JP2019206384A - Container with over-cap - Google Patents

Abstract

To provide a container with an over-cap in which the sound quality of a fitting sound generated when the over-cap is engaged with the cap undercut is enhanced.SOLUTION: A container 1 with an over-cap has a container body 10 having a mouth part 11, a cap 20 attached to the mouth part 11, and an over-cap 30 detachably attached to the outside of the cap 20, in which the over-cap 30 includes an outer peripheral wall 31a and a top wall 31b, has a topped cylindrical over-cap body 31 that covers the cap 20, and an inside cylindrical body 32 which is mounted on the inside of the outer peripheral wall 31a with an upper end spaced apart from the top wall 31b and is detachably locked to the outer peripheral surface of the cap 20 by undercut engagement, the container 1 with the over-cap, wherein an echo pace 40 opened to an upper end 32c of the inside cylindrical body 32 is provided between the inner peripheral surface of the outer peripheral wall 31a and the outer peripheral surface of the inside cylindrical body 32.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a container with an overcap in which an overcap covering the cap is detachably attached to the outside of a cap attached to the mouth of a container body.

  For example, a container for storing contents such as cosmetics is equipped with a pump at the mouth of the container body that can operate the pump by pushing down the nozzle head so that the contents can be ejected from a spout provided in the nozzle head. In general, a cap or a cap such as an opening / closing cap that opens and closes a spout plug attached to the mouth is attached and used.

  As such a container, conventionally, in order to prevent the contents from leaking out due to an erroneous operation of the nozzle head during carrying, etc., an overcap covering the cap is detachably attached to the outside of the cap. A container with an overcap is known (see, for example, Patent Document 1).

  In the container with an overcap having the above-described configuration, many overcaps are used that are locked to the cap by undercut engagement. In this case, a fitting sound is generated when the overcap engages with the cap undercut. Therefore, it can be recognized that the overcap is locked to the cap by the fitting sound.

JP 2017-132542 A

  However, in the conventional container with an overcap, sufficient consideration has not been given to the sound quality of the fitting sound generated when the overcap is undercut-engaged with the cap, and the fitting sound has a better sound quality. There was room for improvement in terms of doing.

  An object of the present invention is to solve such problems, and an object of the present invention is to provide a container with an overcap that improves the sound quality of a fitting sound generated when the overcap engages with the cap undercut. Is to provide.

  A container with an overcap according to the present invention is a container with an overcap having a container body having a mouth, a cap attached to the mouth, and an overcap detachably attached to the outside of the cap. The overcap includes an outer peripheral wall and a top wall, and is attached to the inner side of the outer peripheral wall with a top-like cylindrical overcap body covering the cap, and an upper end spaced apart from the top wall. A cylindrical inner cylinder that is removably locked to the outer peripheral surface of the inner cylinder by undercut engagement, and the inner cylinder is between the inner peripheral surface of the outer peripheral wall and the outer peripheral surface of the inner cylindrical body. An open reverberation space is provided at the upper end of the body.

  In the container with an overcap according to the present invention, in the configuration described above, a plurality of groove-like portions that are recessed radially inward and open at the upper end of the inner cylinder are spaced apart in the circumferential direction on the outer peripheral surface of the inner cylinder. It is preferable that the reverberation space is defined by the groove-shaped portion and the outer peripheral wall.

  In the container with an overcap according to the present invention, in the configuration described above, a plurality of guide protrusions that protrude radially inward are provided on the inner peripheral surface of the inner cylindrical body at equal intervals in the circumferential direction. It is preferable that the inner cylindrical body is held coaxially with the cap by the protrusion coming into contact with the outer peripheral surface of the cap.

  In the above configuration, the container with an overcap according to the present invention preferably has a lower end of the inner cylinder abutting against a shoulder of the container body when the inner cylinder is undercut engaged with the cap.

  In the container with an overcap according to the present invention, in the above-described configuration, the locked protrusion provided on the inner peripheral surface of the inner cylinder is undercut engaged with the locking protrusion provided on the outer peripheral surface of the cap from below. It is preferable to do this.

  ADVANTAGE OF THE INVENTION According to this invention, the container with an overcap which improved the sound quality of the fitting sound produced when an overcap engages with a cap by undercut can be provided.

It is a half sectional view of a container with an overcap concerning one embodiment of the present invention. It is sectional drawing which follows the AA line in FIG. It is a half sectional view showing a modification of the container with an overcap shown in FIG.

