connected across the upper cylinder part 27 and the lower cylinder part 28 of the main body cylinder part 26.

Inside the connecting portion between the upper tube portion 27 and the lower tube portion 28 in the dispensing tube 13, a closing portion 33 provided with a pull ring 32 is connected via a weakening portion 34 that can be broken. The closing part 33 has a substantially circular shape in a plan view, and closes the spout 12 so as to be openable via a weakening part 34 formed on the outer peripheral edge thereof. The pull ring 32 is connected to a position near the outer peripheral edge of the upper surface of the blocking portion 33 and can be put on a finger or the like.
The pull ring 32 is connected to the closing portion 33 so that the upper end of the pull ring 32 is located at substantially the same position as the upper end of the protruding cylindrical portion 29 in the vertical direction.

  The lid part 14 covers the upper part of the outer cylinder 11 and the extraction cylinder 13 from above, and includes a disk-shaped top wall part 35 and a peripheral wall part 36 extending downward from the outer peripheral edge of the top wall part 35. It is prepared as one. On the inner peripheral surface of the peripheral wall portion 36, a female screw portion 37 that is screwed into the male screw portion 23 formed on the upper mounting cylinder portion 16 of the outer cylinder 11 is formed, and the lid portion 14 is screwed onto the upper mounting cylinder portion 16. It is worn.

  Further, a ring member 39 is formed integrally with the peripheral wall 36 at the lower end of the peripheral wall 36 via a weakened portion 38. The inner peripheral surface of the ring member 39 is engaged with a groove 24 formed in the outer peripheral surface of the lower end portion of the upper mounting cylinder portion 16, thereby restricting the rotation of the lid body portion 14. Further, when the weakened portion 38 is broken and the ring member 39 is removed, the lid body portion 14 is allowed to rotate.

  In addition, an annular sealing peripheral wall portion 40 that extends downward and fits inside the protruding cylinder portion 29 is formed on the lower surface of the top wall portion 35. Here, the outer diameter of the peripheral wall 36 of the top wall 35 is substantially the same as the outer diameter of the lower mounting cylinder 15 of the outer cylinder 11, and the lid 14 is screwed onto the outer cylinder 11. When this is done, the lower mounting cylinder part 15 and the peripheral wall part 36 are in a state of extending in a substantially flush manner in the vertical direction. With such a configuration, in the pouring cap 10, the outer shape is made compact and the appearance quality is improved.

  Next, a method for attaching the dispensing cap 10 of the present embodiment to the container body 1 and a method for using the dispensing cap 10 will be described.

When mounting on the container body 1, first, the mounting cylinder part 25 of the extraction cylinder 13 is fitted inside the upper mounting cylinder part 16 of the outer cylinder 11. At this time, for example, the diameter of the mounting cylinder part 25 is reduced, the diameter of the upper mounting cylinder part 16 is increased, and further, the upper convex part 30, the lower convex part 31, and the second engaging convex part 21 are arranged in the radial direction. The mounting cylinder part 25 is inserted inside the upper mounting cylinder part 16 while being elastically deformed or the like. Next, the lid 14 is screwed to the upper mounting cylinder 16 to assemble the dispensing cap 10.
Then, the mouth portion 2 is inserted into the lower mounting cylinder portion 15 of the outer cylinder 11 from above the mouth portion 2, and the lower mounting cylinder portion 15 is increased in diameter while being fitted on the mouth portion 2. The outer fitting of the outer cylinder 11 to the mouth 2 is such that when the first engaging projection 18 reaches below the mouth lower projection 4 of the mouth 2, the lower mounting cylinder 15 is deformed. Then, the upper end of the first engaging convex portion 18 is completed by contacting or approaching the lower surface of the mouth lower convex portion 4 from below.

