JP2008062959A - Jetting device for aerosol container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide the function of venting remaining gas in an aerosol container to enable to interchange a normal jetting mode and a remaining gas venting mode, and to make it possible to push down a button part easily and surely in the normal jetting mode even when a projecting part for operation is provided at the top part of the button part. <P>SOLUTION: A jetting device 1 for the aerosol container includes a cap body part 10 mounted on the aerosol container 50, the button part 30 rotatably mounted on a stem 51 of the aerosol container and pushing down the stem to guide the content to a jetting opening 60, an operation projecting part 31 used when the button part is rotated to be changed to the remaining gas venting mode and projecting in a plate shape from the button part, and an operation projection cover part 12 integrally formed with the cap body part through a weak rigid part 11, and indirectly pushing down the button part with the projecting part for operation covered in the normal jetting mode. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an aerosol container injection device, and in particular, an aerosol container injection device having a residual gas discharge function that allows a residual gas component to be removed while maintaining the push-down of a button part in a state where the aerosol container is mounted. About.

  There are known aerosol products, such as deodorants and insecticides, that inject the contents of an aerosol container to the outside from an injection port. In general, aerosol containers used for aerosol products such as deodorants and insecticides are filled with combustible gas compressed as a propellant together with liquid and powdered contents. The contents are jetted when the stem is pressed by the jetting device attached to the.

  In general, in an aerosol container, combustible gas for releasing the contents often remains even after the liquid and powdery contents are used up. Since the flammable gas is a gas that may ignite and explode if there is fire, an unexpected situation may occur if the aerosol container is discarded with the flammable gas remaining. For this reason, the injection apparatus provided with the residual gas discharge function is proposed so that the aerosol container can be discarded after all the residual gas is discharged.

  In Patent Document 1, a push button is connected to a stem of an aerosol can body, a slit is provided at the top of the push button, and a residual gas discharge is provided on the inner periphery of the cap with an inclined guide surface for guiding a pair of protrusions. A mechanism is disclosed. When a coin or the like is inserted into the slit and the push button is rotated, the pair of protrusions are guided along the guide surface, and the push button is pushed toward the aerosol can body to discharge residual gas.

  In addition, if an operation protrusion for rotation operation is provided without a slit at the top of the push button, the operation button is picked up and the push button is rotated without using a coin to discharge residual gas. It is also possible to make it.

JP 2006-143282 A

  However, when an operation projection for rotating operation is provided on the top of the push button, it is difficult to push down the push button during normal use (normal injection mode).

  Therefore, the present invention is provided with a residual gas discharge function for discharging the residual gas in the aerosol container, and in the aerosol container injection device that can be switched between the normal injection mode and the residual gas discharge mode, the operation projection part is provided on the top part of the button part. Even if it is provided, it is an object to enable the button part to be pushed down easily and reliably in the normal injection mode.

  The present invention that can solve the above-mentioned problems is an aerosol container injection device having a residual gas discharge function for discharging residual gas in an aerosol container and capable of switching between a normal injection mode and a residual gas discharge mode, A cap main body portion to be attached to the aerosol container; a button portion rotatably attached to the stem of the aerosol container; and a button portion for guiding the contents ejected by pressing the stem to the ejection port; and the button portion is rotated. Used to switch to the residual gas discharge mode, and is formed integrally with the operation protrusion projecting in a plate shape from the button part via the cap body part and the weak rigid part, and the operation in the normal injection mode. And an operation protrusion cover part for indirectly pressing the button part in a state of covering the protrusion part.

According to the above configuration, in the normal injection mode, the operation protrusion can be held in a state of being covered with the operation protrusion cover (that is, the operation protrusion cover is placed on the operation protrusion).
Therefore, when the button part is pressed in the normal injection mode, the button part can be pressed by pressing down the operation projection cover part.
Thereby, the button part can be pressed without directly pressing down the operation projection part with a finger.

On the other hand, when switching to the residual gas discharge mode, the weak rigid body portion can be elastically deformed to lift the operation projection cover portion upward. By lifting the operation projection cover part upward, the operation projection part can be exposed in a state where it can be easily grasped with a finger.
As a result, the operation protrusion can be picked with a finger, and the operation protrusion can be operated to switch to the residual gas discharge mode.

