JP2007062750A - Jetting mechanism for aerosol container, and aerosol jetting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a jetting mechanism for an aerosol container and an aerosol jetting device which offer a simple structure in which a button is depressed slantly to depress a stem to fix the stem at a depressed position. <P>SOLUTION: The jetting mechanism includes a cap 10 which has a fitting means 25 fitted on the aerosol container 50, the button 5 which has an engaging part 3 that is projected almost opposite to a jetting outlet 4 from which contents is jetted, an engaging piece 6 which is formed on a part of the cap 10 that is engaged with the engaging face 3a of the engaging part 3, and a stopper 3b which projects from one end of the engaging face 3a. The engaging piece 6 is rotated to the stopper 3b while being slid along the engaging face 3a to depress the button 5 slantly, which depresses the stem 7 to keep the stem 7 at the depressed position. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an aerosol container injection mechanism and an aerosol injection device for removing a gas component remaining in an aerosol container, and more particularly, to remove a residual gas component by maintaining a push-down of a stem in a state of being mounted on the aerosol container. The present invention relates to an aerosol container injection mechanism and an aerosol injection device.

An aerosol container that injects gas in an aerosol can by pressing a pressing portion provided on the top of the aerosol can is used.
In general, even when the aerosol container is used up, a gas for discharging contents is often left in the used aerosol container. For this reason, when discarding a used aerosol container, a residual gas disposal mechanism has been proposed that can release the residual gas by a simple operation (for example, Patent Document 1).

According to the residual gas disposal mechanism of the above-mentioned patent document, the degassing mode setting lever formed integrally with the push button is exposed on the outer peripheral surface of the cap, and the degassing mode setting lever is pushed down slightly and then counterclockwise. , The beam-shaped piece of the degassing mode setting lever is guided by the tapered surface, and the degassing mode setting lever moves toward the container body. As a result, the push button moves toward the container body together with the gas vent mode setting lever, and the stem is pushed down into the container body by the push button to release the residual gas in the container body.
JP 2004-168356 A

However, the conventional residual gas disposal mechanism for aerosol containers has a drawback in that it has a large number of components and lacks quick operation.
In the residual gas disposal mechanism of the above-mentioned patent document, the degassing mode setting lever is exposed on the outer peripheral surface of the cap. For this reason, during normal use, the degassing mode setting lever may get in the way or cause an erroneous operation, leaving room for improvement from the viewpoint of handling.

  The present invention eliminates the above-described problems of the prior art, and by using a relatively simple configuration, pushes the stem diagonally to push down the stem, and can fix the stem in the pushed-down position. And it aims at providing an aerosol injection device.

The above object of the present invention is achieved by the following means.
(1) An injection mechanism that is fitted to an aerosol container that presses a button portion to press a stem and injects contents,
A cap portion having fitting means for fitting into the aerosol container;
A button portion provided with an engaged portion protruding substantially on the opposite side of the injection port for injecting the contents;
An engagement piece provided in a part of the cap portion that engages with an engagement surface of the engaged portion;
A stopper portion protruding from one end of the engagement surface,
The injection is characterized in that the button portion is pushed down obliquely by rotating the engagement piece to the stopper portion while sliding on the engagement surface, and the stem is depressed to hold the stem in the depressed position. mechanism.
(2) The injection mechanism according to (1), wherein the engagement piece has a plate shape.
(3) The injection mechanism according to (1), wherein the engagement piece is provided below a pressing surface of the button part in a normal injection state.
(4) The injection mechanism according to (1), wherein the engagement piece is formed so as to be inclined from a substantially center of the injection mechanism toward a peripheral portion of the cap portion.
(5) The injection mechanism according to (1), wherein a notch portion is formed in the cap portion adjacent to the engagement piece.
(6) An aerosol injection apparatus comprising the injection mechanism according to any one of (1) to (5).

  According to the present invention, it is possible to push down the button portion obliquely by pressing the stem to the stopper portion while sliding the engagement piece on the engagement surface, pressing the stem, and holding the stem in the pressed position. . Therefore, it is possible to provide an injection mechanism having a relatively simple configuration and excellent handleability. Further, by providing the stopper portion, the rotation of the engagement piece is limited at a predetermined position, so that the user does not rotate the engagement piece more than necessary.

