Aerosol container shoulder cover

Abstract

To provide a shoulder cover for an aerosol container which can be easily attached to and detached from a mountain cup without impairing the aesthetic appearance of the container. [Solution] A shoulder cover 10 for an aerosol container 100, the shoulder cover 10 having a top surface portion 20, a peripheral wall portion 30, and a spout arrangement portion 40, the peripheral wall portion 30 having a double-wall structure portion 32 comprising an inner wall 33 having a mountain cup fitting portion 33a that fits into a mountain cup 101, and an outer wall 34, the inner wall 33 having a slit 33b extending in the height direction Z, and when a pressing operation is performed by pressing a position on the outer wall 34 in the circumferential direction that corresponds to the slit 33b, the inner wall 33 deforms and the fitting between the mountain cup fitting portion 33a and the mountain cup 101 is released.

Description

[Technical Field]

[0001] The present invention relates to a shoulder cover for an aerosol container. [Background technology]

[0002] Aerosol containers are known as containers that contain cosmetics, cleansers, hair treatment agents, and the like as liquid contents and dispense the liquid in the form of foam. Aerosol containers are formed by attaching a metal cap to the upper opening of a cylindrical container body with a bottom so that the container can withstand high internal pressure. The stem protruding from the cap is pushed downward against the biasing force of the valve mechanism, thereby opening the valve mechanism held by the cap, allowing the liquid contents, which contain a propellant or compressed gas dissolved in the liquid contents or which have been mixed with the propellant or compressed gas and become foamy, to be dispensed from the outlet of a nozzle attached and communicated with the stem.

[0003] A shoulder cover to be attached to a mountain cup of an aerosol container is known, which includes an outer cylindrical member and an inner cylindrical member positioned inside the outer cylindrical member (see Patent Document 1). In the shoulder cover of this document, an annular protrusion is provided on the inner peripheral edge of the lower end of the inner cylindrical member, and the annular protrusion engages with the lower edge of the mountain cup, thereby attaching the shoulder cover to the mountain cup. The outer cylindrical member is also slidable up and down. As the outer cylindrical member slides upward, the upper end of the inner cylindrical member is pressed radially inward by the outer cylindrical member, and the reaction force causes the lower end of the inner member to expand radially outward. This releases the engagement between the annular protrusion and the mountain cup, allowing the shoulder cover to be removed from the mountain cup.

[0004] When attaching the shoulder cover of Patent Document 1 to the mountain cup, the outer cylindrical member is slid downward with the annular protrusion positioned on the lower edge of the mountain cup. This releases the outer cylindrical member from pressing the upper end of the inner cylindrical member radially inward, and also releases the lower end of the inner cylindrical member from expanding radially outward. As a result, the annular protrusion engages with the lower edge of the mountain cup, and the shoulder cover is attached to the mountain cup. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-5965 Summary of the Invention [Problem to be solved by the invention]

[0006] The shoulder cover of Patent Document 1 requires the external tubular member to be slid vertically to be attached to or detached from the mountain cup. Therefore, the shoulder cover of this document requires two components: an external tubular member and an internal tubular member that is separate from the external tubular member, resulting in a complex structure. Furthermore, because the internal tubular member must be fixed in order to allow the external tubular member to slide vertically, it is difficult to attach or detach the shoulder cover of this document with one hand, and the attachment or detachment of the shoulder cover of this document is not necessarily easy. Furthermore, when the external tubular member is slid downward, i.e., when the shoulder cover is attached to the mountain cup, the upper end of the internal tubular member extends and is exposed beyond the upper end of the external tubular member, which detracts from the aesthetic appearance of the shoulder cover.

