JP2008080287A - Overcap for aerosol container, and aerosol container with overcap - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an overcap for an aerosol container which prevents an overcap from dislocating from the aerosol container when a residual-gas extracting mechanism pushes a stem down to extract a residual gas in the state that the overcap fits to the aerosol container. <P>SOLUTION: The overcap for the aerosol container 10 has a plurality of guide pillar parts 14, arranged to be projected, which extend along the direction of the central axial line O of the ovecap 10 in the range of the upper part to the lower end of the side of a top board part 11, in the outer peripheral face of a fitting cylindrical part 12 fitting to the aerosol container 20, by being spaced out circumferentially; wherein a crossing ridgeline part 15c, which is formed by the lower-end opened face 15a and the inner peripheral face 15b of a ring member 15, is connected so that it can be extracted in each upper part of the guide pillar parts 14; the ring member 15 is arranged coaxially with the central axial line O, and the inner diameter of the ring member 15 passes the outer end in the diameter direction of the overcap 10 of each guide pillar part 14 and also is equivalent to the diameter of a virtual circle centering on the central axil line O. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an aerosol container overcap and an aerosol container with an overcap.

As an aerosol container with an overcap of this type, an aerosol container having a stem standing in an upward biased state and a spray head attached to the stem, and the aerosol container so as to surround the stem and the spray head A configuration including a fitted aerosol container overcap is known. And in recent years, in the consumer, in order to easily extract the residual gas in the aerosol container after the contents are used up, the overcap for the aerosol container, for example, as shown in Patent Document 1 below, It has been proposed to provide a residual gas venting mechanism that can push down the upper surface of the spray head while the overcap is fitted to the aerosol container.
JP 2002-173185 A

  However, in the conventional overcap for an aerosol container, in the process of using the contents while being repeatedly attached to and detached from the aerosol container, for example, in the overcap, the fitting portion with the aerosol container is deformed or worn, or this cap When the contents of the lower end opening were gradually enlarged and deformed, the fitting force of the overcap to the aerosol container was lower than the initial use. Therefore, even when trying to push down the upper surface of the spray head with the residual gas venting mechanism with the overcap fitted to the aerosol container when the residual gas is withdrawn, the overcap is removed from the aerosol container by the upward biasing force of the stem. There is a risk that the residual gas cannot be extracted using the residual gas venting mechanism.

  The present invention has been made in consideration of such circumstances, and when the overcap is fitted into the aerosol container, the overcap is removed from the aerosol container when the stem is pushed down by the residual gas removal mechanism to extract the residual gas. It is an object to provide an overcap for an aerosol container and an aerosol container with an overcap that can be prevented from coming off.

In order to solve the above problems and achieve such an object, an overcap for an aerosol container of the present invention comprises a stem erected in an upward biased state, and a spray head attached to the stem. An aerosol container overcap that is detachably fitted to the provided aerosol container, the top plate facing the top surface of the spray head in a state fitted to the aerosol container, and an outer peripheral edge of the top plate A fitting cylindrical portion that is vertically installed and whose lower end opening is fitted to the aerosol container; and a residual gas venting mechanism that is provided so as to be able to push down the stem in a state where the overcap is fitted to the aerosol container. The outer peripheral surface of the fitting cylindrical portion is spaced in the circumferential direction from the top to the lower end of the top plate portion in the central axis direction of the overcap. A plurality of guide pillar portions extending in a protruding manner, and intersecting ridge lines formed by the lower end opening surface and the inner peripheral surface of the ring member are removably connected to the respective upper portions of the guide pillar portions. Is arranged coaxially with the central axis, and the inner diameter of the ring member passes through the outer end of each guide column portion in the radial direction of the overcap and has a diameter of a virtual circle centered on the central axis. It is characterized by being equivalent.
In this invention, the inner diameter of the ring member is equal to the diameter of an imaginary circle passing through the outer end of each guide column and centering on the central axis, and the ring member can be removed from the overcap. Therefore, when this guide column is fitted into the ring member removed from the overcap to extract the residual gas, the content of the contents is used while being repeatedly attached to and detached from the aerosol container.For example, the lower end of the overcap Even if the fitting force of the cap to the aerosol container is reduced due to the diameter of the opening expanding compared to the initial use, the lower end opening can be reduced in diameter to increase the fitting force. It becomes possible. Therefore, it is possible to prevent the overcap from being detached from the aerosol container when the residual gas is extracted by pushing down the stem with the residual gas venting mechanism.
In addition, since the ring member is connected to the upper portion of the guide column portion located at the upper portion where the diameter-enlarging deformation hardly occurs in the fitting cylindrical portion, the ring member is expanded in the process of using the contents as described above. It becomes possible to prevent radial deformation, and the above-described effects are surely achieved.
Further, since the intersecting ridge line portion of the ring member is connected to the guide column portion, when the ring member is removed from the guide column portion, it is possible to minimize the burr generated on the inner peripheral surface of the ring member. It becomes possible, and the guide post can be easily fitted into the ring member without being caught.

