JP7190965B2 - hinge cap - Google Patents

Description

The present invention relates to hinge caps.

In general, a hinge cap is rotatably connected to a topped tubular cap body having a top wall portion formed with a hole for pouring out contents, and a first hinge portion to the cap body to open the pour hole. and a cover plate portion that can be closed.

Japanese Unexamined Patent Application Publication No. 2011-93580

However, when the cover plate is turned upward and rotated around the first hinge to open the pouring hole, the position of the cover plate around the first hinge is unstable and the contents are poured out. There was a possibility that the cover plate part would sometimes get in the way.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a hinge cap capable of stabilizing the position of the cover plate around the first hinge when the pouring hole is open. With the goal.

In order to solve the above problems and achieve such objects, the hinge cap of the present invention comprises a topped cylindrical cap body having a top wall portion formed with a hole for pouring out contents, and the top wall. a lid plate portion that is rotatably connected to the portion via a first hinge portion and that closes the pouring hole so as to be openable; and a lid plate portion that is rotatably connected to both sides of the lid plate portion via a second hinge portion. a pair of side plate portions, wherein in top view, the first hinge portion is connected to a rear edge of the outer peripheral edge of the cover plate portion, and the second hinge portion is connected to the cover plate portion; are positioned at both ends in the horizontal direction where the first hinge portion extends and are connected to side edges extending forward from the rear edge of the outer peripheral edge of the side plate portion, and the rear portion of the side plate portion is connected to the cover plate portion. It is positioned rearward and is rotatably connected to the top wall portion via a third hinge portion, and each of the third hinge portions extends laterally away from each other as it goes rearward in a top view. In the side plate portion, at least a corresponding portion straddling the first hinge portion in the front-rear direction is formed to be elastically deformable.

According to this invention, when the cover plate closing the pouring hole is rotated upward around the first hinge, the side plate also rotates upward around the third hinge.
At this time, the pair of third hinge portions extend in a lateral direction away from each other toward the rear in a top view, and at least corresponding portions of the side plate portions are formed to be elastically deformable. Therefore, in the process of rotating the cover plate portion closing the pouring hole upward around the first hinge portion, the side plate portion rotates around the second hinge portion toward the upper surface side of the cover plate portion. Meanwhile, the corresponding portion of the side plate first undergoes tensile deformation toward the front, and after that, when the corresponding portion of the side plate passes through the dead center position around the first hinge portion of the cover plate, where the corresponding portion of the side plate undergoes maximum tensile deformation, the side plate The corresponding part of the part is restored and deformed.
As a result, when the cover plate portion is positioned closer to the pouring hole side than the dead center position along the circumference of the first hinge portion, the elastic restoring force of the corresponding portion of the side plate portion moves the cover plate portion toward the pouring hole side. When the cover plate portion is positioned on the opposite side of the pouring hole from the dead center position along the periphery of the first hinge portion, the elastic restoring force of the corresponding portion of the side plate portion causes the cover plate portion to move. It is biased against the spout hole. Therefore, when an unexpected external force is applied to the pouring hole in a state where the cover plate blocks the pouring hole, the pouring hole can be prevented from being opened, and the pouring hole can be opened. It is possible to stabilize the position of the cover plate portion around the first hinge portion when the cover plate portion is in place.

The lid plate portion extends upward as it goes from the front to the rear, and the portion of the side plate portion excluding the corresponding portion, or the entirety thereof, separates from the lateral outer end of the first hinge portion. may extend downward according to