[0007] This invention relates to a shoulder cover for an aerosol container that can be easily attached and detached to a mountain cup without damaging the aesthetic appearance. [Means for solving the problem]

[0008] The present invention relates to a shoulder cover for an aerosol container that is detachably attached to the mountain cup of the aerosol container. In one embodiment, the shoulder cover preferably has a top surface portion, a peripheral wall portion, and a spout arrangement portion in which a spout having a stem fitting portion that fits onto the stem of the aerosol container is arranged so as to be movable up and down. In one embodiment, the peripheral wall portion preferably has a double-wall structure including an inner wall having a mountain cup fitting portion that fits into the mountain cup, and an outer wall that is positioned radially outward of the inner wall. In one embodiment, the inner wall preferably has a slit extending in the height direction of the inner wall. In one embodiment, it is preferable that when a pressing operation is performed by pressing a position on the outer wall corresponding to the slit in the circumferential direction, the inner wall deforms and the engagement between the mountain cup fitting portion and the mountain cup is released. [Effects of the Invention]

[0009] The shoulder cover for the aerosol container of the present invention can be easily attached to and detached from the aerosol container without impairing the aesthetic appearance. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 1(a) is a perspective view showing a first preferred embodiment of a shoulder cover of the present invention attached to an aerosol container, and FIG. 1(b) is an exploded perspective view of FIG. 1(a). [Figure 2] FIG. 2 is a cross-sectional view taken along line II-II in FIG. [Figure 3] Figure 3(a) is an oblique view from below of the shoulder cover of the first embodiment with a spout placed in the spout placement section, Figure 3(b) is an oblique view from below of the shoulder cover of the first embodiment with no spout placed in the spout placement section, and Figure 3(c) is an oblique view from below of a spout placed in the spout placement section of the shoulder cover of the first embodiment. [Figure 4] FIG. 4 is a side view schematically showing an inner wall of the shoulder cover of the first embodiment. [Figure 5]FIG. 5 is a perspective view showing a state in which the shoulder cover of the first embodiment is removed from the mountain cup of the aerosol container. [Figure 6] Figures 6(a) and (b) are diagrams for explaining how the inner wall deforms when a pressing operation is performed on the shoulder cover of the first embodiment, where Figure 6(a) is a schematic cross-sectional view of the shoulder cover of the first embodiment attached to an aerosol container when no pressing operation is performed, and Figure 6(b) is a schematic cross-sectional view of the shoulder cover of the first embodiment attached to an aerosol container when a pressing operation is performed. [Figure 7] FIG. 7 is a schematic diagram for explaining a state in which the slits in the inner wall are arranged opposite to each other. [Figure 8] FIG. 8(a) is a partially transparent perspective view showing the state in which a cap is attached to the shoulder cover of the first embodiment, and FIG. 8(b) is a perspective view showing the state in which the spout has been removed from the shoulder cover of the first embodiment. [Figure 9] 9(a) and 9(b) are partially see-through perspective views showing a state in which another cap is attached to the shoulder cover of the first embodiment. [Figure 10] Figures 10(a) to (c) are partially cutaway perspective views showing another modified example of the shoulder cover of the first embodiment, and Figure 10(d) is a partially see-through perspective view showing the shoulder cover shown in Figure 10(c) with a cap attached. [Figure 11] FIG. 11(a) is a perspective view of a second embodiment of the shoulder cover of the present invention viewed from below, and FIGS. 11(b) and (c) are schematic side views of slits provided in the shoulder cover of the second embodiment. [Figure 12] FIG. 12 is a perspective view of a shoulder cover according to a third embodiment of the present invention, seen from below. DETAILED DESCRIPTION OF THE INVENTION

[0011] The present invention will now be described based on preferred embodiments with reference to the drawings. Figure 1 shows an aerosol container equipped with an embodiment of the shoulder cover of the present invention.

