JP7250607B2 - cap - Google Patents

Description

The present invention relates to caps.

Patent Literature 1 discloses a cap including a fixing portion fixed to a container body in which contents are stored, and a topped cylindrical lid. The fixed portion is formed with a plug connected to the fixed portion via a thin weakened portion. In this cap, when the lid body is rotated about the container axis with respect to the fixed part, the lid body and the plug body are integrally rotated with respect to the fixed part, the weakened part is broken, and the container is held. It is configured so that it can be opened.

JP 2015-221690 A

In the configuration of Patent Document 1, even after the weakened portion is broken, the lid can be rotated around the container axis without restriction with respect to the fixed portion. For this reason, it may be difficult for the user to recognize how much the lid needs to be rotated around the container axis to open the container, and there is room for improvement in the operability at the time of opening.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a cap capable of improving operability when unsealing.

In order to solve the above-mentioned problems, a cap according to a first aspect of the present invention includes a fixing portion fixed to the mouth portion of a container body in which contents are stored, and a cap rotatable around a hinge on the fixing portion. and a capped tubular cover provided rotatably around the axis of the container with respect to the connecting portion, wherein the fixing portion is an intermediate plate portion that closes the mouth portion. and an inner plug portion connected to the intermediate plate portion via a weakened portion, wherein the connecting portion is formed with a regulation hole portion extending along the circumferential direction, and the lid of the inner plug portion Rotation of the container about the axis of the container with respect to the body is regulated, and the top wall of the lid body is formed with a regulating convex portion extending downward and inserted into the regulating hole portion in a first direction along the circumferential direction. A gap in the circumferential direction is formed between the end portion of the regulation convex portion in and the end portion of the regulation hole portion in the first direction.

According to the first aspect, since rotation of the inner plug portion about the container axis with respect to the lid is restricted, when the lid is rotated about the container axis with respect to the fixed portion, the lid and the inner The plug portion rotates integrally with respect to the fixed portion. As a result, the container can be opened by breaking the weakened portion connecting the inner plug portion and the intermediate plate portion.
Further, the restricting protrusion formed on the lid is inserted into the restricting hole of the connecting part, and is between the end of the restricting protrusion in the first direction and the end of the restricting hole in the first direction. has a circumferential gap. Therefore, the lid body can be rotated in the first direction within the range of the gap, and the lid body can be rotated by a predetermined amount so that the end portion of the restricting convex portion in the first direction and the restricting hole portion are separated from each other. When the ends in the first direction come into contact with each other, further rotation of the lid is restricted. Therefore, since the lid cannot rotate in the first direction, the user can recognize that the container has been opened, and the operability at the time of opening can be improved.

A cap according to a second aspect of the present invention includes a fixing portion fixed to the mouth portion of a container body in which contents are contained, and a fixing portion provided to be rotatable about the container axis with respect to the fixing portion. and a capped cylindrical lid body that is rotatably connected to the connecting part around a hinge, and the fixing part is connected via a middle plate part that closes the mouth part and a weakened part. and an inner plug portion connected to the intermediate plate portion by means of which rotation of the inner plug portion with respect to the lid body around the container axis is regulated, and a top wall of the lid body has a downwardly directed The fixed portion is provided with a restricting portion that is spaced apart from the restricting protrusion in the circumferential direction.

According to the second aspect, since rotation of the inner plug portion about the container axis with respect to the lid is restricted, when the lid is rotated about the container axis with respect to the fixed portion, the lid and the inner The plug portion rotates integrally with respect to the fixed portion. As a result, the container can be opened by breaking the weakened portion connecting the inner plug portion and the intermediate plate portion.
In addition, the top wall of the lid is formed with a restricting convex portion extending downward, and the fixed portion is provided with a restricting portion that is spaced apart from the restricting convex portion in the circumferential direction. . With this configuration, the rotation of the lid over the gap is restricted, and the user can recognize that the container has been opened by restricting the rotation of the lid. Therefore, it is possible to improve the operability when opening the container.

Here, in the above-described first aspect, even if the lid is formed with a second restricting projection that can climb over the first restricting projection formed on the connecting portion in a first direction along the circumferential direction. good.

In this case, the lid body is rotated in the first direction to open the container, and after the second restricting protrusions have overcome the first restricting protrusions in the first direction, the lid body is rotated in the opposite direction to the first direction. Unexpected rotation in the direction (second direction) can be suppressed.

Further, in the second aspect, the connecting portion may be formed with a second restricting protrusion capable of getting over the first restricting protrusion formed on the fixing portion in a first direction along the circumferential direction. .

In this case, the lid body is rotated in the first direction to open the container, and after the second restricting protrusions have crossed over the first restricting protrusions in the first direction, the lid body is unexpectedly rotated in the second direction. You can prevent it from moving.

Further, the first restricting projection has a first inclined surface extending radially outward gradually in the first direction and a first restricting surface extending radially in a plan view, and the second The restricting protrusion may have, in plan view, a second inclined surface that gradually extends outward in the radial direction in the first direction, and a second restricting surface that extends in the radial direction.

In this case, when the lid body is rotated in the first direction, the first slanted surface and the second slanted surface slide, so that the second restricting protrusion can smoothly climb over the first restricting protrusion. Furthermore, when the lid body is rotated in the second direction after the second restricting protrusion has crossed over the first restricting protrusion in the first direction, the first restricting surface and the second restricting surface abut against each other. Rotation of the lid in the second direction can be restricted.

Further, the first restricting protrusion and the second restricting protrusion may be formed in a curved shape when viewed from the direction along the container axis.

In this case, after the lid is rotated in the first direction to open the container, the lid is rotated in the second direction, thereby overcoming the second restricting projection in the second direction with respect to the first restricting projection. The position of the lid body around the container axis can be returned to its original position.

According to the aspect of the present invention, it is possible to provide a cap capable of improving operability when unsealing.

