JP2005153906A - Jet device for aerosol container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a jet device for an aerosol container, which does not change a jet direction of a content when a gas is vented from an aerosol container to be scrapped. <P>SOLUTION: The jet device comprises a pressbutton 1, which is fitted to a stem 44 of the aerosol container 4 and has a projected part 13 projecting opposite to the stem 44, and a locking ring 2, which is fitted turnably on the aerosol container 4 and has a locking part 22 projecting toward the stem 44. When the pressbutton 1 is depressed against an energy applying force of a spring built into the aerosol container 4 and the locking ring 2 is turned, the projected part 13 of the pressbutton 1 is locked onto the locking part 22 of the locking ring 2, which maintains the depressed state of the pressbutton 1. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an aerosol container injection device, and more specifically, the contents of cosmetics, paints, insecticides and the like are injected from the injection hole of the push button by pushing the push button against the spring biasing force of the aerosol container. In addition, the present invention relates to an aerosol container injection device capable of degassing by keeping the push button depressed when the aerosol container is discarded.

  Conventionally, the thing of patent document 1 is known as an injection device which degass by maintaining a pushbutton in a pressed-down state. However, in this injection device, the push button is pushed down to eject the contents, and the push button is rotated with respect to the aerosol container to perform degassing. The injection direction would change, and the contents could be on the operator.

In addition, when degassing, it was necessary to simultaneously push down the pushbutton and twist it. It was necessary to operate with great force. Conventional injection devices have to be operated with a force applied to the fingertips while paying attention to the degassing injection direction, which is difficult in terms of operability and reliability of the degassing operation.
Japanese Utility Model Publication No. 6-47176

  The present invention was made in view of the above-described drawbacks of conventional aerosol container injection devices, and provides an injection device in which the content injection direction does not change during the degassing operation. There is to do.

  Another technical problem of the present invention is to provide an injection device that is excellent in operability of the degassing operation and that anyone can easily and reliably degas.

The present invention is an injection device for injecting the contents of an aerosol container by pushing down the stem of the aerosol container against the biasing force of a spring built in the aerosol container,
A push button that is attached to the stem and includes a protrusion that protrudes to the opposite side of the stem at a lower portion of a nozzle member having an injection hole for injecting the contents;
A locking ring that is rotatably attached to the aerosol container about the stem, and includes a locking portion that protrudes toward the stem on the inner periphery of a ring member that surrounds the push button;
Consisting of
By depressing the push button against the spring biasing force of the aerosol container and rotating the lock ring with respect to the push button, the protrusion of the push button is engaged with the lock portion of the lock ring. The push button is stopped and the pressed state of the push button is maintained.

  Further, the present invention relates to the engagement of the locking ring when the push button that moves up and down with respect to the aerosol container is located between the highest position where the contents are not ejected and the middle position where the contents are normally ejected. The stop portion abuts against the protrusion of the push button to prevent the locking ring from rotating.

  Further, the present invention is characterized in that the push button and the locking ring are detachably connected.

  Further, the present invention is characterized in that the push button and the locking ring are integrally formed of a synthetic resin material via a severable connecting member.

  According to the spray device for an aerosol container according to the present invention, after the push button is pushed down, the push ring can be maintained in the push-down jet state by rotating the locking ring instead of the push button. Unlike the apparatus, there is no need to rotate the push button in the injection state, and the injection direction of the contents does not change. Therefore, there is no fear that the contents will be applied to the operator during the degassing operation, and the degassing operation can be performed with peace of mind.

  Moreover, according to the injection device according to the present invention, the gas can be vented by sequentially performing two independent operations of the push button pressing operation and the locking ring rotating operation. The degassing operation can be performed easily and reliably. In the case of the injection device of the present invention, as in normal injection, put the index finger on the push button, hold the aerosol container with the thumb and other fingers, press down the push button with the index finger, and hold the locking ring with the other hand If it is turned, the gas can be easily vented, and the operability and reliability of the gas venting operation are greatly improved compared to the conventional device that had to be operated by holding the push button with one hand. be able to.

