JP7624192B2 - Rotation prevention structure for exterior fixing part relative to mounting cup on aerosol container body, and contents ejection operation unit and aerosol product related to this rotation prevention structure - Google Patents

Description

The present invention relates to a rotation prevention structure for an exterior fixing part that is attached to a mounting cup on the container body side.

Examples of the exterior fixing parts that can be attached to the mounting cup include the following:
(11) A cylindrical rotation base (see Figs. 1 to 7) that guides the rotatable one-touch cap when the one-touch cap is rotated in a circumferential direction (the direction in which the content ejection operation mode or the content ejection operation non-operation mode is set).
(12) An operating part protective attachment having a side protective wall for the content ejection operating part (see FIG. 8),
(13) An integral attachment of an operation part molded integrally with the content ejection operation part (see FIG. 9),
etc.

The various exterior fixing parts of the present invention are strongly elastically engaged with the circumferential unevenness that is formed on the outer circumferential surface of the central cylindrical part of the mounting cup when the housing is attached.

The various exterior fixing parts are set in a manner that prevents rotation relative to the mounting cup through strong elastic engagement with the mounting cup, which is fixed and integrated into the container body.

The rotation base (11) acts as a rotation guide for a circumferentially rotating member such as an injection operating part that can rotate relatively in the circumferential direction of the mounting cup.

That is, the mounting cup, which is attached by crimping or the like to the housing of the stem that discharges the contents, is fixed and integrated with the rotation base that guides the circumferentially rotating member. The circumferentially rotating members, such as the injection operating part and the exterior cover body, are guided in the circumferential direction by this integrated rotation base.

This integration prevents the circumferentially rotating member and its rotation base from rotating together.

By preventing co-rotation, the amount of relative rotation of the circumferentially rotating member with respect to the rotation base during the above-mentioned relative rotation operation is the same as the amount of circumferential movement of the circumferentially rotating member with respect to the mounting cup.

In this specification, for the sake of convenience, an injection operating part in the form of a one-touch cap that allows the injection button to be easily pressed without removing the cap is used as an example of a circumferentially rotating member. This one-touch cap is merely one example of various members that can move relative to the rotating base in the circumferential direction.

The crimping process on the mounting cup and the housing attached to it creates unevenness in the circumferential direction of the outer periphery of the central cylindrical part of the mounting cup, and the strong engagement of the rotation base with this unevenness prevents it from rotating relative to the mounting cup.

The applicant has already proposed a button spray device for aerosol products etc., which allows the user to select between a locked mode, in which the spray operation of the contents is prevented, and an unlocked/stationary mode, in which this is permitted, by rotating a circumferentially rotating member (spray button [A]) (see Patent Document 1).

In the lock mode, the lower end [6a] of the reinforcing bridge [6] of the spray button [A] abuts against the stopper surface [14] of the cap part [C], which is fixed so as not to rotate to the valve component end [5] of the aerosol product container [B], preventing the spray button [A] from being pressed down. This cap part [C] corresponds to the exterior fixing part of the present invention.

In the unlocked/stationary mode, the reinforcing bridge [6] faces the notched groove [12] of the cap part [C], making it possible to press the ejection button [A].

The rotation of the injection button [A] is restricted by the thick portion [14a] of the injection button [A] set in the notch [13] abutting against the circumferential edge [13a], preventing it from rotating beyond an unnecessary range.

The cap part [C] is fixed in place by fitting its lower part [8] onto the outer circumference of the valve component end [5] of the aerosol product container [B] to completely surround it, and by providing several small protrusions [9] to allow for a resilient fit.

Japanese Utility Model Application Publication No. 55-177859

In this proposed button spray device for aerosol products, etc., the cap part [C] is fitted so that its lower part [8] surrounds the entire outer circumference of the valve component end [5], and this frictional connection prevents it from rotating relative to the aerosol product container [B].

The small protrusions [9] on the lower portion [8] are arranged in a manner that does not impede the fitting that surrounds the entire outer circumference, and are designed to be easily deformed, elongated vertically, and low in height so that they can engage with the narrowed portion of the valve component end [5] and prevent the cap part [C] from coming loose.

Therefore, the biggest problem was that the rotation prevention function between the cap part [C] and the mounting cup was not sufficiently guaranteed. As mentioned above, this cap part [C] corresponds to the exterior fixing part of the present invention.

In addition, loosening caused by dimensional variations or deformation caused by repeated force applied over a long period of time from the thick portion [14a] to the circumferential edge [13a] due to restrictions on the range of rotation operation could cause the cap part [C] to rotate relative to the aerosol product container [B], causing it to rotate together with the spray button [A] during rotation, making it impossible to select between the locked mode and the unlocked/stopped mode.

