JP7018765B2 - Hinge cap - Google Patents

Description

The present invention relates to a hinge cap.

Conventionally, as shown in Patent Document 1 below, a main body portion attached to the mouth portion of the container main body, a lid portion covering the mouth portion, and a hinge for rotatably connecting the lid portion to the main body portion. Hinge caps with, are known. On the inner peripheral surface of the lid portion, a fitting portion for undercut fitting is formed on the outer peripheral surface of the fitting cylinder extending upward from the main body portion. As a result, the lid portion is prevented from rotating around the hinge, and the state in which the mouth portion is closed by the lid portion is maintained.

Japanese Unexamined Patent Publication No. 2007-204104

This type of hinge cap may be used for so-called wide-mouthed containers in which the mouth of the container body is greatly opened when the lid is opened. When the hinge cap was used for the wide-mouthed container, there was room for improvement in maintaining the state in which the lid was closed more reliably while facilitating the opening and closing operation of the lid.

The present invention has been made in consideration of such circumstances, and provides a hinge cap capable of more reliably maintaining a state in which the lid portion closes the mouth portion of the container body while facilitating the opening / closing operation of the lid portion. With the goal.

In order to solve the above problems, the hinge cap according to one aspect of the present invention is formed in a ridged tubular shape and a main body portion attached to the mouth portion of the container main body for accommodating the contents, and covers the mouth portion. The lid portion, a first hinge that rotatably connects the rear end portion of the lid portion to the main body portion, a locking piece provided at the front end portion of the lid portion, and the locking piece are connected to the locking piece. A second hinge that is rotatably connected to the lid portion is provided, and a recess in which the locking portion of the locking piece is fitted is formed in the main body portion, and among the locking portions, the locking portion is formed. When the width of the upper end portion connected to the second hinge in the circumferential direction is W1, the width of the lower end portion in the circumferential direction is W2, and the width of the upper end portion of the recess in the circumferential direction is W3, W1 ≦ W3 < W2, the locking portion is formed in a curved shape that is convex toward the front, and the locking portion has a lower engaging portion whose width gradually increases in the circumferential direction from the upper side to the lower side, and a peripheral portion. It has a straight portion whose width in the direction is constant in the vertical direction, and the recess has an upper engaging portion whose width in the circumferential direction gradually increases from above to downward, and a concave portion whose width in the circumferential direction is constant in the vertical direction. A pair of protrusions projecting in the circumferential direction toward the inside of the concave portion are formed on the front end edge of the concave straight portion .

According to the above aspect, a recess in which the locking piece fits is formed in the main body portion. The width W1 at the upper end of the locking piece is smaller than the width W2 at the lower end of the locking piece, and the width W3 at the upper end of the recess is smaller than the width W2 of the locking piece. Therefore, in a state where the locking piece is fitted in the concave portion, a part of the locking piece faces the concave portion in the vertical direction, and the upward movement of the locking piece with respect to the concave portion is restricted. Therefore, even if the lid portion tries to open unexpectedly upward, the locking piece and the lid portion are restricted from moving upward, so that the lid portion is prevented from opening unexpectedly, and the lid portion is the container body. It is possible to more reliably maintain the state in which the mouth is closed. As a result, for example, the lid portion can be kept strongly inserted toward the mouth portion, and the sealing property of the container body can be improved.
Further, when opening and closing the lid portion, the locking piece is easily fitted in the recess and the locking piece is detached from the recess by rotating the locking piece around the second hinge. Can be switched. After the locking piece is disengaged from the recess, the lid is easily rotatable around the first hinge. Therefore, the opening / closing operation of the lid can be facilitated.
Further, for example, in the case where an undercut fitting portion is formed on the inner peripheral surface of the lid portion with respect to the main body portion, if an attempt is made to increase the fitting amount in order to increase the fitting strength, the structure of the mold becomes complicated. It leads to the change. On the other hand, in the above aspect, the fitting amount between the locking piece and the recess can be easily increased by changing the dimensions W1, W2, and W3. Therefore, the fitting strength can be increased without complicating the structure of the mold.

Here, the width in the circumferential direction in the intermediate portion between the upper end portion and the lower end portion of the locking portion is gradually increased from the upper side to the lower side, and the upper end portion of the concave portion is gradually increased. The width in the circumferential direction at the intermediate portion between the upper end and the lower end portion may gradually increase from the upper side to the lower side.

In this case, the locking pieces and the intermediate portions of the recesses come into contact with each other over a wide area in the vertical direction. Therefore, the state in which the locking piece is fitted in the recess can be more reliably maintained.

