JP7252461B2 - liquid heating container - Google Patents

Description

TECHNICAL FIELD The present invention relates to a liquid heating container for heating and boiling water, such as an electric kettle, and more specifically, to an engagement structure between an inner container containing liquid and an exterior cover covering the inner container. be.

In the electric kettle, a container body provided with heating means is placed on a power base, and power is supplied from the power base to the container body to energize the heating means. The container main body has a lid and a spout on the upper edge, and a handle is arranged on the peripheral edge facing the spout (see Patent Document 1, for example).

In Patent Document 1, the container body has a double structure of an inner container for containing a liquid and an exterior cover for covering the inner container. The exterior cover is approximately C-shaped in plan view, and is attached to the inner container so that the C-shaped notch portion is located on the handle side. An inward projection is formed on the upper end of the outer cover, and the outer cover is positioned on the inner container by hooking the projection so as to rest it on a recess formed in the body of the inner container.

In the exterior cover of Patent Document 1, since the protrusions that engage with the inner container do not appear on the outside, the outer cover can be designed to have a high strength so that these are not deformed.

Japanese Patent No. 6372584

In order to improve the design of the liquid heating container, it is required that the outer cover covers the inner container with a seamless structure. There is However, since the upper edge of the inner container and the exterior cover are molded products made of a single layer of resin, they do not have a stable shape when heated or due to variations in molding. For this reason, a step or gap is likely to occur at the engaging portion between the inner container and the exterior cover.

In general, the spout of the inner container protrudes forward from the upper edge of the inner container, but when the outer cover covers the inner container with a seamless structure, the outer cover protrudes forward along with the spout. shape. Then, when the exterior cover is fitted into the inner container so that the C-shaped notch portion of the exterior cover is on the handle side, it is necessary to pull the exterior cover toward the handle side and neatly fit the exterior cover along the spout of the interior container. . However, since the spout has a protruding structure, even if the outer cover is pulled toward the handle, the force is not well transmitted to the outer cover, and the outer cover bulges outward, causing the inner container and the outer cover, especially the spout, to bulge outward. Steps and gaps tend to occur in the vicinity.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a liquid heating apparatus which has an outer cover engaging structure capable of being well engaged with an inner container while improving the design of the container body.

The liquid heating container of the present invention is
an inner container having a spout on the front upper edge;
an exterior cover that covers the outer periphery of the inner container;
A liquid heating container comprising a container body comprising
An upper edge of the inner container has an outwardly protruding flange, and an upper edge engaging portion is formed on a lower surface of the flange,
The exterior cover has an upper edge engaged portion that engages with the upper edge engaging portion at a position facing the upper edge engaging portion.

The upper edge engaging portion and the upper edge engaged portion are desirably formed in the vicinity of the spout.

It is desirable that one of the upper edge engaging portion and the upper edge engaged portion has a convex shape and the other has a concave shape, and that at least one of them is tapered.

The inner container is formed with a spout engaging portion extending downward from the tip of the spout,
It is preferable that a spout engaging portion that engages with the spout engaging portion is formed at the upper end of the outer cover at a position facing the spout engaging portion.

A peripheral surface engaging portion is formed on the outer peripheral surface of the inner container,
It is preferable that a peripheral engaged portion placed on the peripheral engaging portion is formed on the inner peripheral surface of the exterior cover.

The container body has a handle formed at the rear,
The outer cover may have a substantially C-shape in a plan view having a cutout portion at the rear end thereof, and the cutout portion may be arranged with the handle sandwiched therebetween.

According to the liquid heating container of the present invention, since the inner container and the upper edge of the outer cover are engaged by the upper edge engaging portion and the upper edge engaged portion, the outer cover can be prevented from expanding outward. The outer cover can be attached to the inner container while suppressing steps and gaps.

Further, according to the liquid heating container of the present invention, by engaging the spout engaging portion and the spout engaged portion, it is possible to prevent the exterior cover from bulging outward at the spout portion. It can be attached to the inner container by suppressing the gap.

