JP6681285B2 - container - Google Patents

Description

  The present invention relates to a container.

  As a container having a child resistance function for preventing accidental ingestion, for example, the containers described in Patent Document 1 and Patent Document 2 are provided. In Patent Document 1, a small cap is screwed into a small diameter portion of a container body, and a large cap having a screw reverse to the small cap is screwed into a large diameter portion of the container body. There is disclosed a structure of a container in which the small cap is not easily opened by engaging with and. Further, in Patent Document 2, a screw thread serving as a reverse screw is provided on the inner peripheral surface of a cap having a small diameter portion and a large diameter portion, and the cap is provided on the outer peripheral surface of a container body having a small diameter portion and a large diameter portion. Disclosed is a container configuration in which a cap is not easily opened by providing a screw thread that meshes with the screw thread and making the interval between the screw threads of the reverse screw of the cap wider than the interval between the screw threads of the reverse screw of the container body. There is.

Japanese Utility Model Publication No. 47-022904 Japanese Utility Model Publication No. 58-038541

However, the conventional techniques described above have the following problems.
The cap itself has a small diameter so that it can be easily gripped by an infant or held in the mouth, and the fitting torque is set to a relatively low value. The child resistance function was not sufficient because the cap may come off by twisting or pulling the container body in a certain direction by hand.

  The present invention has been made in view of the above points, and an object thereof is to provide a container having an enhanced child resistance function.

  According to the first aspect of the present invention, a container body having a shaft-shaped spouting part for accommodating contents and a cap part detachably screwed to the spouting part are provided, and the spouting part is provided. Is a first pouring portion arranged on the tip end side in the axial direction and having a first screw portion formed on the outer peripheral surface around the axis, and a first pouring portion arranged on the base end side in the axial direction. A second screw portion having a second screw portion formed around the shaft on an outer peripheral surface having an outer diameter larger than that of the outer peripheral surface, and the cap portion is a third screw screwed to the first screw portion. A tubular inner cap having a portion on the inner peripheral surface, and a fourth screw portion that is screwed into the second screw portion on the inner peripheral surface, and an outer cap that covers the outer peripheral surface of the inner cap, The inner cap is provided with a plurality of engaging recesses on the outer peripheral surface at intervals in the circumferential direction, and the outer cap has a screw engagement between the fourth screw portion and the second screw portion. Provided is a container having an engaging projection that is inserted into the engaging recess and engages with the inner cap in the circumferential direction when moved to the distal end side in the axial direction in the closed state. It

  Further, in the container according to the aspect of the present invention, the fourth screw portion is divided into a plurality of pieces at intervals in the circumferential direction, and the engagement protrusion is the fourth screw portion divided in the circumferential direction. Is characterized in that.

  Further, in the container according to the aspect of the present invention, the engagement protrusion is a protrusion provided on the inner peripheral surface of the outer cap on the tip side with respect to the fourth screw portion. To do.

  Further, in the container according to the aspect of the present invention, the engaging recess is provided with a retaining portion for preventing the inserted engaging protrusion from the engaging recess.

  Further, in the container according to the aspect of the present invention, a guide portion that guides the insertion of the engagement protrusion into the engagement recess is provided at an end of the inner cap on the base end side. It is characterized by

  Further, in the container according to the aspect of the present invention, the first screw portion and the second screw portion are formed so as to be opposite to each other in a direction around the rotation axis.

  Further, in the container according to the aspect of the present invention, the outer cap penetrates the extension portion extending from the end portion on the distal end side toward the rotation axis and the extension portion in the rotation axis direction. When the inner cap is screwed into the first spout portion and the outer cap is screwed into the second spout portion, the inner cap has an end surface on the tip side. Is engaged with the extending portion.

  The present invention can provide a container having an enhanced child resistance function.

