JP7072987B2 - Discharge container - Google Patents

Description

The present invention relates to a discharge container provided with a container body for accommodating the contents and a discharge cap attached to the mouth of the container body.

Conventionally, as a discharge container for storing cosmetics such as lotion, shampoo, conditioner or liquid soap, food seasonings, chemicals, etc. as contents, the container body forming the storage space for the contents and the contents are discharged. A discharge container having a discharge port to be provided and a discharge cap attached to the port portion is known.

Further, in such a discharge container, for the purpose of obtaining the effect of preventing unauthorized opening, a stopper type in which the discharge cap is attached to the mouth portion by a stopper instead of a screw connection to the mouth portion is known. (See Patent Document 1).

Japanese Unexamined Patent Publication No. 2018-2238

By the way, in recent years, from the viewpoint of resource reuse and environmental protection, it has been required to separate and dispose of waste by material, and it is hoped that the container body and the discharge cap will be disposed of separately. It is rare.

However, it is difficult to remove the plug-type discharge cap as described above because it is firmly engaged and held with the mouth of the container body.

Therefore, an object of the present invention is to provide a discharge container provided with a plug-type discharge cap, in which the discharge cap can be easily removed from the mouth of the container body.

The present invention has been made to solve the above problems, and the discharge container of the present invention has a cylindrical mouth portion and a body portion connected to the mouth portion, and forms a storage space for the contents. With the main body
It has a discharge port from which the contents are discharged, and is provided with a discharge cap attached to the port portion by tapping.
The container body has a slidable portion that protrudes from the outer peripheral surface of the mouth portion, and the discharge cap has a sliding portion with respect to the slidable portion when the discharge cap attached to the mouth portion is rotated. It has a sliding portion that separates the discharge cap from the mouth portion in the axial direction by sliding.
The sliding portion or the slided portion has an inclined surface extending diagonally with respect to a plane perpendicular to the axis of the discharge cap .
The inclined surface is provided on both the left and right sides of the sliding portion or the slided portion, and the inclination angle of one of the inclined surfaces is larger than the inclination angle of the other inclined surface. It is a thing.
The inclined surface is preferably a flat surface or a curved surface extending in a straight line.

In the discharge container of the present invention, it is preferable that the sliding portion is provided at the lower end portion of the outer peripheral wall of the discharge cap.

Further, in the discharge container of the present invention, it is preferable that the sliding portion is formed in a notch shape that opens at the lower end surface of the outer peripheral wall of the discharge cap.

Further, the discharge container of the present invention preferably has the inclined surface.

Further, in the discharge container of the present invention, it is preferable that the inclined surfaces are provided on both the left and right sides of the sliding portion.

Further, in the discharge container of the present invention, the slidable portion faces the inclined surface of the sliding portion with the discharge cap attached to the mouth portion, and extends parallel to the inclined surface. It is preferable to have an existing slidable inclined surface.

Further, in the discharge container of the present invention, the container body is positioned below the engaging portion and the engaging portion for engaging and holding the discharge cap provided on the outer peripheral surface of the mouth portion. Has a neck ring and
The slidable portion is preferably located between the engaging portion and the neck ring in the axial direction of the mouth portion.

Further, in the discharge container of the present invention, it is preferable that the plurality of sliding portions are evenly arranged in the circumferential direction of the mouth portion.

According to the present invention, in a discharge container provided with a plug-type discharge cap, it is possible to provide a discharge container in which the discharge cap can be easily removed from the mouth of the container body.

It is a side view which shows a part of the discharge container which is one Embodiment of this invention. It is sectional drawing of the discharge container of FIG. It is a figure which shows the modification of the discharge container of this invention. It is a figure which shows the modification of the discharge container of this invention. It is a figure which shows the modification of the discharge container of this invention. It is a figure which shows the modification of the discharge container of this invention. It is a figure which shows the modification of the discharge container of this invention. It is a figure which shows the modification of the discharge container of this invention. It is a figure which shows the modification of the discharge container of this invention. It is a figure which shows the modification of the discharge container of this invention.

Hereinafter, the present invention will be described in more detail with reference to the drawings. In the present specification, "upper" is the side (upper side in FIG. 1) where the discharge cap is located with respect to the container body when the discharge container is placed on a horizontal plane in an upright posture, and is "lower". Is the opposite side (lower side of FIG. 1).

