JPH078273U - Air container with flow rate adjustment function - Google Patents

Abstract

(57) [Summary] [Purpose] The objective is to prevent the flow of contents from directly colliding with the flow rate adjusting member with the same force and moving it instantaneously. [Structure] A flow rate adjusting member 11 that moves against the bias of a coil spring 13 under the pressure of the content from the container body 1 is provided in a part of the injection passage 8, and this flow rate adjusting member is provided.
The clearance portion 12 between the injection passage 8 and the injection passage 8 has a flow rate adjusting function that reduces the cross-sectional area of the passage of the contents according to the amount of movement of the flow rate adjusting member 11. In the container, a flow direction regulating member 15 for forcibly changing the flow of the contents advancing toward the flow rate adjusting member 11 at a portion of the injection passage 8 on the upstream side of the position of the flow rate adjusting member 11. Is formed to suppress the extent that the flow of the contents directly collides with the flow rate adjusting member 11.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an aerosol container, and more particularly, in a direction against the bias by receiving the pressure of the contents from the container body in a part of the injection passage that connects the inside of the container body and the discharge port. When providing a moving flow rate adjusting member, at least a part of the gap between the flow rate adjusting member and the injection passage is defined as the cross-sectional area for the contents to pass through in the direction of the flow rate adjusting member. The present invention relates to an aerosol container having a flow rate adjusting function in which the flow amount is adjusted according to the amount of movement to the container.

[0002]

[Prior art]

 In general, in an aerosol container, a compressed gas such as nitrogen, carbon dioxide gas, or air is used instead of the CFC gas used to apply the internal pressure. Since the gas pressure is high at the initial stage of use and more than necessary contents are released, the applicant of the present invention has filed the application No. 4-21297 “Azol container valve” and the application No. 4-36176 “Azo. -A push button for a container ", each of which has a function of adjusting the discharge amount of the contents is disclosed.

The one described in Japanese Patent Application No. 4-21297 discloses a flow rate adjusting valve which is urged toward an inflow hole and movable inside a housing, and a flow rate adjusting valve which moves toward the stem. The flow control valve is provided with a flow control recess formed on the inner peripheral surface of the housing so that the gap between the flow control valve and the flow control valve will gradually decrease when the flow control valve moves. It moves toward the stem so that the gap changes.

Further, in Japanese Patent Application No. 4-36174, a part of the injection passage is provided with an elastic moving wall portion and an inelastic fixed wall portion in a state where they are opposed to each other. In addition, the former is arranged so that it is on the upstream side of the flow of the contents, and a flow rate adjusting passage part sandwiched between the respective wall parts is provided, and the moving wall part is separated from the contents. It moves toward the fixed wall part according to the force received and changes the cross-sectional area of the flow rate adjusting passage part.

That is, when the flow rate adjusting valve and the moving wall portion receive the pressure of the contents, the cross-sectional area of the gap and the flow rate adjusting passage portion are reduced while the gas pressure is high, and the cross-sectional area is constant. When the gas pressure drops to some extent after a certain period of use, the cross-sectional area of the gap and the flow rate adjusting passage is enlarged so that the passage of contents per unit time becomes constant.

[0006]

[Problems to be solved by the device]

 However, in the cases described in Japanese Patent Application Nos. 4-21297 and 4-36174, the flow rate adjusting valve and the moving wall portion directly receive the flow of the contents sent from the upstream side. As a result, the momentum of this content may cause it to move more than the pressure on the upstream side, which makes the cross-sectional area of the gap and the flow rate adjustment passage part smaller than necessary. There is a problem in that it is not possible to achieve the desired effect of stabilizing the amount released per unit time because the amount of contents passed is regulated.

That is, when the gas pressure inside the container main body is high in the initial stage of use, the cross-sectional area of the gap and the flow rate adjusting passage becomes smaller than necessary during use, so the amount released per unit time is reduced. Although the amount becomes small, when the gas pressure drops to some extent after a certain period of use, the flow rate adjustment valve and the moving wall part will not be affected by the flow of the contents being sent, so it was initially planned. The flow rate will pass through the flow control passage, and as a result, more content will be discharged than at the beginning of use.

In view of this, in the present invention, the moving flow rate adjusting member does not directly receive the contents that are being sent in a vigorous manner, thereby suppressing unnecessary movement of the flow rate adjusting member due to this momentum. An object of the present invention is to provide an aerosol container having a flow rate adjusting function that can keep the amount of contents released per unit time constant even after a lapse of a certain period from the initial stage of use. To do.

[0009]

[Means for Solving the Problems]

 The present invention, as described above, has an air flow adjusting function that reduces the cross-sectional area of the gap between the flow rate adjusting member and the injection passage according to the amount of movement of the flow rate adjusting member. In the container, a flow direction regulating member for forcibly changing the flow of the contents advancing toward the flow rate adjusting member in the portion of the injection passage upstream of the position of the flow rate adjusting member. Are formed.

