JPH0242172Y2 - - Google Patents

Description

[Detailed explanation of the idea] (Industrial application field) The present invention relates to a toothbrush exclusively used for tooth surface brushing.

(Prior Art) For example, there is a toothbrush described in Japanese Utility Model Application Publication No. 58-43228.

This toothbrush has a curved mounting rod with bristles on both ends of the inner curved surface, and is capable of brushing the surface of the teeth up to the molars.

(Problem to be solved by the invention) However, since the handle is hung in a T-shape from the center of the mounting rod, and the shape of the handle is rod-shaped, when brushing the molars with one side of the hair, The problem is that the handle easily turns in your hand, making it difficult to polish as desired. Especially in the case of children with weak grip strength, it becomes difficult to sharpen the grip.

The present invention was developed taking these circumstances into consideration, and allows users to freely move the handle while lightly gripping it, in response to the reaction force around the axis that acts on the handle due to polishing with the left and right brush surfaces. We are here to provide you with a useful toothbrush.

(Means for Solving the Problems) The means taken by the present invention to achieve the above-mentioned problems is that the lower half of the handle is inclined diagonally downward from the front side with respect to the upper half of the handle. At the same time, the back of the upper half is formed into three different levels, upper and lower, and hair is implanted in the left and right attachment parts that extend to the left and right sides of the upper end of this handle, passing through the transverse rod and reaching the molar teeth. It is characterized by having a configuration consisting of.

(Function) The left and right horizontal rods allow the attachment part to fully reach the back teeth, making it possible to brush from the front teeth to the back teeth using the brush surface at the attachment part, and the handle on the upper half of the back side. The second to fourth fingers to each of the upper and lower three-tiered sections, the fifth finger to the back side of the lower half, the first finger to the front side of the upper half, and the belly of the hand to the front side of the lower half, respectively. It is designed to be reliable and easy to hold.

(Example) An example of implementation of the present invention will be described in detail below based on the drawings.

A in the figure is a toothbrush, and this toothbrush A has a handle 1 formed in such a manner that the lower half 3 is inclined diagonally downward from the front side with respect to the upper half 2. Flocks 6 are implanted in left and right attachment parts 5, 5 extending to a length reaching the molars via the transverse rod parts 4, 4, respectively.

The handle 1 has a first finger rest part 7 on the front side of the upper half part 2, and a multi-stage shape on the back side from upper to lower part, with a second finger rest part 8 on the first stage part and a second finger rest part 8 on the back side. A third finger rest part 9 is formed in the step part, and a fourth finger rest part 10 is formed in the third step part. The lower half part 3 has a multiple hand resting part 11 on the front side, and a fifth finger resting part 12 is formed on the back side in a part near the achieved bending side with the upper end part 2.

The left and right horizontal rod portions 4, 4 extend in a T-shape from the upper end of the upper half portion 2, and have a slight angle toward the front side.

The left and right mounting parts 5, 5 are the flocked surface 1 on the front side.
3 is formed in a manner that follows the tooth surface, and the brush surface 14 of the flocked hair 6 planted on this flocked surface 13 has a two-step straight shape (Fig. 3) or a curved shape (Fig. 4) along the tooth surface. Figure).

As a result, you can put the brushing side attachment part 5 and the horizontal rod part 4 into your mouth and move them horizontally or vertically to brush your front teeth on the same axis to your back teeth in order. You can improve each one.

(Effect of idea) Therefore, the present invention has the following advantages.

Place your index finger, middle finger, and ring finger on each of the upper and lower three steps on the back side of the upper half of the handle, and place your thumb on the front side of the upper half, and place your little finger on the back side of the lower half. By placing the pads of your hands on the front side, you can fit the upper and lower parts of the handle to the shape of your hands, and grip the handle naturally and without strain. It can sufficiently withstand the reaction force around the axis that acts on the handle during polishing, and allows the brush surface to reliably contact the tooth surface for effective polishing.

The left and right brush surfaces can evenly clean not only the front teeth but also the back teeth, which have a high incidence of cavities.

[Brief explanation of the drawing]

FIG. 1 is a side view showing an embodiment of the toothbrush of the present invention. Figure 2 is a front view. Figure 3 is a plan view. FIG. 4 is a plan view showing another embodiment. In the figure, 1 is the handle, 2 is the upper half, 3 is the lower half, 4 is the horizontal rod, 5 is the attachment part, and 6 is the flocked hair.

Claims (1)

[Scope of utility model registration request] The handle is formed in such a manner that the lower half is slanted diagonally downward from the front side with respect to the upper half, and the back of the upper half is formed in three different levels, upper and lower, with horizontal rods on the left and right of the upper end of the handle. A toothbrush for tooth surfaces that has bristles implanted in the left and right mounting parts, which extend to a length that reaches the back teeth through the upper part of the tooth.