In this case, the cover plate portion extends upward as it goes from the front to the rear, and the portion of the side plate portion excluding the corresponding portion, or the entirety thereof, separates from the lateral outer end of the first hinge portion. , extending downward. Therefore, it is possible to secure the distance between the first hinge portion, which is the center of rotation of the cover plate portion, and the rear end of the third hinge portion, which is the center of rotation of the lower edge of the side plate portion, and the first hinge portion can be secured. The rotation trajectory of the front edge of the cover plate portion centered on the third hinge portion can be projected outside the rotation trajectory of the front end of the lower edge of the side plate portion centered on the rear end of the third hinge portion. To make it easier to rotate a side plate part around a second hinge part toward the upper surface side of the cover plate part when the cover plate part blocking a is rotated upward around the first hinge part. can be done.
As a result, when the lid plate is positioned at the dead center position along the periphery of the first hinge portion, it is possible to secure a large maximum tensile margin for the corresponding portion of the side plate portion, and the lid plate portion is positioned at the first hinge portion. When the cover plate is positioned closer to the pouring hole side than the dead point position along the circumference of the first hinge portion, the lid plate portion is biased toward the pouring hole side, and the cover plate portion is dead along the circumference of the first hinge portion. It is possible to reliably realize a configuration in which the cover plate portion is biased toward the opposite side of the pouring hole when the lid is located on the opposite side of the pouring hole from the point position.

A main surface portion extending upward from the front to the rear on the upper surface of the top wall portion and having the pouring hole formed thereon; the first hinge portion is connected to the rear edge of the main surface portion; and may be separately connected to side edges extending rearward from the rear edge of the main surface portion.

In this case, the main surface portion in which the pouring hole is formed extends upward as it goes from the front to the rear, and the first hinge portion is connected to the rear edge of the main surface portion. The pouring hole can be reliably closed by the cover plate portion extending upward as it goes.
The rear surface portion extends downward as it goes rearward from the rear edge of the main surface portion, the third hinge portions are separately connected to the side edges of the rear surface portion, and the cover plate portion extends as described above. Therefore, it is possible to easily realize a side plate portion that extends downward as the portion excluding the corresponding portion or the entirety thereof moves away from the lateral outer end of the first hinge portion.

The side plate portion may be formed in a plate shape over the entire area including the corresponding portion, and inner and outer surfaces of the side plate portion facing the lateral direction may be positioned on the same plane over the entire area including the corresponding portion.

In this case, the side plate portion is formed in a plate shape over the entire area including the corresponding portion, and the laterally facing inner and outer surfaces of the side plate portion are positioned on the same plane over the entire area including the corresponding portion. The corresponding portion can be elastically deformable without protruding in the lateral direction, and the bulkiness of the hinge cap and deterioration of its appearance can be suppressed.

Provided on the upper surface of the top wall portion are a main surface portion extending in a horizontal direction orthogonal to the axial direction in which the central axis of the cap body extends and having the pouring hole formed on both sides sandwiching the main surface portion in the lateral direction. and a side surface portion extending downward as it is separated from the main surface portion in the lateral direction, the upper and lower surfaces of the cover plate portion extending in the horizontal direction, the cover plate portion being provided on the main surface portion, The side plate portion is formed in a plate shape over the entire area including the corresponding portion, and the inner and outer surfaces of the side plate portion facing the lateral direction are positioned on the same plane over the entire area including the corresponding portion. , may be provided on the side portion.

In this case, the side plate portion is formed in a plate shape over the entire area including the corresponding portion, and the laterally facing inner and outer surfaces of the side plate portion are positioned on the same plane over the entire area including the corresponding portion. The corresponding portion may be elastically deformable without protruding laterally.
Since the upper and lower surfaces of the main surface portion and the cover plate portion extend in the horizontal direction, and the cover plate portion is provided on the main surface portion, the main surface portion and the cover plate portion can be prevented from protruding upward.
As described above, it is possible to reliably prevent the hinge cap from becoming bulky and from deteriorating its appearance.

According to the present invention, it is possible to stabilize the position of the cover plate portion around the first hinge portion when the pouring hole is open.

1 is a top view of a hinge cap shown as a first embodiment according to the present invention; FIG. It is the side view which looked at the hinge cap of FIG. 1 from the horizontal direction. FIG. 2 is a cross-sectional view of the hinge cap of FIG. 1 taken along line III-III. FIG. 3 is a top view showing a state in which a cover plate portion of the hinge cap of FIG. 1 is opened; FIG. 5 is a side view of the hinge cap of FIG. 4 as seen from the lateral direction; Figure 5 is a front view of the hinge cap of Figure 4; FIG. 7 is a cross-sectional view of the hinge cap of FIG. 6 taken along line VII-VII. FIG. 4 is an explanatory diagram illustrating the action of the hinge cap shown as one embodiment of the present invention; FIG. 4 is a top view of a hinge cap shown as a second embodiment according to the present invention; FIG. 10 is a side view of the hinge cap of FIG. 9 as seen from the lateral direction; FIG. 10 is a side view of the state in which the cover plate portion of the hinge cap of FIG. 9 is opened, viewed from the lateral direction; FIG. 11 is a top view of a hinge cap shown as a third embodiment according to the present invention; 13 is a side view of the hinge cap of FIG. 12 as seen from the lateral direction; FIG. FIG. 13 is a side view of the state in which the cover plate portion of the hinge cap of FIG. 12 is opened, viewed from the lateral direction;

