Integral heat-resisting structure of a disposable drinking cup
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.
1. Field of the Invention
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.
2. Description of the Related Art
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.
Referring to
Referring to
Although the conventional disposable paper cup 10 and plastic cup 20 are convenient, these cups 10, 20 still have the drawback of burning a user's hand easily when the cups 10, 20 contain hot drinks. Therefore, the prior art requires further improvements by providing a heat-resisting drinking cup.
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.
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.
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.
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.
Referring to
The present invention is characterized in that several tens of radial ribs 40 are integrally formed at the bottom of the cup lip 31 of the cup opening as shown in
In
Referring to
The cup body 30 further includes an outwardly protruding circular groove 32 formed on a cup wall corresponding to the bottom of the cup lip 31 of the cup opening. The circular groove 32 is provided for preventing the drink in the cup body 30 from spilling out from the cup opening. In
With the foregoing technical measures, the disposable plastic cup of the present invention can overcome the shortcoming of burning a user's hand easily. In addition, the radial ribs 40 are integrated with the cup body 30 as a whole, and thus there will have no leaking problem of the paper cup. The present invention definitely can overcome the shortcomings of the conventional disposable drinking cup.
With the foregoing technical measures and extensive researches and experiments, the present invention definitely can achieve the expected effects and overcome the foregoing shortcomings of the prior art.
Many changes and modifications in the above-described embodiments of the invention can, of course, be carried out without departing from the scope thereof. Accordingly, to promote the progress in science and the useful arts, the invention is disclosed and is intended to be limited only by the scope of the appended claims.
Claims
1. An integral heat-resisting structure of a disposable drinking cup, comprising: whereby a plurality of radiating fins are formed around the external periphery of the cup opening.
- a) a cup body, integrally formed 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; and
- b) a plurality of radial ribs, integrally formed at the bottom of the cup lip of the cup opening, and extended at least 1.5 mm out from the surface of the cup body but remained within the external periphery of the cup lip of the cup opening, and an interval between two adjacent radial ribs falling within a range of 3˜5 mm, and the height of the each radial rib being less than 10 mm measured downward from the cup lip of the cup opening;
2. The integral heat-resisting structure of a disposable drinking cup as recited in claim 1, wherein the cup body and the radial ribs are made of a polypropylene (PP) material or a polyethylene (PE) material.
3. The integral heat-resisting structure of a disposable drinking cup as recited in claim 1, wherein the radial rib has its upper edge connected to the bottom of the cup lip of the cup opening, and an edge tapered towards the cup body is formed at the bottom of the radial rib.
4. The integral heat-resisting structure of a disposable drinking cup as recited in claim 1, wherein the cup body further comprises a circular groove disposed on a cup wall corresponding to the bottom of the cup lip of the cup opening.
Type: Application
Filed: Jan 23, 2007
Publication Date: Jul 24, 2008
Inventor: Bob Chou (Valley Stream, NY)
Application Number: 11/656,420
International Classification: B65D 81/38 (20060101); B65D 8/00 (20060101);