JP6150610B2 - One-touch cap for aerosol containers - Google Patents

Description

  In the present invention, liquid, powdery contents such as antiperspirant, hair conditioner, and cosmetics and liquefied gas are packed in a sealed container, and the contents are sprayed from the nozzle member injection port by pressing the nozzle member injection button. In the aerosol container which became possible, it is related with the one-touch cap for aerosol containers of the one-touch cap type which covers a nozzle member.

  For various aerosol containers that inject contents, a removable overcap type that removes the cap and presses the injection button as a structure of the cap and button, and a one-touch cap that can easily press the injection button without removing the cap Type is adopted. In the one-touch cap type, there is a type that pushes the upper part of the nozzle member that is also used as a button while a cap that covers the periphery of the nozzle member is attached.

  Usually, in order to improve product quality, it is necessary to ensure comfort in use in addition to the efficacy and properties of the contents and the spraying ability.

  Therefore, when the spray sound of the aerosol container is annoying, there is a high possibility that it will be annoying to the person or other people nearby, so there is a need to consider the injection sound.

  The overcap type is removable, so the injection port is revealed and the injection sound can be easily changed by changing the button shape and composition, while the one-touch cap type has a cap around the nozzle member (button). Since it covered, a sound echoed in the cap part and the injection sound was confined, and it might give a consumer discomfort.

  As a prior art regarding the reduction of the injection sound of an aerosol container, JP 2009-269638 A (Cited document 1) discloses an inner injection opening and an outer injection opening between an outer side surface portion and an inner side surface portion of a cap. There is disclosed a configuration in which a partition wall that communicates with each other is formed, irregularities are formed in the partition wall, and the spray sound can be reduced with an aerosol container of a one-touch cap.

  In this aerosol apparatus, the injection sound is reduced by relaxing the injection driving force with the uneven partition wall of the one-touch cap.

  However, there is a demand for further reducing the injection sound.

  In the aerosol container described in Japanese Patent Laid-Open No. 2001-293402 (Cited document 2), a technique is disclosed that generates an injection sound of 100 dB or more when the background is 40 dB (decibel) at least at the start of injection. Yes. In this aerosol product, a resonance plate for increasing the injection sound is provided for the purpose of increasing the injection sound and making it possible to confirm the injection from a remote position.

  However, in this aerosol container, since the injection sound increases, it is not possible to expect an improvement in usability by reducing the injection sound.

JP 2009-269638 A JP 2001-293402 A

  In view of such a situation, the present invention provides a one-touch cap type aerosol container, which is a one-touch cap type aerosol container that adjusts the jetting sound and does not have a booming sound and realizes a cap shape that does not cause discomfort to consumers. Is.

The present invention provides a one-touch cap for an aerosol container that attaches a nozzle member to a stem that opens and closes an injection valve of a spray can such as an aerosol by a projecting and retracting operation and movably holds the nozzle member in the projecting and retracting operation direction of the stem.
The one-touch cap has a cylindrical outer side surface portion that is attached to a winding tightening portion of the spray can, and an inner surface of the outer side surface portion allows the nozzle member to be protruded and retracted so that an outer peripheral surface shape of the nozzle member is formed. And an inner side surface portion having substantially the same inner peripheral surface shape,
The outer side surface portion and the inner side surface portion are provided with respective openings corresponding to the injection direction of the nozzle member,
The injection port of the nozzle member is aligned with the inner injection opening and the outer injection opening, and the content injected from the nozzle member is injected to the outside from the inner injection opening through the outer injection opening. And
The one-touch cap for an aerosol container, wherein an end portion in the left-right direction of the outer cylinder injection opening is formed on a rear side of an end portion in the left-right direction of the inner injection opening.

  In the present invention, it is preferable that the outer injection opening is formed larger than the injection angle of the nozzle member.

  In the present invention, it is preferable that at least the lateral length of the outer injection opening is formed larger than the vertical length.

  In the one-touch cap for an aerosol container according to the present invention, the content ejected from the nozzle member is ejected from the inner ejection opening to the outside through the outer ejection opening. During injection, the sound of the nozzle member resonates with the space in the outer side surface as a resonance cylinder, but the left and right ends of the outer cylinder injection opening are the left and right ends of the inner injection opening. As a result, the resonance in the space is relaxed, there is no muffled sound, and there is an excellent effect that the consumer is not uncomfortable.

  In the present invention, since the outer injection opening is formed to be larger than the injection angle of the nozzle member, the content to be injected does not hit the periphery of the outer injection port, and the muffled noise can be reliably eliminated.

