JP2018095260A - Cap - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cap with excellent opening/closing operability and high convenience capable of reducing an amount of remaining content by improving consumption of the content.SOLUTION: A cap of the present invention is detachably attached at an upper end of a container body and a lid portion is joined to a cap body at a hinge portion. The cap body includes a top surface portion having a plane intersected in a detachable direction, a cap side spouting portion extending from the top surface portion toward a side of the lid portion in a closed state to the cap body, and a fitting portion extending from the top surface portion to an opposite direction of the cap side spouting portion. The fitting is attached to the container body by fitting to a container side spouting portion provided on the container body in a screwing manner and the cap body and the lid portion include bending portions inclined from a predetermined portion in a direction facing the hing portion with respect to a central axis toward the side of the container body respectively. A first bending portion of the cap body and a second bending portion of the lid portion are configured to coincide with each other in the closed state to the cap body.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a cap.

  In dentifrice products, the dentifrice, which is the content, often has a viscosity, and the viscosity of the dentifrice varies from product to product. Therefore, the tube container has a design in which the diameter of the spout varies depending on the viscosity of the dentifrice.

  Several types of caps for tube containers used to contain dentifrices are known from the viewpoint of sealing and operability, and there are screw types, undercut types, hinge types, and composite types. Among these, the container provided with the hinge-type cap is excellent in usability because it is easy to open the closing portion with one hand (for example, Patent Document 1).

JP-A-2015-137113

  On the other hand, in order to protect the contents, the inner layer structure of the container body has been devised in various ways, and the shoulder 103, which is a fitting part with the cap, also has a certain thickness to protect the contents. Necessary. However, if the shoulder 103 of the container main body is not easily deformed, it is difficult to push out the contents when the remaining amount of the contents decreases. Furthermore, in the case where the container main body and the cap cannot be separated, the shoulder portion 103 of the container main body cannot be deformed, so that the content cannot be pushed out, and the remaining amount of the content becomes a problem.

  One aspect of the present invention has been made in view of the above-described problems of the prior art, and is a highly convenient cap that is excellent in opening and closing operability and can reduce the remaining amount by improving the consumption of contents. The purpose is to provide.

  The cap according to an aspect of the present invention is a cap that is detachably attached to the upper end of the container body, the lid portion is joined to the cap body by a hinge portion, and the cap body is a plane that intersects the attachment / detachment direction. A cap-side extraction portion extending from the top surface portion toward the lid portion in a closed state with respect to the cap body, and a cap-side extraction portion extending from the top surface in the opposite direction. A fitting portion, and the fitting portion is attached to the container main body by screwing into a container side extraction portion provided in the container main body, and the cap main body and the lid portion are attached to the central axis. On the other hand, each has a curved portion inclined toward the container body from a predetermined position in a direction facing the hinge portion, the top surface portion includes the first curved portion, and the lid portion is closed with respect to the cap body. The first curved portion of the cap body and the lid in the closed state It has a configuration in which the second curved portion of the match.

  In the cap according to the aspect of the present invention, the first curved portion is provided on a contact surface of an outer peripheral edge of the top surface portion, and the second curved portion is formed when the lid portion is closed. The container main body is provided at an opening end of the lid portion that contacts the curved portion of the container, and the first curved portion and the second curved portion are axially more than the flat surface with the lid portion closed. It is good also as a structure which corresponds in the position of the side.

  In the cap according to the aspect of the present invention, the cap-side extraction portion may be configured to be eccentric from the central axis.

  In the cap according to the aspect of the present invention, the cap body is formed on the side opposite to the hinge via the central axis, and a concave portion that is recessed toward the central axis side covers the cap body and the lid part. The recessed portion is formed to have a value that is set to a value that is half or more of the height of the cap body in the direction along the central axis, and has a larger range formed in the lid portion than the cap body. Good.

  The cap in 1 aspect of this invention WHEREIN: It is good also as a structure where the said hinge part is located in the said container main body side rather than the front-end | tip of the said cap side extraction | pouring part.

  According to the present invention, it is possible to provide a highly convenient cap that is excellent in opening and closing operability and can improve the consumption of contents and reduce the remaining amount.

