JP3539430B2 - Aerosol container - Google Patents

Description

[0001]
[Industrial applications]
INDUSTRIAL APPLICABILITY The present invention has various conveniences in use in an aerosol-type container, more specifically, an aerosol-type container in which the top end of a nozzle head is pressed with a fingertip for convenience of use and a liquid content is ejected from the side of the nozzle head. That is, the nozzle head is provided with a predetermined rotation range between the locked position and the unlocked position, so that the care that allows avoiding erroneous ejection when not in use, without the risk of the erroneous nozzle head falling off, In addition, the rotation operation of the nozzle head can be reliably performed by grasping the side surface of the head without touching the beak-shaped injection hole, and furthermore, by the engaging portion where the stem protruding from the container engages with the nozzle head. A play gap for buffering and absorbing the influence of unexpected pressing impact, design error, temperature deformation, etc. secured at the stepped enlarged diameter portion for locking of the injection hole base is not invalidated, and is not used. The present invention relates to an aerosol-type container capable of reliably preventing unexpected leakage of contents.
[0002]
[Prior art]
So-called hair styling foams, shaving foams and the like are usually stored in aerosol type containers. This aerosol-type container is composed of a container body, a synthetic resin nozzle head attached to a stem mounted on the container body, and a synthetic resin assembly for attaching the nozzle head to the container body. Generally, the nozzle head described above is rotatably assembled to the assembled body as described in, for example, Japanese Utility Model Publication No. 3-44297, and at a predetermined rotation position, for example, from the nozzle head side. A hanging head and a nozzle head pressing mechanism such as a through hole that allows the hanging leg to descend is provided on a partition floor for preventing the hanging leg from descending, and the hanging leg at a position other than the through hole is provided. A rotation mechanism that hits the partition floor is a lock mechanism that disables pressing of the nozzle head.
[0003]
And, for the content liquid of the filling in the bent spout in the middle of the beak-shaped nozzle head, a tight seal must be provided at the base of the spout to back up, and if this is inadequate Since the nozzle head and the stem may run down onto the container body, a tight fitting portion of a predetermined length is always secured so that there is no leakage between the nozzle head and the stem.
[0004]
In the fitting portion described above, the base of the spouting path is enlarged in a stepped manner, and the stem is engaged therewith so that the top end of the stem is locked and pressed by the lowering of the nozzle head.
[0005]
In addition, at the above-mentioned latching part, a predetermined play allowance should be secured to prevent the leakage of the contents held by the locking mechanism so that the pressing force does not accidentally act on the stem even when locking due to dimensional error of the material, bending etc. It has been taken for granted.
[0006]
[Problems to be solved by the invention]
However, in the above-mentioned aerosol type container, various inconveniences in use remain unresolved. That is, in the structure in which the nozzle head is provided with a predetermined rotation range between the lock position and the unlock position to avoid erroneous injection when not in use, only consideration is given to the nozzle head depressing ability. , The nozzle head may escape upward (possibly caused by the locking of the ejection hole protruding to the side), or the nozzle head is assembled and stored in the body in a buried manner, and the finger cannot grasp the side surface of the head. The clue to the pivotal operation of the pivot becomes a projecting beak-shaped spouting path, the fingertip becomes unpleasant to contaminate the liquid remaining at the tip of the beak, and the function of preventing the contents from leaking in the lock mechanism is uncertain. .
[0007]
It is understood that the last cause of the failure to prevent the leakage is due to the time-dependent solidification and adhesion of the content liquid remaining in the close fitting portion between the nozzle head and the stem.
[0008]
In other words, the buffering capacity in this part is based on the premise that sliding occurs between the nozzle head and the stem. And the above-mentioned play allowance for eliminating malfunction is invalidated.
[0009]
The present invention has been made in view of the circumstances described above, and its purpose is to provide a nozzle head with a predetermined rotation range between a lock position and a lock release position, thereby preventing erroneous ejection when not in use. In the structure that can be avoided, there is no risk of the nozzle head falling off, and the rotation operation of the nozzle head can be reliably performed by holding the side of the head without touching the beak-shaped injection hole. Absorbing the impact of unexpected pressing impact, design error, temperature deformation, etc. secured at the fitting portion between the stepped enlarged diameter portion of the injection hole base and the stem mounted on the container It is an object of the present invention to provide an aerosol-type container of a type in which a content liquid is jetted from a side of a nozzle head in which a play gap is not invalidated.