Here, the guide column part extends from the surface of the top plate part to the lower side in the central axis direction on the outer peripheral surface of the fitting cylindrical part, and extends over the lower end along the central axis direction. The size of the member in the central axis direction may be equal to the distance in the central axis direction between the upper end of the guide column portion and the surface of the top plate portion.
In this case, by providing a ring member on the overcap, it is possible to prevent the ring member from protruding above the surface of the top plate portion and deteriorating the appearance of the overcap.

Further, a cylindrical cover portion having a diameter larger than that of the fitting cylindrical portion is continuously provided at the upper end of the ring member, and the ring member and the guide column portion are surrounded from the outside in the radial direction by the cover portion. Also good.
In this case, the provision of the ring member and the guide post portion on the overcap can further reliably prevent the appearance of the overcap from deteriorating.

  An aerosol container with an overcap according to the present invention includes an aerosol container having a stem erected in an upwardly biased state and a spray head attached to the stem, and the aerosol so as to surround the stem and the spray head. An aerosol container with an overcap provided with an overcap for an aerosol container fitted to the container, wherein the overcap for an aerosol container is the overcap for an aerosol container of the present invention.

  According to the aerosol container overcap and the aerosol container with an overcap according to the present invention, when the overcap is fitted to the aerosol container, the overcap is removed when the stem is pushed down by the residual gas venting mechanism to extract the residual gas. It can prevent coming off from the aerosol container.

  Embodiments of the present invention will be described below with reference to the drawings. An aerosol container 20 to which an aerosol container overcap (hereinafter referred to as “overcap”) 10 according to this embodiment is fitted includes an aerosol container main body in which a stem 22 is erected on an upper end surface 21 in an upwardly biased state. And a spray head 23 having an introduction port to which a stem 22 is fitted. In addition, the aerosol container body has a mounting cup 26 wound around an upper end opening of the container body including a body portion 24 and a shoulder portion 25 provided at the upper end of the body portion 24, and an upper surface of the mounting cup 26. The stem 22 is erected in an upward biased state.

The overcap 10 is suspended from the top plate portion 11, the outer peripheral edge of the top plate portion 11, and the fitting cylindrical portion 12 whose lower end opening is fitted to the upper end portion of the aerosol container 20, and the overcap 10. And the residual gas venting mechanism 13 provided so that the stem 22 can be pushed down.
In the illustrated example, the inner peripheral surface of the lower end opening of the fitting cylindrical portion 12 is fitted to the outer peripheral surface of the mounting cup 26, whereby the overcap 10 is attached to the aerosol container 20 to form an aerosol container with an overcap. Has been.

 In this aerosol container with an overcap, the back surface of the top plate portion 11 faces the top surface of the spray head 23. In the illustrated example, the top plate portion 11 has a circular shape when viewed from above, and the central portion in the radial direction faces the top surface of the spray head 23 on the back surface. Here, in the top view of the aerosol container with an overcap, each radial center part of the top plate part 11 and the fitting cylindrical part 12 and the radial center part of the aerosol container 20 coincide with each other. A virtual straight line connecting the central portions in the radial direction is referred to as a central axis O.