It is a figure which shows embodiment of this invention, Comprising: It is a disassembled perspective view of the container 1. FIG. It is a fragmentary sectional view when the cap part 20 is screwed into the pouring part 30 and is in a closed state. It is a sectional view of the inner cap 60. 1A is a cross-sectional view of the outer cap 70 taken along the line AA of FIG. 1, and FIG. 1B is a cross-sectional view of the outer cap 70 taken along the line BB of FIG. 1. It is a figure which shows the operation | movement which operates the inner cap 60 and the outer cap 70, and opens. It is a figure which shows the operation | movement which operates the inner cap 60 and the outer cap 70, and opens. It is a figure which shows the operation | movement which operates the inner cap 60 and the outer cap 70, and opens. It is a figure which shows the operation | movement which operates the inner cap 60 and the outer cap 70, and opens. It is sectional drawing which shows the inner cap 60 and the outer cap 70 at the time of closure. It is an appearance perspective view showing a modification of inner cap 60.

Hereinafter, an embodiment of the container of the present invention will be described with reference to FIGS. 1 to 10.
The following embodiments show one aspect of the present invention, and do not limit the present invention, and can be arbitrarily modified within the scope of the technical idea of the present invention. Further, in the following drawings, the scale and the number of each structure are different from those of the actual structure in order to make each structure easy to understand.

  FIG. 1 is an exploded perspective view of the container 1. The container 1 is, for example, a container that stores a liquid such as eye drops as a content. The container 1 includes a container body 10 and a cap portion 20. The container body 10 and the cap portion 20 are made of, for example, a resin material.

  The container body 10 has a rectangular parallelepiped housing portion 11 and a shaft-shaped pouring portion 30 provided so as to project from the upper surface (one surface) of the housing portion 11. An inner plug 3 having a spout 2 is fixed to the tip of the spout 30 by, for example, screwing, press fitting, or adhering.

  The pour-out portion 30 includes a first pour-out portion 40 arranged on the tip side in the axis AX direction (hereinafter, simply referred to as a tip end side) and a base end side in the axis AX direction (hereinafter, simply referred to as a base end side). The second pouring unit 50 is disposed in the (name). The first pouring portion 40 is provided on the step portion 45 of the second pouring portion 50. On the outer peripheral surface of the first pouring portion 40, a right-handed first screw portion 41 is formed as a male screw around the axis AX. The outer peripheral surface of the second pouring portion 50 is formed to have an outer diameter larger than the outer diameters of the first pouring portion 40 and the first screw portion 41. On the outer peripheral surface of the second pouring portion 50, a second screw portion 51, which is a left-hand screw that is a reverse screw to the first screw portion 41, is formed as a male screw around the axis AX.

  The cap portion 20 includes an inner cap 60 and an outer cap 70. FIG. 2 is a partial cross-sectional view when the cap portion 20 is screwed into the pouring portion 30 and is in a closed state. FIG. 3 is a cross-sectional view of the inner cap 60. As shown in FIGS. 2 and 3, the inner cap 60 is formed in a cylindrical shape with a lid, and has a lid portion 61 and a cylindrical portion 63. The lid portion 61 closes the tip side of the cylindrical portion 63.

  On the inner peripheral surface of the cylindrical portion 63 of the inner cap 60, a third screw portion 64 that is a female screw that is detachably engaged with the first screw portion 41 of the first pouring portion 40 is formed. A lid portion 61 of the inner cap 60 is provided with a plug portion 62 that projects toward the base end side. The plug portion 62 closes the spout 2 of the inner plug 3 when the third screw portion 64 is screwed into the first screw portion 41 and the inner cap 60 moves to the proximal end side. In the following description, the position of the inner cap 60 (the position shown in FIG. 2) when the plug portion 62 closes the spout 2 is appropriately referred to as the closed position.