A hinge cap 1 according to a first embodiment of the present invention will be described below with reference to the drawings.
As shown in FIGS. 1 to 7, the hinge cap 1 of this embodiment includes a cap body 13 having a topped tubular shape to be attached to the mouth W1 of a container body W in which contents are stored, and a first hinge. A portion 14 , a cover plate portion 16 , a second hinge portion 17 , a side plate portion 18 and a third hinge portion 19 are provided. The cap body 13, the first hinge portion 14, the cover plate portion 16, the second hinge portion 17, the side plate portion 18, and the third hinge portion 19 are integrally formed.

A direction intersecting the central axis O when viewed from the axial direction in which the central axis O of the cap body 13 extends is called a radial direction. In the axial direction, the top wall portion 11 side of the cap body 13 is referred to as the upper side, and the open end side of the peripheral wall portion 26 of the cap body 13 is referred to as the lower side.

As shown in FIGS. 3 and 7, the inner peripheral surface of the peripheral wall portion 26 of the cap body 13 is formed with a female screw portion to be screwed into the mouth portion W1. Note that the cap main body 13 may be fitted to the opening W1 by plugging.
As shown in FIGS. 4, 6 and 7, the top wall portion 11 of the cap body 13 is formed with a content pouring hole 12 . A main surface portion 21 , a rear surface portion 22 and a pair of side surface portions 23 are formed on the upper surface of the ceiling wall portion 11 . The main surface portion 21 , the rear surface portion 22 , and the pair of side surface portions 23 are positioned radially inside the outer peripheral edge of the ceiling wall portion 11 .

The main surface portion 21 extends upward from one side to the other side. The pouring hole 12 is formed in the main surface portion 21 . In the illustrated example, the pouring hole 12 is formed in a portion of the main surface portion 21 closer to one side.
Hereinafter, one side will be referred to as the front side, the other side will be referred to as the rear side, and the direction orthogonal to the front-rear direction when viewed from above will be referred to as the lateral direction.

The main surface portion 21 has a quadrangular shape when viewed from above, and is arranged such that a pair of sides extend in the front-rear direction and the remaining pair of sides extend in the lateral direction. When viewed from above, of the outer peripheral edge of the main surface portion 21, the front edge 21h is formed in a curved shape that protrudes forward, and the rear edge 21f and the front edge 21h are located at both ends in the horizontal direction. A pair of side edges 21a connecting the rear edge 21f extends straight.

The rear surface portion 22 extends downward as it goes rearward from the rear edge 21f of the main surface portion 21 . The front edge 22b of the rear surface portion 22 is connected to the rear edge 21f of the main surface portion 21 over the entire lateral length. The lateral length of the rear surface portion 22 increases toward the rear. A lateral outer end 22 d of the rear edge 22 c of the rear surface portion 22 is located laterally outside the main surface portion 21 . The rear surface portion 22 has a quadrangular shape when viewed from above. In the illustrated example, the rear surface portion 22 has a horizontally elongated rectangular shape when viewed from above. The size of the rear surface portion 22 in the front-rear direction is smaller than the size of the main surface portion 21 in the front-rear direction. The rear surface portion 22 is not covered with the cover plate portion 16 and the side plate portion 18 and is exposed to the outside.

