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

Abstract

To promote enrichment of a technique for a rotation preventing structure of an exterior fixing part with respect to a mounting cup, stabilization of an initial position setting in a circumferential direction of the exterior fixing part, and stabilization of prevention occurrence of co-rotation between the exterior fixing part and a circumferential rotation member in the circumferential direction that rotated relative to the exterior fixing part.SOLUTION: A rotation prevention structure is formed of a mounting cup 2 on an aerosol container body side, and a rotation base part 5 as an exterior fixing part mounted to the mounting cup in a rotation prevented state. The mounting cup 2 comprises a circumferential uneven changing part due to a concave part 2c to be caulked based on caulking processing for mounting a housing 3 on an outer peripheral surface of a central cylindrical part 2b. Each of the rotation base parts 5 includes a plurality of hemispherical parts 5k in an uneven state protruding inward from an inner peripheral surface. An uneven part formed by the hemispherical part 5k is elastically urged against the uneven changing part of the concave part 2c to be caulked, and due to a strong engaging action of the uneven part and the uneven changing part, the rotation base part 5 is prevented from rotating in a circumferential direction with respect to the mounting cup 2.SELECTED DRAWING: Figure 6

Description

[Technical field]

[0001] The present invention relates to a rotation prevention structure for an exterior fixing part that is attached to a mounting cup on a container body side.

[0002] Examples of the exterior fixing parts that can be attached to the mounting cup include the following: (11) A cylindrical rotation base that guides the one-touch cap when the rotatable one-touch cap is rotated in a circumferential direction (the direction set for the content ejection operation mode or the content ejection operation disabled mode) (see Figs. 1 to 7), (12) A protective attachment for the operation part having a side protective wall for the injection operation part of the contents (see Figure 8), (13) An integral attachment of an operation unit molded integrally with the content ejection operation unit (see Figure 9), etc.

[0003] Such various exterior fastening parts of the present invention are originally tightly elastically engaged with the circumferentially uneven portion formed on the outer circumferential surface of the central cylindrical part of the mounting cup when the housing is attached.

[0004] The various exterior fixing parts are set in a manner to prevent rotation relative to the mounting cup by strong elastic engagement with the mounting cup which is fixedly integrated with the container body.

[0005] The rotation base (11) functions as a rotation guide for a circumferentially rotating member such as an injection operating part that is rotatable relative to the mounting cup in the circumferential direction.

[0006] That is, the mounting cup is attached to the housing of the stem that discharges the contents by crimping or the like, and the rotation base that guides the circumferentially rotating members is fixed and integrated. 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.

[0007] This integration prevents the circumferentially rotating member and its rotation base from rotating together.

[0008] By preventing the mutual rotation, the amount of relative rotation of the circumferentially rotating member with respect to the rotation base in the above-mentioned relative rotation operation coincides with the amount of circumferential movement of the circumferentially rotating member with respect to the mounting cup.

[0009] In this specification, for the sake of convenience, a one-touch cap type spray operating part that allows the spray 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.

[0010] The crimping process on the mounting cup and the housing attached to it creates an uneven surface along 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 uneven surface prevents it from rotating relative to the mounting cup. [Background technology]

[0011] The present applicant has already proposed a button spray device for aerosol products, etc., in which a locked mode, in which the spray operation of the contents is prevented, and an unlocked / stationary mode, in which this is permitted, can be selected by rotating a circumferentially rotating member (spray button [A]) (see Patent Document 1).

[0012] 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] that is fixed to the valve component end [5] of the aerosol product container [B] so as not to rotate, preventing the spray button [A] from being pressed down. This cap part [C] corresponds to the exterior fixing part of the present invention.

[0013] In the unlocked / stationary mode, the reinforcing bridge [6] faces the notched groove

[12] of the cap part [C], making it possible to press down the injection button [A].

[0014] The rotation of the injection button [A] is regulated by the thick portion [14a] of the injection button [A] set in the cutout portion

[13] abutting against the circumferential edge [13a], preventing it from rotating beyond an unnecessary range.

[0015] The cap part [C] has its lower part [8] fitted around the outer circumference of the valve component end [5] of the aerosol product container [B] to completely surround it, and is fixed in place by providing several small protrusions [9] to allow for a resiliently fitted fit. [Prior art documents] [Patent documents]

[0016] [Patent Document 1] Japanese Utility Model Application Publication No. 55-177859 Summary of the Invention [Problem to be solved by the invention]

[0017] 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].