  As shown in FIGS. 1 to 3, a plurality of engaging recesses 65 (four in this embodiment at 90 ° intervals) are provided on the outer peripheral surface of the inner cap 60 (cylindrical portion 63) at intervals in the circumferential direction. Are provided with a predetermined circumference. The engagement recesses 65 are formed between the engagement surfaces 69 in the circumferential direction (see FIG. 1), and are formed closer to the base end side than the engagement surface 66 in the axis AX direction (see FIGS. 2 and 3). ). The base end side of each engagement recess 65 is open. On the bottom surface 67 of each engagement concave portion 65, a retaining portion 68 is formed near the end portion on the base end side so as to project to the outer peripheral side. The maximum outer diameter of the retaining portion 68 is set to a value smaller than the outer diameter of the cylindrical portion 63.

  4A is a cross-sectional view of the outer cap 70 in FIG. 1 taken along line AA, and FIG. 4B is a cross-sectional view of the outer cap 70 in FIG. 1 taken along line BB. As shown in FIGS. 1 to 4, the outer cap 70 includes a cylindrical portion 71 that extends in the axis AX direction and an extending portion 72 that extends from the end portion on the distal end side of the cylindrical portion 71 toward the axis AX. Have The extension portion 72 is formed with an opening portion 73 that penetrates in the axis AX direction. The outer diameter of the opening 73 is smaller than the outer diameter of the outer peripheral surface of the inner cap 60.

  The inner diameter of the cylindrical portion 71 is set larger than the outer diameter of the inner cap 60 (cylindrical portion 63). As shown in FIG. 2, the outer cap 70 covers the inner cap 60 from the tip side. The cylindrical portion 71 of the outer cap 70 covers the outer peripheral surface of the inner cap 60. The cylindrical portion 71 of the outer cap 70 covers the outer peripheral surface of the inner cap 60. The extending portion 72 of the outer cap 70 is engaged with the end surface of the inner cap 60 on the tip side at the closed position. As shown in FIGS. 1 and 4, the outer cap 70 is provided with slits 74 radially extending from the axis AX and extending from the distal end side of the cylindrical portion 71. A plurality of slits 74 are arranged at equal intervals around the axis AX (six at 60 ° intervals in FIG. 1).

  As shown in FIGS. 4A and 4B, the inner peripheral surface of the cylindrical portion 71 is a fourth female thread that is detachably screwed into the second screw portion 51 of the second pouring portion 50. The screw portion 75 is formed. As shown in FIG. 2, the inner diameter of the fourth screw portion 75 is smaller than the outer diameter of the tubular portion 63 and the maximum outer diameter of the retaining portion 68 in the inner cap 60, and the bottom surface 67 of the engagement recess 65 is smaller. It is set to a value larger than the maximum outer diameter. The position of the fourth screw portion 75 on the most distal side in the axis AX direction is the same as when the fourth screw portion 75 and the second screw portion 51 are unscrewed (see FIG. 6, details will be described later). It is a position further to the base end side than the base end side end portion of the inner cap 60 in the position.

  Further, the fourth screw portion 75 has a shape in which a plurality of (in the present embodiment) are divided into four at 90 ° intervals with an interval in the direction around the axis AX. The number of divisions and the division pitch of the fourth screw portion 75 are the same as the number of arrangements and the arrangement pitch of the engagement recesses 65. Each of the divided fourth screw portions 75 constitutes an engaging protrusion 76 that is inserted into the engaging recess 65. The circumferential length W of the engaging convex portion 76 is formed shorter than the circumferential length of the engaging concave portion 65.

  In the container 1 having the above-described configuration, first, the inner cap 60 is mounted inside the outer cap 70, and then the inner cap 60 is screwed into the first pouring portion 40, and then the outer cap 70 is closed. 2 By being screwed into the pouring part 50, the plugged state shown in FIG. 2 is obtained. When mounting the inner cap 60 inside the outer cap 70, the inner cap 60 is press-fitted and inserted into the opening 73 of the outer cap 70 from the distal end side. At this time, the outer cap 70 is formed with the slit 74 extending from the extending portion 72 to the tip end side of the cylindrical portion 71. Therefore, when the inner cap 60 is press-fitted from the opening portion 73, the slit 74 is divided. By elastically deforming a part of the extended portion 72 and the cylindrical portion 71 outward in the radial direction, the inner cap 60 can be mounted inside the outer cap 70 without damaging the outer cap 70.