The side portions 23 are positioned at both lateral ends of the side edge 21a of the main surface portion 21 and the outer peripheral edge of the rear surface portion 22 in top view, and extend rearward from the front edge 22b. 22a. The side surface portion 23 extends downward with increasing distance from the lateral outer end 21g of the rear edge 21f of the main surface portion 21 . The lower edge 23a of the side surface portion 23 straightly connects the lateral outer edge 21b of the front edge 21h of the main surface portion 21 and the lateral outer edge 22d of the rear edge 22c of the rear surface portion 22 in top view. ing. The side portion 23 has a triangular shape when viewed from the lateral direction.

The cover plate portion 16 is rotatably connected to the top wall portion 11 via the first hinge portion 14 and closes the pouring hole 12 so as to be openable. The cover plate portion 16 covers the entire main surface portion 21 of the top wall portion 11 . When viewed from above, the shape and size of the cover plate portion 16 are the same as the shape and size of the main surface portion 21 . Note that the shape and size of the cover plate portion 16 are not limited to those of the present embodiment, and may be changed as appropriate.

The first hinge portion 14 connects the rear edges 16f and 21f of the cover plate portion 16 and the main surface portion 21, respectively. The first hinge portion 14 extends straight in the lateral direction. The cover plate portion 16 extends upward from the front toward the rear. The lower surface of the cover plate portion 16 is in contact with or close to the main surface portion 21 . A stopper projection 16b is formed on the lower surface of the cover plate portion 16 so as to be detachably fitted into the pouring hole 12. As shown in FIG.

The side plate portion 18 is rotatably connected to both sides of the cover plate portion 16 via the second hinge portion 17 . The second hinge portions 17 are located at both lateral ends of the outer peripheral edge of the cover plate portion 16 when viewed from above, and are connected to side edges 16a extending forward from the rear edge 16f. The second hinge portion 17 is connected over the entire length of the side edge 16 a of the cover plate portion 16 . The rear end of the second hinge portion 17 is connected to the lateral outer end 24 of the first hinge portion 14 . A rear portion 18 a of the side plate portion 18 is positioned rearward of the cover plate portion 16 . A rear portion 18 a of the side plate portion 18 protrudes rearward from the cover plate portion 16 . The width of the side plate portion 18 in the lateral direction becomes narrower as it moves away from the lateral outer end 24 of the first hinge portion 14 in the front-rear direction.

A rear portion 18 a of the side plate portion 18 is rotatably connected to the top wall portion 11 via a third hinge portion 19 . The third hinge portions 19 extend laterally away from each other toward the rear in a top view. In top view, the third hinge portions 19 extend laterally away from each other as they go rearward from the lateral outer end 24 of the first hinge portion 14 . As shown in FIGS. 1 and 5, the third hinge portions 19 are connected to the side edges 22a of the rear surface portion 22 separately. The third hinge portion 19 is connected over the entire length of the side edge 22 a of the rear surface portion 22 . The front end of the third hinge portion 19 is connected to the lateral outer end 24 of the first hinge portion 14 . The rear end of the third hinge portion 19 is connected to the lateral outer end 22 d of the rear edge 22 c of the rear surface portion 22 .

In the side plate portion 18, at least the corresponding portion 25 that straddles the first hinge portion 14 in the front-rear direction is formed to be elastically deformable.
As shown in FIG. 2, the corresponding portion 25 is bent upward and is open laterally and downward. The corresponding portion 25 is formed over the entire lateral length of the side plate portion 18 . A lower edge of the corresponding portion 25 is in contact with or close to the upper surface of the ceiling wall portion 11 . Of the lower edge of the corresponding portion 25, the portion located at the outer end in the horizontal direction is in contact with or close to the flat portion of the upper surface of the ceiling wall portion 11 that continues from the lateral outer side to the side portion 23. . The opening width of the corresponding portion 25 in the front-rear direction narrows upward.

The axial positions of the top portion 25a of the corresponding portion 25 pointing upward and the first hinge portion 14 are equal to each other. A top portion 25a of the corresponding portion 25 continues to the first hinge portion 14 in the horizontal direction without a step. The corresponding portion 25 is formed to be elastically deformable in the front-rear direction.

The size of the corresponding portion 25 in the longitudinal direction is smaller than the size in the longitudinal direction of the portion of the side plate portion 18 located forward of the corresponding portion 25 and is equal to the size in the longitudinal direction of the rear portion 18 a of the side plate portion 18 . ing.
Note that the shape and size of the corresponding portion 25 are not limited to those of the present embodiment, and may be changed as appropriate.