4 is a plan view of the cap according to the first embodiment; FIG. FIG. 2 is a cross-sectional view taken along line II-II in FIG. 1; FIG. 3 is a cross-sectional view taken along line III-III in FIG. 2; FIG. 3 is a cross-sectional view taken along line IV-IV of FIG. 2; It is a figure which shows the state which positioned the cover body of FIG. 1 in the closed position. It is a figure which shows the state which opened the cover of FIG. FIG. 5 is a plan view of a cap according to a modification of the first embodiment; It is a longitudinal cross-sectional view of a cap according to a second embodiment. FIG. 9 is a cross-sectional view taken along line IX-IX in FIG. 8; FIG. 8 is a plan view of a cap according to another modified example of the first embodiment;

(First embodiment)
Hereinafter, the cap of the first embodiment and a container provided with the cap will be described with reference to the drawings.
As shown in FIGS. 1 and 2, the container 1 includes a bottomed cylindrical container body 2 for containing contents, and a cap 3A attached to the container body 2 . The cap 3A includes a fixed portion 10 fixed to the mouth portion 2a of the container body 2, a connecting portion 20 connected to the fixed portion 10 so as to be rotatable around a hinge H, and a container axis O relative to the fixed portion 10. and a capped cylindrical lid body 30 rotatably provided in the body. The contents are not particularly limited, but liquids such as beverages can be used, for example.

(direction definition)
In this embodiment, the central axes of the lid 30 and the container body 2 are arranged on a common axis. In this specification, this common axis is referred to as container axis O, and the direction along container axis O is referred to as the vertical direction. In addition, in the vertical direction, the bottom side of the container body 2 is referred to as the lower side, and the top wall 31 side of the lid 30 is referred to as the upper side. Viewing from above and below is called planar view. In plan view, the direction intersecting the container axis O is called the radial direction, and the direction rotating around the container axis O is called the circumferential direction. Among the radial directions, the direction connecting the circumferential central portion of the hinge H and the circumferential central portion of the knob portion 24 shown in FIG. 1 is referred to as the front-rear direction. The hinge H side in the front-rear direction is referred to as the rear, and the knob 24 side is referred to as the front. One direction in the circumferential direction is called a first direction R1, and the direction opposite to the first direction R1 is called a second direction R2. The cap 3A of the present embodiment is configured such that when the lid body 30 is rotated in the first direction R1 with respect to the fixed portion 10, the weakened portion 11c (described later) is broken.

As shown in FIG. 2, the fixed portion 10 of the cap 3A includes an intermediate plate portion 11 that closes the mouth portion 2a of the container body 2, a fixed tubular portion 12 that surrounds the mouth portion 2a from the radial direction outside, and an inner portion of the mouth portion 2a. and a fitting tube portion 13 fitted to the .
The intermediate plate portion 11 has an outer peripheral portion 11a positioned on the outer peripheral side and an inner peripheral portion 11b positioned radially inward of the outer peripheral portion 11a. The outer peripheral portion 11a contacts the upper end surface of the mouth portion 2a from above. The inner peripheral portion 11b is located above the outer peripheral portion 11a. For this reason, a step is formed in the intermediate plate portion 11 in a vertical cross-sectional view. Note that the intermediate plate portion 11 may be formed in a flat disc shape by aligning the vertical positions of the outer peripheral portion 11a and the inner peripheral portion 11b.

An intermediate plug portion 14 is formed in the radial center portion of the intermediate plate portion 11 . The intermediate plug portion 14 is connected to the intermediate plate portion 11 via a thin weakened portion 11c. By breaking the weakened portion 11c, the inner plug portion 14 is separated from the intermediate plate portion 11 to form a communication hole 11d (see FIG. 6). The inner plug portion 14 has a disk-shaped base portion 14a in plan view and a transition cylinder portion 14b extending upward from the base portion 14a. A weakened portion 11c is provided along the entire circumference of the outer peripheral edge of the base portion 14a. Before the weakened portion 11c is broken, the communication hole 11d is closed, and the flow of air and contents through the communication hole 11d is blocked.

As shown in FIGS. 2 and 3, a plurality of first engaging portions 14c projecting radially outward are formed on the outer peripheral surface of the transition cylinder portion 14b. The plurality of first engaging portions 14c are arranged at intervals in the circumferential direction and extend along the vertical direction.
As shown in FIG. 2, a first holding projection 14d that protrudes radially inward is formed at the upper end portion of the inner peripheral surface of the transition cylinder portion 14b.

The fixed tubular portion 12 extends downward from the outer peripheral edge of the intermediate plate portion 11 . A fitting portion 12 a that protrudes radially inward is formed on the inner peripheral surface of the fixed tubular portion 12 . The fitting portion 12a is undercut-fitted to the protrusion 2b formed on the outer peripheral surface of the mouth portion 2a, thereby restricting the upward movement of the fixed cylindrical portion 12 with respect to the container body 2. As shown in FIG. The fitting tubular portion 13 extends downward from a portion of the intermediate plate portion 11 located radially inward of the fixed tubular portion 12 . Since the fitting cylinder part 13 is fitted inside the mouth part 2a, the gap between the fitting cylinder part 13 and the mouth part 2a is sealed to prevent the contents from leaking out.

Rotation of the fixing portion 10 about the container axis O with respect to the container body 2 is restricted. The restriction may be performed by fitting (press-fitting) the fitting tube portion 13 into the mouth portion 2a, or may be performed by providing a detent portion or the like.

An outer guide portion 15 , an inner guide portion 16 and a lip portion 17 are formed on the upper surface of the intermediate plate portion 11 . The outer guide portion 15 , the inner guide portion 16 and the lip portion 17 protrude upward from the intermediate plate portion 11 .
The outer guide portion 15 has an annular shape in plan view and is positioned radially outward of the lip portion 17 . The upper surface of the outer guide portion 15 is formed with a lightening portion recessed downward. Since the lightening portion of the outer guide portion 15 extends over the entire circumference in the circumferential direction, the outer guide portion 15 has a double tubular shape. The upper end portion of the outer guide portion 15 is formed with a first engaging portion 15a that protrudes radially outward and a first restricting portion 15b that protrudes radially inward. As shown in FIG. 4, two first restricting portions 15b are formed on the inner peripheral surface of the outer guide portion 15 at intervals in the circumferential direction. The two first restricting portions 15b are arranged so as to sandwich the container axis O in the radial direction in plan view. The two first restricting portions 15b are formed only partially in the circumferential direction of the inner peripheral surface of the outer guide portion 15 and do not extend over the entire circumference.

