JP6806592B2 - Multi-thread screw type opening and closing container - Google Patents

Description

The present invention includes a container body having a plurality of threaded portions formed on the outer surface of the mouth portion at intervals around the axis, and a cap having a plurality of threaded portions screwed with the threaded portions of the container body. Regarding the threaded screw type opening / closing container.

Patent Document 1 describes a container body having a plurality of threaded portions formed on the outer surface of the mouth portion at intervals around the axis, and a cap having a plurality of threaded portions screwed with the threaded portion of the container body. A multi-threaded screw type opening / closing container is disclosed. According to such a container, the cap can be opened and closed with a small rotation angle.

Japanese Patent No. 5882022

However, in a multi-thread screw type opening / closing container, if the pitch of the threaded portion is increased, the usability is improved, but the tightening force is lowered, so that the cap may loosen or come off due to vibration or dropping during distribution.

The present invention provides a multi-thread screw type opening / closing container capable of solving the above-mentioned problems of the prior art, maintaining ease of opening / closing during use, and preventing loosening of the cap and removal of the cap during distribution. The purpose is.

In order to solve the above-mentioned problems, the multi-threaded screw type opening / closing container of the present invention has a container body having a plurality of screw portions formed on the outer surface of the mouth portion at intervals around the axis, and a screw portion of the container body. A cap having a plurality of screw portions to be screwed is provided, and the cap is a ring body connected to a cap body having the threaded portion formed on an inner surface and a ring body connected to the lower end of the cap body via a breakable connecting portion. The container body is provided with a movement restricting means for restricting the upward movement of the ring body by locking the outer surface of the container body in an upward direction along the axis.

In the multi-threaded screw type opening / closing container of the present invention, the movement restricting means is formed on the protrusion formed on the inner surface of the ring body and the outer surface of the container body, and is locked to the protrusion in the upward axis direction. A guide recess is formed in the container body, which extends in a direction along the threaded portion of the container body and guides the protrusion to the horizontal groove when the cap is assembled to the container body. To.

Further, in the multi-threaded screw type opening / closing container of the present invention, the lateral groove is an intermediate portion between the first end portion on the front side in the tightening direction of the cap and the second end portion on the rear side in the tightening direction. is shall connected to the road,
The projections are you positioned in the first end at a final assembled position relative to the container body of the cap.

Further, in the multi-strip threaded opening container of the present invention, while the projection is located at the first end portion of the transverse groove, that is configured to tension is generated in the connecting portion.

Further, in the multi-threaded screw type opening / closing container of the present invention, the protrusion moves from the position of the first end portion to the position of the second end portion as the cap is opened, and the second end portion is moved. It is preferable to lock the lateral groove at the position of the two ends in the upward direction of the axis.

Further, in the multi-threaded screw type opening / closing container of the present invention, after the protrusion has once moved from the position of the first end portion to the position of the second end portion in the lateral groove, the first of the protrusions. It is preferable that a return regulation protrusion for restricting the return to the position of one end is formed.

Further, in the multi-threaded screw type opening / closing container of the present invention, the protrusion is formed in the guide recess in the process of moving the protrusion from the position of the first end portion to the second position. It is preferable that an entry control protrusion is formed to regulate entry into the road.

In addition, in the multi-threaded screw type opening / closing container of the present invention, the lower end edge of the ring body is formed in a deformed shape other than flat, and the protrusion is formed on the outer surface of the container body. When it is located at one end, it matches the deformed shape of the ring body, but when the protrusion is located at the second end of the lateral groove, it is preferable that a pattern deviating from the deformed shape is formed.

In the multi-threaded screw type opening / closing container of the present invention, when the cap tries to rotate in the opening direction due to vibration or impact applied to the container during distribution, the movement of the ring body is restricted by the movement regulating means, and the connecting portion is connected. The cap body connected to the ring body via the above is also restricted from moving upward. As a result, loosening of the cap and removal of the cap during distribution are prevented. On the other hand, during use, when the cap is rotated in the opening direction, the connecting portion is broken, so that the cap body can be easily opened and closed after opening.

