JP2019014514A - cap - Google Patents

Abstract

To prevent damage to a first closing stopper by absorbing the shock when the first closing stopper abuts against a second closing stopper when a lid is turned in a closing direction with an excessive force.SOLUTION: A cap having an inner plug attached to a container and a screw-type lid 5 detachably attached to the inner plug, comprising; a first closing stopper 41 is provided on a lid 5, a second closing stopper 52 is provided on the inner plug, a distal end part 41a of the first closing stopper 41 abuts against the second closing stopper 52, whereby the rotation of the lid 5 in the closing direction S is inhibited, a proximal end part 41b of the first closing stopper 41 is attached to an inner periphery of the lid 5, a distal end part 41a of the first closing stopper 41 is positioned radially inward of the proximal end part 41b, and the first closing stopper 41 is inclined so that the proximal end part 41b is retracted from the distal end portion 41a in the closing direction S.SELECTED DRAWING: Figure 8

Description

  The present invention relates to a cap having an inner stopper attached to a container and a screw-type lid that can be attached to and detached from the inner stopper by rotating.

  Conventionally, as this type of cap, for example, as shown in FIGS. 12 to 14, a cap having an inner plug 101 attached to a container and a screw-type lid 102 that can be attached to and detached from the inner plug 101 by rotating. There is. A first closing stopper 103 is provided inside the lid 102, and a second closing stopper 104 is provided on the inner plug 101.

  The first closing stopper 103 is a plate-like member provided on the inner peripheral surface 105 of the lid 102 and protrudes from the inner peripheral surface 105 of the lid 102 toward the center. Further, the second closing stopper 104 protrudes upward from the upper surface of the inner plug 101.

  According to this, when the lid 102 is turned in the closing direction S to be tightened to the inner plug 101 and closed, the first closing stopper 103 of the lid 102 contacts the second closing stopper 104 of the inner plug 101 from the closing direction S. Touch. As a result, the lid 102 is prevented from further turning in the closing direction S, and an excessive closing operation can be prevented.

  Further, as a cap other than the caps shown in FIGS. 12 to 14, in Patent Document 1 below, a notch portion (6) is formed on the peripheral wall end surface of the cap portion (4) of the lid (2). A sealed container is described in which a build-up portion (12) is formed at the neck base of the container body (5), and a notch (13) is formed in the build-up portion (12).

  According to this, when the lid (2) is turned in the closing direction S and screwed into the neck (6) of the container body (5) to be tightened and closed, the notch (6) of the lid (2) is closed. From the direction S, it contacts the notch (13) of the container body (5). This prevents the lid (2) from being rotated further in the closing direction S.

Japanese Patent No. 3733368

  However, in the conventional system shown in FIG. 13, when the lid 102 is turned in the closing direction S with an excessive force, the first closing stopper 103 may be damaged as shown by the phantom line in FIG.

  Moreover, in the thing of the said patent document 1, when a cover body (2) is rotated in the closing direction S with an excessive force, the notch part (6) of a cover body (2) will be the notch part (13) of a container main body (5). There is a problem that it is difficult to relieve the impact when it comes into contact.

  In the present invention, when the lid is rotated in the closing direction with an excessive force, the impact when the first closing stopper of the lid comes into contact with the second closing stopper of the inner plug is reduced, and the first closing stopper An object is to provide a cap capable of preventing damage.

In order to achieve the above object, the first invention is a cap having an inner stopper attached to a container and a screw-type lid that can be attached to and detached from the inner stopper by rotating.
A first closing stopper is provided on the lid;
A second closing stopper is provided on the inner plug,
When the tip of the first closing stopper contacts the second closing stopper, rotation of the lid in the closing direction is prevented,
The base end of the first closing stopper is attached to the inner periphery of the lid,
The distal end portion of the first closing stopper is located on the inner side in the radial direction than the proximal end portion,
The first closed stopper is inclined so that the proximal end portion of the first closed stopper is retracted from the distal end portion in the closing direction.

  According to this, when the lid is turned by closing it in the closing direction, the tip of the first closing stopper comes into contact with the second closing stopper from the closing direction, thereby preventing the lid from being turned further in the closing direction. Excessive closing operation can be prevented.

