JP3124430U - Interlocking device for electric toothbrush rotary head - Google Patents

Abstract

To provide an interlocking device for an electric toothbrush rotary head that converts a linear motion of a drive end into a reciprocating rotary motion of a passive end.
An interlocking device for an electric toothbrush rotary head mainly uses a Z-shaped linkage as a power coupling between a handle body and a brush board, with one end of the linkage being a horizontal axis and the other end being a vertical axis. The horizontal axis is pivotally connected to the clamping cover, and the interlocking shaft の of the handle body is connected. The vertical shaft is connected to the eccentric vertical shaft hole of the brush board, and the linear motion of the interlocking shaft の of the handle body is reciprocated on the brush board. Convert to a rotary motion.
[Selection] Figure 3

Description

  The present invention relates to an interlocking device for an electric toothbrush rotary head, and is installed inside the brush head of the electric toothbrush to transmit the power source of the handle body to the interlocking structure. The interlocking shaft rod, which is the drive end of the handle body, linearly moves in the axial direction, and the passive end of the brush head of the brush head rotates in a reciprocating manner. It is an interlocking device that converts the linear motion of the drive end to the rotational motion of the passive end.

  The interlocking device for the electric toothbrush rotary head is an interlocking mechanism created corresponding to the shape of the head of the electric toothbrush and the movement of the drive end of the handle body. In the brush type toothbrush, a brush is planted at the lower end of the disc type brush disc and the teeth are brushed by the rotation of the brush disc. Since the driving end of a general handle body is a rotary operation, the interlocking device that connects the driving end and the passive end converts the horizontal rotation operation into the vertical rotation operation. Furthermore, in order to make the structure easy to use, the head main body and the handle main body are usually installed in a straight line in the coaxial direction.

  The present invention mainly uses a Z-shaped linkage as a power connection between the handle body and the brush board, with one end of the linkage being a horizontal axis and the other end being a vertical axis. The horizontal axis is pivotally connected to the clamping cover, and the interlocking shaft の of the handle body is connected. The vertical shaft is connected to the eccentric vertical shaft hole of the brush board, and the linear motion of the interlocking shaft の of the handle body is reciprocated on the brush board. It changes to the type rotary motion.

The invention of claim 1 is an interlocking device for an electric toothbrush rotary head including an engine part of an interlocking device mainly composed of a head body and a lid.
A shaft hole is provided at the front end of the head body, and the dynamic parts of the interlocking device include a rotating shaft inserted into the shaft center of the brush plate and the brush plate, a receding ring, a linkage, a clamping cover and a spring. Has a vertical hole, the sandwiching cover has a cylindrical shape, the opening faces downward, a horizontal axis hole is installed at the upper end, the Z-shaped one end is the horizontal axis, and the other end is the vertical axis. An electric toothbrush rotary head characterized in that the shaft is placed in the horizontal shaft hole of the sandwiching cover, the vertical shaft is pivotally mounted in the vertical shaft hole of the brush board, and the linear motion of the sandwiching cover is transmitted to the brush board for reciprocating rotational movement. As an interlocking device.
The invention of claim 2 is the interlocking device of the electric toothbrush rotary head according to claim 1, wherein the linkage is a Z-shaped one end with a horizontal axis, another end with a vertical axis, The interlocking device of the electric toothbrush rotary head is characterized in that it is a spiral body and the casing has elasticity.

  The interlocking device for the electric toothbrush rotary head of the present invention is provided with a brush head suitable for bending. Besides being easy to design in various brush head shapes, there is an advantage that the electric toothbrush can be used comfortably.

  As shown in FIG. 1, the electric toothbrush mainly includes both parts of a brush head 1 and a handle body 2. Inside the handle body 2, a power output portion such as a battery, a motor and a switch for operation control is installed, and its output end protrudes to the interlocking shaft 21 outside the handle body 2 as shown in the figure. The portion of the brush head 1 is an independent body that is simply installed on the handle body 2, and a brush board 13 on which a brush is installed is installed at the end of the brush head 1. After the brush head 1 is fitted to the handle main body 2, the brush disk 13 is actuated by driving of the power structure portion.

  The interlocking device of the electric toothbrush rotary head of the present invention is shown in a three-dimensional exploded view of the interlocking device of FIG. The static component includes an installation space for an interlocking device composed of a head main body 11 and a lid 12 of the brush head 1, and a brush board 13 is disposed at the front end of the head main body 11, and the installed structure is the main axis of the brush head 1. A shaft hole 113 intersecting with the direction is included. The dynamic parts of the interlocking device include the brush disk 13 and the rotating shaft 131 for inserting and fixing the brush disk shaft center, the reverse rotation ring 17, the linkage 16, the clamping cover 14, and the spring.

