JP4951283B2 - Aerosol container injection device - Google Patents

Description

  The present invention relates to an aerosol container injection device for injecting the contents ejected from a stem of an aerosol container to the outside.

  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.

  For example, Patent Document 1 discloses that an injection button body that has a vertical nozzle portion and a horizontal nozzle portion that are fitted to the stem of an aerosol container and is operated to be pushed down, a wall portion that covers the periphery thereof, and an aerosol An injection button with a long nozzle provided with an injection button base attached to the top of the container is disclosed. The long nozzle is rotatably provided in front of the spray button, and when the long nozzle is in a forward-facing state and then sprayed, the contents can be sprayed to the target place ( Patent Document 1).

  By the way, in the 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.

For example, Patent Document 2 discloses a lid with a spray can degassing mechanism for disposable use, which can hold the spray can stably upside down, and the upper lid 1 serves as a tray for the remaining liquid. Provide a gas escape part in a part of the side and a horizontal flat part in the center of the lid bottom, and use a trapezoidal obstacle with a height just enough to push the spray button of the spray can to use it In addition, there is disclosed a lid with a spray can degassing mechanism which is usually provided in another place so as not to get in the way and the spray can is inserted upside down in a state where this obstacle is installed on a flat surface when degassing.
JP 2002-248384 A JP-A-10-86984

  However, it is difficult to employ the gas venting mechanism described in Patent Document 2 in an injection device having a long nozzle as in Patent Document 1. That is, since the injection button part is not covered with the cap, the injection device described in the patent invention 1 cannot apply the means for maintaining the pressed state described in the patent document 2. In the case of an aerosol apparatus provided with a long nozzle, the long nozzle often becomes an obstacle each time a certain part is moved. Therefore, an injection maintaining mechanism that can maintain the pressed state of the stem with an operation as simple as possible is desired.

  The present invention has been made in view of the above-described problem, and in an injection device mounted on an aerosol container having a nozzle mounting portion for mounting a long nozzle, the state of pressing the stem of the aerosol container is easily maintained. An object of the present invention is to provide an aerosol injection device that can discharge residual gas.

  The present invention that can solve the above problems is formed integrally with a cap main body part to be attached to an aerosol container and the cap main body part, and is attached to the stem of the aerosol container and ejected from the stem. A nozzle mounting portion having a guide path for guiding the contents to the injection nozzle, a notch portion straddling the nozzle mounting portion, and a button portion for indirectly pressing the stem through the nozzle mounting portion; The cap body part and the button part have the nozzle mounting part at a height at which the stem is depressed when the button part is rotated within the notch range of the notch part. An engaging portion is formed so as to be maintained.

  According to the above configuration, the nozzle mounting portion is configured to penetrate the notch formed in the button portion, and is configured such that the stem is indirectly pressed when the nozzle mounting portion is pressed by the button portion. ing. That is, the button part can be rotated without being obstructed by the nozzle mounting part as long as it is within the notch range of the notch part. When the button portion is rotated, the cap main body portion and the engaging portion of the button portion are engaged, so that the stem can be maintained in the pressed state. Therefore, also in the aerosol container injection device provided with the nozzle mounting portion, it is possible to easily maintain the pressed state of the stem of the aerosol container and to discharge the residual gas.

  In the above configuration, the engaging portion includes a cam portion formed on the inner wall of the cap main body portion, and an engaging protrusion that engages with the cam portion formed on the outer wall of the button portion. When the button part is rotated, the engaging protrusion is guided by the cam part and the button part is pushed down.

  According to such a configuration, when the button portion is rotated, the engaging protrusion is guided to the cam portion and the button portion is pressed down. Therefore, for example, by tilting the shape of the cam portion, the user can easily press the stem according to the tilt and maintain the engaged state simply by rotating the button portion.

  Further, in the above configuration, the button portion includes a slit on the upper surface portion, the engagement piece is engaged with the slit, and the button portion is rotated by rotating the engagement piece. .

