JP3182767U - Cap structure - Google Patents

Abstract

In a cap structure that can be attached to and detached from a mouth portion of a container body, the cap has improved gripping ability and opening / closing operability without imparting knurls to the outer peripheral face by devising the outer peripheral face of the cap holding part. Provide the structure.
A covered cylindrical inner cylinder part, a flange part 24 formed on the outer periphery of the inner cylinder part, and an outer cylinder part 29 arranged on the outer periphery side of the inner cylinder part via the flange part 24. The outer cylinder part 29 forms the outer peripheral surface 29a which expands toward the cover part 21a side of an inner cylinder part.
[Selection] Figure 1

Description

  The present invention relates to a structure of a cap that is detachably attached to a mouth portion of a container body.

  In general, in containers that store liquid substances such as liquid detergents, liquid bleaches, liquid softeners, solvents, etc., and granular substances such as granular detergents, granular bleaches, and granular seasonings, a cap is attached to the mouth of the container body. Install as possible. Among these caps, there is a cap in which an outer cylinder portion is arranged on the outer periphery of a covered cylindrical inner cylinder portion, and a lower inner periphery of the outer cylinder portion is screwed to an outer periphery of a mouth portion of a container body (for example, a patent) Reference 1).

International Publication No. 2006/009990

In the cap as described above, as a measure for improving its gripping ability and opening / closing operability, a knurling (knurl) may be given to a gripping part such as an outer peripheral surface of the outer cylinder part.
However, when the area of the grip portion of the cap is small, the knurled tactile feel may be uncomfortable.
Moreover, in the cap of patent document 1, although the outer cylinder part is extended to the cover part side of an inner container and the area of the holding part of a cap is increased, there is no description about the device of the outer peripheral surface of an outer cylinder part.

  Therefore, the present invention improves the gripping ability and opening / closing operability of the cap without imparting knurls to the outer peripheral surface by devising the outer peripheral surface of the cap gripping part in the cap structure that can be attached to and detached from the mouth of the container body. For the purpose.

As a means for solving the above problems, the present invention relates to a cap structure that is detachably attached to a mouth portion of a container body, and a covered cylindrical inner cylinder portion, and a flange portion formed on an outer periphery of the inner cylinder portion; An outer cylinder portion disposed on the outer periphery side of the inner cylinder portion via the flange portion, and the outer cylinder portion forms an outer peripheral surface that expands toward the lid portion side of the inner cylinder portion. It is characterized by doing.
In the present invention, the outer cylinder part extends to the lid part side from the flange part and covers the outer peripheral side of the inner cylinder part, and the cap opening side opposite to the lid part from the flange part And a rotation engaging portion that extends to the mouth and rotates and engages with the mouth portion.
In the present invention, the outer peripheral surface of the outer cylinder portion may be a concave curved surface that is curved with respect to the cap axis.
In the present invention, the outer peripheral surface of the outer cylinder part may partially form a recess in the cap circumferential direction.
In the present invention, the end portion on the lid portion side of the outer cylinder portion may be formed on the same surface.
In the present invention, an end of the outer cylinder portion on the lid portion side may be at a position lower than the lid portion.
In this invention, you may consist of resin with a bending elastic modulus which satisfy | fills 1000 Mpa.

According to the present invention, the outer cylinder part on the outer periphery of the inner cylinder part forms an outer peripheral surface that expands toward the lid part side of the inner cylinder part, so that knurling is not given to the outer peripheral surface of the outer cylinder part, Cap gripping properties (difficult to drop off and tactile sensation) and opening / closing operability can be improved.
If the outer peripheral surface of the outer cylinder part is a concave curved surface that is curved with respect to the cap axis, the outer cylinder part serving as the grip part can easily become familiar with the fingers that grip the cap, and the gripping ability of the cap can be further improved.
If the outer circumferential surface of the outer cylinder part partially forms a recess in the circumferential direction of the cap, the recess becomes a finger hook when the opening and closing of the cap is accompanied by a rotating operation, further improving the opening and closing operability of the cap, The tube portion can be reinforced.
If the end part of the outer cylinder part on the lid part side is formed on the same surface, it is possible to improve the ease of molding when this end part is used as the parting part of the cap molding die.
If the end of the outer cylinder on the lid side is lower than the lid, the resin fluidity during cap molding is improved compared to the case where this end is made the same height as the lid, The amount of resin used can be reduced.
If the cap is made of a resin satisfying a bending elastic modulus of 1000 MPa, the outer cylinder part is hardly deformed by the gripping of the consumer, and the gripping property and the opening / closing operability can be improved.