Next, the operation of operating the inner cap 60 and the outer cap 70 at the closed position shown in FIG. 2 to open the cap will be described with reference to FIGS. 5 to 8.
First, as shown in FIG. 5, for example, the outer peripheral surface of the cylindrical portion 71 is gripped and the outer cap 70 is rotated in the right direction (clockwise direction) about the axis AX with respect to the container body 10. Since the second screw portion 51 with which the fourth screw portion 75 of the outer cap 70 is screwed is a left-hand thread, the outer cap 70 is moved to the tip side in the axis AX direction by rotation in the right direction, and as shown in FIG. The screw engagement between the fourth screw portion 75 and the second screw portion 51 is released.

  At this time, the outer peripheral surface of the inner cap 60 is covered with the outer cap 70, and the outer cap 70 rotates independently of the inner cap 60. Therefore, the inner cap 60 can be directly operated and rotated. In addition, the inner cap 60 does not rotate even if the outer cap 70 is rotated. Therefore, the inner cap 60 does not separate from the first pouring portion 40, and the closed state is maintained.

  When the fourth screw portion 75 and the second screw portion 51 are unscrewed, as shown in FIG. 7, the outer cap 70 is pulled up and moved relative to the container body 10 toward the tip side in the axis AX direction. As a result, as shown in FIG. 8, the divided fourth screw portion 75 of the outer cap 70 is inserted into the engagement concave portion 65 of the inner cap 60 as the engagement convex portion 76. When the engaging protrusion 76 and the engaging recess 65 are displaced from each other in the circumferential direction and the engaging protrusion 76 cannot be inserted into the engaging recess 65, the outer cap 70 is rotated to rotate in the circumferential direction. After correcting the positional deviation, the outer cap 70 may be pulled up to the tip side.

  When the engagement protrusion 76 of the outer cap 70 is inserted into the engagement recess 65, the outer cap 70 is rotated to the left (counterclockwise direction) about the axis AX with respect to the container body 10. At this time, since the engaging convex portion 76 of the outer cap 70 is inserted into the engaging concave portion 65 of the inner cap 60, the engaging convex portion 76 is rotated around the inner cap 60 by the leftward rotation of the outer cap 70. It engages with the engagement surface 69 located on the left side of the direction. By rotating the outer cap 70 to the left around the axis AX while the engagement protrusion 76 is engaged with the engagement surface 69, the inner cap 60 rotates to the left. Further, since a retaining portion 68 that overlaps the engaging protrusion 76 in the axis AX direction is provided on the base end side of the engaging protrusion 76 in the inner cap 60, the retaining cap 68 is provided outside when the outer cap 70 is rotated. Even when the gripping of the cap 70 is released, the engagement protrusion 76 engages with the retaining portion 68, so that the engagement protrusion 76 can be prevented from being separated from the engagement recess 65.

  Since the third screw portion 64 of the inner cap 60 is screwed with the first screw portion 41 of the right screw formed on the first pouring portion 40, the inner cap 60 rotates in the left direction to The cap 60 moves in the direction of the axis AX and the first screw portion 41 and the third screw portion 64 are unscrewed from each other, and the cap portion 20 is opened.

  On the other hand, when the cap portion 20 removed from the container body 10 is used to close the cap, as shown in FIG. 9, even if the inner cap 60 is lowered toward the base end side by its own weight, the engaging convex portion 76 has the engaging convex portion 66. By engaging with the engaging convex portion 76, the state in which the engaging convex portion 76 is inserted into the engaging concave portion 65 is maintained.