Further, at least a part of the opening edge of the recess adjacent to the locking portion in the circumferential direction may be formed with a protrusion protruding toward the inside of the recess.

In this case, when the locking piece is fitted in the recess, the protrusion formed on the opening edge of the recess covers the locking piece from the front thereof. As a result, the locking piece is prevented from unexpectedly rotating around the second hinge, and the closed state of the lid can be maintained more reliably.

According to the above aspect of the present invention, it is possible to provide a hinge cap capable of more reliably maintaining a state in which the lid portion closes the mouth portion of the container body while facilitating the opening / closing operation of the lid portion.

It is a vertical sectional view of the container with a cap provided with the hinge cap which concerns on this embodiment. FIG. 3 is a vertical cross-sectional view showing a case where the lid portion of the container with a cap of FIG. 1 is in an open state. It is a top view of the hinge cap of FIG. (A) is an arrow view in the IV direction of FIG. (B) is a cross-sectional view taken along the line AA of (a). (A) is a side view showing a state in which the locking piece is rotated upward around the second hinge in the container with a cap of FIG. 1. (B) is the V-direction arrow view of (a). (A) is a side view showing a state in which the locking piece is rotated downward around the second hinge in the container with a cap of FIG. 5 (a). (B) is the VI direction arrow view of (a).

Hereinafter, the hinge cap of this embodiment will be described with reference to the drawings. In the following description, as shown in FIG. 1, the present embodiment will be described by exemplifying a container with a cap 1 having a hinge cap 2 attached to a wide-mouthed container body 3 as an example.
As shown in FIG. 1, the capped container 1 includes a bottomed cylindrical container body 3 in which the contents are housed, and a hinge cap 2 attached to the mouth portion 3b of the container body 3. As the content, for example, creamy cosmetics and the like are used. However, the content is not limited to this, and the content may be a drug, food, or the like, and its properties may be liquid, powder, solid, or the like.

The hinge cap 2 is provided on the tubular main body 10 attached to the mouth 3b of the container main body 3, the ridged tubular lid 20 that openably closes the mouth 3b, and the lid 20. It includes a locking piece 30 and. Further, the hinge cap 2 includes a first hinge H1 that rotatably connects the lid portion 20 to the main body portion 10, and a second hinge H2 that rotatably connects the locking piece 30 to the lid portion 20. , Is equipped. The main body portion 10, the first hinge H1, the lid portion 20, the second hinge H2, and the locking piece 30 are integrally formed by injection molding or the like.

FIG. 2 is a vertical sectional view showing a state in which the lid portion 20 of FIG. 1 is opened. As shown in FIG. 2, the container 1 with a cap of the present embodiment is a so-called wide-mouthed container in which the mouth portion 3b of the container main body 3 is greatly opened by opening the lid portion 20.

(Direction definition)
As shown in FIG. 1, the container main body 3, the main body portion 10, and the lid portion 20 are arranged in a state where their respective central axes are located on a common axis. Hereinafter, this common shaft is referred to as a cap shaft O, the direction along the cap shaft O is referred to as a vertical direction, the lid portion 20 side along the vertical direction is referred to as an upper side, and the bottom side of the container body 3 is referred to as a lower side. Further, the direction that intersects the cap axis O in a plan view from the vertical direction is referred to as a radial direction, and the direction that orbits around the cap axis O is referred to as a circumferential direction. Further, in the radial direction, the direction in which the first hinge H1 and the second hinge H2 face each other is referred to as a front-rear direction. The second hinge H2 side in the front-rear direction is referred to as front, and the first hinge H1 side is referred to as rear. As shown in FIG. 2, when the lid portion 20 is opened, the second hinge H2 is located behind the first hinge H1.

The main body portion 10 includes a mounting cylinder 11 mounted on the mouth portion 3b of the container main body 3 and an inner cylinder portion 13 extending upward from the mounting cylinder 11. The outer diameter of the mounting cylinder 11 is the same as the outer diameter of the peripheral wall 3a in the container body 3. The outer diameter of the inner cylinder portion 13 is smaller than the outer diameter of the mounting cylinder 11. The inner diameter of the inner cylinder portion 13 is equivalent to the inner diameter of the peripheral wall 3a of the container body 3.
On the inner peripheral surface of the mounting cylinder 11, a female screw portion screwed with a male screw portion formed on the outer peripheral surface of the mouth portion 3b is formed. In the present embodiment, the mounting cylinder 11 is screwed to the mouth portion 3b, but the mounting cylinder 11 may be fixed to the mouth portion 3b by undercut fitting or the like.