  Further, when the lid is rotated in the closing direction with an excessive force, the first closing stopper becomes radially inward when the tip of the first closing stopper comes into contact with the second closing stopper from the closing direction. Therefore, the impact when the first closed stopper comes into contact with the second closed stopper is reduced, and damage to the first closed stopper can be prevented.

  In the cap according to the second aspect of the invention, the tip of the first closing stopper has a tapered shape.

  According to this, when the tip of the first closed stopper comes into contact with the second closed stopper, the contact area between the tip of the first closed stopper and the second closed stopper is narrow, so the surface of the contact portion When the pressure increases, and the first closing stopper becomes radially inward, it is possible to prevent the tip of the first closing stopper from being displaced from the second closing stopper.

  In the cap according to the third invention, the material of the first closing stopper is harder than the material of the second closing stopper.

  According to this, when the tip of the first closed stopper having a tapered shape comes into contact with the second closed stopper, the tip of the first closed stopper bites into the second closed stopper. When the closing stopper is inward in the radial direction, the tip of the first closing stopper can be prevented from being detached from the second closing stopper. Thereby, the impact when the first closing stopper comes into contact with the second closing stopper can be surely reduced, and damage to the first closing stopper can be prevented.

  In the cap according to the fourth aspect of the present invention, the first closing stopper can be located radially inward when the tip end thereof abuts against the second closing stopper.

In the cap according to the fifth invention, the lid has a top plate portion and a cylindrical skirt portion suspended from the outer peripheral edge of the top plate portion,
A cylindrical part is provided on the radially inner side of the skirt part,
The base end of the first closing stopper is attached to the inner periphery of the skirt,
The tip portion of the first closing stopper is opposed to the outer peripheral surface of the cylindrical portion with a predetermined gap from the radially outer side,
When the first closing stopper is broken, the first closing stopper can come into contact with the outer peripheral surface of the cylindrical portion.

  According to this, in the state where the tip of the first closing stopper is in contact with the second closing stopper from the closing direction, an excessive force in the closing direction exceeding the assumption acts on the first closing stopper, When the bending amount (deformation amount) of the first closing stopper inward in the radial direction exceeds the assumed amount, the first closing stopper is brought into contact with the outer peripheral surface of the cylindrical portion, so that the first closing stopper is deformed. The amount of deformation (the amount of deformation) is limited. As a result, the first closing stopper can be prevented from becoming excessive (deformed), and the first closing stopper can be prevented from being bent excessively.

  As described above, according to the present invention, when the lid is rotated in the closing direction with an excessive force, the impact when the first closing stopper of the lid comes into contact with the second closing stopper of the inner plug is reduced. 1. Damage to the closed stopper can be prevented

It is a longitudinal cross-sectional view of the cap in the 1st Embodiment of this invention. It is a partially cutaway front view of the inner cap of the cap. It is a top view of the inner cap of the cap. It is a longitudinal cross-sectional view of a cap and shows a state where the cap is opened. It is a longitudinal cross-sectional view of the lid of the cap. It is a XX arrow line view in FIG. It is XX arrow line view (cross-sectional view of a cap) in FIG. FIG. 4 is an enlarged cross-sectional view of first and second closing stoppers of the cap. FIG. 4 is an enlarged cross-sectional view of first and second closing stoppers of the cap. It is an expansion cross-sectional view of the 1st closed stopper of the cap in the 2nd Embodiment of this invention. It is an expanded cross-sectional view of the 1st closing stopper of the cap in the 3rd Embodiment of this invention. It is a bottom view of the lid | cover of the conventional cap. It is a partially cutaway top view of the cap. FIG. 4 is an enlarged cross-sectional view of first and second closing stoppers of the cap.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
(First embodiment)
In the first embodiment, as shown in FIG. 1, reference numeral 1 denotes a cap, an inner plug 4 attached to the mouth 3 of the container 2, and a screw-type lid that can be attached to and detached from the inner plug 4 by rotating. 5. The axial direction A of the cap 1 is defined as the vertical direction, the direction perpendicular to the axial center 6 of the cap 1 is defined as the radial direction B, and the circumferential direction centering on the axial center 6 is defined as the circumferential direction C.