  The structure and configuration of the above-described interlocking device are shown in the interlocking device interlocking state display diagram of FIG. Among them, the inside of the head main body 11 of the brush head is an engine part 111 penetrating the front and rear, and the engine part 111 becomes an installation space for main dynamics of the interlocking device. The eaves layer 112 is formed in the same direction as the engine part, and has a radial shaft hole 113 at the front end of the brush head 1. A rotating shaft 131 is fixed on the brush plate 13 of the dynamic part, and the eccentricity of the brush plate 13. A vertical shaft 132 is provided at a position, and a receding ring 17 is put on the end of the rotating shaft 131. The sandwiching cover 14 has a cylindrical shape, the opening of the axial cover hole 141 faces downward, and a receding stopper 145 protruding in the axial direction is provided at the uppermost end of the sandwiching cover 14. A horizontal shaft hole 142 penetrating left and right is installed at the upper end of the sandwiching cover 14, a bottom end of the sandwiching cover 14 is a convex edge 144, and an elastic tank 146 penetrating laterally is installed at the bottom end of the sandwiching cover 14 to cover the hole. 141 has a slightly attractive elasticity. The outer cover of the sandwiching cover 14 is covered with a spring 15, the linkage 16 is Z-shaped, its bottom end is a horizontal shaft 161, slides over the horizontal shaft hole 142 of the sandwiching cover 14, and its tip is a vertical shaft 162. Then, it slides on the vertical shaft 132 of the brush board 13.

  The structure in which this interlocking device is assembled is shown in the interlocking device structure sectional view of the electric toothbrush rotating brush head in FIG. The head body 11 and the lid 12 of the brush head constitute an internal hollow engine part 111. The lower part (opening end) of the engine part 111 is a part where the sandwiching cover 14 slides, the opening of the axial cover hole 141 of the sandwiching cover 14 is downward, and a pair of inward projections 143 are installed in the cover hole 141. The interlocking shaft rod 21 of the handle body is opposed to the inner convexity, and a convex tank 211 recessed around the ring is fitted to the inner projection 143 at the upper end of the interlocking shaft rod 21, and the holding cover 14 is moved by the interlocking shaft rod 21. Move linearly in the axial direction. A retraction stopper 145 at the uppermost end of the sandwiching cover 14 is hooked in the basket 112 of the head body 11 to prevent the sandwiching cover 14 from being removed. The spring 15 of the outer cover 14 is supported at the bottom by the convex edge 144 of the sandwich cover 14, and the uppermost part is supported by one wall surface of the engine unit 111 to help the sandwich cover 14 return downward to the starting point. . The brush disk 13 is installed outside the brush head 1, and its rotation shaft 131 is inserted into the shaft hole 113 of the brush head, and its end is put on the receding stop ring 17 to be used for the operation of rotating the brush head. The horizontal shaft 161 is inserted into the horizontal shaft hole 142 of the sandwiching cover 14, and the vertical shaft 162 at the uppermost end thereof is inserted into the vertical shaft hole (not shown) of the brush board 13, and the interlocking shaft rod 21 at the driving end is moved in the axial direction. It is directly moved and guided to the brush disk 13 which is a passive end, and reciprocating rotational movement is performed.

  The linkage structure of the above-described interlocking device provides power transmission of a brush head having a small curvature, and the present invention provides a slightly different linkage 16A. As shown in the linkage structure of the interlocking device in FIG. 4, the linkage 16A has a horizontal shaft 161A and a vertical shaft 162A at the front and rear ends. This is a brush head structure that is curved and greatly curved.

  The present invention connects the Z-shaped linkage with the drive end of the handle body and the passive end of the brush board, and converts the axial linear motion of the drive end to the reciprocating rotational motion of the passive end. In addition, a brush head suitable for bending is installed. Besides being easy to design in various brush head shapes, the electric toothbrush can be used comfortably.

It is a display of the relationship between the rotary head of the electric toothbrush of the present invention and the handle body. It is a three-dimensional exploded view of the interlocking device of the electric toothbrush rotary head of the present invention. It is an interlocking state display figure of the interlocking device of the electric toothbrush rotary head of the present invention. It is a structure sectional view of the interlocking device of the electric toothbrush rotary head of the present invention. It is an example figure according to the continuous structure of the interlocking device of the electric toothbrush rotary head of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Brush head 11 Head main body 111 Engine part 112 Shaft tank 113 Shaft hole 12 Lid 13 Brush board 131 Rotating shaft 132 Vertical shaft hole 14 Holding cover 141 Cover hole 142 Horizontal shaft hole 143 Inner convex 144 Convex edge 145 Retraction stopper 146 Elastic tank 15 Spring 16 Link 16A Link 161 Horizontal shaft 161A Horizontal shaft 162 Vertical shaft 162A Vertical shaft 163A Housing 17 Reverse lock ring 2 Handle body 21 Interlock shaft

Claims (2)

In the interlocking device of the electric toothbrush rotary head including the engine part of the interlocking device mainly composed of the head body and lid,
A shaft hole is provided at the front end of the head body, and the dynamic parts of the interlocking device include a rotating shaft inserted into the shaft center of the brush plate and the brush plate, a receding stop ring, a linkage, a clamping cover, a spring, etc., at the eccentric position of the brush plate. Has a vertical hole, the sandwiching cover has a cylindrical shape, the opening faces downward, a horizontal axis hole is installed at the upper end, the Z-shaped one end is the horizontal axis, and the other end is the vertical axis. An electric toothbrush rotary head characterized in that the shaft is placed in the horizontal shaft hole of the sandwiching cover, the vertical shaft is pivotally mounted in the vertical shaft hole of the brush board, and the linear motion of the sandwiching cover is transmitted to the brush board for reciprocating rotational movement. Interlocking device. 2. The interlocking device of the electric toothbrush rotary head according to claim 1, wherein the Z-shaped one end is a horizontal axis, the other end is a vertical axis, the horizontal axis and the vertical axis are spiral bodies, and the casing is elastic. An interlocking device for an electric toothbrush rotary head, comprising:

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