  According to the invention, the engagement piece is plate-shaped. Therefore, it is possible to provide an injection mechanism having a simple configuration without using an engagement piece having a complicated shape.

According to the present invention, the engagement piece is provided below the pressing surface of the button part.
By forming in this way, even when the user presses the pressing surface of the button part, the engaging piece can be pressed smoothly without being in the way.

  Further, according to the present invention, the engagement piece is formed so as to be inclined from the approximate center of the injection device toward the peripheral portion of the cap portion. Therefore, when the user presses the pressing surface of the button part, it is possible to provide an injection mechanism that is easy to attach a finger to the pressing surface and has excellent operability.

  Further, according to the present invention, the notch portion is formed in the peripheral portion of the cap portion located in the vicinity of the lower portion of the front end portion of the engagement piece. When the engaging piece is raised by providing the notch portion, it becomes a site for guiding the user's finger, and the finger can be easily hooked to the tip of the engaging piece.

First, the structure of the injection mechanism according to the present invention will be described with reference to FIGS.
FIG. 1 is a rear view of an injection mechanism according to the present invention, FIG. 2 is a top view of the injection mechanism according to the present invention, and FIG. 3 is a cross-sectional view taken along line AA ′ of FIG.

As shown in FIGS. 1 to 3, the main structure of the injection mechanism 30 according to the present invention is provided on the cap portion 10 that is attached to the shoulder portion 50 a of the aerosol container 50 and the top plate portion 12 of the cap portion 10. The button portion 5 provided between the injected gas guide recess 12a and the fingertip guide recess 12b, and the engagement piece provided on the opposite side of the injection port 4 of the button portion 5, that is, on the fingertip guide recess 12b side of the cap portion 10. 6.
In addition, although the cap part 10, the button part 5, and the engagement piece 6 each consist of plastic molding members, other materials, such as not only this plastic molding member but a metal member, may be sufficient.

  In the present embodiment, the injection mechanism 30 is fitted to the shoulder portion 50a of the aerosol container 50 by the fitting means 25 provided in the cap portion 10, and the aerosol injection apparatus 40 is configured by the injection mechanism 30 and the aerosol container 50.

First, the structure of the cap part 10 will be described.
As shown in FIGS. 1 and 2, the cap portion 10 has a circular shape when viewed from above, and injects the top plate portion 12 located in the gas injection direction B so as to allow injection from the injection port 4 of the button portion 5. A gas guide recess 12a is formed. On the other hand, a fingertip guide recess 12b is formed in the top plate 12 located on the opposite side. As described above, in the normal ejection state, the fingertip guide recess 12b is a portion that guides the user's finger when the button portion 5 is pressed, and the button portion can be easily provided by attaching the finger to the fingertip guide recess 12b. 5 can be pressed.

  In this embodiment, the fingertip guide recess 12b forms a recess wider than the spray gas guide recess 12a. By forming in this way, it is difficult to attach a finger to the narrow injection gas guide recess 12a. Therefore, the user accidentally attaches a finger from the injection gas guide recess 12a side and presses the button part 5 to thereby apply the aerosol container 50. There is no risk of injecting the internal gas to the user.

  Further, as shown in FIGS. 1 and 3, a notch portion 14 is provided on the fingertip guide recess 12 b side of the cap portion 10 in the vicinity of the lower portion of the distal end portion 6 a of the engagement piece 6 in the non-injection state. When the engaging piece 6 is raised by providing the notch portion 14, it becomes a portion for guiding the user's finger, and the finger can be easily hooked to the tip portion 6a.

Next, the structure of the button unit 5 will be described.
The button portion 5 has a substantially columnar shape, and a cylindrical stem fitting tube 16 that is fitted to the stem 7 of the aerosol container 50 is suspended in a substantially central portion, and is further positioned in front of the button portion 5. An injection path 17 connecting the injection port 4 and the stem fitting cylinder 16 is connected to the stem fitting cylinder 16 perpendicularly. Further, the nozzle 11 is inserted further in front of the injection port 4, and the contents of the aerosol container 50 are injected from the stem fitting cylinder 16 through the injection path 17 through the injection port 4 to the outside.

  Further, a pressing surface 15 is formed on the upper surface of the button portion 5, and the pressing surface 15 is a slope with a gentle downward slope from the injection port 4 side toward the engaged portion 3 side of the button portion 5.