As shown in FIGS. 1 and 2, the discharge container 1 according to the embodiment of the present invention is attached to the container body 10 forming the content storage space S and the mouth portion 11 of the container body 10 by tapping. The discharge cap 20 is provided. Further, the discharge container 1 of this example includes an inner plug 30, a valve body 40, and a lid body 50, but these are not essential configurations. The type of the content is not limited, and may be, for example, a liquid or a solid such as a granular material. Further, the axis O shown in FIGS. 1 and 2 is the central axis of the discharge container 1 and coincides with the central axis of the container body 10 and the discharge cap 20. In addition, the plugging means that the engaging portion (second engaging portion 22a in this example) provided on the discharge cap 20 side is formed by pushing the discharge cap 20 into the mouth portion 11 in the axial direction. The discharge cap 20 is engaged and held by the mouth portion 11 of the container body 10 by overcoming the engaging portion (first engaging portion 11a in this example) provided on the side and engaging from below (undercut engagement). Means that.

The container body 10 has a cylindrical mouth portion 11 and has a bottle shape in which a body portion and a bottom portion are provided below the mouth portion 11. The mouth portion 11 of this example has a cylindrical shape. The container body 10 can be configured to have, for example, a substantially cylindrical body portion and a substantially disk-shaped bottom portion that closes the lower end of the body portion, but if it forms a storage space S, the body body 10 can be configured. The shape of the portion and the bottom is not particularly limited.

Here, the container body 10 of this example has a double structure including an outer layer body 10a and an inner layer body 10b housed inside the outer layer body 10a. The container body 10 can be formed by extrusion blow molding in which a laminated parison having a layer forming the outer layer body 10a and a layer forming the inner layer body 10b is blow-molded using a mold. In this example, the container body 10 is a laminated peeling container (derami container) in which the inner layer body 10b is laminated and arranged on the inner surface of the outer layer body 10a so as to be peelable. It may be a laminated peeling container or a double container manufactured by biaxially stretching blow molding a built-in type preform in which the above is incorporated inside the outer layer body 10a, or it may be composed of a single member instead of a double structure. It may be a container to be used. Alternatively, the container body 10 may be a container having a laminated structure having a plurality of layers configured so as not to be peeled off.

The inner layer body 10b is formed in a thin bag shape that can be reduced in volume and deformed by, for example, a synthetic resin material, and is laminated and arranged on the inner surface of the outer layer body 10a so as to be peelable. The inner layer body 10b wraps around to the opening end of the mouth portion 11 of the container body 10 and opens at the opening end, and the inside thereof is a storage space S for the contents.

The outer layer 10a is formed of, for example, a synthetic resin material into a bottle shape having a predetermined rigidity, and constitutes the outer shell of the container body 10. The portion of the outer layer body 10a corresponding to the body portion can be pressed (squeeze) and has resilience to the original shape. Further, the portion of the outer layer body 10a corresponding to the mouth portion 11 is provided with an outside air introduction hole 12 that penetrates the outer layer body 10a in the radial direction and communicates between the inner layer body 10b and the outer layer body 10a. In this example, as shown in FIG. 2, two outside air introduction holes 12 are provided at positions facing each other across the axis O, but at least one outside air introduction hole 12 may be provided.

Further, on the outer peripheral surface of the mouth portion 11, above the outside air introduction hole 12, a first straight surface 15a in which the contour line in a vertical cross-sectional view passing through the axis O is a straight line substantially parallel to the axis O, and the first straight surface 15a. A first step portion 15b (step portion) that is continuous above the straight surface 15a and is inclined upward in a tapered shape and is connected above the first step portion 15b, and the contour line in the vertical cross-sectional view is the axis O. A second straight surface 15c, which is a substantially parallel straight line, is provided. By having the first straight surface 15a, the inner peripheral surface of the discharge cap 20 can be guided by the first straight surface 15a at the time of tapping, so that the discharge cap 20 is attached to the mouth portion 11 in a stable posture. be able to. Further, since the region of the second straight surface 15c provided above the first straight surface 15a via the first step portion 15b has a smaller diameter than the region of the first straight surface 15a, the opening from below the discharge cap 20. It becomes easy to insert the portion 11. Further, by making the first step portion 15b an inclined surface, the discharge cap 20 can be attached to the mouth portion 11 more smoothly. In the present embodiment, the second step portion 15d is provided below the first straight surface 15a, and the diameter below the second step portion 15d is slightly larger than that of the first straight surface 15a. There is. Further, a third straight surface 15e is provided below the second step portion 15d so that the contour line in the vertical cross-sectional view is a straight line substantially parallel to the axis O.