The front view which shows an example of the container 100 of the state which mounted | wore the container main body 101 with the cap 1. As shown in FIG. The side view of the container 100 shown in FIG. The perspective view which shows a mode at the time of attaching the cap 1 to the container main body 101. FIG. The perspective view which shows the state which opened the cover part 3 in the cap 1. FIG. FIG. 4A is a side view showing a state in which the lid portion 3 is closed with respect to the cap body 2. FIG. 5B is a side view showing a state in which the lid portion 3 is opened from the cap body 2. The top view which shows the state which opened the cover part 3 in the cap 1. FIG. The perspective view which shows the structure of the back surface side (cap main body 2 side) of the cover part 3. FIG.

The cap which concerns on this invention is a cap attached to the upper end of the container main body which accommodates the content so that attachment or detachment is possible. Below, the screwing type cap which is an example of the cap which concerns on this invention is demonstrated in detail with reference to drawings.
In the following drawings, in order to make each component easy to see, the scale of dimensions may be different depending on the component.

  FIG. 1 is a front view showing an example of a container 100 in a state where the cap 1 is attached to the container main body 101. FIG. 2 is a side view of the container 100 shown in FIG. FIG. 3 is a perspective view showing a state when the cap 1 is attached to the container main body 101. FIG. 4 is a perspective view showing a state in which the lid 3 of the cap 1 is opened. FIG. 5A is a side view showing a state in which the lid portion 3 is closed with respect to the cap body 2, and FIG. 5B is a side view showing a state in which the lid portion 3 is opened from the cap body 2. is there. FIG. 6 is a top view showing a state in which the lid 3 of the cap 1 is opened. FIG. 7 is a perspective view showing the configuration of the back surface side (cap body 2 side) of the lid 3.

<Construction of container>
The cap 1 of this embodiment is detachably attached to the upper end of a container main body 101 for storing contents, as shown in FIGS. The container 100 in which the cap 1 is mounted on the container body 101 is placed upside down with the cap 1 side facing down as shown in FIG. 1 in a normal use state.

  Here, the vertical direction of the inverted container 100 is indicated by the Z direction, the direction along the hinge axis P (FIG. 6) of the hinge portion 4 is indicated by the X direction, and the vertical direction and the direction intersecting the hinge axis P are indicated by the Y direction. Further, a central axis along the vertical direction of the container 100 is indicated by a symbol O. Here, the mounting direction of the cap 1 with respect to the container body 101 is along the central axis O (vertical direction) of the container 100.

  It does not specifically limit as the container 100, What is necessary is just to be able to accommodate the contents, such as dentifrice, kneaded wasabi, kneaded glass, and cosmetic cream, for example, a tube, a bottle, a pouch, a metal can, a bottle etc. It is done.

(Container body)
As shown in FIGS. 1 and 2, the container main body 101 includes a body portion 102 for storing contents, a shoulder portion 103 formed on the body portion 102, and a container side extraction portion 104 formed on the shoulder portion 103. And having. As shown in FIG. 3, the shoulder portion 103 is formed at the upper end of the body portion 102 and is inclined so as to gradually narrow upward. The container side pouring part 104 protrudes from the upper end of the shoulder part 103, and makes the cylinder shape which the upper end opened.

  The shoulder portion 103 and the container side extraction portion 104 of the container main body 101 are integrally formed by compression molding or heat-welded an injection molded product to the container main body portion. The cross-sectional shape in the direction intersecting the longitudinal direction of the trunk portion 102 is not particularly limited, and can be arbitrarily selected from, for example, a circle, a polygon, an ellipse, and a star. A first spout 105 that communicates with the accommodating space in the trunk portion 102 is provided in the approximate center of the container main body 101, and is formed by the container-side pouring portion 104. On the outer peripheral surface 104a of the container-side extraction portion 104, a convex male screw thread 106 that allows the threaded cap 1 to be mounted is formed in a spiral shape. The cross-sectional shape of the male thread 106 is not limited to a triangle, and may be a semicircle, a rectangle, or the like.

  The container main body 101 is provided with a pair of locking portions 107 that protrude outward on both sides in the radial direction from the base portion of the container side extraction portion 104 to the shoulder portion 103. The pair of locking portions 107 function as a stopper when the cap is screwed. The locking portion 107 is located on at least one side in the radial direction of the container-side extraction portion 104, and includes a first convex portion 107a, a second convex portion 107b that protrudes further radially outward than the first convex portion 107a, These are arranged around the axis of the container side extraction part 104. When the cap 1 is attached to the container main body 101, each of a pair of abutting portions 25, 25 (FIG. 7) on the cap 1 side, which will be described later, is connected to each locking portion 107 provided on the container main body 101. Overcoming the first convex portion 107a, the second convex portion 107b is contacted and locked. Thus, the cap 1 is screwed to the container body 101.

