JP5989450B2 - Container shoulder cover - Google Patents

Description

  The present invention relates to a shoulder cover attached to a container having a mounting cup.

  For example, in an aerosol-type container that ejects contents using a pressurized medium, it is common to attach a metal mounting cup to the upper end opening of a bottomed cylindrical container body to withstand high internal pressure Attaching a nozzle that injects the contents when pushed down to the container stem and engaging and holding a shoulder cover made of synthetic resin using the edge of the mounting cup for the purpose of giving a decorative effect, etc. It is configured to do. In such a container, the nozzle and shoulder cover can be easily removed from the container body for the purpose of separating and discarding the container body that has used up its contents, and attaching the nozzle and shoulder cover to a new container body for reuse. A device that can be removed is known (see, for example, Patent Document 1).

JP 2008-247470 A

  In the push-down head type ejection container described in Patent Document 1, the cylindrical mounting member 14 as a shoulder cover is constituted by two members, a cylindrical base body 16 and a cylindrical operating body 40, and the cylindrical operating body 40 is formed. By screwing, the fastening of the leg piece 28 of the cylindrical base body 16 is released, so that the removal from the container body 2 can be performed easily.

  By the way, in the cylindrical operation body 40, since the screw part screwed to the cylindrical base | substrate 16 is formed in the internal peripheral surface of the exterior wall of the cylindrical operation body 40, the thickness of an exterior wall is local. Therefore, sink marks or the like may occur depending on variations in molding conditions, which may affect the appearance. In particular, in recent years, high appearance quality has been demanded in order to differentiate from other companies' products, and the development of new products that meet these requirements has been demanded. At the same time, it was also required to design the shoulder cover mechanism with a smaller size to increase the degree of design freedom and reduce the amount of resin to reduce costs.

  An object of the present invention is to solve these problems, and an object of the present invention is to provide an improved shoulder cover that can be easily removed from a container and can have a high appearance quality. There is a place to propose.

The present invention is a shoulder cover that is mounted on an annular edge formed on a mounting cup of a container and houses a nozzle for ejecting the contents in the container on its inner diameter side,
The shoulder cover comprises an inner cover located immediately above the annular edge and an outer cover covering the inner cover.
The inner cover is located on the inner diameter side of the annular edge, contacts the annular edge, restricts the rotation of the inner cover, and has an inner wall having an inner screw portion on an inner peripheral surface thereof, and is connected to the inner wall. And an outer wall that is integrally connected via the upper wall and located on the outer diameter side of the annular edge,
The outer cover surrounds the outer wall via an inner peripheral wall that is located on the inner diameter side of the inner wall and has an outer screw portion that engages with the inner screw portion on an outer peripheral surface thereof, and a ceiling wall that is connected to the inner peripheral wall, pressure press outer wall Te state smell outer cover is tightened to the annular edge, a shoulder cover of the container, characterized in that it comprises an outer peripheral wall for holding retaining the inner cover to the annular edge.

The outer wall is preferably provided with at least one outer slits to form an outer wall piece.

The upper cover of the inner cover is in contact with the small protrusion over the positioning protrusion formed on the inner peripheral surface of the outer peripheral wall and the positioning protrusion over the small protrusion in the tightening end region of the outer cover. preferably Rukoto have a large protrusion for stopping the tightening of the outer cover is provided.

The inner peripheral surface of the outer peripheral wall, at an upward displacement caused by the rotation of the loosening direction of said outer cover, is Rukoto have inward protruding portion engaged is provided on the outward projecting portion which projects from the outer wall preferable.

Between the inner cover and the outer cover, Rukoto have identification mechanism is provided for determining the arrival at the said open area in the clamping opening area of the outer cover caused by the rotation of the loosening direction is preferred.

On the outer cover, it provided the display for indicating at least one of the tightening direction and the loosening direction Rukoto are preferred.

