JP6264786B2 - Container with cap - Google Patents

Description

  The present invention relates to a capped container including a cap and a container.

  As a container with a cap in which the cap is detachably attached to the container, a container that can be detached by disengaging the cap and the container by rotating the cap around the longitudinal axis of the container is known. ing. For example, forming a continuous waveform at the lower end of the side wall of the cap, forming a continuous waveform that fits with the continuous waveform formed at the lower end of the side wall of the cap on the stepped portion of the container where the lower end of the side wall of the cap is in surface contact, It is known that an engagement protrusion is provided on the side wall portion facing the valley in the continuous waveform of the container step, and an engagement protrusion is provided on each of the inner surface of the lower convex portion and the surface of the container in the continuous waveform of the cap side wall. (For example, refer to Patent Document 1).

Japanese Utility Model Publication No. 56-645

  In the state of the art described above, the cap and the container are engaged in a state in which the waveform of the cap side wall is fitted to the waveform of the container step, and the cap is rotated around the vertical axis of the container from this engaged state. The corrugated oblique side of the lower end of the side wall of the cap slides on the corrugated oblique side of the container step portion, and the cap is moved up with respect to the container to disengage the cap from the container.

  Such a prior art has an advantage that the cap and the container can be easily disengaged by a cam action by sliding the corrugated oblique side portion of the lower end of the side wall of the cap on the corrugated oblique side portion of the container step portion. However, when the container is mechanically covered with the cap, the corrugated upper convex portion of the container step and the corrugated lower convex portion of the lower end of the cap side wall may stop against each other. If the operation of rotating the container with respect to the container is not applied, the waveform of the lower end of the cap side wall cannot be fitted to the waveform of the container step. For this reason, in the prior art, if the waveform of the lower end of the side wall of the cap is surely fitted to the waveform of the container step portion, there is a problem that the mechanical cap supply process is complicated due to the direction adjustment of the cap.

  Further, in the above-described prior art, when the cap is rotated around the longitudinal axis of the container to disengage the cap and the container, the engaging portions are ridden while sliding obliquely, There is a problem that it becomes difficult to obtain a click feeling that makes the user aware that the engagement has been disengaged by overcoming the engagement portions.

  This invention makes it an example of a subject to cope with such a problem. That is, in a container with a cap that fits the corrugation of the lower end of the cap side wall to the corrugation of the container step, the cap is prevented from stopping in a state where the upper convex portion of the container step and the lower convex portion of the lower end of the cap side wall are in contact with each other. It is an object of the present invention to make it easy to obtain a click feeling that makes the user aware that the container is disengaged.

In order to achieve such an object, a container with a cap according to the present invention comprises at least the following configuration.
It is a container with a cap provided with a container provided with a mouth and a shoulder, and a cap provided with a top plate part and a side wall and covered with the mouth. A corrugated step portion is provided on the lower end of the side wall portion of the cap, and a corrugated protrusion that can be fitted to the corrugated step portion is provided on the upper surface of the crest portion of the shoulder portion of the container, An arcuate ridge is provided , and the arcuate bulge is characterized in that the center of curvature of the profile of the longitudinal section is located at a height between the top of the peak and the bottom of the valley .

  In the present invention having such a feature, a corrugated step having a peak and a trough is provided on the shoulder of the container, and a corrugated protrusion that can be fitted to the corrugated container step is provided at the lower end of the side wall of the cap. In a container with a cap that fits the corrugation of the lower end of the cap side wall to the corrugation of the container step, the ridge (upward convex portion) of the container step and the corrugated protrusion (lower convex portion) of the lower end of the cap side wall It can be prevented from stopping. In addition, by providing an engaging portion that engages the cap and the container, it is possible to easily obtain a click feeling that makes the user aware that the cap is disengaged from the container.

It is explanatory drawing which showed the container with a cap which concerns on one Embodiment of this invention. The top view (a) and side view (b) of the container in the container with a cap which concern on embodiment of this invention are shown. (A) has shown the AA cut end view and BB cut end view in Fig.2 (a), (b) is CC sectional drawing in FIG.2 (b). It is explanatory drawing which showed the structural example of the cap in the container with a cap concerning embodiment of this invention, (a) is XX sectional drawing in (b), (b) has shown the bottom view. It is explanatory drawing (sectional drawing) which showed the specific structural example of the container with a cap which concerns on embodiment of this invention. (A) has shown the state in the middle of putting a cap on a container, (b) has shown the state which put the cap on the container.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In each figure, the same components are denoted by the same reference numerals, and a part of overlapping description is omitted. FIG. 1 is an explanatory view showing a container with a cap according to an embodiment of the present invention. The capped container 1 includes a container 10 and a cap 20. The container 10 includes a mouth portion 11 and a shoulder portion 12, and the cap 20 includes a top plate portion 21 and a side wall portion 22. The cap 20 is put on the mouth portion 11 of the container 10 and covers the opening of the mouth portion 11. The illustrated container 10 has a trunk portion 13, a shoulder portion 12 is formed above the trunk portion 13, and a mouth portion 11 is formed above the shoulder portion 12.

