Integral heat-resisting structure of a disposable drinking cup

Abstract

The present invention discloses a heat-resisting disposable drinking cup comprising: a cup body made by a plastic injection molding and having a cup opening disposed at the top of the cup body and folded outward to form a cup lip; several tens of radial ribs integrally formed at the bottom of the cup lip of the cup opening, and the radial rib is extended more than 1.5 mm from the surface of the cup body but remained within the external periphery of the cup lip of the cup opening, and the interval between two adjacent radial ribs falls within a range of 3˜5 mm, and the height of each radial rib is less than 10 mm measured downward from the cup lip of the cup opening; such that radiating fins can be formed around the external periphery of the cup opening.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to a heat-resisting drinking cup, and more particularly to a portable coffee cup having radial ribs integrally formed around the external periphery of a cup opening of the cup for preventing the high-temperature heat from being conducted directly to the outside or a handle of the cup.[0003]2. Description of the Related Art[0004]Drinking coffee or tea becomes an indispensable part of life to coffee or tea drinkers. At an early stage, people usually drink coffee or tea in restaurants or at home, but the style of our living has changed, and chained coffee shops such as “Starbucks” arise. People change their dining and drinking habits, and take-out coffee is a good example of these changes.[0005]Referring to FIGS. 1 and 2 for a traditional disposable drinking cup used for take-out coffee, the drinking cup is a paper cup 10, and thus a joint 11 is disposed at the edge of a cup opening, and such ...

AI Technical Summary

Benefits of technology

[0008]Therefore, it is a primary object of the invention to provide an integral heat-resisting structure of a disposable drinking cup, wherein the heat-resisting structure is integrally formed and has no joint or a risk of causing a leaking problem.

[0009]Another objective of the present invention is to install radiating fins at the external periphery of a cup opening of the disposable plastic cup, so as to prevent a user's hand from touching the surface of the cup body and enhance the effect of preventing a user's hand from getting burned.

[0010]A further objective of the present invention is to use the heat-resisting radiating fins to improve the friction for a user's hand to hold the cup, so as to provide a more secured and convenient grip of the cup.

[0011]In order to achieve the above-mentioned objectives, several tens of radial ribs are integrally formed at the bottom of the cup lip of the cup opening, and the radial ribs 40 are extended at least 1.5 mm from the surface of the cup body, and an interval D between two adjacent radial ribs falls within a range of 3˜5 mm. Meanwhile, the height of each radial rib is less than 10 mm measured downward from the cup lip of the cup opening. In this way, a plurality of radiating fins are formed around the external periphery of the cup opening. In addition, the high-temperature heat can be prevented from being conducted directly to the outside or a handle of the cup.

Problems solved by technology

When a user drinks a hot drink, it is quite often that the user gets burned by the hot drinking cup.

Since the thermally conducting area is too large, therefore heat may be dispersed to the outside easily, and the cup no longer can provide a good heat preserving function anymore.

However, the thermal insulating effect of the plastic cup 20 is not as good as that of the paper cup 10, and thus a user's hand may get burned easily.

The user's hand still will touch the surface of the cup body, and the practical heat-resisting effect is poor.

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