A first engaging portion 11a (engaging portion) for engaging and holding the discharge cap 20 is integrally provided on the outer peripheral surface of the outer layer body 10a constituting the mouth portion 11. The first engaging portion 11a is provided below the second step portion 15d. The first engaging portion 11a is formed in an intermittent annular shape provided so as to avoid the outside air introduction hole 12 in the circumferential direction of the mouth portion 11. Further, the first engaging portion 11a is provided at a position partially overlapping the outside air introduction hole 12 in the axial direction (vertical direction in this example) along the axis O of the mouth portion 11. In this way, the height of the mouth portion 11 can be kept low by arranging the first engaging portion 11a and the outside air introduction hole 12 so as to be offset in the circumferential direction and providing them at positions overlapping in the vertical direction.

Further, below the first engaging portion 11a, a first sealing portion 11b, which is an annular convex portion protruding outward in the radial direction, is integrally provided. The first seal portion 11b is continuously provided on the third straight surface 15e, and the outer diameter of the first seal portion 11b is larger than that of the third straight surface 15e. A slidable portion 14, which will be described later, is projected from the first seal portion 11b. A neck ring 13 projecting outward in the radial direction is provided on the outer peripheral surface of the outer layer body 10a constituting the mouth portion 11. The neck ring 13 is provided so as to be separated downward from the first sealed portion 11b and the slided portion 14. The lower surface 13a of the neck ring 13 constitutes a plug supporting surface that is supported by a support tool when the discharge cap 20 is attached to the mouth portion 11 by tapping. The lower surface 13a of the neck ring 13 constituting the plug support surface is preferably perpendicular to the axis O and flat, which makes it possible to withstand a larger stress.

The container body 10 is provided with a plurality of adhesive layers (adhesive bands) extending in the vertical direction and partially adhering the inner layer body 10b to the outer layer body 10a between the outer layer body 10a and the inner layer body 10b. It can also be configured as a new type. In this example, the pair of adhesive layers are provided at positions displaced by 90 ° in the circumferential direction from the outside air introduction hole 12. Further, the container body 10 may be configured such that a barrier layer having a barrier property against oxygen or water vapor is laminated and arranged, or a structure in which the barrier property is enhanced by various coatings.

The discharge cap 20 is formed of, for example, a synthetic resin material, and is attached to the mouth portion 11 of the container body 10 by tapping. The discharge cap 20 has a top wall portion 21 located above the opening of the mouth portion 11 and a cylindrical outer peripheral wall 22 connected to the top wall portion 21 and located radially outside the mouth portion 11. It is formed in a tubular shape. A second engaging portion 22a is provided on the inner peripheral surface of the outer peripheral wall 22, and the second engaging portion 22a is undercut engaged with the first engaging portion 11a provided on the outer peripheral surface of the mouth portion 11. By doing so, the discharge cap 20 is engaged with and held (fixed) to the mouth portion 11 of the container body 10. The second engaging portion 22a may be an annular convex portion or a concave portion, but may be formed as an intermittent annular portion partially provided in the circumferential direction.

The top wall portion 21 is integrally provided with a discharge cylinder 21a projecting upward from the top wall portion 21, and the inside thereof is a discharge port 23 for discharging the contents. Further, the top wall portion 21 is provided with an intake hole 24 for taking in outside air. An air flow path from the intake hole 24 to the outside air introduction hole 12 is formed between the mouth portion 11 and the outer peripheral wall 22. For this air flow path, for example, a groove may be provided on at least one of the outer peripheral surface of the mouth portion 11 and the inner peripheral surface of the outer peripheral wall 22, or a protrusion may be provided on at least one of the outer peripheral surfaces to form a gap between them. It can be formed by such things. At the lower end of the outer peripheral wall 22, a second seal portion 22b is formed which airtightly contacts the outer surface of the first seal portion 11b over the entire circumference to seal the air flow path. In the present embodiment, the second seal portion 22b is formed by an annular protrusion slightly protruding from the inner peripheral surface of the outer peripheral wall 22, but may not protrude from the inner peripheral surface of the outer peripheral wall 22.

The container body 10 has a slidable portion 14 projecting radially outward from the outer peripheral surface of the outer layer body 10a constituting the mouth portion 11. The slidable portion 14 is located between the first engaging portion 11a and the neck ring 13 in the axial direction of the mouth portion 11.