  The shoulder portion 12 of the container 10 is provided with a corrugated step portion 14 having a peak portion 14A and a trough portion 14B, and the lower end 22A of the side wall portion 22 of the cap 20 can be fitted to the corrugated step portion 14. A corrugated protruding piece 23 is provided. As illustrated, in a state where the corrugated step 14 in the shoulder 12 of the container 10 and the corrugated lower end 22A of the side wall 22 of the cap 20 are fitted together, the side wall 22 of the cap 20 is connected to the shoulder 12 of the container 10. The lower end 22 </ b> A of the cap 20 is in contact with the stepped portion 14 of the container 10.

  In such a container 1 with a cap, the shoulder 12 of the container 10 covered with the side wall 22 of the cap 20 is provided with an arcuate ridge 15 on the upper surface of the ridge 14A of the corrugated step 14. The arcuate raised portion 15 is a portion where the surface is partially raised with respect to the curved surface of the shoulder portion 12, and the surface is a portion curved in an arc shape including an arc shape. Further, in the example shown in FIG. 1, as an optional configuration, the container 10 includes a container side engaging portion 16, and the cap 20 includes a rib 25, an inner ring 26, and a cap side engaging portion (not shown). ).

  In FIG. 2, in the illustrated example, the container 10 has an axisymmetric shape with respect to the longitudinal axis 10P. The waveform of the stepped portion 14 is formed such that the top of the peak portion 14A appears every 45 ° about the vertical axis 10P. And for every formed peak part 14A, the arc-shaped protruding part 15 is formed in the shoulder part 12 in the upper surface of the peak part 14A.

  The container side engaging part 16 formed in the container 10 is a protrusion formed above the valley part 14B of the step part 14 at the shoulder part. The container side engaging portion 16 is formed every 45 ° with the valley portion 14B as the center, that is, the longitudinal axis 10P. The positional relationship between the container side engaging portion 16 and the arcuate ridge portion 15 is formed such that the outer edges of the adjacent arcuate ridge portions 15 overlap the container side engaging portion 16 at a portion close to each other.

  In FIG. 3, the arcuate ridge 15 described above has an arcuate (for example, arcuate or elliptical arc) surface having a center of curvature 15 </ b> S at a set position in the container 10. In the BB cut end surface of FIG. 3A, the arcuate ridge 15 has a height between the center of curvature 15S of the profile 15P of the longitudinal section between the top position 14A1 of the peak 14A and the bottom position 14B1 of the valley 14B. That is, it is located between the illustrated height difference H. 3 (b), the arcuate ridge 15 has a distance L between the contour 15Q of the cut end surface of the container 10 and the vertical axis 10P in the direction of the top position 14A1 of the peak 14A. It is formed to be a maximum.

  In FIG. 4, the cap 20 includes the top plate portion 21 and the side wall portion 22 as described above, and an inner ring 26 concentric with the top plate portion 21 is formed on the inner surface of the top plate portion 21. A rib 25 protruding toward the center of the cap 20 is formed on the inner surface of the side wall portion 22. The rib 25 is formed so as to correspond to the corrugated protrusion 23 at the lower end 22 </ b> A of the cap 20, and is formed in a linear shape upward from the top of the corrugated protrusion 23. The rib 25 is formed so that the height in the center direction is high on the upper side (the top plate portion 21 side) of the cap 20 and the height is low on the lower side (the lower end 22A side).

  A cap side engagement portion 24 that engages with the container side engagement portion 16 described above is formed below the rib 25. The container side engaging portion 16 and the cap side engaging portion 24 push down the top plate portion 21 of the cap 20 in a state in which the waveform of the lower end 22A of the cap 20 and the waveform of the stepped portion 14 of the container 10 are fitted to each other. The container 10 and the cap 20 are engaged with each other by the protrusion of the cap-side engagement portion 24 getting over the protrusion of the engagement portion 16.