  Hereinafter, the configuration of the overcap-equipped container 1 according to an embodiment of the present invention will be described in detail with reference to the drawings.

  In the present specification and claims, the up and down direction means the up and down direction in a state where the container 1 with an overcap is in an upright posture as shown in FIG. 1, and the radial direction is with an overcap. The direction orthogonal to the central axis O of the container 1 is meant.

  The container 1 with an overcap can be used, for example, for the purpose of containing a liquid such as cosmetics as a content. As shown in FIG. 1, the container body 10, the cap 20 with a pump, and the overcap 30 are provided. Have. In FIG. 1, for the sake of convenience, the left half of the center axis O of the overcap 30 is omitted.

  The container body 10 includes a cylindrical mouth portion 11, a shoulder portion 12 extending radially outward from the lower end of the mouth portion 11, and a bottomed cylindrical body portion extending downward from the outer peripheral end of the shoulder portion 12. 13 is integrated into a bottle shape, and the inside is a content storage space S. On the outer peripheral surface of the mouth portion 11, a male screw 11a for mounting a cap 20 with a pump is integrally provided.

  As the container main body 10, for example, a blow molded container made of synthetic resin can be used. However, if the mouth portion 11 is provided, other types of containers such as a glass bottle or a tube container can also be used. Moreover, if the container main body 10 has the mouth part 11, the shape can be variously changed, such as making the mouth part 11 and the trunk | drum 13 into a rectangular tube shape or an elliptical cylinder shape instead of a cylindrical shape.

  The cap 20 has a mounting cylinder portion 21 made of a synthetic resin having a diameter larger than that of the mouth portion 11. The mounting cylinder portion 21 has a cylindrical shape, and an internal thread 21a is provided on the inner peripheral surface thereof. The cap 20 is attached to the mouth portion 11 by the mounting cylinder portion 21 being screwed to the male screw 11a of the mouth portion 11 at the female screw 21a. Thus, in this Embodiment, the cap 20 with a pump is used as a cap with which the opening | mouth part 11 is mounted | worn.

  The cap 20 includes a pump mechanism unit 22. A pump holding part 23 is integrally provided above the mounting cylinder part 21, and the pump mechanism part 22 is held by the pump holding part 23.

  The pump mechanism portion 22 includes a pump body 22a disposed inside the mouth portion 11. A stem 22b protrudes upward from the upper end of the pump body 22a, and a nozzle head 22c is attached to the upper end of the stem 22b. ing. The nozzle head 22c is provided with a lateral nozzle 22d protruding outward in the radial direction, and a pump body is provided at the tip of the nozzle 22d via a flow path (not shown) provided in the nozzle head 22c and a stem 22b. A jet port 22e communicating with 22a is provided.

  The nozzle head 22c protrudes upward from the pump holding part 23 and can be pushed downward. When the nozzle head 22c is pushed down, the stem 22b enters the inside of the pump holding part 23, and the pump body 22a operates. When the pump main body 22a is operated, the contents sucked into the pump main body 22a are pumped to the nozzle head 22c through the stem 22b, and are ejected to the outside from the ejection port 22e. When the pressing operation of the nozzle head 22c is released, the nozzle head 22c is pushed up by an urging force of a spring (not shown) to return to the original position, and the contents stored in the storage space S are restored by the returning operation. It is sucked into the pump body 22a. Therefore, by repeatedly performing the pressing operation and the return operation of the nozzle head 22c, the content liquid accommodated in the accommodation space S can be ejected to the outside from the ejection port 22e by a predetermined amount.

  Between the upper end of the mouth part 11 and the pump holding part 23, an annular seal body 24 for preventing leakage of contents from the mouth part 11 is mounted. Although not shown in detail, a suction tube extending to the bottom of the accommodation space S is attached to the lower end of the pump body 22a, and the pump body 22a sucks contents from the bottom of the accommodation space S through the suction tube. It is supposed to be configured.

  A cover 25 is attached to the outside of the mounting cylinder part 21, and the mounting cylinder part 21 and the pump holding part 23 are covered with the cover 25. In the present embodiment, the cover 25 is also called a gold crown formed of a metal such as a steel material or an aluminum alloy. The cover 25 has a cylindrical outer peripheral wall 25a that is coaxial with the central axis O and has a constant outer diameter, and a flange portion 25b that extends radially inward from the upper end of the outer peripheral wall 25a. The outer peripheral wall 25a is the mounting cylinder portion 21. It is fitted and fixed to the mounting cylinder portion 21 by being press-fitted to the outside. The outer surface of the cover 25 is provided with glossy plating or painting, which enhances the aesthetic appearance of the container 1 with an overcap. The nozzle head 22c is disposed inside the flange portion 25b and can operate in the vertical direction without interfering with the cover 25.