[0018] The small protrusion [9] on the lower portion [8] is arranged in a manner that does not hinder the engagement that surrounds the entire outer periphery, and is designed to be easily deformed, vertically slender, and low in height so that it can engage with the narrowed portion of the valve component end [5] and prevent the cap part [C] from coming loose.

[0019] Therefore, above all, there was a problem in that the rotation prevention function between the cap part [C] and the mounting cup was not sufficiently ensured. As described above, this cap part [C] corresponds to the exterior fixing part of the present invention.

[0020] In addition, due to 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, the cap part [C] may become rotatable relative to the aerosol product container [B] and rotate together with the spray button [A] during rotation, making it impossible to select the locked mode or the unlocked / stopped mode.

[0021] In addition, the small protrusion [9] was easily deformed and had a low height, so it could not sufficiently engage with the circumferential unevenness of the valve component end [5], and was not in a state where it could completely prevent the cap part [C] and the injection button [A] from rotating together.

[0022] Thus, there is room for improvement in the stability of the rotation prevention structure between the mounting cup and the exterior fixing part with respect to dimensional variations in product specifications and manufacturing processes, and long-term use.

[0023] The present invention is based on the button spray device of the proposed aerosol product, etc. especially The subject of the present invention is a rotation prevention structure for various exterior fixing parts that utilizes the circumferential unevenness changes that are generated on the central outer peripheral surface of the cup as a result of the processing for holding the housing on the mounting cup.

[0024] 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: [Means for solving the problem]

[0025] The present invention solves the above problems as follows. (1) A rotation prevention structure comprising a mounting cup (e.g., mounting cup 2 described later) on the aerosol container body side and an exterior fixing part (e.g., rotation base 5, operation unit protective mounting body 7, and 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 (for example, 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 unevenness changes, and the uneven portions are elastically biased against the unevenness changes, and the strong engagement between the uneven portions and the unevenness changes prevents the mounting cup from rotating in the circumferential direction. 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 (1) and (2) above, The uneven portion is The tip portion (e.g., the hemispherical portion 5q, 7e, 9e described later) of the cantilever (e.g., the 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 (1), (2), and (3) above, The exterior fixing part is A circumferentially rotating member (for example, a one-touch cap 6 described later) that can rotate in the circumferential direction relative to the exterior fixing portion The guide action in the circumferential direction is A configuration of the above is used.

[0026] In addition to a rotation-prevention structure having such a configuration, the present invention also covers a content injection operation unit that has an exterior fixed part that is targeted for this rotation-prevention structure and a circumferentially rotating member (such as an injection operation part or exterior cover body, for example the one-touch cap 6 described below) that can rotate circumferentially relative to this, and an aerosol-type product that has this rotation-prevention structure. Effect of the Invention

[0027] 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. [Brief description of the drawings]

[0028] [Figure 1] 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. [Diagram 2] 1. This is an explanatory diagram showing an oblique view from above of a rotation base, which is a component of the rotation prevention structure of Figure 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 Figure 4. [Diagram 3] 3 is an explanatory diagram showing a perspective view of the rotation base from below, instead of from above in FIG. 2; FIG. [Figure 4] FIG. 2 is an explanatory diagram showing a one-touch cap, which is a component of the attachment 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 a rotating base in the circumferential direction. [Diagram 5]FIG. 1 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. [Figure 6] 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 an unlocked mode in which the contents ejection operation is possible. FIG. [Figure 7] FIG. 13 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. [Figure 8] 1 is an explanatory diagram showing a vertical cross section of a rotation prevention structure consisting of an operation part protection attachment (exterior fixing part) having a side protection wall for an operation button that engages with a stem, and a mounting cup. [Figure 9] 1 is an explanatory diagram showing a vertical cross section of a rotation prevention structure consisting of an operation unit integral attachment body (exterior fixing part) having an operation unit that engages with a stem, and a mounting cup. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0029] An embodiment of the present invention will be described with reference to FIGS.

[0030] In addition, components with alphabetical reference symbols below (eg, annular shoulder portion 1a) are, in principle, part of the component (eg, container body 1) indicated by the numerical portion of the reference symbol.

[0031] 1 to 7 show a rotation prevention structure consisting of a rotation base (exterior fixing part) and a mounting cup that constitute an attachment body (contents ejection operation unit) that enables or prevents content ejection operation by rotating a one-touch cap.