In addition, the small protrusion [9] was easily deformed and had a low height, so it could not fully engage with the circumferential irregularities of the valve component end [5], and was not designed to completely prevent the cap part [C] and the injection button [A] from rotating together.

As such, there was room for improvement in the stability of the anti-rotation structure between the mounting cup and the exterior fixing part in the event of dimensional variations in product specifications and manufacturing processes, as well as long-term use.

The present invention is directed to a rotation prevention structure for various exterior fixing parts, which is based on the previously proposed button spraying device for aerosol products, etc., and in particular utilizes the circumferential unevenness changes generated on the central outer peripheral surface of the cup as a result of the processing of holding the housing to the mounting cup.

The present invention employs a rotation prevention structure for the mounting cup of the various exterior fixing parts,
(21) Enrich the technology for preventing rotation of the exterior fixing part against the mounting cup,
(22) To stabilize the initial circumferential position setting of various exterior fixing parts attached to the mounting cup,
(23) To stabilize the prevention of co-rotation of the circumferentially rotating member and its rotation base (exterior fixing part) relative to the mounting cup,
The purpose of this is to:

The present invention solves the above problems as follows.
(1) A rotation prevention structure comprising a mounting cup (e.g., the mounting cup 2 described later) on the aerosol container body side and an exterior fixing part (e.g., the rotation base 5, the operation unit protective mounting body 7, and the operation unit integral mounting body 9 described later) attached to the mounting cup in a rotation-preventing state,
The mounting cup comprises:
The central cylindrical portion has an outer peripheral surface (e.g., an outer peripheral surface of the central cylindrical portion 2b described later) that has a circumferential unevenness (e.g., a caulked concave portion 2c described later),
The unevenness change is
The mounting cup is set by a deformation process for attaching a housing (e.g., the housing 3 described below) to the mounting cup,
The exterior fixing part is
The mounting cup is provided with uneven portions (e.g., hemispherical portions 5k, 5q, 7e, 9e described later) that correspond to the uneven changes, and these uneven portions are elastically biased against the uneven changes, and the uneven portions strongly engage with the uneven changes to prevent rotation in the circumferential direction relative to the mounting cup.
A configuration of the above is used.
(2) In (1) above,
The uneven portion is
A hemispherical shape protruding inward from the inner circumferential surface of the exterior fixing portion.
A configuration of the above is used.
(3) In the above (1) and (2),
The uneven portion is
A tip portion (e.g., a hemispherical portion 5q, 7e, 9e described later) of a cantilever (e.g., a leg portion 5p, 7d, 9d described later) protruding inward from the inner circumferential surface of the exterior fixing portion.
A configuration of the above is used.
(4) In the above (1), (2), and (3),
The exterior fixing part is
The outer casing has a guiding action in the circumferential direction with respect to a circumferential direction rotating member (e.g., a one-touch cap 6 described later) that is rotatable in the circumferential direction with respect to the outer casing fixing portion .
A configuration of the above is used.

In addition to the rotation prevention structure having such a configuration, the present invention also covers a content injection operation unit that has an exterior fixing part that targets this rotation prevention structure and a circumferentially rotating member that can rotate in the circumferential direction relative to this (such as an injection operation part or an exterior cover body, for example the one-touch cap 6 described below), and an aerosol-type product that has this rotation prevention structure.

By adopting the above-mentioned configuration, the present invention
(31) Enrich the technology related to the rotation prevention structure of the exterior fixing part relative to the mounting cup on the container body,
(32) To stabilize the initial circumferential position setting of various exterior fixing parts attached to the mounting cup,
(33) To stabilize the prevention of co-rotation of the circumferentially rotating member and its rotation base (exterior fixing part) relative to the mounting cup,
You can do things like that.

1 is an explanatory diagram showing a top-bottom cross section of a rotation prevention structure consisting of a rotation base (exterior fixing part) and a mounting cup of an attachment body in a lock mode in which the content ejection operation is prevented. FIG. 4 is a diagram illustrating an oblique view from above of a rotation base, which is a component of the rotation prevention structure of FIG. 1 and selectively sets a lock mode in which the contents cannot be ejected and an unlock mode in which the contents can be ejected by a relative rotation operation in the circumferential direction with the one-touch cap of FIG. 3 is an explanatory diagram showing a perspective view of the rotation base from below, instead of from above in FIG. 2; FIG. FIG. 2 is an explanatory diagram showing a one-touch cap, which is a component of the mounting body in FIG. 1, and selectively sets a lock mode in which the contents cannot be ejected and an unlock mode in which the contents can be ejected by rotating the cap relative to the rotating base in the circumferential direction. FIG. 13 is an explanatory diagram showing a plan view of a rotation prevention structure (part 1: an individual type that uses a hemispherical body individually set on the inner piece in the circumferential direction of the rotating base that can be elastically displaced radially of the rotating base as an engagement partner with the central outer peripheral surface of the mounting cup) when a one-touch cap is not attached to the rotating base. 1 is an explanatory diagram showing a top-down cross section of a rotation prevention structure consisting of a rotation base (exterior fixing part) and a mounting cup of an attachment body in an unlocked mode in which the contents can be ejected. FIG. FIG. 2 is an explanatory diagram showing a plan view of a rotation prevention structure (part 2: a connecting type that uses hemispherical bodies set on the open tip side of a V-shaped cantilever consisting of a pair of elastically displaceable leg portions as an engagement partner with the central outer peripheral surface of the mounting cup) when the one-touch cap is not attached to the rotating base. 1 is an explanatory diagram showing a vertical cross section of a rotation prevention structure consisting of an operating part protective attachment (exterior fixing part) having a lateral protective wall for an operating button that engages with a stem, and a mounting cup. 1 is an explanatory diagram showing a vertical cross section of a rotation prevention structure consisting of an operating unit integral attachment body (exterior fixing part) having an operating unit that engages with a stem and a mounting cup. FIG.