[0012] As shown in FIGS. 1(a) and 1(b), the shoulder cover 10 of this embodiment is detachably attached to the mountain cup 101 of the aerosol container 100. The shoulder cover 10 has a height direction Z. The height direction Z of the shoulder cover 10 coincides with the vertical direction when the aerosol container 100 with the shoulder cover 10 attached is placed on a support surface with the bottom of the aerosol container 100 facing the support surface. In this specification, the upward direction in the height direction (hereinafter simply referred to as "upward") refers to the upward direction in the vertical direction when the aerosol container 100 with the shoulder cover 10 attached is placed on a support surface with the bottom of the aerosol container 100 facing the support surface. Furthermore, the downward direction in the height direction (hereinafter simply referred to as "downward") refers to the downward direction in the vertical direction when the aerosol container 100 with the shoulder cover 10 attached is placed on a support surface with the bottom of the aerosol container 100 facing the support surface.

[0013] As shown in Figures 1 and 2, the shoulder cover 10 has a top surface portion 20, a peripheral wall portion 30, and a spout arrangement portion 40. The top surface portion 20 forms the upper end surface of the shoulder cover 10. The top surface portion 20 has a ring shape that is approximately a perfect circle when viewed from above. The top surface portion 20 may also have a ring shape that is approximately elliptical when viewed from above. Note that the top surface portion 20 does not have to have a ring shape when viewed from above, and may have a polygonal shape with more than one side, for example, a triangle.

[0014] As shown in Figures 2 and 3(a) and (b), the peripheral wall portion 30 has a double-wall structure portion 32 including an inner wall 33 and an outer wall 34 located radially outward of the inner wall 33. The peripheral wall portion 30 has a single-wall structure portion 31 above the double-wall structure portion 32. The upper end of the single-wall structure portion 31 is connected to the outer peripheral edge portion 22 of the top surface portion 20. The outer wall 34 of the double-wall structure portion 32 is connected to the lower end of the single-wall structure portion 31 via a step portion 35. The inner wall 33 of the double-wall structure portion 32 is connected to the lower surface of the step portion 35. In other words, the outer wall 34 and the inner wall 33 are continuous via the step portion 35. Both the inner wall 33 and the outer wall 34 have an annular shape in a plan view.

[0015] The inner wall 33 has a mountain cup fitting portion 33a that fits into the mountain cup 101. The mountain cup fitting portion 33a is provided at the lower end of the inner wall 33. The mountain cup fitting portion 33a protrudes radially inward from the inner wall 33. The mountain cup fitting portion 33a extends continuously in the circumferential direction.

[0016] In this embodiment, the inner wall 33 has a slit 33b extending in the height direction Z of the inner wall 33. The inner wall 33 has two slits 33b, 33b, and the two slits 33b, 33b are arranged opposite each other. The two slits 33b, 33b have the same shape and size. The slit 33b extends over the entire length of the inner wall 33 in the height direction Z (see FIG. 4). In other words, the longitudinal length L of the slit 33b is the same as the height H of the inner wall 33 (see FIG. 4).

[0017] As shown in FIG. 2, a spout 50 having a stem fitting portion 52b that fits onto the stem 102 of the aerosol container 100 is arranged in the spout arrangement portion 40 so as to be movable up and down. As shown in FIGS. 2 and 3, the spout arrangement portion 40 has a generally cylindrical shape. The spout arrangement portion 40 is continuous in the circumferential direction. The upper end of the spout arrangement portion 40 is connected to the inner peripheral edge portion 21 of the top surface portion 20. The lower end of the spout arrangement portion 40 is provided with locking protrusions 41 that protrude radially inward. The locking protrusions 41 are arranged intermittently along the circumferential direction of the spout arrangement portion 40.

[0018] The spout 50 includes a head portion 51 having a discharge flow path 51a formed therein, a cylindrical inner tubular portion 52 extending downward from the head portion 51 and having a vertical flow path 52a formed therein, and an outer tubular portion 53 extending downward from the head portion 51 and positioned radially outward from the inner tubular portion 52. The lower end of the inner tubular portion 52 serves as a stem fitting portion 52b. The lower end of the outer tubular portion 53 is provided with a locking projection 53a that projects radially outward. The locking projection 53a extends continuously around the entire circumferential circumference of the outer tubular portion 53.