Furthermore, according to the liquid heating container of the present invention, by placing the peripheral engaged portion on the peripheral engaging portion, the outer cover is pushed upward, so that the upper edge engaged portion is engaged with the upper edge engaged portion. It can be pressed against the joint and the engaging force can be improved.

FIG. 1 is a perspective view of an electric kettle. FIG. 2 is a plan view of the container body. FIG. 3 is an exploded perspective view of an inner container and an outer cover. FIG. 4 is a cross-sectional view along line AA of FIG. FIG. 5 is an enlarged view of the circled portion F in FIG. 6 is an enlarged view of the rectangular portion C in FIG. 3. FIG. FIG. 7 is a cross-sectional view along line BB of FIG. FIG. 8 is an enlarged view of the circled portion H in FIG. FIG. 9 is an enlarged view of the circled portion E in FIG. FIG. 10 is an enlarged view of the circled portion D in FIG.

A liquid heating container of the present invention will be described with reference to the drawings. In the following description, a kettle-shaped electric kettle 10 is used as an example of an electric water heater, but the liquid heating container is not limited to the electric kettle 10, and may be a home electric appliance such as a pot or a coffee maker.

As a schematic configuration, the electric kettle 10 includes a kettle-shaped container body 20, a lid 11 attached to the container body 20, and a power base 12 on which the container body 20 is mounted, as shown in FIG.

As shown in FIGS. 1 to 3, the container main body 20 can adopt a double structure in which an outer cover 50 and an inner container 30 for containing water are fitted inside the outer cover 50 .

As shown in FIGS. 1 to 3, the inner container 30 is formed with a pour spout 31 which is generally cylindrical and bulges outward from the front upper edge. A stepped portion 33 recessed inward is formed at a slightly upper portion near the center of the inner container 30 . The stepped portion 33 constitutes a flange with which the seal packing of the lid 11 abuts. The inner container 30 has a shape with a slightly expanded diameter below the stepped portion 33, and as partly shown in FIG. heating plate 35 is attached.

As shown in FIG. 3, the exterior cover 50 is formed in a substantially C shape in plan view, and has a cutout portion 51 formed on the rear side. As shown in FIGS. 1 to 3, the exterior cover 50 has an opening whose upper edge is enlarged in diameter, and has a rounded constricted portion 51 slightly above the center. The portion below the constricted portion 51 has a rounded and swollen shape. As shown in FIG. 1, the outer cover 50 covers the inner container 30 from the vicinity of the upper edge to the lower side in a seamless structure. As shown in FIG. 1, a bottom cover 55 (see FIG. 1) forming the bottom surface of the exterior cover 50 is attached to the lower portion of the exterior cover 50. As shown in FIG.

2, a resin member 22 having a handle 21 is arranged in the notch 51 of the outer cover 50. As shown in FIG. The resin member 22 is attached by being engaged with the inner container 30 and the exterior cover 50 .

Thus, the exterior cover 50 is attached to the inner container 30 by opening the notch 51 to increase the inner diameter, fitting it into the inner container 30 from the front, and pulling the notch 51 rearward. After attaching the outer cover 50 to the inner container 30 , the container main body 20 is formed by attaching the resin member 22 so that the handle 21 is sandwiched between the cutouts 51 of the outer cover 50 . The engagement structure between the inner container 30 and the exterior cover 50 will be described in detail below.

As shown in a cross-sectional view 4 taken along line AA in FIG. 2 and an enlarged view 5 of the circled part F in FIG. The lower surface of the flange portion 41 protruding outward is shaped so that the upper edge of the exterior cover 50 abuts thereon.

More specifically, as shown in FIGS. 4 and 5, the inner container 30 has an upper edge engaging portion 40 formed on the lower surface of the flange portion 41, and the exterior cover 50 has an upper edge engaging portion. An upper edge engaged portion 60 is formed at a position opposed to 40 . In the illustrated embodiment, the upper edge engaging portion 40 has a concave shape, and the upper edge engaged portion 60 has a convex shape. Of course, the upper edge engaging portion 40 may have a convex shape and the upper edge engaged portion 60 may have a concave shape, or each may have an uneven shape. Preferably, one or both of the upper edge engaging portion 40 and the upper edge engaged portion 60 are tapered and chamfered as shown in FIG. .