It is a longitudinal cross-sectional view which follows the center axis line of the cap periphery of the container with a measurement cap in embodiment of this invention. It is a perspective view of 1st embodiment of the measurement cap of the said container with a measurement cap. It is a perspective view of a second embodiment of the measuring cap. It is the top view which looked at the measurement cap of FIG. 3 from the axial direction upper side. It is a perspective view of 3rd embodiment of the said measurement cap. It is the top view which looked at the measurement cap of FIG. 5 from the axial direction upper side.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a vertical cross-sectional view of the top of a container (container) 1 with a measuring cap in an upright state. The container 1 with a measuring cap includes a container main body 2 that stores the contents, and a measuring cap (cap) 20 that is detachably attached to the mouth 3 located at the top of the container main body 2. The container body 2 stores liquid substances such as liquid detergents, liquid bleaches, liquid softeners, and solvents, and granular substances such as granular detergents, granular bleaches, and granular seasonings as contents. The mouth 3 of the container body 2 is composed of an inner mouth 5 of a hollow bottle body 4 and a nozzle cap 6 attached to the inner mouth 5.

  The bottle body 4 is integrally formed by, for example, blow molding using an olefin-based synthetic resin such as polyethylene, and the nozzle cap 6 is integrally formed by injection molding, for example, using an olefin-based synthetic resin such as polypropylene. For example, it is integrally formed by injection molding using an olefin-based synthetic resin such as polyethylene. The measuring cap 20 is formed of a resin that satisfies a bending elastic modulus of 1000 MPa. Examples of this resin include styrene synthetic resins in addition to olefin synthetic resins.

  The inner opening 5 has a cylindrical shape along the vertical direction, and opens the internal space K1 of the bottle body 4 above the upright state. A nozzle cap 6 having a substantially bottomed cylindrical shape is attached to the inner opening 5 from above, and a measuring cap 20 having a substantially covered cylindrical shape is attached to the nozzle cap 6 from above. The inner port portion 5, the nozzle cap 6 and the measuring cap 20 share a central axis (cap axis) C1 along the up and down direction of the upright state. Hereinafter, the direction along the center axis C1 is referred to as a cap axis direction, the direction orthogonal to the center axis C1 is referred to as a cap radial direction, and the rotation direction around the center axis C1 is referred to as a cap circumferential direction. Moreover, the open side of the inner mouth part 5 in the cap axial direction is referred to as the bottle upper side, and the bottle inner side of the inner mouth part 5 is referred to as the bottle lower side.

  The nozzle cap 6 includes a main body side screwing cylinder portion 7 screwed to the outer periphery of the inner port portion 5 and an annular main body side extending from the end of the main body side screwing cylinder portion 7 above the bottle in the cap radial direction. A flange portion 8, a bottomed cylindrical insertion portion 9 that bulges down the bottle at the inner periphery of the main body side flange portion 8 and enters the inner mouth portion 5, and a V-shaped bottom wall portion 9 a of the insertion portion 9. A flange portion 10 extending upward from the one inclined surface of the bottle, a cylindrical outer opening portion 11 standing above the bottle from an intermediate portion in the cap radial direction of the main body side flange portion 8, and a cap radial direction of the main body side flange portion 8 A cylindrical main body-side seal lip portion 12 that hangs downward from the middle portion of the bottle.

Hereinafter, a first embodiment of the measuring cap 20 will be described with reference to FIGS.
The measuring cap 20 is provided with a covered cylindrical measuring portion 21 that enters the insertion portion 9 so as to accommodate the collar portion 10 from above the bottle, and a cylinder that is provided apart from the outer periphery of the intermediate portion in the cap axial direction of the measuring portion 21. The cap-side threaded tube portion (rotating engagement portion) 22 and the peripheral wall of the metering portion 21 extend downward from the outer peripheral edge portion of the lid portion 21a of the measuring portion 21 and above the bottle above the cap-side threaded tube portion 22. An outer shell portion 23 that covers the outer periphery of the portion 21 b, and a cap-side flange portion that extends inward in the cap radial direction from the bottle upper side end portion of the cap-side threaded cylindrical portion 22 and is connected to the lower edge of the outer shell portion 23. 24 and the bottle upper side (lid portion 21a) so as to continue from the end of the cap side flange portion 24 on the outer side in the cap radial direction (upper edge portion of the cap side screwing tube portion 22) to above the cap side screwing tube portion 22. The outer wall 27 extending to the side) and the key Tsu has a cylindrical cap seal lip portion 25 depending from the cap radially inward of the flop-side flange portion 24 to the bottle downward, the.