[0032] Here, in FIG. 1 to FIG. 7, 1 is an aerosol-type container body that contains the propellant (compressed gas or liquefied gas) and the contents to be released, 1a is an upper annular portion of the container body 1, and is an annular shoulder portion formed in an inwardly upwardly inclined manner from the bottom. 2 is a mounting cup attached to the upper end of the annular shoulder 1a by a known clinching process. 2a is a ring-shaped recess that is formed on the outer end side of the upper surface of the mounting cup 2 and individually holds the circumferential outer guide portions 5d (four in total) of the rotating base 5 described later. 2b is the central cylindrical part that is the subject of the "crimping" process between the housing 3 described later, 2c is a total of eight "crimped" recesses formed at intervals on 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 the stem gasket 4d described later. are shown respectively.

[0033] Also, A cylindrical housing 3 is attached to the inside of the central cylindrical portion 2b by crimping and accommodates the lower part 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 that performs a known valve action when the spout operating portion 6a, which will be described later, is pushed down and rotated (content ejection operation), and through which the contents of the container body 1 pass and are ejected into the external space when the valve is open. 4a is a stem passage for contents to pass through, 4b is a horizontal hole portion which communicates with the stem passage portion 4a and constitutes an opening and closing valve for the housing contents (contents of the container body) between the 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.

[0034] Also, 5 is a substantially cylindrical pivot base (exterior fixing part) that is fixed to the mounting cup 2 by engagement 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 a vertically intermediate annular wall portion constituting the pivot base, 5b is a shutter formed on the inside of the upper end of the annular wall portion 5a to face and shield an opening 6d for ejecting 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) to inject the contents by contacting a drooping rib portion 6g (described later) when in the lock mode. 5d are formed in a groove shape on the outer side of the lower end of the annular wall portion 5a, and are four circumferential outer guide portions for guiding the relative rotation between the lower cylindrical portion 6e of the one-touch cap 6 and the 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 to regulate the vertical position of the circumferentially inwardly protruding portions 6f described later. 5f is a pair of opposing upright portions formed at the upper end of the annular wall portion 5a, and defines a relative rotation range between the rotation base and a one-touch cap 6, which will be described later. 5g, 5g′ are a total of four rotation restricting end faces consisting of the circumferential end faces of the rotation restricting portion 5f, 5h denotes a pair of circumferentially inner pieces formed on the inner circumferential surface of the annular wall portion 5a in an opposing state spaced apart by 180 degrees as shown in the figure, which are elastically deformed 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. 5j is a thin-walled bottom groove-like portion formed on the upper surface of the inner piece 5h and opening in the circumferential direction, which is the center of elastic deformation of the inner piece. 5k denotes two pairs (four) of hemispherical parts formed on the inner peripheral surface of each of the inner pieces 5h and engaging with the crimped recesses 2c. 5m is a flat surface formed on the inner tip side of the hemispherical portion 5k for easily setting the rotating base 5 along the upper end of the outer circumferential surface of the central cylindrical portion 2b when attaching the rotating base 5 to the mounting cup 2; 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 180 degrees apart from each other in the radial direction from the inner circumferential surface of the annular wall portion 5a, which elastically displace and 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 rattle. 5p is a pair of legs that constitute the 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 engaged with the crimped recessed part 2c of the mounting cup 2. are shown respectively.

[0035] Also, 6 is a one-touch cap (a circumferentially rotating member) that has a content ejection function and can take relative circumferential rotation positions between a lock mode that prevents content ejection operation and an unlock mode that allows content ejection operation, relative to the rotation base 5; 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 portion 6b in a manner facing the shutter 5b in the unlock 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; 6e is a lower cylindrical portion of the one-touch cap 6 that 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 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. 6g is a dangling rib-like portion that is formed in a vertical manner on the ceiling surface of the rear side of the spout operating portion 6a and prevents the one-touch cap 6 from being rotated (pushed down) to spray the contents by contacting the upper end portion of the stopper 5c in the lock mode. are shown respectively.

[0036] Also, A is a container body side unit consisting of an integrated body (container body 1, mounting cup 2, housing 3, and rotating base 5, etc.) in which a substantially cylindrical rotating base 5 is fixedly attached to the mounting cup 2 of the container body 1, B (see FIG. 6) is the relative rotation direction of the container body side unit A when releasing the lock mode of FIG. 1 and transitioning to the unlocked / stationary mode of FIG. 6. are shown respectively.

