JP2012030821A - Hinge cap - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hinge cap that prevents its upper lid from being twisted or displaced when opened or closed and that is correctly guided and closed.SOLUTION: In the hinge cap including a cap body A fitted over the mouth cylindrical portion of a container, and an upper lid B integrally formed on the cap body via a hinge C, the cap body includes: an engaging cylindrical portion 1, and a spout cylinder 2 connected to the inside of the engaging cylindrical portion. The engaging cylindrical portion includes: an upper wall 3; an outer cylinder extending downward from the outer peripheral edge of the upper wall; and a lid engaging portion extending upward from the upper part of the upper wall so as to engage with the upper lid. The lid engaging portion has an engaging piece on its upper face on the hinge side. The upper lid includes: a top wall; and a peripheral wall 21 extending downward from the peripheral edge of the top wall and provided with a hinge in a predetermined part of the peripheral lower end. The internal circumference of the peripheral wall includes: a diameter-expanded engaging portion 24 at its lower end; other internal circumferential portion 25; and a guide portion provide on the hinge side of the internal circumferential portion. The engaging piece of the cap body and the guide portion of the upper lid engage, thereby guiding the opening/closing of the upper lid.

Description

  The present invention relates to a hinge cap, and more particularly to a hinge cap that prevents the upper lid from shifting when the upper lid is opened and closed.

  2. Description of the Related Art As a hinge cap, a hinge cap in which a cap plugged into a mouth tube portion of a container is easily separated and discarded after use is conventionally known.

  Also known in the art is a hinge cap that pulls the top lid to deform the cap, deforms a part of the cap body via the hinge, and weakens the engagement between the cap body and the container mouth tube and removes it. (For example, refer to Patent Document 1).

JP 2008-213924 A

However, in the hinge cap described in Patent Document 1, the cylindrical side wall (6) of the cap body (1) is between the inner side wall (6a) that engages with the container and the outer side wall (6b) that connects the hinge. When the upper lid (2) is rotated through the hinge to close the lid, the force concentrates on the hinge on the outer side wall. There is a case where the position of the upper lid is displaced and the position of the upper lid is displaced, and the lid cannot be closed.
Further, since the position of the upper lid is displaced, there is a problem that force is applied to the hinge when it is forced to open and close, and depending on the material and shape of the hinge, the hinge is cut off, making it impossible to separate and discard.
Furthermore, if the lid is forcibly opened and closed with the upper lid displaced, the pour cylinder of the cap body and the sealing ring of the upper lid may hit, resulting in damage to the pour cylinder and the sealing ring, thereby impairing the airtightness.

  It is an object of the present invention to provide a hinge cap that can be accurately guided and closed by preventing the upper cover from being twisted and displaced when the upper cover is opened and closed. .

  In order to solve the above-mentioned problems, the present invention provides a hinge cap comprising a cap body that is plugged into a mouth tube portion of a container and an upper lid that is integrally formed with the cap body via a hinge. The main body includes an engagement tube portion and an extraction tube continuously provided on the inner side of the engagement tube portion. The engagement tube portion includes an upper wall and an outer tube suspended from the outer peripheral edge of the upper wall. And a lid engaging portion that is erected on the upper wall and engages with the upper lid, and an engagement piece is erected on the hinge side of the upper surface of the lid engaging portion, Is provided with a top wall and an outer peripheral wall that is suspended from the peripheral edge of the top wall and has a hinge continuously provided at a predetermined position on the lower end of the outer periphery. It has a joint part, other inner peripheral surface part, and a guide part provided on the hinge side of the inner peripheral surface part, and the engaging piece of the cap body and the guide part of the upper lid are engaged. , To adopt a configuration which is characterized in that so as to guide the opening and closing of the upper cover.

  As an embodiment of the cap body engaging piece and the upper lid guide part, the cap body engaging piece is formed with a certain width from the center of the hinge to both sides, and has an arcuate upper surface and outer surface, and both ends. The guide part of the upper lid has a notch on the inner peripheral surface part, a notch part that engages with the engagement piece, and a guide that protrudes inwardly on both side ends of the notch part on the inner peripheral surface part. A piece is provided, and the cutout portion includes an upper surface, a side peripheral surface, and an inner surface of the guide piece, and includes guide surfaces that contact and guide outer end surfaces of both ends of the engagement piece. The configuration is adopted.

