L-shaped tooth brush with variable brush direction

Abstract

Abstract PURPOSE:To make an action of tooth brushing easy so as to reduce the degree of fatigue by attaching a handle to one end of a brush part at right angle so that the brushing can be performed in parallel to the teeth with only up and down movement of hand. CONSTITUTION:A shaft 3 is rotatably supported at the upper part of a handle 1, and one side of the shaft 3 forms a quadrangular pyramid type taper along its top direction. A brush 2 is detachably inserted/fixed by one action to the taper part of the shaft 3 and a knob 4, with which the direction of the brush can be changed, is attached to the other end of the shaft 3. And, the handle 1 and the shaft 3 are connected together at respective ends through rectangular grooves with which both can engage each other. The knob 4 is pressed, rotated and released at an optional angle so as to change the direction of the brush, then the knob is replaced to a position, through an enclosed spring 5, where the rectangular grooves engages with each other to keep the condition. Meanwhile, only a brush part may be replaced according to wear of the brush. In this way, good health condition of men can be secured by making the action of tooth brushing easy.

Inventors

• 👤 Masaaki Harada
• 👤 原田　雅秋

Bibliographic Details