  A known material can be used as the material of the container body 101. For example, polyethylene (PE), polyethylene terephthalate (PET), polypropylene (PP), polyamide (PA), polystyrene (PS), ethylene-vinyl alcohol copolymer. (EVOH), elastomer, polyoxymethylene (POM), silica, glass, metal foil, or a composite material thereof.

<Configuration of cap 1>
As shown in FIGS. 4, 5 (a), and 5 (b), the cap 1 has a cap body 2, a lid portion 3, a hinge portion 4, and a finger-hanging recess (recess) 5. In the cap 1 of this embodiment, a cap body 2 and a lid portion 3 are connected via a hinge portion 4. When the cap 1 is viewed from the side of the lid 3 with the lid 3 closed, a part of the circle is substantially linear at the position of the hinge 4 (in practice, a curve slightly curved toward the central axis O). Shape). In the hinge-type cap 1, the plan view shape as viewed from the central axis O is formed such that the hinge portion 4 side is cut off, so that the hinge portion 4 fits within the external contour of the cap 1.

  Further, as shown in FIG. 2, the hinge portion 4 is accommodated inside the outer edge of the shoulder portion 103 in the trunk portion 102 of the container body 101, so that the hinge portion 4 can be used during use, storage, transportation, and the like. Can be prevented from being caught and difficult to handle. In particular, the hinge unit 4 is prevented from coming into contact with the manufacturing apparatus in the content filling process and the transporting process with respect to the container main body 101, and alignment during filling is unnecessary. In addition, when the shrink film is attached to the container 100, the film can be prevented from being broken by the hinge portion 4.

  As shown in FIG. 4, a second spout 20 that communicates with a first spout 105 (FIG. 3) on the container body 101 side is provided near the center of the cap body 2. As shown in FIGS. 5B and 6, the second spout 20 is formed at a position eccentric from the central axis O, and is opposite to the hinge 4 with respect to the central axis O (front side). It is slightly shifted. The diameter of the second spout 20 is smaller than the diameter of the first spout 105 on the container body 101 side. Specifically, the diameter of the second spout 20 is preferably in the range of 1 mm to 15 mm, and more preferably in the range of 2 mm to 10 mm.

  The cap main body 2 has a bottomed cylindrical shape, a top surface portion 21 in which the second pouring port 20 is formed, and a cap side pouring portion 23 extending from the top surface portion 21 to the opposite side in the axial direction from the opening end 2a. The inner cylinder part (fitting part: FIG. 7) 26 extending from the top surface part 21 to the opening end 2a (the container body 101 side), and the outer periphery of the top surface part 21, that is, the inner cylinder part 26 in the top surface part 21 And an outer cylindrical portion (side wall portion) 27 extending toward the opening end 2a. The outer cylinder part 27 constitutes the outermost wall of the cap body 2.

  The top surface portion 21 includes a flat surface 21a perpendicular to the central axis O, a hollow surface 21b having an inclination with respect to the flat surface 21a, and a contact surface (first curved portion) 21c provided on the outer peripheral edge of the top surface portion 21. , Comprising. The top surface portion 21 of the present embodiment enters the inside of the lid portion 3 with the lid portion 3 closed.

  The flat surface 21 a exists from the hinge portion 4 side in the top surface portion 21 to the periphery of the cap side extraction portion 23. Specifically, the flat surface 21 a is provided between the hinge portion 4 and the cap side extraction portion 23 from both sides of the hinge portion 4 and around the cap side extraction portion 23 so as to surround it. That is, the hinge part 4 is provided on the extension of the flat surface 21a.

  The lightening surface 21b is a smooth curved surface that is connected to the flat surface 21a and is inclined so as to descend from the flat surface 21a side to the outer cylindrical portion 27 side as it goes radially outward. In addition, it is not restricted to the structure of this embodiment, The thickness reduction surface 21b may not be a surface which draws a smooth curve.

  The hollow surface 21b is formed around the cap-side extraction portion 23 as viewed from the axial direction and in a region excluding the hinge portion 4 side. For example, as shown in FIG. The shape is like drawing. Here, the start end of the lightening surface 21 b is radially outward from the hinge portion 4.