It is a side view which shows a part of the multi-threaded screw type opening and closing container which is a preferable example of this invention, and a part of a cross section. It is a bottom view of the cap in the container of FIG. It is a partial cross-sectional view along the line AA in FIG. FIG. 5 is a side view showing the entire unopened container in which the cap is assembled to the container body in the multi-thread screw type opening / closing container of FIG. FIG. 5 is a side view showing a state in which the cap body is separated from the ring body and the container is opened in the multi-thread screw type opening / closing container of FIG. It is sectional drawing which follows the line BB in FIG. It is sectional drawing which follows the CC line in FIG. It is a side view which shows a part of the multi-threaded screw type opening and closing container of another preferable example of this invention with a part omitted and a part cross section. It is a side view which shows the whole of the multi-thread screw type opening and closing container of FIG. It is a side view which showed the state which the cap main body was removed in the multi-thread screw type opening and closing container of FIG. It is a side view of the multi-thread screw type opening / closing container which concerns on the modification of the preferable example shown in FIG. It is a side view which shows the multi-thread screw type opening and closing container of one Embodiment of this invention in a partial cross section. It is sectional drawing which follows the DD line in FIG. It is sectional drawing which follows the line EE in FIG. It is sectional drawing which follows the FF line in FIG. It is a side view which shows the state of assembling a cap to a container body in a partial cross section in the multi-thread screw type opening and closing container shown in FIG. FIG. 2 is a side view showing a state in which the cap is completely assembled to the container body in the multi-thread screw type opening / closing container shown in FIG. It is a side view which showed the state which the cap body was removed in the multi-thread screw type opening and closing container shown in FIG.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a side view showing a partially omitted and partially cross-sectional view of a multi-threaded screw type opening / closing container (hereinafter, simply referred to as “container”) of a preferred example of the present invention, and FIG. 2 is a side view of the container of FIG. It is a bottom view of the cap, and FIG. 3 is a cross-sectional view taken along the line AA in FIG.

The container 10 shown in FIG. 1 is a jar container used for storing cosmetics and the like. The container mainly includes a container body 12 that forms a storage space U for the contents, and a cap 14 that closes the storage space U of the container body 12.

The container body 12 has a tubular mouth portion 16 and a bottomed tubular body portion 18 extending downward from the mouth portion 16. A plurality of threaded portions (male threaded portions) 16a are spirally formed on the outer peripheral surface of the mouth portion 16. Each of the threaded portions 16a has the same lead angle, and is formed at intervals around the axis O.

The body portion 18 is composed of a side wall portion 18a and a bottom wall portion 18b, and the corners where they intersect are rounded, making it easy to remove the contents. Further, an annular skirt wall 20 having a lower end thereof as a ground contact portion is formed on the outside of the side wall portion 18a of the body portion 18.

The cap 14 has a ring body 26 connected to the cap body 22 and the cap body 22 via a breakable connecting portion 24. A plurality of threaded portions (female threaded portions) 30a are formed on the inner peripheral surface of the peripheral wall 30 hanging from the top wall 28 of the cap body 22. Each of the screw portions 30a has the same lead angle, and is formed at intervals around the axis O. As a result, the cap body 22 can be fastened to the mouth 16 of the container body 12 by rotating the cap body 22 in the closing direction around the axis O with respect to the mouth 16 of the container body 12. An annular recess 28a on which the skirt wall 20 of another container 10 shown by a virtual line in the drawing is placed is formed on the outer peripheral edge of the upper surface of the top wall 28 of the cap body 22. As a result, the containers 10 can be stably stacked.

The connecting portion 24 is formed of a thin wall, a plurality of narrow bridge pieces, a weakened wall in which perforations, etc. are formed, or the like, which breaks when a constant force is applied in the axis O direction. The figure shows an example in which a bridge piece is used as the connecting portion 24.

The ring body 26 is arranged above the skirt wall 20 so as to surround the side wall portion 18a of the body portion 18, and its inner diameter is formed to be smaller than the outer diameter of the skirt wall 20. The ring body 26 is configured so that once assembled to the container body 12, it cannot be pulled out upward by the movement restricting means.