The inner guide portion 16 is located radially inward of the outer guide portion 15 . The inner guide portion 16 is provided at a connection portion between the inner peripheral portion 11 b and the outer peripheral portion 11 a of the intermediate plate portion 11 . As shown in FIG. 4, the inner guide portion 16 is formed in an elliptical (elliptical hole) tubular shape in plan view. More specifically, the inner guide portion 16 has a pair of curved portions 16a and a pair of linear portions 16b. The pair of curved portions 16a are arcuately extending in the circumferential direction and face each other in the front-rear direction. The pair of linear portions 16b are formed in a straight line extending in the front-rear direction, and face each other in a direction perpendicular to both the front-rear direction and the vertical direction.

As shown in FIG. 2 , the lip portion 17 is positioned radially inward of the inner guide portion 16 and radially outward of the inner plug portion 14 . A weakened portion 11 c is arranged at the lower end portion of the inner peripheral surface of the lip portion 17 . Therefore, when the weakened portion 11 c is broken and the inner plug portion 14 is separated from the intermediate plate portion 11 (see FIG. 6), the communication hole 11 d communicates with the inside of the lip portion 17 . The lip portion 17 is formed in a cylindrical shape whose diameter gradually increases upward. The height of the upper end portion of the lip portion 17 is uneven in the circumferential direction, and the portion of the lip portion 17 positioned rearward (on the hinge H side) is higher than the portion positioned forward (on the knob portion 24 side). getting low.

The connection portion 20 has a connection tube portion 21 , an annular portion 22 , a guide tube portion 23 and a knob portion 24 . The connecting tubular portion 21 is formed in a tubular shape extending in the vertical direction, and surrounds the outer guide portion 15 of the fixed portion 10 from the outside in the radial direction. A second engaging portion 21a that protrudes radially inward is formed at the lower end portion of the connecting tubular portion 21 . The second locking portion 21a is formed over the entire circumference of the inner peripheral surface of the connecting tubular portion 21 and is locked to the first locking portion 15a of the outer guide portion 15 from below. By locking the first locking portion 15a and the second locking portion 21a, the upward rotation of the connecting portion 20 about the hinge H with respect to the fixed portion 10 is restricted. In addition, by pinching the knob 24 and moving it upward, the coupling portion 20 can be hinged H with respect to the fixing portion 10 by releasing the locking between the first locking portion 15a and the second locking portion 21a. It can be rotated upwards.

A lower end portion of the outer peripheral surface of the connecting tubular portion 21 and an upper end portion of the outer peripheral surface of the fixed tubular portion 12 are connected by a hinge H. In this embodiment, the fixed portion 10 and the connecting portion 20 are connected by the hinge H and formed integrally, but they may be formed separately.
The annular portion 22 extends radially inward from the upper end portion of the connecting tubular portion 21 and has an annular shape in plan view. A regulation hole portion 22a is formed in the annular portion 22 so as to penetrate the annular portion 22 in the vertical direction.

As shown in FIG. 1, the regulation hole portion 22a is formed in an arcuate shape extending in the circumferential direction. The regulation hole portion 22a does not extend over the entire circumference in the circumferential direction, but is formed in a portion of the annular portion 22 in the circumferential direction. In this embodiment, a plurality (two) of regulation holes 22a are formed at intervals in the circumferential direction. The number of regulation holes 22a can be changed as appropriate, and may be one or three or more. Similarly, the number of restricting protrusions 35, which will be described later, may be one or three or more.
As shown in FIG. 2, the inner peripheral edge 22b of the annular portion 22 is located radially outside the lip portion 17. As shown in FIG. In other words, the annular portion 22 surrounds the lip portion 17 from the radial outside.

The guide tube portion 23 extends upward from the annular portion 22 . The guide tube portion 23 extends upward from the radially outer opening edge of the regulation hole portion 22a. A guide convex portion 23 a is formed on the inner peripheral surface of the upper end portion of the guide tube portion 23 so as to protrude radially inward. The restriction hole portion 22a is formed partially in the circumferential direction, while the guide tube portion 23 is formed over the entire circumference in the circumferential direction. A first restricting protrusion 25 that protrudes radially outward is formed on the outer peripheral surface of the guide tube portion 23 .

As shown in FIG. 1 , a plurality of first restricting protrusions 25 are formed on the outer peripheral surface of the guide tube portion 23 at intervals in the circumferential direction. Each first restricting projection 25 has a first inclined surface 25a and a first restricting surface 25b. In plan view, the first inclined surface 25a is inclined so as to gradually extend radially outward in the first direction R1. The first restricting surface 25b extends substantially radially in plan view.
The knob portion 24 is positioned at the front end portion of the connecting tube portion 21 and protrudes forward from the lower end portion of the connecting tube portion 21 .

As shown in FIG. 2 , the lid body 30 has a top wall 31 , a peripheral wall 32 , an engagement tube portion 33 , a holding portion 34 and a restricting convex portion 35 . The top wall 31 is formed in a disc shape. As shown in FIG. 1, the upper surface of the top wall 31 is formed with a display portion indicating the first direction R1. The display portion can be provided by coloring, engraving, transferring, or attaching a sticker. The display unit allows the user to easily recognize the first direction R1 (the direction in which the weakened portion 11c is to be broken).