  The contact surface 21c is provided on the outer peripheral edge of the top surface portion 21 excluding the hinge portion 4 side, and is present at a position lower by one step toward the opening end 2a than the flat surface 21a and the lightening surface 21b. As shown in FIG. 5A, the contact surface 21 c is curved so as to draw a curve similar to the facing end surface 3 b of the lid portion 3, and is in a direction facing the hinge portion 4 with respect to the central axis O. It curves toward the opening end 2a from a predetermined position. Thereby, in the state which closed the cover part 3, the opposing end surface 3b of the cover part 3 and the contact surface 21c of the cap main body 2 correspond in an axial direction.

  The step 22 (FIG. 4) between the flat surface 21a and the lightening surface 21b and the contact surface 21c has a height that can prevent water from entering from the gap with the lid 3 when the lid 3 is closed. Is set. The contact surface 21c is formed along the shape of the flat surface 21a and the hollow surface 21b, and a first flat region 21c1 that follows the top surface portion 21, and an inclined region that is inclined from the first flat region 21c1 toward the opening end 2a side. 21c2 and a second plane region 21c3 that is present at a lower position on the opening end 2a side than the first plane region 21c1 on the opposite side of the hinge portion 4 with respect to the central axis O. The first planar area 21c1 and the second planar area 21c3 are planes perpendicular to the central axis O. The width of the contact surface 21 c corresponds to the thickness of the outer cylindrical portion 33 of the lid portion 3.

As shown in FIG. 6, the overall plan view shape of the top surface portion 21 of the present embodiment is a substantially elliptical shape that is long in the direction along the hinge axis P of the hinge portion 4. In addition, the planar view shape of the entire top surface portion 21 is not limited to an elliptical shape, and may be a round shape, a polygonal shape, or a composite shape thereof.
Further, the overall shape of the top surface portion 21 as viewed from the side of the cap 1 is reduced toward the cap-side extraction portion 23 by the inclined lightening surface 21b.

  The cap side pouring portion 23 has a cylindrical shape that forms the second pouring port 20 on the inner side, and is directed to the upper surface of the top surface portion 21 toward the lid portion 3 in a state where the lid portion 3 is closed with respect to the cap body 2. It extends from. A fitting ring 28 that protrudes in the radial direction is provided on the outer periphery on the distal end side of the cap-side extraction portion 23. The fitting ring 28 is a part for locking the lid 3 to the cap body 2 when the lid 3 is closed.

  Although the axial direction length of the cap side extraction part 23 can be set arbitrarily, Preferably, it is about 2-15 mm, and about 5-10 mm is more preferable.

  As shown in FIG. 7, the inner cylindrical portion 26 has a cylindrical shape that forms the second spout 20 inside, and extends from the lower surface side of the top surface portion 21 toward the opening end 2 a side. The diameter of the inner cylinder part 26 is larger than the diameter of the second spout 20. As shown in FIG. 7, a concave female screw thread 29 is spirally formed on the inner peripheral surface of the inner cylindrical portion 26. The cross-sectional shape of the female thread 29 can be appropriately changed according to the cross-sectional shape of the male thread 106 on the container body 101 side shown in FIG.

  As shown in FIG. 7, a pair of contact portions 25, 25 extending along the center axis O are provided on the outer peripheral surfaces 26 a on both sides in the radial direction of the inner cylindrical portion 26. In the present embodiment, the pair of contact portions 25, 25 are arranged in the front-rear direction of the cap 1 and face each other in the radial direction, but the arrangement is not limited thereto. The tips of the contact portions 25, 25 protrude outward in the axial direction from the opening end of the inner cylindrical portion 26. When the cap 1 is attached to the container main body 101, the pair of contact portions 25 and 25 get over the first convex portions 107a of the respective locking portions 107 and 107 on the container main body 101 side, The second protrusions 107b are brought into contact with and locked. Thus, the cap 1 is attached to the container main body 101.

The outer cylindrical portion 27 extends from the outer edge of the top surface portion 21 toward the container main body 101 side from the open end of the inner cylindrical portion 26 on the radially outer side of the inner cylindrical portion 26. That is, the length of the outer cylindrical portion 27 in the axial direction is longer than the length of the inner cylindrical portion 26 (the pair of contact portions 25, 25). The outer cylindrical portion 27 has a notch shape in which the side of the back wall portion 27B on which the hinge portion 4 is provided is lacking in a straight line.
The outer cylindrical portion 27 slightly expands radially outward toward the opening end 2a in the left-right direction along the hinge axis P shown in FIG.