A portion of the side plate portion 18 excluding the corresponding portion 25 extends downward as the distance from the lateral outer end 24 of the first hinge portion 14 increases. The side plate portion 18 abuts on or is close to the side portion 23 of the top wall portion 11 . The lower edge 18b of the side plate portion 18 abuts on or is close to a flat portion of the upper surface of the top wall portion 11 that continues from the outside in the horizontal direction to the side portion 23 over the entire length. The side plate portion 18 covers the entire side surface portion 23 of the ceiling wall portion 11 .

As described above, according to the hinge cap 1 according to the present embodiment, when the cover plate portion 16 blocking the pouring hole 12 is rotated upward around the first hinge portion 14, the side plate portion 18 is opened. also rotates upward around the third hinge portion 19 .

At this time, the pair of third hinge portions 19 extend laterally away from each other as they go rearward from the lateral outer ends 24 of the first hinge portions 14 in top view, and correspond to the side plate portions 18 . 25 is formed to be elastically deformable.
Therefore, in the process of rotating the cover plate portion 16 that closes the pouring hole 12 upward around the first hinge portion 14 , the side plate portion 18 rotates around the second hinge portion 17 . While rotating toward the upper surface side, the corresponding portion 25 of the side plate portion 18 first undergoes tensile deformation toward the front, and then the corresponding portion 25 of the side plate portion 18 undergoes the most tensile deformation, the first hinge of the cover plate portion 16. When the dead center position A (see FIG. 8) around the portion 14 is exceeded, the corresponding portion 25 of the side plate portion 18 is restored and deformed.

As a result, when the cover plate portion 16 is located closer to the pouring hole 12 than the dead center position A along the circumference of the first hinge portion 14, the elastic restoring force of the corresponding portion 25 of the side plate portion 18 causes the cover plate portion 16 to When the portion 16 is urged toward the pouring hole 12 side and the cover plate portion 16 is located on the opposite side of the pouring hole 12 from the dead center position A along the circumference of the first hinge portion 14, the side plate portion 18 The elastic restoring force of the corresponding portion 25 urges the cover plate portion 16 to the opposite side of the pouring hole 12 .
Therefore, when the cover plate portion 16 blocks the pouring hole 12 and an unexpected external force is applied, it is possible to prevent the pouring hole 12 from being opened, and the pouring hole 12 is closed. It is possible to stabilize the position of the cover plate portion 16 around the first hinge portion 14 when the is opened.

The lid plate portion 16 extends upward from the front to the rear, and the portion of the side plate portion 18 excluding the corresponding portion 25 extends downward as it moves away from the lateral outer end 24 of the first hinge portion 14. extending towards.

Therefore, as shown in FIG. 8, the distance between the first hinge portion 14, which is the center of rotation of the cover plate portion 16, and the rear end of the third hinge portion 19, which is the center of rotation of the lower edge 18b of the side plate portion 18, is , and the rotational trajectory X of the front edge of the cover plate portion 16 centered on the first hinge portion 14 is shifted to the lower edge 18b of the side plate portion 18 centered on the rear end of the third hinge portion 19. When the cover plate portion 16 that closes the pouring hole 12 is rotated upward around the first hinge portion 14, the side plate The portion 18 can be easily rotated around the second hinge portion 17 toward the upper surface side of the cover plate portion 16 .

As a result, when the cover plate portion 16 is positioned at the dead center position A along the circumference of the first hinge portion 14, it becomes possible to ensure a large maximum tensile margin B of the corresponding portion 25 of the side plate portion 18. When the lid plate portion 16 is located closer to the pouring hole 12 than the dead center position A along the circumference of the first hinge portion 14, the lid plate portion 16 is biased toward the pouring hole 12 side, and the lid plate When the portion 16 is located on the opposite side of the pouring hole 12 from the dead center position A along the circumference of the first hinge portion 14, the cover plate portion 16 is biased to the opposite side of the pouring hole 12. can be reliably realized.