As shown in FIG. 2, the peripheral wall 32 extends downward from the outer peripheral edge of the top wall 31 and has a cylindrical shape. The outer peripheral surface of the peripheral wall 32 is knurled to prevent slipping when the lid body 30 is rotated around the container axis O. As shown in FIG. Instead of the knurled shape, a plurality of vertically extending longitudinal ribs or the like provided on the outer peripheral surface of the peripheral wall 32 at intervals in the peripheral direction may be employed.

As shown in FIG. 2 , the engaging tube portion 33 , the holding portion 34 , and the restricting convex portion 35 protrude downward from the lower surface of the top wall 31 . The engaging tube portion 33 and the holding portion 34 protrude downward from the peripheral wall 32 , and the restricting convex portion 35 protrudes further downward than the engaging tube portion 33 and the holding portion 34 . The engagement tube portion 33 is formed in a tubular shape extending in the vertical direction. The outer peripheral surface of the engaging cylinder portion 33 is in contact with the inner peripheral surface of the lip portion 17 . Therefore, even when the inner plug portion 14 is separated from the intermediate plate portion 11 and the communication hole 11d is opened, the inside of the lip portion 17 can be closed as long as the lid body 30 is closed.

The engagement tubular portion 33 surrounds the transition tubular portion 14b of the inner plug portion 14 from the radially outer side. As shown in FIG. 3 , a plurality of second engaging portions 33 a that protrude radially inward are formed on the inner peripheral surface of the engaging cylinder portion 33 . The plurality of second engaging portions 33a are arranged at intervals in the circumferential direction and extend in the vertical direction. The first engaging portion 14c of the inner plug portion 14 is positioned between the second engaging portions 33a adjacent in the circumferential direction. A second engaging portion 33a is positioned between the first engaging portions 14c adjacent in the circumferential direction. In other words, the first engaging portions 14c and the second engaging portions 33a are alternately arranged in the circumferential direction. With this configuration, the relative rotation of the inner plug portion 14 and the lid body 30 around the container axis O is restricted.

As shown in FIG. 2 , the holding portion 34 extends downward from the radially central portion of the top wall 31 . The holding portion 34 is formed in a substantially columnar shape coaxial with the container axis O. As shown in FIG. A lightening portion recessed upward is formed in a radial center portion of the lower end portion of the holding portion 34 . A lower end portion of the holding portion 34 is inserted inside the transition cylinder portion 14 b of the inner plug portion 14 . A second holding protrusion 34a that protrudes radially outward is formed on the lower end portion of the outer peripheral surface of the holding portion 34 . The second holding projection 34a is located below the first holding projection 14d of the inner plug portion 14. As shown in FIG.

The restricting convex portion 35 is located radially outside the lip portion 17 and radially inside the guide tube portion 23 . As shown in FIG. 1, a plurality of (two) restricting protrusions 35 are provided at intervals in the circumferential direction. The two restricting protrusions 35 are arranged so as to sandwich the container axis O therebetween in plan view. Each restricting protrusion 35 extends along the circumferential direction. The radial width of the restricting convex portion 35 is smaller than the radial width of the restricting hole portion 22a, and the circumferential length of the restricting convex portion 35 is shorter than the circumferential length of the restricting hole portion 22a. A gap in the circumferential direction is formed between the end portion of the restricting convex portion 35 in the first direction R1 and the end portion of the restricting hole portion 22a in the first direction R1. Although the angle θ of the gap is approximately 90° in this embodiment, the angle can be changed as appropriate.

As shown in FIG. 2, the restricting convex portion 35 is inserted into the restricting hole portion 22a from above. A lower end portion of the restriction convex portion 35 is positioned between the inner guide portion 16 and the outer guide portion 15 .
A longitudinal rib 35a, a second restricting portion 35b, and a sliding protrusion 35c are formed on each restricting convex portion 35. As shown in FIG. The vertical rib 35a protrudes radially inward from the inner peripheral surface of the restricting convex portion 35 and extends along the vertical direction. The vertical rib 35a is formed from the upper end portion of the restricting protrusion 35 to the middle portion in the vertical direction, and contacts or contacts the portion of the annular portion 22 between the restricting hole portion 22a and the inner peripheral edge 22b from above. Close proximity.

The second restricting portion 35 b protrudes radially outward from the outer peripheral surface of the lower end portion of the restricting convex portion 35 . The second restricting portion 35b faces the first restricting portion 15b in the vertical direction.
The sliding protrusion 35c protrudes radially outward from the outer peripheral surface of the intermediate portion of the restricting protrusion 35 in the vertical direction. The sliding projection 35c abuts on or is close to the inner peripheral surface of the guide tube portion 23, and when the lid body 30 rotates about the container axis O with respect to the connecting portion 20, the sliding projection 35c and the guide cylinder 23 rotate. The cylindrical portion 23 slides on each other to guide the rotation of the lid 30 . The sliding protrusion 35c vertically faces the guide protrusion 23a. Moreover, the peripheral wall 32 of the lid 30 faces the annular portion 22 of the connecting portion 20 in the vertical direction. This configuration restricts the vertical movement of the lid 30 with respect to the connecting portion 20 .

A second restricting projection 36 that protrudes radially inward is formed on the inner peripheral surface of the peripheral wall 32 . As shown in FIG. 1, a plurality of second restricting protrusions 36 are formed on the inner peripheral surface of the peripheral wall 32 at intervals in the peripheral direction. Each second restricting projection 36 has a second inclined surface 36a and a second restricting surface 36b. The second inclined surface 36a is inclined radially outward gradually toward the first direction R1 in plan view. The second restricting surface 36b extends substantially radially in plan view. The number of the first restricting protrusions 25 and the number of the second restricting protrusions 36 are equal to each other, and three of each are formed in this embodiment.

Next, the operation of the cap 3A configured as above will be described.