  The shoulder cover is composed of an inner cover and an outer cover, and the inner screw portion formed on the inner wall of the inner cover is engaged with the outer screw portion formed on the inner peripheral wall of the outer cover, and the annular edge portion of the mounting cup Since the outer wall of the inner cover is provided on the outer diameter side of the outer cover, and the outer peripheral wall of the outer cover is provided so as to surround the outer wall, the outer cover is rotated downward in the tightening direction, so that the outer cover is displaced by screw engagement. The inner cover holding the cover is retained by the annular edge portion. On the other hand, when removing the inner cover and the outer cover from the container, it is only necessary to rotate the outer cover in the loosening direction, so that the conventional simple operation is maintained. In particular, since the external thread portion provided in the external cover is formed on the inner peripheral wall that cannot be directly seen from the outside of the container, the appearance is not impaired even if sink marks or the like occur around the external thread portion. In addition, as a result of providing the threaded portion using the inner wall of the inner cover and the inner peripheral wall of the outer cover, the size can be made smaller than the conventional two-part shoulder cover, so the degree of freedom in design is increased. As it increases, the amount of resin required can be reduced to reduce costs.

  When the outer wall of the inner cover is provided with at least one outer slit that cuts out the outer wall to form an outer wall piece, the amount of bending can be further increased. As a result, the mounting cup is tightened by tightening the outer cover. Sufficient allowance for the outer wall piece pressed against the edge is ensured, and the shoulder cover can be held more reliably. Further, when the outer cover is loosened, the outer wall piece is restored and a gap between the annular edge portion and the outer wall piece is secured, so that the shoulder cover can be removed more easily.

  On the upper wall of the inner cover, in the region where tightening of the outer cover is completed, the positioning protrusion formed on the inner peripheral surface of the outer peripheral wall gets in contact with the positioning protrusion that gets over the small protrusion and touches the positioning protrusion of the outer cover. When a large protrusion that stops tightening is provided, the user can recognize that the tightening of the outer cover has been completed by overcoming the small protrusion, and the large protrusion can prevent excessive tightening of the outer cover. There is no risk of over-tightening the outer cover and causing damage.

  If the inner wall of the outer wall is provided with an inward convex part that engages with the outer convex part that protrudes from the outer wall of the inner cover due to an upward displacement associated with the rotation of the outer cover in the loosening direction, it is removed. When the outer cover is lifted, the inner cover can be lifted together, so that the shoulder cover can be removed more easily.

  Should an identification mechanism be provided between the inner cover and the outer cover to determine when the outer cover has reached the open area in the tightening release area of the outer cover accompanying rotation in the loosening direction, the shoulder cover can be removed. This makes it possible for the user to recognize that it has become so that the usability is improved.

  When an indication indicating at least one of the tightening direction and the loosening direction is provided on the outer cover, it is easy to see in which direction the outer cover should be rotated, so that the shoulder cover can be attached and detached more easily.

FIG. 4 is a view of the shoulder cover according to the embodiment of the present invention, in which the outer cover is tightened and attached to the container, and shows a cross-sectional view and a side view with the axis as a boundary. (A) is the elements on larger scale which removed the overcap from the container of FIG. 1, (b) is sectional drawing in alignment with AA shown to (a), Comprising: The periphery of the positioning convex part of an outer cover Show only. It is the elements on larger scale which show the state after tightening an outer cover and after loosening an outer cover. It is a figure which shows the inner cover according to this invention, and shows sectional drawing and DD which follow DD of FIG. 5 by making an axis line into a boundary. It is an arrow line view (plan view) from the arrow B shown in FIG. It is an arrow view (bottom view) from the arrow C shown in FIG. It is a figure which shows the outer cover according to this invention, and shows sectional drawing and GG which follow GG of FIG. 8 by making an axis line into a boundary. It is an arrow view (plan view) from the arrow E shown in FIG. It is an arrow view (bottom view) from the arrow F shown in FIG.

Hereinafter, the present invention will be described more specifically with reference to the drawings.
FIG. 1 is a view of an embodiment of a shoulder cover according to the present invention, in which an outer cover is tightened and attached to a container, and FIG. 2 (a) is a partially enlarged view in which an overcap is removed from the container of FIG. 2B is a cross-sectional view along A-A shown in FIG. 2A (showing only the periphery of the positioning projection of the outer cover), and FIG. FIG. 4 is a partially enlarged view showing a state after the outer cover is loosened, and FIG. 4 is a view showing the inner cover according to the present invention, and FIG. 5 is an arrow view from the arrow B shown in FIG. 6 is an arrow view (bottom view) from the arrow C shown in FIG. 4, FIG. 7 is a view showing an outer cover according to the present invention, and FIG. FIG. 9 is an arrow view (plan view) from the arrow E shown in FIG. 7, and FIG. 9 is an arrow view (bottom view) from the arrow F shown in FIG.