The main surface portion 21 in which the pouring hole 12 is formed extends upward as it goes from the front to the rear, and the first hinge portion 14 is connected to the rear edge 21f of the main surface portion 21. The pouring hole 12 can be reliably closed by the cover plate portion 16 extending upward toward the rear.

The rear surface portion 22 extends downward as it goes rearward from the rear edge 21 f of the main surface portion 21 . However, since it extends as described above, it is possible to easily realize the side plate portion 18 extending downward as the portion excluding the corresponding portion 25 separates from the lateral outer end 24 of the first hinge portion 14 . can be done.

Next, a hinge cap 2 according to a second embodiment of the invention will be described with reference to FIGS. 9 to 11. FIG.
In the second embodiment, the same reference numerals are assigned to the same components as in the first embodiment, the description thereof is omitted, and only the different points will be described.

In this embodiment, the side plate portion 18 straddles the first hinge portion 14 in the front-rear direction and is formed in a plate shape over the entire area including the corresponding portion 27 formed to be elastically deformable. The facing inner and outer surfaces are located on the same plane over the entire area including the corresponding portion 27 . The entire side plate portion 18 , including the corresponding portion 27 , extends downward with increasing distance from the lateral outer end 24 of the first hinge portion 14 .

The corresponding portion 27 is provided with a curved portion 27a curved so as to protrude in the axial direction in a lateral view. The corresponding portion 27 has a plurality of curved portions 27a connected in the front-rear direction. The curved portions 27a are curved so as to protrude upward in the side view, and the lower ends of the curved portions 27a that are adjacent to each other in the front-rear direction are connected to each other. The corresponding portion 27 presents a wavy shape in the side view. The side view shape of the corresponding portion 27 may be appropriately changed, for example, to a mesh shape.

Among the plurality of curved portions 27a, the upper edge of the curved portion 27a located on the front side is positioned below the upper edge of the curved portion 27a located on the rear side. Each upper end edge of the plurality of curved portions 27a is positioned so as to contact the upper surface of the cover plate portion 16 and the rear surface portion 22 of the ceiling wall portion 11 in the side view. The upper edges of the plurality of curved portions 27a may be positioned below or above the upper surface of the cover plate portion 16 and the rear surface portion 22 of the ceiling wall portion 11 .

In the illustrated example, the front end of the corresponding portion 27 is positioned forward of the first hinge portion 14 and the rear end of the corresponding portion 27 is positioned rearward of the first hinge portion 14 . The corresponding portion 27 has two curved portions 27a, and the position along the front-rear direction of the upper edge of the curved portion 27a located on the rear side is the same as the position along the front-rear direction of the first hinge portion 14. there is The corresponding portion 27 may have one curved portion 27a, or may have three or more curved portions 27a.

The third hinge portion 19 is connected to the rear portion of the side edges 22 a of the rear surface portion 22 . The forward end of the third hinge portion 19 is spaced rearwardly from the lateral outer end 24 of the first hinge portion 14 . That is, when viewed from above, each third hinge portion 19 extends in a direction away from the first hinge portion 14 in the lateral direction as it goes rearward from the lateral outer end 24 of the first hinge portion 14 . may not be connected to the lateral outer ends 24 of the .

As described above, according to the hinge cap 2 of this embodiment, in addition to the effects of the hinge cap 1 of the above embodiment, the side plate portion 18 is formed in a plate shape over the entire area including the corresponding portion 27, Since the inner and outer surfaces of the portion 18 facing the lateral direction are located on the same plane over the entire area including the corresponding portion 27, the corresponding portion 27 can be elastically deformable without protruding laterally. This makes it possible to prevent the hinge cap 2 from being bulky and from deteriorating its appearance.

Next, a hinge cap 3 according to a third embodiment of the invention will be described with reference to FIGS. 12 to 14. FIG.
In addition, in the third embodiment, the same reference numerals are assigned to the same components as those in the first and second embodiments, the description thereof is omitted, and only the different points are described.

In this embodiment, on the upper surface of the ceiling wall portion 11, the main surface portion 31 extending in the horizontal direction orthogonal to the axial direction and having the pouring hole 12 formed therein, and the main surface portion 31 are provided on both sides in the lateral direction, A side surface portion 32 extending downward is formed as it is separated from the main surface portion 31 in the lateral direction.

