Exterior part and discharge product

Abstract

To provide exterior parts that can be easily and reliably removed.SOLUTION: An exterior part comprises a cover member 20 attached to a discharge container 2, and an operation member 30 rotatably and operably attached to the cover member 20. The cover member 20 comprises an elastic oscillating part 25, and an engaging projection 26 provided on the elastic oscillating part 25 and engaging with the discharge container 2 from its outer circumference side. The operation member 30 comprises a contact part 33 for oscillating the elastic oscillating part 25 with rotational operation. When the engaging projection 26 is engaged with the discharge container 2, the elastic oscillating part 25 is not oscillated or is oscillated within a range that maintains the engaged state. When the operation member 30 is rotatably operated, it is oscillated in a direction that releases the engagement between the engaging projection 26 and the discharge container 2 with the contact part 33.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to a replaceable exterior part for a dispensing container and a dispensing product including the exterior part. [Background technology]

[0002] Patent Document 1 discloses a push-down head type spray container consisting of a container body (aerosol container) and a cylindrical mounting member attached to the container body. The cylindrical mounting member consists of a cylindrical base body with legs that engage with engaging ribs on the container body, and a cylindrical operating body that is screwed onto the cylindrical base to push the legs into the engaging ribs, thereby engaging the legs with the engaging ribs. The cylindrical mounting member can be removed from the container body by rotating the cylindrical operating body in the screw-removal direction.

[0003] Patent Document 2 discloses a shoulder cover unit structure that is composed of an annular base that is detachable from the mounting cup of an aerosol product and a shoulder cover unit that is rotatably attached to the annular base, and that is detached as a unit and reused when the container body is disposed of after the contents are exhausted. Specifically, the annular base has a protruding part that fits into an annular undercut provided on the inner circumference of the mounting cup, and the shoulder cover has a vertical column part that prevents the protruding part from moving inward (i.e., in the direction to release the fit), and the position of the vertical column part is shifted by rotating the shoulder cover, allowing the protruding part to move inward, and the entire unit can be removed. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2008-247470 A [Patent Document 2] JP 2019-11094 A Summary of the Invention [Problem to be solved by the invention]

[0005] In the push-down head type ejection container of Patent Document 1, when the cylindrical operation body is unscrewed from the cylindrical base, the cylindrical base tends to rotate together (co-rotate), and separation is not reliable.

[0006] The shoulder cover unit structure of Patent Document 2 is attached to the container body by fitting into an annular undercut provided on the inner circumference of the mounting cup. However, since the inner circumference of the mounting cup is formed so that it can be expanded radially outward by, for example, eight-part crimp claws, it is not a perfect circle, and removal of the unit is not stable, with the ease of removal varying depending on the fitting location.

[0007] An object of the present invention is to provide an exterior part that can be easily and reliably removed. [Means for solving the problem]

[0008] The exterior product of the present invention comprises a cover member 20 attached to a discharge container 2, and an operating member 30 attached to the cover member 20 so as to be rotatable, the cover member 20 comprising an elastic oscillating portion 25 and an engaging protrusion 26 provided on the elastic oscillating portion 25 and engaging with the discharge container 2 from the outer periphery, the operating member 30 comprising a contact portion 33 which causes the elastic oscillating portion 25 to oscillate by a rotational operation, the elastic oscillating portion 25 does not oscillate or oscillates within a range which maintains the engaged state when the engaging protrusion 26 is engaged with the discharge container 2, and when the operating member 30 is rotated, the contact portion 33 oscillates in a direction which releases the engagement between the engaging protrusion 26 and the discharge container 2.

[0009] In the exterior component, it is preferable that the operating member 30 includes a support portion 34 that restricts the swing of the elastic swing portion 25 that is not caused by the abutment portion 33 .

[0010] Moreover, it is preferable that the support portion 34 includes an inner support portion 34a and an outer support portion 34b, and the elastic swing portion 25 is positioned between the inner support portion 34a and the outer support portion 34b to restrict the swinging motion.

[0011] Moreover, it is preferable that the cover member 20 is provided with a retraction portion 21c for avoiding contact with the elastic swing portion 25 swung by the contact portion 33.

