KR980008105A - Toothbrush with silicone rubber - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a toothbrush, and more particularly, to a toothbrush having silicone rubber attached to a toothbrush body to impart elasticity, soft texture, and excellent feeling to the user.

Description

Toothbrush with silicone rubber

Since this is a trivial issue, I did not include the contents of the text.

FIG. 1 is a side view illustrating a state in which a cylindrical silicone rubber made by extrusion molding according to the present invention is inserted into a handgrip of a toothbrush handle. FIG.

FIG. 2 is a side view illustrating a state in which a silicone rubber is injection-molded on a toothbrush holder according to the present invention. FIG.

FIG. 3 is a side view illustrating a state in which a silicon rubber sheet is adhered to a handle portion of a toothbrush handle according to the present invention; FIG.

FIG. 4 is an enlarged view of the handle portion of the toothbrush handle for FIG. 1;

FIG. 5 is a plan view of FIG. 2; FIG.

FIG. 6 is a view showing an example of measuring a length at which the toothbrush is bent by the universal testing machine. FIG.

DESCRIPTION OF THE REFERENCE NUMERALS

1: toothbrush 2: toothbrush tofu

3: Brush handle part 4: Silicone rubber

5:

DETAILED DESCRIPTION OF THE INVENTION [

[Object of the invention]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a toothbrush to which a silicone rubber is attached. More particularly, the present invention relates to a toothbrush which is capable of effectively imparting elasticity and soft feeling to a toothbrush body due to excellent elastic action of silicone rubber, will be.

Generally, the toothbrush is largely composed of a toothbrush body 1 and bristles, and the toothbrush body 1 has an important function for facilitating brushing when brushing teeth.

Therefore, the toothbrush holder (1) should be easy to grip on the hand, do not slip smoothly, have excellent impact resistance, durability, and be soft and resilient.

Since the conventional single injection type toothbrush 1 has excellent durability but generally has no soft feeling and is not good in feeling and has no elasticity, it can not perform the function of dispersing the force applied to the toothbrush handle 1 even when brushing the toothbrush 1, It is impossible to effectively remove one of the plaques.

To overcome such a problem, a toothbrush made by attaching a general synthetic rubber to a toothbrush (1) as a method of double injection molding has been widely sold domestically and internationally.

However, these products have less elasticity and hydrophobicity than water-based silicone rubber (4), and have a poor feel when used on a toothbrush (1).

Silicone rubber (4) generally has a stable elasticity over a temperature range of -80 to 250 ° C. and is highly resistant to invariance and durability of various physical properties against temperature, totally hydrophobic to water, non-toxic to human body and chemically and biologically inert .

Accordingly, the toothbrush of the present invention is made by attaching the silicone rubber 4 to a toothbrush body by a method of extrusion molding, injection molding, and bonding, and will be described in detail with reference to the accompanying drawings.

[Example 1]

1, the silicone rubber 4 is easily inserted into the handle 3 in the toothbrush holder 1 having the toothbrush head 2 and the handle 3, A toothbrush made by injection molding a toothbrush and inserting a cylindrical silicone rubber (4) manufactured by extrusion molding into the handle portion (3) of the toothbrush handle.

[Example 2]

Fig. 2 shows a toothbrush with a silicone rubber 4 made by injection molding a silicone rubber 4 in a toothbrush in which a toothbrush holder 1 is injection-molded by general plastic.

[Example 3]

3 shows a toothbrush with a silicone rubber 4 made by adhering a silicone rubber 4 formed on a sheet to a toothbrush 1 using an adhesive 5.

[Comparative Example 1]

A conventional general toothbrush made by a single injection molding using only a general plastic (PP: polypropylene) for a toothbrush (1).

[Comparative Example 2]

A toothbrush made by injection molding a toothbrush (1) with a general plastic and double injection molding using a conventional synthetic rubber (EPDM: ethylene propylene diene monomer).

Hereinafter, the preference and elasticity of the above-mentioned Examples and Comparative Examples were evaluated.

[Experimental Example 1]

Evaluation of preference for palatability and usability

A 20-panel list was used to compare the silicone toothbrush of the present invention prepared in Example 1 with the conventional toothbrush of Comparative Example 1 and Comparative Example 2 for a predetermined period of time (7 days) And the likelihood of usability were measured using the five-point comparison method. The results were as shown in Table 1.

Table 1. Panel Test Results

5: Very good 4: Good

3: Normal 2: Bad

1: very bad

As shown in Table 1, toothbrushes with a silicone rubber (4) were found to be better in terms of preference for palatability and usability than the standard toothbrush products, and it is found that the toothbrush of the present invention is more effective when brushing teeth.

[Experimental Example 2]

Elasticity evaluation of toothbrush

When a uniform load (500 g) was applied to the toothbrush head 2 in the conventional toothbrush of Comparative Example 1 and Comparative Example 2 using the universal testing machine as shown in the following figure, As a result of measuring the bending length of the toothbrush body 1, the results are shown in Table 2.

Table 2. Measurement results of elasticity of toothbrush

As shown in Table 2, the toothbrush with the silicone rubber 4 showed a larger bending value than that of the conventional toothbrush, and it was found that the resilience of the toothbrush body 1 was good because the toothbrush having the silicone rubber 4 had a superior restoring property to the original state. Effective toothbrushing can be achieved by the dispersing action of the force applied to the toothbrush strength.

Although the present invention has been described based on the following examples, the technical scope of the present invention is not limited to these examples.

Claims (4)

A toothbrush having a silicone rubber (4) attached to a toothbrush (1). The toothbrush according to claim 1, wherein the silicone rubber (4) is formed in a cylindrical shape by an extrusion molding method and then inserted into a handle (3) of a toothbrush handle having a cylindrical groove. The toothbrush according to claim 1, wherein the silicone rubber (4) is formed by double injection molding and attached to the toothbrush holder (1). The toothbrush according to claim 1, wherein the sheet-like silicone rubber (4) is adhered to the toothbrush holder (1) using an adhesive. ※ Note: It is disclosed by the contents of the first application.