Before the start of use, the container 1 is sealed by closing the communication hole 11d (see FIG. 6) of the intermediate plate portion 11 with the intermediate plug portion 14 and the weakened portion 11c (see FIG. 2). From this state, when the lid body 30 is rotated in the first direction R1 with respect to the fixing portion 10 and the connecting portion 20, the first engaging portion 14c and the second engaging portion 33a are engaged with each other, and the inner plug is opened. The rotational force directed in the first direction R1 is also transmitted to the portion 14 . This rotational force acts on the weakened portion 11c positioned between the inner plug portion 14 and the intermediate plate portion 11, breaking the weakened portion 11c. As a result, the intermediate plug portion 14 is separated from the intermediate plate portion 11 . The separated inner plug portion 14 is held by the holding portion 34 of the lid 30 by engaging the first holding projection 14d with the second holding projection 34a. With this configuration, when the inner plug portion 14 is separated from the intermediate plate portion 11, the inner plug portion 14 is held by the lower end portion of the holding portion 34, so that the inner plug portion 14 does not drop into the container body 2, for example. is suppressed.

As shown in FIG. 1, the lid body 30 is rotatable in the first direction R1 with respect to the connecting portion 20 within the range of the angle θ. When the lid body 30 is rotated in the first direction R1 by a predetermined amount, the first inclined surface 25a and the second inclined surface 36a shown in FIG. Override in direction R1 (see FIG. 5). When the lid body 30 is to be rotated in the second direction R2 with respect to the fixed portion 10 from the state shown in FIG. 5, the first restricting surface 25b and the second restricting surface 36b come into contact with each other. Therefore, the rotation of the lid 30 in the second direction R2 is restricted.

Further, when it is attempted to further rotate the lid body 30 in the first direction R1 with respect to the fixed portion 10, the end portion of the restriction convex portion 35 on the first direction R1 side and the first direction R1 side of the restriction hole portion 22a and the inner surface at the end of the side abut. Therefore, rotation of the lid 30 in the first direction R1 exceeding the angle θ is restricted. In this way, the rotation in the first direction R1 is restricted by the restricting convex portion 35 and the restricting hole portion 22a, and the rotation in the second direction R2 is performed by the first restricting projections 25 and the second restricting projections 36. The position of the lid body 30 when is regulated is referred to as an "open position" in the present embodiment. Further, as shown in FIG. 2, the first restricting portion 15b and the second restricting portion 35b face each other in the vertical direction, and the lid 30 rotates upward about the hinge H with respect to the fixed portion 10 and the connecting portion 20. The position of the lid body 30 when is regulated is called a "closed position".

The position of the restricting convex portion 35 indicated by the dashed line in FIG. 4 indicates the position of the restricting convex portion 35 in the state of FIG. 5, that is, when the lid body 30 is in the open position. As shown in FIG. 4, when the lid body 30 is positioned at the open position, the restricting convex portion 35 and the first restricting portion 15b are separated in the circumferential direction. Therefore, the restriction on rotation of the lid 30 around the hinge H due to the engagement of the first restriction portion 15b and the second restriction portion 35b is released, and the lid 30 can be rotated upward. . Therefore, the user can rotate the lid body 30 together with the connecting part 20 upward around the hinge H as shown in FIG.

In the state shown in FIG. 6 , the sliding protrusion 35 c is engaged with the guide protrusion 23 a, so that the lid 30 is prevented from coming off from the connecting portion 20 .
By tilting the container 1 or squeezing the container body 2 from the state shown in FIG.

As described above, the cap 3A of the present embodiment includes the fixing portion 10 fixed to the container body 2, the connecting portion 20 connected to the fixing portion 10 so as to be rotatable about the hinge H, and the fixing portion 10. and a lid body 30 provided to be rotatable about the container axis O. The fixing portion 10 has an intermediate plate portion 11 that closes the mouth portion 2a of the container body 2, and an intermediate plug portion 14 that is connected to the intermediate plate portion 11 via a weakened portion 11c. A regulation hole portion 22a extending in the circumferential direction is formed. The lid 30 is formed with a restricting convex portion 35 inserted into the restricting hole portion 22a to restrict the rotation of the inner plug portion 14 with respect to the lid 30 about the container axis O. As shown in FIG. The lid body 30 is formed with a regulation convex portion 35 inserted into the regulation hole portion 22a. A circumferential gap is formed between the ends. With this configuration, the rotation of the lid 30 exceeding the angle θ of the gap is restricted, and the user can recognize that the container 1 has been opened due to the restricted rotation of the lid 30. can be done. Therefore, the operability when opening the container 1 can be improved.

Further, the lid body 30 is formed with a second restricting protrusion 36 that can climb over the first restricting protrusion 25 formed on the connecting portion 20 in the first direction R1. With this configuration, the lid 30 can be stably positioned at the open position after the lid 30 is moved to the open position.

In addition, in a plan view, the first restricting projection 25 has a first inclined surface 25a extending radially outward gradually in the first direction R1, and a first restricting surface 25b extending radially. The second restricting projection 36 has a second inclined surface 36a extending radially outward gradually in the first direction R1 and a radially extending second restricting surface 36b in plan view. According to this configuration, when the lid body 30 is rotated in the first direction R1, the first slanted surface 25a and the second slanted surface 36a slide, so that the second regulating projection 36 becomes the first regulating projection. 25 can be overcome smoothly. Further, when the lid 30 is positioned at the open position and the lid 30 is rotated in the second direction R2, the first restricting surface 25b and the second restricting surface 36b abut against each other. Rotation in the second direction R2 can be restricted.

Note that the numbers of the first restricting protrusions 25 and the second restricting protrusions 36 can be changed as appropriate. For example, as shown in FIG. 7, even if the number of the first restricting protrusions 25 and the second restricting protrusions 36 is increased to restrict the rotation of the lid body 30 in the second direction R2 at a shorter pitch (angular range). good.
Also, in FIG. 7, the angle θ is 100°. In this way, it is also possible to change the magnitude of the angle θ as appropriate.

(Second embodiment)
Next, a second embodiment according to the present invention will be described, but the basic configuration is the same as that of the first embodiment. For this reason, the same reference numerals are assigned to the same configurations, the description thereof is omitted, and only the points of difference will be described.