[0010]
[Means for Solving the Problems]
In order to achieve the above object, the aerosol-type container according to the present invention comprises a container body 1 which is an aerosol-type container having a stem 4 protruding upward at an upper end portion, and a base cylinder of an attached beak-shaped spout 6. A nozzle head 3 having a piece 5 fitted to the stem 4 and an assembled body 2 made of synthetic resin attached to an upper end of the container body 1 into which the nozzle head 3 is vertically and rotatably incorporated. In an aerosol type container which is configured and capable of ejecting liquid by pushing down the nozzle head 3 only at an appropriate position, the nozzle head 3 is incorporated so that a side peripheral wall thereof is exposed from an upper end of the assembly 2. A nozzle head 3 retaining mechanism is arranged between the nozzle head 3 and the nozzle head 3. In the nozzle head 3, a plurality of leg pieces 12 are suspended from the peripheral end thereof, and Tapered lower end In the assembled body 2, a flat plate 14 having an opening 15 is provided at a position facing the leg piece 12 of the assembled body 2. A portion 10 is provided, and the nozzle head 3 rides on the engaging portion 10 in association with the rotation of the nozzle head 3 with respect to the assembled body 2 in the locking direction. A notch 21 is formed in a part of the flat plate 14 at a part where the cylindrical piece 5 is inserted into the upper peripheral edge of the central opening of the flat plate 14 at a position where the leg piece 12 and the opening 15 coincide with each other. A short cylinder-shaped regulating cylinder 20 is erected, and the lower end thereof is fitted into the central opening of the flat plate 14 so as to face the notch 21 of the tube piece 5 which is fitted into the regulating cylinder 20. The circumferential edge of the regulating cylinder 20 formed by providing the notch 21 The projecting piece 19 protrudes in the radial direction at an opposite projecting height, and the rotational displacement limit of the nozzle head 3 with respect to the assembled body 2 is set by the contact of the projecting piece 19 with the end edge of the regulating cylinder 20. A vertically thin flat plate-shaped thin piece 22 extending in the radial direction is provided on the outer peripheral surface portion of the regulating cylinder 20 on the substantially opposite side to the inner surface of the leg piece 12 opposed to this thin piece 22. A vertical flat plate-like elastic contact piece 23 having an extending end portion facing the extending end portion of the thin piece 22 from the circumferential direction is erected, and the thin thin piece 22 and the elastic contact piece 23 are connected to the nozzle head 3. In the middle of the rotational displacement between the lock position and the unlock position, the extended ends of the nozzle heads 3 abut against each other, and the nozzle head 3 continues to be elastically deformed by the continuous rotation of the nozzle head 3 to get over. The light impact of the elastic return operation with good momentum generates a light impact sound and a sense of impact A fitting structure for securing a predetermined play allowance having a stepped diameter increase for locking in the spouting path 6 between the tubular piece 5 and the stem 4 is provided from the stepped enlarged diameter portion to a predetermined length. The fitting portion 24 is formed, and then the diameter is gradually increased to form a loose fitting portion, and then the guide loose fitting portion 25 at the end is formed.
[0011]
[Action]
The nozzle head 3 is prevented from falling off by the nozzle head 3 retaining mechanism secured at the fitting insertion portion between the assembled body 2 and the nozzle head 3. As a result of the nozzle head 3 being positioned higher than the upper end of the assembly 2, the nozzle head 3 can be held by a gripping operation on the side surface of the nozzle head.
The fitting portion between the nozzle head and the stem having a predetermined length is divided into a close fitting portion and a loose fitting portion, so that the close fitting portion is greatly reduced in width. Therefore, the degree of adhesion due to the residual liquid is reduced, and the phenomenon that the nozzle head and the stem cannot slide with each other over time is eliminated. However, the essential tight seal is maintained.
[0012]
The lower end opening of the base of the spouting path serves as an assembly guide portion for loose fitting, and since the above loose fitting portion is provided subsequently thereto, there is no trouble in assembling. It provides a smooth guiding ability that cannot be obtained by simply opening it in the spread.
[0013]
【Example】
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
The nozzle head 3 has a cylindrical member 5 having a thin cylindrical shape hanging down from the center of the lower surface of the top wall of the synthetic resin-made cylindrical body, and the nozzle head 3 is provided at regular intervals on the lower end edge of the cylindrical wall 18 of the top-shaped cylindrical body. The two leg pieces 12 are vertically provided with a part of the cylindrical wall 18 extending downward, and a tapered surface 13 is formed at the lower end of the leg piece 12 to constitute the riding section 11.
[0014]
The inside of the tube piece 5 is a vertical path portion of the pouring path 6 having an outlet opened at the upper end portion of the outer peripheral surface of the tube wall 18. The step surface is used as the pressing surface 7, and the diameter of the enlarged portion is made substantially equal to the outer diameter of the stem 4 protruding from the upper end of the container body 1. The step-shaped enlarged portion has a two-stage enlarged configuration of a guide loose fitting portion 25 which reaches a further enlarged opening through the tight fitting portion 24 for the stem 4 having a predetermined length.