  According to such a configuration, it is possible to easily rotate the button portion only by rotating the engagement piece engaged with the slit. For example, a coin may be engaged with the slit as the engagement piece. If the engagement piece corresponding to the slit shape is engaged without being limited to the coin, it is possible to shift to the engagement state with a smaller force than when the button portion is directly rotated.

  Moreover, the said structure WHEREIN: The said button part and the said nozzle mounting part can be fitted, and it is formed so that rotation is possible.

  According to such a structure, a button part can be rotated in the state in which the button part and the stem mounting part were fitted. Therefore, the nozzle mounting part and the button part do not shift even when the button part is rotating. Also, for example, if the fitting part is configured to be the center of the button part, the fitting part is used as a rotation axis with a good balance. It can be rotated smoothly.

  According to the present invention, in the aerosol injection device attached to the aerosol container provided with the nozzle attachment part to which the long nozzle is attached, the pressed state of the stem of the aerosol container can be easily maintained, and the residual gas is It is possible to discharge.

Hereinafter, an embodiment of an aerosol container injection device according to the present invention will be described in detail with reference to the drawings.
(Aerosol cap structure)
The aerosol container injection device of the present embodiment mainly includes an aerosol cap and a button portion. First, the structure of the aerosol cap 10 which comprises the aerosol injection apparatus 1 concerning this embodiment is demonstrated using FIGS. 1 is a front view of an aerosol cap according to the present embodiment, FIG. 2 is a rear view of the aerosol cap, FIG. 3 is a top view of the aerosol cap, FIG. 4 is a bottom view of the aerosol cap, and FIG. 3 is a cross-sectional view taken along line AA of FIG. 3, FIG. 5B is an enlarged view of the cam portion, and FIG. 6 is a cross-sectional view taken along line BB of FIG.

  The aerosol cap 10 has a substantially cylindrical outline as shown in FIGS. 1 to 4, and mainly includes a cap main body portion 11 attached to the aerosol container and a substantially central portion of the cap main body portion 11 toward the front. And a nozzle mounting portion 12 that extends. As shown in FIG. 5, the nozzle mounting portion 12 is formed integrally with the cap main body portion 11 via an extending plate 19 that extends obliquely from the lower front portion of the cap main body portion 11 toward the center portion of the aerosol cap. ing.

  In addition, the nozzle mounting portion 12 is mounted on the stem of the aerosol container and guides the contents ejected from the stem to an injection nozzle 70 (see FIG. 9 described later) mounted on the tip of the nozzle mounting portion 12. A path 14 is provided.

  A nozzle cover 15 is formed on the front surface of the aerosol cap 10 to protect the nozzle mounting portion 12 and the injection nozzle 70 from dropping, impact, etc. during manufacture, shipment, and normal use of the aerosol injection device. Yes. As shown in FIG. 1, the nozzle cover 15 has a front-view shape, and is formed to project in the front direction of the aerosol cap so as to cover the upper side and the side of the nozzle mounting portion 12 and the injection nozzle 70 (FIG. 1). 5).

  As shown in FIGS. 5 and 6, in the nozzle mounting portion 12, a stem mounting portion 16 to which the stem of the aerosol container is mounted opens in a direction orthogonal to the guide path 14. When attaching the aerosol cap 10 to the aerosol container, the fitting means 17 is fitted to the mountain cup and the stem attachment portion 16 is attached to the stem.

  Furthermore, a cylindrical projection 18 is formed on the nozzle mounting portion 12 at a position that is substantially on the extension line of the stem when the stem mounting portion 16 is mounted on the stem. When a button portion to be described later is mounted, the button portion is configured to fit into a recess of the button portion to be described later in a shape corresponding to the protrusion 18. In the present embodiment, the projection 18 is provided on the aerosol cap 10 and the depression is provided on the button part. Conversely, the depression may be provided on the aerosol cap 10 and the projection 18 may be provided on the button part 50.

  On the inner peripheral wall 21 of the central portion of the cap body 11, cam portions 20, 20 are formed at positions facing each other. As shown in FIG. 5B, the cam portion 20 includes a first cutout portion 20a that is deeply cut out and a second cutout portion 20b that is cut out shallower than the first cutout portion 20a. The two cutout portions 20b are connected by the inclined portion 20c. The inclined portion 20c is formed so as to be inclined downward from the first cutout portion 20a toward the second cutout portion 20b.