  As another embodiment of the engaging piece and the guide part of the upper lid, the engaging piece of the cap body is erected at a certain distance from the center of the hinge on both sides, and both engaging pieces are arc-shaped. The upper lid has an inner end surface on the hinge side and an outer end surface on the opposite side, and the guide portion of the upper lid projects inwardly with the hinge as the center, and both side surfaces engage with both the cap body. Guide protrusions inserted between the inner end surfaces of the pieces, and two cutout portions that engage with the two engagement pieces are provided on both sides of the guide protrusion pieces. A configuration is adopted in which a side circumferential surface and both side surfaces of the guide projection piece are provided, and a guide surface is provided that abuts and guides the inner end surfaces of the two engagement pieces.

  As another embodiment of the cap body, an outer peripheral wall portion is continuously provided at a certain interval around the outer cylinder outer periphery of the engaging cylinder portion, and the lower end inner periphery of the outer peripheral wall portion and the lower end outer periphery of the outer cylinder are opposite to the hinge. Are connected via a connecting piece provided on the side and a plurality of breakable weakening pieces arranged at intervals, and a hinge is provided continuously at a predetermined position on the outer periphery of the upper end of the outer peripheral wall. The structure characterized by this is adopted.

  In the hinge cap, the engagement piece standing on the hinge side of the lid engaging portion of the cap body and the guide portion provided on the hinge side of the inner peripheral surface portion of the upper lid are engaged to guide the opening and closing of the upper lid. Therefore, when the upper lid is opened and closed, the upper lid can be prevented from shifting, and the upper lid can be opened and closed accurately.

It is a perspective view of the hinge cap of 1st Example of this invention. It is explanatory drawing of the hinge cap at the time of lid opening, (a) is a top view, (b) is sectional drawing. It is explanatory drawing of the principal part by the side of the hinge at the time of closing, (a) is in the middle of closing, (b) is a side view at the time of closing. It is a perspective view of the hinge cap of 2nd Example. It is explanatory drawing of the hinge cap at the time of lid opening, (a) is a top view, (b) is sectional drawing. It is explanatory drawing of the principal part by the side of the hinge at the time of closing, (a) is in the middle of closing, (b) is a side view at the time of closing.

  Next, examples of the hinge cap of the present invention will be described with reference to the drawings.

  In FIGS. 1 and 2, A is a cap body that is plugged into the container mouth cylinder, and B is an upper lid that is integrally formed with the cap body A via a hinge C.

  The cap main body A includes an engagement cylinder portion 1 and a dispensing cylinder 2 that is continuously provided inside the engagement cylinder portion 1.

  The engagement cylinder portion 1 includes a ring-shaped upper wall 3, an inner cylinder 4 suspended from the lower surface of the inner peripheral edge of the upper wall 3, an outer cylinder 5 continuously provided on the outer peripheral edge of the upper wall 3, and an upper wall 3, and includes a lid engaging portion 6 that engages with the upper lid B.

On the outer periphery of the outer cylinder 5, an outer peripheral wall portion 7 is continuously provided at a constant interval.
The inner periphery of the lower end of the outer peripheral wall portion 7 and the outer periphery of the lower end of the outer cylinder 5 are connected via a connecting piece 8 provided on the opposite side of the hinge C and a plurality of breakable weakening pieces 9 arranged at intervals. A hinge C is continuously provided at a predetermined position on the outer periphery of the upper end of the outer peripheral wall 7.

  The dispensing tube 2 is connected to the inner tube 4 of the engaging tube portion 1 and has a bottom wall 10 at the lower end. The bottom wall 10 has a thin weakened portion for opening the spout. The removal part 11 partitioned by is provided, and a pull ring 12 is connected to the removal part 11 via a support column.

  Engagement ridges 13 that engage with the outer periphery of the mouth tube portion of the container are provided on the inner periphery of the outer tube 5. Thus, the cap body A is attached to the mouth tube portion of the container so as to sandwich the mouth tube portion of the container.

  The lid engaging portion 6 has a bulging portion 15 protruding from the periphery of the upper end portion of the outer peripheral surface 14, and an engaging piece 17 standing on the hinge C side of the upper surface 16.

  The engaging piece 17 is formed on the hinge C side with a certain width from the center of the hinge to both sides, and includes an arcuate upper surface 17a, an outer surface 17b, and outer end surfaces 17c at both ends.