  Then, by rotating the outer cap 70 in the right direction with the first pouring portion 40 inserted in the inner space of the inner cap 60, the engaging projection 76 of the outer cap 70 causes the inner cap 60 to move to the right in the circumferential direction. Engages with the engagement surface 69 located at. By rotating the outer cap 70 in the right direction around the axis AX with the engagement convex portion 76 engaged with the engagement surface 69, the inner cap 60 rotates in the right direction and the third screw portion 64 makes the first injection. It is screwed into the first screw portion 41 of the projecting portion 40.

  When the inner cap 60 is rotated to the right and the inner cap 60 reaches the closed position, the outer cap 70 is pushed toward the base end side in the axis AX direction and moved, and the retaining portion 68 is passed over to engage the protrusion. The part 76 is disengaged from the engagement recess 65. When the engaging convex portion 76 separates from the engaging concave portion 65, the fourth screw portion 75 is screwed onto the second screw portion 51 of the second pouring portion 50 by rotating the outer cap 70 to the left around the axis AX. To meet. Rotation of the outer cap 70 to the left proceeds, and as shown in FIG. 2, the extending portion 72 of the outer cap 70 engages with the lid portion 61 of the inner cap 60 in the closed position, whereby the outer cap 70 is closed. The stopper position is reached for 70 as well.

  As described above, in the container 1 according to the present embodiment, the outer cap 70 covers the outer peripheral surface of the inner cap 60 to disable the direct operation of the inner cap 60, and the rotation operation of the outer cap 70 and the outer cap 70 are performed. The cap portion 20 can be opened with respect to the container body 10 by sequentially performing a pulling operation to the tip side in the axis AX direction and a rotating operation of the inner cap 60 via the outer cap 70. In addition, it is difficult to open even when it is held in the mouth, and it has an advanced child resistance function.

  In addition, in the container 1 of the present embodiment, the engagement concave portion 65 is provided with the retaining portion 68, so that even when the grip of the outer cap 70 is released during the rotation operation of the outer cap 70, the engagement convex portion 76 can be formed. It is possible to avoid disengagement from the engagement recess 65. Further, in the container 1 of the present embodiment, since the first screw portion 41 and the second screw portion 51 are formed in opposite directions to each other, for example, when an infant who has just remembered the opening / closing operation of the cap portion is operated. However, it is possible to avoid opening the plug easily.

  Further, in the container 1 of the present embodiment, since the end surface of the inner cap 60 on the tip side is engaged with the extending portion 72 of the outer cap 70 from the base end side in the closed position, the infant's finger or mouth is extended. It is possible to prevent the opening 72 of the projecting portion 72 from being caught easily.

  The preferred embodiment of the present invention has been described above with reference to the accompanying drawings, but it goes without saying that the present invention is not limited to the example. The shapes, combinations, and the like of the constituent members shown in the above-described examples are merely examples, and various changes can be made based on design requirements and the like without departing from the spirit of the present invention.

  For example, in the above-described embodiment, the fourth threaded portion 75 divided in the circumferential direction is exemplified as the engagement convex portion 76, but the present invention is not limited to this configuration, and the fourth circumferential threaded portion 75 is formed on the inner peripheral surface of the outer cap 70. The protrusion may be provided on the tip side of the fourth screw portion 75 separately from the fourth screw portion 75. In the case of adopting this configuration, the position of the protrusion in the axis AX direction is (even when the fourth screw part 75 and the second screw part 51 are unscrewed), and the inner cap 60 in the closed position is It is set at a position closer to the base end side than the base end side end portion. Then, the outer cap 70 is rotated rightward to release the screw engagement between the fourth screw portion 75 and the second screw portion 51, and then the outer cap 70 is pulled up to insert the protrusion into the engagement recess 65. . After that, as described above, by rotating the outer cap 70 to the left, the protrusion engages with the engagement surface 69 of the inner cap 60 and the inner cap 60 can be rotated to open the cap. Therefore, when adopting the configuration in which the protrusion is provided as the engagement protrusion 76, the same operation and effect as when the fourth screw portion 75 is divided as the engagement protrusion 76 described above can be obtained. In addition, it is not necessary to form the fourth screw portion 75 in a divided shape, and the effect of facilitating the manufacturing of the outer cap 70 is obtained.