  As shown in FIG. 5A, the cap 1 is formed with a finger contact recess 5 for making it easy to open the lid 3 from the cap body 2. The finger contact recess 5 is located on the opposite side of the hinge portion 4 via the central axis O and is formed over the cap body 2 and the lid portion 3. The finger contact recess 5 has a concave shape that is recessed toward the central axis O side. The length of the finger rest recess 5 along the central axis O is set to a value that is at least half (1/2) of the overall height of the cap 1. The finger contact recess 5 is formed so as to leave a part of the outer cylindrical portion 27 of the cap body 2 and the outer cylindrical portion 33 of the lid portion 3 in the axial direction on the upper and lower sides of the cap 1, and is formed on the lid portion 3 side. It is continuous with the finger-hanging convex portion 6. Accordingly, the user can easily put a finger on the finger rest concave portion 5 and the finger hanging convex portion 6 to apply force in the opening direction, and easily open the lid.

  As shown in FIG. 5A, the depth T of the finger contact recess 5 is preferably a depth that is recessed by about 1 to 5 mm from the outer peripheral surface of the outer cylindrical portions 27 and 33 toward the central axis O side. As shown in FIG. 6, the formation range around the axis of the finger contact recess 5 is preferably about the front half.

(Cover)
As shown in FIG. 4, the lid portion 3 is provided on the cap body 2 via the hinge portion 4 so as to close the second spout 20 on the cap body 2 side so as to be freely opened and closed.
As shown in FIGS. 4 to 6, the lid portion 3 has a bottomed cylindrical shape, a lid surface portion 31 serving as the entire top surface (bottom surface) of the cap 1, and an opening end (cap body) 3 a side from the lid surface portion 31. And an outer cylindrical portion 33 that extends from the outer periphery of the peripheral surface of the lid surface portion 31, that is, the inner cylindrical portion 32 in the lid surface portion 31 to the opening end 3 a side.

  As shown in FIG. 4, the inner cylindrical portion 32 is provided in the vicinity of the center on the back surface side of the lid surface portion 31, and an outer ring 34 is provided on the inner peripheral surface on the distal end side. Thereby, in the state which closed the cover part 3, the front end side of the cap side extraction | pouring part 23 fits in the outer ring 34 in the inner side cylinder part 32. As shown in FIG. That is, the lid portion 3 is fitted to the cap main body 2 side by a so-called outer ring method so as to close the second spout 20 so as to be freely opened and closed.

  Moreover, since the inner peripheral surface of the inner cylinder part 32 inclines in the taper shape so that the thickness of the wall part of the inner cylinder part 32 may become thin from the outer ring 34 to the front-end | tip of the inner cylinder part 32, the cap side The distal end side of the extraction portion 23 is guided into the inner cylindrical portion 32 along the above inclination, and the fitting ring 28 and the outer ring 34 are fitted. In this manner, the fitting ring 28 on the distal end side of the cap side extraction portion 23 is fitted into the outer ring 34 in the inner cylinder portion 32 in a state where the lid portion 3 is closed. That is, the lid portion 3 is fitted to the cap main body 2 side by a so-called outer ring method so as to close the second spout 20 so as to be freely opened and closed.

  In addition, about the content extraction stop mechanism in the container 100, you may employ | adopt any of an inner ring system, an inner boss system, an undercut system, and a hemispherical liquid stop system.

  As shown in FIGS. 5A and 5B, the outer cylindrical portion 33 of the lid portion 3 has a shape in which the opening end 3 a side follows the curved shape on the cap body 2 side. The opening end (second curved portion) 3a of the outer cylindrical portion 33 is inclined toward the cap body 2 (container body 101) from a predetermined position in the direction (Y direction) facing the hinge portion 4 with respect to the central axis O. It becomes. The open end 3a has an opposing end surface 3b facing the contact surface 21c provided on the cap body 2 side in a state where the lid 3 is closed. The opposing end surface 3b extends from both sides of the hinge portion 4 and forms a region parallel to the lid surface portion 31. The opposing end surface 3b is first as it goes to the opposite side of the hinge portion 4 with respect to the central axis O. An inclined area 3b2 that inclines so as to descend from the plane area 3b1 toward the cap body 2 side, and is opposite to the hinge part 4 with respect to the central axis O, and the first plane with the lid 3 closed. And a second planar region 3b3 located closer to the cap body 2 than the region 3b1. The first plane area 3b1 and the second plane area 3b3 are planes perpendicular to the central axis O.