An embodiment of the present invention will be described using Figures 1 to 9.

In addition, the components with the following alphabetical reference symbols (e.g., annular shoulder portion 1a) are, in principle, part of the component with the numerical portion of the reference symbol (e.g., container body 1).

Figures 1 to 7 show a rotation prevention structure consisting of a rotation base (exterior fixing part) and a mounting cup that constitute an attachment (contents ejection operation unit) that enables or prevents contents ejection operation by rotating the one-touch cap.

Here, in FIG. 1 to FIG. 7,
Reference numeral 1 denotes an aerosol-type container body that contains a propellant (compressed gas or liquefied gas) and the contents to be released, which will be described later.
1a is an upper annular portion of the container body 1, and is an annular shoulder portion formed in an inward upward inclination from the lower side.
A mounting cup 2 is attached to the upper end of the annular shoulder 1a by a known clinching process.
Reference numeral 2a denotes an annular recess formed on the outer end side of the upper surface of the mounting cup 2 and configured to individually hold the circumferential outer guide portions 5d (four in total) of the pivot base 5 described below.
2b is a central cylindrical portion that is the subject of "crimping" processing between the housing 3 described later,
2c is a total of eight "crimped" recesses formed at intervals in the circumferential direction of the outer circumferential surface of the central cylindrical portion 2b by "crimping" the central cylindrical portion 2b.
2d is an annular top surface on a base that is continuously formed inward from the upper end of the central cylindrical portion 2b and that holds the upper surface side of a stem gasket 4d described later;
are shown respectively.

Also,
A cylindrical housing 3 is attached to the inside of the central cylindrical portion 2b by crimping and accommodates the lower portion of the stem 4 described below.
3a is an upward annular step formed on the inner surface of the upper end of the housing, and holds a stem gasket 4d (described later) between the annular top surface 2d of the mounting cup 2 and the annular step 3b.
3b is a tube for inflow of contents attached to the lower end side of the housing,
Reference numeral 4 denotes a sheath-shaped stem which exhibits a well-known valve action in response to a push-down and rotation operation (content ejection operation) of a spout operating portion 6a described later, and through which the contents of the container body 1 pass and are ejected into the external space when the valve is in an open state.
4a is a stem passage for passing contents,
A horizontal hole 4b communicates with the stem passage 4a and constitutes an opening and closing valve for the housing contents (contents of the container body) between the stem passage 4a and a stem gasket 4d described later.
A coil spring 4c is disposed in the internal space of the housing 3 and biases the entire stem upward in the drawing to set the horizontal hole 4b in a closed state.
A stem gasket 4d is sandwiched between the annular top surface 2d of the mounting cup 2 and the upper end side inner step portion 3a of the housing 3, and opens and closes the horizontal hole portion 4b in a deformed manner in response to the illustrated up and down movement of the stem 4.
are shown respectively.