  And in this embodiment, the guide pillar part 14 extended along the said center axis line O direction from the upper part by the side of the top-plate part 11 side to the lower end is provided in the outer peripheral surface of the fitting cylindrical part 12 at the circumferential direction. Multiple protrusions are provided. The guide column portions 14 are formed integrally with the fitting cylindrical portion 12 and are formed on the outer peripheral surface of the fitting cylindrical portion 12 at equal intervals in the circumferential direction. In the illustrated example, eight guide pillar portions 14 are formed. Moreover, the top view shape of each guide pillar part 14 is a convex curved surface shape which protruded in the curved surface shape to radial direction outward from the outer peripheral surface of the fitting cylindrical part 12, as FIG. 2 shows.

  In addition, a cross ridge line portion 15c formed by the lower end opening surface 15a and the inner peripheral surface 15b of the ring member 15 is detachably connected to each upper portion of the guide column portion 14, and the ring member 15 is connected to the central axis line. It is arranged coaxially with O. In the illustrated example, at the upper end of the guide column portion 14, the intersecting ridge line portion 15 c of the ring member 15 is coupled to the outer end in the radial direction of the overcap 10, that is, the protruding top portion 14 a having the convex curved surface shape. The inner diameter of the ring member 15 is equal to the diameter of an imaginary circle that passes through the protruding top portions 14a of the plurality of guide pillar portions 14 and that has the central axis O as the center.

  Furthermore, in this embodiment, the guide column part 14 has its lower end along the central axis O direction from a position away from the surface of the top plate 11 on the outer peripheral surface of the fitting cylindrical part 12 in the central axis O direction. It is extended over. The size of the ring member 15 in the direction of the central axis O is equal to the distance in the direction of the central axis O between the upper end of the guide column 14 and the surface of the top plate 11. Thereby, the inner peripheral surface of the ring member 15 faces the upper outer peripheral surface of the fitting cylindrical portion 12 over the entire region, and the upper end of the ring member 15 is positioned at the same height as the surface of the top plate portion 11. Yes.

  Here, the top plate portion 11 is partitioned with a semicircular pressing plate 16 centered on the central axis O so as to be bent downward around the hinge portion 17, and inside the overcap 10, As shown in FIG. 2, a pair of support plates 18 are provided opposite to each other with the central axis O sandwiched in the radial direction so that the bent pressing plate 16 can pass between the support plates 18. It has been. In the present embodiment, the residual gas venting mechanism 13 is configured by the pressing plate 16, the hinge portion 17, and the support plate 18.

 That is, when the pressing plate 16 is bent downward around the hinge portion 17 and passed between the support plates 18, the pressing plate 16 having a semicircular shape has a pressing end portion 16a side described later on both circumferential ends thereof. The pressing plate 16 is pushed between the side surfaces 18a of the support plates 18 facing each other while pressing the hinge portion vicinity portion 16b connected to each other on the surface 18b of the both support plates 18, thereby supporting the hinge portion vicinity portion 16b and the support portion. At least one of the plates 18 is elastically deformed, and the vicinity of the hinge portion 16b is moved over the side surface 18a to reach the back surface 18c side, thereby being hooked on the back surface 18c. Thereby, the movement of the pressing plate 16 in the direction opposite to the bent direction is restricted, and the pressing plate 16 is positioned on the opposite side of the hinge portion 17 with the overcap 10 fitted to the aerosol container 20. The end portion 16 a pushes down the upper surface of the spray head 23.

 In addition, the hinge part 17 is made into the recessed part extended along the straight line which passes along the said center axis line O and the both peripheral edge parts of the press board 16 made into the semicircle shape in the back surface of the top-plate part 11. FIG. Further, the outer peripheral edge of the pressing plate 16 before being bent is connected to the top plate portion 11 via a bridge 11 a that can be easily broken by the bending of the pressing plate 16.

Furthermore, in the illustrated example, a holding plate 19 that is substantially the same shape and size as the support plate 18 is integrally connected to the inner peripheral surface of the fitting cylindrical portion 12 so as to face the back surface 18c of the support plate 18. Yes. Accordingly, when the pressing plate 16 is bent and the vicinity of the hinge portion 16b is brought to the back surface 18c side of the support plate 18, the vicinity of the hinge portion 16b is connected to the back surface 18c of the support plate 18 and the clamping plate 19. It is supposed to be sandwiched between.
The interval between the support plate 18 and the sandwiching plate 19 is equal to the thickness of the pressing plate 16. Further, the entire overcap 10 is integrally formed of a synthetic resin material.