  Further, when the push button is between the highest position where the contents are not ejected and the lower intermediate position where the contents are normally ejected, the retaining portion of the retaining ring is configured to abut against the protrusion of the push button. According to the injection device, the rotation of the locking ring can be prevented at the time of normal injection, and there is no possibility that the push button is erroneously maintained in the depressed state.

  Moreover, according to the injection device in which the push button and the locking ring are detachably connected, there is no possibility that the push button is pushed down and the contents are injected when not intended. Since the contents cannot be ejected unless the push button and the locking ring are intentionally separated, it is possible to eliminate the need for the cap of the spray container.

  Further, the injection device according to the present invention has a very simple structure, and if the injection button is integrally formed by injection molding via a connecting member capable of cutting the push button and the locking ring, the manufacturing cost can be kept low. be able to.

  Moreover, since the injection device according to the present invention can be easily attached to a well-known aerosol container, it can be applied to a conventional aerosol container as long as the injection device is prepared, and can be applied to a plurality of aerosol containers. can do. Therefore, the aerosol container can be provided to the market without the push button attached, and the hand-held injection device can be attached to the aerosol container for use, which can contribute to resource saving.

  Hereinafter, an embodiment of an aerosol container injection device according to the present invention will be described with reference to FIGS. As shown in FIG. 1, the injection device 10 of the present embodiment includes a push button 1, a locking ring 2, and a connecting member 3 that connects the push button 1 and the locking ring 2. And it is attached to the upper part of the well-known aerosol container 4. FIG.

  As shown in FIG. 1, the aerosol container 4 has a container body 41 for storing contents such as cosmetics to be sprayed and a top dome 42 connected in an airtight state by an outer winding portion 43. The valve unit 45 including the stem 44 is connected in an airtight state by an inner winding portion 46. By pushing down the stem 44 of the aerosol container 4 against the biasing force of a spring (not shown) built in the valve unit 45, the contents are injected through the stem 44.

  As shown in FIG. 1, the push button 1 of the injection device 10 is composed of a synthetic resin nozzle member that can be attached to the stem 44 of the aerosol container 4. The stem 44 can be inserted into the lower surface of the push button 1. Attaching hole 11 is provided, and an injection hole 12 communicating with fixing hole 11 is provided on the upper side surface of push button 1. A protrusion 13 is partially formed on the outer periphery of the lower part of the push button 1. The protrusion 13 is formed so as to protrude to the opposite side of the stem 44 in a state in which the push button 1 is attached to the stem 44. In this embodiment, the protrusion 13 is opposite to the injection hole 12 side. Two protrusions 13 are formed on the side.

  As shown in FIG. 1, the locking ring 2 is rotatably attached to a winding portion 46 of the aerosol container 4 and is composed of a synthetic resin ring member surrounding the push button 1. The locking ring 2 of the present embodiment has a short cylindrical shape, and a total of three attachment projections 21 are formed at equal intervals on the lower part of the inner surface of the cylinder. By engaging these attachment protrusions 21 with the outer recesses of the tightening portion 46, the locking ring 2 is attached to be rotatable about the stem 44. In addition, a locking portion 22 that protrudes partially is formed on the inner periphery of the locking ring 2. The locking portion 22 is formed so as to protrude toward the stem 44 side with respect to the other portion of the inner periphery of the ring in a state where the locking ring 2 is attached to the winding tightening portion 46. Two locking portions 22 are formed.