[0019] When spout 50 is disposed in spout arrangement section 40 and moves upward, locking protrusion 53a of spout 50 is locked with locking protrusion 41 of spout arrangement section 40. This prevents spout 50 from slipping out of spout arrangement section 40.

[0020] One of the features of the shoulder cover 10 of this embodiment is that when a pressing operation is performed by pressing a position on the outer wall 34 that corresponds to the slit 33b in the circumferential direction, the inner wall 33 deforms, and the mountain cup fitting portion 33a and the mountain cup 101 are disengaged from each other. This feature allows the shoulder cover 10 to be easily attached to and detached from the aerosol container without compromising the aesthetic appearance. This point will be described in detail below.

[0021] When removing the shoulder cover 10 from the aerosol container 100, as shown in FIG. 5 , a pressing operation is performed by pressing the outer wall 34 at a position corresponding to the slit 33b in the circumferential direction. When the pressing operation is performed, the outer wall 34 deforms so that its diameter decreases in the pressing direction X. Meanwhile, the outer wall 34 deforms so that its diameter increases in the direction perpendicular to the pressing direction X. Because the outer wall 34 is continuous with the inner wall 33 via the step portion 35, the external force applied to the outer wall 34 by the pressing operation is also transmitted to the inner wall 33, and the inner wall 33 also tends to deform in the same manner as the outer wall 34. Because the inner wall 33 has the slit 33b, the inner wall 33 is easily deformed by the external force transmitted from the outer wall 34. In other words, when the pressing operation is performed, the inner diameter T of the mountain-cup fitting portion 33a of the inner wall 33 in the Y direction increases, as shown in FIGS. 6( a) and 6(b). As a result, the engagement between the mountain cup engaging portion 33a and the mountain cup 101 is released at least in the Y direction, so that the shoulder cover 10 can be easily removed from the aerosol container 100.

[0022] When attaching the shoulder cover 10 to the aerosol container 100, the shoulder cover 10 can be easily attached to the aerosol container 100 by pressing the outer wall 34 at a position corresponding to the slit 33b in the circumferential direction. Specifically, the portion of the mountain cup fitting portion 33a where the inner diameter T has been increased by the pressing operation is first fitted into the mountain cup 101. Thereafter, while releasing the pressing operation, other portions of the mountain cup fitting portion 33a are fitted into the mountain cup 101, thereby easily attaching the shoulder cover 10 to the aerosol container 100. Note that even when the shoulder cover 10 is pushed into the aerosol container 100 from above without performing a pressing operation, the inner wall 33 is likely to deform so as to expand when the mountain cup 101 is pushed into the mountain cup fitting portion 33a, so the shoulder cover 10 can be easily attached to the aerosol container 100.

[0023] As described above, the shoulder cover 10 can be easily attached to and detached from the aerosol container 100 simply by pressing the outer wall 34 to deform the inner wall 33. Therefore, the shoulder cover 10 can be attached to and detached from the aerosol container 100 without impairing the aesthetic appearance.

[0024] The shoulder cover 10 has a simple structure and can be easily manufactured at low cost. Furthermore, the shoulder cover 10 does not require the outer wall 34 and the inner wall 33 to be separate bodies, and can be formed from a single member.

[0025] From the viewpoint of making it easier to deform the inner wall 33, the ratio of the sum of the widths D (see FIG. 4) of the slits 33b to the length of the inner circumference of the inner wall 33 is preferably 4% or more, more preferably 8% or more, and even more preferably 12% or more. Here, the ratio refers to the value obtained by dividing the sum of the widths D of one or more slits 33b in the inner wall 33 by the length of the inner circumference of the inner wall 33 and multiplying the result by 100. The upper limit of the ratio can be, for example, 30%.

[0026] To more easily deform the inner wall 33, the width D (see FIG. 4) of each slit 33b is preferably 2 mm or more, more preferably 4 mm or more, and even more preferably 6 mm or more. The upper limit of the width D of the slit 33b can be set to, for example, 12 mm.