(Button structure)
Next, the button part mounted on the aerosol cap 2 will be described with reference to FIGS. FIG. 7A is an overview of the button portion of the present embodiment, FIG. 7B is a top view of the button portion, FIG. 8A is a cross-sectional view taken along the line CC in FIG. 8B is a cross-sectional view taken along the line DD of FIG. 7B, and FIG. 8C is a bottom view of the button portion.

  As shown in FIGS. 7 (a) and 8 (b), the button portion 50 has a substantially cylindrical shape, and when the aerosol cap 10 is attached to a part of the side wall 52, the nozzle attachment portion. A notch 51 is formed across 12. When the button part 50 is mounted so as to straddle the nozzle mounting part 12 by the notch part 51 and the button part 50 is pressed, the stem is indirectly pressed via the nozzle mounting part 12.

  Further, as shown in FIG. 7A, the side wall 52 of the button portion 50 is located at a position where the engagement protrusions 53, 53 that engage with the cam portions 20, 20 formed on the cap main body portion 11 face each other. Is formed. The engaging protrusion 53 protrudes in the vertical direction from the side wall 52 toward the outside, and is inclined toward the lower part of the button part, and has an inclined surface 54.

  Furthermore, as shown in FIG. 7B and FIG. 8B, a slit 55 is provided on the upper surface portion front side 56 of the button portion 50 so that a plate-like engagement piece such as a coin can be engaged. It has become. The slit 55 is formed in a gently curved shape and has a shape corresponding to a circular shape like a coin. Therefore, when the engagement piece is engaged with the slit 55 and the button portion is rotated, the slit 55 slips. It does not come off easily. On the other hand, a cylindrical recess 57 that fits with the protrusion 18 formed on the nozzle mounting portion 12 described above is formed at a substantially central portion on the back surface 58 of the upper surface portion of the button portion 50. When 57 is fitted, the button part 50 is attached to the aerosol cap 10.

(Operation of aerosol spray device)
Next, the operation of the aerosol injection device 1 of the present embodiment will be described. FIG. 9 is a central vertical cross-sectional view when the aerosol injection device of the present embodiment is mounted on an aerosol container, and FIG. 10 is a central vertical cross-sectional view during discharge of residual gas from the aerosol container.

  In the aerosol container injection device 1 according to the present embodiment, the stem 101 is mounted on the stem mounting portion 16 of the aerosol cap 10, and the recess portion 57 of the button portion 50 is fitted to the protrusion 18 positioned substantially at the center. , What is used. In addition, a spray nozzle 70 that injects the contents of the aerosol container 100 via the guide path 14 to the outside is mounted at the tip of the nozzle mounting portion 12. Further, a second spray nozzle 73 is connected to the spray nozzle 70 by a hinge portion 71. The injection nozzle 70 is rotatable with the hinge portion 71 as a fulcrum, and is configured such that the contents can be injected by switching the injection nozzle 70 or the second injection nozzle 72 as necessary.

  As shown in FIG. 9, it is normally used in a state where the notch portion start end 59 of the notch portion 51 of the button portion 50 is in contact with the nozzle mounting portion 12. As shown in FIG. 9B, at this time, the engagement protrusions 53 and 53 of the button portion 50 are in a state of being engaged with the first cutout portions 20a and 20a of the aerosol cap 10.

  During normal use, the user puts his finger on the upper surface 56 of the button unit 50 from behind and pushes it down to press the stem 101, and the contents of the aerosol container 100 are transferred via the guide path 14. Injected from the injection nozzle 70 or the second injection nozzle 72.

  When the injection state is maintained (residual gas discharge), the coin-shaped engagement plate 90 is engaged with the slit 55 as shown in FIG. Next, when the button is rotated 90 degrees clockwise while being pressed, the button portion 50 rotates around the protrusion 18 as the central axis according to the rotation of the engagement plate 90. The engagement state between the first notches 20a and 20a and the protrusions 53 and 53 is released when the button 50 is pressed and rotation is started.

