BACKGROUND OF THE INVENTION

1. Field of the invention

The present invention relates to an improvement on a heat-isolating container, more particularly one, which includes a containing main body, and a heat-isolating part secured around the containing main body, and several heat-isolating spaces between the containing main body and the heat-isolating part for preventing the high-temperature heat of a hot drink from rapidly traveling to the heat-isolating part, thus protecting the user's hands.

2. Brief Description of the Prior Art

Cups are usually made of pottery, porcelain, plastics, metal or paper. Although the above-mentioned materials have a certain heat-isolating capability, the outer sides of common cups will become hot in a relatively short length of time after a hot-drink/food is put in the cups. Consequently, the user can't continue holding the cups for a longer period of time.

Takeaway and convenient stores provide much convenience to people, especially working people and those who have to eat outside. In order not to make customers behind them wait too long, people usually don't have drinks and foods packaged, and take them away with bare hands at a takeaway/convenient store immediately after they pay. Their hands will be subjected to high temperature if the foods and drinks are very hot.

A kind of heat-isolating paper cup is available, which includes a main containing part, and an outer enclosing part; the main containing part has an upper opening; the outer enclosing part is positioned around the main containing part, and it has a corrugated surface. The area of contact between the cup and the user's hand is relatively small because of the corrugated surface of the outer enclosing part. Therefore, the user's hands will be subjected to less heat when holding the paper cup containing a hot drink. However, the user still will feel uncomfortable high temperature after holding the cup for a longer length of time.

SUMMARY OF THE INVENTION

It is a main object of the invention to provide an improvement on a heat-isolating container to overcome the above-mentioned problems.

The heat-isolating container of the present invention includes a containing main body, and a heat-isolating part positioned around and secured to the containing main body. The heat-isolating part has several spaced apart outwardly-protruding heat-isolating portions, and several inwardly-protruding coupling portions between the outwardly-protruding heat-isolating portions. The inwardly-protruding coupling portions of the heat-isolating part are joined to an outer circumferential side of the containing main body with heat-isolating spaces existing between the containing main body and the outwardly-protruding heat-isolating portions. Consequently, when a hot drink is contained in the containing main body, high-temperature heat of the hot drink will travel outwards through the containing main body to be absorbed by the air in the heat-isolating spaces, and the hot air will travel outside from the heat-isolating spaces, preventing the user's hands from being subjected to high temperature.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention will be better understood by referring to the accompanying drawings, wherein:

FIG. 1 is an exploded perspective view of the present invention,

FIG. 2 is a lateral sectional view of the present invention,

FIG. 3 is a top view of the present invention,

FIG. 4 is an exploded perspective view of the second preferred embodiment in the present invention, and

FIG. 5 is a lateral sectional view of the second embodiment.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Referring to FIGS. 1 to 3, a first preferred embodiment of a heat-isolating container 1 includes a containing main body 11, and a heat-isolating part 12, both of which can be made of paper. The containing main body 11 has a sealed lower end, and has an opening at an upper end thereof. The heat-isolating part 12 is positioned around the containing main body 11.

The heat-isolating part 12 has several spaced apart outwardly-protruding heat-isolating portions 121, and several inwardly-protruding coupling portions 122, each of which folds with a line-shape, and each of which is between two adjacent ones of the outwardly-protruding heat-isolating portions 121. Furthermore, the heat-isolating part 12 has a smooth connecting portion 123 at a lower end. The heat-isolating part 12 is positioned around and stuck to the containing main body 11 by means of sticky substance applied between an outer circumferential side of a lower end of the containing main body 11 and the connecting portion 123 of the heat-isolating part 12 as well as between an outer side of the containing main body 11 and each of the inwardly-protruding coupling portions 122; thus, the area of contact between the containing main body 11 and each inwardly-protruding coupling portion 122 has a line-shape, and heat-isolating spaces 13 exist between the containing main body 11 and the heat-isolating portions 121 of the heat-isolating part 12, each of which heat-isolating spaces 13 has a through hole 131 at an upper end thereof.

When a hot drink/food is contained in the containing main body 11, high-temperature heat of the hot drink/food will travel outwards through the containing main body 11 to be absorbed by the air in the heat-isolating spaces 13, and the hot air in the heat-isolating spaces 13 will travel outside through the through holes 131 of the heat-isolating spaces 13. And, because the area of contact between the containing main body 11 and each inwardly-protruding coupling portion 122 is in the shape of a line, the area of contact between the inwardly-protruding coupling portions 122 and the containing main body 11 is relatively small. Consequently, heat will travel to the heat-isolating part 12 at a relatively low speed, and a person won't be subjected to high temperature when holding the container 1.

FIGS. 4 and 5 show a second preferred embodiment of a heat-isolating container in the present invention, which includes a containing main body 11, and a heat-isolating part 12â€² positioned around the containing main body 11. The heat-isolating part 12â€² has several spaced apart outwardly-protruding heat-isolating portions 121â€², and several inwardly-protruding coupling portions 122â€², each of which folds with a line-shape, and each of which is between two adjacent ones of the outwardly-protruding heat-isolating portions 121â€². The heat-isolating part 12â€² is positioned around and securely joined to the containing main body 11 with the inwardly-protruding coupling portions 122â€² touching an outer side of the containing main body 11; thus, the area of contact between the containing main body 11 and each inwardly-protruding coupling portion 122â€² has a line-shape, and heat-isolating spaces 13â€² exist between the containing main body 11 and the heat-isolating portions 121â€² of the heat-isolating part 12, each of which heat-isolating spaces 13â€² has an upper through holes 131â€² at an upper end, and a lower though hole 132â€² at a lower end thereof.

When a hot drink/food is contained in the containing main body 11, high-temperature heat of the hot drink/food will travel outwards through the containing main body 11 to be absorbed by the air in the heat-isolating spaces 13â€², and the hot air in the heat-isolating spaces 13â€² will travel outside through the upper through holes 131â€², and cool air into the heat-isolating spaces 13â€² through the lower through holes 132â€² by convection. Consequently, heat in the heat-isolating spaces 13â€² will be more rapidly dissipated owing to convection.

From the above description, it can be seen that the present invention has the following advantages:

1. Because heat-isolating spaces with upper through holes exist between the containing main body and the heat-isolating part, air will absorb and dissipate the high-temperature heat of a hot drink/food when the hot drink/food is contained in the containing main body. Consequently, a person won't be subjected to high-temperature heat when holding such a container containing a hot drink/food.

2. Because heat-isolating spaces with upper and lower through holes exist between the containing main body and the heat-isolating part, air in the heat-isolating spaces will absorb and dissipate the high-temperature heat of a hot drink/food by convection when the hot drink/food is contained in the containing main body. Consequently, heat will be rapidly dissipated.

3. Because the inwardly-protruding coupling portions of the heat-isolating part fold to have a line-shape, the area of contact between the inwardly-protruding coupling portions of the heat-isolating part and the containing main body is relatively small.