[0027] When the inner wall 33 has multiple slits 33b, as in the shoulder cover 10, the width D of each slit 33b may be the same or different. Furthermore, the shapes and longitudinal lengths of the multiple slits 33b may be the same or different. The longitudinal length L of the slit 33b may be the same as the height H of the inner wall 33, or may be shorter than the height H of the inner wall 33. When the inner wall 33 has multiple slits 33b whose longitudinal length L is shorter than the height H of the inner wall 33, the lengths L of the multiple slits may be the same or different.

[0028] Although the inner wall 33 of the shoulder cover 10 of this embodiment has two slits 33b, the inner wall 33 may have only one slit 33b. From the viewpoint of making the inner wall 33 more easily deformable when an external force applied to the outer wall 34 by a pressing operation is transmitted to the inner wall 33, the inner wall 33 preferably has multiple slits 33b. When the inner wall 33 has multiple slits 33b, the multiple slits 33b preferably include a pair of slits 33b arranged opposite each other. Here, "a pair of slits 33b arranged opposite each other" means that there is an imaginary line V that passes through both of the pair of slits 33b and the centroid P of the inner wall 33 in a plan view. FIG. 7 schematically shows a plan view of the inner wall 33 having three slits 36a, 36b, and 36c. In the example shown in FIG. 7, the slit 36a and the slit 36c are arranged opposite each other. The slit 36a and the slit 36b are not arranged opposite each other. The slits 36b and 36c are not arranged opposite each other.

[0029] As shown in FIG. 8(a), the shoulder cover 10 has a detachable cap 60A that covers the spout 50 arranged in the spout arrangement portion 40. The cap 60A has an overall cylindrical shape. The cap 60A has a top surface portion 61 and a peripheral wall portion 62. The interior of the cap 60A, i.e., the space surrounded by the top surface portion 61 and the peripheral wall portion 62, is hollow, and when the cap 60A is attached to the shoulder cover 10, the spout 50 and the single-wall structure portion 31 are arranged in this space.

[0030] The cap 60A has a flat portion 61a on the top surface 61, where the top surface is flat. Here, a flat top surface includes a case where the top surface is a flat surface without any irregularities, and a case where the top surface is flat with some irregularities. In the cap 60A, the entire top surface of the top surface 61 is the flat portion 61a. Because the flat portion 61a is a flat top surface, it is easy for a user to press with their finger. Therefore, since the top surface 61 of the cap 60A has the flat portion 61a, the shoulder cover 10 to which the cap 60A is attached can be easily attached to the aerosol container 100 by pressing the flat portion 61a of the shoulder cover 10.

[0031] From the viewpoint of making it easier to press the flat portion 61a, it is preferable that the area S1 of the flat portion 61a (see FIG. 8(a)) be larger than the area S2 of the top surface portion 20 of the shoulder cover 10 (see FIG. 8(b)). When pressing the top surface 20 of the shoulder cover 10 to attach the shoulder cover 10 to the aerosol container 100, it may be difficult to press the top surface 20 approximately evenly over the entire circumferential area. By pressing the flat portion 61a of the cap 60A with the cap 60A attached to the shoulder cover 10, it becomes easier to press the shoulder cover 10 with the cap 60A attached approximately evenly over the entire circumferential area, making it easier to attach the shoulder cover 10 to the aerosol container 100. This effect is particularly pronounced when the area S1 of the flat portion 61a is larger than the area S2 of the top surface portion 20 of the shoulder cover 10.

[0032] In order to make the flat portion 61a easier to press, the area S1 of the flat portion 61a (see FIG. 8(a)) is preferably 6 cm 2 More than 7cm, preferably2 The lower limit of the area S1 is, for example, 5 cm 2 is.