  As shown in FIG. 1, the connecting member 3 is composed of a synthetic resin thin rod material that connects the push button 1 and a locking ring 2 surrounding the push button 1. As shown in FIG. 1B, the connecting member 3 does not interfere with the projection 13 of the push button 1 and the locking portion 22 of the locking ring 2, and as shown in FIG. When the push button 1 and the locking ring 2 are attached to the aerosol container 4, the push button 1 and the locking ring 2 are connected while maintaining the positional relationship in which the push button 1 is at the highest position. Moreover, this connection member 3 is formed so that cutting is possible, and when injecting the contents, the connection member 3 can be cut | disconnected and the pushbutton 1 and the locking ring 2 can be isolate | separated. In this embodiment, the tip of each protrusion 13 of the push button 1 and the portion other than the locking portion 22 in the locking ring 2 are connected by the connecting member 3. The connecting member 3 is integrally formed of a synthetic resin material by injection molding.

  Hereinafter, the usage method of the injection apparatus 10 of this embodiment is demonstrated, referring FIGS. 1-3.

  As shown in FIG. 1, in the injection device 10 of the present embodiment, the push button 1 and the locking ring 2 are initially connected integrally by the connecting member 3, and the push button 1 is pushed down and the contents cannot be injected. It is in a state.

  When injecting the contents, the push button 1 is pressed strongly to break the connecting member 3 so that the push button 1 can move up and down with respect to the aerosol container 4. And as shown in FIG. 2, the content is injected by pushing down the pushbutton 1 as needed. In addition, in the injection device 10 of the present embodiment, the push button 1 is between the highest position where the contents are not injected (see FIG. 1) and the lower intermediate position where the contents are normally injected (see FIG. 2). When the upper surface level S of the protrusion 13 of the push button 1 is higher than the lower surface level T of the engagement portion 22 of the engagement ring 2, the protrusion 13 and the engagement portion 22 are maintained in a positional relationship. Is formed. Therefore, at the time of normal injection, the side portion of the locking portion 22 of the locking ring 2 abuts against the protrusion 13 of the push button 1 and the rotation of the locking ring 2 is prevented.

  In the injection device 10, when degassing, the push button 1 is pushed down to the lowest position where it hits the valve unit 45, and then the locking ring 2 is rotated about 90 degrees with respect to the push button 1 and the aerosol container 4, The locking portion 22 of the locking ring 2 is engaged with the upper surface of the protrusion 13 of the push button 1 (see FIG. 3). The locking portion 22 maintains the depressed state of the push button 1 and the contents are ejected to the end.

  Thus, according to the injection device 10 of the present embodiment, after the push button 1 is pressed down, the push button 1 is maintained in the pressed down injection state by rotating the locking ring 2 instead of the push button 1. Therefore, unlike the conventional apparatus, there is no need to rotate the push button in the injection state, and the injection direction of the contents does not change. Therefore, there is no fear that the contents will be applied to the operator during the degassing operation, and the degassing can be performed with peace of mind.

  Moreover, according to the injection device 10 of the present embodiment, it is possible to degas by sequentially performing two independent operations of the push-down operation of the push button 1 and the rotation operation of the locking ring 2. Anyone can perform the degassing work easily and reliably. In the case of this injection device 10, as with normal injection, the index finger is put on the push button 1, while holding the aerosol container 4 with the thumb and other fingers, the push button 1 is pushed down with the index finger and locked with the other hand. If the ring 2 is rotated, the gas can be easily vented, and the operability and reliability of the gas venting operation are markedly improved compared to the conventional device that had to be operated by holding the push button with one hand. Can be improved.

  Further, according to the injection device 10 of the present embodiment, the locking portion 22 of the locking ring 2 is engaged with the protruding portion 13 of the push button 1 to perform gas venting. It can be easily confirmed whether or not the gas has been degassed only by visually observing whether 13 is exposed to the outside or covered with the locking portion 22. In this case, it is preferable that the push button 1 and the locking ring 2 are colored in different colors because they are more easily visible. When the push button 1, the locking ring 2, and the connecting member 3 are integrally formed, the injection device may be formed by two-color injection molding.

