JP4116010B2 - Aerosol container pushbutton and aerosol product with the same - Google Patents

Description

  The present invention relates to a push button for an aerosol container and an aerosol type product including the push button, particularly when the pressure inside the container body is high at the initial stage of use or when the pressure inside the container body is reduced by subsequent use. In any case, the present invention relates to an aerosol container push button or the like having a flow rate adjusting function so that the amount of contents discharged per unit time does not fluctuate significantly.

  In general, an aerosol container to which an internal pressure is applied by a compressed gas such as nitrogen, carbon dioxide gas, air, etc. has a content per unit time when the content is released in the initial stage of use and when the content is released after a certain amount is released The amount of discharge of the contents is different, and the gas pressure is high for a certain period from the beginning of use, so that the contents more than necessary are discharged. Therefore, as disclosed in Japanese Utility Model Publication No. 5-61083, the amount of the contents released The thing provided with the function to adjust is disclosed.

  Japanese Utility Model Laid-Open No. 5-61083 discloses a sliding member set in a space for passage of contents formed inside a push button. This sliding member is a flow of contents. It moves against the urging force of the cylindrical coil in response to the pressure, and restricts the inflow of contents into the space.

  When the pressure of the contents is high, the peristaltic member moves due to the urging of the cylindrical coil due to the pressure, thereby restricting the inflow of the contents into the space portion. Opening and closing operations of the space portion, such as movement of the peristaltic member to cause the contents to flow into the space portion, are repeated to limit the amount of the content released per unit time.

  Therefore, when the pressure of the contents is low, the peristaltic member does not move and the space remains open, so that the amount of the contents discharged per unit time does not vary significantly from the beginning of use. I am doing so.

  In addition, an air inflow / outflow hole for communicating the space for movement of the sliding member through which the contents do not flow into the external space is formed in the operation portion of the push button.

  In Japanese Utility Model Laid-Open No. 5-61083, the air inflow / outflow hole is blocked by the user's hand when the user presses the push button downward. It has a problem that it does not move smoothly and cannot move.

  Moreover, since the peristaltic member directly receives the flow of the contents sent from the nozzle, the peristaltic member may move above the pressure of the contents due to the momentum of the contents. Since the inflow of contents into the space is restricted more than necessary, there is a problem that a significant fluctuation in the discharge amount per unit time, which is an expected effect, cannot be prevented.

  That is, when the gas pressure inside the container body is high for a certain period from the beginning of use, the amount of discharge per unit time is small because the flow of contents into the space is restricted more than necessary during use. . On the other hand, when the gas pressure has dropped to some extent after a certain period of use, the peristaltic member will not be affected by the flow of the contents, so the contents will pass through the space as scheduled, and as a result, the initial use Many contents will be released.

  Further, since the upstream portion of the peristaltic member, that is, the portion that closes the space portion is not positively positioned, for example, when the peristaltic member moves in an inclined state, the upstream portion closes the space portion. In some cases, it is impossible to regulate the inflow of contents into the space.

  Therefore, in the present invention, even when the operation part of the push button is blocked by the user's hand, a path for connecting the space area for moving the sliding member and the external space is formed. An object of the present invention is to ensure smooth movement of the peristaltic member for flow rate adjustment.

  In addition, the moving flow rate adjustment member does not directly receive the contents sent vigorously, thereby suppressing unnecessary movement of the flow rate adjustment member due to this momentum, and on the upstream side of the flow rate adjustment member. The object is to positively position the part and to reliably close the injection passage.

The present invention solves the above problems as follows.
(1) A flow rate adjusting member (for example, a flow rate adjusting member 11 described later) that moves while resisting a predetermined urging force based on the gas pressure of the aerosol container main body is provided, and this arrangement allows the container main body to move. It is divided into a passage area for injection of contents continuing from the inside (for example, a gap portion 12 described later) and a space area for moving a flow rate adjusting member (for example, a movement space portion 8a described later) in which the contents do not flow. In a push button (for example, a push button 7 described later) having an inner space (for example, a later described inner space 8),
A first hole (for example, a hole 14 described later) for communicating the space with the upper surface side of the operation unit;
An air inflow / outflow recess (for example, a later-described recess 16) communicating with the space is formed on the upper surface of the operation portion in a manner continuous from the first hole.
(2) In (1) above,
Outside the inner space portion, it has another inner open portion (for example, an open portion 18 described later),
A second hole (for example, a hole 17 described later) is formed in the operation portion to allow the air inflow / outlet recess to communicate with the inner open portion.