  The lid portion 21a of the measuring unit 21 has a dome shape protruding upward from the bottle, and extends from the outer peripheral edge portion of the lid portion 21a so that the outer shell portion 23 is curved downward. The lid portion 21a and the outer shell portion 23 form a continuous spherical outer surface, and form a rounded appearance on the cap. On the outer surface of the lid portion 21a, for example, five grounding convex portions 26 are formed that serve as legs when the measuring cap 20 is placed with the open end 21c of the measuring portion 21 facing upward. The open end 21c of the measuring unit 21 is curved outward in the cap radial direction, and suppresses the wrapping of the content around the outer surface of the peripheral wall 21b when the liquid content in the measuring unit 21 is poured out.

The measuring part 21 and the outer shell part 23 constitute a covered cylindrical inner cylinder part 28 in the measuring cap 20, and the cap-side screwed cylinder part 22 and the outer wall part 27 are the cap-side flange part 24 in the measuring cap 20. The outer cylinder part 29 arrange | positioned through the outer periphery of the inner cylinder part 28 is comprised.
The cap-side threaded tube portion 22 and the outer wall portion 27 form a flush outer peripheral surface 29 a in the outer tube portion 29. The outer peripheral surface 29a has a trumpet shape that increases in diameter toward the lid portion 21a side (above bottle side) of the inner cylinder portion 28 and increases in diameter toward the lid portion 21a side. The outer peripheral surface 29a is curved with respect to the central axis C1, and is a concave curved surface convex toward the inner peripheral side of the cap. The upper end part 29b of the outer cylinder part 29 terminates at a position lower than the lid part 21a of the inner cylinder part 28 (position on the open end part 21c side). An upper end portion 29b of the outer cylinder portion 29 is formed along a circumference in a horizontal flat surface H orthogonal to the central axis C1.

  According to the cap structure in the above-described embodiment, the outer cylinder portion 29 on the outer periphery of the inner cylinder portion 28 forms the outer peripheral surface 29a that expands toward the lid portion 21a side of the inner cylinder portion 28, thereby Capability and opening / closing operability can be improved without imparting knurling to the outer peripheral surface 29a.

Here, the cylindrical outer peripheral surface 29a of the cap-side threaded cylindrical portion 22 is easily slipped by fingers gripped when the measuring cap 20 is attached / detached when the contents wrapped around from the open end 22a on the bottle lower side adhere. Become.
On the other hand, the measuring cap 20 has the outer wall portion 27 spaced from the open end portion 22a of the cap-side threaded cylindrical portion 22, thereby suppressing slippage due to the adhesion of the contents and improving the opening / closing workability.
If the outer peripheral surface 29a of the outer cylindrical portion 29 is a concave curved surface that is curved with respect to the central axis C1, the outer cylindrical portion 29 serving as a gripping portion is easy to become familiar with fingers that grip the cap, and the gripping performance of the cap is further improved.

If the upper end portion 29b on the lid portion 21a side of the outer cylinder portion 29 is formed on the same surface (flat surface H), it is easy to form when the upper end portion 29b is a parting portion of a cap molding die. Improve.
If the upper end portion 29b on the lid portion 21a side of the outer cylinder portion 29 is at a position lower than the lid portion 21a, the resin flow at the time of cap molding compared to the case where the upper end portion 29b is made the same height as the lid portion 21a. Improve the properties and reduce the amount of resin used.
If the cap is made of a resin satisfying a bending elastic modulus of 1000 MPa, the outer cylinder part 29 is hardly deformed by the grip of the consumer, and the gripping property and the opening / closing operability are improved.