[0015]
The assembled body 2 is formed into a cylindrical shape made of a synthetic resin which is fixed to the upper end of the container main body 1 by being fitted into the upper end portion thereof. A flat plate 14 constituting the joint 10 is provided. The flat plate 14 has a stem 4 projecting from below in the center, an opening through which the tubular piece 5 of the assembled nozzle head 3 can be fitted from above, and a nozzle at the peripheral end. Opposite to the leg pieces 12 of the head 3, four openings 15 forming the engaging portion 10 are formed at equal intervals along the circumferential direction.
[0016]
That is, in the unlocked state of the nozzle head 3, the lower end of the leg 12 of the climbing portion 11 is located at the opening 15 of the engaging portion 10, and the nozzle head 3 can descend. Abuts against the contact surface 8, which is the upper end surface of the stem 4, and when a pressing force acts on the nozzle head 3 in this state, the pressing surface 7 is pressed against the contact surface 8 and remains in a close contact state. The stem 4 is pushed down, and the contents are poured out.
[0017]
When the nozzle head 3 is rotated in the set direction from the unlocked state, the leg piece 12 of the riding portion 11 is engaged by the riding operation of the tapered surface 13 of the riding portion 11 with respect to the opening edge of the opening 15 of the engaging portion 10. It rides on the flat plate 14 of the joint 10. The nozzle head 3 is displaced upward with respect to the assembled body 2 by the climbing of the climbing portion 11 with respect to the engaging portion 10, and the nozzle head 3 is positioned between the pressing surface 7 of the tubular piece 5 and the contact surface 8 of the stem 4. A gap 9 (play allowance) having a value larger than a bending allowance generated in the head 3 and the assembled body 2 is formed. This aspect is shown in FIG. The nozzle head 3 does not have the ability to ascend by itself, and is only pushed up by the upward bias of the stem 4 when the pressure is released. The gap 9 shown in FIG. A mode of securing is realized.
[0018]
A pair of locking pieces 16 (see FIG. 1 and FIG. 4) project from the outer peripheral surface of the cylindrical wall 18 of the nozzle head 3 so as to be located substantially symmetrically. At the upper end of the inner peripheral surface of the peripheral wall of the assembled body 2, a ridge-shaped retaining portion 17 that locks the locking piece 16 from above is formed.
[0019]
By the locking of the locking piece 16 to the retaining portion 17, the nozzle head 3 is rotatably but non-removably mounted on the assembled body 2.
[0020]
At the peripheral edge of the upper surface of the central opening of the flat plate 14, a short cylindrical regulating cylinder 20 (see FIG. 2) having a cutout 21 is provided upright. By fitting the lower end, the portion facing the notch 21 of the tube piece 5 which is in a state of being fitted into the regulating tube 20 is provided at the edge of the regulating tube 20 formed by providing the notch 21. A protruding piece 19 is protruded in the radial direction at a protruding height opposed from the circumferential direction. When the protruding piece 19 abuts against the end edge of the regulating cylinder 20, the rotational displacement of the nozzle head 3 with respect to the assembled body 2 is limited. Is limited.
[0021]
That is, at the rotation position where the leg piece 12 of the riding section 11 is fitted into the opening 15 of the engaging section 10, the protruding piece 19 comes into contact with one end face of the regulating cylinder 20, and the unlocking position of the nozzle head 3 is changed. On the contrary, at the rotation position where the leg piece 12 of the climbing section 11 rides on the flat plate 14 of the engaging section 10, the projecting piece 19 abuts on the other end face of the regulating cylinder 20, and the nozzle head 3 Lock position is set.
[0022]
On the outer peripheral surface portion of the regulating cylinder 20 which is substantially opposite to the notch 21, a thin vertical plate-shaped thin piece 22 (see FIGS. 1 and 2) extending in the radial direction is provided upright. On the inner surface of the leg piece 12 facing the thin piece 22, a vertically flat elastic contact piece 23 (FIGS. 1 and 2) having an extended end portion facing the extended end portion of the thin piece 22 from the circumferential direction. See).
[0023]
The thin piece 22 and the elastic contact piece 23 abut against each other at their extended ends while the nozzle head 3 is rotationally displaced between the locked position and the unlocked position. The user can hear the impact sound and hear the impact because the slight impact of the elastic return operation with strong momentum at the time of the overturn generates a slight impact sound and a sense of impact. By feeling the feeling, the locked state of the nozzle head 3 can be known by the sound and the tactile sensation, so that a preferable feeling of use can be obtained.