  Further, in the present invention, at least the lateral length of the outer injection opening is formed to be larger than the vertical length, so that the content to be ejected does not hit the periphery of the outer ejection port, and a muffled sound can be reliably obtained. Can be resolved.

It is explanatory drawing of the one-touch cap for aerosol containers which concerns on embodiment of this invention. It is an external appearance perspective view of the one-touch cap of FIG. It is operation | movement explanatory drawing of the one-touch cap of FIG. It is an external view explanatory drawing of the one-touch cap which concerns on the comparative example 1. FIG. It is external appearance explanatory drawing of the aerosol product which removed the one-touch cap which concerns on the reference example 1. FIG. It is an external view explanatory drawing of the one-touch cap which concerns on the comparative example 2. FIG. It is an external view explanatory drawing of the implementation goods of this invention. It is a diagram of the measurement result of the injection sound of the one touch cap concerning comparative example 1. It is a diagram of the measurement result of the injection sound of the one-touch cap concerning Reference Example 1. It is a diagram of the measurement result of the ejection sound of the one-touch cap concerning the embodiment of the present invention. It is a diagram of the measurement result of the injection sound of the one touch cap concerning comparative example 2. It is a diagram of the measurement result of the injection sound of the implementation goods of the one-touch cap concerning the present invention.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  FIG. 1 is an explanatory view of a one-touch cap for an aerosol container according to an embodiment of the present invention, FIG. 2 is an external perspective view of the one-touch cap, and FIG. 3 is an operation explanatory view of the one-touch cap.

  As shown in FIGS. 1 and 2, the aerosol container according to the embodiment is configured such that an injection valve (not shown) of a spray can 12 (upper part is shown in FIG. 1) containing an injection target and an aerosol agent is projected and retracted. The nozzle member 16 is attached to the stem 14 to be opened and closed, and the one-touch cap 10 is provided at the tip of the spray can 12 so as to guide and hold the nozzle member 16 so as to be movable in the protruding and retracting direction of the stem 14. Is.

  A winding portion 12a is formed at the tip of the spray can 12 (the upper end in FIG. 1). In the spray can 12, the inner periphery of the lower end portion of the cylindrical outer side surface portion 10 o of the one-touch cap 10 is externally fitted to the tightening portion 12 a at the tip of the spray can 12, and the one-touch cap 10 is attached to the spray can 12. Installed and fixed. The spray can 12 has a tubular stem 14 protruding at the top, and when the stem 14 is pushed into the spray can 12, the aerosol fluid contained therein is ejected.

  The one-touch cap 10 has a substantially cylindrical outer side surface portion 10o and an inner side surface portion 10i in a double wall shape inside and outside, and the outer side surface portion 10o and the inner side surface portion 10i are connected to each other at their upper parts. It is resin-molded. Polypropylene can be used as the material resin.

  Inside the outer side surface portion 10o, an inner side surface portion 10i having an inner peripheral surface shape substantially the same as the outer peripheral surface shape of the nozzle member 16 is provided so that the nozzle member 16 can be protruded and retracted.

  The outer side surface portion 10o and the inner side surface portion 10i are formed with an outer injection opening portion 18 and an inner injection opening portion 20 corresponding to the injection direction (indicated by the symbol “s”) of the nozzle member 16, respectively. .

  The injection port 22 of the nozzle member 16 and the contents injected from the nozzle member 16 by aligning the inner injection opening 20 and the outer injection opening 18 so as not to block the injection port 22 in the injection direction. Is configured to be injected from the inner injection opening 20 through the outer injection opening 18 without being blocked outside.

  The nozzle 22 of the nozzle member 16 is formed by drilling in the center of a portion 22a that is recessed in the shape of a spherical side surface on the front surface of the nozzle member 16.

  The inner injection opening 20 is formed in a substantially U-shaped notch shape that opens the one-touch cap 10 downward in a portion corresponding to the injection direction of the injection port 22 in the inner side surface portion 10i.

  The outer injection opening 18 is formed in a rectangular shape when viewed from the front. The left and right end portions 18a and 18a of the outer cylinder injection opening 18 are located behind the left and right end portions 20a and 20a of the inner injection opening 20 as shown in FIGS. Is located.

  Further, as shown in FIG. 3, in the nozzle member 16, when jetting the contents from the injection port 22, the jet injection from the injection port 22 opens at an opening angle (injection). Angle D). Further, with respect to the outer injection opening 18, the inner edge of the outer injection opening 18 with the injection port 22 as the center is positioned at the opening angle E. In the embodiment, the opening angle E of the outer injection opening 18 is formed larger than the opening angle (injection angle D) of jet injection from the injection port 22 (D <E).