As shown in FIG. 8, the cap 3B of this embodiment includes a fixing portion 40, a connecting portion 50, and a lid body 60. As shown in FIG. The fixed portion 40 is fixed to the mouth portion 2 a of the container body 2 . The connecting portion 50 and the lid body 60 are provided so as to be rotatable about the container axis O with respect to the fixed portion 40 . The lid body 60 is formed in a capped tubular shape, and is rotatably provided around the hinge H at the connecting portion 50 .

The fixed portion 40 includes an intermediate plate portion 41 that closes the mouth portion 2a of the container body 2, a fixed tubular portion 42 that surrounds the mouth portion 2a from the radially outer side, and a fitting tubular portion 43 that fits inside the mouth portion 2a. ,have.
A connecting tube portion 41 b extending downward is provided on the outer peripheral edge of the intermediate plate portion 41 . A flange portion 48 extending radially outward is provided at the lower end portion of the connecting tube portion 41b. The flange portion 48 is formed in an annular shape in a plan view, and is in contact with the upper end surface of the mouth portion 2a from above.

An intermediate plug portion 44 is formed in the radial center portion of the intermediate plate portion 41 . The intermediate plug portion 44 is connected to the intermediate plate portion 41 via a thin weakened portion 41a. By breaking the weakened portion 41a, the inner plug portion 44 is separated from the intermediate plate portion 41, and a communication hole (not shown) is formed. It should be noted that the communication hole of the present embodiment is formed in the middle plate portion 41 after the middle plug portion 44 is separated, similarly to the communication hole 11d of the first embodiment, and vertically penetrates the middle plate portion 41. It is a through hole. The inner plug portion 44 has a disk-shaped base portion 44a in plan view and a transition cylinder portion 44b extending upward from the base portion 44a. A weakened portion 41a is provided along the entire circumference of the outer peripheral edge of the base portion 44a. Before the weakened portion 41a is broken, the communication hole is closed, and the flow of air and contents through the communication hole is blocked.

A plurality of first engaging portions 44c projecting radially outward are formed on the outer peripheral surface of the transition cylinder portion 44b. As with the first engaging portions 14c of the first embodiment, the first engaging portions 44c of the present embodiment are also arranged at intervals in the circumferential direction and extend along the vertical direction. A first holding projection 44d that protrudes radially inward is formed at the upper end portion of the inner peripheral surface of the transition cylinder portion 44b.

The fixed tubular portion 42 extends downward from the outer peripheral edge of the flange portion 48 . A fitting portion 42 a that protrudes radially inward is formed on the inner peripheral surface of the fixed tubular portion 42 . The fitting portion 42a is undercut-fitted to the protrusion 2b formed on the outer peripheral surface of the mouth portion 2a, thereby restricting the upward movement of the fixed cylindrical portion 42 with respect to the container body 2. As shown in FIG. The fitting cylinder portion 43 extends downward from a portion of the flange portion 48 located radially inward of the fixed cylinder portion 42 . Since the fitting cylinder part 43 is fitted inside the mouth part 2a, the gap between the fitting cylinder part 43 and the mouth part 2a is sealed to prevent the contents from leaking out.

Rotation of the fixed portion 40 about the container axis O with respect to the container body 2 is restricted. The restriction may be performed by fitting (pressing) the fitting cylinder portion 43 into the mouth portion 2a, or by providing a detent portion or the like.

An outer guide portion 45 and a lip portion 47 are formed on the upper surface of the intermediate plate portion 41 . The outer guide portion 45 and the lip portion 47 protrude upward from the intermediate plate portion 41 .
The outer guide portion 45 has an annular shape in plan view and is positioned radially outward of the lip portion 47 . A projection 45a that protrudes radially outward is formed at the lower end of the outer guide portion 45, and a first restricting portion 45b that protrudes radially inward is formed at the upper end of the outer guide portion 45. ing. As shown in FIG. 9, the first restricting portion 45b extends in the circumferential direction.

As shown in FIG. 8 , the lip portion 47 is positioned radially outward of the inner plug portion 44 . A weakened portion 41 a is arranged at the lower end portion of the inner peripheral surface of the lip portion 47 . Therefore, when the weakened portion 41 a is broken and the inner plug portion 44 is separated from the intermediate plate portion 41 , the aforementioned communication hole communicates with the inside of the lip portion 47 . The lip portion 47 is formed in a tubular shape whose diameter gradually increases upward. The height of the upper end portion of the lip portion 47 is uneven in the circumferential direction, and the portion of the lip portion 47 positioned rearward (on the hinge H side) is higher than the portion positioned forward (on the knob portion 66 side). getting low.

An inner guide portion 46 is formed at the front end portion of the lip portion 47 . The inner guide portion 46 protrudes radially outward from the lip portion 47 . As shown in FIG. 9 , the inner guide portion 46 extends circumferentially along a portion of the outer peripheral surface of the lip portion 47 . A restricting portion 49 is formed on the outer peripheral surface of the lip portion 47 so as to protrude radially outward. The restricting portion 49 is spaced apart from the inner guide portion 46 in the circumferential direction.

As shown in FIG. 8 , the connecting portion 50 has a connecting tubular portion 51 , an annular portion 52 and a lower tubular portion 53 . The connecting tubular portion 51 is formed in a tubular shape extending in the vertical direction, and surrounds the fixed tubular portion 42 and the flange portion 48 of the fixed portion 40 from the outside in the radial direction. A fitting protrusion that is undercut-fitted to the outer peripheral edge of the flange portion 48 is formed on the inner peripheral surface of the connecting tubular portion 51 , so that upward movement of the connecting portion 50 with respect to the fixed portion 40 is restricted.

A hinge H connects the upper end portion of the outer peripheral surface of the connecting cylinder portion 51 and the lower end portion of the peripheral wall 62 of the lid body 60 . In this embodiment, the lid 60 and the connecting portion 50 are connected by the hinge H and formed integrally, but they may be formed separately.