  In FIG. 1, reference numeral 10 denotes a container, reference numeral 20 denotes a nozzle, and reference numeral 30 denotes a shoulder cover. The shoulder cover 30 is composed of two members, an inner cover 40 and an outer cover 50. Reference numeral 60 denotes an overcap.

  As shown in detail in FIG. 2 (a), the container 10 is formed by winding the outer edge of the mounting cup 12 which is also made of metal on the upper end of a metal container body 11 having a bottomed cylindrical shape ( For example, cosmetics, compressed gas, and the like are accommodated in a sealed space M formed inside thereof.

  The mounting cup 12 includes an annular wall 14 that hangs down from the annular edge 13, and a flanged cylindrical portion 15 that is integrally connected to the lower end edge of the annular wall 14 on the inner diameter side of the annular wall 14. Further, the cylindrical portion 15 is provided with a stem 16 that discharges the contents in the sealed space M by being pushed down.

  The nozzle 20 is made of synthetic resin, and has a vertical cylindrical portion 21 that is continuous with the stem 16 and a horizontal cylindrical portion 22 that extends obliquely upward from the upper end of the vertical cylindrical portion 21. On the radial side, an outer cylindrical portion 23 that is integrally connected to the vertical cylindrical portion 21 and the horizontal cylindrical portion 22 is provided. Furthermore, a claw portion 24 that projects toward the outer diameter side is provided at the lower end of the outer cylinder portion 23, and a gap is provided between the vertical cylinder portion 21 and the outer cylinder portion 23 in the circumferential direction. Reinforcing ribs 25 are provided.

  Next, the inner cover 40 will be described. The inner cover 40 is made of synthetic resin and is placed immediately above the annular edge 13. The inner cover 40 is an annular inner wall 41 located on the inner diameter side of the annular edge 13, and an upper part connected to the upper end of the inner wall 41. An outer wall 43 that is integrally connected via a wall 42 and is located on the outer diameter side of the annular edge 13 is provided. In the present embodiment, the upper wall 42 includes a stepped portion 44 at the connecting portion with the outer wall 43.

  As shown in FIG. 4, the inner wall 41 includes an inner screw portion 41 a on its inner peripheral surface (surface on the inner diameter side). Further, on the outer peripheral surface of the inner wall 41, there are provided support ribs 41b (in the present embodiment, three in a uniform arrangement in the circumferential direction as shown in FIG. 6). Here, as shown in FIG. 2A, the support rib 41 b comes into contact with the annular edge portion 13 to support the inner cover 40 when attached to the container 10. Furthermore, as shown in FIG. 4, on the outer peripheral surface of the inner wall 41, there are vertical convex portions 41c (in the present embodiment, six that are equally arranged in the circumferential direction as shown in FIG. 6) projecting to the outer diameter side. I have. Further, as shown in FIG. 4, the lower portion of the inner wall 41 is provided with at least one inner slit 41d cut out from the inner wall 41, whereby an inner wall piece 41e is formed. In the present embodiment, as shown in FIG. 6, six inner slits 41d are provided in the circumferential direction, and the inner wall 41 is more easily bent by separating the inner wall 41 into six inner wall pieces 41e. Therefore, even when the inner cover 40 is lifted while tilting in an oblique direction when the shoulder cover 30 is removed, the possibility of inadvertently damaging the inner wall 41 can be eliminated. In the case where the effect of preventing the rotation of the inner cover 40 with respect to the annular edge 13 of the mounting cup 12 is further enhanced, the inner wall 41 may be formed without the inner slit 41d.

  As shown in FIG. 4, the outer wall 43 includes a thin portion 43 a having a recessed outer peripheral surface, and a bulging portion 43 b that bulges toward the inner diameter side on the inner peripheral surface of the lower end portion. In addition, the outer peripheral surface of the upper portion of the thin portion 43a is provided with an outwardly projecting portion 43c that is annular in the present embodiment. Further, at the lower part of the outer wall 43, at least one outer slit 43d that cuts out the outer wall 43 is provided, whereby an outer wall piece 43e is formed. In the present embodiment, as shown in FIG. 6, three outer slits 43d are provided in a circumferentially arranged manner, thereby separating the outer wall 43 into three outer wall pieces 43e.

  As shown in FIG. 5, the step portion 44 includes a small protrusion 44a and a large protrusion 44b provided adjacent to the small protrusion 44a. In this embodiment, two sets of small protrusions 44a and large protrusions 44b are provided.