[0033] 9(a) and 9(b) show modified examples of cap 60A. Cap 60B shown in FIG. 9(a) has a peripheral wall 62 tapered upward. Cap 60B also has a curved surface 63 at the boundary between top surface 61 and peripheral wall 62, where the outer surface is curved. Cap 60C shown in FIG. 9(b) has a sloped portion 62a at a portion of peripheral wall 62 that slopes inward in the circumferential direction of peripheral wall 62 as it extends upward. Like cap 60B, cap 60C also has a curved surface 63 at the boundary between top surface 61 and peripheral wall 62. In both caps 60B and 60C, the entire top surface of top surface 61 is a flat portion 61a. The area of ​​the portion shaded diagonally downward to the left in FIGS. 9(a) and 9(b) is the area S1 of flat portion 61a.

[0034] It is preferable that the shoulder cover 10 has a marking portion that indicates the position of the slit 33b formed on at least one of the top surface portion 20, the peripheral wall portion 30, and the boundary portion 7 between the top surface portion 20 and the peripheral wall portion 30 (see FIGS. 10(a) to 10(d)). The advantages of doing so are as follows: As described above, the shoulder cover 10 can be easily attached and detached by pressing a position on the outer wall 34 that corresponds to the slit 33b in the circumferential direction. However, the slit 33b is formed on the inner wall 33, and the outer wall 34 is located outside the inner wall 33. Therefore, when visually checking the shoulder cover 10, the position of the slit 33b cannot be visually confirmed, and it may not be easy to recognize the position on the outer wall 34 that corresponds to the slit 33b. Even in such a case, by forming a marker portion on at least one of the top surface portion 20, the peripheral wall portion 30, and the boundary portion 7 between the top surface portion 20 and the peripheral wall portion 30, the position corresponding to the slit 33b in the outer wall 34 can be easily recognized by visually checking the marker portion. Note that the marker portion is a portion for indicating the position of the slit 33b to the user, and specific examples of the marker portion include a visible indication such as a recess, a protrusion, a step, printing, or coloring, as well as any other form that can be identified visually or tactilely, such as an area with changed surface roughness by knurling or the like.

[0035] 10(a) shows an example in which a mark portion 70a is formed on the top surface portion 20. The mark portion 70a has a substantially hexagonal shape in a plan view. The mark portion 70a is formed by recessing the top surface of the top surface portion 20.

[0036] FIG. 10(b) shows an example in which a mark portion 70b is formed at the boundary 7 between the top surface portion 20 and the peripheral wall portion 30. The mark portion 70b is formed by chamfering a portion of the boundary 7 in the circumferential direction into a curved shape. The mark portion 70b has a curved shape that convexly extends radially outward. The portion of the boundary 7 other than the mark portion 70b is a corner where the top surface of the top surface portion 20 and the outer surface of the single-wall structure portion 31 are connected at approximately right angles. Therefore, when the boundary 7 is visually recognized, the curved mark portion 70b can be easily recognized. Furthermore, when the boundary 7 is touched with a hand, the mark portion 70b can be easily recognized.

[0037] 10(c) shows an example in which a mark portion 70c is formed on the peripheral wall portion 30, more specifically, on the outer wall 34. The mark portion 70c is formed by protruding radially outward from a portion of the circumferential direction of the outer wall 34. The mark portion 70c is continuous from the upper end to the lower end of the outer wall 34 in the height direction Z. Furthermore, the mark portion 70c may be formed by providing irregularities by knurling or the like on a portion of the circumferential direction of the outer wall 34. In this case, a knurled portion (knurled portion) provided in a position of the outer wall 34 of the double-wall structure 32 corresponding to the slit 33b functions as the mark portion 70c, and the user of the shoulder cover 10 can easily identify the knurled portion by sight or by touch. Furthermore, the knurled portion serving as the mark portion 70c may be continuous from the upper end to the lower end of the outer wall 34 in the height direction Z, or may be formed only on a portion of the height direction Z.