Further, the discharge cap 20 is axially separated from the mouth portion 11 by sliding with respect to the slided portion 14 when the discharge cap 20 mounted on the mouth portion 11 is rotated. A sliding portion 25 is provided. That is, the slidable portion 14 and the sliding portion 25 form a cam mechanism that converts the rotational movement of the discharge cap 20 with respect to the mouth portion 11 of the container body 10 into an axial linear motion along the axis O.

As shown in FIG. 1, the slidable portion 14 of this example has a trapezoidal shape in a front view (side view of the discharge container 1) when the slidable portion 14 is viewed from the outside in the radial direction. It has a slidable surface 14a (sliding inclined surface) of 1 and a second slidable surface 14b (sliding inclined surface). The slidable portion 14 of this example has an isosceles trapezoidal shape, and the first slidable surface 14a and the second slidable surface 14b have a symmetrical shape, but the shape is limited to this. not.

The first slidable surface 14a and the second slidable surface 14b located on the left and right sides of the slidable portion 14 each form an upward inclined surface extending diagonally with respect to a plane perpendicular to the axis O. are doing. Further, the width of the slidable portion 14 of this example gradually increases from the upper side to the lower side. That is, the slidable portion 14 of this example has a trapezoidal shape in which the lower side is larger than the upper side.

The sliding portion 25 is provided at the lower end portion of the outer peripheral wall 22 of the discharge cap 20, but the position of the sliding portion 25 is not particularly limited, and for example, from the upper portion or the middle portion of the outer peripheral wall 22 to the lower end portion. A concave sliding portion 25 may be provided on the inner peripheral surface of the outer peripheral wall 22 so as to extend and open to the lower end surface. Further, the sliding portion 25 of this example penetrates the outer peripheral wall 22 in the radial direction at the lower end portion of the outer peripheral wall 22, but the sliding portion 25 does not penetrate in the engagement direction at the lower end portion of the outer peripheral wall 22. It may be a recess. That is, the sliding portion 25 may or may not penetrate the outer peripheral wall 22 in the radial direction. As in this example, the sliding portion 25 penetrates the outer peripheral wall 22 in the radial direction, so that the sliding portion 25 and the slided portion 14 face each other in the vertical direction and come into contact with each other. And since the sliding area becomes large, stable and reliable guidance (sliding) is possible. Specifically, when the sliding portion 25 penetrates the outer peripheral wall 22 in the radial direction, it is possible to secure a contact area with respect to the slided portion 14 corresponding to the wall thickness of the outer peripheral wall 22 at the maximum.

The sliding portion 25 of this example is formed in a notch shape that opens in the lower end surface 22c of the outer peripheral wall 22 of the discharge cap 20. Further, the sliding portion 25 of this example is formed in a trapezoidal shape corresponding to the shape of the sliding portion 14, and the first sliding surface 25a (inclined surface) and the second sliding surface are formed on both the left and right sides, respectively. It has a surface 25b (inclined surface). The first sliding surface 25a and the second sliding surface 25b have symmetrical shapes, but the shape is not limited to this.

In the mounted state of the discharge cap 20 shown in FIG. 1, the first sliding surface 14a faces the first sliding surface 25a and extends parallel to the first sliding surface 25a. .. With such a configuration, the first sliding surface 25a slides more smoothly with respect to the first sliding surface 14a, so that the removal operation by rotating the discharge cap 20 becomes easier. Similarly, in the mounted state of the discharge cap 20, the second sliding surface 14b is arranged to face the second sliding surface 25b and extends parallel to the second sliding surface 25b. ..

As shown by the alternate long and short dash line in FIG. 1, when the discharge cap 20 is rotated to one side with respect to the mouth portion 11 of the container body 10, the first sliding surface 25a with respect to the first sliding surface 14a Abuts and slides, and the discharge cap 20 moves upward. That is, as the discharge cap 20 rotates, the discharge cap 20 is axially separated from the mouth portion 11. As a result, the engagement of the second engaging portion 22a with the first engaging portion 11a is released, and the discharge cap 20 can be removed from the mouth portion 11.

As described above, in the discharge container 1 of the present embodiment, the sliding portion 14 is provided in the mouth portion 11 of the container main body 10, and the sliding portion 25 is provided in the discharge cap 20 with respect to the mouth portion 11. The discharge cap 20 is configured to be removed only by rotating the discharge cap 20.