The annular portion 52 is formed in an annular shape in plan view. The outer peripheral edge of the annular portion 52 is locked inside a circumferentially extending groove formed in the inner peripheral surface of the peripheral wall 62 of the lid 60 . The inner peripheral edge of the annular portion 52 faces the protrusion 45a of the outer guide portion 45 in the vertical direction. The lower tubular portion 53 extends downward from the lower surface of the annular portion 52 and contacts the flange portion 48 from above.

The lid body 60 has a top wall 61 , a peripheral wall 62 , an engaging cylinder portion 63 , a holding portion 64 , a restricting convex portion 65 and a knob portion 66 . The top wall 61 is formed in a disc shape. A display similar to that of the first embodiment may be provided on the top surface of the top wall 61 . The peripheral wall 62 extends downward from the outer peripheral edge of the top wall 61 and has a cylindrical shape. The knob portion 66 protrudes radially outward from the lower end portion of the outer peripheral surface of the peripheral wall 62 .

The engaging tube portion 63 , the holding portion 64 , and the restricting convex portion 65 protrude downward from the lower surface of the top wall 61 . The engagement tube portion 63 is formed in a tubular shape extending in the vertical direction. The outer peripheral surface of the engaging cylinder portion 63 is in contact with the inner peripheral surface of the lip portion 47 . Therefore, even when the inner plug portion 44 is separated from the intermediate plate portion 41 and the communication hole is opened, the inside of the lip portion 47 can be closed as long as the lid body 60 is closed.

The engagement tubular portion 63 surrounds the transition tubular portion 44b of the inner plug portion 44 from the radially outer side. A plurality of second engaging portions 63a that protrude radially inward are formed on the inner peripheral surface of the engaging cylinder portion 63 . The plurality of second engaging portions 63a are arranged at intervals in the circumferential direction and extend in the vertical direction. The first engaging portion 44c of the inner plug portion 44 is positioned between the second engaging portions 63a adjacent in the circumferential direction. A second engaging portion 63a is positioned between the first engaging portions 44c adjacent in the circumferential direction. In other words, the first engaging portions 44c and the second engaging portions 63a are alternately arranged in the circumferential direction. With this configuration, the relative rotation of the inner plug portion 44 and the lid body 60 around the container axis O is restricted.

The holding portion 64 extends downward from the radially central portion of the top wall 61 . The holding portion 64 is formed in a cylindrical shape coaxial with the container axis O. As shown in FIG. A lower end portion of the holding portion 64 is inserted inside the transition cylinder portion 44 b of the inner plug portion 44 . A second holding protrusion 64a that protrudes radially outward is formed at the lower end portion of the outer peripheral surface of the holding portion 64 . The second holding projection 64a is located below the first holding projection 44d of the inner plug portion 44. As shown in FIG.

The restricting convex portion 65 is positioned radially outward of the lip portion 47 . As shown in FIG. 9, the restricting convex portion 65 extends along the circumferential direction. A lower end portion of the restriction convex portion 65 is positioned between the inner guide portion 46 and the outer guide portion 45 . A second restricting portion 65 a that protrudes radially outward is formed at the lower end portion of the restricting convex portion 65 . The second restricting portion 65a vertically faces the first restricting portion 45b.

As shown in FIG. 9 , a gap is formed in the circumferential direction between the restricting convex portion 65 and the restricting portion 49 . Although the angle θ of the gap is approximately 90° in this embodiment, the angle can be changed as appropriate.

As shown in FIG. 8, the fixed portion 40 is formed with a first restricting projection 41c, and the connecting portion 50 is formed with a second restricting projection 53a. The second restricting protrusion 53a can transfer the first restricting protrusion 41c in the first direction R1. A plurality of first restricting protrusions 41c are formed at intervals in the circumferential direction on the outer peripheral surface of the connecting tube portion 41b. A plurality of second restricting protrusions 53a are formed on the inner peripheral surface of the lower cylindrical portion 53 at intervals in the circumferential direction. Although not shown, the first restricting protrusion 41c has the same shape as the first restricting protrusion 25 in the first embodiment, and the second restricting protrusion 53a has the same shape as the second restricting protrusion 36 in the first embodiment. has the shape of

That is, in plan view, the first restricting projection 41c has a first inclined surface that gradually extends radially outward in the first direction R1 and a first restricting surface that extends radially. The second restricting projection 53a has a second inclined surface that gradually extends radially outward in the first direction R1 and a second restricting surface that extends radially in plan view. The first restricting protrusion 41c and the second restricting protrusion 53a in this embodiment also act in the same manner as the first restricting protrusion 25 and the second restricting protrusion 36 in the first embodiment.

Next, the operation of the cap 3B configured as above will be described.

Before the start of use, the communicating hole of the intermediate plate portion 41 is blocked by the intermediate plug portion 44 and the weakened portion 41a. From this state, when the lid body 60 and the connecting portion 50 are rotated in the first direction R1 with respect to the fixed portion 40, the first engaging portion 44c and the second engaging portion 63a are engaged with each other, and the inner plug is opened. The rotational force directed in the first direction R1 is also transmitted to the portion 44 . This rotational force acts on the weakened portion 41a positioned between the inner plug portion 44 and the intermediate plate portion 41, breaking the weakened portion 41a. As a result, the middle plug portion 44 is separated from the middle plate portion 41 . The separated inner plug portion 44 is held by the holding portion 64 of the lid 60 by engaging the first holding projection 44d with the second holding projection 64a. With this configuration, when the inner plug portion 44 is separated from the intermediate plate portion 41, the inner plug portion 44 is held by the lower end portion of the holding portion 64, so that the inner plug portion 44 does not drop into the container body 2, for example. is suppressed.