[0024]
Note that the engaging portion 10 and the riding portion 11 are not limited to the configuration shown in the illustrated embodiment. For example, the projecting locking piece 16 is used as the riding portion 11 and the retaining portion 17 is It is also possible to use the engaging portion 10 as a groove structure with which the stop piece 16 engages.
[0025]
【The invention's effect】
The present invention has the above-described configuration, and has the following effects.
That is, there is no unexpected drop of the nozzle head which has not been solved in the conventional product, and it is possible to lock the nozzle head and to grasp the most suitable nozzle head side surface at the time of rotating operation of unlocking. The sliding failure that occurred at the fitting part of the was eliminated and the unexpected leakage was eliminated. In addition to this, it also has a function of notifying the lock and unlocking position suitable for use with an impact sound, and provides an aerosol type easy with excellent convenience.
[Brief description of the drawings]
FIG. 1 shows an embodiment of the present invention and is a longitudinal sectional view of a main part.
FIG. 2 is a plan sectional view taken along the line AA in FIG.
FIG. 3 is an overall side view of a nozzle head according to another embodiment shown in FIG. 1;
FIG. 4 is an overall plan view of the nozzle head in the embodiment shown in FIG.
FIG. 5 is an overall front view of the assembled body in the embodiment shown in FIG.
6 is an overall plan view of the assembled body in the embodiment shown in FIG.
[Explanation of symbols]
Reference Signs List 1; container body 2; assembled body 3; nozzle head 4; stem 5; cylindrical piece 6; outflow path 7; pressing surface 8; abutting surface 9; gap 10; engaging portion 11; Flat plate 15; opening 16; locking piece 17; retaining portion 18; cylindrical wall 19; protruding piece 20; regulating cylinder 21; notch 22; thin piece 23; elastic contact piece 24; Close fitting portion 25; Guide loose fitting portion

Claims (1)

A container body (1), which is an aerosol-type container having a stem (4) protruding upward at an upper end portion, and a base cylinder piece (5) of an attached beak-shaped spout (6) are attached to the stem (4). ), And an assembled body (2) made of synthetic resin attached to the upper end of the container body (1) into which the nozzle head (3) is vertically movable and rotatably incorporated. In the aerosol type container which can eject the liquid by pushing down the nozzle head (3) only at an appropriate position, the side peripheral wall of the nozzle head (3) is exposed from the upper end of the assembled body (2). A nozzle head (3) retaining mechanism is disposed between the assembled body (2) and the nozzle head (3), and the nozzle head (3) has a peripheral end portion. And a plurality of leg pieces (12) are suspended from the A raised portion (11) is formed by forming a tapered surface (13) at a lower end portion of the assembling body (2). In the assembled body (2), a portion facing the leg piece (12) of the assembled body (2) A flat plate (14) having an opening (15) formed therein is provided with an engaging portion (10), and the nozzle head (3) is engaged with the assembled body (2) with the rotation in the locking direction. When the nozzle head rides on the part (10), the downward movement of the nozzle head is disabled, and the downward movement of the head at the position where the leg (12) and the opening (15) coincide with the rotation in the unlocking direction. A short cylinder-shaped regulating cylinder (20) having a notch (21) formed in a part of the flat plate (14) at the periphery of the upper surface of the central opening of the flat plate (14) to insert the cylinder piece (5) is provided. Then, by fitting the lower end into the central opening of the flat plate (14), the cylindrical piece (5) fitted into the regulating cylinder (20) is formed. The projection piece (19) is formed at a position facing the notch (21) at a protruding height opposite to the edge of the regulating cylinder (20) formed by providing the notch (21) in the circumferential direction. In the direction in which the nozzle piece (19) comes into contact with the end of the regulating cylinder (20) to set the rotational displacement limit of the nozzle head (3) with respect to the assembled body (2). A thin vertical plate-like thin piece (22) extending in the radial direction is erected on the outer peripheral surface portion of the regulating cylinder (20) on the substantially opposite side, and the leg facing the thin thin piece (22). On the inner surface of the piece (12), a vertical plate-shaped elastic contact piece (23) having an extending end portion facing the extending end portion of the thin piece (22) from the circumferential direction is erected, and this thin piece ( 22) and the elastic contact piece (23) mutually extend while the nozzle head (3) is rotationally displaced between the locked position and the unlocked position. The end is abutted, and the nozzle head (3) is continuously rotated and continuously deformed by elastic deformation. In this case, the diameter of the pipe (5) and the stem (4) is increased in a stepped manner for engagement so as to secure a predetermined play allowance. An aerosol-type container characterized in that a close fitting portion (24) of a predetermined length from the portion is formed, and then the diameter is gradually increased to form a loose fitting portion, followed by a loose fitting portion (25) for guiding at the end.

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