  The cover 25 is not limited to a metal one but may be a synthetic resin one, for example.

  The outer peripheral wall 25a of the cover 25 is provided with a plurality of locking protrusions 25c that protrude outward in the radial direction from the outer peripheral surface of the outer peripheral wall 25a. The respective locking projections 25c have the same shape, and are arranged at equal intervals in the circumferential direction with their positions in the vertical direction matching each other. In the illustrated case, each of the plurality of locking projections 25c is configured as a circular and spherically curved projection in which a part of the outer peripheral wall 25a protrudes radially outward by pressing.

  The overcap 30 is detachably attached to the outside of the cap 20. The cap 20 can be covered with the overcap 30 by attaching the overcap 30 to the outside of the cap 20 when not in use. Thereby, when carrying the container 1 with an overcap, it can prevent that the nozzle head 22c is pushed down accidentally and the content leaks out. On the other hand, by removing the overcap 30 from the cap 20, the cap 20 can be exposed to the outside and the contents can be ejected.

  The overcap 30 has an overcap body 31 and an inner cylinder 32, and has a two-part configuration in which the inner cylinder 32 is assembled inside the overcap body 31.

  The overcap body 31 is made of ABS resin and has a cylindrical shape with a cylindrical outer peripheral wall 31a and a top wall 31b that integrally closes the upper end of the outer peripheral wall 31a. The overcap 30 can cover the cap 20 in the overcap body 31.

  The outer diameter of the outer peripheral wall 31 a is substantially the same as the outer diameter of the body portion 13 of the container body 10. Thereby, the sense of unity between the overcap 30 and the container body 10 when the overcap 30 is attached to the outside of the cap 20 can be enhanced, and the aesthetics of the container 1 with an overcap can be enhanced.

  Note that the material of the overcap body 31 is not limited to ABS resin, but may be variously changed such as other synthetic resin or metal.

  The inner cylinder 32 is made of polypropylene (PP) and has a cylindrical shape having a smaller diameter than the outer peripheral wall 31 a of the overcap body 31 and a larger diameter than the outer peripheral wall 25 a of the cover 25. The inner cylinder 32 has a claw portion 32a integrally provided on the outer peripheral surface on the lower end side thereof and engages with a recess 31c provided on the inner peripheral surface on the lower end side of the outer peripheral wall 31a. It is attached inside the outer peripheral wall 31a. Further, a flange-like portion 32b extending radially outward is integrally provided at the lower end of the inner cylindrical body 32, and this flange-like portion 32b engages with a step portion 31d provided at the lower end of the outer peripheral wall 31a. By doing so, the vertical position with respect to the overcap body 31 is defined so that the upper end 32c of the inner cylinder 32 is spaced downward from the lower surface (inner surface) of the top wall 31b of the overcap body 31. ing. Thus, the inner cylinder 32 is mounted on the inner side of the outer peripheral wall 31a of the overcap body 31 with the upper end 32c thereof being separated from the top wall 31b of the overcap body 31.

  Since the inner cylinder 32 is made of polypropylene, the lower end side portion of the inner cylinder 32 can be easily elastically deformed in the radial direction, so that the hard cap resin cannot be easily deformed by the overcap body 31. Even if it is made, the claw part 32a can be easily engaged with the concave part 31c of the overcap body 31.

  The material of the inner cylindrical body 32 is not limited to polypropylene but can be variously changed such as other synthetic resin or metal.

  A locked projection 32 d is integrally provided on the inner peripheral surface of the inner cylinder 32. In the case shown in the figure, the latching protrusion 32d is configured as an annular rib that protrudes radially inward from the inner peripheral surface of the inner cylindrical body 32 and extends over the entire circumference of the inner peripheral surface of the inner cylindrical body 32. ing.

  The inner diameter of the portion protruding toward the radially inner side of the locked protrusion 32d is larger than the diameter of a virtual circle passing through the portion protruding toward the radially outer side of the plurality of locking protrusions 25c provided on the cover 25. Is also getting smaller. Therefore, by attaching the overcap 30 to the outside of the cap 20, the locked projection 32 d is engaged with the locking projection 25 c from the lower side, and the overcap 30 is detachably locked to the cap 20. be able to.