[0012] The discharge product of the present invention is characterized by comprising a discharge container 2 and the exterior product 10 described above. Effect of the Invention

[0013] In the exterior product of the present invention, the engaging projection of the cover member is engaged with the outer periphery of the discharge container, which is easy to form with high precision, so that the exterior product can be reliably removed from the discharge container. Also, the exterior product can be easily removed by simply rotating the operating member. Furthermore, since the elastic swinging part is largely swung when the engagement between the engaging projection and the discharge container is released, deterioration of the elastic swinging part can be suppressed compared to when the elastic swinging part is largely swung when in an engaged state, and this is suitable for reusing the exterior product.

[0014] Furthermore, if the operating member is provided with a support portion that restricts the oscillation of the elastic oscillating portion not caused by the abutment portion, the engaged state can be stably maintained.

[0015] When the support portion comprises an inner support portion and an outer support portion, and the oscillation is regulated by positioning the elastic oscillating portion between the inner support portion and the outer support portion, the engagement state can be maintained more stably.

[0016] If the cover member is provided with a retraction portion to avoid contact with the elastic oscillating portion oscillated by the abutment portion, the elastic oscillating portion can be oscillated widely, thereby preventing problems such as the engagement protrusion hitting the outer peripheral edge of the mounting cup and being scraped off when the outer casing is removed from the discharge container. [Brief description of the drawings]

[0017] [Figure 1] FIG. 2 is a side view of a discharge product according to one embodiment of the present invention. [Diagram 2] FIG. 2 is a partial vertical cross-sectional view of the discharge product. [Diagram 3] 3A is a perspective view of the operation member as viewed from below, FIG. 3B is a view of the cover member as viewed from above, and FIG. 3C is a perspective view of the cover member as viewed from below. [Figure 4] 4A to 4C are horizontal cross-sectional views showing the process of removing the outer casing from the discharge container, and FIGS. 4D to 4F are partially cutaway perspective views showing the process of removing the outer casing from the discharge container. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] Next, a discharge product 1 according to one embodiment of the present invention will be described in detail with reference to the drawings. As shown in Fig. 1 to Fig. 4, the discharge product 1 includes a discharge container 2 and an exterior product 10 attached to the discharge container 2 in a replaceable manner.

[0019] As shown in FIG. 2, the discharge container 2 is a so-called aerosol can, which includes a container body 3 and an aerosol valve 4.

[0020] The container body 3 is made of a metal such as tinplate or aluminum, and includes a bottom 3a (see FIG. 1), a substantially cylindrical body 3b rising from the outer circumferential edge of the bottom 3a, and a shoulder 3c extending upward from the upper end of the body 3b while gradually reducing in diameter. The upper end of the shoulder 3c is open, and a bead 3d (see FIG. 2) is provided so as to border the opening. The outer shape of the bead 3d is circular in plan view.

[0021] The aerosol valve 4 comprises a cylindrical stem 4a with a bottom having a stem hole on the side, a housing that accommodates the stem 4a so that it can move up and down, an elastic body (spring) that constantly urges the stem 4a upward, a stem rubber that closes the stem hole before the stem 4a is pushed down or tilted and that deforms to open the stem hole when the stem 4a is pushed down or tilted, and a mounting cup 4b that fixes the housing to the container body 3.

[0022] The aerosol valve 4 is fixed to the container body 3 by placing the outer peripheral edge 4b1 of the mounting cup 4b over the bead portion 3d of the container body 3 and crimping it. During crimping, the crimp claws are spread radially outward to push the inner peripheral wall of the mounting cup 4b radially outward, so that the planar shape of the inner peripheral wall becomes approximately polygonal, but the outer peripheral edge 4b1 of the mounting cup 4b maintains a circular shape in plan view. The outer peripheral edge 4b1 of the mounting cup 4b and the inner peripheral wall 23 of the cover member 20 of the exterior part 10, which will be described later, are located concentrically (axially) in plan view.

[0023] The dispensing container 2 having the above-mentioned configuration is filled with the concentrate and a propellant for dispensing the concentrate as the contents.

[0024] The outer casing 10 includes a cover member 20 attached to the discharge container 2, an operating member 30 rotatably attached to the cover member 20 for attaching and detaching the outer casing 10, and a push button 40 for operating the aerosol valve 4 of the discharge container 2 to discharge.