  Further, as shown in FIG. 10, the inner cap 60 in the above-described embodiment may have a configuration in which a guide portion 65a that guides the insertion of the engagement protrusion 76 into the engagement recess 65 is provided. The guide portion 65a may be, for example, an inclined surface that is formed at the base end side end of each engagement surface 69 and that is inclined in a direction in which the circumferential width of the engagement recess 65 increases as it goes toward the base end side. it can. When the guide portion 65a is provided, the outer cap 70 is rotated to release the screw engagement between the fourth screw portion 75 and the second screw portion 51, and then the outer cap 70 is pulled up to engage the engaging protrusion 76. It is possible to improve the operability when inserting into the engaging recess 65.

  In addition, in the above-described embodiment, the first screw portion 41 and the second screw portion 51 are exemplified as the reverse screws, but the present invention can be applied to screws formed in the same direction.

  Further, in the above-described embodiment, the configuration in which the container 1 is used for accommodating the eye drop is illustrated, but the present invention is not limited to the eye drop, and can be widely applied to a container having a child resistance function such as a detergent, a pesticide, and an adhesive. Is.

  DESCRIPTION OF SYMBOLS 1 ... Container, 10 ... Container main body, 20 ... Cap part, 30 ... Pouring part, 40 ... 1st pouring part, 41 ... 1st screw part, 50 ... 2nd pouring part, 51 ... 2nd screw part, 60 ... Inner cap, 64 ... Third screw part, 65 ... Engagement concave part, 68 ... Retaining part, 70 ... Outer cap, 72 ... Extending part, 73 ... Opening part, 75 ... Fourth screw part, 76 ... Engagement Joint convex part, AX ... axis

Claims (5)

A container body that has a shaft-shaped pouring portion and stores the contents,
A cap portion that is detachably screwed into the pouring portion,
The spout part is a first spout part disposed on the tip side in the axial direction and having a first screw part formed on the outer peripheral surface around the shaft;
A second spout part that is arranged on the proximal end side in the axial direction and has a second screw part formed around the shaft on an outer peripheral surface having an outer diameter larger than that of the outer peripheral surface of the first spout part; ,
The cap portion has a cylindrical inner cap having a third screw portion that is screwed to the first screw portion on an inner peripheral surface, and a fourth screw portion that is screwed to the second screw portion on an inner peripheral surface. And has an outer cap covering the outer peripheral surface of the inner cap,
The inner cap is provided with a plurality of engaging recesses on the outer peripheral surface at intervals in the circumferential direction,
The outer cap is inserted into the engaging recess when the fourth cap and the second screw are disengaged from each other and moves toward the distal end side in the axial direction. have a engageable engaging projection direction,
The fourth screw portion is divided into a plurality of pieces at intervals in the circumferential direction,
The said engaging convex part is the said 4th screw part divided | segmented in the said circumferential direction, The container characterized by the above-mentioned . The container according to claim 1 , wherein the engaging concave portion is provided with a retaining portion for preventing the inserted engaging convex portion from the engaging concave portion. An end of the base end side of the inner cap, according to claim 1 or 2, characterized in that guide portions for guiding the insertion into the engagement recess of the engagement projection is provided container. The container according to any one of claims 1 to 3 , wherein the first screw portion and the second screw portion are formed in directions opposite to each other in the direction around the axis. The outer cap has an extending portion extending from the end portion on the distal end side toward the shaft, and an opening portion penetrating the extending portion in the axial direction,
When the inner cap is screwed into the first spout and the outer cap is screwed into the second spout, the inner cap has an end surface on the front end side that engages with the extension. The container according to any one of claims 1 to 4 , wherein:

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