  That is, when the overcap 30 is mounted on the outer side of the cap 20, the locked projection 32d is locked while elastically deforming the inner cylindrical body 32 or the cover 25 so as to be radially expanded or contracted away from each other. It moves over the protrusion 25c and moves to the lower side of the locking protrusion 25c, and engages with the locking protrusion 25c from the lower side undercut. Thus, the overcap 30 is detachably locked to the cap 20 by the undercut engagement of the locked protrusion 32d provided on the inner cylinder 32 with the locking protrusion 25c provided on the cover 25. The

  In the present embodiment, when the locked projection 32d is undercut engaged with the locking projection 25c and the overcap 30 is detachably locked to the cap 20, the lower end portion of the inner cylinder 32, that is, the flange The shaped portion 32 b comes into contact with the upper surface of the shoulder portion 12 of the container body 10. In addition, the locked protrusion 32d in an undercut engagement state with the locking protrusion 25c is not a cylindrical outer peripheral surface below the locking protrusion 25c of the outer peripheral wall 25a, but the radially outer side of the locking protrusion 25c. It abuts on the part below the part where the amount of protrusion is the largest (in the illustrated case, the central part in the vertical direction). As a result, the overcap 30 is locked to the cap 20 in a state of being biased downward by the elastic force of the inner cylinder 32 or the cover 25. Therefore, when the overcap 30 is attached to the cap 20 and the locked projection 32d is engaged with the locking projection 25c undercut, the overcap 30 moves while being biased downward, and the flange-shaped portion 32b is moved. A fitting sound with a desired volume can be generated by hitting the shoulder 12 of the container body 10.

  In the container 1 with an overcap according to the present embodiment, the inner circumference of the outer peripheral wall 31a of the overcap main body 31 is improved in order to improve the sound quality of the fitting sound generated by the undercut engagement when the overcap 30 is attached to the cap 20. A reverberation space 40 is provided between the surface and the outer peripheral surface of the inner cylindrical body 32. With such a configuration, the fitting sound generated by the undercap engagement of the overcap 30 with the cap 20 propagates upward inside the inner cylinder 32, and moves upward from the upper end 32 c of the inner cylinder 32. And the fitting sound reflected by the top wall 31b of the overcap body 31 and reflected by the top wall 31b is generated between the inner peripheral surface of the outer peripheral wall 31a of the overcap main body 31 and the outer peripheral surface of the inner cylindrical body 32. The sound quality of the fitting sound can be improved to a good sound quality so as to surround the reverberation space 40 provided between the two.

  As shown in FIGS. 1 and 2, in the present embodiment, a plurality of grooves that are recessed in an arc shape toward the radially inner side and open to the upper end 32 c of the inner cylinder 32 in the outer peripheral surface of the inner cylinder 32. The portion 32e is provided at equal intervals in the circumferential direction, and the reverberation space 40 is defined by the groove portion 32e and the outer peripheral wall 31a of the overcap body 31. As shown in FIG. 1, the lower end position of each groove-like portion 32e is on the upper side of the locked projection 32d. Each reverberation space 40 is open to the upper end 32 c of the inner cylinder 32, and the fitting sound reflected by the top wall 31 b can enter each reverberation space 40 via the upper end 32 c of the inner cylinder 32.

  As described above, a plurality of vertically long gaps extending in the vertical direction and opened to the upper end 32 c of the inner cylinder 32 between the inner peripheral surface of the outer peripheral wall 31 a of the overcap body 31 and the outer periphery of the inner cylinder 32. By adopting a configuration in which the reverberation space 40 is provided at intervals in the circumferential direction, the degree of the fitting sound over the reverberation space 40 can be adjusted to an appropriate level, and the sound quality of the fitting sound can be further improved. .

  In addition, since the lower end position of each groove-like portion 32e is located above the locked projection 32d, the thickness of the inner cylindrical body 32 at the portion where the locked projection 32d is provided can be sufficiently ensured. . Accordingly, the overcap 30 is attached to the cap 20 while providing a reverberation space 40 between the inner peripheral surface of the outer peripheral wall 31a of the overcap body 31 and the outer peripheral surface of the inner cylindrical body 32 to further improve the sound quality of the fitting sound. A sufficient elastic force is generated in the inner cylindrical body 32 when the undercut engagement is performed, so that the volume of the fitting sound can be sufficiently ensured.