Therefore, according to the discharge container 1 of the present embodiment, in the discharge container 1 provided with the plug-type discharge cap 20, the discharge cap 20 can be easily removed from the mouth portion 11 of the container main body 10.

When the discharge cap 20 is rotated in the direction opposite to the direction shown in FIG. 1, the second sliding surface 25b slides with respect to the second sliding surface 14b, so that the discharge cap 20 is used. Move upwards as well. As described above, in this example, regardless of the rotation direction of the discharge cap 20 with respect to the mouth portion 11, the discharge cap 20 is axially separated from the mouth portion 11 and the discharge cap 20 is removed. Can be done. Therefore, there is an advantage that it is not necessary to worry about the rotation direction when removing the discharge cap 20.

Here, in the discharge container 1 of the present embodiment, when the discharge cap 20 is attached to the mouth portion 11 of the container body 10 by tapping, the position of the sliding portion 25 is set to the position of the sliding portion 14. Need to match. In the discharge container 1 of the present embodiment, the first sliding surface 25a and the second sliding surface 25b, and the corresponding first sliding surface 14a and the second sliding surface 14b Since the guide surface serves to guide the circumferential position of the discharge cap 20 to an appropriate position when the discharge cap 20 is tapped into the mouth portion 11, the alignment is facilitated. That is, the notch-shaped sliding portion 25 preferably has a larger width toward the lower side, and the slidable portion 14 preferably has a tapered shape toward the upper side.

The sliding portion 14 may be provided at only one location in the circumferential direction of the mouth portion 11, but it is preferable that the sliding portion 14 is provided at a plurality of locations, and in particular, a plurality of sliding portions 14 are provided around the mouth portion 11. It is preferable to arrange them evenly in the direction. In this case, a plurality of sliding portions 25 are evenly arranged in the circumferential direction of the outer peripheral wall 22 of the discharge cap 20 corresponding to the sliding portions 14. With such a configuration, the force for pushing up the discharge cap 20 when the discharge cap 20 is rotated can be generated evenly in a well-balanced manner in the circumferential direction. As a result, the discharge cap 20 can be pushed up straight in the axial direction, and the discharge cap 20 can be smoothly removed. The number of sliding portions 14 and 25, and their positions can be changed as appropriate.

The inner plug 30 is formed of, for example, a synthetic resin material and is mounted inside the discharge cap 20. The inner plug 30 includes a partition wall 31 that covers the opening of the mouth portion 11, a sealing cylinder portion 32 that protrudes from the lower surface of the partition wall 31 and abuts on the inner peripheral surface of the mouth portion 11 (inner peripheral surface of the inner layer body 10b), and a partition wall. It has a support cylinder portion 33 extending upward from the outer peripheral edge portion of 31. The sealing cylinder portion 32 can be made to have its outer peripheral surface strongly in contact with the inner peripheral surface of the mouth portion 11 to improve the airtightness.

The upper end of the support cylinder portion 33 abuts on the lower surface of the top wall portion 21 and is fitted to the inner surface of the outer peripheral wall 22 at the outer peripheral portion, whereby the inner plug 30 is fixedly held inside the discharge cap 20.

The partition walls 31 are arranged below the top wall portion 21 at intervals. An outflow hole 31a for the contents penetrating the partition wall 31 is provided in the central portion of the partition wall 31. The outflow hole 31a can communicate with the discharge port 23 provided in the discharge cap 20. The contents accommodated in the accommodation space S can flow out toward the discharge port 23 through the outflow hole 31a. An annular groove 31b surrounding the outflow hole 31a is provided on the upper surface of the partition wall 31 of the inner plug 30 on the radial inside of the support cylinder portion 33. A ventilation groove 31c that vertically penetrates the partition wall 31 is formed on the outer peripheral edge of the partition wall 31, and a communication groove 33a that communicates with the ventilation groove 31c is formed on the upper end surface of the support cylinder portion 33.

The partition wall 31 is provided with a cylindrical wall 34 penetrating vertically, and a reduced diameter portion 34a whose diameter is reduced downward is formed at the lower portion of the tubular wall 34. Inside the tubular wall 34, a movable valve body 35 that can move in the axial direction of the tubular wall 34 is arranged. In the illustrated example, the mobile valve body 35 has a spherical shape, but the present invention is not limited to this, and various shapes can be adopted.