[0037] 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 be made of wood, paper or a composite material thereof.

[0038] The stem gasket 4d is made of, for example, rubber or elastomer.

[0039] 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 portion 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 of the mounting cup and the hemispherical portions 5k, 5q of the pivot base 5. Things like that.

[0040] The relative rotational guidance of the rotation base 5 and the one-touch cap 6 in (42) is based on the guiding action between the one-touch cap 6 and the circumferential outer guide portion 5d.

[0041] In the drawings of this application (such as the locked mode in Figure 1 and the unlocked mode in Figure 6), for the sake of convenience of creation only the container body side unit A and the one-touch cap 6, which normally rotate relative to each other in the circumferential direction, are shown to rotate by approximately 1 / 4 of the length in the circumferential direction (approximately 90 degrees).

[0042] That is, the one-touch cap 6 is disposed at the same circumferential position in plan view in the locked mode of FIG. 1 and the unlocked mode of FIG.

[0043] In an actual use, only the one-touch cap 6 is rotated, or both the container body unit A and the one-touch cap 6 are rotated in the circumferential direction.

[0044] 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-like portion 6d of the one-touch cap 6.

[0045] In the locked mode of Figure 1, the shutter 5b closes the opening 6c to protect the outflow side of the spout passage portion 6b, and the stopper 5c is set below the locked hanging rib portion 6g to prevent the spout operating portion 6a from being pressed down.

[0046] When the container body unit A in FIG. 1 is rotated about 90 degrees clockwise (direction B) in a plan view relative to the one-touch cap 6, it shifts to the unlocked / stationary mode in FIG.

[0047] During this rotation operation, the engagement between the hemispherical portion 5k and the crimped concave portion 2c prevents relative rotation between the mounting cup 2 and the rotation base 5, and the container body 1, mounting cup 2 and rotation base 5 of the container body side unit A act as a single unit.

[0048] Therefore, the amount of relative rotation of the one-touch cap 6 with respect to the rotation base 5 required for mode switching coincides with the amount of circumferential movement of the one-touch cap 6 with respect to the container body unit A due to a rotation operation.

[0049] 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 or the like between them during the rotation operation, which makes it difficult to transition between the unlocked and locked modes.

[0050] In the unlocked / stationary mode of Fig. 6, the stopper 5c is set at a position shifted in the circumferential direction from the lower position of the locked hanging rib-like portion 6g, so that the spout operation portion 6a can be depressed, and by depressing this spout operation portion 6a, the stem 4 moves downward and the horizontal hole portion 4b of the valve action portion becomes open. Then, the contents of the container body 1 are discharged from the opening 6c to the external space area through the route "inside of the tube 3b-inside of the housing 3-horizontal hole portion 4b-stem passage portion 4a-spout passage portion 6b".

[0051] If the operation of setting the operating mode is stopped here, i.e., if the operation of pressing down the one-touch cap 6 is stopped, 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 portion 6a will also return to its initial state.

[0052] To transition the illustrated rotation prevention structure from the unlocked / stationary mode of FIG. 6 to the locked mode of FIG. 1, the user only needs to rotate the container body unit A relative to the one-touch cap 6 in the direction opposite to direction B.

[0053] FIG. 5 shows a plan view of the rotation prevention structure of the container body unit A. As shown in FIG.

[0054] When attaching the pivot base 5 to the mounting cup 2, the thin-walled bottom groove 5j of the inner piece 5h shrinks so that the maximum diameter portion 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 recess 2c. If the circumferential positions of the hemispherical part 5k and the crimped recess 2c do not match, the pivot base 5 is rotated slightly relative to the mounting cup 2.

[0055] Since the semispherical portion 5k is tightly engaged with the crimped recessed portion 2c by the restoring force of the thin-walled bottom groove portion 5j, the mounting cup 2 and the rotation base 5 are prevented from rotating relative to each other.

[0056] Furthermore, even if there are variations in the diameter of the central cylindrical portion 2b and the depth of the crimped recess 2c, the differences can be absorbed by the shrinkage of the thin-bottom groove portion 5j.

[0057] FIG. 7 shows a plan view of a rotation prevention structure of the container body side unit A using a rotation base 5 having a V-shaped cantilever 5n instead of the inner piece 5h.