The upper edge engaging portion 40 and the upper edge engaged portion 60 are desirably formed in the vicinity of the spout 31 where steps and gaps are likely to occur when the exterior cover 50 is attached to the inner container 30 . For example, the exterior cover 50 can have upper edge engaged portions 60, 60 formed symmetrically across the rectangular enclosure C and the spout 31 in FIG. It is formed at a position facing the edge engaged portions 60 , 60 . FIG. 6 is an enlarged view of the rectangular portion C in FIG. 3 and shows the convex upper edge engaged portion 60. As shown in FIG.

Thus, the outer cover 50 can be attached to the inner container 30 without swelling outward by fitting the outer cover 50 so that the upper edge engaging portion 60 engages with the upper edge engaging portion 40 of the inner container 30 . In addition, it is possible to suppress the formation of steps and gaps between the inner container 30 and the outer cover 50, especially in the vicinity of the spout 31 in the front-rear direction.

In addition, in the present invention, the pour spout 31 of the inner container 30 and the exterior facing the spout 31 of the inner container 30 are prevented from forming a step or gap between the spout 31 of the inner container 30 and the exterior cover 50 covering the spout 31 . A spout engaging portion 43 and a spout engaged portion 63 are provided on the cover 50 to engage them.

Details are an enlarged view 7 of the periphery of the spout 31 along the line BB in FIG. 2, an enlarged view of the circled portion H in FIG. 7, and an enlarged perspective view of the circled portion E of the inner container 30 in FIG. It is shown in FIG. 10 of the circled portion D of the exterior cover 50 of FIG. 9 and FIG. As shown in FIGS. 7 to 9, the inner container 30 is formed with a spout engaging portion 43 extending downward from the spout 31 . 7, 8 and 10, the outer cover 50 is provided with a spout engaging portion 63 at a position facing the spout engaging portion 43. As shown in FIGS.

The spout engaging portion 43 is desirably formed so that the lower end thereof is slanted toward the rear, and a recessed drip stopper 44 is formed on the front end side of the spout engaging portion 43 . The spout engaged portion 63 can have a shape in which the tip thereof fits between the spout engaging portion 43 and the inner container 30 forming the outer peripheral surface of the spout 31 . In this embodiment, as shown in FIG. 8, the spout engaged portion 63 is configured to be thin toward the tip, and as shown in FIG. and

Thus, the outer cover 50 can be attached to the inner container 30 without bulging outward by fitting the outer cover 50 so that the spout engaged portion 63 engages with the spout engaging portion 43 of the inner container 30 . Moreover, by fitting them together, the center of the outer cover 50 can be aligned with the center of the inner container 30, so that they can be easily positioned. Furthermore, the engagement between the spout engaging portion 43 and the spout engaged portion 63 suppresses steps and gaps between the inner container 30 and the exterior cover 50, especially steps and gaps in the front-rear direction and the vertical direction. . In addition, the spout engaging portion 43 covers the upper edge of the outer cover 50, and the spout engaging portion 43 is provided with a liquid stopper 44 to prevent the liquid contained in the inner container 30 from dripping. When pouring, the liquid can be prevented from adhering to the exterior cover 50, which is hygienic.

In order to maintain the engaged state between the upper edge engaging portion 40 and the upper edge engaged portion 60, and the spout engaging portion 43 and the spout engaged portion 63, it is necessary to It is desirable to press the upper edge engaging portion 60 and the spout engaging portion 63 of the inner container 30 against the upper edge engaging portion 40 and the spout engaging portion 43 from below.