  As shown in FIGS. 1 to 3, the inner plug 4 includes a pedestal portion 10 fitted into the mouth portion 3, a cylindrical peripheral wall portion 11 protruding upward from the pedestal portion 10, and an upper side from the inside of the peripheral wall portion 11. It has a protruding cylindrical pouring cylinder 12 and a detaching portion 13 provided inside the pouring cylinder 12.

  A male screw 15 is formed on the outer peripheral surface of the peripheral wall portion 11. The separation part 13 is a cylindrical member whose upper end is closed, is surrounded by a thin weakened part 16 whose bottom part can be broken, and is supported by the dispensing cylinder 12 via the weakened part 16. . As shown in FIG. 4, when the weakened portion 16 is broken and the detaching portion 13 is detached from the inner plug 4, a spout 17 is formed in the dispensing tube 12.

  As shown in FIGS. 5 and 6, the lid 5 includes a circular top plate portion 25, a cylindrical skirt portion 26 suspended from the outer peripheral edge of the top plate portion 25, a cylindrical tube portion 27, and a cylindrical shape. It has a seal part 28 and a cylindrical holding part 29. The cylindrical portion 27, the seal portion 28, and the holding portion 29 are provided on the top plate portion 25 on the radially inner side of the skirt portion 26, and are arranged concentrically around the axis 6. The cylinder portion 27 is located on the radially inner side of the skirt portion 26, the seal portion 28 is located on the radially inner side of the cylinder portion 27, and the holding portion 29 is located on the radially inner side of the seal portion 28.

On the inner peripheral surface of the cylindrical portion 27, a female screw 32 that is screwed into the male screw 15 of the inner plug 4 is provided.
A plurality of first engaging protrusions 34 are formed on the inner peripheral surface of the holding portion 29. These first engaging protrusions 34 protrude radially inward from the inner peripheral surface of the holding portion 29, and are formed at predetermined angles (for example, 60 °) in the circumferential direction C.

  As shown in FIGS. 2 and 3, a plurality of second engagement protrusions 35 are formed on the outer peripheral surface of the detaching portion 13 of the inner plug 4. These second engaging protrusions 35 protrude radially outward from the outer peripheral surface of the detachable portion 13, and are formed in the circumferential direction C at predetermined angles (for example, 60 °).

  As shown in FIG. 1, the detached portion 13 of the inner plug 4 enters the holding portion 29 of the lid 5 from below while the lid 5 is plugged into the inner plug 4 and attached. When the lid 5 is rotated in the opening direction O in this state, the first engaging protrusion 34 is engaged with the second engaging protrusion 35 in the opening direction O and the lid 5 is rotated as shown in FIG. Rotational torque acts on the detachment portion 13 via the first and second engaging protrusions 34 and 35, and the weakening portion 16 is broken by this rotational torque.

  As shown in FIGS. 5 to 7, a plurality of first closing stoppers 41 are provided on the inner peripheral surface of the skirt portion 26 of the lid 5. As shown in FIGS. 2 and 3, a plurality of second closing stoppers 52 are provided on the upper surface of the base portion 10 of the inner plug 4. As shown in FIG. 7, when the lid 5 is rotated a predetermined number of times in the closing direction S, the tip 41a of the first closing stopper 41 abuts against the second closing stopper 52, so that the closing direction S of the lid 5 is reached. Is prevented from rotating.

  As shown in FIGS. 6 to 8, the first closing stopper 41 is a thin plate-like member that can be elastically deformed. A plurality (for example, two) of the first closing stopper 41 is provided at a predetermined angle (for example, 180 °) in the circumferential direction C. Is formed. The base end portion 41 b of the first closing stopper 41 is integrally attached to the inner peripheral surface of the skirt portion 26. Further, the distal end portion 41a of the first closing stopper 41 is located on the inner side in the radial direction B than the proximal end portion 41b.

  In the closing direction S, the first closing stopper 41 is inclined so that the proximal end portion 41b is retracted from the distal end portion 41a. That is, as shown in FIG. 6, the first closing stopper 41 is inclined at a predetermined angle α with respect to the straight line 43 in the radial direction B passing through the shaft center 6 and the base end portion 41 b of the first closing stopper 41. ing. The predetermined angle α is an acute angle larger than 0 ° and smaller than 90 °. Moreover, the front-end | tip part 41a of the 1st closed stopper 41 is sharply pointed like a mountain shape as an example of a tapering shape, and the predetermined clearance 45 is opened from the radial direction outer side, and the outer peripheral surface of the cylinder part 27 is opposed. Yes.