[0010]

[Action]

 As described above, since the flow direction regulating member is provided at the upstream side of the flow rate regulating member, the content that moves toward this flow rate regulating member has its direction forced by the flow direction regulating member. To reach the flow rate adjusting member after being changed, so that the content does not vigorously hit the flow rate adjusting member and the flow of the content directly collides with the flow rate adjusting member. I am trying.

However, the extent to which the content collides with the flow rate adjusting member is suppressed, and during use, the pressure on the upstream side of the flow rate adjusting member becomes sufficiently high depending on the content to be sent, so at the beginning of use, etc. Therefore, the flow rate adjusting member moves to reduce the cross-sectional area of the gap. At this time, since the flow of the contents passing through the gap portion is fast, the amount of the contents passing per unit time does not significantly change as compared with the case where the gas pressure inside the container body is low.

[0012]

【Example】

 An embodiment of the present invention will be described with reference to FIGS. In the figure, 1 is a container body, 1a is a mountain cap, 2 is a housing, 3 is a suction pipe, 4 is a stem, 4a is an orifice, 5 is a coil spring, 6 is packing, 7 is a push button, and 8 is a passage for injection. , 9 is a discharge port, 10 is a tubular member, 10a is an end portion, 11 is a flow rate adjusting member, 11a is a stepped portion, 11b is a collar portion, 12 is a gap portion, 13 is a coil spring, 14 is a hole portion, Reference numeral 15 is a flow direction regulating member.

Here, the container body 1 has a mountain cap 1a assembled to the upper end portion thereof, and the housing 2 is fitted to the central protruding portion of the mountain cap 1a with the packing 6 sandwiched therebetween. A suction pipe 3 continuing from the inside of the container body 1 is attached to the lower portion of the housing 2, and a stem 4 is fitted to the packing 6 with its upper portion protruding.

The stem 4 is biased upward by a coil spring 5 in the housing 2, and the orifice 4 a is closed by a 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 via an injection passage 8. In addition, the injection passage 8 is between the inside of the container body 1 and the discharge port 9, that is, between the suction pipe 3-the housing 2-the stem 4-the push button 7.

A tubular member 10 is attached to a part of the injection passage 8 of the push button 7, and a flow rate adjusting member 11 is slidably fitted into the tubular member 10. There is. The flow rate adjusting member 11 is urged by the coil spring 13 toward the upstream side of the injection passage 8, that is, toward the stem 4, and the stepped portion 11a abuts against the end of the tubular member 10 to form the tubular shape. It is received by the member 10 and can move toward the downstream side against the bias of the coil spring 13.

Further, in the flow rate adjusting member 11, a portion which is on the downstream side and comes into contact with the end portion 10a of the tubular member 10 from the flange portion 11b formed at the upstream end portion is recessed, and the end portion 10a A gap portion 12 is provided between and. The gap portion 12 is formed so as to be gradually deeper toward the downstream side, and the contents from the container body 1 pass through.

Next, a hole portion 14 for guiding the contents from the stem 4 is provided in a portion of the injection passage 8 on the upstream side of the flow rate adjusting member 11, and is slightly separated from the hole portion 14. Further, a flow direction regulating member 15 slightly larger than the hole 14 is formed in the downstream side portion, and after the content passing through the hole 14 hits the flow direction regulating member 15 and changes 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. First, when the gas pressure inside the container body 1 is high at the beginning of use, as shown in FIGS. 2 and 3, the push button 7 is pushed down. When the stem 2 is moved downwards by moving the orifice 4a away from the packing 6, the content of the container body 1 passes through the suction pipe 3-housing 2-orifice 4a, and the stem 4 moves along the path indicated by the arrow. Go in.

Then, the contents that have moved to the stem 4 pass through the hole 14 and then collide with the flow direction control member 15 to change the direction of the flow at a substantially right angle, and then toward the flow rate adjusting member 11. Sent. That is, the contents whose direction is forcibly changed by the flow direction restricting member 15 reach the flow rate adjusting member 11 in a state in which the degree of the momentum is weakened.

Since the contents sent through such a route increase the pressure on the upstream side of the flow rate adjusting member 11, the flow rate adjusting member 11 is urged by the coil spring 13 as shown in FIG. The flange portion 11b is moved toward the downstream side against the force, and the collar portion 11b is received by the end portion 10a. Therefore, the content is regulated in its passing amount by passing through the gap portion 12 whose width is narrowed to L _1, and then discharged from the discharge port 9 to the outside.

When the push button 7 is returned to the non-use mode and the orifice 4a is closed by the packing 6, the portion of the injection passage 8 on the upstream side of the flow rate adjusting member 11 communicates with the outside. The force received from the object disappears, and the flow rate adjusting member 11 that has moved to the downstream side returns to the state of FIG. 1 in which the original stepped portion 11a is received by the tubular member 10 by the bias of the coil spring 13.