[0038] The marking portions are preferably formed in portions that are not covered by the caps 60A to 60C when the caps 60A to 60C are attached to the shoulder cover 10 (see FIGS. 10(c) and 10(d)). By doing so, the marking portions 70c can be seen or touched even when the caps 60A to 60C are attached to the shoulder cover 10, and the positions corresponding to the slits 33b in the outer wall 34 can be easily recognized. In particular, when the marking portions 70c are formed on the outer wall 34 and the marking portions 70c are formed by providing irregularities on the surface of the outer wall 34 by knurling or the like, the knurled portions are exposed in portions that are not covered by the caps 60A to 60C even when the caps 60A to 60C are attached to the shoulder cover 10. Therefore, even when the caps 60A to 60C are attached to the shoulder cover 10, the user of the shoulder cover 10 can easily recognize the mark portions 70c formed by knurling by sight or by touch with their fingertips.

[0039] When a plurality of slits 33b are provided in the inner wall 33, it is not necessary to form a marking portion for all of the plurality of slits 33b. A marking portion indicating the position of only one of the plurality of slits 33b may be formed. From the viewpoint of making it easier to perform the pressing operation, it is preferable to form a marking portion indicating the positions of slits 33b that face each other among the plurality of slits 33b.

[0040] Next, a second embodiment of the shoulder cover of the present invention will be described with reference to Figure 11. Regarding the second embodiment, differences from the first embodiment will be described, and the description of the first embodiment will be applied as appropriate to points not specifically described.

[0041] As shown in Fig. 11(a), the shoulder cover 10B of the second embodiment has an inner wall 33 with six slits 37a to 37f. Slits 37a, 37c, 37d, and 37f have the same shape and size. Slits 37b and 37e also have the same shape and size. Slits 37a, 37c, 37d, and 37f are different in shape and size from slits 37b and 37e.

[0042] The slit length L1 of the slits 37b and 37e is the same as the height H of the inner wall 33 (see FIG. 11(b)). In other words, the slits 37b and 37e are continuous from the upper end to the lower end of the inner wall 33. In contrast, the slit length L2 of the slits 37a, 37c, 37d, and 37f is shorter than the height H of the inner wall 33 (see FIG. 11(c)). When the slit length L2 is shorter than the height H of the inner wall 33, it is preferable that the lower end of the slit reaches the lower end of the inner wall, from the viewpoint of making the inner wall 33 more easily deformable (see FIG. 11(c)).

[0043] Furthermore, the width D1 of the slits 37b and 37e is greater than the width D2 of the slits 37a, 37c, 37d, and 37f.

[0044] In shoulder cover 10B, slits 37a and 37d are arranged opposite each other, slits 37b and 37e are arranged opposite each other, and slits 37c and 37f are arranged opposite each other.

[0045] Next, a third embodiment of the shoulder cover of the present invention will be described with reference to Fig. 12. Regarding the third embodiment, differences from the first and second embodiments will be described, and the explanations regarding the first and second embodiments will be applied as appropriate to points not specifically described.

[0046] As shown in FIGS. 12(a) to 12(c), in the shoulder cover 10C of the third embodiment, the inner wall 33 has an auxiliary protrusion 8 that protrudes toward the outer wall 34 at the end of the inner wall 33 in the slit 33b. This makes it easier for an external force applied to the outer wall 34 by a pressing operation to be transmitted to the inner wall 33. As described above, the outer wall 34 is continuous with the inner wall 33 via the step portion 35, so that an external force applied to the outer wall 34 by a pressing operation is also transmitted to the inner wall 33. When the distance between the outer wall 34 and the inner wall 33 is relatively short, the external force is easily transmitted to the inner wall 33, whereas when the distance between the outer wall 34 and the inner wall 33 is relatively far, the external force is less likely to be transmitted to the inner wall 33. By having the auxiliary protrusions 8 on the inner wall 33, even if the distance between the outer wall 34 and the inner wall 33 is relatively large, the inner surface of the outer wall 34 is more likely to come into contact with the auxiliary protrusions 8 when the outer wall 34 is pressed, so that the external force is transmitted to the inner wall 33 also through the auxiliary protrusions 8, and the inner wall 33 can be deformed more reliably.