The peripheral wall 20b of the lid portion 20 surrounds the inner cylinder portion 13 from the outside in the radial direction. The lower end of the peripheral wall 20b at the rear end is connected to the mounting cylinder 11 by the first hinge H1. A disk-shaped packing 21 is provided in the lid portion 20. The packing 21 is formed in a disk shape, and its outer diameter is substantially the same as the outer diameter of the inner cylinder portion 13. When the lid portion 20 is closed, the packing 21 is compressed in the vertical direction between the top wall 20a of the lid portion 20 and the inner cylinder portion 13 of the main body portion 10. Thereby, the sealing property (sealing property) of the container 1 with a cap can be improved. This configuration is suitable, for example, when the content is liquid, creamy, or the like. The packing 21 may not be provided in the lid portion 20.

The locking piece 30 is provided at the front end portion of the lid portion 20. The locking piece 30 is rotatably connected to the lower end portion of the peripheral wall 20b of the lid portion 20 around the second hinge H2. The locking piece 30 has a plate-shaped locking portion 31 connected to the second hinge H2, and a knob portion 32 protruding forward (outward in the radial direction) from the lower end portion of the locking portion 31. .. The locking portion 31 is formed in a curved surface shape that is convex toward the front (see FIG. 5B).

As shown in FIGS. 3 and 6 (b), the locking portion 31 is formed in a substantially triangular shape having a wider width in the circumferential direction toward the lower side. More specifically, the locking portion 31 has a lower engaging portion 31a whose width in the circumferential direction gradually increases from upward to downward, and a straight portion 31b whose width in the circumferential direction is constant in the vertical direction. ing. The straight portion 31b is formed below the lower engaging portion 31a. The upper end portion of the lower engaging portion 31a (the upper end portion of the locking portion 31) is connected to the second hinge H2. With this configuration, the width in the circumferential direction in the intermediate portion between the upper end portion and the lower end portion of the locking piece 30 gradually increases from the upper side to the lower side.
Both end faces of the lower engaging portion 31a in the circumferential direction are formed in a straight line.

In the present embodiment, as shown in FIG. 3, the width of the upper end portion of the locking portion 31 (locking piece 30) in the circumferential direction is represented as W1, and the circumference of the lower end portion of the locking portion 31 (locking piece 30) is represented by W1. The width in the direction is expressed as W2. The width of the upper end portion of the lower engaging portion 31a in the circumferential direction is W1. The width of the straight portion 31b in the circumferential direction is W2. The locking portion 31 of this embodiment has W1 <W2.

As shown in FIGS. 3 and 4A, a recess 12 is formed in the main body 10. The recess 12 is recessed from the front end portion on the outer peripheral surface of the mounting cylinder 11 toward the rear (inward in the radial direction). The locking portion 31 of the locking piece 30 is fitted in the recess 12. As shown in FIGS. 4A and 4B, the recess 12 is formed in a substantially triangular shape when viewed from the front. More specifically, the recess 12 has an upper engaging portion 12a whose width in the circumferential direction gradually increases from upward to downward, and a concave straight portion 12b whose width in the circumferential direction is constant in the vertical direction. There is. With this configuration, the width in the circumferential direction in the intermediate portion between the upper end portion and the lower end portion of the recess 12 gradually increases from the upper side to the lower side.
Both end faces of the upper engaging portion 12a in the circumferential direction are formed in a straight line.

At least a part of the opening edge of the recess 12 adjacent to the locking piece 30 in the circumferential direction is formed with a protrusion 12c protruding in the circumferential direction toward the inside of the recess 12. The protrusion 12c faces the bottom surface of the recess 12 in the radial direction. A pair of protrusions 12c are provided at intervals in the circumferential direction. Each protrusion 12c is formed along the front end edge of the concave straight portion 12b over the entire length in the vertical direction of the concave straight portion 12b. The two-dot chain line in FIG. 4B shows the contour of the locking portion 31 in a state where the locking portion 31 is fitted in the recess 12.

As shown in FIGS. 4A and 4B, in the present embodiment, the width of the upper end portion (upper end portion of the concave portion 12) of the upper engaging portion 12a in the circumferential direction is represented as W3, and the concave straight portion 12b (concave side straight portion 12b). The width in the circumferential direction of the lower end portion of the recess 12) is represented as W4. The hinge cap 2 is configured such that W1 <W3 <W2. As a result, when the locking portion 31 is fitted in the recess 12, the upper engaging portion 12a and the lower engaging portion 31a are in a state of facing each other in the vertical direction.