  Further, in the injection device 10 of the present embodiment, since the push button 1 is initially connected to the locking ring 2 via the connecting member 3, the push button 1 is pushed down and the contents are injected when not intended. There is no fear of it. Since the contents cannot be ejected unless the connecting member 3 is intentionally broken, the cap of the spray container 4 can be eliminated. Moreover, since the structure of the injection device 10 of the present embodiment is extremely simple, and the push button 1 and the locking ring 2 are integrally formed by injection molding via the connecting member 3 that can be cut, The manufacturing cost can be kept low.

  Furthermore, since the injection device 10 of the present embodiment is configured so that the side portion of the locking portion 22 of the locking ring 2 abuts the protrusion 13 of the push button 1 when normally injecting the contents. The rotation of the locking ring 2 can be prevented, and there is no fear that the push button 1 is erroneously maintained in the depressed state during normal injection.

  Furthermore, since the injection device 10 of the present embodiment can be easily attached to the well-known aerosol container 4 having the winding portion 46, the injection device 10 can be applied to a conventional aerosol container as long as the injection device 10 is prepared. It can also be applied to a plurality of aerosol containers. Therefore, the aerosol container can be provided to the market without the push button attached, and the hand-held injection device 10 can be used by being attached to the aerosol container, which can contribute to resource saving.

  As mentioned above, although typical embodiment was described about the injection apparatus of the aerosol container which concerns on this invention, the injection apparatus which concerns on this invention can also be implemented with another form.

  For example, in the said embodiment, although the pushbutton 1 and the latching ring 2 are partially connected by the connection member 3 of a thin bar material, this invention is not limited to this. For example, like the injection device 20 shown in FIG. 4, the push button 1 and the locking ring 5 may be connected by a detachable connecting member 6. The connecting member 6 connects the lower outer periphery of the push button 1 including the protruding portion 13 and the inner periphery of the locking ring 5 including the locking portion 52 over the entire periphery by a thin portion 61 that can be easily cut. The push button 1, the locking ring 5, and the connecting member 6 are integrally formed of a synthetic resin material by injection molding. What is indicated by reference numeral 62 is a tab formed at the end of the connecting member 6.

  In the injection device 20, when injecting the contents, if the tab 62 is picked and pulled, the thin-walled portion 61 is cut and the connecting member 6 can be easily removed, and the push button 1 is moved away from the aerosol container 4. It is possible to move up and down. In this state, the push button 1 is pushed down as necessary to inject the contents. As described above, in the injection device 20, since the push button 1 and the locking ring 5 are initially connected without a gap, it is possible to prevent dust from entering the inside of the injection device 20 without covering the aerosol container 4 with a cap. be able to. Note that perforations may be formed in place of the thin portion 61.

  Moreover, in the said embodiment, although the locking ring 2 is attached to the winding fastening part 46 inside the aerosol container 4, like the injection apparatus 20 shown in FIG. 4, the attachment protrusion 51 of the locking ring 5 is attached to the aerosol container. You may make it engage with the outer side recessed part of the outer side winding fastening part 43 of 4. As shown in FIG. Moreover, you may make it attach a latching ring to the inner side recessed part of the inner side winding fastening part 46, or the inner side recessed part of the outer side winding fastening part 43 so that rotation is possible. Thus, when attaching a locking ring to the inner side of a winding fastening part, it is necessary to form an attachment protrusion on the lower outer periphery of the locking ring. Furthermore, a fixing ring may be fixed to the winding portion of the aerosol container, and the locking ring may be rotatably attached to the fixing ring.

  Furthermore, in the above embodiment, the connecting member 3 is integrally connected to the push button 1 and the locking ring 2. However, the present invention is of course not limited to this, for example, an injection device shown in FIG. 30, the synthetic resin push button 1 and the metal locking ring 7 may be connected by a detachable connecting member 8. One end of the connecting member 8 is integrally connected to the push button 1 by the thin portion 81, and a fitting recess 82 is formed on the other end side so that the upper portion of the locking ring 7 is sandwiched and connected. Yes. What is indicated by reference numeral 83 is a tab formed on the connecting member 8. Also, what is indicated by reference numeral 72 is a locking portion formed on the inner periphery of the locking ring 7.