  Further, an engaged portion 3 that engages with an engaging piece 6 that will be described later protrudes from the opposite side of the injection port 4 of the button portion 5. The engaged portion 3 has a substantially triangular cross section, an engagement surface 3a that engages with the engagement piece 6, a slope 3c that forms an obtuse angle with the bottom surface 5a of the button portion 5, and one end of the engagement surface 3a. And a stopper portion 3b that connects one end of the inclined surface 3c. The stopper portion 3b constitutes a substantially triangular apex portion and protrudes from the engagement surface 3a. Thus, by providing the stopper part 3b, since the rotation of the engagement piece 6 is restricted at a predetermined position, the user does not rotate the engagement piece 6 more than necessary.

Next, the structure of the engagement piece 6 will be described.
As shown in FIG.1 and FIG.3, the engagement piece 6 is a substantially rectangular plate shape, The shaft hole which is not shown in figure is provided in the width direction. Further, as shown in FIG. 2, the engaging piece 6 is configured so that the shaft 20 is inserted into the shaft hole and both ends of the shaft 20 are inserted into insertion holes (not shown) provided on the cap portion 10 side, thereby supporting the shaft 20 as a support shaft. It is mounted so as to be rotatable.

  Here, in order to attach the engagement piece 6 to the cap part 10 in this embodiment, the axis | shaft 20 and the shaft hole and insertion hole which are not shown in figure were used, However, It is not restricted to these means. For example, if pins are provided at both ends in the width direction of the engagement piece 6 and a pin hole is provided on the cap portion 10 side, the engagement piece 6 can be attached to the cap portion 10 simply by inserting the pin into the pin hole. is there.

  Further, the engagement piece 6 is provided so as to be positioned below the pressing surface 15 of the button portion 5. By forming in this way, even when the user presses the pressing surface 15 of the button portion 5, the engaging piece 6 can be pressed smoothly without being in the way. Further, as shown in FIG. 3, the engagement piece 6 is formed so as to be inclined from the approximate center of the injection device 30 toward the peripheral edge portion behind the cap portion 10. Therefore, when the user presses the pressing surface of the button part, it is possible to provide an injection mechanism that is easy to attach a finger to the pressing surface and has excellent operability.

  In addition, as shown in FIG. 3, in the non-injection state of the engagement piece 6, the engagement piece 6 and the to-be-engaged part 3 are formed so that the parts may mutually overlap. By forming in this way, the engaged portion 3 is located below the engaging piece 6, so that the content of the aerosol container 50 is ejected by the user pressing down the pressing surface 15 (hereinafter, usually referred to as normal). In the spraying state), the engaged portion 3 having the concavo-convex portion does not get in the way, and it is easy to attach a finger to the flat engaging piece 6.

  The operational effects of the aerosol injection device 40 according to the present invention configured as described above will be described with reference to FIGS. FIG. 4 is a cross-sectional view showing a normal injection state of the aerosol injection device 40 according to the present invention. FIG. 5 is a cross-sectional view showing a state where the injection state is maintained by rotating the engagement piece 6 (hereinafter referred to as an injection maintenance state).

First, the case where the non-injection state in FIG. 3 is shifted to the normal injection state in FIG. 4 will be described.
The user inserts a finger from the fingertip guide recess 12 b side of the cap portion 10 and attaches the fingertip to the pressing portion 15 of the button portion 5. Next, the pressing part 15 is pressed, and the button part 5 is pushed down in the arrow C direction. The stem 7 of the aerosol container 50 is pushed down by pushing down the button portion 5, and the contents of the aerosol container 50 are ejected from the nozzle 11 in the direction of arrow D through the stem fitting cylinder 16 → the injection path 17 → the injection port 4.

  Next, the case where the engagement piece 6 is rotated from the non-injection state of FIG. 3 to shift to the injection maintenance state will be described.