[0058] When attaching this rotating base 5 to the mounting cup 2, each leg portion 5p of the V-shaped cantilever 5n opens elastically, the maximum diameter portion of the central cylindrical portion 2b passes between the opposing V-shaped cantilevers 5n, and then 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.

[0059] When the mounting cup 2 and the rotation base 5 attempt to rotate relative to each other with the hemispherical portion 5q engaged with the crimped recess 2c, one leg portion 5p of the V-shaped cantilever 5n is compressed between the annular wall portion 5a and the crimped recess 2c, acting as a "stop bar" to prevent the rotation. When the mounting cup 2 and the rotation 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 the rotation.

[0060] Furthermore, even if there are variations in the diameter of the central cylindrical portion 2b or the depth of the crimped recess 2c, the differences can be absorbed by opening the leg portions 5p of the V-shaped cantilevers 5n.

[0061] 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 this spray unit may be attached to the mounting cup 2 of a filled aerosol container.

[0062] FIG. 8 shows a rotation prevention structure in which a pair of side protective walls are provided on the exterior fixing part so as to surround the operation button.

[0063] Here, in FIG. 7 is an operating part protective attachment body (exterior fixing part) equipped with a side protective wall of the operating part, 7a is a circular 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 are a pair of V-shaped cantilevers formed on the inner peripheral surface of the annular wall portion 7a at opposing inner openings spaced apart by 180 degrees in the radial direction as shown in the figure, which are elastically deformed 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. 7d is a pair of legs 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 engaged 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, and protects 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. 8 is an operation button for ejecting the contents, which is fitted and fixed to the upper end of the stem 4; 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.

[0064] Here, the operating part protection attachment 7 and the operating buttons 8 are made of, for example, metal or plastic, similar to the rotating base 5, or may be made of wood, paper, or a composite material thereof.

[0065] The side protective wall 7f prevents the operation button 8 from accidentally entering the ejection state and releasing the contents when a container equipped with the operation part protective attachment 7 is dropped or when an object falls or hits the container, and prevents a strong external force applied to the operation button 8 from damaging the stem 4 connected to it or the valve mechanism below it.

[0066] 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, the design of the entire container can be improved and convenience can be added, such as making it easier for users to determine the spray direction by visually checking the printing on the container.

[0067] Such convenience is ensured because 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 concave portion 2c.

[0068] Note that a guide may be provided between the ejection button 8 and the exterior fixing part 7 so that they do not rotate about the axial direction of the stem 4 but are movable relative to each other only in the vertical direction.

[0069] Also, a valve mechanism may be used that allows the selection of whether or not to spray by rotating the operation button 8. In that 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 spray nozzle 8a is aligned with the front gap 7g.

[0070] FIG. 9 shows a rotation prevention structure in which an operation button is integrally provided on the exterior fixing part via a hinge part.

[0071] 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 a circular 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 opposing inner openings spaced apart by 180 degrees in the radial direction as shown in the figure, which are elastically deformed 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 legs constituting the V-shaped cantilever 9c, 9e is a pair (four in total) of semi-spherical parts formed on the tip side of the leg part 9d and engaged with the crimped recessed part 2c of the mounting cup 2. 9f is an operating part for ejecting the contents, 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.

[0072] Here, the operation unit integral attachment body 9 is made of, for example, metal or plastic, similar to the rotating base 5, or may be made of wood, paper, or a composite material thereof.

[0073] Since the lower end of the tube 3b is located in front of the container body 1, the contents can be discharged to the last drop when the nozzle 9g is tilted downward.

[0074] The operation portion integral attachment body 9 is engaged with the mounting cup 2 so that the orientation of the lower end of the tube 3b coincides with the orientation of the injection port 9g of the operation portion 9f.

[0075] In addition, by matching the printing pattern on the outer peripheral surface of the container body 1 with the direction of the spray nozzle 9g, the design of the entire container can be improved and convenience can be added, such as allowing users to easily determine the spray direction by visually checking the printing on the container.

[0076] Such convenience is ensured because the operation unit integrated attachment body 9 and the mounting cup 2, which is integrated with the container body 1 by clinching, are prevented from rotating by the engagement between the hemispherical portion 9e and the crimped concave portion 2c.