  In the injection device 30, when the contents are injected, if the tab 83 is picked and pulled, the thin portion 81 is cut and the fitting recess 82 is detached from the locking ring 7, so that the connecting member 8 can be easily removed. The push button 1 can be moved up and down with respect to the aerosol container 4. In this state, the push button 1 is pushed down as necessary to inject the contents. Thus, according to the injection device 30, the push button 1 and the locking ring 7 can be formed of different materials. The push button 1 and the locking ring 7 may be detachably connected by a plurality of connecting members 8.

  Furthermore, in the above embodiment, the two protrusions 13 are formed at the lower part of the push button 1 and the two locking parts 22 are formed at the upper part of the locking ring 2. However, it is possible to form one or three or more, and it is not always necessary to form the same number of protrusions and locking portions. The push button can be moved up and down in the locking ring during normal injection, and it is only necessary to rotate the locking ring and lock the protrusion of the push button with the locking portion when degassing. .

  The present invention can be carried out in a mode in which various improvements, modifications and variations are added based on the knowledge of those skilled in the art without departing from the spirit of the present invention. In addition, within a range where the same action or effect is produced, any invention specific matter may be replaced with another technology, and the integrally configured invention specific matter may be made up of a plurality of members. Even if comprised, you may implement with the form which comprised the invention specific matter comprised from the several member integrally.

It is a figure which shows the state at the time of the non-injection of the injection apparatus of the aerosol container which concerns on this invention, the figure (a) is a partial cross section side view, and the figure (b) is a top view. It is a partial cross section side view at the time of normal injection of the injection device. It is a figure which shows the state at the time of degassing of the injection device, the figure (a) is a partial cross section side view, and the figure (b) is a top view. It is a figure which shows the modification of the injection apparatus of the aerosol container which concerns on this invention, The figure (a) is a partial cross-sectional side view at the time of non-injection, The figure (b) is a top view at the time of non-injection. It is a figure which shows the other modification of the injection apparatus of the aerosol container which concerns on this invention, The figure (a) is a partial cross-sectional side view at the time of non-injection, The figure (b) is a top view at the time of non-injection is there.

Explanation of symbols

10, 20, 30 Injection device 1 Push button 11 Fastening hole 12 Injection hole 13 Protrusion 2, 5, 7 Locking ring 21, 51 Mounting protrusion 22, 52, 72 Locking 3, 6, 8 Connecting member 4 Aerosol Container 44 Stem 43 Outer winding tightening portion 46 Inner winding tightening portion

Claims (4)

An injection device for injecting the contents of an aerosol container by pushing down the stem of the aerosol container against a biasing force of a spring built in the aerosol container,
A push button that is attached to the stem and includes a protrusion that protrudes to the opposite side of the stem at a lower portion of a nozzle member having an injection hole for injecting the contents;
A locking ring that is rotatably attached to the aerosol container about the stem, and includes a locking portion that protrudes toward the stem on the inner periphery of a ring member that surrounds the push button;
Consisting of
By depressing the push button against the spring biasing force of the aerosol container and rotating the lock ring with respect to the push button, the protrusion of the push button is engaged with the lock portion of the lock ring. An aerosol container spraying device characterized in that the push button is stopped and the pushed-down state is maintained.   When the push button that moves up and down with respect to the aerosol container is between the highest position where the contents are not ejected and the lower intermediate position where the contents are normally ejected, the retaining portion of the retaining ring is the push button. The aerosol container injection device according to claim 1, wherein the locking ring is prevented from rotating by abutting against the protrusion of the container.   The spray device of the aerosol container of Claim 1 or Claim 2 with which the said pushbutton and the said locking ring are connected so that isolation | separation is possible. The aerosol container injection device according to any one of claims 1 to 3, wherein the push button and the locking ring are integrally formed of a synthetic resin material via a severable connecting member.

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