Next, a second embodiment (measuring cap 120) of the measuring cap 20 will be described with reference to FIGS. The same components as those in the above embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.
In the measuring cap 120 of this embodiment, a recess 29 c is partially formed in the outer circumferential surface 29 a of the outer cylinder portion 29 in the cap circumferential direction. The recess 29c has, for example, an arc-shaped cross-section that is convex inward in the cap radial direction, and extends across the upper and lower ends of the outer peripheral surface 29a so as to be orthogonal to the cap circumferential direction. A plurality of recesses 29c (eight in the figure) are provided in the circumferential direction of the cap.

In this embodiment, the plurality of recesses 29c are arranged so as to be offset by half (four) in regions (regions A and B in FIG. 4) that are opposite to each other in the cap radial direction on the outer peripheral surface 29a. That is, the plurality of recesses 29c are formed to be arranged at unequal pitches in the circumferential direction of the cap.
According to this configuration, the outer peripheral surface 29a of the outer cylindrical portion 29 partially forms the recess 29c in the circumferential direction of the cap, so that the recess 29c serves as a finger hook when a rotation operation is involved in opening and closing the cap. The opening and closing operability can be further improved, and the outer cylinder portion 29 can be reinforced. If the plurality of recesses 29c are concentrated on the outer peripheral surface 29a at a position opposite to the cap in the radial direction of the cap, it is possible to guide the finger catching position when gripping the outer cylinder portion 29 with fingers.

Next, a third embodiment of the measuring cap 20 (the measuring cap 220) will be described with reference to FIGS. The same components as those in the above embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.
In the measuring cap 220 of this embodiment, a plurality of recesses 29c formed on the outer peripheral surface 29a of the outer cylinder part 29 are formed in a line with an equal pitch in the cap circumferential direction.
According to this configuration, even when a rotation operation is accompanied by opening and closing the cap, the finger catching position can be arranged regardless of the rotation position.

In addition, this invention is not restricted to said each embodiment, For example, this invention may be applied to the cap which is not used as a measuring tool. The structure is not limited to the screw cap structure in which the cap is rotationally engaged by screwing, but may be a structure using rotational engagement such as bayonet engagement. The present invention may be applied to a cap that is attached / detached not by rotational engagement but by insertion / removal. You may apply to the cap which does not have the outer wall part 27 but comprises the outer cylinder part 29 only by the cap side screwing cylinder part 22. FIG. You may apply to the cap which does not have the outer shell part 23 but comprises the inner cylinder part 28 only by the measurement part 21. FIG.
And the structure in the said embodiment is an example of this invention, A various change is possible in the range which does not deviate from the summary of the said invention.

2 Container body 3 Mouth 20, 120, 220 Measuring cap (cap)
21a Lid part 22 Cap side screwing cylinder part (rotating engagement part)
24 Cap side flange (flange)
27 Outer wall portion 28 Inner tube portion 29 Outer tube portion 29a Outer peripheral surface 29c Recess C1 Center axis (cap axis)
H Flat surface (same surface)

Claims (7)

In the structure of the cap detachably attached to the mouth of the container body,
A covered cylindrical inner cylinder,
A flange portion formed on the outer periphery of the inner cylinder portion;
An outer cylinder part disposed on the outer periphery of the inner cylinder part via the flange part,
The said outer cylinder part forms the outer peripheral surface which expands toward the cover part side of the said inner cylinder part, The cap structure characterized by the above-mentioned.   The outer cylinder part extends to the lid part side from the flange part and covers the outer peripheral side of the inner cylinder part, and extends to the cap opening side opposite to the lid part from the flange part. The cap structure according to claim 1, further comprising a rotation engagement portion that is rotationally engaged with the mouth portion.   3. The cap structure according to claim 1, wherein an outer peripheral surface of the outer cylinder portion is a concave curved surface that is curved with respect to a cap axis.   The cap structure according to any one of claims 1 to 3, wherein the outer peripheral surface of the outer cylinder part partially forms a recess in the circumferential direction of the cap.   5. The cap structure according to claim 1, wherein an end portion of the outer cylinder portion on the lid portion side is formed on the same surface.   The cap structure according to any one of claims 1 to 5, wherein an end portion of the outer cylinder portion on the lid portion side is located at a position lower than the lid portion.   The cap structure according to any one of claims 1 to 6, wherein the cap structure is made of a resin satisfying a flexural modulus of 1000 MPa.

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