Therefore, as shown in the circled portion G in FIGS. 3 and 4, the circled portion I in FIG. 7, and FIG. 9 and FIG. The peripheral surface is provided with a peripheral surface engaged portion 66 that is placed on the peripheral surface engaging portion 46 when the exterior cover 50 is fitted to the inner container 30 . Although the details will be described below, the peripheral surface engaging portion 46 and the peripheral surface engaged portion 66 are connected to the outer cover 50 when the peripheral surface engaged portion 66 is placed on the peripheral surface engaging portion 46 . can be pressed upward against the inner container 30, and the peripheral engaged portion 66 is placed on the peripheral engaging portion 46, so that the upper edge engaging portion 40 and the upper edge engaged portion 60 and/or the spout engaging portion 43 and the spout engaged portion 63 are maintained and secured. Embodiments of the peripheral surface engaging portion 46 and the peripheral surface engaged portion 66 are as follows.

3 and 4, the outer peripheral surface of the inner container 30 is provided with one or a plurality of projecting first peripheral surface engaging portions 46a on the stepped portion 33, and the outer cover 50 is provided with a first peripheral surface engaging portion 46a. The inner peripheral surface of the constricted portion 51 is provided with one or a plurality of projecting first peripheral surface engaged portions 66a. In the illustrated embodiment, the first circumferential surface engaging portion 46a is elongated in the circumferential direction, so that when the exterior cover 50 is fitted into the inner container 30, the first circumferential surface engaged portion 66a It is designed to be easily placed on the engaging portion 46a. Then, when the exterior cover 50 is fitted to the inner container 30, the first peripheral engaged portion 66a is placed on the first peripheral engaging portion 46a, and the outer cover 50 faces upward with respect to the inner container 30. By pressing, the engagement state between the upper edge engaging portion 40 and the upper edge engaged portion 60 and/or the spout engaging portion 43 and the spout engaged portion 63 is maintained and secured.

In addition, as shown in the circled portion I in FIG. A second circumferential engaged portion 66b is provided on the inner circumferential surface, the lower surface of which protrudes substantially horizontally. When the exterior cover 50 is fitted to the inner container 30, the lower surface of the second peripheral engaged portion 66b rests on the upper surface of the second peripheral engaging portion 46b, and the outer cover 50 is placed on the upper surface of the second peripheral engaging portion 46b. By pressing 50 upward, the engagement state between the upper edge engaging portion 40 and the upper edge engaged portion 60 and/or the spout engaging portion 43 and the spout engaged portion 63 is maintained. Secured.

Furthermore, as shown in FIGS. 9 and 10, a third peripheral engaging portion 46c may be provided near the upper edge of the inner container 30, and a third peripheral engaged portion 66c may be provided near the upper edge of the exterior cover 50. can. The third peripheral surface engaging portion 46c shown in FIG. 9 is a ridge formed along the outer peripheral surface of the inner container 30, and the third peripheral surface engaged portion 66c shown in FIG. It is a ridge formed along the inner peripheral surface. Then, when the exterior cover 50 is fitted to the inner container 30, the lower surface of the third peripheral engaged portion 66c rests on the upper surface of the third peripheral engaging portion 46c. The cover 50 is pressed upward, and the engagement state between the upper edge engaging portion 40 and the upper edge engaged portion 60 and/or the spout engaging portion 43 and the spout engaged portion 63 is maintained. Secured.

By the peripheral surface engaging portion 46 and the peripheral surface engaged portion 66 described above, the upper edge engaging portion 40 and the upper edge engaged portion 60 and/or the spout engaging portion 43 and the spout engaged portion The engagement state of 63 is maintained and secured in a good state, preventing the exterior cover 50 from swelling outward, and eliminating steps and gaps between the inner container 30 and the exterior cover 50, particularly in the front-rear and vertical directions. Steps and gaps are suppressed.

In the above embodiment, the peripheral surface engaging portion 46 includes the first to third peripheral surface engaging portions 46a, 46b, and 46c, and the peripheral surface engaged portion 66 includes the first to third peripheral surface engaged portion 66a. , 66b and 66c are illustrated, but the peripheral surface engaging portion 46 and the peripheral surface engaged portion 66 are not limited to these.

