JP3106360U - electric toothbrush - Google Patents

Abstract

【Task】
Prevents the occurrence of poor conduction and ensures the operation of the brush part for a long time.
[Solution]
Brush portion 1 that is electrically vibrated and brushes teeth, grip portion 2 that is formed in a cylindrical shape so as to support brush portion 1 and can be gripped by hand, and drive energy of brush portion 1 that is housed inside handle portion 2 A battery 3 serving as a source, a lid portion 4 provided on the bottom portion of the handle portion 2 so as to be attachable / detachable, and connected to one pole of the battery 3 provided on the lid portion 4 and a part protruding toward the handle portion 2 side Lead 5 is provided. The lid portion 4 is formed with a lead cover 46 that accommodates most of the lead pieces 52 of the lead 5.
[Selection] Figure 1

Description

  The present invention belongs to a technical field related to an electric toothbrush that brushes teeth by electrically vibrating a brush portion.

  As an electric toothbrush, there is one in which a battery serving as a driving energy source for the brush portion is accommodated in a handle portion formed in a cylindrical shape so as to support the brush portion and be grasped by a hand. Such an electric toothbrush is configured such that a part of the handle portion can be attached / detached, separated, opened / closed, etc. in order to allow replacement of the battery.

  Conventionally, as a battery replacement structure for an electric toothbrush, for example, a lid portion that can be inserted and removed is provided at the bottom portion (opposite side of the brush portion) of the handle portion, and a part of the lid portion is connected to one electrode of the battery. There has been known one provided with a lead protruding toward the handle side.

  This conventional electric toothbrush improves the waterproof property by providing a lid portion avoiding the central portion that the handle portion touches.

  In the above-described conventional electric toothbrush, every time the lid is inserted into or removed from the handle for battery replacement, the protruding portion of the lead collides with the handle or the like, causing bending deformation. There is a problem in that the brush portion does not operate due to poor conduction.

  The present invention has been made in consideration of such problems, and an object of the present invention is to provide an electric toothbrush that can prevent the occurrence of poor conduction and ensure the operation of the brush portion for a long period of time.

  In order to solve the above-described problems, the electric toothbrush according to the present invention employs means described in each claim of the utility model registration request.

  That is, in claim 1, a brush portion that is electrically vibrated and brushes teeth, a handle portion that is formed in a cylindrical shape so as to support the brush portion and can be gripped by a hand, and a brush portion that is housed inside the handle portion A battery serving as a drive energy source, a lid portion detachably provided on the bottom portion of the handle portion, a lead provided on the lid portion and connected to one of the battery poles and a part of the lead projecting toward the handle portion side In the electric toothbrush having the above-mentioned structure, the lid portion is formed with a lead cover that accommodates most of the protruding portion of the lead.

  In this means, most of the protruding part of the lead is protected by the lead cover of the lid part, and even if the lid part is pulled out of the handle part for battery replacement, the protruding part of the lead hits the handle part etc. and bends and deforms. It will not be equal.

  According to a second aspect of the present invention, in the electric toothbrush of the first aspect, the lead protruding portion is formed in a plate shape, and the lead cover of the lid portion is formed in a bowl shape into which the plate protruding portion of the lead is fitted and accommodated. It is characterized by.

  In this means, the plate-like protruding portion of the lead is fitted and accommodated in the hook-shaped lead cover of the lid portion, and the unexpected protrusion of the protruding portion of the lead from the lead cover is prevented.

  In the electric toothbrush according to the present invention, most of the protruding part of the lead is protected by the lead cover of the cover part, and even if the cover part is removed from the handle part for battery replacement, the protruding part of the lead becomes the handle part. Since it does not collide and bend and deform, it is possible to prevent the occurrence of poor conduction and to ensure the operation of the brush part for a long time.

  Further, as the second aspect of the present invention, the lead-shaped protruding portion of the lead is fitted and accommodated in the hook-shaped lead cover of the lid portion, and the lead protruding portion is prevented from being unexpectedly detached from the lead cover. There is an effect that the protruding portion of the lead is more reliably protected.

  Hereinafter, the best mode for carrying out the electric toothbrush according to the present invention will be described with reference to the drawings.

  In this embodiment, the brush part 1, the handle part 2, the battery 3, the cover part 4, and the lead 5 are mainly used.

  The brush portion 1 is electrically vibrated to brush teeth, and a brush 11 made of a large number of synthetic resin wires is implanted on a small plate 12.