As shown in FIGS. 1 and 2, the upper lid B includes a top wall 20 and an outer peripheral wall 21 that is suspended from the periphery of the top wall 20 and has a hinge C continuously provided at a predetermined position at the lower end of the outer periphery. A sealing ring 22 that is inserted into the inner periphery of the dispensing cylinder 2 of the cap body A is suspended from the lower surface of the top wall 20.
On the opposite side of the outer peripheral lower end of the outer peripheral wall 21 from the hinge C, a knob 23 projects.

  On the inner periphery of the outer peripheral wall 21, an engaging portion 24 whose diameter is expanded at the lower end portion, another inner peripheral surface portion 25, and a guide portion 26 provided on the hinge C side of the inner peripheral surface portion 25 are formed. .

  The engaging portion 24 is formed with a side peripheral surface 24 a that engages with the outer periphery of the bulging portion 15 of the lid engaging portion 6 of the engaging cylinder portion 1 of the cap body A, and an upper surface 24 b that engages with the upper surface 16. At the lower end of the peripheral surface 24a, an engagement protrusion 27 is provided that engages the lower side of the bulging portion 15 of the lid engaging portion 6 of the cap body A with the upper side.

  The guide portion 26 is cut out from a part of the upper surface 24b, and a notch portion 28 that engages with the engagement piece 17 and a guide piece 29 that protrudes inwardly at both ends of the notch portion 28 of the inner peripheral surface portion 25. It is made up of.

  The cutout portion 28 includes an upper surface 28 a, a side peripheral surface 28 b, and an inner surface of the guide piece 29, and a guide surface 28 c that contacts and guides the outer end surfaces 17 c at both ends of the engagement piece 17.

Next, the effect of the hinge cap of a present Example is demonstrated.
When the upper lid B is rotated around the hinge C as a fulcrum from the opened state, first, as shown in FIG. 3 (a), the inside of the two guide pieces 29 of the guide portion 26 of the outer peripheral wall 21 of the upper lid B On the other hand, the engaging piece 17 of the lid engaging portion 6 of the cap body A is inserted, and the guide surfaces 28c of both guide pieces 29 are slid and guided while being in contact with both outer end surfaces 17c of the engaging piece 17. .

  When the rotation of the upper lid B proceeds, both outer end surfaces 17c of the engagement piece 17 slide on both guide surfaces 28c on the notch portion 28 side of the guide portion 26, and the inside of the upper portion of the extraction cylinder 2 of the cap body A On the other hand, the tip of the sealing ring 22 of the upper lid B is inserted, and the dispensing tube 2 and the sealing ring 22 are engaged.

  Finally, as shown in FIG. 3 (b), the side peripheral surface 28b of the notch 28 and the outer surface 17b of the engagement piece 17, and the upper surface 28a and the upper surface 17a come into contact with each other. The outer periphery of the joining portion 6 and the side peripheral surface 24a of the engaging portion 24 of the upper lid B are engaged, and the upper surface 16 of the lid engaging portion 6 and the upper surface 24b of the engaging portion 24 are in contact with each other, and the rotation is stopped. , Closed and sealed.

In the hinge cap of the present embodiment, when the upper lid B is closed, the inside of both guide pieces 29 of the guide portion 26 of the upper lid B and the guide surface 28c of the notch portion 28 are connected to the lid engaging portion 6 of the cap body A. The engagement piece 17 is engaged, and the closing lid is guided from the middle.
By guiding the closing lid, it is possible to prevent the upper lid B from being displaced during the rotation of the closing lid, and it is possible to stably close the lid.

  When the lid is opened, contrary to when the lid is closed, the inside of both guide pieces 29 of the upper lid B engages with the engaging piece 17 of the cap body A, and the lid can be guided halfway.

When the cap is separated, when the upper lid B is lifted, the outer cylinder 5 of the outer peripheral wall 7 of the cap body A is pulled via the hinge C, and is connected to the outer cylinder 5 of the engaging cylinder 1. The weakened piece 9 is cut from the hinge C side, and the outer cylinder 5 is connected to the outer cylinder 5 only by the connecting piece 8.
When further pulled, the opposite side of the hinge C of the outer cylinder 5 is pulled and deformed via the connecting piece 8, and the engagement between the cap body A and the container is weakened. Finally, the hinge cap can be removed from the container. .

Next, a second embodiment in which the configurations of the lid engaging portion of the cap body and the cutout portion of the outer peripheral wall of the upper lid according to the first embodiment are described.
In the present embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, description thereof is omitted, and differences will be mainly described.

  4 and 5, Aa is a cap body that is plugged into a container, and Ba is an upper lid that is integrally formed with the cap body Aa via a hinge C.

