JPH0626552U - electric toothbrush - Google Patents

Abstract

(57) [Summary] [Purpose] The purpose is to sufficiently remove the residue left over from food that has become stuck between the teeth. A drive shaft that linearly reciprocates by a motor, a pair of flocked members that are arranged side by side in a direction orthogonal to the linear reciprocating direction of the drive shaft, and a pair of flocked members that accompanies the linear reciprocal motion of the drive shaft. And an interlocking mechanism that linearly reciprocates in different directions.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a brush structure of an electric toothbrush.

[0002]

[Prior art]

 BACKGROUND ART Conventionally, as a brush driving method for an electric toothbrush, there are a rolling method, a linear reciprocating (bus) method, a vibration (vibration) method, and a rotation method. For example, Japanese Patent Application Laid-Open No. 3-73105 discloses an electric toothbrush that can be driven by a linear reciprocating method.

This electric toothbrush has a drive shaft that linearly reciprocates by a motor and a toothbrush body attached to the tip end thereof, and brushes the teeth by linearly reciprocating the entire brush.

[0004]

[Problems to be solved by the device]

 However, with this electric toothbrush, the entire brush only reciprocates in a straight line, so the direction of movement of the brush is limited, and it is not possible to sufficiently remove the residue of food stuck between the teeth. .

[0005]

[Means for Solving the Problems]

 The electric toothbrush according to the present invention comprises a drive shaft that linearly reciprocates by a motor, a pair of flocking members that are arranged in a direction orthogonal to the linear reciprocating motion direction of the drive shaft, and the drive shaft linearly reciprocating motion. An interlocking mechanism for linearly reciprocating the pair of flocked members in different directions is provided.

[0006]

[Action]

 Since the structure of the present invention has the pair of brushes that are implanted on the pair of flocking members that linearly reciprocate in the different directions, the pair of brushes move back and forth in the different directions, and between the teeth. It is possible to fully remove the leftovers of stuck food.

[0007]

【Example】

 FIG. 1 is a perspective view of a brush case of an electric toothbrush according to an embodiment of the present invention. FIG. 2 is a perspective view of the main part of the brush case of FIG. 1 viewed from the back side. Reference numeral 1 denotes a brush case which is made of a tubular body having a flat portion at its tip and which can be freely attached to and detached from a main body portion (not shown) containing a motor, a motor drive power source, a drive circuit, and the like. The flat portion at the front end has a rectangular opening 1a. 2a and 2b are a pair of flocked members arranged in parallel in the opening 1a of the brush case 1, and 3a and 3b are brushes flocked on the respective surfaces of the flocked members 2a and 2b.

Reference numeral 4 denotes a drive shaft that linearly reciprocates by a motor, penetrates through the brush case 1, and has a tip end connected to the flocked member 2 a.

Reference numerals 5 and 5 denote U-shaped seesaw members, and the seesaw members are respectively formed in prismatic recesses 2aa and 2bb formed side by side in the longitudinal direction on the back surfaces of the flocking members 2a and 2b. Is inserted and the flocking members 2a, 2b are connected so as to perform a seesaw motion, and at the same time, a fulcrum 5a for pivotally supporting a hole (not shown) provided in the bottom portion facing the opening 1a of the brush case 1, 5a is provided at the center of the top.

FIG. 3 is a view for explaining the operation of the main part of the present invention. As shown in FIG. 3A, the drive shaft 4 is connected to the drive shaft 4 when it moves downward in the drawing. The flocked member 2a also moves downward. With this movement, the seesaw member 5 that connects the flocked members 2a and 2b in the recess moves in a seesaw motion about the fulcrum 5a, so that the flocked member 2b moves upward in the direction opposite to the movement of the flocked plate 2a. Move. On the other hand, when the drive shaft 4 moves upward as shown in FIG. 3-B, similarly, the flocked member 2a moves upward and the flocked member 2b moves downward. Therefore, due to the linear reciprocating motion of the drive shaft 4, the bristling members 2a and 2b linearly reciprocate in different directions, and the brushes 3a and 3b implanted on the flocking members 2a and 2b also linearly reciprocate in different directions. .

[0011]

[Effect of device]

 The electric toothbrush according to the present invention includes a drive shaft that linearly reciprocates by a motor, a pair of flocking members that are arranged in a direction orthogonal to the linear reciprocating direction of the drive shaft, and a linear reciprocating motion of the drive shaft. Since there is an interlocking mechanism that linearly reciprocates the pair of flocking members in different directions, the pair of brushes flocked on the pair of flocking members linearly reciprocates in different directions and is jammed between the teeth. It is possible to fully remove the leftover food residue.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention.

FIG. 2 is a perspective view of the main part of the present invention viewed from the rear side.

FIG. 3 is an explanatory view of the main operation of the present invention.

[Explanation of symbols]

 1 Brush case 2a, 2b Flocking member 3a, 3b Brush 4 Drive shaft 5 Seesaw member

Claims (1)

[Scope of utility model registration request] 1. A drive shaft linearly reciprocating by a motor, a pair of flocking members arranged in a direction orthogonal to the linear reciprocating direction of the drive shaft, and the pair of flocking members accompanying the linear reciprocating motion of the drive shaft. An electric toothbrush, comprising: an interlocking mechanism that linearly reciprocates the flocked member in different directions.