  In the overcap-equipped aerosol container configured as described above, first, the ring member 15 is removed from the guide column portion 14, and the inner peripheral surface of the lower end portion of the fitting cylindrical portion 12 is fitted to the outer peripheral surface of the mounting cup 26. The guide column portion 14 is fitted into the ring member 15. Then, the ring member 15 reaches the lower end of the guide column portion 14 as shown in FIG. 3 while the inner peripheral surface 15b of the ring member 15 is in sliding contact with the protruding top portion 14a of the guide column portion 14. Next, the pressing plate 16 is bent downward around the hinge portion 17, and the upper surface of the spray head 23 is pushed down by the pressing end portion 16a to extract the residual gas. Here, when the pressing plate 16 is bent around the hinge portion 17 and the hinge portion vicinity portion 16 b is hooked on the back surface 18 c of the support plate 18, the hinge portion vicinity portion 16 b is sandwiched between the back surface 18 c of the support plate 18. Since the pressing plate 16 is sandwiched between the plates 19, not only the movement in the direction opposite to the direction bent as described above, but also the movement in the bent direction is restricted. Therefore, even if the pressing force from the stem 22 acts on the pressing plate 16, it is possible to reliably maintain the pressing of the stem 22 by the pressing plate 16.

As described above, according to the overcap 10 according to the present embodiment, the inner diameter of the ring member 15 passes through the protruding top portion 14a of each guide column 14 and the diameter of a virtual circle centered on the central axis O is Since the ring member 15 can be removed from the overcap 10 in the same manner, when this guide column 14 is fitted into the ring member 15 removed from the overcap 10 in order to extract residual gas, the aerosol is removed. In the process of using the contents while repeatedly attaching to and detaching from the container 20, for example, the lower end opening of the overcap 10 is expanded in diameter compared to the initial use thereof, so that the cap 10 is fitted into the aerosol container 20. Even if the resultant force is reduced, the lower end opening can be reduced in diameter to increase the fitting force.
Therefore, it is possible to prevent the overcap 10 from being detached from the aerosol container 20 when the residual gas is extracted by the residual gas extraction mechanism 13.

In addition, since the ring member 15 is connected to the upper portion of the guide column portion 14 located in the upper portion of the fitting cylindrical portion 12 where the diameter expansion deformation hardly occurs, the ring member 15 is used in the process of using the contents as described above. It becomes possible to prevent 15 from expanding and deforming, and the above-mentioned effects can be reliably achieved.
Further, since the intersecting ridge line portion 15c of the ring member 15 is connected to the guide column portion 14, when the ring member 15 is removed from the guide column portion 14, the burrs generated on the inner peripheral surface 15b of the ring member 15 are eliminated. Can be minimized, and the guide post 14 can be easily fitted into the ring member 15 without being caught.

  Further, in the present embodiment, the guide column portion 14 has its lower end along the central axis O direction from a position away from the surface of the top plate portion 11 in the outer peripheral surface of the fitting cylindrical portion 12 downward in the central axis O direction. The size of the ring member 15 in the direction of the central axis O is equal to the distance in the direction of the central axis O between the upper end of the guide column 14 and the surface of the top plate 11. By providing the ring member 15 on the cap 10, it is possible to prevent the ring member 15 from protruding above the surface of the top plate portion 11 and deteriorating the appearance of the overcap 10.

The technical scope of the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.
For example, as shown in FIGS. 4 to 6, a cylindrical cover portion 31 having a diameter larger than that of the fitting cylindrical portion 12 is connected to the upper end of the ring member 15, and the guide column portion is formed by the cover portion 31. You may make it surround 14 and the ring member 15 from radial direction outer side. In this case, by providing the ring member 15 and the guide column portion 14 on the overcap 30, it is possible to reliably suppress the appearance of the overcap 30 from being deteriorated.