  The cap main body Aa includes an engagement cylinder portion 1 and an extraction cylinder 2 that is provided continuously inside the engagement cylinder portion 1.

  The engaging cylinder portion 1 includes a ring-shaped upper wall 3 and a lid engaging portion 6 that is erected on the upper portion of the upper wall 3 and engages with the upper lid Ba.

  Two engaging pieces 30 are erected on the hinge C side of the upper surface 16 of the lid engaging portion 6 with a certain distance from the center to both sides.

  Both engaging pieces 30 include an arcuate upper surface 30a and an outer surface 30b, an inner end surface 30c on the hinge C side, and an outer end surface 30d on the opposite side.

  The upper lid Ba includes a top wall 20 and an outer peripheral wall 21 that is suspended from the periphery of the top wall 20 and has a hinge C continuously provided at a predetermined position on the lower end of the outer periphery. A sealing ring 22 that is inserted into the inner periphery of the dispensing cylinder 2 of the main body Aa is provided vertically.

  On the inner periphery of the outer peripheral wall 21, there are formed an engaging portion 35 whose diameter is expanded at the lower end, another inner peripheral surface portion 25, and a guide portion 36 provided on the hinge C side of the inner peripheral surface portion 25. .

  The engaging portion 35 is formed with a side peripheral surface 35a that engages with the outer periphery of the lid engaging portion 6 of the cap body Aa and an upper surface 35b that engages with the upper surface 16.

  The guide portion 36 protrudes inward with the hinge C as a center, and both side surfaces of the guide portion 36 are inserted between the inner end surfaces 30c of the engagement pieces 30 of the lid engagement portion 6 of the cap body Aa. On both sides of the guide protrusion 37, two cutout portions 38 are provided so as to extend upward from a part of the upper surface 35b and engage with one of the two engagement pieces 30.

  Both of the notch portions 38 are an upper surface 38 a, a side peripheral surface 38 b, a guide surface 38 c continuous with both side surfaces of the inner end guide protrusion 37, and a side that engages with the outer end surface 30 d of the outer end engagement piece 30. And an end face 38d.

Next, the effect of the hinge cap of a present Example is demonstrated.
When the upper lid Ba is rotated around the hinge C as a fulcrum from the opened state, first, as shown in FIG. 6A, the guide protrusion 37 of the guide portion 36 of the outer peripheral wall 21 of the upper lid Ba is moved to the cap. It is inserted between the inner end surfaces 30c of both engaging pieces 30 of the lid engaging portion 6 of the main body Aa, and slides while both guide surfaces 38c of the guide protrusions 37 abut on the inner end surfaces 30c of the engaging pieces 30. And be guided.

  As the rotation of the upper lid Ba proceeds, the guide protrusion 37 is guided to the inner end face 30c of the engagement piece 30, and the tip of the sealing ring 22 of the upper lid Ba is inserted into the upper part of the dispensing cylinder 2 of the cap body A, The dispensing cylinder 2 and the sealing ring 22 are engaged.

  Finally, as shown in FIG. 6 (b), the side peripheral surface 38b of both notches 38, the outer surface 30b of both engaging pieces 30, the upper surface 38a and the upper surface 30a, and the side end surface 38d and the outer end surface 30d. And the outer periphery of the lid engaging portion 6 of the cap main body Aa and the side peripheral surface 35a of the engaging portion 35 of the upper lid Ba are engaged, and the upper surface 16 of the lid engaging portion 6 and the engaging portion 35 are The upper surface 35b abuts, the rotation is stopped, and the lid is closed and sealed.

In the hinge cap of the present embodiment, when the upper lid Ba is closed, the guide protrusions 37 of the guide portion 36 of the upper lid Ba are connected to the inner end faces 30c of the engagement pieces 30 of both the lid engaging portions 6 of the cap body Aa. And the lid is guided from the middle.
By guiding the closing lid, it is possible to prevent the upper lid Ba from being displaced during the rotation of the closing lid, and it is possible to stably close the lid.

  When the lid is opened, the guide protrusion 37 of the upper lid Ba engages between the inner end surfaces 30c of both the engagement pieces 30 of the cap body A, and guides the opening halfway, as opposed to when the lid is closed. can do.