The valve body 40 is arranged between the top wall portion 21 of the discharge cap 20 and the partition wall 31 of the inner plug 30, and opens and closes the outflow hole 31a provided in the partition wall 31. Specifically, the valve body 40 allows the contents to move from the accommodation space S to the discharge port 23, and prevents the contents and the outside air from flowing into the accommodation space S from the discharge port 23. The valve body 40 has, for example, a cylindrical base 41 formed of low-density polyethylene (soft polyethylene) and a disk-shaped valve body 43 integrally connected to the inside of the base 41 via an elastic piece 42. ing. The upper end portion of the base portion 41 is fitted into the annular groove 21b provided on the lower surface of the top wall portion 21, and the lower end portion is fitted into the annular groove 31b of the partition wall 31 of the inner plug 30. The valve body 40 is fixedly held between the discharge cap 20 and the inner plug 30. In the present embodiment, the valve body 40 has the form of a so-called three-point valve in which the valve body 43 is supported by three elastic pieces 42, but the valve body 43 is supported by one hinge, so-called one-point valve. Etc., other forms of check valves can be used. Inside the base 41, a flow path of contents is formed from the outflow hole 31a provided in the partition wall 31 to the discharge port 23 provided in the top wall portion 21. Further, on the outside of the base 41, an air flow path from the intake hole 24 to the communication groove 33a and the ventilation groove 31c is formed.

The lid 50 is formed in a hump cylinder shape having substantially the same diameter as the discharge cap 20, and is rotatably connected to the outer peripheral wall 22 of the discharge cap 20 by a hinge 51 so as to cover the discharge cylinder 21a. It has become. A cylindrical sealing wall portion 52 is integrally provided on the inner surface of the lid 50, and when the lid 50 is closed, the sealing wall portion 52 fits inside the discharge cylinder 21a to form a discharge port 23. It is designed to be blocked. On the side of the lid 50 facing the hinge 51, a knob portion 53 that serves as a finger hook when opening the lid 50 is provided. The lid 50 is not limited to the configuration of being integrally connected to the discharge cap 20 by the hinge 51, and may be configured to be formed separately from the discharge cap 20 and attached to the discharge cap 20 by screwing, undercut, or the like.

When discharging the contents from the discharge container 1, the body is squeezed while the container body 10 is tilted (inverted) so that the discharge cylinder 21a faces downward with the lid 50 open. , The inner layer 10b is pressed and the contents can be pushed out toward the outflow hole 31a. As a result, the valve main body 43 can be opened, the contents in the accommodation space S can be discharged from the outflow hole 31a toward the discharge port 23, and the contents can be discharged from the discharge port 23 toward the outside.

On the other hand, when the squeeze of the body portion is released after the contents are discharged, the outflow hole 31a is closed by the valve body 43, and the negative pressure generated when the outer layer body 10a is restored to the original shape causes air from the intake hole 24. (Outside air) is introduced. The air introduced from the intake hole 24 is an inner layer body through an air flow path composed of a communication groove 33a, a ventilation groove 31c, a gap formed between the mouth portion 11 and the outer peripheral wall 22, and an outside air introduction hole 12. It flows into the internal space between the 10b and the outer layer 10a. By introducing outside air between the inner layer body 10b and the outer layer body 10a in this way, the outer layer body 10a can be restored to the original shape while the inner layer body 10b is reduced in volume and deformed. Therefore, it is possible to suppress the introduction of outside air into the accommodation space S, reduce the contact of the contents contained in the container body 10 with the air, and suppress the deterioration and deterioration of the contents. Further, when the discharge container 1 is tilted for discharging the contents, the moving valve body 35 moves to the valve body 43 side, finishes discharging the contents, and returns the discharge container 1 from the tilted posture. When returning to the upright posture, the moving valve body 35 moves to the reduced diameter portion 34a side. Along with this, the contents in the discharge cylinder 21a can be drawn toward the tubular wall 34 side through the gap between the elastic piece 42 and the valve body 43. Such a so-called suckback function can prevent dripping from the discharge cylinder 21a.

Hereinafter, deformation examples of the slidable portion 14 and the sliding portion 25 will be described. The parts having the same basic functions as those of the above-described embodiment are designated by the same reference numerals in the drawings, and the description thereof will be omitted.