Also,
5 is a substantially cylindrical pivot base (exterior fixing part) that is fixed to the mounting cup 2 by engaging with the crimped recess 2c and that rotates in the circumferential direction relative to a one-touch cap 6 (described later) in this fixed state.
5a is an annular wall portion in the vertical middle region constituting the pivot base,
A shutter 5b is formed on the inside of the upper end of the annular wall portion 5a and faces an opening 6d for ejecting the contents in the lock mode, which will be described later.
A stopper 5c is formed on the upper end of the annular wall portion 5a at a portion facing the shutter 5b, and prevents the one-touch cap 6 (described later) from being rotated (pushed down) for spraying the contents by contacting a locked drooping rib portion 6g (described later) in the lock mode.
5d are four circumferential outer guide portions formed in a groove shape on the outer side of the lower end of the annular wall portion 5a, and serve to guide the relative rotation between a lower cylindrical portion 6e of the one-touch cap 6 and a rotation base portion 5f, which will be described later.
5e are four circumferentially outwardly protruding portions formed at intervals in the circumferential direction in the vertically intermediate portion of the annular wall portion 5a and serve to regulate the vertical positions of circumferentially inwardly protruding portions 6f described below;
A pair of rotation restriction portions 5f are formed on the upper end portion of the annular wall portion 5a in an opposing upright manner as shown in the figure, and they set the relative rotation range between the rotation base and a one-touch cap 6 described later.
5g, 5g' are a total of four rotation restricting end faces formed by the circumferential end faces of the rotation restricting portion 5f,
A pair of inner circumferential pieces 5h are formed on the inner circumferential surface of the annular wall portion 5a in a circumferential direction, spaced apart by 180 degrees as shown in the figure, and elastically displaceable to ensure that the engagement between the crimped recess 2c of the mounting cup 2 and the rotation base itself is secure and free of rattle.
5j is a thin-walled bottom groove portion formed on the upper surface of the inner piece 5h and opening upward in the circumferential direction to be the center of elastic deformation of the inner piece;
5k denotes two pairs of four hemispherical portions formed on the inner peripheral surface of each of the inner pieces 5h and engaging with the crimped recesses 2c;
5m is a flat portion formed on the inner tip side of the semispherical portion 5k for easily setting the rotating base 5 in the mounting cup 2 by following the upper end of the outer circumferential surface of the central cylindrical portion 2b.
5n (5n to 5q: used only in FIG. 7) are a pair of V-shaped cantilevers formed in place of the inner piece 5h, with inner openings facing each other and spaced apart by 180 degrees in the radial direction from the inner circumferential surface of the annular wall portion 5a, and which elastically deform to ensure that the engagement between the crimped recess 2c of the mounting cup 2 and the rotation base itself is secure and free of rattle.
5p is a pair of legs constituting a V-shaped cantilever 5n,
5q is a pair (four in total) of semi-spherical parts formed on the tip side of the leg part 5p and adapted to engage with the crimped recessed part 2c of the mounting cup 2;
are shown respectively.

Also,
A one-touch cap (a circumferentially rotating member) 6 has a function of ejecting contents, and can be rotated relative to the rotation base 5 in a circumferential direction between a locked mode for preventing contents ejection and an unlocked mode for enabling contents ejection.
6a is a spout operating part that is connected to the top surface of the one-touch cap at the front in a cantilevered manner and is the object of a push-down and rotation operation with this connection part as the rotation center when spraying the contents.
6b is a spout passage for passing contents, which communicates with the stem passage 4a;
6c is an opening for spraying the contents formed on the outlet side of the spout passage 6b in a manner facing the shutter 5b in the unlocked mode;
6d is a rotation range restricting rib-like portion formed on the opposing portion of the inner circumferential surface of the one-touch cap and abuts against the rotation restricting end surface 5g to terminate the relative rotation operation of the one-touch cap 6 and the rotation base 5;
The lower cylindrical portion 6e of the one-touch cap 6 is guided by the circumferential outer guide portion 5d of the rotation base 5 during this relative rotation operation.
6f is a circumferentially inwardly protruding portion that is formed in a circumferentially annular shape on the inner surface of the lower end side of the lower cylindrical portion 6e and prevents the one-touch cap 6 from coming out upward from its circumferentially outer guide portion 5d by a vertical holding action with the circumferentially outwardly protruding portion 5e;
A locked drooping rib 6g is formed in the ceiling surface of the rear side of the spout operating portion 6a in a vertical manner and prevents the one-touch cap 6 from being rotated (pushed down) to spray the contents by contacting the upper end of the stopper 5c in the locked mode.
are shown respectively.

Also,
A denotes a container body side unit consisting of an integrated unit (container body 1, mounting cup 2, housing 3, rotating base 5, etc.) in which a substantially cylindrical rotating base 5 is fixedly attached to a mounting cup 2 of a container body 1;
B (see FIG. 6) is the relative rotation direction of the container body side unit A when the lock mode of FIG. 1 is released and the lock release/stationary mode of FIG. 6 is entered.
are shown respectively.

Here, the container body 1, mounting cup 2, housing 3, stem 4, pivot base 5 and one-touch cap 6 are made of, for example, metal or plastic, or may also be made of wood, paper or a composite material of these.

The stem gasket 4d is made of, for example, rubber or elastomer.

