JP2002308360A - Injection head for aerosol container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an injection head for an aerosol container in which it has a superior design characteristic around an opening segment at a front surface of a cover cap and it is advantageous also in view of a characteristic in operation at an operating segment. SOLUTION: An injection head body 10 is fitted to a stem at its lower end having a nozzle communicated with a forward injection port at its upper end segment and operated to be pushed down. A cover cap 20 is installed at a top end of an aerosol container, released at an upper part of the injection head body 10 to cover its surrounding portion, and formed with an opening segment 22 oppositely faced against the injection port. These two are integrally molded and formed with synthetic resin. A front and lower end of the injection head body 10 is connected to a lower side of the opening segment 22 through a connecting piece 25 showing a flexibility in its upward or downward direction. At least a lower side portion of the opening segment 22 is opened in a shape of curved line as seen in a front elevational view. The connecting piece 25 is formed as a concave curved surface corresponding to the shape of curved line. At the same time, its front end segment is formed with a fine groove 25a extending in a lateral direction against a forward or rearward direction and becoming a fulcrum point for use in oscillating the injection head body 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an aerosol container having a nozzle fitted at a lower end to a stem protruding from the top of the aerosol container, and having a nozzle communicating with an injection port forward at an upper end, and being pushed down. An ejection head main body, and a cover cap formed by opening an upper portion of the ejection head main body attached to the top of the aerosol container to cover the periphery thereof, and having an opening facing the ejection port formed at the front. And a lower end portion of a front end of the opening is connected to a lower portion of the opening through a connecting piece having flexibility in a vertical direction.

[0002]

2. Description of the Related Art In a jet head of this type, various shapes of a connecting piece for swingably connecting an opening surrounding a jet port of a cover cap or a periphery of the opening with the jet head body are known. At this time, the connecting piece which needs to be bent so as to swing the ejection head main body is designed not only in terms of design but also in consideration of the pushing down on the stem or its elastic return characteristics.

[0003]

SUMMARY OF THE INVENTION In view of the foregoing, the present invention has been made in view of the above, and has the following advantages. An object of the present invention is to provide a jet head for an aerosol container.

[0004]

In order to achieve the above object, according to the present invention, according to the first aspect, a lower end portion is fitted to a stem protruding from the top of an aerosol container, and a forward injection port is provided. The nozzle has a nozzle communicating with an upper end portion thereof, and the ejection head body which is operated to be pushed down, and the upper portion of the ejection head body which is mounted on the top of the aerosol container is opened to cover the periphery, and the opening facing the ejection port. And a cover cap formed on the front side, and an integrally formed synthetic resin aerosol in which the lower end of the front end of the ejection head body is connected to the lower portion of the opening via a connecting piece exhibiting up and down flexibility. In the container ejection head, at least a lower portion of the opening facing the ejection opening is opened in a curved shape in a front view, and the connecting piece is formed as a concave curved surface corresponding to the curved shape, and the front end of the connecting piece is formed. Narrow groove extending transversely to the longitudinal direction, characterized in that has been formed.

The connecting piece has a concave curved shape corresponding to the shape of the lower portion of the opening, connects the cover cap and the jet head main body, and swings the jet head main body with the narrow groove as a fulcrum.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A jet head for an aerosol container according to an embodiment of the present invention will be described with reference to FIGS. At the top of the aerosol container 1, a mounting cap 2 having a valve mechanism therein and projecting a stem 3 in an upwardly biased state is attached, and a jet head supported swingably by a cover cap 20. An ejection head including the main body 10 is mounted. The ejection head body 10
A nozzle 12 having a lower end fitted to the stem 3 and an upper end provided with a forward injection port 12a is provided inside a button 11 having an upper surface 11a functioning as an operation unit and a peripheral surface 11b surrounding the outer periphery thereof. A cylindrical portion 13 having a hollow portion 13 a having a circular cross section surrounding the injection port 12 a is formed to protrude from the front surface of the nozzle 12 to the front of the button 11.

[0007] The cover cap 20 is engaged with the winding portion 2a at the lower end of the mounting cap 2 at the lower end portion 29,
An opening 26a that opens the upper part of the ejection head body 10 to cover the periphery thereof, and an opening 22 facing the ejection port 12a is opened at the front;
Surrounds the interior of the
And an inner peripheral surface portion 23 surrounding the peripheral surface portion 11b with a gap 23b therebetween, and the outer peripheral surface portion 21 forms an upper surface portion 26 on the upper side and is integrated with the inner peripheral surface portion 23.