[0077] If the lower end of the tube 3b is set to be at the rear of the container body 1, the contents can be discharged to the last in applications where the nozzle 9g is tilted upward.

[0078] 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 (total of four places) 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 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.

[0079] Aerosol products to which the present 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 for a variety of uses.

[0080] The contents to be contained in the container body may be in various forms such as liquid, cream, gel, etc. The ingredients to be blended in the contents include, for example, powders, oils, alcohols, surfactants, polymer compounds, active ingredients for each application, water, etc.

[0081] The powdered materials used include metal salt powders, inorganic powders, resin powders, etc. For example, talc, kaolin, aluminum hydroxychloride (aluminum salt), calcium alginate, gold powder, silver powder, mica, carbonate, barium sulfate, cellulose, and mixtures thereof.

[0082] The oil components used 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, and the like.

[0083] As the alcohol, a monohydric lower alcohol such as ethanol, a monohydric higher alcohol such as lauryl alcohol, or a polyhydric alcohol such as ethylene glycol, glycerin, or 1,3-butylene glycol can be used.

[0084] As the surfactant, an anionic surfactant such as sodium lauryl sulfate, a nonionic surfactant such as polyoxyethylene oleyl ether, an amphoteric surfactant such as lauryl dimethylaminoacetate betaine, a cationic surfactant such as alkyltrimethylammonium chloride, or the like can be used.

[0085] Examples of the polymeric compound that can be used include methylcellulose, gelatin, starch, casein, hydroxyethylcellulose, xanthan gum, and carboxyvinyl polymer.

[0086] Active ingredients appropriate for each application 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 aminophenol, oxidants such as hydrogen peroxide, and fire extinguishers such as ammonium dihydrogen phosphate and sodium / potassium bicarbonate.

[0087] Furthermore, in addition to the above ingredients, suspending agents, ultraviolet absorbers, emulsifiers, moisturizing agents, antioxidants, sequestering agents, etc. may also be used.

[0088] The gas used to spray the contents in aerosol products includes compressed gases such as carbon dioxide, nitrogen gas, compressed air, oxygen gas, rare gases, and mixtures of these gases, as well as liquefied gases such as liquefied petroleum gas, dimethyl ether, and fluorocarbon. [Explanation of symbols]

[0089] (Figs. 1 to 9) 1: Container body 1a: Circular shoulder 2: Mounting cup 2a: Ring concave part 2b: Central cylindrical section 2c: Caulked concave part 2d: Circular top surface 3: Housing 3a: Upward annular step 3b: Tube 4: Stem 4a: Stem passage 4b: Lateral hole 4c: Coil spring 4d: Stem gasket

[0090] (Figs. 1 to 7) 5: Rotating base (exterior fixing part) 5a: Annular wall part 5b: Shutter 5c: Stopper 5d: Total of four circumferential outer guide parts 5e: A total of four circumferentially outwardly protruding portions 5f: Two rotation control parts 5g, 5g′: A total of four rotation control end faces 5h: A pair of inner pieces in the circumferential direction 5j: Thin bottom groove 5k: A pair of hemispherical parts 5m: flat part 5n: A pair of V-shaped cantilevers 5p: A pair of legs 5q: Total of four hemispherical parts 6: One-touch cap 6a: Spout operation unit 6b: Spout passage 6c: Opening for spraying contents 6d: Rib-shaped part for restricting rotation range 6e: Lower cylindrical part 6f: Circumferentially inwardly protruding portion 6g: Locked hanging rib A: Unit on the container body side B: Rotation operation direction from lock mode (Fig. 1) to unlock mode (Fig. 6) for unit A

[0091] (Figure 8) 7: Operation unit protection attachment (exterior fixing part) 7a: Annular wall part 7b: Total of four circumferential outer guide parts 7c: A pair of V-shaped cantilevers 7d: A pair of legs 7e: Total of four hemispherical parts 7f: A pair of side protection walls 7g: Front gap 7h: Rear gap 8: Operation buttons 8a: Nozzle

[0092] (Fig. 9) 9: Operation unit integrated attachment body (exterior fixing part) 9a: Annular wall part 9b: Total of four circumferential outer guide parts 9c: A pair of V-shaped cantilevers 9d: A pair of legs 9e: Total of four hemispherical parts 9f: Operation section 9g: Nozzle 9h: Hinge part

Claims

1. 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.

2. 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.

3. 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.

4. 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.

5. 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.

6. 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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