The slidable portion 14 may be, for example, a semicircle whose upper side is arcuate as shown in FIG. 3, a circle shown in FIG. 4, a quadrangle shown in FIG. 5, or the like. When the sliding portion 14 is rectangular as shown in FIG. 5, the sliding portion 25 needs to have at least one of the first sliding surface 25a and the second sliding surface 25b. be. That is, in order to form a cam mechanism that converts the rotational movement of the discharge cap 20 with respect to the mouth portion 11 into a linear movement in the axial direction along the axis O, at least one of the sliding portion 14 and the sliding portion 25 is formed. However, it is necessary to have a portion that is inclined diagonally with respect to a plane perpendicular to the axis O. The portion inclined diagonally with respect to the plane perpendicular to the axis O is not limited to a flat surface extending linearly, and the first slidable surface 14a of the slidable portion 14 shown in FIGS. 3 and 4 is not limited to the flat surface. And may be a curved surface such as the second sliding surface 14b.

Further, as shown in FIG. 6, the sliding portion 25 may be formed in a quadrangular notch shape in a front view (side view of the discharge container 1). That is, the sliding portion 25 shown in FIG. 6 has side surfaces 25c parallel to the axis O on both the left and right sides. In this case, the slidable portion 14 needs to have at least one of a first slidable surface 14a and a second slidable surface 14b that are inclined obliquely with respect to a plane perpendicular to the axis O. There is. In the example shown in FIG. 6, the slidable portion 14 has a triangular shape when viewed from the front, and the first slidable surface 14a and the second slidable surface 14a and the second sliding portion 14 are inclined diagonally with respect to the plane perpendicular to the axis O on both the left and right sides. It has a sliding surface 14b. When the slidable portion 14 has a triangular shape, it is not limited to the isosceles right triangle shown in FIG. 6, and the lengths of the left and right sides may be different.

In the example shown in FIG. 7, a stopper portion for preventing rotation is provided on one of the left and right sides of the sliding portion 14 and the sliding portion 25. That is, both the side surface 14c of the sliding portion 14 and the side surface 25c of the sliding portion 25 extend so as to be parallel to the axis O, and when the side surface 14c and the side surface 25c are rotated in the abutting direction, they are rotated. The side surface 14c and the side surface 25c act as stoppers to prevent rotation. On the other hand, when the side surface 14c and the side surface 25c are rotated in a direction in which they are separated from each other, the first sliding surface 25a slides with respect to the first sliding surface 14a as in the embodiment of FIG. The discharge cap 20 can be removed by moving the 20 upward. By forming the stopper portions on one of the left and right sides of the sliding portion 14 and the sliding portion 25 in this way, the rotation direction in which the discharge cap 20 can be removed can be limited to only one direction.

Further, as shown in FIG. 8, the slidable portion 14 and the sliding portion 25 are asymmetrical in shape, and the amount of rotation and the force required for rotation when the discharge cap 20 is removed are measured depending on the rotation direction of the discharge cap 20. It may be set differently. Specifically, in the example shown in FIG. 8, the inclination angle of the first slidable surface 14a with respect to the plane perpendicular to the axis O becomes larger than the inclination angle of the second slidable surface 14b with respect to the plane. There is. Similarly, the inclination angle of the first sliding surface 25a with respect to the plane perpendicular to the axis O is larger than the inclination angle of the second sliding surface 25b with respect to the plane. In such a configuration, when the first sliding surface 14a and the first sliding surface 25a are rotated in the sliding direction, the discharge cap 20 is rotated instead of requiring a relatively large force. The amount will be smaller. On the other hand, when rotated in the opposite direction (the direction in which the second sliding surface 14b and the second sliding surface 25b slide), the amount of rotation of the discharge cap 20 increases, but the discharge cap 20 rotates. The force required for is reduced.

Further, as shown in FIGS. 9 and 10, the sliding portion 25 is composed of a convex portion protruding from the lower end surface 22c of the outer peripheral wall 22 of the discharge cap 20, and the slided portion 14 is concave downward. It may be composed of recesses.

The sliding portion 25 shown in FIG. 9 is composed of a trapezoidal convex portion that protrudes downward from the lower end surface 22c of the outer peripheral wall 22 of the discharge cap 20 and gradually narrows downward. Correspondingly, the slidable portion 14 is composed of a trapezoidal concave portion formed on the upper surface of a convex portion that protrudes radially outward from the outer peripheral surface of the mouth portion 11 and is concave downward. There is.