In the example shown in FIG. 1, the movement restricting means is provided at the annular overhanging portion 32 projecting outward in the radial direction at the upper end portion of the body portion 18 adjacent to the mouth portion 16 and at the corresponding inner surface positions of the ring body 26. It is composed of a projecting piece 34 projecting inward in the radial direction. As shown in FIG. 2, the projecting piece 34 is intermittently formed around the axis O, separated by a slit 36 extending in the radial direction, and is in a state after molding, that is, before the cap 14 is assembled to the container body 12. In the state of, the inner end in the radial direction faces downward as shown by a virtual line in FIG. 3, and the inner end in the radial direction faces upward by overhanging the overhanging portion 32 when assembling the cap 14 to the container body 12. It is in a state where it can be locked with the lower surface of the portion 32.

FIG. 4 is a side view showing the entire container 10 in an unopened state in which the cap 14 is assembled to the container body 12. In the unopened state, when the cap 14 tries to rotate in the opening direction due to vibration or impact applied to the container 10 during distribution, the projecting piece 34 is locked to the lower surface of the overhanging portion 32, so that the cap 14 is moved upward of the ring body 26. The movement of the cap body 22 connected to the ring body 26 via the connecting portion 24 is also restricted from moving upward. As a result, loosening of the cap and removal of the cap during distribution are prevented. On the other hand, when the cap 14 is rotated in the opening direction during use, the connecting portion 24 is broken as shown in FIG. 5, so that the cap body 22 can be easily opened and closed after opening. Since the inner diameter of the ring body 26 is smaller than the outer diameter of the skirt wall 20, the ring body 26 separated from the cap body 22 and dropped does not pass through the skirt wall 20 and stays on the upper surface of the skirt wall 20.

Further, according to the container of this preferred example , the projecting piece 34 has its radial inner end facing downward after molding, but its radial inner end faces upward when assembled to the container body 12, and the overhanging portion 32 Since the cap 14 can be locked with the lower surface of the container body 12, the cap 14 can be easily assembled to the container body 12.

Once the container 10 is opened, the ring body 26 is separated from the cap body 22 and remains on the container body 12 side, so that the function of preventing the cap from loosening or coming off is lost. Therefore, in order to obtain a certain degree of loosening suppressing effect of the cap body 22 even after opening, the mouth portion 16 of the container body 12 may be provided with a convex portion 38 as shown in FIG. FIG. 6 is a cross-sectional view taken along the line BB in FIG. By rotating the cap 14 with respect to the container body 12 in the closing direction around the axis O, the convex portion 38 rides on the threaded portion 30a of the cap 14, and the loosening of the cap is suppressed. The convex portion 38 cannot escape from riding on the screw portion 30a unless the cap body 22 is loosened with a constant force.

Further, as shown in FIGS. 3 and 7, the container body 12 may be provided with a sound producing diaphragm 42 at the upper end of the body 18. FIG. 7 is a cross-sectional view taken along the line CC in FIG. As shown in FIGS. 5 and 7, a plurality of ribs 44 that get over the diaphragm 42 as the cap body 22 is screwed are formed at the lower end of the inner peripheral surface of the peripheral wall 30 of the cap body 22 at intervals around the axis O. Has been done. As a result, a click sound (click feeling) can be generated at regular intervals as the cap body 22 is screwed.

FIG. 8 is a side view showing a container of another preferred example of the present invention partially omitted and a partial cross section, FIG. 9 is a side view showing the entire container, and FIG. 10 is a cap in the container. It is a side view which showed the appearance which the main body was removed. The same members or parts as those described in the above preferred example are designated by the same reference numerals, and the description thereof will be omitted as appropriate.

In this preferred example , the ring body 26 is formed in a shape and dimensions that cover the upper outer surface of the skirt wall 20. A breakable connecting portion 24 is integrally formed between the lower end of the cap body 22 and the upper end of the ring body 26.