The basic features of the rotation prevention structure of the rotation base 5 (exterior fixing part) relative to the mounting cup 2 shown in the figure are as follows:
(41) A substantially cylindrical rotating base 5 is fixedly attached to the mounting cup 2 of the container body 1, and the entirety of these related components (the container body 1, the mounting cup 2, the housing 3, the rotating base 5, etc.) is set as a container body side unit A consisting of an integrated body,
(42) The one-touch cap 6 is guided in a relatively circumferential rotational direction by the circumferential outer guide portion 5d of the rotation base 5 of the container body side unit A,
(43) The attachment of the pivot base 5 to the mounting cup 2 in the above (41) is based on the circumferential engagement between the crimped concave portion 2c generated by the crimping process on the mounting cup and the hemispherical portions 5k, 5q of the pivot base 5.
Things like that.

The relative rotational guidance of the pivot base 5 and the one-touch cap 6 in (42) above is based on the guiding action between the one-touch cap 6 and the circumferential outer guide portion 5d.

In the drawings of this application (such as the locked mode in FIG. 1 and the unlocked mode in FIG. 6), for the sake of convenience, the container body unit A and the one-touch cap 6, which normally rotate relative to each other in the circumferential direction, are shown as rotating only about 1/4 of the circumferential length (rotating about 90 degrees).

In other words, the one-touch cap 6 is disposed at the same circumferential position in plan view in the lock mode of FIG. 1 and the unlock mode of FIG. 6.

In actual use, only the one-touch cap 6 can be rotated, or both the container body unit A and the one-touch cap 6 can be rotated in the circumferential direction.

This circumferential rotation operation is completed and confirmed when the rotation-restricting end faces 5g, 5g' of the rotation base 5 come into circumferential contact with the rotation-range-restricting rib portion 6d of the one-touch cap 6.

In the locked mode shown in FIG. 1, the shutter 5b closes the opening 6c to protect the outlet side of the spout passage 6b, and the stopper 5c is set below the locked hanging rib portion 6g to prevent the spout operating portion 6a from being pushed down.

When the container body unit A in FIG. 1 is rotated approximately 90 degrees clockwise (direction B) in a plan view relative to the one-touch cap 6, it shifts to the unlocked/stop mode in FIG. 6.

During this rotation operation, the engagement between the hemispherical portion 5k and the crimped recessed portion 2c prevents the mounting cup 2 from rotating relative to the rotating base 5, and the container body 1, mounting cup 2, and rotating base 5 of the container body side unit A act as a single unit.

Therefore, the amount of relative rotation of the one-touch cap 6 with respect to the rotation base 5 required for mode transition is the same as the amount of circumferential movement of the one-touch cap 6 with respect to the container body unit A due to the rotation operation.

In this way, there is no problem with the rotation base 5 and the one-touch cap 6 rotating together (rotating together) due to frictional resistance between them during the rotation operation, making it difficult to switch between unlocked and stopped modes.

In the unlocked/stationary mode of FIG. 6, the stopper 5c is set at a position shifted circumferentially from the lower position of the locked hanging rib portion 6g, so the spout operating portion 6a can be depressed. By pressing down the spout operating portion 6a, the stem 4 moves downward and the side hole portion 4b of the valve action portion opens. The contents of the container body 1 are then released from the opening 6c into the external space via the path "inside of the tube 3b - inside of the housing 3 - side hole portion 4b - stem passage portion 4a - spout passage portion 6b".

If you stop setting the operating mode here, that is, stop pressing down on the one-touch cap 6, the stem 4 will return to its initial position due to the elastic action of the well-known coil spring (not shown) as described above, and the spout operating part 6a will also transition to its initial state.

To transition the illustrated rotation prevention structure from the unlocked/stationary mode of FIG. 6 to the locked mode of FIG. 1, the user simply rotates the container body unit A relative to the one-touch cap 6 in the opposite direction to direction B.

Figure 5 shows a plan view of the rotation prevention structure of the container body unit A.

When attaching this rotating base 5 to the mounting cup 2, the thin-walled bottom groove 5j of the inner piece 5h shrinks so that the maximum diameter part of the central cylindrical part 2b passes between the opposing inner pieces 5h, and then the thin-walled bottom groove 5j returns to its original position so that the hemispherical part 5k can abut and engage with the crimped recessed part 2c. If the circumferential positions of the hemispherical part 5k and the crimped recessed part 2c do not match, the rotating base 5 is rotated slightly relative to the mounting cup 2.

The restoring force of the thin-bottom groove portion 5j causes the hemispherical portion 5k to tightly engage with the crimped recessed portion 2c, preventing the mounting cup 2 and the pivot base 5 from rotating relative to each other.

In addition, even if there is variation in the diameter of the central cylindrical portion 2b or the depth of the crimped recessed portion 2c, the thin-bottom groove portion 5j can shrink to absorb the difference.

Figure 7 shows a plan view of the rotation prevention structure of the container body side unit A, which uses a rotation base 5 having a V-shaped cantilever 5n instead of the inner piece 5h.