  The gap 45 between the tip end portion 41a of the first closing stopper 41 and the outer peripheral surface of the cylindrical portion 27 is formed over the entire height of the first closing stopper 41 in the axial direction A.

  As shown in FIGS. 2 and 3, the second closing stopper 52 protrudes upward from the upper surface of the pedestal portion 10, and a plurality (for example, two) of the second closing stopper 52 is provided at predetermined angles (for example, 180 °) in the circumferential direction C. Is formed.

  The material of the first closing stopper 41 is harder than the material of the second closing stopper 52. For example, polypropylene or the like is used as the material of the first closing stopper 41, and polyethylene or the like is used as the material of the second closing stopper 52. It is used.

  Hereinafter, the operation of the above configuration will be described.

  As shown in FIG. 1, when the container 2 is opened after the unused cap 1 is attached to the mouth 3 of the container 2, the lid 5 is turned in the opening direction O as shown in FIG. Remove from 4. At this time, as shown in FIG. 7, the first engaging protrusion 34 is engaged with the second engaging protrusion 35 in the opening direction O, and the rotational torque when the lid 5 is rotated is the first and second rotation torques. Since the weakening portion 16 is broken by this rotational torque and the separation portion 13 is detached from the inner plug 4 by acting on the separation portion 13 via the engagement protrusions 34 and 35, as shown in FIG. A spout 17 is formed therein. Thereby, the contents such as the liquid in the container 2 can be poured out from the spout 17.

  In addition, when the lid 5 is removed from the inner plug 4 as described above, the detachment portion 13 detached from the inner plug 4 is held in the holding portion 29 of the lid 5.

  Thereafter, by turning the lid 5 in the closing direction S a predetermined number of times, the female screw 32 of the lid 5 is screwed into the male screw 15 of the inner plug 4, and the lid 5 is fastened to the inner plug 4, as shown in FIG. The seal portion 28 is in close contact with the inner peripheral surface of the tip end portion of the dispensing cylinder 12 over the entire circumference and is closed.

  At this time, as shown by the solid line in FIG. 7 and the solid line in FIG. 8, the front end portion 41 a of the first closing stopper 41 comes into contact with the end surface 52 a of the second closing stopper 52 from the closing direction S. Further turning in the closing direction S is prevented, and an excessive closing operation can be prevented.

  Further, when the lid 5 is rotated in the closing direction S with an excessive force, when the tip 41a of the first closing stopper 41 comes into contact with the end surface 52a of the second closing stopper 52 from the closing direction S, FIG. As indicated by the phantom line, since the first closing stopper 41 is in the radial inner side D, the impact when the first closing stopper 41 comes into contact with the second closing stopper 52 is reduced, and the first closing stopper 41 Damage to the stopper 41 can be prevented.

  Furthermore, when the tip 41 a of the first closing stopper 41 abuts on the end surface 52 a of the second closing stopper 52 as described above, the tip 41 a of the first closing stopper 41 becomes the second closing stopper 52. In order to bite into the end face 52a, when the first closing stopper 41 becomes the radially inner side D as shown by the phantom line in FIG. 8, the tip 41a of the first closing stopper 41 becomes the second closing stopper. It is possible to prevent separation from the end surface 52a of 52. Thereby, the impact when the first closing stopper 41 comes into contact with the second closing stopper 52 can be surely reduced.

  Since the material of the first closing stopper 41 is harder than the material of the second closing stopper 52, when the tip 41a of the first closing stopper 41 abuts against the end surface 52a of the second closing stopper 52, The front end portion 41 a of the first closed stopper 41 can be surely bitten into the end surface 52 a of the second closed stopper 52.

  Further, as described above, in a state where the tip 41a of the first closing stopper 41 is in contact with the end surface 52a of the second closing stopper 52 from the closing direction S, as shown by the phantom line in FIG. When an excessive force in the closing direction S exceeding the assumption acts on the closing stopper 41 and the bending amount (deformation amount) of the first closing stopper 41 toward the radially inner side D exceeds the assumed amount, The amount of bending (deformation) of the first closing stopper 41 is limited by the contact of the one closing stopper 41 with the outer peripheral surface of the cylindrical portion 27. As a result, the first closing stopper 41 can be prevented from becoming excessive (deformed), and the first closing stopper 41 can be prevented from being bent too much.