(Hinge)
As shown in FIGS. 5B and 6, the hinge portion 4 is a three-point hinge, and has a central hinge 4 </ b> A having an L-shaped cross section provided in the center of the back wall portion 27 </ b> B of the cap body 2. A pair of thin hinges 4B, 4B provided on both sides of the central hinge 4A. The central hinge 4 </ b> A is formed such that the lower part is connected to the back wall part 27 </ b> B of the outer cylinder part 27 and the upper part is connected to the lid part 3. The thin hinges 4B and 4B are formed in a state of protruding backward from the back wall portion 27B.

  The material of such a cap 1 will not be specifically limited if it is a material normally used for the hinge-type cap 1, For example, PP, PE, PA, PET, PS, a metal, or these composite materials etc. are mentioned. . The cap 1 can be formed by injection molding or the like.

  As for said resin, 1 type of resin may be used independently and 2 or more types of resin may be used together. Further, the present invention is not limited to single color molding, and two color molding may be performed.

  According to the cap 1 of the present embodiment, when the contents in the container main body 101 are reduced by use, the shoulder 103 of the container main body 101 is deformed by releasing the screwing to the container main body 101. The contents accumulated near the shoulder 103 of the container body 101 can be pushed out and used. In the present embodiment, the screwed state can be released and the cap 1 can be detached from the container main body 101 simply by rotating the cap 1 about an arbitrary axis with respect to the container main body 101. Since the cap 1 can be separated from the container main body 101, the deformation operation of the shoulder 103 of the container main body 101 can be easily performed. Thereby, the remaining amount of the contents that cannot be completely discharged and remain in the container 100 can be reduced, and usability is improved. Moreover, since it is the hinge-type cap 1, it is easy to open and close the cover part 3 in a normal use state, and is convenient.

  Moreover, in this embodiment, since the liquid stop boss | hub is not provided in the outer ring 34 of the cover part 3, even when the content remains in the cap side extraction part 23, the cap side extraction part 23 is the cover part 3. It is easy to fit in the inner cylinder part 32 of this, and it is easy to close the cover part 3. FIG.

  Furthermore, the cap 1 of the present embodiment has a gentle curved shape from the hinge portion 4 side to the finger rest recess 5 by providing the top surface portion 21 of the cap body 2 with the lightening surface 21b. Thereby, the peripheral structure of the cap side extraction part 23 can be slimmed, and the cap side extraction part 23 is not hidden behind the outer cylindrical part 27 when viewed from the side during use. The visibility of the side extraction part 23 was improved. Therefore, it is easy to grasp the positional relationship between the second spout 20 and the toothbrush during use. Further, in order to improve the pouring property of the contents, that is, in order to improve the visibility of the tip side of the cap side pouring portion 23, it is not necessary to lengthen the cap side pouring portion 23, and the lid portion 3 is The total height (thickness) of the included cap 1 does not increase. The same height (thickness) as that of the existing cap 1 can be maintained.

  In the present embodiment, the lid 3 is configured to be fitted over the cap body 2. For this reason, since the cover part 3 and the cap main body 2 overlap in the direction crossing the axial direction, when a force in an oblique direction or a lateral direction is applied to the cover part 3, The displacement is suppressed and no stress is directly applied to the hinge portion 4. In addition, there is an effect of suppressing the ingress of water droplets during use.

  In the present embodiment, the line of the opening end 3a of the lid 3 is not limited to the above-described line shape, and the cover is such that not only the cap-side extraction portion 23 but also a part of the top surface portion 21 enters the lid portion 3. As long as it is a structure, the line of the opening end 3a of the outer side cylinder part 33 of the cover part 3 may be curvilinear form other than the above, linear form, or diagonal form.

  In the present embodiment, the second spout 20 is provided at a position where the central axis Q of the second spout 20 is eccentric from the central axis O of the cap 1 toward the front. Since the cap-side extraction part 23 is arranged at a position that enters the inside of the lightening surface 21b from the hinge part 4, the tip side of the cap-side extraction part 23 is not hidden by the surrounding flat surface 21a. Sexuality is improved.