Further, the distance between the pair of protrusions 12c in the circumferential direction is represented as W5. The hinge cap 2 is configured such that W5 <W2 <W4. Since W5 <W2, as shown in FIG. 4B, when the locking portion 31 is fitted in the recess 12, the protrusion 12c covers a part of the locking portion 31 from the front thereof. Become. In this state, the locking portion 31 is radially sandwiched by the bottom surface of the recess 12 and the protrusion 12c.
It is also possible that the width (W5) in the circumferential direction of the opening of the recess 12 is smaller than the width (W4) in the circumferential direction inside the recess 12 in the cross-sectional view orthogonal to the cap axis O. can.

Next, the operation of the hinge cap 2 in this embodiment will be described.

FIG. 1 shows a state in which the lid portion 20 is closed and the locking piece 30 is fitted in the recess 12. In this state, since W1 <W3 <W2 as described above, the lower engaging portion 31a and the upper engaging portion 12a face each other in the vertical direction. Therefore, when the locking piece 30 tries to move upward with respect to the recess 12, the lower engaging portion 31a and the upper engaging portion 12a come into contact with each other in the vertical direction. By engaging the lower engaging portion 31a and the upper engaging portion 12a with each other in this way, the upward movement of the locking piece 30 with respect to the recess 12 is restricted. Since the locking piece 30 is connected to the lid portion 20 via the second hinge H2, the upward rotation of the lid portion 20 around the first hinge H1 is also restricted. Therefore, for example, even if an upward force acts on the lid portion 20 due to the reaction force of the packing 21 compressed in the vertical direction, the lid portion 20 is prevented from opening unexpectedly.

When the lid portion 20 is opened from the state shown in FIG. 1, the locking piece 30 is rotated upward around the second hinge H2 to separate the locking piece 30 from the recess 12. At this time, in the present embodiment, the locking portion 31 of the locking piece 30 is formed in a curved surface shape that is convex toward the front. Therefore, even when the locking portion 31 is fitted in the recess 12, the grip portion 32 is in a state of being greatly projected forward. Further, a radial (front-back direction) gap is generated between the lower end portion of the locking portion 31 and the main body portion 10. Therefore, by picking the grip portion 32 or putting a finger on the inside of the locking portion 31, the locking piece 30 can be easily rotated upward around the second hinge H2. Further, since the locking portion 31 has a curved surface shape that is convex toward the front and is formed to have a substantially constant thickness, the locking piece 30 can be flexed and deformed (elastically deformed). When the locking piece 30 is detached from the recess 12, it is elastically deformed so that the width of the lower end portion of the locking portion 31 in the circumferential direction becomes smaller, so that the locking pieces 12c can easily pass between the protrusions 12c. ..

After the locking piece 30 is disengaged from the recess 12, the lid 20 can be rotated upward around the first hinge H1. Therefore, by pulling up the lid portion 20 together with the locking piece 30, the lid portion 20 can be rotated upward to open the mouth portion 3b of the container body 3.

When the lid portion 20 is to be closed again after using the contents, the lid portion 20 is rotated downward around the first hinge H1 as shown in FIGS. 5 (a) and 5 (b). Make it a state.
Next, the locking piece 30 is rotated downward around the second hinge H2, and the locking piece 30 is pushed toward the recess 12 as shown in FIGS. 6A and 6B. By this operation, the locking portion 31 gets over the protruding portion 12c behind and a click feeling is generated, and as shown by the two-dot chain line in FIG. 4B, the locking portion 31 is covered from the front by the protruding portion 12c. It will be in a state of being. Therefore, it is possible to prevent the locking portion 31 from unexpectedly rotating forward around the second hinge H2, and it is possible to more reliably maintain the state in which the locking portion 31 is fitted in the recess 12.

As described above, in the hinge cap 2 of the present embodiment, the concave portion 12 into which the locking portion 31 is fitted is formed in the main body portion 10. Then, the width of the upper end portion of the locking piece 30 connected to the second hinge H2 in the circumferential direction is W1, the width of the lower end portion of the locking piece 30 in the circumferential direction is W2, and the circumference of the upper end portion of the recess 12 is set. When the width in the direction is W3, W1 <W3 <W2. With this configuration, when the locking piece 30 is fitted in the recess 12, a part of the locking piece 30 (lower engaging portion 31a) and a part of the recess 12 (upper engaging portion 12a) move up and down. They face each other in the direction, and the upward movement of the locking portion 31 with respect to the recess 12 is restricted. Therefore, the upward movement of the lid portion 20 is also restricted, and the state in which the lid portion 20 closes the mouth portion 3b of the container body 3 can be more reliably maintained.