  As shown in the drawing, a gap 41 may be provided between the outer peripheral surface of the inner cylindrical body 32 where the groove-like portion 32 e is not provided and the inner peripheral surface of the outer peripheral wall 31 a of the overcap body 31. In this case, these gaps 41 communicate with the reverberation space 40 and constitute a part of the reverberation space 40. Therefore, it is preferable to adjust the groove width or number of the groove-like portions 32e in consideration of the gap 41. . By this adjustment, the degree of the fitting sound over the reverberation space 40 can be made more appropriate, and the sound quality of the fitting sound can be further improved.

  The gap 41 may not be provided.

  As described above, in the present embodiment, the overcap body 31 is made of hard ABS resin among synthetic resins. As a result, the overcap 30 is engaged by undercut engagement with the cap 20, and the fitting sound that escapes upward from the upper end 32c of the inner cylindrical body 32 is effectively reflected (reflected) by the top wall 31b, and fitted. The sound quality of the combined sound can be further improved.

  As shown in FIG. 1, in the present embodiment, a plurality of guide protrusions 32 f that protrude inward in the radial direction are provided at equal intervals in the circumferential direction on the inner peripheral surface of the inner cylinder 32. More specifically, the inner cylindrical body 32 is curved toward the inner side in the radial direction along the shape of the groove-shaped portion 32e at the portion where the groove-shaped portion 32e is provided, so that the inner peripheral surface thereof has a groove shape. A longitudinal rib portion 32g that protrudes radially inward along the shape of the portion 32e is integrally provided. A guide protrusion 32f is provided on the lower end side of the vertical rib-shaped portion 32g so as to protrude further radially inward than the vertical rib-shaped portion 32g.

  When the overcap 30 is attached to the cap 20, the plurality of guide protrusions 32f are in contact with the outer peripheral surface of the outer peripheral wall 25a and move along the outer peripheral surface of the outer peripheral wall 25a. Accordingly, the overcap 30 is attached to the cap 20 while the inner cylinder 32 is held coaxially with the outer peripheral wall 25a (that is, the cap 20). Therefore, when the overcap 30 engages with the cap 20 undercut, the flange-like portion 32b of the inner cylindrical body 32 uniformly hits the shoulder 12 of the container body 10 over the entire circumference so that the fitting sound is generated. While being able to make it easy to emit, the touch which an operator feels at the time of a fitting can be made favorable.

  FIG. 3 is a half cross-sectional view showing a modified example of the container with an overcap shown in FIG. In FIG. 3, members corresponding to those described above are denoted by the same reference numerals.

  In the case shown in FIG. 1, a cap 20 with a pump is used as a cap attached to the mouth portion 11, but various configurations can be used as the cap 20 attached to the mouth portion 11. . FIG. 3 shows a modified example in which the cap 20 attached to the mouth portion 11 is configured as an opening / closing cap that opens and closes the spout 50 attached to the mouth portion 11.

  The spout 50 has a cylindrical seal tube 51 fitted to the inner peripheral surface of the mouth portion 11 and is liquid-tightly attached to the mouth portion 11, and squeezes (presses) the body portion 13 of the container body 10. Alternatively, the contents stored in the storage space S can be poured out through the dispensing cylinder 52 by placing the container body 10 in an inverted posture. A diameter-reducing cylinder portion 53 that gradually decreases in diameter toward the accommodation space S is integrally provided at the lower end of the dispensing cylinder 52 so that the contents are poured out little by little from the dispensing cylinder 52 to the outside. It has become.

  The cap 20 is configured to integrally include a closing portion 26 at the upper end of the mounting cylinder portion 21 instead of the pump holding portion 23. The closing part 26 covers the upper part of the pouring stopper 50, and a plug body 26 a that fits the pouring cylinder 52 and closes the pouring cylinder 52 is integrally provided on the lower surface thereof. Reference numeral 26 b denotes a stopper cylinder that comes into contact with the upper surface of the spout 50 when the cap 20 is attached to the mouth portion 11.

  The cover 25 has a configuration in which a top wall portion 25d is provided at the upper end of the outer peripheral wall 25a in place of the flange portion 25b, and covers the entire spout 50.

  In such a modification, the undercut engagement of the inner cylinder 32 with the cover 25 is released to remove the overcap 30 from the cap 20, and the mounting cylinder portion 21 is rotated together with the cover 25 to remove the cap 20 from the container. By removing from the mouth portion 11 of the main body 10, the content can be poured out by exposing the spout 50 to the outside. On the other hand, when not in use, the mounting cylinder portion 21 is rotated together with the cover 25 to attach the cap 20 to the mouth portion 11, thereby closing the dispensing cylinder 52 of the dispensing tap 50 and overcap 30 outside the cap 20. By attaching the inner cylinder 32 to the cover 25 by undercut engagement, the cap 20 can be prevented from being opened and closed unexpectedly, and the contents can be surely leaked out during carrying. Can be prevented.