 Furthermore, it is preferable to make the outer diameter of the cover part 31 equal to the outer diameter of the body part 24 of the aerosol container 20. In this case, it is possible to make the outer peripheral surface of the overcap 30 and the outer peripheral surface of the body portion 24 of the aerosol container 20 substantially flush with each other with the overcap 30 fitted to the aerosol container 20. The appearance of the aerosol container with an overcap can be improved.

 Here, in the overcap 30 including the cover portion 31, the ring member 15 is separated from the overcap 30 together with the cover portion 31, and then the cover portion 31 is fitted in the fitting cylindrical portion 12 to the aerosol container 20. The attached ring member 15 is turned upside down, and the guide column portion 14 is fitted into the ring member 15 from the upper end side. Then, the ring member 15 reaches the lower end of the guide column portion 14 as shown in FIG. 6 while the inner peripheral surface 15b of the ring member 15 is in sliding contact with the protruding top portion 14a of the guide column portion 14. Next, the pressure plate 16 is bent downward around the hinge portion 17 and, as described above, in the state where the movement of the pressure plate 16 in the direction opposite to the bent direction is restricted, the pressing head portion 16a causes the spray head. The upper surface of 23 is pushed down to extract residual gas.

  Further, instead of the residual gas venting mechanism 13 of the present embodiment, for example, the pressing plate is integrally connected to the top plate portion 11 through the connecting portions on both sides thereof, and both end portions thereof move up and down. In this manner, the overcap is fitted to the aerosol container 20 when the one end side of the pressing plate is pushed down and the pressing plate is rotated around the connecting portion by being provided so as to be rotatable around the connecting portion. The pressing plate may employ a residual gas venting mechanism in which the one end portion pushes down the stem 22 and the other end portion is held in a residual gas venting posture protruding upward from the surface of the top plate portion 11. Good.

  In this case, when extracting the residual gas from the aerosol container 20, the pressing plate has its one end pushed down the stem 22, while the other end side protrudes upward from the surface of the top plate 11. Therefore, before and after extracting the residual gas, the appearance shape of the overcap for the aerosol container can be greatly varied depending on the presence or absence of the protrusion on the other end portion side of the pressing plate. Therefore, after a person who has extracted residual gas leaves the container, for example, when a person other than the person who has extracted residual gas sees the container, the person is away from the container. In addition, it is possible to determine at a glance whether the residual gas has already been extracted from the appearance as seen from there.

 Further, in place of the residual gas venting mechanism, a pressing plate is removably partitioned from the top plate portion 11, and an opening is formed in the top plate portion 11 by removing the pressing plate. The first engaging portion formed on each side of the outer peripheral edge of the pressing plate when the pressing plate removed from the top plate 11 is inserted into the opening from one end side of the outer peripheral edge. A pair of second engaging portions that are respectively engaged with each other are provided, and the first and second engaging portions are engaged with each other, so that the overcap is fitted in the aerosol container 20 and pressed. The plate may employ a residual gas venting mechanism in which the one end portion pushes down the stem 22 and the other end portion is held in a posture protruding upward from the surface of the top plate portion 11.

Here, in the embodiment shown in FIGS. 1 to 6, by providing a pair of support plates 18 inside the overcaps 10, 30, the movement of the pressing plate 16 in at least the direction opposite to the bent direction is restricted. However, instead of this, for example, without providing the support plate 18, a locking portion capable of locking the pressing end portion 16 a of the pressing plate 16 may be formed on the upper surface of the spray head 23.
Furthermore, in the said embodiment, although the press board 16 was connected with the top-plate part 11 via the bridge | bridging 11a, the bridge | bridging 11a does not need to be provided. Further, instead of the bridge 11a, the pressing plate 16 is surrounded by a thin portion having a thickness smaller than that of the pressing plate 16 or the top plate portion 11, so that the pressing plate 16 is partitioned from the top plate portion 11. May be.
Furthermore, in the said embodiment, although the press plate 16 was planar-view semicircle shape, it is not restricted to this, For example, it is good also as a rectangle, a polygon, etc.