  Moreover, the said structure WHEREIN: The said operation protrusion cover part has an engagement groove | channel engaged with the said operation protrusion part in the said normal injection mode, It is characterized by the above-mentioned.

According to such a configuration, the engagement groove is provided in the operation protrusion cover portion, and the engagement groove can be engaged with the operation protrusion portion in the normal injection mode. Therefore, by engaging the engagement groove with the operation protrusion, it is possible to maintain the state switched to the normal injection mode.
Thereby, since it can hold | maintain in the state which turned the injection port to the injection position easily, the handleability of the injection apparatus for aerosol containers can be improved.

  In the above-described configuration, in the normal injection mode, the tip of the operation projection cover portion is positioned so as to be opposite to the weak rigid body portion with the operation projection portion as a center, and on the inner side of the cap main body portion. It is formed so that it may be located.

According to such a configuration, in the normal injection mode, the tip of the operation projection cover portion is configured to be on the side opposite to the weak rigid body portion with the operation projection portion as a center. Therefore, when the pressing force is applied to the tip of the operation projection cover portion, the pressing force can be efficiently applied to the operation projection portion.
Thereby, even if the tip of the operation projection cover part is pushed down with a relatively small pressing force, the button part can be reliably pushed down together with the operation projection part, so that the operability of the aerosol container injection device can be improved. .

In addition, the tip of the operation projection cover part is formed to be located inside the cap body part.
Thereby, since the front-end | tip of the operation protrusion cover part does not protrude outside the cap main-body part, the handleability of the aerosol container injection apparatus can be improved.

According to the present invention, it is not necessary to press down the operation protrusion directly with a finger by pressing the button part using the operation protrusion cover part. Thereby, even if the operation protrusion part is provided in the top part of the button part, a button part can be pushed down easily and reliably.
In addition, by lifting the operation projection cover portion upward, the operation projection portion can be picked with a finger and switched to the residual gas discharge mode easily and reliably.

Hereinafter, an embodiment of an aerosol container injection device according to the present invention will be described in detail with reference to the drawings.
The structure of the cap body 10 of the aerosol container injection device 1 according to the present invention will be described based on FIGS. 1 to 5, and the button portion of the aerosol container injection device 1 according to the present invention will be described based on FIGS. 6 to 8. The structure of the aerosol container injection device 1 according to the present invention will be described based on FIGS. 9 and 10, the normal injection mode will be described based on FIG. 11, and based on FIGS. 12 to 14. The residual gas discharge mode will be described.

  As for the cap main-body part 10 of the aerosol container injection apparatus 1, the outer peripheral wall 20 is formed in a substantially cylindrical shape (refer FIGS. 1-4), and the inner peripheral wall 21 is coaxially formed inside the outer peripheral wall 20 (FIG. 3). 4), an injection guide port 22 is formed from the inner peripheral wall 21 toward the outer peripheral wall 20 (see FIGS. 1 and 3), and the inner peripheral side wall 23 has a vertical guide groove 23a and a guide surface (cam) 23b. And holding surface 23c, guide surface 23a ', guide surface 23b', and holding surface 23c 'are formed (refer to Drawing 5 (a) and (b)).

As shown in FIGS. 10 to 12, the outer peripheral wall 20 is formed so that the bottom 20 a can be fitted to the top 50 a of the aerosol container 50.
The button part 30 shown in FIGS. 6-8 is arrange | positioned at the inner peripheral wall 21. FIG. Specifically, the inner peripheral wall 21 is formed so that the button part 30 is movable in the vertical direction and is rotatably arranged.
As shown in FIGS. 1 and 3, the injection guide port 22 is formed in a tapered shape so that the opening area gradually increases from the inlet 22a toward the outlet 22b.