Further, the width in the circumferential direction in the intermediate portion between the upper end portion and the lower end portion of the locking piece 30 gradually increases from the upper side to the lower portion, and the upper end portion and the lower end portion of the recess 12 are formed. The width in the circumferential direction in the middle part of is gradually increased from the upper side to the lower side. With this configuration, the intermediate portions of the locking piece 30 and the recess 12 come into contact with each other over a wide area in the vertical direction. Therefore, the state in which the locking piece 30 is fitted in the recess 12 can be more reliably maintained.

Further, by rotating the locking piece 30 around the second hinge H2, it is possible to easily switch between a state in which the rotation of the lid portion 20 is restricted and a state in which the rotation of the lid portion 20 is permitted. Can be done.
On the other hand, for example, when the lid portion 20 is screwed, the fingers slip when the lid portion 20 is gripped after using the contents such as hand cream, and the operation of closing the lid portion 20. There is a problem that it is difficult to remove. In the present embodiment, the lid portion 20 is maintained in a closed state by the locking piece 30, so that the above-mentioned problems can be improved.

Further, for example, when a portion is formed on the peripheral wall 20b of the lid portion 20 so as to project inward in the radial direction and undercut fit to the inner cylinder portion 13, the amount of undercut should be increased in order to increase the fitting strength. If so, the structure of the mold will be complicated. On the other hand, in the present embodiment, the fitting amount between the locking piece 30 and the recess 12 can be easily increased by changing the above-mentioned dimensions W1, W2, and W3. Therefore, the fitting strength can be increased without complicating the structure of the mold.

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

For example, in the above embodiment, both end faces of the lower engaging portion 31a and the upper engaging portion 12a in the circumferential direction are formed linearly, but the end faces thereof may be curved or the like. Further, the lower engaging portion 31a and the upper engaging portion 12a do not have to be gradually increased from the upper side to the lower side. Even in this case, for example, the locking piece 30 and the recess 12 are formed in an inverted T-shape when viewed from the front, and when W1 <W3 <W2, the same effect as described above can be obtained. be able to.

Further, although W1 <W3 in the above embodiment, the same effect can be obtained even if W1 = W3. That is, each dimension of the hinge cap 2 may be W1 ≦ W3 <W2.
Further, the hinge cap 2 does not have to be formed with the protrusion 12c. For example, in the case where the locking portion 31 is formed in a convex curved surface shape toward the front as in the above embodiment, the width W2 of the lower end portion of the locking piece 30 is larger than the width W4 of the lower end portion of the concave portion 12. It is also possible to form it slightly larger. In this case, in a state where the locking piece 30 is fitted in the recess 12, the lower end portion of the locking piece 30 is elastically deformed so as to shrink in the circumferential direction. Due to this elastic force, the locking piece 30 may be maintained in a state of being fitted in the recess 12.

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

1 ... Container with cap 2 ... Hinge cap 3 ... Container body 3b ... Mouth 10 ... Main body 12 ... Recess 12c ... Protrusion 20 ... Lid 30 ... Locking piece H1 ... 1st hinge H2 ... 2nd hinge

Claims (1)

The main body attached to the mouth of the container body that houses the contents,
The lid that covers the mouth and
A first hinge that rotatably connects the rear end portion of the lid portion to the main body portion,
A locking piece provided at the front end of the lid and
A second hinge that rotatably connects the locking piece to the lid is provided.
A recess in which the locking portion of the locking piece fits is formed in the main body portion.
Of the locking portions, the width of the upper end portion connected to the second hinge in the circumferential direction is W1, and the width of the lower end portion in the circumferential direction is W2.
When the width of the upper end of the recess in the circumferential direction is W3,
W1 ≦ W3 <W2,
The locking portion is formed in a curved surface shape that is convex toward the front.
The locking portion has a lower engaging portion in which the width in the circumferential direction gradually increases from the upper side to the lower side, and a straight portion in which the width in the circumferential direction is constant in the vertical direction.
The recess has an upper engaging portion whose width in the circumferential direction gradually increases from above to downward, and a concave straight portion whose width in the circumferential direction is constant in the vertical direction.
A hinge cap in which a pair of protrusions projecting in the circumferential direction toward the inside of the concave portion are formed on the front end edge of the concave straight portion .

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