[0047] In the shoulder cover 10C, an auxiliary protrusion 8 is formed at the end of the inner wall 33 in each of the two slits 33b, but the auxiliary protrusions 8 may be formed at the end of the inner wall 33 in only some of the slits 33b among the multiple slits 33b. Also, an auxiliary protrusion 8 is formed at each of both end portions of the inner wall 33 in the slit 33b, but the auxiliary protrusion 8 may be formed at only one end of the inner wall 33.

[0048] Next, matters common to each embodiment will be described. Examples of materials that can be used to make shoulder covers 10, 10B, and 10C include polyolefin resins such as PP (polypropylene) and PE (polyethylene), polyester resins such as ABS (acrylonitrile-butadiene-styrene copolymer synthetic resin), acrylic, and PET (polyethylene terephthalate), polystyrene resins such as PCT (polycyclohexylene-dimethylene-terephthalate) and SAN (styrene-acrylonitrile copolymer), polyamide resin, polyvinyl chloride, polylactic acid, elastomer, and other synthetic resins. The synthetic resins may contain at least a portion of recycled resin.

[0049] Although the present invention has been described above based on the preferred embodiments thereof, the present invention is not limited to the above-described embodiments.

[0050] For example, the upper end of the single-wall structural portion 31 may be connected radially inward from the outer peripheral edge portion 22 of the top surface portion 20. In other words, the top surface portion 20 may extend radially outward from the position where the upper end of the single-wall structural portion 31 is connected to the top surface portion 20. The mountain cup fitting portions 33a may be arranged intermittently in the circumferential direction. The locking protrusions 41 of the spout mounting portion 40 may be continuous over the entire circumferential area of ​​the spout mounting portion 40. The locking protrusions 53a of the spout 50 may be arranged intermittently in the circumferential direction of the outer tubular portion 53. [Explanation of symbols]

[0051] 10 Shoulder Cover 20 Top section 30 Peripheral wall part 33 Inner wall 33a Mountain cup fitting 33b Slit 34 Exterior Wall 40 Spout placement section 50 spouts 100 aerosol containers 101 Mountain Cup 102 Stem

Claims

1. A shoulder cover for an aerosol container that is detachably attached to a mountain cup of the aerosol container, the shoulder cover has a top surface portion, a peripheral wall portion, and a spout arrangement portion in which a spout having a stem fitting portion that fits onto the stem of the aerosol container is arranged so as to be movable up and down; the peripheral wall portion has a double-wall structure portion including an inner wall having a mountain cup fitting portion that fits into the mountain cup, and an outer wall located radially outward of the inner wall, The inner wall has a slit extending in a height direction of the inner wall, When a pressing operation is performed by pressing a position on the outer wall corresponding to the slit in the circumferential direction, the inner wall deforms and the mountain cup fitting portion and the mountain cup are disengaged from each other.

2. The shoulder cover according to claim 1 , wherein the inner wall has a plurality of the slits, and the plurality of slits includes a pair of slits arranged opposite each other.

3. 3. The shoulder cover according to claim 1, wherein a mark indicating the position of the slit is formed on at least one of the top surface, the peripheral wall, and a boundary between the top surface and the peripheral wall.

4. The shoulder cover according to claim 3, wherein a cap that covers the spout arranged in the spout arrangement portion is detachable, and the marker portion is formed in a portion that is not covered by the cap when the cap is attached to the shoulder cover.

5. The shoulder cover has a detachable cap that covers the spout disposed in the spout arrangement portion, The shoulder cover according to claim 1 or 2, wherein the cap has a flat portion on the top surface thereof, the flat portion being a flat top surface.

6. 3. The shoulder cover according to claim 1, which is made of a synthetic resin material containing recycled resin.

7. The shoulder cover according to claim 1 or 2, wherein the inner wall has an auxiliary protrusion protruding toward the outer wall at an end of the inner wall in the slit.

Images