  Next, the outer cover 50 will be described. The outer cover 50 is formed of a synthetic resin and covers the inner cover 40 as shown in FIG. 2A, and an annular inner peripheral wall 51 located on the inner diameter side of the inner wall 41 of the inner cover 40. And an outer peripheral wall 53 surrounding the outer wall 43 through a top wall 52 connected to the upper end of the inner peripheral wall 51. In the present embodiment, an outer stepped portion 54 is provided at the connecting portion between the top wall 52 and the outer peripheral wall 53.

  As shown in FIG. 7, the inner peripheral wall 51 includes an outer screw portion 51 a on the outer peripheral surface (surface on the outer diameter side). The inner peripheral surface of the inner peripheral wall 51 is provided with a plurality of claw portions 51b projecting toward the inner diameter side at a lower portion thereof at intervals in the circumferential direction. A vertical rib 51c is provided on the upper portion of the claw portion 51b. A plurality are provided at intervals in the circumferential direction. In the present embodiment, as shown in FIG. 8, eight claw portions 51b and eight vertical ribs 51c are provided.

  The outer peripheral wall 53 includes a claw-shaped positioning convex portion 53a as shown in FIG. 9 at the upper part of the inner peripheral surface thereof. Furthermore, an inward convex portion 53 b that protrudes toward the inner diameter side is provided at the lower portion of the inner peripheral surface of the outer peripheral wall 53. In the present embodiment, as shown in FIG. 9, three inwardly protruding portions 53b are provided in the circumferential direction with an equal arrangement.

  As shown in FIG. 1, the overcap 60 has a form in which a cylindrical outer wall 62 is suspended from the outer edge of the top wall 61, and the nozzle 20 is accommodated inside and on the outer stepped portion 54 of the outer cover 50. Is detachably held.

  When attaching the nozzle 20, the inner cover 40, and the outer cover 50 configured as described above to the container 10, the inner cover 40 placed on the annular edge portion 13 of the mounting cup 12 as shown in FIG. The outer cover 50 in which the nozzle 20 has been inserted is put on and the outer cover 50 is rotated in the tightening direction. As a result, the outer cover 50 is displaced downward as shown in FIG. 2A, and the outer peripheral wall 53 presses the outer wall 43 against the annular edge 13. As a result, the bulging portion 43 b engages with the annular edge 13. The inner cover 40 is held by the annular edge 13 to prevent it from coming off. In addition, the claw portion 24 of the nozzle 20 engages with the claw portion 51b of the outer cover 50 and is held out.

  In the present embodiment, the thin wall portion 43a is provided on the outer wall 43 of the inner cover 40, and the outer wall piece 43e is formed by the outer slit 43d shown in FIG. The engagement between the cover 40 and the annular edge portion 13 can be performed more reliably. In the present embodiment, since the vertical convex portion 41c is provided on the inner wall 41 of the inner cover 40, the vertical convex portion 41c locally abuts on the annular wall 14 of the mounting cup 12 with high pressure. It becomes possible to press, and the detent effect of the inner cover 40 can be enhanced. Then, in the tightening end region of the outer cover 50, the tightening of the outer cover 50 is completed by the positioning convex portion 53a of the outer cover 50 getting over the small protrusion 44a of the inner cover 40 as shown in FIG. 2 (b). Can be recognized by the user. In addition, after overcoming the small protrusion 44a, the positioning protrusion 53a comes into contact with the large protrusion 44b adjacent to the small protrusion 44a and further tightening of the outer cover 50 is prevented, so that the outer cover 50 is tightened too much. There is no risk of damage.

  When ejecting the contents from the container 10, the stem 16 is also pushed down by depressing the nozzle 20, whereby the contents discharged through the stem 16 enter the outside through the internal passages of the vertical cylinder part 21 and the horizontal cylinder part 22. Erupted. In the present embodiment, since the vertical rib 51c is provided on the inner peripheral wall 51 of the outer cover 50, even if the nozzle 20 may be pushed obliquely, the portion with which the outer cylindrical portion 23 of the nozzle 20 contacts is Since it is limited to the vertical rib 51c and the entire contact with the inner peripheral wall 51 is avoided, the nozzle 20 can smoothly return to the original position.