  The present invention is directed to a push button having such a configuration, and also to an aerosol type product including the push button and containing a gas for injection and contents.

  According to the present invention, a concave portion for discharging and inflowing air that continues from a communication hole for communicating a moving space portion for moving the flow rate adjusting member and the outside is formed on the upper surface of the operation portion. The opening part inside the push button is connected to the opening part, and furthermore, the upper part of the operation button is covered with the finger of the user during use by directly communicating the space part for movement and the inner opening part. Even in such a case, it is possible to ensure the release and inflow of air in the transfer space portion accompanying the movement of the flow rate adjusting member, and the flow rate adjusting member can be operated smoothly. .

  Further, as will be described later, since the guide protrusion is provided on the upstream side portion of the flow rate adjusting member, the upstream side portion is positioned, and even when the flow rate adjusting member is inclined and moved, the injection is performed. By reliably closing the use passage, the flow rate of the contents can be reliably adjusted based on the opening and closing of the injection passage.

  In addition, as will be described later, since the flow direction restricting portion that forcibly changes the flow direction of the content is formed upstream of the flow rate adjustment member, the degree to which the content directly hits the flow rate adjustment member is suppressed. By suppressing unnecessary movement of the flow rate adjustment member due to the momentum of the contents, it is possible to optimize the amount of movement, and in addition to the above effects, the amount of contents released per unit time is the initial use From this, it can be made not to fluctuate significantly.

  In addition, as will be described later, a soft pipe is used as a pipe for taking the contents into the injection passage, and a weight is provided at the tip of the pipe so that the container body is tilted or upside down. Even when this is done, the mouth of the pipe can always be placed in the contents, thereby preventing inadvertent release of the compressed gas in the container body.

An embodiment of the present invention will be described with reference to FIGS.
In the figure, 1 is the container body, 1a is the mountain cap, 1b is the bottom, 2 is the housing, 3 is the pipe, 3a is the mouth, 4 is the stem, 4a is the orifice, 5 is the coil spring, 6 is the packing, 7 is the push Button, 8 is an inner space portion (injection passage), 8a is a moving space portion, 9 is a discharge port, 10 is a cylindrical member, 10a is an end portion (blocked portion), 11 is a flow rate adjusting member, and 11a is Receiving part, 11b is a step part, 11c is a guide projection part, 12 is a gap part, 13 is a coil spring, 14 is a communication hole, 15 is a flow direction restricting part, 16 is a recessed part, 17 is a hole part, and 18 is an open part. , 19 is a weight part, and 20 is a content.

  Here, the container body 1 has a mountain cap 1a assembled to the upper end portion, and the housing 2 is fitted into the central projecting portion of the mountain cap 1a with the packing 6 sandwiched therebetween. And the pipe 3 which the opening part 3a reaches the bottom part 1b in the container main body 1 is attached to the lower part of the housing 2. The pipe 3 is formed of a soft material such as plastic or rubber.

  And in the packing 6, the stem 4 is set in the state which protruded the upper part. The stem 4 is biased upward by a coil spring 5 in the housing 2 so that the orifice 4a is closed by the packing 6 in the non-use mode.

  A push button 7 having a discharge port 9 is attached to the upper portion of the stem 4 so that the stem 4 and the discharge port 9 communicate with each other through the inner space portion 8. The injection passage is a path for contents to the discharge port 9, and is the inside of the housing 2, the stem 4, and the inner space portion 8. The pipe 3 is for taking the contents into these injection passages.

  Further, the cylindrical member 10 is attached to a part of the inner space portion 8, and the flow rate adjusting member 11 is set on the cylindrical member 10 in a movable state. The flow rate adjusting member 11 is provided with a receiving portion 11a in the downstream portion, and the receiving portion 11a abuts on the inner peripheral surface of the push button 7 to form a moving space portion 8a.

  Further, the flow rate adjusting member 11 is urged toward the upstream side of the inner space portion 8, that is, toward the stem 4 by the coil spring 13 installed in the moving space portion 8 a and is received by the cylindrical member 10. At this time, the step portion 11 b of the flow rate adjusting member 11 is in a state of being separated from the upstream end portion 10 a (blocked portion) of the cylindrical member 10, and the cylindrical member 10 and the flow rate adjusting member 11 are separated from each other. The formed gap portion 12 for passing the contents is opened.