As shown in FIGS. 5A and 5B, the vertical guide groove 23a is formed to extend in the vertical direction. The guide surface 23b is formed in a downward gradient from the center of the vertical guide groove 23a downward. The holding surface 23c is formed at the lower end of the guide surface 23b.
Further, the guide surface 23b ′ is formed in a downward gradient from the center of the guide surface 23a ′ downward, and the holding surface 23c ′ is formed at the lower end portion of the guide surface 23b ′.
The roles of the vertical guide groove 23a, the guide surface 23b, and the guide surface 23b will be described in detail with reference to FIGS.

As shown in FIG. 2 to FIG. 3 and FIG. 5A, an operation projection cover portion 12 is integrally formed on the cap body portion 10 via a weak rigid portion 11.
Specifically, the operation projection cover portion 12 is connected via the weak rigid body portion 11 in the middle of the upper guide wall 26 that forms the ejection guide port 22 of the cap body portion 10. The weak rigid body portion 11 is a portion that can be elastically deformed.

By making the weak rigid body part 11 elastically deformable, as shown in FIG. 5A, the operation projection cover part 12 swings in the vertical direction (arrow direction) around the weak rigid body part 11 as an axis. be able to.
As shown in FIG. 3, the operation protrusion cover portion 12 is a plate formed in a substantially rectangular shape in plan view, and the tip 14 of the operation protrusion cover portion 12 is operated in the normal injection mode (the illustrated mode). It is formed so as to be located on the opposite side to the weak rigid body portion 11 with the projection portion 31 as the center, and to be located on the inner side of the cap main body portion 10, and the engagement groove 13 is formed on the back surface (see FIGS. 2 and 5A). ) Is formed.
The tip 14 is formed in a curved shape with an edge portion 14 a along the outer peripheral wall 20.

As shown in FIGS. 2 and 5A, the engagement groove 13 is a groove extending linearly from the weak rigid body portion 11 toward the tip end 14 at the center in the width direction on the back surface of the operation projection cover portion 12. is there.
The engagement groove 13 is fitted and engaged with the top 31a of the operation protrusion 31 shown in FIGS. 6 to 8 by disposing the operation protrusion cover 12 substantially horizontally in the normal injection mode. .

As shown in FIGS. 6 to 8, the button portion 30 of the aerosol container injection device 1 is formed in a cylindrical shape, and a fitting hole 35 (see FIG. 8) extending in the vertical direction is formed inside. An injection port 60 communicating with 35 extends in a direction perpendicular to the fitting hole 35.
By fitting the fitting hole 35 into the stem 51 shown in FIG. 10, the button portion 30 is rotatably mounted together with the stem 51.

  On the top portion 30 a of the button portion 30, an operation projection portion 31 is projected in a plate shape along the injection port 60. As shown in FIG. 8, the top 31a of the operation projection 31 is formed in a curved shape from one end 31b to the other end 31c.

Further, as shown in FIGS. 7 and 8, the outer peripheral lower portion 30 b of the button portion 30 is formed with a protrusion 33 protruding outward at a portion opposite to the injection port 60. Furthermore, the opening part 32 which mounts the injection port 60 protrudes on the top part 30a of the button part 30 in the reverse direction (toward the front) with the protrusion 33. FIG.
As shown in FIG. 10, the protrusion 33 is arranged in a state where the button portion 30 is arranged on the inner peripheral wall 21 of the cap body portion 10 and the injection port 60 faces the injection guide port 22, that is, in the normal injection mode state. It arrange | positions in the vertical guide groove 23a (refer FIG.5 (b)). At this time, the upper part of the opening part 32 is arrange | positioned at guide surface 23a '.

Next, the aerosol container injection device 1 including the cap body 10 and the button 30 will be described with reference to FIGS. 9 and 10.
The aerosol container injection device 1 has a residual gas discharge function for discharging the residual gas in the aerosol container 50 in addition to a normal injection function, and a normal injection mode for performing normal injection, and a residual gas discharge for discharging residual gas. It is configured to be switchable between modes.

  As shown in FIGS. 9 and 10, the aerosol container injection device 1 is rotatably mounted on a cap main body portion 10 to be attached to the aerosol container 50 and a stem 51 of the aerosol container 50, and presses down the stem 51. A button part 30 for guiding the ejected contents to the injection port 60, and an operation protrusion part 31 protruding from the button part 30 in a plate shape, which is used when the button part 30 is rotated to switch to the residual gas discharge mode; And an operation projection cover portion 12 that is formed integrally with the cap main body portion 10 and the weak rigid body portion 11 and indirectly presses the button portion 30 in a state of covering the operation projection portion in the normal injection mode.