  After the contents are used up, the outer cover 50 is rotated in the loosening direction. Thereby, as shown in FIG. 3, the outer cover 50 is displaced upward, the pressing to the outer wall 43 is released, and the outer wall 43 is restored to its original shape. When the outer cover 50 is lifted as it is, the inward convex portion 53b of the outer cover 50 is engaged with the outward convex portion 43c of the inner cover 40, and the inner cover 40 is also lifted together. Further, since the top wall 52 of the lifted outer cover 50 is hooked on the horizontal cylinder portion 22 of the nozzle 20, the outer cover 50, the inner cover 40 and the nozzle 20 can be removed together, and the work efficiency related to the removal is improved. . In this embodiment, the outward convex portion 43c is annular, and a plurality of inward convex portions 53b are provided intermittently. However, the outward convex portion 43c is provided intermittently and inwardly convex. The portion 53b may be annular, or both may be annular.

  Although not shown between the inner cover 40 and the outer cover 50, in the tightening release region of the outer cover 50 where the engagement between the inner cover 40 and the outer cover 50 is released with the rotation in the loosening direction. It is preferable to provide an identification mechanism for determining that the open area has been reached. As a specific configuration of the identification mechanism, for example, the outer cover 50 is rotated in the loosening direction between the inner wall 41 and the inner peripheral wall 51 or between the outer wall 43 and the outer peripheral wall 53 to reach the tightening release range. In this case, it is possible to provide a pair of convex portions that provide a feeling of clicking when one of them gets over the other, but various other known configurations can be applied.

  Although illustration is omitted, the shoulder cover 30 can be attached and detached more easily by providing a display (for example, an arrow) indicating at least one of the tightening direction and the loosening direction at a site where the outer cover 50 can be visually recognized. become.

  According to the present invention, it is possible to provide a shoulder cover that can be easily detached from a container and is excellent in appearance quality.

DESCRIPTION OF SYMBOLS 10 Container 12 Mounting cup 13 Annular edge 20 Nozzle 30 Shoulder cover 40 Inner cover 41 Inner wall 41a Inner screw part 41d Inner slit 42 Upper wall 43 Outer wall 43c Outward convex part 43d Outer slit 44a Small protrusion 44b Large protrusion 50 Outer cover 51 In Peripheral wall 51a External thread part 52 Top wall 53 Peripheral wall 53a Positioning convex part 53b Inward convex part

Claims (6)

A shoulder cover that is attached to an annular edge formed on the mounting cup of the container and houses a nozzle for ejecting the contents in the container on its inner diameter side,
The shoulder cover comprises an inner cover located immediately above the annular edge and an outer cover covering the inner cover.
The inner cover is located on the inner diameter side of the annular edge, contacts the annular edge, restricts the rotation of the inner cover, and has an inner wall having an inner screw portion on an inner peripheral surface thereof, and is connected to the inner wall. And an outer wall that is integrally connected via the upper wall and located on the outer diameter side of the annular edge,
The outer cover surrounds the outer wall via an inner peripheral wall that is located on the inner diameter side of the inner wall and has an outer screw portion that engages with the inner screw portion on an outer peripheral surface thereof, and a ceiling wall that is connected to the inner peripheral wall, pressure press outer wall to the annular edge Te state smell outer cover is tightened, the container shoulder cover, characterized in that it comprises an outer peripheral wall for holding retaining the inner cover to the annular edge. The outer wall, the container shoulder cover according to claim 1, further comprising at least one outer slit forming the outer wall pieces. The upper cover of the inner cover is in contact with the small protrusion over the positioning protrusion formed on the inner peripheral surface of the outer peripheral wall and the positioning protrusion over the small protrusion in the tightening end region of the outer cover. container shoulder cover according to claim 1 or 2 and the large projections that provided for stopping the clamping of the outer cover. The inner peripheral surface of the outer peripheral wall, claim said outer at rotating to accompany upward displacement of the cover to loosening direction, inward convex portion engaged with outward projecting portion which projects from the outer wall that provided The shoulder cover of the container in any one of 1-3. Between the inner cover and the outer cover, claim identification mechanism for determining the arrival at the said open area in the clamping opening area of the outer cover caused by the rotation of the loosening direction that provided 1-4 The shoulder cover of the container in any one of. On the outer cover, the tightening direction and the loosening direction of the container shoulder cover according to claim 1 that has the display is provided indicating at least one.

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