  Further, the flow rate adjusting member 11 can move toward the downstream side against the bias of the coil spring 13 until the step portion 11b contacts the end portion 10a. In this state, the gap portion 12 is It becomes a blocked state.

  As shown in FIG. 5, the push button 7 of the present invention is provided with a recess 16 on the upper surface portion so as to form a plurality of standing portions, and the recess 16 and the moving space portion 8 a are connected to the communication hole 14. To connect. Further, the opening portion 18 formed inside the push button 7 and the recess portion 16 are connected by the hole portion 17.

  Thereby, even when the upper surface portion of the push button 7 is covered by the user's finger, the moving space portion 8a and the outside communicate with each other through the communication hole 14-the recess portion 16-the hole portion 17-the open portion 18. In this state, the movement space portion 8a is prevented from becoming a closed space, and the operation of the flow rate adjusting member 11 is performed smoothly.

  In addition, since it is only necessary to ensure the communication state between the moving space portion 8a and the outside, a hole that directly connects the moving space portion 8a and the open portion 18 may be provided instead of the illustrated one. Good (not shown).

  Furthermore, a tapered guide protrusion 11c that abuts against the peripheral surface of the inner space 8 is provided on the upstream side of the step portion 11b of the flow rate adjusting member 11, whereby the flow rate adjusting member is provided. 11 step portions 11b are positioned with respect to the cylindrical member 10. The contents are guided to the gap portion 12 through the liquid passage inside the guide protrusion 11c.

  Next, a flow direction regulating portion 15 is formed in a portion on the upstream side of the flow rate adjusting member 11 in the inner space portion 8 at a portion slightly downstream from the stem 4, and the contents sent from the stem 4. After reaching the flow direction restricting portion 15 and changing its direction to a substantially right angle, the flow rate adjusting member 11 is reached.

  Next, the use state of the present invention will be described. The user pushes down the push button 7 to move the stem 4 downward to enter the use mode. As a result, as shown in FIGS. By leaving, the contents of the container body 1 enter the stem 4 through the pipe 3 -housing 2 -orifice 4 a through a path as indicated by an arrow.

  Then, the contents that have passed through the stem 4 collide with the flow direction restricting portion 15 and change the direction of the flow at a substantially right angle, and then are sent to the flow rate adjusting member 11. That is, the contents whose direction is forcibly changed by the flow direction restricting portion 15 reach the flow rate adjusting member 11 in a state where the degree of momentum is weakened.

  The contents sent through such a route pass through the gap portion 12 and the receiving portion 11a, and then are discharged to the outside from the discharge port 9. At this time, when the gas pressure inside the container body 1 is high as in a certain period from the beginning of use, as shown in FIG. 4, the flow rate adjusting member 11 is such that the receiving portion 11a receives the pressure on the contents. It moves in the downstream direction against the bias of the coil spring 13, and the step portion 11b is received by the end portion 10a.

  Accordingly, the gap portion 12 is closed, and the content does not pass through the gap portion 12. Even when the flow rate adjusting member 11 moves in an inclined state, the upstream side portion of the flow rate adjusting member 11 is positioned by the guide protruding portion 11c, so that the stepped portion 11b and the end portion 10a are accurately positioned. It can be made to contact, and the seal | sticker between both is ensured by this.

  At this time, the volume of the moving space portion 8a is reduced with the movement of the flow rate adjusting member 11, but the air in the moving space portion 8a is discharged to the outside through the communication hole 14, and thus the flow rate. The smooth operation of the adjusting member 11 is not disturbed.

  In this case, even when the upper surface portion of the push button 7 is covered by the user's finger, the air exiting from the communication hole 14 passes through the recess 16 as shown by the dotted arrows in FIGS. 4 and 5. The part 17 enters the open part 18 and is discharged from the open part 18 to the outside.

  Then, when the gap portion 12 is closed, the contents are not sent to the receiving portion 11a, and the pressure in this portion decreases, so that the flow rate adjusting member 11 is restored to its original state by the bias of the coil spring 13. Return to the state. As a result, the gap portion 12 is opened, and the contents are sent to the discharge port 9 again.