Furthermore, in the said embodiment, although the upper surface of the spraying head 23 was pushed down by the pressing-down edge part 16a of the press board 16, instead, for example, the spraying head 23 is removed from the stem 22 and the opening end surface of this stem 22 is pressed. The pressing end 16a of the plate 16 may be pressed down.
Further, when extracting the residual gas, the pressing end 16a of the pressing plate 16 is caused to enter the inside of the overcaps 10 and 30, and after the guide column portion 14 is fitted into the ring member 15, the caps 10 and 30 are inserted. May be fitted to the aerosol container 20, or the pressing end 16a of the pressing plate 16 is caused to enter the inside of the overcaps 10 and 30 with the caps 10 and 30 fitted to the aerosol container 20. The guide column portion 14 may be fitted in the ring member 15.
Furthermore, the cross-sectional shapes of the aerosol container 20, the overcaps 10 and 30, and the ring member 15 are not limited to the illustrated circle, and may be, for example, a polygon.

  In a state where the overcap is fitted to the aerosol container, when the residual gas is extracted by pushing down the stem by the residual gas venting mechanism, the overcap can be prevented from being detached from the aerosol container.

It is a partial longitudinal cross-sectional view which shows the aerosol container with an overcap shown as 1st Embodiment based on this invention. It is a top view of the overcap for aerosol containers shown in FIG. It is a partial longitudinal cross-sectional view which shows the state which has extracted the residual gas in the aerosol container with an overcap shown in FIG. It is a partial longitudinal cross-sectional view which shows the aerosol container with an overcap shown as 2nd Embodiment concerning this invention. It is a top view of the overcap for aerosol containers shown in FIG. It is a partial longitudinal cross-sectional view which shows the state which is extracting the residual gas in the aerosol container with an overcap shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10, 30 Overcap for aerosol containers 11 Top plate part 12 Fitting cylindrical part 13 Residual gas venting mechanism 14 Guide column part 15 Ring member 15a Lower end opening surface 15b Inner peripheral surface 15c Crossing ridge line part 20 Aerosol container 22 Stem 23 Spray head 31 Cover part O Center axis

Claims (4)

An aerosol container overcap that is detachably fitted to an aerosol container comprising a stem erected in an upward biased state and a spray head attached to the stem,
A top plate portion facing the top surface of the spray head in a state fitted to an aerosol container;
A fitting cylindrical portion that is suspended from the outer peripheral edge of the top plate portion, and whose lower end opening is fitted to the aerosol container,
In a state where the overcap is fitted to the aerosol container, a residual gas venting mechanism provided to be able to push down the stem is provided.
On the outer peripheral surface of the fitting cylindrical portion, a plurality of guide column portions projecting along the central axis direction of the overcap from the upper portion to the lower end on the top plate portion side with a space in the circumferential direction,
The cross ridge line portion formed by the lower end opening surface and the inner peripheral surface of the ring member is detachably connected to each upper portion of these guide pillar portions, and the ring member is disposed coaxially with the central axis.
An aerosol characterized in that an inner diameter of the ring member is equal to a diameter of a virtual circle passing through an outer end of each guide column portion in the radial direction of the overcap and centering on the central axis. Overcap for containers. An overcap for an aerosol container according to claim 1,
The guide column part extends from the surface of the top plate part on the outer peripheral surface of the fitting cylindrical part to the lower side along the central axis direction from a position separated downward in the central axis direction,
The size of the ring member in the central axis direction is equal to the distance in the central axis direction between the upper end of the guide column portion and the surface of the top plate portion. An overcap for an aerosol container according to claim 1 or 2,
A cylindrical cover portion having a diameter larger than that of the fitting cylindrical portion is continuously provided at an upper end of the ring member, and the ring member and the guide column portion are surrounded from the outside in the radial direction by the cover portion. An overcap for aerosol containers. An aerosol container having a stem erected in an upwardly biased state, and a spray head attached to the stem; and an aerosol container overcap fitted to the aerosol container so as to surround the stem and the spray head An overcap aerosol container with
The aerosol container overcap is the aerosol container overcap according to any one of claims 1 to 3, wherein the aerosol container overcap has an overcap.

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