  The handle portion 2 is formed in a cylindrical shape so that the brush portion 1 is fixedly or detachably supported and can be gripped by hand. 22 is formed. Inside the handle portion 2, a vibration motor, an electric circuit board, and the like (not shown) are accommodated near the brush portion 1, and a battery 3 is accommodated on the opposite side of the brush portion 1. A switch 6 is provided near the brush portion 1 of the front curved surface 21 for connecting to an electric circuit board and turning on / off the vibration of the brush portion 1.

  The battery 3 serves as a drive energy source for the brush unit 1 (vibration motor), and a cylindrical dry battery that is easily available is employed. As will be described later, the battery 3 is supported by the lid portion 4 and accommodated in the handle portion 2.

  The lid portion 4 is detachably provided on the bottom portion of the handle portion 2 (opposite the brush portion 1). The lid portion 4 is inserted into the handle portion 2 and the insertion portion 41 is inserted into the handle portion. An engaging portion 42 for engaging and retaining the inner wall 2, a cup portion 43 recessed in the insertion portion 41, a protrusion support frame 44 extending axially on the inner surface of the cup portion 43, and an insertion portion 41, a plug portion 45 that is not inserted into the handle portion 2 and a lead cover 46 that protrudes from the insertion portion 41 toward the handle portion 2 side. As shown in detail in FIG. 2, the lead cover 46 is formed in a bowl shape (a U-shape) in which standing plates 46b are provided on both sides of the substrate 46a. The lid 4 is fitted and supported by the support frame 44 on the side of the battery 3 inserted into the cup portion 43.

  The lead 5 is provided on the lid 4 and is connected to the positive pole of the battery 3. The lead 5 is accommodated in the cup portion 43 of the lid 4 and contacts the positive pole of the battery 3. And a plate-shaped lead piece 53 which is bent and protrudes toward the handle portion 2 side. Most of the lead pieces 53 are fitted and accommodated in the bowl-shaped lead cover 46 of the lid portion 4, and a part of the lead pieces 53 is exposed from the bowl-shaped lead cover 46 of the lid portion 4 and is inserted into the handle portion 2 of the lid portion 4. Thus, it is connected to a lead or the like (not shown) connected to the negative electrode of the battery 3 provided inside the handle portion 2.

  According to this embodiment, when the lid portion 4 is inserted into and removed from the handle portion 2 for replacement of the battery 3, most of the protruding portion (lead piece 52) of the lead 5 is protected by the lead cover 46 of the lid portion 4. Is done. Accordingly, since the lead piece 52 of the lead 5 does not collide with the handle portion 2 or the like due to the insertion / extraction of the lid portion 4 with respect to the handle portion 2, the occurrence of poor conduction is prevented and the brush portion 1 is prevented for a long time. Can be ensured. For this reason, durability performance improves.

  In addition, since the plate-like lead piece 52 of the lead 5 is fitted and accommodated in the bowl-shaped lead cover 46 of the lid portion 4 and the lead piece 52 of the lead 3 is prevented from being accidentally detached from the lead cover 46, the lead Protection of the lead piece 52 of the lead 5 by the cover 46 is ensured. For this reason, durability performance improves more.

  As mentioned above, it can apply also to what the battery 3 is supported by the handle part 2 side besides the form shown in figure.

It is a side view of the best form for implementing the electric toothbrush which concerns on this invention. It is an expansion perspective view of the principal part of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Brush part 2 Handle part 3 Battery 4 Lid part 46 Lead cover 5 Lead 52 Lead piece (protrusion part)

Claims (2)

  A brush portion that is electrically vibrated and brushes teeth; a handle portion that is formed in a cylindrical shape so as to support the brush portion and can be grasped by a hand; and a battery that is housed inside the handle portion and serves as a driving energy source for the brush portion In the electric toothbrush provided with a lid portion detachably provided on the bottom portion of the handle portion, and a lead provided on the lid portion and connected to one of the battery poles and partially protruding toward the handle portion side, An electric toothbrush characterized in that a lead cover for accommodating most of the protruding portion of the lead is formed on the lid.   2. The electric toothbrush according to claim 1, wherein the protruding portion of the lead is formed in a plate shape, and the lead cover of the lid portion is formed in a bowl shape in which the protruding portion of the plate shape of the lead is fitted and accommodated. electric toothbrush.

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