In this preferred example , the movement restricting means is formed at the corresponding inner surface positions of the ring body 26 and the annular recess 46 formed on the outer surface of the skirt wall 20, and is annular at the final assembly position of the cap 14 with respect to the container body 12. It is composed of an annular convex portion 48 that fits into the concave portion 46. The shapes and dimensions of the annular recess 46 and the annular recess 48 are set so that a fitting force greater than the force required to break the connecting portion 24 can be obtained. As a result, the ring body 26 is immovably held by the skirt wall 20 even if vibration or impact is applied during distribution, and the cap is prevented from loosening or coming off. On the other hand, when the cap body 22 is rotated in the opening direction during use, the connecting portion 24 is broken as shown in FIG. 10, so that the cap body 22 can be easily opened and closed after opening. The ring body 26 stays on the skirt wall 20 by the annular recess 46 and the annular protrusion 48.

FIG. 11 is a side view of the container according to the modified example of the preferred example shown in FIGS. 8 to 10. In this modification, the lower end edge of the ring body 26 is formed in a deformed shape other than flat. In the illustrated example, the lower end edge of the ring body 26 is formed in a wavy shape. By changing the shape of the lower end edge of the ring body 26 in this way, the design of the container 10 can be improved. The shape of the lower end edge of the ring body 26 is not limited to this, and may be, for example, a shape in which a plurality of arches are continuous, a sawtooth shape, or the like.

Figure 12 is a side view showing a container of an embodiment of the present invention in partial cross-section, FIG. 13 is a sectional view taken along the line D-D in FIG. 12, FIG. 14, E in FIG. 12 FIG. 15 is a cross-sectional view taken along the line −E, and FIG. 15 is a cross-sectional view taken along the line FF in FIG. The same members or parts as those described in the above preferred example are designated by the same reference numerals, and the description thereof will be omitted as appropriate.

In this embodiment, the movement restricting means is formed on the inner surface of the ring body 26 with a rib-shaped protrusion 50 formed along the circumferential direction and on the outer surface of the skirt wall 20, and engages with the protrusion 50 in the upward axial direction. It is composed of a lateral groove 52. At least one set of the protrusion 50 and the lateral groove 52 may be provided, but in the embodiment, two sets are provided at positions facing the axis O. The shape of the cross section (longitudinal cross section) of the lateral groove 52 along the axis O direction is substantially equal to the cross section of the protrusion 50 along the axis O direction.

Further, the skirt wall 20 is formed with a guide recess 54 extending in the direction along the threaded portion 16a of the container body 12 and guiding the protrusion 50 to the lateral groove 52 when the cap 14 is assembled to the container body 12. The guide recess 54 is provided for each lateral groove 52. The depth of the induction recess 54 can be the same as the depth of the lateral groove 52.

The lateral groove 52 is connected to the guide recess 54 at an intermediate portion between the first end portion 52a on the front side in the tightening direction of the cap 14 and the second end portion 52b on the rear side. The protrusion 50 is located at the first end 52a at the final assembly position of the cap 14 with respect to the container body 12. The lateral length (length along the circumferential direction) of the first end portion 52a is substantially equal to the length of the protrusion 50.

The distance between the protrusion 50 and the threaded portion 30a of the cap 14 along the axis O direction is set to be slightly smaller than the distance along the axis O direction between the lateral groove 52 and the threaded portion 16a of the container body 12. .. As a result, tension is generated in the connecting portion 24 while the protrusion 50 is located at the first end portion 52a of the lateral groove 52.

The lateral groove 52 is continuously formed from the first end portion 52a to the second end portion 52b along the peripheral surface of the skirt wall 20, and the protrusion 50 is formed with the opening operation of the cap 14 and the first end portion 52a. It is possible to move from the position of to the position of the second end portion 52b. The protrusion 50 also engages with the lateral groove 52 in the upward direction of the axis even at the position of the second end portion 52b.

In this embodiment, the protrusion 50 is restricted from entering the guide recess 54 in the process of moving the protrusion 50 from the position of the first end 52a to the position of the second end 52b. The entry control protrusion 56 is formed. The entry control protrusion 56 is arranged at the end of the guide recess 54, and has a gentle slope 56a facing upward and a slope larger than the gentle slope 56a facing downward in the cross section along the axis O direction shown in FIG. Has a steep slope 56b (including vertical). The protrusion 50 moves in the guide recess 54 when the cap 14 is assembled to the container body 12, and can get over the gentle slope 56a in the moving process, but cannot get over the steep slope 56b in the opposite direction.