[0025] 3B, the cover member 20 includes an outer peripheral wall 21, a rising wall 22 provided at the upper end of the outer peripheral wall 21, an inner peripheral wall 23 located inside the rising wall 22, and a connecting portion 24 connecting the rising wall 22 and the inner peripheral wall 23. The cover member 20 also includes an elastic swinging portion 25 that returns to its original position before swinging when swung, an engaging protrusion 26 (see FIG. 3C) provided on the elastic swinging portion 25 and engaging with the discharge container 2 from the outer peripheral side, and a retracting portion 21c for avoiding contact with the swung elastic swinging portion 25.

[0026] The outer peripheral wall 21 forms the outer shape of the cover member 20 and is substantially cylindrical, and two marks 21a, 21b serving as guides for rotation operation are provided on the outer peripheral surface at an interval in the rotation direction of the operating member 30. When the position of a needle 31a (described later) of the operating member 30 points to the mark 21a on the front side, it indicates that the outer packaging 10 is fixed to the discharge container 2. When it points to the mark 21b on the rear side, it indicates that the outer packaging 10 is in a state where it can be attached to and detached from the discharge container 2 (see FIGS. 4D and F).

[0027] The rising wall 22 has a shape in which a cylinder is partially cut out in three places. In other words, it is composed of three arcs. A connecting portion 24 extends inward from each end of the arcs, and connects to the substantially cylindrical inner peripheral wall 23 to support the inner peripheral wall 23. This inner peripheral wall 23 functions as a base for mounting the operating member 30 to the cover member 20 so as to be rotatable.

[0028] The elastic swinging part 25 is located in the cut-out part of the rising wall 22. The elastic swinging part 25 includes a substantially plate-shaped main body part 25a, an elastic rotating shaft 25b connecting both ends of the main body part 25a to the rising wall 22, and an abutted part 25c that abuts against an abutting part 33 (described later) of the operating member 30. The main body part 25a almost fills the cut-out part of the rising wall 22. A convex part 25d that abuts against an outer support part 34b (described later) of the cover member 20 is provided on the outer surface of the main body part 25a. The abutted part 25c is rod-shaped and extends upward from the upper part of the rising wall 22. The horizontal cross section of the abutted part 25c is substantially elliptical. The elastic rotating shaft 25b is located near the upper end of the main body part 25a. The elastically oscillating portion 25 elastically oscillates about the elastic rotation shaft 25b when the abutted portion 25c is tilted. Therefore, it can also be said that the elastically oscillating portion 25 elastically rotates. The elastic rotation occurs when the elastic rotation shaft 25b is twisted around its axis.

[0029] The elasticity of the elastic oscillating portion 25, which tends to return to its original position before the oscillation when oscillated, is specific to the material of the cover member 20, particularly the elastic rotating shaft 25b. The cover member 20 is made of synthetic resin, particularly thermoplastic resin. Polyolefins such as polyethylene and polypropylene, polyacetal, etc. are preferable. However, the elasticity may not be specific to the material, but may be elasticity due to the shape, such as a spring. The engaging projection 26 is provided on the inner surface side of the main body portion 25a and near the lower end. The retracting portion 21c is formed by providing a recess in a portion located on the inner surface side of the outer circumferential wall 21 and outside the main body portion 25a.

[0030] As shown in Figures 1, 2, and 3A, the operating member 30 includes a substantially dome-shaped base 31, legs 32 for attaching the base 31 to the inner wall 23 of the cover member 20, a needle 31a provided on the outer peripheral surface of the base 31, a contact portion 33 provided on the inner peripheral surface of the base 31, and a support portion 34 that regulates the oscillation of the elastic oscillating portion 25 not caused by the abutment portion 33.

[0031] The base 31 has a hole 31b on the top surface for passing the push button 40. A guide tube portion 35 extends downward from the edge of the hole 31b. The leg portion 32 also extends downward from the edge of the hole 31b. A barb 32a is provided at the lower end of the leg portion 32 for hooking onto the lower end of the inner peripheral wall 23. By hooking the barb 32a onto the lower end of the inner peripheral wall 23, the operating member 30 is attached to the cover member 20 so as to be rotatable. The contact portions 33 are provided in accordance with the number of the elastic swinging portions 25. In the figure, three are provided for each. The inner peripheral side of the contact portion 33 is an inclined surface 33a inclined in the circumferential direction. This inclined surface 33a is intended to gradually tilt the contacted portion 25c inward (diametrically inward) according to the amount of rotation in the rotation operation of the operating member 30.