When attaching this rotating base 5 to the mounting cup 2, each leg portion 5p of the V-shaped cantilever 5n opens elastically, and the maximum diameter portion of the central cylindrical portion 2b passes between the opposing V-shaped cantilevers 5n, after which each leg portion 5p returns to its original position so that the hemispherical portion 5q can abut and engage with the crimped recessed portion 2c. If the circumferential positions of the hemispherical portion 5q and the crimped recessed portion 2c do not match, the rotating base 5 is rotated slightly relative to the mounting cup 2.

When the mounting cup 2 and the rotating base 5 attempt to rotate relative to each other with the hemispherical portion 5q engaged with the crimped recessed portion 2c, one leg portion 5p of the V-shaped cantilever 5n is compressed between the annular wall portion 5a and the crimped recessed portion 2c, acting as a sort of "stop bar" to prevent rotation. When the mounting cup 2 and the rotating base 5 attempt to rotate relative to each other in the opposite direction, the other leg portion 5p acts as a "stop bar" to prevent rotation.

In addition, even if there is variation in the diameter of the central cylindrical portion 2b or the depth of the crimped recessed portion 2c, the difference can be absorbed by opening the leg portion 5p of the V-shaped cantilever 5n.

For ease of explanation, Figures 5 and 7 show the rotating base 5 engaged alone with the container body unit A, but the rotating base may be manufactured and managed in the form of a spray unit combined with a one-touch cap 6, and the spray unit may be attached to the mounting cup 2 of a filled aerosol container.

Figure 8 shows a rotation prevention structure in which a pair of side protective walls are provided on the exterior fixing part to surround the operation button.

Here, in FIG.
7 is an operating part protective attachment (exterior fixing part) equipped with a side protective wall of the operating part,
7a is an annular wall portion in the vertical middle region constituting the lower end of the operation part protection mounting body 7;
7b are circumferential outer guide portions formed on the outer sides of the annular wall portions 7a, and engage with the mounting cup 2 to mainly determine the vertical position.
7c is a pair of V-shaped cantilevers formed on the inner peripheral surface of the annular wall portion 7a at inner openings spaced apart from each other by 180 degrees in the radial direction as shown in the figure, and elastically deformable to set the engagement state between the crimped recessed portion 2c of the mounting cup 2 and the rotation base itself to a secure one without any "wobble",
7d is a pair of leg portions constituting the V-shaped cantilever 7c,
7e is a pair (four in total) of semi-spherical parts formed on the tip side of the leg part 7d and adapted to engage with the crimped recessed part 2c of the mounting cup 2;
7f is a pair of side protection walls provided on the sides of the operation button 8 to be described later in an upright manner and protecting the operation button 8;
7g is a front gap between the side protective walls 7f, through which the contents discharged from the nozzle 8a pass;
7h is a rear gap between the side protective walls 7f, which serves as a guide for the user's fingers during the injection operation.
A button 8 is fixed to the upper end of the stem 4 for operating the content ejection.
8a is a nozzle through which the contents from the stem passage portion 4a are discharged into the external space area;
are shown respectively.
Other reference numerals are the same as those in FIGS. 1 to 7 and are used appropriately.

Here, the operating unit protective attachment 7 and the operating buttons 8 are made of, for example, metal or plastic, as is the rotating base 5, or wood, paper, or a composite of these materials.

The side protective wall 7f prevents the operation button 8 from accidentally going into the ejection state and releasing the contents when the container with the operation part protective attachment 7 attached is dropped or when an object falls or hits the container, and prevents the stem 4 and the valve mechanism below it from being damaged by a strong external force applied to the operation button 8.

In addition, by matching the printing pattern on the outer peripheral surface of the container body 1 with the patterns of the side protective walls 7f, the front gap 7g, and the rear gap 7h, it is possible to improve the design of the entire container and provide convenience such as making it easier for users to determine the spray direction by visually checking the printing on the container.

The operating part protection attachment 7 and the mounting cup 2, which are integrated with the container body 1 by clinching, are prevented from rotating by the engagement between the hemispherical portion 7e and the crimped recessed portion 2c, ensuring this level of convenience.

In addition, a guide may be provided between the ejection button 8 and the exterior fixing part 7 so that they do not rotate around the axial direction of the stem 4 and can only move relative to each other in the vertical direction.

A valve mechanism may also be used that allows the user to select whether or not to spray by rotating the operation button 8. In this case, the exterior fixing part 7 is engaged with the mounting cup 2 so that spraying is possible when the operation button 8 is rotated so that the nozzle 8a is aligned with the front gap 7g.

Figure 9 shows a rotation prevention structure in which an operation button is integrally attached to the exterior fixing part via a hinge part.