Further, in the lateral groove 52, after the protrusion 50 has once moved from the position of the first end portion 52a to the position of the second end portion 52b, a return that restricts the return of the protrusion 50 to the position of the first end portion 52a is restricted. The regulation protrusion 58 is formed. As shown in FIG. 15, the return restricting protrusion 58 has a gentle slope 58a facing the first end 52a side and a slope larger than the gentle slope 58a facing the second end 52b side in a cross section orthogonal to the axis O. It has a steep slope 58b (including vertical). The protrusion 50 can get over the gentle slope 58a in the process of moving from the position of the first end portion 52a to the position of the second end portion 52b, but cannot get over the steep slope 58b in the opposite direction.

As shown in FIG. 12, in this embodiment, the lower end edge of the ring body 26 is formed in a deformed shape other than flat, and the protrusion 50 is located on the outer surface of the skirt wall 20 at the first end portion 52a of the lateral groove 52. When this is done, it matches the irregular shape of the ring body 26, but when the protrusion 50 is located at the second end 52b of the lateral groove 52, a pattern deviating from the irregular shape is formed. In the illustrated example, the lower end edge of the ring body 26 is formed in a wavy shape. The skirt wall 20 is formed with a wavy shallow groove 60 that coincides with the wavy lower end edge of the ring body 26 when the protrusion 50 is located at the first end 52a of the lateral groove 52.

In the container configured as described above, when the cap 14 is assembled to the container body 12, as shown in FIG. 16, the cap 14 is placed on the container body 12 so that the protrusion 50 coincides with the inlet of the induction recess 54. Temporarily set. When the cap 14 is rotated in the closing direction from this state, as shown in FIG. 17, the screw portion 30a of the cap body 22 is screwed into the screw portion 16a of the container body 12, and the cap 14 moves downward while rotating. .. Along with this, the protrusion 50 formed on the inner surface of the cap body 22 also moves toward the lateral groove 52 of the guide recess 54, and overcomes the entry restricting protrusion 56 formed at the end of the guide recess 54 to get over the first lateral groove 52. Entering the end portion 52a, the assembly of the cap 14 is completed. In this state, when the cap 14 tries to rotate in the opening direction due to vibration or impact applied to the container during distribution, the protrusion 50 is locked in the lateral groove 52, so that the movement of the ring body 26 upward is restricted. The cap body 22 connected to the ring body 26 via the connecting portion 24 is also restricted from moving upward. As a result, loosening of the cap and removal of the cap during distribution are prevented.

On the other hand, when the cap 14 is rotated in the opening direction during use, the protrusion 50 moves in the lateral groove 52 from the position of the first end portion 52a to the position of the second end portion 52b, as shown in FIG. At this time, since the entry control protrusion 56 formed at the end of the guide recess 54 restricts the protrusion 50 from entering the guide recess 54, the protrusion 50 does not re-enter the guide recess 54 and the lateral groove 52. Moves to the position of the second end 52b of. By the time the protrusion 50 moves to the position of the second end portion 52b, the cap body 22 largely moves upward via the screw portions 16a and 30a, and a sufficient tensile force is applied to the connecting portion 24, so that the connecting portion 24 Is broken and the cap body 22 is separated from the ring body 26.

Therefore, the container of this embodiment can also prevent the cap from loosening and the cap from coming off during distribution. In addition, the cap body 22 can be easily opened and closed after opening.

Further, according to the container of this embodiment, since the connecting portion 24 is configured to generate tension while the protrusion 50 is located at the first end portion 52a of the lateral groove 52, the ring body is in an unopened state. A sufficient locking force can be generated between the 26 and the container body 12 to more reliably prevent the cap 14 from rotating during distribution.