  In each of the above embodiments, the outer peripheral wall portion of the cap body is connected to the outer periphery of the outer tube of the engaging tube portion at a constant interval, and is formed into a double tube shape in which a hinge is continuously connected to a predetermined position on the upper end outer periphery. In the present invention, it is only necessary to be guided when the upper lid is opened and closed, to prevent the upper lid from being displaced and to prevent the hinge from being damaged, so that the outer peripheral wall portion is directly connected to a predetermined position on the outer periphery of the upper end of the outer cylinder. The shape of the single cylinder shape to provide may be sufficient, and the shape of the engagement cylinder part and outer peripheral wall part of a cap main body is not limited to the form of said each Example.

  INDUSTRIAL APPLICABILITY The present invention can be widely used as a hinge cap for various containers because the hinge cap can be guided during opening and closing to prevent the upper lid from shifting and prevent the hinge from being damaged.

A, Aa Cap body B, Ba Top lid C Hinge 1 Engagement cylinder part 2 Extraction cylinder 3 Upper wall 4 Inner cylinder 5 Outer cylinder 6 Lid engagement part 7 Outer peripheral wall part 8 Connection piece 9 Weaking piece 10 Bottom wall 11 Removal part 12 Pull ring 13 Engagement ridge 14 Outer peripheral surface 15 Swelling portion 16, 17a, 30a Upper surface 17, 30 Engagement piece 17b, 30b Outer side surface 17c, 30d Outer end surface 20 Top wall 21 Outer wall 22 Sealing ring 23 Knob 24, 35 Engagement part 24a, 28b, 35a, 38b Side peripheral surface 24b, 28a, 35b, 38a Upper surface 25 Inner peripheral surface part 26, 36 Guide part
27 Engagement projections 28, 38 Notch 28c, 38c Guide surface 29 Guide piece 30c Inner end surface 37 Guide projection piece 38d Side end surface

Claims (4)

In a hinge cap comprising a cap body that is plugged into the mouth tube portion of the container, and an upper lid that is integrally formed with the cap body via a hinge,
The cap body includes an engagement tube portion and an extraction tube continuously provided inside the engagement tube portion,
The engagement tube portion includes an upper wall, an outer tube suspended from the outer peripheral edge of the upper wall, and a lid engagement portion that is erected on the upper portion of the upper wall and engages with the upper cover.
In the lid engaging portion, an engaging piece is erected on the hinge side of the upper surface,
The upper lid includes a top wall and an outer peripheral wall that is suspended from the periphery of the top wall and has a hinge continuously provided at a predetermined position on the lower end of the outer periphery.
The inner periphery of the outer peripheral wall includes an engaging portion that is expanded in the lower end portion, another inner peripheral surface portion, and a guide portion provided on the hinge side of the inner peripheral surface portion,
A hinge cap characterized in that the engagement piece of the cap body and the guide part of the upper lid are engaged to guide the opening and closing of the upper lid. The engaging piece of the cap body is formed with a certain width on both sides from the center of the hinge, and includes an arcuate upper surface and an outer surface, and outer end surfaces at both ends.
The guide portion of the upper lid is provided with notches on the inner peripheral surface portion, notch portions that engage with the engaging pieces, and guide pieces projecting inward on both side ends of the notched portions on the inner peripheral surface portion,
The cutout portion includes an upper surface, a side peripheral surface, and an inner surface of the guide piece, and includes guide surfaces that contact and guide outer end surfaces at both ends of the engagement piece. The hinge cap as described. The engaging piece of the cap body is erected at a certain distance from the center of the hinge on both sides,
Both engagement pieces have an arcuate upper surface and an outer surface, an inner end surface on the hinge side, and an outer end surface on the opposite side,
The guide portion of the upper lid projects inwardly about the hinge, and both side surfaces are inserted between the inner end surfaces of both engaging pieces of the cap body, There are two notches that engage with one engagement piece,
Both the notch portions are connected to the upper surface, the side peripheral surface, and both side surfaces of the guide projection piece, and are provided with a guide surface that contacts and guides the inner end surfaces of the two engagement pieces. The hinge cap according to claim 1. An outer peripheral wall portion is continuously provided at a constant interval on the outer cylinder outer periphery of the engaging cylinder portion,
The inner periphery of the lower end of the outer peripheral wall portion and the outer periphery of the lower end of the outer cylinder are connected to each other via a connecting piece provided on the opposite side of the hinge and a plurality of breakable weakening pieces arranged at intervals. The hinge cap according to any one of claims 1 to 3, wherein a hinge is continuously provided at a predetermined position on the outer periphery of the upper end of the outer peripheral wall portion.

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