Here, in FIG.
9 is an operation unit integral attachment body (exterior fixing part) in which an operation unit 9f described later is integrally formed,
9a is an annular wall portion in the vertical middle region constituting the lower end of the operation unit integral mounting body 9;
9b are four circumferential outer guide portions formed on the outer side of the annular wall portion 9a, which engage with the mounting cup 2 to mainly determine the vertical position.
9c is a pair of V-shaped cantilevers formed on the inner peripheral surface of the annular wall portion 9a at inner openings spaced apart from each other by 180 degrees in the radial direction as shown in the figure, and elastically deformable to ensure that the engagement between the crimped recessed portion 2c of the mounting cup 2 and the pivot base itself is secure and free of rattle.
9d is a pair of leg portions constituting the V-shaped cantilever 9c,
A pair of semi-spherical parts 9e (four in total) are formed on the tip end of the leg part 9d and engage with the crimped recessed part 2c of the mounting cup 2.
9f is an operating part for content ejection operation, which is fitted and fixed to the upper end of the stem 4;
9g is a nozzle through which the contents from the stem passage portion 4a are discharged into the external space area;
9h is the hinge part,
are shown respectively.
Other reference numerals are the same as those in FIGS. 1 to 7 and are used appropriately.

Here, the operating unit integral attachment body 9 is made of, for example, metal or plastic, like the rotating base 5, or wood, paper, or a composite material of these.

The lower end of the tube 3b is located in front of the container body 1, so when used with the nozzle 9g tilted downward, the contents can be released to the last drop.

The operating unit integral attachment body 9 is engaged with the mounting cup 2 so that the orientation of the lower end of the tube 3b matches the orientation of the nozzle 9g of the operating unit 9f.

In addition, by matching the printing pattern on the outer peripheral surface of the container body 1 with the orientation of the spray nozzle 9g, it is possible to improve the overall design of the container and provide convenience by making it easier for users to determine the spray direction by visually checking the printing on the container.

The operating unit integral attachment body 9 and the mounting cup 2, which are integrated with the container body 1 by clinching, are prevented from rotating by the engagement between the hemispherical portion 9e and the crimped recessed portion 2c, ensuring this level of convenience.

If the bottom end of the tube 3b is set to the rear of the container body 1, the contents can be released to the last drop when the nozzle 9g is tilted upward.

Of course, the rotation prevention structure of the present invention is not limited to the illustrated embodiment, for example,
(51) Two pairs of inner pieces 5h (four locations in total) are provided.
(52) Instead of the V-shaped cantilevers 5n, 7c, and 9c, leg portions 5p, 7d, and 9d are provided separately for the annular wall portions 5a, 7a, and 9a.
(53) Two pairs of V-shaped cantilevers 5n, 7c, and 9c (four locations in total) are provided.
(54) The hemispherical portions 5k of the inner piece portion 5h are provided at every other crimped recess 2c.
(55) An inner piece 5h is provided in place of the V-shaped cantilevers 7c, 9c of the operation unit protection mounting body 7 and the operation unit integrated mounting body 9.
(56) The hemispherical portions 5q, 7e, and 9e are provided on the non-tip portions of the leg portions 5p, 7d, and 9d.
This may be done.

The aerosol products to which this invention can be applied include detergents, cleaning agents, antiperspirants, cooling agents, muscle anti-inflammatories, hair styling agents, hair treatment agents, hair dyes, hair restorers, cosmetics, shaving foams, foods, liquid droplets (vitamins, etc.), medicines, quasi-drugs, paints, gardening agents, repellents (insecticides), cleaners, deodorants, laundry starch, urethane foam, fire extinguishers, adhesives, lubricants, and other products with a variety of uses.

The contents to be stored in the container body may be in various forms, such as liquid, cream, or gel. The ingredients that are mixed into the contents include, for example, powders, oils, alcohols, surfactants, polymeric compounds, active ingredients for each application, water, etc.

Powdered materials include metal salt powders, inorganic powders, and resin powders. For example, talc, kaolin, aluminum hydroxychloride (aluminum salt), calcium alginate, gold powder, silver powder, mica, carbonates, barium sulfate, cellulose, and mixtures of these.

Oil components include silicone oil, palm oil, eucalyptus oil, camellia oil, olive oil, jojoba oil, paraffin oil, myristic acid, palmitic acid, stearic acid, linoleic acid, linolenic acid, etc.

As alcohols, monohydric lower alcohols such as ethanol, monohydric higher alcohols such as lauryl alcohol, and polyhydric alcohols such as ethylene glycol, glycerin, and 1,3-butylene glycol are used.

Examples of surfactants that can be used include anionic surfactants such as sodium lauryl sulfate, nonionic surfactants such as polyoxyethylene oleyl ether, amphoteric surfactants such as lauryl dimethylaminoacetate betaine, and cationic surfactants such as alkyltrimethylammonium chloride.

Polymer compounds that can be used include methylcellulose, gelatin, starch, casein, hydroxyethylcellulose, xanthan gum, and carboxyvinyl polymer.

