JPS6240932U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図ないし第５図は本考案の一実施例を示す
もので、第１図イは防水キヤツプの縦断面図、同
ロは同じく底面図、第２図は防水キヤツプの変形
状態を示す説明図、第３図は全体構造を示す縦断
面図、第４図は第３図のＡ―Ａ断面図、第５図は
要部の分解斜視図、第６図イは本考案の他の実施
例における防水キヤツプの縦断面図、同ロは同じ
く平面図である。 １，１′……防水キヤツプ、２……取付筒部、
３……軸保持筒部、４，４′……周側部、５，５
′……薄肉部、６……ケーシング、２４……駆動
軸、２５……歯ブラシ。 Figures 1 to 5 show an embodiment of the present invention, in which Figure 1A is a vertical sectional view of the waterproof cap, Figure 1B is a bottom view, and Figure 2 is an explanation showing the deformed state of the waterproof cap. 3 is a vertical sectional view showing the overall structure, FIG. 4 is a sectional view taken along line AA in FIG. 3, FIG. 5 is an exploded perspective view of the main parts, and FIG. A vertical cross-sectional view of the waterproof cap in the example, and the same figure is a plan view. 1, 1'...Waterproof cap, 2...Mounting cylinder part,
3... Shaft holding cylinder part, 4, 4'... Circumferential side part, 5, 5
'... Thin wall part, 6... Casing, 24... Drive shaft, 25... Toothbrush.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ケーシングの端部に突設した駆動軸に歯ブラシ
を取り付け、前記歯ブラシを前記駆動軸の軸方向
に往復駆動する電動歯ブラシにおいて、中心に前
記駆動軸が嵌着する小径の軸保持筒部と、前記ケ
ーシングの周側面端部に取り付けた大径の取付筒
部と、前記軸保持筒部と取付筒部とを連結する略
円錐台形状の周側部とで構成した防水キヤツプを
備え、前記防水キヤツプの周側部に前記駆動軸と
同心円状に薄肉部を配設したことを特徴とする電
動歯ブラシ。 A toothbrush is attached to a drive shaft protruding from an end of a casing, and the toothbrush is reciprocated in the axial direction of the drive shaft. The waterproof cap includes a large-diameter mounting cylinder attached to an end of the circumferential side of the casing, and a substantially truncated conical circumferential side that connects the shaft holding cylinder and the mounting cylinder. An electric toothbrush characterized in that a thin wall portion is disposed on a circumferential side of the toothbrush concentrically with the drive shaft.