[0032] The support portion 34 includes an inner support portion 34a extending downward from near the edge of the hole 31b, and an outer support portion 34b provided on the inner circumferential surface of the base portion 31. When the operating member 30 is attached to the cover member 20, the elastically oscillating portion 25 is located between the inner support portion 34a and the outer support portion 34b in a plan view. Specifically, the inner support portion 34a is located inside the abutted portion 25c, and the outer support portion 34b is located outside the main body portion 25a. The inner support portion 34a and the outer support portion 34b are provided at the same angle in a plan view. In other words, the inner support portion 34a is located on a line connecting the center of the base portion 31 and the outer support portion 34b in a plan view. On the other hand, the support portion 34 and the abutting portion 33 are not provided at the same angle in a plan view, and are shifted in the circumferential direction (rotation operation direction). In other words, in a plan view, the contact portion 33 is not positioned on a line connecting the center of the base portion 31 and the outer support portion 34b.

[0033] As shown in Fig. 2, the push button 40 has a shaft portion 41 and a nozzle portion 42. The outer diameter of the shaft portion 41 is approximately equal to the inner diameter of the guide tube portion 35 of the operating member 30, and the up and down movement of the push button 40 is guided by the guide tube portion 35. A protrusion 41a is provided on the outer circumferential surface of the shaft portion 41 to hook onto the lower end of the guide tube portion 35 and prevent the push button 40 from coming off the operating member 30. The lower end of the shaft portion 41 of this push button 40 is attached to the stem 4a. When the push button 40 is pressed downward, the aerosol valve 4 opens and the contents are discharged from the tip of the nozzle portion 42.

[0034] Next, the attachment and detachment of the exterior part 10 will be described. As shown in FIG. 4A and FIG. 4D, when the needle 31a of the operating member 30 points to the mark 21a on the front side of the cover member 20, the engagement protrusion 26 engages with the outer peripheral edge 4b1 of the mounting cup 4b. In this fixed state, the elastic swinging part 25 does not swing or swings within a range in which the engaged state is maintained. Therefore, no or small load is applied to the elastic rotating shaft 25b, and deterioration of the elastic swinging part 25, particularly creep of the elastic rotating shaft 25b, can be suppressed. Also, in the fixed state, the inner support part 34a is located (preferably abutting) inside the abutted part 25c, and the outer support part 34b is located (preferably abutting) outside the convex part 25d of the main body part 25a, and the swing of the elastic swinging part 25 in the direction in which the engagement protrusion 26 is removed from the discharge container 2 is restricted. Therefore, the engagement state of the engagement protrusion 26 is stably maintained.

[0035] To remove the exterior product 10 from the discharge container 2, the operating member 30 is rotated. The rotating operation is performed by rotating the operating member 30 around the central axis N of the discharge product 1 (the central axis of the discharge container 2, the central axis of the cover member 20). In the figure, it is rotated counterclockwise. Note that even if you try to rotate it clockwise, the legs 32 come into contact with the connecting part 24 and cannot be rotated. In short, the connecting part 24 functions as a restricting means for restricting excessive rotation of the operating member 30. As shown in Figures 4B and 4E, when the operating member 30 is rotated to a certain extent, the support parts 34a and 34b and the abutted part 25c are misaligned, and the rocking restriction effect by the support parts 34a and 34b cannot be obtained. Meanwhile, the abutting part 33 abuts against the outer side of the abutted part 25c, and the abutted part 25c begins to fall inward. When the contacted portion 25c falls inward, the entire elastic swinging portion 25 swings like a seesaw with the elastic rotation shaft 25b as the center of rotation, and the main body portion 25a and the engaging protrusion 26 move outward (in the radially outward direction). Since the retracting portion 21c is provided, the outward movement of the main body portion 25a is not hindered by contact with the inner peripheral surface of the outer peripheral wall 21. Then, as shown in FIG. 4C and FIG. 4F, when the needle 31a of the operating member 30 is rotated until it points to the mark 21b on the rear side of the cover member 20, the engaging protrusion 26 is released from the discharge container 2. After the engaging protrusion 26 is released, even if it is attempted to be rotated further counterclockwise, the leg portion 32 comes into contact with the connecting portion 24 and cannot be rotated. When the engaging protrusion 26 is disengaged from the discharge container 2, the outer packaging part 10 can be removed from the discharge container 2 by lifting the outer packaging part 10 up.