  It goes without saying that the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention.

  For example, in the above-described embodiment, the container 1 with an overcap is used for the purpose of storing cosmetics. However, the present invention is not limited to this, and the present invention is applied to a container for storing various contents. Can do.

  Moreover, in the said embodiment, as a structure of undercut engagement, the cyclic | annular latching protrusion 32d extended over the perimeter is provided in the inner peripheral surface of the inner side cylinder 32, and each is provided in the outer peripheral surface of the outer peripheral wall 25a. A plurality of circular protrusion-like locking protrusions 25c are provided, but a plurality of circular protrusion-like locking protrusions 32d are provided on the inner peripheral surface of the inner cylindrical body 32, and the outer peripheral surface of the outer peripheral wall 25a. An annular locking projection 25c extending over the entire circumference may be provided.

  Further, in the above-described embodiment, the configuration including the locking projection 25c and the locked projection 32d is adopted as the configuration of the undercut engagement. It is also possible to employ a configuration for engaging the cut.

  Further, the cap 20 may be configured without the cover 25. In this case, a locking projection can be provided on the outer peripheral surface of the mounting cylinder portion 21.

  Further, the lower end (flange-like portion 32 b) of the inner cylinder 32 may not be in contact with the shoulder 12 when the overcap 30 is attached to the cap 20. In this case, when the locked protrusion 32d gets over the locking protrusion 25c, the locking protrusion 25c hits the inner peripheral surface of the inner cylinder 32, or the locked protrusion 32d hits the outer peripheral surface of the outer peripheral wall 25a. It can be set as the structure which a fitting sound generate | occur | produces.

DESCRIPTION OF SYMBOLS 1 Container 10 with an overcap Container body 11 Mouth part 11a Male thread 12 Shoulder part 13 Body part 20 Cap21 Installation cylinder part 21a Female screw 22 Pump mechanism part 22a Pump main body 22b Stem 22c Nozzle head 22d Nozzle 22e Outlet 23 Pump holding part 24 Seal Body 25 Cover 25a Outer peripheral wall 25b Flange 25c Locking projection 25d Top wall 26 Closure 26a Plug 26b Stopper cylinder 30 Overcap 31 Overcap body 31a Outer wall 31b Top wall 31c Recess 31d Step 32 Inner cylinder 32a Claw Portion 32b Flange-shaped portion 32c Upper end 32d Locked protrusion 32e Groove-shaped portion 32f Guide protrusion 32g Vertical rib-shaped portion 40 Resonance space 41 Gap 50 Outlet 51 Seal tube 52 Outlet tube 53 Reduced-diameter tube portion O Center axis S Storage space

Claims (5)

A container with an overcap having a container body having a mouth, a cap attached to the mouth, and an overcap detachably attached to the outside of the cap,
The overcap is
An outer cap wall and a top wall, and a cap-shaped tubular overcap body covering the cap;
A cylindrical inner cylindrical body that is mounted on the inner side of the outer peripheral wall with an upper end separated from the top wall and is detachably locked to the outer peripheral surface of the cap by undercut engagement;
A container with an overcap provided between the inner peripheral surface of the outer peripheral wall and the outer peripheral surface of the inner cylindrical body, wherein an echo space opened at the upper end of the inner cylindrical body is provided. On the outer peripheral surface of the inner cylindrical body, a plurality of groove portions that are recessed radially inward and open at the upper end of the inner cylindrical body are provided at intervals in the circumferential direction,
The container with an overcap according to claim 1, wherein the reverberation space is defined by the groove-shaped portion and the outer peripheral wall. On the inner peripheral surface of the inner cylindrical body, a plurality of guide protrusions that protrude radially inward are provided at equal intervals in the circumferential direction,
The container with an overcap according to claim 1 or 2, wherein the plurality of guide protrusions are in contact with an outer peripheral surface of the cap so that the inner cylindrical body is held coaxially with the cap.   The container with an overcap according to any one of claims 1 to 3, wherein a lower end of the inner cylinder abuts against a shoulder portion of the container body when the inner cylinder is undercut engaged with the cap. .   The locked protrusion provided on the inner peripheral surface of the inner cylindrical body engages with the locking protrusion provided on the outer peripheral surface of the cap undercut from below, according to any one of claims 1 to 4. Container with overcap as described.

Images