The side portions 32 are formed at both lateral ends of the upper surface of the top wall portion 11 . A lateral inner edge of the side surface portion 32 extends straight in the front-rear direction and intersects the outer peripheral edge of the upper surface of the ceiling wall portion 11 . That is, the lateral inner edge of the side surface portion 32 forms a circular chord formed by the top surface of the ceiling wall portion 11 when viewed from above.
The main surface portions 31 are provided separately on the upper surface of the ceiling wall portion 11 at portions sandwiched between the side surface portions 32 in the lateral direction and sandwiching the central portion in the front-rear direction. The main surface portion 31 is formed over the entire area of the upper surface of the ceiling wall portion 11 excluding the central portion in the front-rear direction of the portion sandwiched between the side surface portions 32 in the lateral direction. The main surface portion 31 is a hollow portion formed on the upper surface of the ceiling wall portion 11 . A pouring hole 12 is formed in the bottom surface of the main surface portion 31 . The bottom surface of the main surface portion 31 is a flat surface extending in the horizontal direction. In addition, the main surface portion 31 may not be formed by recessing the upper surface of the top wall portion 11, but may be a simple flat surface.
The sizes or numbers of the pouring holes 12 formed in the pair of main surface portions 31 are different from each other.
A portion of the upper surface of the ceiling wall portion 11 surrounded by the pair of side surface portions 32 and the pair of main surface portions 31 is a flat surface extending in the horizontal direction. This portion presents a horizontally elongated rectangular shape when viewed from above.

The upper and lower surfaces of the cover plate portion 33 extend in the horizontal direction, and the cover plate portion 33 is separately provided on each of the two main surface portions 31 . Note that one cover plate portion 33 and one main surface portion 31 may be provided.
The lower surface of the cover plate portion 33 is in contact with the bottom surface of the main surface portion 31 . The cover plate portion 33 is detachably fitted to the main surface portion 31 .

The side plate portion 34 straddles the first hinge portion 14 in the front-rear direction and is formed in a plate shape over the entire area including a corresponding portion 35 formed to be elastically deformable. , and the corresponding portion 35 are located on the same plane. The side plate portion 34 , including the corresponding portion 35 , extends downward as it moves away from the lateral outer end 24 of the first hinge portion 14 . The side plate portion 34 is provided on the side portion 32 . The inner surface of the side plate portion 34 facing inward in the horizontal direction is in contact with the side portion 32 .
The side plate portion 34 is curved so as to protrude in the axial direction in a lateral view. The side plate portion 34 is curved so as to protrude downward when viewed from the side. The side plate portion 34 is curved so as to protrude obliquely downward on the front side in a side view. The side plate portion 34 is elastically deformable as a whole including the corresponding portion 35 .

The side plate portion 34 is connected to an intermediate portion in the front-rear direction of the side edge 33 a of the cover plate portion 33 via the second hinge portion 17 . The second hinge portion 17 is separated forward from the first hinge portion 14 .
The side plate portion 34 is connected via the third hinge portion 19 to a portion of the side surface portion 32 of the top wall portion 11 located behind and below the first hinge portion 14 and the second hinge portion 17 . ing.
The lengths of the second hinge portion 17 and the third hinge portion 19 are equal to each other and shorter than the length of the first hinge portion 14 .

As described above, according to the hinge cap 3 of the present embodiment, in addition to the effects of the hinge caps 1 and 2 of the above embodiment, the side plate portion 34 is formed in a plate shape over the entire area, and the lateral Since the inner and outer surfaces facing the respective directions are located on the same plane over the entire area, the corresponding portion 35 can be formed to be elastically deformable without protruding in the lateral direction.
Since the upper and lower surfaces of the main surface portion 31 and the cover plate portion 33 extend in the horizontal direction, and the cover plate portion 33 is provided on the main surface portion 31, the main surface portion 31 and the cover plate portion 33 are prevented from protruding upward. be able to.
As described above, it is possible to reliably prevent the hinge cap 3 from being bulky and from deteriorating its appearance.
According to the hinge cap 3 of the present embodiment, since the main surface portion 31 and the side plate portions 34 and the like described above are provided, the complication of the molding die can be suppressed as compared with the hinge caps 1 and 2 of the above-described embodiment. can be made and can be manufactured easily.