9 and 10, positioning members 48, 68 are arranged on the outer peripheral surface of the inner container 30 and the inner peripheral surface of the exterior cover 50, respectively, as indicated by reference numerals 48, 68. As shown in FIG. When the outer cover 50 is fitted to the inner container 30, the positioning members 48 and 68 are brought into contact with each other, so that the center of the outer cover 50 can be easily positioned at the center of the inner container 30. By combining the joint portion 40 and the upper edge engaged portion 60, the spout engaging portion 43 and the spout engaged portion 63, or the peripheral surface engaging portion 46 and the peripheral surface engaged portion 66, the exterior cover 50 can be more preferably attached to the inner container 30 .

According to the present invention, the outer cover 50 can cover the inner container 30 in a seamless structure, so that the design can be enhanced. The outer cover 50 can be easily positioned simply by engaging with the inner container 30 by means of the upper edge engaging portion 40 and the upper edge engaged portion 60, the spout engaging portion 43 and the spout engaged portion 63. In addition, outward bulging can be suppressed, and steps and gaps can be reduced. Therefore, the ease of assembly of the container body 20 can also be improved. Furthermore, the present invention is not only excellent in appearance, but also hygienic because it can prevent liquid from entering because there are no steps or gaps.

In addition, the upper edge engaging portion 40 and the upper edge engaged portion 60, the spout engaging portion 43 and the spout engaged portion 63, or the peripheral surface engaging portion 46 and the peripheral surface engaged portion 66 Since each engagement structure has a small shape and form, even if it is formed in the inner container 30 and the outer cover 50, it is difficult to cause shrinkage or escape during molding, does not impair the appearance, and has good design. does not affect

The above description is for the purpose of illustrating the present invention and should not be construed as limiting the invention described in the claims or restricting the scope thereof. Further, the configuration of each part of the present invention is not limited to the above-described embodiment, and of course various modifications are possible within the technical scope described in the claims.

For example, the shapes of the upper edge engaging portion 40 and the upper edge engaged portion 60, and the shapes of the spout engaging portion 43 and the spout engaged portion 63 are not limited to the above embodiments. Moreover, it is preferable to provide both the upper edge engaging portion 40 and the upper edge engaged portion 60, and the spout engaging portion 43 and the spout engaged portion 63, but either one may be provided. do not have.

10 electric kettle (liquid heating container)
20 container body 30 inner container 31 spout 40 upper edge engaging portion 43 spout engaging portion 46 peripheral surface engaging portion 50 exterior cover 60 upper edge engaged portion 63 spout engaged portion 66 peripheral surface engaged Department

Claims (6)

an inner container having a spout on the front upper edge;
an exterior cover that covers the outer periphery of the inner container;
A liquid heating container comprising a container body comprising
An upper edge of the inner container has an outwardly protruding flange, and an upper edge engaging portion is formed on a lower surface of the flange,
The exterior cover has an upper edge engaged portion that engages with the upper edge engaging portion at a position facing the upper edge engaging portion.
Liquid heating container. The upper edge engaging portion and the upper edge engaged portion are formed near the spout,
A liquid heating container according to claim 1. One of the upper edge engaging portion and the upper edge engaged portion has a convex shape and the other has a concave shape, and at least one of them is tapered.
The liquid heating container according to claim 1 or 2. The inner container is formed with a spout engaging portion extending downward from the tip of the spout,
A spout engaged portion that engages with the spout engaging portion is formed on the upper end of the exterior cover at a position facing the spout engaging portion.
The liquid heating container according to any one of claims 1 to 3. A peripheral surface engaging portion is formed on the outer peripheral surface of the inner container,
A peripheral engaged portion placed on the peripheral engaging portion is formed on the inner peripheral surface of the exterior cover,
The liquid heating container according to any one of claims 1 to 4. The container body has a handle formed at the rear,
The exterior cover has a substantially C-shaped plan view with a cutout portion at the rear end, and the cutout portion is arranged to sandwich the handle.
The liquid heating container according to any one of claims 1 to 5.

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