Active ingredients for each purpose include anti-inflammatory and analgesic agents such as methyl salicylate and indomethacin, disinfectants such as sodium benzoate and cresol, insect repellents such as pyrethroids and diethyltoluamide, antiperspirants such as zinc paraphenolsulfonate, cooling agents such as camphor and menthol, antiasthmatic drugs such as ephedrine and adrenaline, sweeteners such as sucralose and aspartame, adhesives and paints such as epoxy resins and urethanes, dyes such as paraphenylenediamine and aminophenols, oxidizers such as hydrogen peroxide, and fire extinguishers such as ammonium dihydrogen phosphate and sodium/potassium bicarbonate.

In addition to the above ingredients, suspending agents, UV absorbers, emulsifiers, moisturizers, antioxidants, sequestering agents, etc. can also be used.

The gas used to spray the contents in aerosol products can be compressed gases such as carbon dioxide, nitrogen gas, compressed air, oxygen gas, rare gases, or mixtures of these gases, or liquefied gases such as liquefied petroleum gas, dimethyl ether, or fluorocarbon.

(Figs. 1 to 9)
1: Container body 1a: Annular shoulder portion 2: Mounting cup 2a: Annular concave portion 2b: Central cylindrical portion 2c: Crimped concave portion 2d: Annular top surface 3: Housing 3a: Upward annular step portion 3b: Tube 4: Stem 4a: Stem passage portion 4b: Horizontal hole portion 4c: Coil spring 4d: Stem gasket

(Figs. 1 to 7)
5: Rotating base (exterior fixing part)
5a: Annular wall portion 5b: Shutter 5c: Stopper 5d: Total of four circumferential outer guide portions 5e: Total of four circumferential outward convex portions 5f: Total of two rotation restricting portions 5g, 5g': Total of four rotation restricting end faces 5h: Pair of circumferential inner pieces 5j: Thin-walled bottom groove portion 5k: Pair of hemispherical portions 5m: Planar portion 5n: Pair of V-shaped cantilevers 5p: Pair of leg portions 5q: Total of four hemispherical portions 6: One-touch cap 6a: Spout operating portion 6b: Spout passage portion 6c: Opening for spraying contents 6d: Rib-shaped portion for restricting rotation range 6e: Lower cylindrical portion 6f: Circumferential inward convex portion 6g: Locked drooping rib-shaped portion A: Unit B on the container body side: Rotation operation direction from lock mode (FIG. 1) to unlock mode (FIG. 6) for unit A

(Figure 8)
7: Operation unit protective attachment (exterior fixing part)
7a: Annular wall portion 7b: Total of four circumferential outer guide portions 7c: Pair of V-shaped cantilevers 7d: Pair of leg portions 7e: Total of four hemispherical portions 7f: Pair of side protection walls 7g: Front gap 7h: Rear gap 8: Operation button 8a: Jet nozzle

(Figure 9)
9: Operation unit integral attachment body (exterior fixing part)
9a: Annular wall portion 9b: Total of four circumferential outer guide portions 9c: Pair of V-shaped cantilevers 9d: Pair of leg portions 9e: Total of four hemispherical portions 9f: Operation portion 9g: Jet port 9h: Hinge portion

Claims (6)

A rotation prevention structure comprising a mounting cup on an aerosol container body and an exterior fixing part attached to the mounting cup in a rotation-preventing state,
The mounting cup comprises:
The central cylindrical portion has an outer peripheral surface with unevenness in the circumferential direction.
The unevenness change is
a deformation process for attaching the housing to the mounting cup;
The exterior fixing part is
a concave-convex portion corresponding to the concave-convex change is provided, and the concave-convex portion is elastically biased against the concave-convex change, and the convex-convex portion is strongly engaged with the concave-convex change to prevent rotation in the circumferential direction relative to the mounting cup;
A rotation prevention structure characterized by the above. The uneven portion is
A hemispherical shape protruding inward from the inner circumferential surface of the exterior fixing portion.
2. The rotation prevention structure according to claim 1. The uneven portion is
A tip portion of a cantilever protruding inward from an inner circumferential surface of the exterior fixing portion,
3. The rotation prevention structure according to claim 1 or 2. The exterior fixing part is
The outer casing fastener has a guiding action in the circumferential direction for a circumferentially rotating member that is rotatable in the circumferential direction relative to the outer casing fastener .
4. The rotation prevention structure according to claim 1, wherein the rotation prevention structure is a rotation prevention structure. A contents ejection operation unit comprising the exterior fixing part and the circumferentially rotating member, the exterior fixing part being adapted to the rotation prevention structure according to claim 4 . A container comprising the rotation prevention structure according to any one of claims 1 to 4, and containing a gas for injection and a content on the container body side.
An aerosol product characterized by:

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