The present invention is not limited to the above-described embodiments, and can be modified as appropriate without departing from the scope of the invention.

For example, in the first and second embodiments, the lid plate portion 16 extends upward as it goes from the front to the rear, and the portion of the side plate portion 18 excluding the corresponding portion 25, or the entire portion, is the first Although a configuration is shown in which the hinge portion 14 extends downward as it moves away from the lateral outer end 24, the cover plate portion 16 and the side plate portion 18 may be formed flatly extending in the radial direction. You can change it.
In the first and second embodiments, it is not necessary to form the main surface portion 21 and the rear surface portion 22 on the upper surface of the top wall portion 11 .

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

Reference Signs List 1, 2, 3 Hinge cap 11 Ceiling wall portion 12 Spout hole 13 Cap body 14 First hinge portion 16, 33 Cover plate portion 16a, 33a Side edge of cover plate portion 16f, 33f Rear edge of cover plate portion 17 Second hinge portion 18, 34 Side plate portion 18a, 34a Rear portion 19 Third hinge portion 21, 31 Main surface portion 21f, 31f Rear edge of main surface portion 22 Rear surface portion 22a Side edge of rear surface portion 24 Outer edge 25, 27, 35 Corresponding part W Container body W1 Mouth part

Claims (5)

a topped tubular cap body having a content pouring hole formed in the top wall;
a lid plate portion that is rotatably connected to the top wall portion via a first hinge portion and that closes the pouring hole in an openable manner;
A pair of side plate portions rotatably connected to both sides of the lid plate portion via a second hinge portion,
When viewed from above, the first hinge portion is connected to the rear edge of the outer peripheral edge of the cover plate portion, and the second hinge portion is connected to the first hinge portion of the outer peripheral edge of the cover plate portion. Located at both lateral ends of the hinge portion and connected to side edges extending forward from the rear edge,
A rear portion of the side plate portion is positioned rearward of the cover plate portion and is rotatably connected to the top wall portion via a third hinge portion,
each of the third hinge portions extends in a lateral direction away from each other as it goes rearward in a top view,
In the side plate portion, at least a corresponding portion straddling the first hinge portion in the front-rear direction is elastically deformable. The lid plate portion extends upward as it goes from the front to the rear,
2. The hinge cap according to claim 1, wherein a portion of said side plate portion excluding said corresponding portion, or the entirety of said side plate portion, extends downward with increasing distance from the lateral outer end of said first hinge portion. on the upper surface of the ceiling wall,
a main surface portion extending upward from the front to the rear and having the pouring hole formed thereon;
a rear surface portion extending downward toward the rear from the rear edge of the main surface portion;
The first hinge portion is connected to a rear edge of the main surface portion,
The third hinge portions are located at both lateral ends of the outer peripheral edge of the rear surface portion when viewed from above, and are separately connected to side edges extending rearward from the rear edge of the main surface portion. 3. The hinge cap of claim 2, wherein the hinge cap is The side plate portion is formed in a plate shape over the entire area including the corresponding portion,
4. The hinge cap according to any one of claims 1 to 3, wherein the laterally facing inner and outer surfaces of the side plate portions are positioned on the same plane over the entire area including the corresponding portion. on the upper surface of the ceiling wall,
a main surface portion extending in a horizontal direction orthogonal to the axial direction in which the central axis of the cap body extends and having the pouring hole formed thereon;
side portions provided on both sides sandwiching the main surface portion in the lateral direction and extending downward as the distance from the main surface portion in the lateral direction increases,
The upper and lower surfaces of the cover plate portion extend in the horizontal direction, and the cover plate portion is provided on the main surface portion,
The side plate portion is formed in a plate shape over the entire area including the corresponding portion,
2. The hinge cap according to claim 1, wherein laterally facing inner and outer surfaces of said side plate portions are located on the same plane over the entire area including said corresponding portion, and said side plate portions are provided on said side portions. .

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