  At this time, the volume of the movement space portion 8a once reduced is enlarged, but air is taken in through the communication hole 14, the concave portion 16, the hole portion 17, and the open portion 18 as described above.

Such an operation is repeated during the discharge of the contents while the gas pressure inside the container body 1 is high. Therefore, even when the pressure inside the container body 1 is as high as about 7.5 kg / cm ^{2 at the} initial stage of use, the discharge amount per unit time can be suppressed. However, since the one time for which the gap portion 12 is closed is short, the user is given the same impression as continuous release.

  When the gas pressure inside the container body 1 gradually decreases, the number of times that the flow rate adjusting member 11 is operated decreases. That is, by reducing the number of times that the gap portion 12 is closed and the passage of the contents is stopped, the amount of the contents discharged per unit time is adjusted so as not to vary significantly from the initial use.

Next, after use for a certain period of time, when the gas pressure inside the container body 1 drops (including when the pressure inside the container body 1 reaches the final stage of about 3 kg / cm ² ), the contents Even when the flow reaches the receiving portion 11a of the flow rate adjusting member 11, the flow rate adjusting member 11 does not move.

  Therefore, the flow rate adjusting member 11 is maintained in the state shown in FIGS. 2 and 3, and the contents continuously pass through the gap portion 12 and are discharged to the outside from the discharge port 9. In addition, since the flow speed of the content passing through the gap portion 12 is slower than when the pressure inside the container body is high, the amount of the content passing per unit time does not vary significantly.

  Next, as shown in FIG. 6, a weight portion 19 is set at the mouth portion 3 a of the pipe 3. This setting is performed by inserting the pipe 3 inside the weight portion 19 and inserting the protrusion provided on the inner surface of the weight portion 19 into the surface of the pipe 3. Due to the softness of the pipe 3, the mouth 3 a is always placed in the contents 20 by the weight portion 19 even when the container body 1 is tilted or tilted sideways, or even when the container is turned upside down. I try to position it.

  That is, the pressure of the vaporized gas compressed in the container body 1 is significantly reduced by use. In addition, if the vaporized gas is taken from the mouth 3a and directly discharged to the outside, the pressure is further reduced. This is because, in combination with the above-described flow rate adjustment function, by preventing the direct release of the vaporized gas, stable release of the contents until the later stage of use is ensured. In addition, the shape of the weight part 19 is not limited to the thing of illustration, For example, a spherical shape may be sufficient.

It is sectional drawing which shows the aerosol container provided with the flow volume adjustment function of this invention. It is sectional drawing which shows a state when the contents are discharge | released. It is sectional drawing to which the principal part of the state shown in FIG. 2 was expanded. It is sectional drawing to which the principal part of the state in which discharge | release of the content was controlled is expanded. It is a perspective view of a push button. Overall state of use of aerosol container with flow rate adjustment function of the present invention

Explanation of symbols

1: Container body 1a: Mountain cap 1b: Bottom part 2: Housing 3: Suction pipe 3a: Mouth part 4: Stem 4a: Orifice 5: Coil spring 6: Packing 7: Push button 8: Inner space (injection passage)
8a: Movement space portion 9: Release port 10: Cylindrical member 10a: End portion (blocked portion)
11: Flow rate adjusting member 11a: Receiving part 11b: Step part 11c: Guide protruding part 12: Gap part 13: Coil spring 14: Hole part 15: Flow direction regulating part 16: Concave part 17: Hole part 18: Open part 19 : Weight part 20: Contents

Claims (3)

A flow rate adjusting member that moves while resisting a predetermined urging force based on the gas pressure of the aerosol container body is provided, and this arrangement allows a passage area for contents injection and a content to continue from the inside of the container body. In the push button with the inner space part, which is divided into the space area for moving the flow rate adjustment member that does not flow in,
A first hole for communicating the space with the upper surface side of the operation unit;
On the upper surface of the operation portion, an air inflow and outflow recess that leads to the space area is formed in a form continuous from the first hole portion,
The push button of the aerosol container characterized by the above. Outside the inner space part, there is another inner opening part,
In the operation portion, a second hole portion is formed for communicating the air inflow / outlet recess portion with the inner open portion.
The push button for an aerosol container according to claim 1. The push button according to claim 1 or 2 is provided, and the gas for injection and the contents are accommodated.
Aerosol type product characterized by that.

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