Here, as shown in FIG. 2 and FIG. 5A, the operation protrusion cover portion 12 has an engagement groove 13 formed linearly from the weak rigid body portion 11 toward the tip 14 at the center in the width direction of the back surface. ing. Therefore, the aerosol container injection device 1 can be kept in the normal injection mode by engaging the engagement groove 13 with the operation protrusion 31.
Thereby, since the injection port 60 can be easily hold | maintained in the state which faced the injection position, the handleability of the aerosol container injection apparatus 1 can be improved.

Next, an example in which the aerosol container injection device 1 is used in the normal injection mode will be described with reference to FIG.
When the button portion 30 is pressed in the normal injection mode, a pressing force is applied to the tip 14 of the operation projection cover portion 12 to push the operation projection cover portion 12 down in the direction of the arrow. The engagement groove 13 is engaged with the top 31 a of the operation protrusion 31.
Therefore, the button part 30 is pushed down by pushing down the operation protrusion cover part 12. The protrusion 33 moves together with the button part 30 in the vertical direction along the vertical guide groove 23a (see also FIG. 5B).

By pressing the button part 30, the stem 51 is pushed down by the button part 30.
When the stem 51 is pushed down, the content of the aerosol container 50 is ejected from the ejection port 60, and the ejected content is ejected to the outside from the ejection guide port 22.
Thereby, since it is not necessary to push down the operation projection part 31 directly with a finger, even if the operation projection part 31 is provided in the top part 30a of the button part 30, the operation projection part 31 does not become obstructive when pushing down the button part 30. .

Here, in the normal injection mode, the distal end 14 of the operation protrusion cover portion 12 is disposed on the opposite side of the weak rigid body portion 11 with the operation protrusion portion 31 as the center. Therefore, when a pressing force is applied to the tip 14 of the operation projection cover portion 12, the pressing force can be efficiently applied to the operation projection portion 31.
Thereby, even if the front end 14 of the operation projection cover portion 12 is pushed down with a relatively small pressing force, the button portion 30 can be surely pushed down together with the operation projection portion 31, so that the operability of the aerosol container injection device 1 is improved. Can be increased.

Furthermore, by engaging the engagement groove 13 with the operation projection portion 31, the button portion 30 can be reliably held in the normal injection mode.
Therefore, the protrusion 33 can be prevented from entering the guide surface 23b (see FIG. 5B) when moving in the vertical direction along the vertical guide groove 23a (see also FIG. 5B). .
Thereby, the operation in the normal injection mode can be performed well, and the operability can be improved.

In addition, the tip 14 of the operation projection cover part 12 is positioned inside the cap body part 10. By positioning the tip 14 inside the cap body 10, the tip 14 does not protrude outside the cap body 10.
Thereby, the handleability of the aerosol container injection apparatus 1 can be improved.

Next, an example of switching the aerosol container injection device 1 to the residual gas discharge mode will be described with reference to FIGS.
When switching to the residual gas discharge mode, the weak rigid body portion 11 is elastically deformed, and the operation projection cover portion 12 is lifted upward (in the direction of the arrow). The operation protrusion 31 is exposed by lifting the operation protrusion cover 12 upward.

By grasping the operation protrusion 31 and rotating the operation protrusion 31 in the direction of the arrow in FIG. 3, the protrusion 33 together with the button 30 is formed on the guide surface 23 b (see also FIG. 5B) and the opening 32. Descends to a position facing the guide surface 23b '.
By rotating the operation protrusion 31 in the clockwise direction, the button portion 30 rotates in the clockwise direction together with the stem 51 toward the position of the residual gas discharge mode.