  Thereafter, the button part 50 descends according to the inclined part 20c of the cam part 20, and stops with the notch part end 60 of the notch part 51 in contact with the nozzle mounting part 12, as shown in FIG. To do. At this time, the engagement protrusions 53 and 53 of the button part 50 are engaged with the second notches 20b and 20b of the aerosol cap 10.

  Thus, when the button part 50 rotates 90 degree | times, the engaging position of the engaging protrusions 53 and 53 will change from the 1st notch part 20a to the 2nd notch part 20b. That is, as shown in FIG. 5B, in the case of the present embodiment, the button portion 50 is pressed by the height h, and the stem 101 is pressed accordingly, and the engaged state is maintained. Thus, as shown in FIG. 10A, the residual gas can be discharged.

  Thus, according to the aerosol injection device 1 of the present embodiment, the button part 50 can be rotated without being obstructed by the nozzle mounting part 12 as long as it is within the notch range of the notch part 51. . When the button part 50 is rotated 90 degrees, the second notches 20c and 20c of the cap body part 11 and the engaging protrusions 53 and 53 of the button part 50 are engaged, so that the stem 101 is maintained in the pressed state. It is possible. Therefore, also in the aerosol container injection device 1 provided with the nozzle mounting part 12, the pressed state of the stem 101 of the aerosol container 100 can be easily maintained, and the residual gas can be discharged.

  Further, when the button portion 50 is rotated, the engaging protrusions 53 and 53 are guided and lowered according to the inclination of the inclined portions 20c and 20c of the cam portions 20 and 20, and can be shifted to the engaged state. Has been. Therefore, the user can press the stem 101 and maintain the engaged state simply by rotating the button unit 50.

  Further, the button unit 50 can be easily rotated by simply rotating the engagement piece 90 engaged with the slit 55. Therefore, by engaging the coin-shaped engagement plate 90 corresponding to the curved shape of the slit 55, it is possible to shift to the engaged state with a smaller force than directly rotating the button part.

It is a front view of the aerosol cap concerning this embodiment. It is a rear view of the aerosol cap concerning this embodiment. It is a top view of the aerosol cap concerning this embodiment. It is a bottom view of the aerosol cap concerning this embodiment. (A) is the sectional view on the AA line of FIG. 3, (b) is the figure which expanded the cam part. FIG. 4 is a sectional view taken along line BB in FIG. 3. (A) is a general-view figure of the button part of this embodiment, (b) is a top view of a button part. (A) is the CC sectional view taken on the line of FIG.7 (b), (b) is the DD sectional view taken on the line of FIG.7 (b), (c) is the bottom view of a button part. It is a center longitudinal cross-sectional view when attaching the aerosol injection apparatus of this embodiment to the aerosol container. It is a center longitudinal cross-sectional view in the middle of residual gas discharge | emission of an aerosol container.

Explanation of symbols

1: aerosol injection device, 10: aerosol cap, 11: cap body, 12: nozzle mounting part, 20a: first notch, 20b: second notch, 20c: inclined part, 53: engagement protrusion, 55: Slit

Claims (1)

A cap body mounted on the aerosol container;
A nozzle mounting portion that is formed integrally with the cap body portion and is mounted on a stem of the aerosol container, and has a guide path for guiding the contents ejected from the stem to the spray nozzle;
A notch portion is formed across the nozzle mounting portion, and has a button portion for indirectly pressing the stem through the nozzle mounting portion,
In the cap main body part and the button part, when the button part is rotated within the notch range of the notch part, the nozzle mounting part is maintained at a height at which the stem is depressed. An engaging portion is formed,
The engaging portion is
A cam portion formed on the inner wall of the cap body portion;
An engagement protrusion that engages with the cam portion formed on the outer wall of the button portion,
When the button portion is rotated, the engagement protrusion is guided to the cam portion and the button portion is pressed,
The button part is provided with a slit on the upper surface part,
The button portion can be rotated by engaging a plate-like engagement piece such as a coin with the slit and rotating the engagement piece.
The aerosol container jetting device, wherein the button portion and the nozzle mounting portion are fitted and rotatable.

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