The opening 22 is open in a circular shape when viewed from the front, and the lower and both sides of the opening 23a except for the upper side, which are difficult to see, are formed as a part of the inner peripheral surface 23 so as to gradually reduce the inner diameter. It is formed in a shape. Between the ejection head body 10 and the cover cap 20, an opening peripheral portion 23a
A connecting piece 25 is formed extending from the lower part of the cylindrical part 13 to the inside of the truncated cone so as to be flush with the lower end of the cylindrical part 13. All of the ejection heads described above are the ejection head body 10,
The cover including the cover cap 20 and the connection piece 25 is made of a transparent synthetic resin by integral molding.

The surface of the connecting piece 25 is formed as a concave curved surface along the arc of the opening 22 by extending in the same plane as the peripheral portion 23a of the opening. It is difficult to bend when the main body 10 is pushed down, and the elasticity of the stem 3 causes a resistance when returning upward, so that it is likely to be deformed. Therefore, on the back surface of the front end of the connecting piece 25, a narrow groove 25a is formed in an arc shape excluding the both ends in the horizontal direction intersecting with the injection direction to form a thin portion in the horizontal direction.

[0010] The operation of the aerosol container ejection head thus configured is as follows. Opening 2 in normal state
2, the cavity 13a looks substantially concentric, and the injection port 12a is visible in the center. The connecting piece 25 is located in the periphery 2 of the opening.
As an arc-shaped concave curved surface corresponding to 3a, it extends diagonally upward rearward with a gap 25b therebetween. The narrow groove 25a is seen through a transparent material in an arc shape and functions as an accent design.

In the case of performing the ejection, the ejection head body 10
When the upper surface portion 11a is pushed down, the connection head 25 swings so that the injection port 12a is slightly upward with the thin portion formed by the narrow groove 25a as a fulcrum, and the connection head 25 moves forward through the cavity 13a. Injection is performed. When the push-down operation is released, the bending along the narrow groove 25a quickly returns to the elastic return of the stem 3 and returns.

The shape of the opening on the front face of the cover cap can be another curved shape such as an ellipse. At this time, the inside diameter is gradually reduced at least on the lower side and inside the both sides. Forming the corresponding curved opening periphery,
It is preferable that the connecting piece is formed to extend in the same plane to secure the design property. The narrow groove may be formed in a curved shape or in the entire lateral direction instead of the rectangular cross section. The ejection head may be made of an opaque synthetic resin. In this case, it is preferable that the narrow groove is similarly formed on the back surface of the connecting piece when the mold is removed.

[0013]

According to the first aspect of the present invention, the design of the periphery of the opening at the front of the cover cap including the connecting portion is ensured, and the ejection head main body is formed even if the connecting portion is formed in a concave curved shape. It exhibits a smooth flexure without deteriorating the push-down operation and the backward movement characteristics of the lens, and also avoids a whitening phenomenon caused by an excessive flexure peculiar to the synthetic resin. According to the invention of claim 2, the opening is opened in a circular or elliptical shape in a front view,
An excellent design can be obtained by forming a curved surface corresponding to the opening peripheral portion and the connecting piece.

[Brief description of the drawings]

FIG. 1 is a perspective view of an aerosol container ejection head according to an embodiment of the present invention.

FIG. 2 is a sectional view of the ejection head.

FIG. 3 is a front view of the ejection head.

FIG. 4 is a plan view of the ejection head.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Aerosol container 2 Mounting cap 10 Injection head main body 11 Button 12, 12a Injection port 20 Cover cap 22 Opening 25 Connecting piece 25a Narrow groove

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3E014 PA01 PB01 PD01 PE14 PE15 PF10 3E084 AA02 AB05 DB13 FA09 FC01 GA08 GB12 KB06 LA14 LB02 LD02 4F033 BA01 BA03 CA01 DA01 EA01

Claims (2)

[Claims] 1. A jet head main body which is fitted to a stem projecting from the top of an aerosol container at its lower end at a lower end thereof and communicates with a front jet at its upper end, and is operated to be pushed down, and an aerosol. A cover cap formed by opening the upper part of the ejection head body attached to the container top to cover the periphery thereof, and having an opening facing the ejection port formed on the front side, wherein the lower end of the front end of the ejection head body is opened. In an injection head for an aerosol container made of synthetic resin, which is integrally connected to the lower part of the lower part via a connecting piece exhibiting flexibility, at least the lower part of the opening facing the injection port is viewed from the front. And the connecting piece is formed as a concave curved surface corresponding to the curved shape, and a narrow groove is formed at a front end of the connecting piece so as to extend in the lateral direction with respect to the front-rear direction. Aerosol container for ejecting head. 2. An opening is formed in a circular or elliptical shape when viewed from the front, and a curved surface corresponding to a circle or an ellipse and having a gradually decreasing inner diameter is provided at least on the lower side and inside of both sides of the opening. 2. A jet head for an aerosol container according to claim 1, wherein a peripheral portion of the opening is formed, and the peripheral portion of the opening is extended in the same plane to form a connecting piece.