Such an operation is repeated each time a discharging operation is performed in a state where the gas pressure inside the container body 1 is sufficiently high. When the gas pressure inside the container body 1 gradually decreases, the flow rate adjusting member 11 is placed on the downstream side until the pressure of the contents on the upstream side of the flow rate adjusting member 11 and the bias of the coil spring 13 are balanced. Will be moved to. At this time, the width of the gap portion 12 is slightly larger than L ₁ .

By the way, in order to achieve the effect of this adjusting function, the biasing force of the coil spring 13 is set to the gas pressure inside the container body 1 in the unused state as the maximum load, and the flow rate adjusting member that receives this maximum load is used. It is necessary to use the one that is fully compressed by 11, for example, the one in which the compression occurs when the pressure of the content is about 4 kg / cm ² or more, and the total compression occurs when the content pressure is about 8 kg / cm ^2. Is used.

Next, when the gas pressure inside the container body 1 is decreased after using for a certain period of time, for example, when the pressure inside the container body 1 is about 4 kg / cm ² or less, FIG. As shown in FIG. 5, even when the push button 7 is pushed down and the contents reach the flow rate adjusting member 11, the flow rate adjusting member 11 does not move from the state shown in FIG.

Therefore, the content passes through the gap portion 12 having a wide width of L ₂ and is discharged to the outside through the discharge port 9. At this time, since the flow speed of the contents passing through the gap portion 12 is slower than the flow speed of the contents at the beginning of use, the contents per unit time when the width of the gap portion 12 is L ₁ . There is no significant difference between the passing amount and the passing amount of the contents per unit time at L ₂ .

The shape of the gap portion 12 is not limited to that shown in the figure, and any shape may be used as long as the width, that is, the cross-sectional area is widened by the movement of the flow rate adjusting member 11. Further, instead of the one shown in the drawing, for example, a part of the tubular member 10 may be recessed to form the gap portion 12 between the tubular member 10 and the flow rate adjusting member 11.

Further, the flow rate adjusting function (gap portion 12 using the flow rate adjusting member 11) as shown is not limited to being provided in the push button 7, and may be provided in the housing 2 upstream of the stem 4. Alternatively, in this case also, the flow direction regulating member 15 is provided on the upstream side of the flow rate adjusting member 11 so as to prevent the content from the suction pipe 3 from directly colliding with the flow rate adjusting member 11. .

[0028]

[Effect of device]

 According to the present invention, a flow direction regulating member for forcibly changing the flow direction of the contents is formed in a portion of the injection passage upstream of the flow amount adjusting member. Since the amount of direct collision with the content is suppressed, unnecessary movement of the flow rate adjusting member due to the momentum of the content is suppressed, and the amount of movement is optimized, so that the content per unit time The release amount can be kept constant even after a lapse of a certain period from the beginning of use.

[Brief description of drawings]

FIG. 1 is a sectional view showing an aerosol container having a flow rate adjusting function according to the present invention.

FIG. 2 is a cross-sectional view showing a state where the flow rate adjustment of the embodiment of the present invention is being performed.

FIG. 3 is an enlarged cross-sectional view of a main part in the state shown in FIG.

FIG. 4 is a cross-sectional view showing a state in which the flow rate is not adjusted according to the embodiment of the present invention.

5 is an enlarged cross-sectional view of the main part in the state shown in FIG.

[Explanation of symbols]

 1 ... Container body 1a ... Mountain cap 2 ... Housing 3 ... Suction pipe 4 ... Stem 4a ... Orifice 5 ... Coil spring 6 ... Packing 7 ... Push button 8・ ・ ・ Injection passage 9 ・ ・ ・ Discharge port 10 ・ ・ ・ Cylindrical member 10a ・ ・ End 11 ・ ・ ・ Flow rate adjusting member 11a ・ Step 11b ・ ・ Flange 12 ・ ・ ・ Gap 13 ・..Coil springs 14 ... Holes 15 ... Flow direction regulating member

Claims (1)

[Scope of utility model registration request] 1. A member for adjusting a flow rate, which moves in a direction against urging when a pressure of the contents from the container body is received, is provided in a part of an injection passage that connects the inside of the container body and a discharge port. When providing, at least a part of the gap between the flow rate adjusting member and the injection passage, the cross-sectional area for the passage of the content is the movement amount of the flow rate adjusting member in the direction. In an aerosol container having a flow rate adjusting function in which the flow rate adjusting member is configured to decrease in accordance with the flow rate adjusting member, a portion of the injection passage on the upstream side of the position of the flow rate adjusting member is closer to the flow rate adjusting member. A flow direction restricting member for forcibly changing the flow of the advancing contents is formed so as to suppress the extent that the flow of the contents from the upstream side directly collides with the flow rate adjusting member. Characterized by Le vessel - Eazo having a flow rate adjusting function for.