By rotating the button portion 30 toward the residual gas discharge mode, the protrusion 33 shown in FIG. 14 is guided from the vertical guide groove 23a (see also FIG. 5B) to the guide surface 23b, and the opening 32 is guided to the guide surface. It is guided from 23a 'to the guide surface 23b'.
By further rotating the button portion 30, as shown in FIG. 14, the projection 33 is guided to the holding surface 23c (see also FIG. 5B) through the guide surface 23b, and the opening 32 moves along the guide surface 23b ′. Then, it is guided to the holding surface 23c ′.

When the projection 33 is guided to the holding surface 23c by the guide surface 23b, the projection 33 descends along the guide surface 23b. Therefore, the button 30 is lowered together with the protrusion 33. In this state, the protrusion 33 is held on the holding surface 23c.
Thereby, even if a hand is released from the operation projection part 31, the button part 30 is hold | maintained in the pressed-down state.

The stem 51 is pushed down by the button part 30 and the residual gas is injected from the injection port 60. The injected residual gas is discharged to the outside from the injection guide port 22 through the inner peripheral wall 21 (see FIGS. 3 and 4).
Therefore, when switching to the residual gas discharge mode, it is possible to switch to the residual gas discharge mode by lifting the operation protrusion cover portion 12 upward and holding the operation protrusion 31 with a finger.

Thus, the aerosol container injection device 1 according to the present embodiment can press the button 30 using the operation projection cover 12. Thereby, since it is not necessary to push down the operation projection part 31 with a finger directly, even if the operation projection part 31 is provided in the top part 30a of the button part 30, the button part 30 can be pushed down easily and reliably.
In addition, by lifting the operation projection cover portion 12 upward, the operation projection portion 31 can be picked with a finger and switched to the residual gas discharge mode easily and reliably.

It is a front view of the cap main-body part which comprises the aerosol container injection device concerning this embodiment. It is a rear view of the cap main-body part which comprises the injection apparatus for aerosol containers concerning this embodiment. It is a top view of the cap main-body part which comprises the aerosol container injection device concerning this embodiment. It is a bottom view of the cap main-body part which comprises the aerosol container injection device concerning this embodiment. (A) is the sectional view on the AA line of FIG. (B) is an enlarged view of the cam part provided in the inner peripheral side wall of a cap main-body part. It is a front view of the button part which constitutes the aerosol container injection device concerning this embodiment. It is a rear view of the button part which comprises the injection device for aerosol containers concerning this embodiment. It is the BB sectional view taken on the line of FIG. It is a rear view of the aerosol container injection device concerning this embodiment. It is sectional drawing of the state which attached the aerosol container injection device concerning this embodiment to the aerosol container. It is sectional drawing of the injection apparatus for aerosol containers in normal injection mode. It is sectional drawing of the injection apparatus for aerosol containers in residual gas discharge mode. It is a top view of the aerosol container injection device in the residual gas discharge mode. It is a bottom view of the aerosol container injection device in the residual gas discharge mode.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Aerosol container injection apparatus 10 Cap main-body part 11 Weak rigid body part 12 Operation protrusion cover part 13 Engagement groove 14 Tip 30 Button part 31 Operation protrusion part 50 Aerosol container 51 Stem 60 Injection port

Claims (3)

An aerosol container injection device having a residual gas discharge function for discharging residual gas in an aerosol container and capable of switching between a normal injection mode and a residual gas discharge mode,
A cap body mounted on the aerosol container;
A button unit rotatably mounted on the aerosol container and guiding the contents ejected by pressing the stem to the ejection port;
Used when rotating the button portion to switch to the residual gas discharge mode, and an operation projection portion protruding in a plate shape from the button portion,
An operation projection cover portion that is formed integrally with the cap main body portion and a weak rigid body portion, and indirectly presses the button portion in a state of covering the operation projection portion in the normal injection mode. An aerosol container spraying device.   2. The aerosol container injection device according to claim 1, wherein the operation protrusion cover portion includes an engagement groove that engages with the operation protrusion in the normal injection mode.   In the normal injection mode, the operation protrusion cover portion is formed such that the tip of the operation protrusion cover portion is positioned on the opposite side of the weak rigid body portion with respect to the operation protrusion portion, and is positioned on the inner side of the cap main body portion. The aerosol container injection device according to claim 1 or 2, wherein

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