  In the container 1 with a cap having such a configuration, when the cap 20 is put on the mouth portion 11 of the container 10, the corrugated protruding piece 23 of the cap 20 and the peak portion 14 </ b> A of the stepped portion 14 of the container 10 face each other. Then, the cap-side engaging portion 24 on the inner surface of the corrugated protrusion 23 comes into contact with the surface of the arcuate raised portion 15 in the container 10, so that the curved surface of the surface of the arcuate raised portion 15 performs a guiding action to Lead between adjacent arcuate ridges 15. When the cap 20 is mechanically covered on the mouth portion 11 of the container 10 by the guiding action of the arc-shaped ridge 15, the corrugated protrusion 23 of the cap 20 can be formed by simply applying a slight vibration. It will be in the state fitted in the trough part 14B.

  Such a guiding action of the arcuate ridge 15 is more effective by providing the rib 25 described above corresponding to the top position of the corrugated protrusion 23 of the cap 20. In the case where the rib 25 is provided, when the corrugated protrusion 23 of the cap 20 and the peak portion 14A of the step portion 14 in the container 10 come into contact with each other, only the rib 25 on the inner surface of the cap 20 is on the surface of the arcuate ridge 15. It becomes in an unstable state because of contact. Thus, even if slight vibration is applied, the rib 25 in contact with the surface of the arcuate ridge 15 slides on the curved surface of the arcuate ridge 15 and falls between the adjacent arcuate ridges 15 to be in a stable state. The fact that the ribs 25 fall between the adjacent arcuate ridges 15 means that the corrugated protrusions 23 of the cap 20 on which the ribs 25 are formed fit into the valleys 14B in the step 14 of the container 10. .

  Such guiding action of the arcuate ridges 15 becomes more effective by optimizing the surface shape of the arcuate ridges 15. For example, the surface shape of the arcuate ridge portion 15 is set so that the distance L between the contour 15Q of the cross section (horizontal cross section) perpendicular to the longitudinal axis 10P of the container 10 and the longitudinal axis 10P is maximized at the top position of the mountain portion 14A. Thus, when the position of the rib 25 slightly deviates from the top position of the peak portion 14 </ b> A, the rib 25 falls along the curved surface of the arcuate raised portion 15 to the position of the valley portion 14 </ b> B. Further, the rib 25 is formed by forming the surface shape of the arcuate raised portion 15 so that the center of curvature 15S of the profile 15P of the longitudinal section is located at the height between the top of the peak portion 14A and the bottom of the valley portion 14B. The surface of the arcuate ridge portion 15 in contact with the curved surface is a moderately inclined curved surface, and the rib 25 is likely to fall into a stable position (a position between the adjacent arcuate ridge portions 15).

  In addition to the above-described guiding action, the arcuate ridge 15 has an action that allows the cap 20 to be easily removed by advancing the timing of moving the cap 20 upward when the cap 20 is rotated and removed from the container 10. Have. That is, when the cap 20 is rotated around the longitudinal axis 10P of the container 10 in a state in which the corrugated step 23 at the lower end of the cap 20 is fitted to the corrugated step portion 14 in the container 10, the initial stage in the rotation of the cap 20 is performed. Then, the corrugated protrusion 23 at the lower end of the cap 20 moves along the corrugated step 14 of the container 10, and the cap-side engaging portion 24 formed on the rib 25 is formed on the surface of the arcuate raised portion 15 at substantially the same timing. The cap 20 moves upward with respect to the container 10 and leaves. At this time, when the cap 20 is put on the container 10 and a shrink film is put on the periphery of the cap 20 and the container 10, the cut of the shrink film (perforation, etc.) is easily cut by turning the cap 20. can do.

  When the container 10 includes the container side engaging portion 16 and the cap 20 includes the cap side engaging portion 24, the cap 20 is rotated around the longitudinal axis 10 </ b> P of the container 10 by providing the arc-shaped raised portion 15. Thus, it is easy to obtain a click feeling when the container side engaging portion 16 and the cap side engaging portion 24 are disengaged. That is, when the cap 20 is rotated about the longitudinal axis 10P of the container 10 in a state where the container side engaging portion 16 and the cap side engaging portion 24 are engaged, the cap side engaging portion in which the rib 25 is formed. In addition to the resistance of 24 overcoming the container side engaging portion 16 and the resistance when the corrugated protrusion 23 moves along the corrugated step portion 14, the lower end 22A of the cap 20 and the cap side engaging portion 24 are arcuate raised portions. After the resistance to ride on the surface of 15 is applied, the cap 20 moves upward with respect to the container 10 in the initial stage of the rotation of the cap 20 and leaves in a state where the resistance is reduced. At this time, the movement trajectory over which the cap-side engaging portion 24 gets over the container-side engaging portion 16 rises sharply compared to the prior art, and the resistance when the cap 20 moves away from the container 10 also sharply decreases. Therefore, it is easy to obtain a click feeling when the cap side engaging portion 24 gets over the container side engaging portion 16.