  As shown in FIGS. 2 and 3, at least the lateral length W of the outer injection opening 18 is formed larger than the vertical length L (W> L).

  According to the one-touch cap 10 for an aerosol container of the embodiment, the content ejected from the nozzle member 16 is ejected to the outside from the inner ejection opening 20 through the outer ejection opening 18. The jet sound that is jetted may be affected by the space 24 between the outer side surface portion 10o of the one-touch cap 10 and the outer surface or inner side surface portion 10i of the nozzle member 16 to resonate. In the one-touch cap 10, the left and right end portions 18 a and 18 a of the outer cylinder injection opening 18 are formed behind the left and right end portions 20 a and 20 a of the inner injection opening 20. Therefore, the jet that has been jetted is less likely to hit the inner surfaces around the left and right end portions 18a, 18a of the outer cylinder jetting opening 18 in the outer side surface portion 10o.

  Therefore, since the resonance in the space 24 is relaxed, there is no muffled sound, and an excellent effect of not causing discomfort to the user of the aerosol container can be obtained.

  Moreover, the opening angle E from the injection port 22 of the nozzle member 16 in the said outer side injection opening part 18 is formed larger than the injection angle D of the nozzle member 16 (refer FIG. 3). Therefore, since the jet to be injected does not interfere with the outer side surface portion 10a and can be surely prevented from hitting the jet, it is possible to alleviate the generation of a booming noise.

  In addition, as shown in FIG. 2, at least the lateral length W of the outer injection opening 18 is formed to be larger than the vertical length L, so that the lateral injection opening 18 has a lateral direction. The ejected jet is less likely to hit the end portions 18a and 18a than the inner surface of the end portion in the vertical direction. Accordingly, since there is little acoustic reflection from the periphery of the outer injection opening 18 of the outer side surface portion 10o to the inside of the space 24, it is possible to more reliably eliminate the muffled sound.

  Next, description will be given of the results of comparing and considering the noise of the one-touch cap according to the embodiment of the present invention, the reference example 1, and the one-touch cap according to the first and second comparative examples. The same code | symbol is attached | subjected to the part similar to the said embodiment.

  FIG. 4 shows each one-touch cap of Comparative Example 1, FIG. 5 shows Reference Example 1, and FIG. FIG. 7 shows a one-touch cap according to an embodiment of the present invention. FIGS. 8-12 shows the frequency characteristic of the generated sound at the time of jet injection of each comparative example, reference example 1, embodiment, and implementation goods.

  As shown in FIG. 4, in the one-touch cap according to Comparative Example 1, the outer injection opening a of the outer side surface portion 10o is circular, and the end of the opening a is the inner injection opening b of the inner side surface portion 10i. This is a normal type one-touch cap 10 </ b> A that is located in front of the left and right end portions.

  As shown in FIG. 5, Reference Example 1 is a state in which the one-touch cap 10 shown in the embodiment is removed from the spray can 12 to expose the nozzle member 16 and the aerosol product is directly injected from the nozzle member 16. is there.

  As shown in FIG. 6, in the one-touch cap according to Comparative Example 2, the outer injection opening c of the outer side surface portion 10o is rectangular, but the opening c has a left-right direction length W1 higher than a vertical length L1. This is a one-touch cap 10B of a short type (W1 <L1). The inner injection opening b is formed to have the same width as in the first comparative example.

  As shown in FIG. 7, the embodiment of the present invention has a configuration of the one-touch cap of the embodiment shown in FIGS. 1 to 3, and further, the outer injection opening 18 of the one-touch cap 10 is horizontally long in a front view. It is formed in a rectangular shape. That is, at least the lateral length W2 of the outer injection opening 18 is formed to be larger than twice the vertical length L2 (W2> 2 * L2). Others are the same as those of the one-touch cap 10 of the embodiment shown in FIGS.

The injection sound during injection was as follows.
In the one-touch cap of Comparative Example 1, as shown in FIG. 8, the maximum sound volume is −9.76 dB (decibel) as shown in FIG. 8, and the main frequency range of 300 Hz to 4000 Hz in the audible range. Since there is a peak around 1500 Hz (the peak in the audible range is indicated by a broken line by the symbol p in FIG. 8), it is difficult to hear the sound of 2000 Hz to 3000 Hz that is most sensitive to human ears at the surrounding frequencies, and the bass It becomes annoying because the loud sound stands out greatly.