[0036] In this manner, the exterior part 10 having the above configuration can be switched between a fixed state to the discharge container 2 and a detachable state from the discharge container 2 simply by rotating the operating member 30. Therefore, the exterior part 10 and the discharge container 2 can be separately disposed of, or the exterior part 10 can be removed from a used discharge container 2 and attached to a new discharge container 2, making it possible to reuse the exterior part 10. To attach the exterior part 10 to a new discharge container 2, the reverse operation of the removal is performed. That is, the exterior part 10 in the detachable state is placed over the new discharge container 2, and in this state, the operating member 30 is rotated in the opposite direction to the removal direction. When the contact part 33 is no longer in contact with the contacted part 25c due to the reverse rotation operation, the elastic swinging part 25 returns to its original position before being swung, and as a result, the engagement protrusion 26 engages with the discharge container 2, completing the attachment of the exterior part 10 to the new discharge container 2.

[0037] Although the embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made within the scope of the present invention. For example, the inclined surface 33a may be provided on both the contact portion 33 and the contacted portion 25c. The marks 21a and 21b may be provided on the operating member 30, and the needle 31a may be provided on the cover member 20. The number of the elastic swinging portion 25, the contacted portion 25c, and the contact portion 33 is not limited to three, and may be two or more. The needle 31a may be fixed when aligned with the rear mark 21b, and released when aligned with the front mark 21a. The location where the engaging protrusion 26 engages is not limited to the mounting cup 4b, and can be appropriately changed to the bead portion 3d of the container body 3, etc., as long as it is an engageable recess. The material of the container body 3 is not limited to metal, and can be various materials such as synthetic resin. [Explanation of symbols]

[0038] 1 Discharge product 2 Discharge container 3 Container body 3a bottom 3b Torso 3c Shoulder 3d Bead section 4 Aerosol Valve 4a stem 4b Mounting cup 4b1 Outer edge 10 Exterior Parts 20 Cover member 21 Outer wall 21a Front mark 21b Rear mark 21c Evacuation section 22 Rising Wall 23 Inner wall 24 Connecting part 25 Elastic swing part 25a Main body 25b Elastic rotating shaft 25c Abutted part 25d Convex 26 Engagement protrusion 30 Operation member 31 Base 31a needle 31b hole 32 Legs 32a Return 33 Contact part 33a Slope 34 Support part 34a Internal support part 34b Outer support part 35 Guide tube 40 Push Button 41 Shaft 41a Protrusion 42 Nozzle section N center axis

Claims

1. A cover member attached to the discharge container; an operating member attached to the cover member so as to be rotatable; The cover member includes an elastic swinging portion and an engagement protrusion that is provided on the elastic swinging portion and engages with the discharge container from an outer circumferential side, The operating member includes a contact portion that causes the elastically oscillating portion to oscillate when rotated, The elastic oscillating part does not oscillate when the engaging protrusion is engaged with the discharge container, or oscillates within a range that maintains the engaged state, and when the operating member is rotated, the abutment part oscillates in a direction that releases the engagement between the engaging protrusion and the discharge container.

2. 2. The exterior part according to claim 1, wherein the operating member is provided with a support portion that restricts the oscillation of the elastic oscillation portion not caused by the abutment portion.

3. The support portion includes an inner support portion and an outer support portion; 3. The exterior part according to claim 2, wherein the oscillation is restricted by a resilient oscillation portion being positioned between the inner support portion and the outer support portion.

4. 2. The exterior product according to claim 1, wherein the cover member is provided with a retreat portion for avoiding contact with the elastically oscillating portion oscillated by the abutment portion.

5. A discharge product comprising a discharge container and the exterior product according to claim 1.

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