Since the first closing stopper 41 has elasticity, the first closing stopper 41 does not come into contact with the second closing stopper 52 by turning the lid 5 in the closing direction S as described above. Then, when the lid 5 is opened in the opening direction O, the tip 41a of the first closing stopper 41 is separated from the end surface 52a of the second closing stopper 52 in the opening direction O, 1 closed stopper 41 returns from the broken state to the original state.
(Second and third embodiments)
In the first embodiment described above, the tip 41a of the first closing stopper 41 is sharply pointed in a mountain shape as an example of a tapered shape, but as another example of the tapered shape, the following second, third, The embodiment of this is mentioned.

  In the second embodiment, as shown in FIG. 10, the tip 41a of the first closing stopper 41 has a tapered mountain shape, but the tip is not sharply pointed but rounded. Yes.

  Even in such a shape, when the tip 41a of the first closing stopper 41 abuts against the end surface 52a of the second closing stopper 52, the tip 41a of the first closing stopper 41 is not closed. It bites into the end surface 52a of the stopper 52.

  Moreover, in 3rd Embodiment, as shown in FIG. 11, the front-end | tip part 41a of the 1st closing stopper 41 is a tapered semicircle shape. According to this, when the front end portion 41 a of the first closing stopper 41 comes into contact with the end surface 52 a of the second closing stopper 52, the leading end portion 41 a of the first closing stopper 41 and the end surface 52 a of the second closing stopper 52. Since the contact area of the first closed stopper 41 is changed to the radially inner side D, the tip end portion 41a of the first closed stopper 41 is in the second position. It is possible to prevent deviation from the end face 52a of the closed stopper 52.

  In each of the above embodiments, the gap 45 between the tip portion 41a of the first closing stopper 41 and the outer peripheral surface of the cylindrical portion 27 is formed over the entire height of the first closing stopper 41 in the axial direction A. Therefore, the tip portion 41a of the first closed stopper 41 is separated from the outer peripheral surface of the cylindrical portion 27 over the entire height, but the upper portion of the tip portion 41a of the first closed stopper 41 is integrated with the outer peripheral surface of the cylindrical portion 27. In other words, the lower end of the front end portion 41 a of the first closing stopper 41 may be separated from the outer peripheral surface of the cylindrical portion 27.

DESCRIPTION OF SYMBOLS 1 Cap 2 Container 4 Inner plug 5 Lid 25 Top plate part 26 Skirt part 27 Cylinder part 41 1st closing stopper 41a Tip part 41b Base end part 45 Predetermined clearance 52 2nd closing stopper B Radial direction D Radial inner side S Closed direction

Claims (5)

A cap having an inner stopper attached to the container and a screw-type lid that is detachable from the inner stopper by rotating;
A first closing stopper is provided on the lid;
A second closing stopper is provided on the inner plug,
When the tip of the first closing stopper contacts the second closing stopper, rotation of the lid in the closing direction is prevented,
The base end of the first closing stopper is attached to the inner periphery of the lid,
The distal end portion of the first closing stopper is located on the inner side in the radial direction than the proximal end portion,
A cap characterized in that the first closing stopper is inclined so that the proximal end portion of the first closing stopper is retracted from the distal end portion in the closing direction. 2. The cap according to claim 1, wherein the tip of the first closing stopper has a tapered shape. The cap according to claim 2, wherein the material of the first closing stopper is harder than the material of the second closing stopper. The first closed stopper can be radially inward when its tip end abuts on the second closed stopper, according to any one of claims 1 to 3. The described cap. The lid has a top plate portion and a cylindrical skirt portion depending from the outer peripheral edge of the top plate portion,
A cylindrical part is provided on the radially inner side of the skirt part,
The base end of the first closing stopper is attached to the inner periphery of the skirt,
The tip portion of the first closing stopper is opposed to the outer peripheral surface of the cylindrical portion with a predetermined gap from the radially outer side,
The cap according to claim 4, wherein when the first closing stopper is broken, the first closing stopper can come into contact with the outer peripheral surface of the cylindrical portion.

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