Further, according to the container of this embodiment, after the protrusion 50 has once moved from the position of the first end portion 52a to the position of the second end portion 52b in the lateral groove 52, the first end portion 52a of the protrusion 50 Since the return regulating protrusion 58 that regulates the return to the position is formed, it is possible to determine whether or not the container has been opened once by the position of the protrusion 50.

Further, according to the container of this embodiment, when the lower end edge of the ring body 26 is formed in a wavy shape and the protrusion 50 is located on the outer surface of the skirt wall 20 at the first end portion 52a of the lateral groove 52, the ring is formed. Whether or not the container 10 has been opened once because a wave-shaped shallow groove 60 that matches the wave shape of the body 26 but deviates from the wave shape is formed when the protrusion 50 is located at the second end 52b of the lateral groove 52. Can be easily determined based on the coincidence and disagreement between the shape of the lower end edge of the ring body 26 and the shape of the shallow groove 60. The shape of the lower end edge of the ring body 26 and the shape of the shallow groove 60 are not limited to this, and may be, for example, a shape in which a plurality of arches are continuous, a sawtooth shape, or the like. The pattern is not limited to the shallow groove 60, and may be a pattern drawn on a sticker, a label, or the like that can be attached to the surface of the skirt wall 20.

According to the present invention, it is possible to provide a multi-thread screw type opening / closing container capable of preventing the cap from loosening or coming off during distribution while maintaining the ease of opening / closing during use.

10 Multi-threaded screw type container 12 Container body 14 Cap 16 Mouth 18 Body 20 Skirt wall 22 Cap body 24 Connecting part 26 Ring body 32 Overhanging part 34 Projection piece 46 Ring recess 48 Ring convex 50 Projection 52 Horizontal groove 54 Induction recess 56 Entry control protrusion 58 Return control protrusion 60 Shallow groove

Claims (5)

Multi-threaded screw type opening and closing including a container body having a plurality of threaded portions formed on the outer surface of the mouth portion at intervals around the axis, and a cap having a plurality of threaded portions screwed with the threaded portion of the container body. It ’s a container,
The cap has a cap body having the threaded portion formed on the inner surface thereof, and a ring body connected to the lower end of the cap body via a breakable connecting portion.
A movement regulating means for restricting the upward movement of the ring body by locking the outer surface of the container body in the upward direction along the axis is provided .
The movement regulating means comprises a protrusion formed on the inner surface of the ring body and a lateral groove formed on the outer surface of the container body and engaging with the protrusion in the upward direction of the axis.
An induction recess extending in the direction along the threaded portion of the container body and guiding the protrusion to the lateral groove when the cap is assembled to the container body is formed in the container body.
The lateral groove is connected to the induction recess at an intermediate portion between the first end portion on the front side in the tightening direction of the cap and the second end portion on the rear side.
The protrusion is located at the first end at the final assembly position of the cap with respect to the container body, and tension is generated at the connecting portion while the protrusion is located at the first end of the lateral groove. A multi-threaded screw type opening / closing container characterized by being configured to be used . The protrusion moves from the position of the first end portion to the position of the second end portion as the cap is opened, and engages with the lateral groove in the axial upward direction at the position of the second end portion. The multi-thread screw type opening / closing container according to claim 1 , wherein the container is characterized by the above. A return regulating protrusion that regulates the return of the protrusion to the position of the first end portion is formed in the lateral groove after the protrusion has once moved from the position of the first end portion to the position of the second end portion. The multi-thread screw type opening / closing container according to claim 1 or 2 , wherein the container is characterized by being In the guide recess, an entry control protrusion that regulates the protrusion from entering the guide recess is formed in the process of moving the protrusion from the position of the first end portion to the second position. The multi-thread screw type opening / closing container according to any one of claims 1 to 3 , characterized in that the container is provided. When the lower end edge of the ring body is formed into a deformed shape other than flat, and the protrusion is located at the first end portion of the lateral groove on the outer surface of the container body, it coincides with the deformed shape of the ring body. However, the multiple according to any one of claims 1 to 4 , wherein a pattern deviating from the deformed shape is formed when the protrusion is located at the second end portion of the lateral groove. Threaded opening and closing container.

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