The example shown in FIG. 10 shows a case where the trapezoidal sliding portion 25 shown in FIG. 9 is a semicircular convex portion. Also in the cases shown in FIGS. 9 and 10, the slidable portion 14 and the sliding portion 25 form a cam mechanism that converts the rotational movement of the discharge cap 20 with respect to the mouth portion 11 into an axial linear motion along the axis O. are doing. Therefore, by rotating the discharge cap 20, the discharge cap 20 can be separated from the mouth portion 11 in the axial direction, and the discharge cap 20 can be easily removed from the mouth portion 11. Even in the cases shown in FIGS. 9 and 10, the shapes of the slidable portion 14 and the sliding portion 25 can be changed as in the examples of FIGS. 3 to 8.

The present invention is not limited to the above embodiment, and various modifications can be made without departing from the gist thereof. For example, an outside air introduction valve for opening and closing the intake hole 24 may be provided. In that case, an annular elastic piece projecting radially outward from the outer peripheral surface of the base 41 of the valve body 40 is provided, and the tip thereof is brought into contact with the valve seat on the lower surface of the top wall portion 21 to form the intake hole 24. It can be configured to close.

1: Discharge container 10: Container body 10a: Outer layer body 10b: Inner layer body 11: Mouth portion 11a: First engaging portion (engaging portion)
11b: 1st seal portion 12: outside air introduction hole 13: neck ring 13a: lower surface 14: slidable portion 14a: first slidable surface (sliding inclined surface)
14b: Second slidable surface (sliding inclined surface)
14c: Side surface 15a: First straight surface 15b: First step portion 15c: Second straight surface 15d: Second step portion 15e: Third straight surface 20: Discharge cap 21: Top wall portion 21a: Discharge cylinder 21b: Circular groove 22: Outer peripheral wall 22a: Second engaging portion 22b: Second sealing portion 22c: Lower end surface 23: Discharge port 24: Intake hole 25: Sliding portion 25a: First sliding surface (inclined surface)
25b: Second sliding surface (inclined surface)
25c: Side surface 30: Inner plug 31: Partition 31a: Outflow hole 31b: Circular groove 31c: Ventilation groove 32: Sealing cylinder portion 33: Support cylinder portion 33a: Communication groove 34: Cylindrical wall 34a: Reduced diameter portion 35: Movement Valve body 40: Valve body 41: Base 42: Elastic piece 43: Valve body 50: Cover 51: Hinge 52: Sealing wall portion 53: Picking portion S: Containment space

Claims (9)

A container body having a tubular mouth and a body connected to the mouth to form a storage space for the contents, and a container body.
It has a discharge port from which the contents are discharged, and is provided with a discharge cap attached to the port portion by tapping.
The container body has a slidable portion that protrudes from the outer peripheral surface of the mouth portion.
The discharge cap is a sliding portion that causes the discharge cap to be axially separated from the mouth portion by sliding with respect to the slided portion when the discharge cap attached to the mouth portion is rotated. Have,
The sliding portion or the slided portion has an inclined surface extending diagonally with respect to a plane perpendicular to the axis of the discharge cap .
The inclined surface is provided on both the left and right sides of the sliding portion or the slided portion, and the inclination angle of one of the inclined surfaces is larger than the inclination angle of the other inclined surface. Discharge container. The discharge container according to claim 1, wherein the sliding portion is provided at the lower end portion of the outer peripheral wall of the discharge cap. The discharge container according to claim 1 or 2, wherein the sliding portion is formed in a notch shape that opens in the lower end surface of the outer peripheral wall of the discharge cap. The discharge container according to any one of claims 1 to 3, wherein the sliding portion has the inclined surface. The discharge container according to claim 4, wherein the inclined surfaces are provided on both the left and right sides of the sliding portion. The slidable portion has a slidable inclined surface that faces the inclined surface of the sliding portion and extends in parallel with the inclined surface in a state where the discharge cap is attached to the mouth portion. The discharge container according to 4 or 5. The container body has an engaging portion for engaging and holding the discharge cap provided on the outer peripheral surface of the mouth portion, and a neck ring located below the engaging portion.
The discharge container according to any one of claims 1 to 6, wherein the slidable portion is located between the engaging portion and the neck ring in the axial direction of the mouth portion. The discharge container according to any one of claims 1 to 7, wherein the plurality of slidable portions are evenly arranged in the circumferential direction of the mouth portion. The discharge container according to any one of claims 1 to 8, wherein the inclined surface is a flat surface or a curved surface extending in a straight line.

Images