  In this embodiment, it is preferable that the opening angle of the lid 3 with respect to the cap body 2 is 90 ° or more with the lid 3 opened. As a result, the top surface portion 21 is largely opened, so that it is possible to prevent the cap-side extraction portion 23 from being shaded by the lid portion 3 and reducing the usability during use.

  In the present embodiment, the height of the finger rest recess 5 provided between the cap body 2 and the lid 3 is set to be half or more of the entire height of the cap 1. By ensuring a large height of the finger rest recess 5, finger engagement (fitness) is improved when the lid 3 is opened, and usability is improved.

  As described above, the preferred embodiments according to the present invention have been described with reference to the accompanying drawings, but the present invention is not limited to the examples. It is obvious for those skilled in the art that various changes or modifications can be conceived within the scope of the technical idea described in the claims. It is understood that it belongs to.

  For example, the fitting structure of the cap 1 to the container body 101 is not limited to the screwing method, and an undercut method may be used.

In the above-described embodiment, the second spout 20 is provided at a position eccentric with respect to the central axis O of the cap 1, but is not limited thereto, and may coincide with the central axis O.
In the above-described embodiment, the inclination angle of the lightening surface 21b with respect to the flat surface 21a is the same in the circumferential direction, but may be partially different.
In the above-described embodiment, a pair of locking portions 107 and 107 that function as stoppers when the cap 1 is mounted are provided on the container body 101 side, and a pair that contacts the pair of locking portions 107 and 107. However, the present invention is not limited to this configuration, and a configuration having another stopper function may be provided. Further, as long as the cap 1 can be satisfactorily screwed to the container body 101, the stopper function itself may not be provided.
Moreover, the hinge part 4 is not restricted to a 3 point | piece hinge system, A butterfly system, a snap hinge system, etc. can be used arbitrarily.
Further, in the above-described embodiment, the lightening surface 21b is configured by an inclined surface that is inclined at a predetermined angle with respect to the plane. That is, the cross-sectional shape of the lightening surface 21b is linear, but may be a curved shape, a convex shape, a concave shape, or a shape obtained by combining these.
Moreover, the formation range of the lightening surface 21b around the axis is not limited to the above-described embodiment, and can be arbitrarily set.

  DESCRIPTION OF SYMBOLS 1 ... Cap, 2 ... Cap main body, 3 ... Cover part, 3a ... Open end (2nd curved part), 4 ... Hinge part, 5 ... Recessed part, 5 ... Recessed part (recessed part), 21 ... Top surface part, 21a ... Plane , 21c ... abutment surface (first curved part), 23 ... cap side extraction part, 27 ... outer cylinder part (side wall part), 100 ... container, 101 ... container body, O, Q ... central axis

Claims (5)

A cap detachably attached to the upper end of the container body,
The lid is joined to the cap body at the hinge,
The cap body includes a top surface portion having a plane intersecting a central axis, a cap side pouring portion extending from the top surface portion toward the lid portion in a closed state with respect to the cap body, and the top surface. A fitting portion that extends in a direction opposite to the cap-side extraction portion from the surface portion; and a side wall portion that is located outside the fitting portion and constitutes an outer wall of the cap body, and the fitting portion Is fitted to the container body by fitting the container body by a screwing method,
Each of the cap body and the lid portion has a curved portion that curves so as to draw a similar curve from a predetermined position in a direction facing the hinge portion with respect to the central axis toward the container body side. And
A cap having a configuration in which the first curved portion of the cap body and the second curved portion of the lid portion coincide with each other in the axial direction in a state where the lid portion is closed. The first curved portion is provided on the contact surface of the outer peripheral edge of the top surface portion,
The second curved portion is provided at an opening end of the lid portion that comes into contact with the first curved portion when the lid portion is closed,
2. The cap according to claim 1, wherein the first bending portion and the second bending portion coincide with each other at a position closer to the container body than the plane in the axial direction in a state where the lid portion is closed.   The cap according to claim 1 or 2, wherein the cap-side extraction portion is in a position eccentric from the central axis. On the side opposite to the hinge portion via the central axis, a concave portion that is recessed toward the central axis side is formed over the cap body and the lid portion,
The length of the concave portion along the central axis is set to a value that is half or more of the height of the cap body, and the range formed in the lid portion is larger than the cap body. Cap according to any one of the above.   The said hinge part is a cap as described in any one of Claim 1 to 4 located in the said container main body side rather than the front-end | tip of the said cap side extraction | pouring part.

Images