When using the dispensing cap 10, first, by rotating the lid body portion 14, the weakened portion 38 is broken to separate the ring member 39 from the lid body portion 14, and the lid body portion 14 is continuously continued. The lid 14 is removed from the outer cylinder 11 by rotating. Next, by putting a finger on the pull ring 32 or the like, as shown in FIG. 2, the blocking portion 33 is detached from the dispensing cylinder 13 by breaking the weakening portion 34 and the spout 12 is opened. Here, since the dispensing tube 13 is formed of a relatively soft material, the weakened portion 34 can be easily broken and the closing portion 33 can be easily removed.
And the content part accommodated in the container body 1 is discharged from the spout 12 by inclining the container body 1 etc. FIG. Thereafter, the lid 14 is screwed onto the outer cylinder 11 and the spout 12 is closed. At this time, the spout 12 is closed by fitting the sealing peripheral wall 40 inside the protruding cylinder 29 of the extraction cylinder 13.

In the pouring cap 10 of the present embodiment as described above, the outer cylinder 11 that is externally fitted to the mouth portion 2 of the container body 1 is formed of a material that is harder than the material that forms the pouring cylinder 13. The outer cylinder 11 is tightened with respect to the mouth portion 2 of the container body 1, that is, the radial dimension of the first engagement convex portion 18 is increased, and the outer cylinder body with respect to the mouth portion 2 of the container body 1 is taken. Even if the fitting force is increased, the outer cylinder 11 can be prevented from being deformed in the radial direction, and the fitting force of the outer cylinder 11 with respect to the mouth portion 2 of the container body 1 can be reduced while preventing deterioration of the appearance quality. Can be secured. In addition, the dispensing tube 13 can be formed of a relatively soft material to ensure easy opening.
Thereby, in this extraction | pouring cap 10, the fitting force of the outer cylinder 11 with respect to the opening | mouth part 2 of the container body 1 can be ensured, and easy openability can be ensured, preventing the fall of external appearance quality. it can.

  Further, in the present embodiment, the dispensing cylinder 13 includes the mounting cylinder part 25, the main body cylinder part 26 fitted into the mouth part 2, and the vertical ribs that connect the mounting cylinder part 25 and the main body cylinder part 26. 25A, the relative displacement of the mounting cylinder 25 and the main body cylinder 26 can be suppressed, and the position of the dispensing cylinder 13 relative to the outer cylinder 11 and the container body 1 can be stabilized. Can do.

  As mentioned above, although embodiment of the discharge device concerning this invention was described, this invention is not limited to above-described embodiment, In the range which does not deviate from the meaning, it can change suitably.

For example, in the above embodiment, the material forming the outer cylinder 11 is a synthetic resin material such as PP (polypropylene) or PET (polyethylene terephthalate), and the material forming the dispensing cylinder 13 is LDPE (low density polyethylene) or the like. Although explained, these are not specifically limited, The material of the outer cylinder 11 should just be harder than the material of the extraction | pouring cylinder 13. FIG.
Moreover, in the said embodiment, although the outer cylinder 11 and the extraction | pouring cylinder 13 were comprised by the different body, these may be integrated, and in this case, the outer cylinder 11 and the extraction | injection cylinder 13 are separate members by what is called two-color molding. To form.
Further, in the above-described embodiment, the configuration in which the support convex portion 31B is formed on the lower end surface of the lower convex portion 31 and this support convex portion 31B abuts on the upper end opening edge of the mouth portion 2 has been described. 31B may not be formed, and the lower end surface of the lower convex portion 31 may be in direct contact with the upper end opening edge of the mouth portion 2.

DESCRIPTION OF SYMBOLS 1 Container body 2 Opening part 10 Outlet cap 11 Outer cylinder 12 Outlet 13 Outlet cylinder 25 Installation cylinder part 25A Vertical rib 26 Main body cylinder part 33 Blocking part 34 Weakening part

Claims (2)

An outer cylinder that is externally fitted to the mouth of the container body that contains the contents, and a pouring outlet that is disposed inside the outer cylinder in the radial direction and that dispenses the contents of the container body A dispensing cap connected to the dispensing tube via a weakened portion that can break the closing portion that closes the dispensing port,
The outer cap is formed of a material harder than the material forming the pouring tube.   The dispensing tube includes a mounting tube portion that is fitted into the outer tube, a main body tube portion that is disposed inside the mounting tube portion in the radial direction, and is fitted into the mouth portion of the container body, The pouring cap according to claim 1, further comprising a longitudinal rib connecting the mounting cylinder part and the main body cylinder part.

Images