As shown in FIG. 9, the lid body 60 is rotatable in the first direction R1 with respect to the fixed portion 40 within the range of the gap angle θ. When the lid body 60 is rotated in the first direction R1 by the angle θ, the restricting convex portion 65 and the restricting portion 49 come into contact with each other. Therefore, rotation of the lid 60 in the first direction R1 exceeding the angle θ is restricted. In this specification, the position of the lid body 60 when the rotation in the first direction R1 is restricted by the restricting convex portion 65 and the restricting portion 49 is referred to as the "open position".

The position of the restricting protrusion 65 indicated by the dashed line in FIG. 9 indicates the position of the restricting protrusion 65 when the lid body 60 is in the open position. When the lid body 60 is positioned at the open position, the restricting convex portion 65 and the first restricting portion 45b are separated in the circumferential direction. Therefore, the restriction on rotation of the lid body 60 around the hinge H due to the engagement of the first restriction part 45b and the second restriction part 65a is released, and the lid body 60 can be rotated upward. . Therefore, the user can rotate the lid 60 upward around the hinge H by, for example, pinching the knob 66 and moving it upward.

As described above, the cap 3B of the present embodiment includes the fixing portion 40 fixed to the container body 2 and the connecting portion 50 provided rotatably about the container axis O with respect to the fixing portion 40. and a lid body 60 connected to the portion 50 around a hinge H. The fixing portion 40 has an intermediate plate portion 41 that closes the mouth portion 2a of the container body 2, and an intermediate plug portion 44 that is connected to the intermediate plate portion 41 via a weakened portion 41a. Rotation of the lid 30 about the container axis O is restricted. A restricting convex portion 65 extending downward is formed on the top wall 61 of the lid body 60 , and a restricting portion is arranged on the fixing portion 40 with a gap in the circumferential direction from the restricting convex portion 65 . 49 is formed. With this configuration, the rotation of the lid 60 exceeding the angle θ of the gap is restricted, and the user can recognize that the container 1 has been opened due to the restricted rotation of the lid 60. can be done. Therefore, the operability when opening the container 1 can be improved.

The technical scope of the present invention is not limited to the above embodiments, and various modifications can be made without departing from the scope of the present invention.

Further, as shown in FIG. 10, the first restricting protrusion 25 and the second restricting protrusion 36 may be formed in a curved shape when viewed from the direction along the container axis O. As shown in FIG. In this case, when the lid body 30 is rotated in the second direction R2 after the lid body 30 is positioned at the open position, the second restricting protrusions 36 can climb over the first restricting protrusions 25 in the second direction R2. can. That is, the lid body 30 is movable between the closed position and the open position. According to this configuration, after the container 1 is unsealed by breaking the weakened portion 11c, the lid 30 is positioned at the closed position. It can prevent things from leaking out. Similarly, the first restricting protrusion 41c and the second restricting protrusion 53a in the second embodiment may be formed in a curved shape when viewed from the direction along the container axis O.
In addition, the first restricting projections 25, 41c and the second restricting projections 36, 53a are not limited to curved surfaces, and can be climbed over each other, and the lids 30, 60 can move between the closed position and the open position. It may be a structure such as a protrusion shape.

In addition, it is possible to appropriately replace the components in the above-described embodiments with well-known components without departing from the scope of the present invention, and the above-described embodiments and modifications may be combined as appropriate.

DESCRIPTION OF SYMBOLS 10, 40... Fixing part 20, 50... Connection part 30, 60... Lid body 11, 41... Middle plate part 14, 44... Middle plug part 11c, 41a... Weakening part 22a... Regulation hole part 25, 41c... First regulation Projection 25a First inclined surface 25b First regulating surface 35, 65 Restricting convex portion 36, 53a Second regulating projection 36a Second slanted surface 36b Second regulating surface 49 Restricting portion O Container shaft R1 First direction R2... Second direction

Claims (6)

a fixing portion fixed to the mouth portion of the container body in which the contents are accommodated;
a connecting portion connected to the fixed portion so as to be rotatable around a hinge;
a topped cylindrical lid provided rotatably about the container axis with respect to the connecting part,
The fixing portion has an intermediate plate portion that closes the mouth portion, and an intermediate plug portion that is connected to the intermediate plate portion via a weakened portion,
A restriction hole extending in the circumferential direction is formed in the connecting portion,
rotation of the inner plug portion about the container axis with respect to the lid body is restricted;
The top wall of the lid body is formed with a regulating protrusion extending downward and inserted into the regulating hole,
A cap, wherein a gap in the circumferential direction is formed between an end of the restricting protrusion in a first direction along the circumferential direction and an end of the restricting hole in the first direction. a fixing portion fixed to the mouth portion of the container body in which the contents are accommodated;
a connecting portion provided to be rotatable about the container axis with respect to the fixed portion;
a capped cylindrical lid body rotatably connected to the connecting portion around a hinge,
The fixing portion has an intermediate plate portion that closes the mouth portion, and an intermediate plug portion that is connected to the intermediate plate portion via a weakened portion,
Rotation of the inner plug portion about the container axis with respect to the lid body is restricted by a first engaging portion formed in the inner plug portion and a second engaging portion formed in the lid body,
The top wall of the lid body is formed with a downwardly extending regulating projection,
The cap, wherein the fixing portion is formed with a restricting portion that is arranged with a circumferential gap from the restricting convex portion. 2. The cap according to claim 1, wherein the lid body is formed with a second restricting projection that can climb over the first restricting projection formed on the connecting portion in a first circumferential direction. 3. The cap according to claim 2, wherein the connecting portion is formed with a second restricting projection that can climb over the first restricting projection formed on the fixing portion in a first circumferential direction. The first restricting projection has, in plan view, a first inclined surface that gradually extends outward in the radial direction in the first direction and a first restricting surface that extends in the radial direction,
5. Said 2nd control protrusion has a 2nd inclined surface extended radially outward gradually toward said 1st direction, and the 2nd control surface extended radially in planar view. cap described in . 5. The cap according to claim 3, wherein said first restricting protrusion and said second restricting protrusion are formed to have curved surfaces when viewed from the direction along said container axis.

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