Moreover, in the reference example 1, as shown in FIG. 5, there is no one-touch cap and it injects from the nozzle member 16. FIG.
In this reference example 1, the maximum sound volume of the injection sound at the time of injection from the nozzle member 16 is -12.91 dB as shown in FIG. In addition, the peak becomes small in the audible range of 500 Hz to 4000 Hz, and gradually decreases toward the high range (the peak in the audible range is indicated by a broken line by the symbol p in FIG. 9) and peaks at a frequency higher than 4000 Hz. Was coming and I wasn't bothered by the feeling of the sound of the jet.

On the other hand, the embodiment shown in FIGS. 1 to 3 is a horizontally long type in which at least the lateral length W of the outer spray opening 18 of the one-touch cap 10 is larger than the longitudinal length L. .
In this embodiment, the injection sound at the time of injection from the nozzle member 16 is as shown in FIG. 10 (the peak in the audible range is indicated by a broken line by the symbol p in the figure), and the maximum volume is -16.20 dB. In the audible frequency range of 500 Hz to 4000 Hz, the peak is in the vicinity of 2000 Hz, but the peak is more relaxed than in Comparative Examples 1 and 2, and it is understood that the muffled sound is alleviated and is not a concern.

In Comparative Example 2, as shown in FIG. 6, the one-touch cap 10B is a vertically long type in which the opening c is shorter in the left-right direction length W1 than the up-down direction length L1.
In this comparative example 2, as shown in FIG. 11 (the peak in the audible range is indicated by a broken line by the symbol p in FIG. 11), the maximum sound volume is −12.07 dB. In the audible range of frequency 500 Hz to 4000 Hz, the peak is in the vicinity of 2000 Hz, and there is a certain amount of booming noise.

Further, the embodiment shown in FIG. 7 is a horizontally long type in which the lateral length W of the outer injection opening 18 of the one-touch cap 10 is formed to be twice the vertical length L.
In this embodiment, as shown in FIG. 12 (the peak in the audible range is indicated by a broken line by the symbol p in the figure), the maximum sound volume of the injection sound injected from the nozzle member 16 is -15.88 dB. In the audible frequency range of 500 Hz to 4000 Hz, the peak is in the vicinity of 2000 Hz, but the peak is more relaxed than in Comparative Examples 1 and 2, and it is understood that the muffled sound is alleviated and is not a concern.

  From the result of comparing the jet injection sound between the above Comparative Examples 1 and 2 and the embodiment and the product according to the present invention, in the one-touch cap for an aerosol container, the emperor noise is reduced by implementing the present invention, and the feeling of use is improved. To be understood.

  The one-touch cap for aerosol containers of the present invention can be used by being attached to various aerosol containers.

DESCRIPTION OF SYMBOLS 10 One-touch cap 10a Outer side surface part 10b Inner side surface part 12 Spray can 16 Nozzle member 18 Outer injection opening part 18a Left-right direction edge part 20 of outer injection part Inner injection opening part 20a Left-right direction edge of inner injection part Part 22 Outlet 24 Space

Claims (3)

In a one-touch cap for an aerosol container that attaches a nozzle member to a stem that opens and closes an injection valve of a spray can such as an aerosol by a projecting and retracting operation, and holds the nozzle member movably in the projecting and retracting operation direction of the stem.
The one-touch cap has a cylindrical outer side surface portion that is attached to a winding tightening portion of the spray can, and an inner surface of the outer side surface portion allows the nozzle member to be protruded and retracted so that an outer peripheral surface shape of the nozzle member is formed. And an inner side surface portion having substantially the same inner peripheral surface shape,
The outer side surface portion and the inner side surface portion have a double wall shape inside and outside, the outer side surface portion and the inner side surface portion are connected at their upper parts, and are integrally molded with resin,
The outer side surface portion and the inner side surface portion are each provided with an opening corresponding to the injection direction of the nozzle member,
The injection port of the nozzle member is aligned with the inner injection opening and the outer injection opening, and the content injected from the nozzle member is injected to the outside from the inner injection opening through the outer injection opening. And
The space between the outer side surface portion and the inner side surface portion is a space where the injection sound can resonate with the injection port of the nozzle member,
Lateral direction end portion of the outer side injection opening is, for an aerosol container, characterized by being formed located behind with respect to the injection direction than the left-right direction end portions of said inner injection opening One-touch cap.   The one-touch cap for an aerosol container according to claim 1, wherein the outer injection opening is formed larger than the injection angle of the nozzle member.   The one-touch cap for an aerosol container according to claim 1 or 2, wherein at least a lateral length of the outer injection opening is formed larger than a longitudinal length.

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