  First, the user hooks the fingertip onto the distal end portion 6 a of the engagement piece 6 while being guided by the notch portion 14 of the cap portion 10. When the engagement piece 6 starts to be raised while being rotated in the direction of arrow E, the rear end portion 6 b of the engagement piece 6 comes into contact with the engagement surface 3 a of the engaged portion 3 of the button portion 5. After the rear end portion 6b of the engagement piece 6 abuts on the engagement surface 3a, when the engagement piece 6 is further rotated in the direction of arrow E, the button portion 5 has the other end portion 3d of the inclined surface 3c of the button portion 5 as a fulcrum. Is pushed down in the direction of arrow G. As the button portion 5 is pushed down, the stem 7 is also pushed down from the oblique direction, and the contents in the aerosol container 50 are jetted in the direction of arrow F.

  When the engagement piece 6 is rotated to the stopper portion 3b while sliding on the engagement surface 3a, the engagement piece 6 stops at the engagement position, and the button portion 5 can be maintained in an inclined state. That is, since the stem 7 is maintained in the pressed state, the injection state from the injection port 4 can be maintained.

  The injection maintaining state shown in FIG. 5 can be released by picking the tip 6a of the engagement piece 6 and rotating it in the direction opposite to the arrow E. That is, the aerosol injection device 40 can be switched between the injection maintenance state and the non-injection maintenance state a plurality of times.

  As described above, according to the injection mechanism 30 of the present embodiment, the stem is formed by rotating the engagement piece 6 to the stopper portion 3b while sliding the engagement piece 6 on the engagement surface 3a and pushing the button portion 5 diagonally. 7 is held in the pressed position. Therefore, it is possible to switch to the injection maintenance state relatively easily. Furthermore, by holding the tip 6a of the engagement piece 6 and rotating it in the direction opposite to the arrow E, it is possible to release the injection maintaining state relatively easily. That is, the injection mechanism 30 can be switched between the injection maintenance state and the non-injection state a plurality of times.

  Further, according to the injection mechanism 30 of the present embodiment, in the normal injection state, the fingertip guide recess 12b is a part that guides the user's finger when the button portion 5 is pressed. If one finger is attached, the button unit 5 can be easily pressed.

  Moreover, according to the injection mechanism 30 of the present embodiment, the fingertip guide recess 12b forms a recess wider than the injection gas guide recess 12a. By forming in this way, it is difficult to attach a finger to the narrow injection gas guide recess 12a. Therefore, the user accidentally attaches a finger from the injection gas guide recess 12a side and presses the button part 5 to thereby apply the aerosol container 50. There is no risk of injecting the internal gas to the user.

  Moreover, according to the injection mechanism 30 of this embodiment, by providing the notch part 14 in the cap part 10, it becomes a guidance | induction site | part at the time of raising the engaging piece 6, It is possible to hook a finger | toe easily at the front-end | tip part 6a. is there.

It is a rear view of the injection mechanism in this embodiment. It is a top view of the injection mechanism in this embodiment. It is an AA 'line sectional view of an injection mechanism in this embodiment. It is a figure which shows the normal injection state of the injection mechanism in this embodiment. It is a figure which shows the injection maintenance state of the injection mechanism in this embodiment.

Explanation of symbols

3 engaged portion 3b stopper portion 4 injection port 5 button portion 6 engagement piece 6a tip portion 7 stem 10 cap portion 15 pressing surface 16 stem fitting cylinder 20 shaft 30 injection mechanism 40 aerosol injection device 50 aerosol container

Claims (6)

An injection mechanism fitted to an aerosol container that presses a stem by pressing a button part and injects contents,
A cap portion having fitting means for fitting into the aerosol container;
A button portion provided with an engaged portion protruding substantially on the opposite side of the injection port for injecting the contents;
An engagement piece provided in a part of the cap portion that engages with an engagement surface of the engaged portion;
A stopper portion protruding from one end of the engagement surface,
The injection is characterized in that the button portion is pushed down obliquely by rotating the engagement piece to the stopper portion while sliding on the engagement surface, and the stem is depressed to hold the stem in the depressed position. mechanism.   The injection mechanism according to claim 1, wherein the engagement piece has a plate shape.   The injection mechanism according to claim 1, wherein the engagement piece is provided below a pressing surface of the button part in a normal injection state.   The injection mechanism according to claim 1, wherein the engagement piece is formed so as to be inclined from a substantially center of the injection mechanism toward a peripheral edge of the cap portion.   The injection mechanism according to claim 1, wherein a notch portion is formed in the cap portion adjacent to the engagement piece. An aerosol injection apparatus comprising the injection mechanism according to any one of claims 1 to 5.

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