  FIG. 5 is an explanatory diagram (sectional view) showing a specific configuration example of a container with a cap according to an embodiment of the present invention. In this embodiment, the container with a cap includes the container 10 having the form described above, the inner plug 30 such as a pull ring type, and the cap 20 having the form described above. The container 10 here can be formed by blow molding a resin material such as polyethylene terephthalate (PET), and the inner plug 30 and the cap 20 can be formed by injection molding a resin material such as polyethylene or polypropylene. Can be formed.

  In this embodiment, an inner stopper 30 is attached to the mouth portion 11 of the container 10. The cap 20 is formed with the inner ring 26 described above so as to close the spout of the inner plug 30. The inner plug 30 is provided with a flange portion 31 projecting outside the mouth portion 11 of the container 10, and the outer diameter of the flange portion 31 is formed larger than the maximum outer diameter of the mouth portion 11. The rib 25 formed on the inner surface of the side wall portion 22 of the cap 20 is formed so that the diameter of a virtual circle in contact with the inner edge on the upper side thereof is substantially the same as the outer diameter of the flange portion 31.

  In such an embodiment, as shown in FIG. 5A, the upper inner edge of the rib 25 is put on the flange portion 31 while the cap 20 is put on the mouth portion 11 of the container 10, thereby covering the cap 20. The inclination is straightened and the cap 20 is prevented from being excessively inclined. As a result, the inner ring 26 of the cap 20 is inserted into the inner plug 30 without damaging the spout of the inner plug 30. Further, when the inner plug is omitted as shown in FIG. 1, the inner ring 26 is extended to the mouth portion 11 of the container 10, or the top plate portion 21 is brought into contact with the top surface of the mouth portion 11 of the container 10. The cap 20 alone may block the mouth portion 11 of the container 10 or ensure the sealing performance of the mouth portion 11.

  Further, the rib 25 also requires an action for facilitating the release of the cap-side engaging portion 24 from the cap mold when the cap 20 is formed. In addition, the cap side engaging portion 24 may be scraped because the cap is repeatedly opened and closed when the container is used, but the rib 25 serves to protect the cap side engaging portion 24 and cap side engagement. The effect of preventing scraping of the portion 24 is also required.

  As described above, the embodiments of the present invention have been described in detail with reference to the drawings. However, the specific configuration is not limited to these embodiments, and the design can be changed without departing from the scope of the present invention. Is included in the present invention. In addition, the above-described embodiments can be combined by utilizing each other's technology as long as there is no particular contradiction or problem in the purpose and configuration.

1: container with cap,
10: container, 10P: vertical axis, 11: mouth, 12: shoulder, 13: trunk
14: Step, 14A: Mountain, 14A1: Top position,
14B: Valley, 14B1: Bottom position,
15: Arc-shaped ridge, 15P, 15Q: Outline, 15S: Center of curvature,
16: Container side engaging part,
20: Cap, 21: Top plate part, 22: Side wall part, 22A: Lower end,
23: corrugated protrusion, 24: cap side engaging portion, 25: rib,
26: Inner ring,
30: Inner plug, 31: Flange

Claims (6)

A container with a cap provided with a container provided with a mouth and a shoulder;
On the shoulder of the container, a corrugated step having a peak and a valley is provided,
At the lower end of the side wall portion of the cap, a corrugated protrusion that can be fitted to the step portion of the corrugation is provided,
On the upper surface of the peak in the shoulder of the container, an arcuate ridge is provided ,
The arcuate ridge is a container with a cap , wherein the center of curvature of the profile of the longitudinal section is located at a height between the top of the peak and the bottom of the valley . A container side engagement portion is provided above the valley portion in the shoulder portion of the container,
The container with a cap according to claim 1, wherein a cap side engaging portion that engages with the container side engaging portion is provided on the inner surface of the side wall of the cap and above the corrugated protrusion.   The container with a cap according to claim 1 or 2, wherein a rib is provided on the inner surface of the side wall of the cap at the top position of the corrugated protrusion. The rib is linearly formed upward from the top of the corrugated protrusion,
4. A container with a cap according to claim 3, wherein the height of the rib is higher on the upper side and lower on the lower side. A container side engagement portion is provided above the valley portion in the shoulder portion of the container,
A cap side engaging portion that is engaged with the container side engaging portion on the inner surface of the side wall of the cap and above the corrugated protrusion;
On the inner surface of the side wall portion of the cap, a rib formed linearly from the top of the corrugated protrusion is provided,
The container with a cap according to claim 1, wherein the cap-side engaging portion is provided on a lower side of the rib.   The arcuate bulge portion has a distance between the contour of the cut cross section of the container and the longitudinal axis of the container that is maximized in the direction of the top position of the peak portion. 2. A container with a cap according to item 1.

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