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Manual toothbrush with movable head

a technology of manual toothbrushes and head, which is applied in the field of oral implements, can solve the problems of limited movement of the moving components within the brush head, and achieve the effect of improving the overall movement of the moving parts

Inactive Publication Date: 2009-02-12
DENNEY CHRISTOPHER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The total movement of the moving components within the brush head is very limited.

Method used

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  • Manual toothbrush with movable head
  • Manual toothbrush with movable head
  • Manual toothbrush with movable head

Examples

Experimental program
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Effect test

first embodiment

[0035]Referring to FIGS. 3A-4B, 6&7, head 14 is provided with two movable bases 52, 54 that are designed to arcuately move in response to a combination of the reciprocation of handle 12 and the frictional engagement of bristles 16 with the surface of the user's teeth. Movable bases 52, 54 are substantially identical. The following description therefore is made with reference to movable base 52, but it will be understood that it applies equally to movable base 54. Movable base 52 comprises a generally rectangular member 60 that is formed with a narrower saddle region 62 in the middle of the rectangular member 60 and a pair of rounded outside ends 64, 66. Member 60 includes an interior surface 60a (FIG. 4A) and an exterior surface 60b (FIG. 3A). Interior surface 60a of member 60 includes pair of spaced apart drive pins 68, 70 that extend outwardly away therefrom. Drive pins 68, 70 are positioned proximate ends 66 and 64, respectively and toward the peripheral outer edge 65 of member 6...

second embodiment

[0045]FIGS. 8 & 9, show a toothbrush in accordance with the present invention and generally indicated at 110. Toothbrush 110 includes substantially all of the same features as toothbrush 10 with the exception that the movable bases 152 and 154 are substantially circular in shape. Movable bases 152, 154 are received within circular recesses 134, 136 in front cover 130. The fingers 124,126 on extension 122 are non-releasably engaged with drive pins 168, 170. Drive pins 168, 170 are positioned proximate the peripheral outer edge 190, 192 of movable bases 152,154. Movable bases 152, 154 are caused to move in a substantially circular motion around a central pivot point by shaft 120 and extension 122 as handle 112 is reciprocated back and forth along the longitudinal axis “Y” of toothbrush 110. Movable bases 152 and 154 therefore effectively have a center pivot in that they rotate within recesses 134, 136, but have a side drive pin 168, 170. The effective difference between the two embodi...

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Abstract

A manual toothbrush including a handle that reciprocates into and out of a channel within a head of the toothbrush. The head includes a plurality of fixed first bristles and a first movable base that has a plurality of second bristles extending outwardly therefrom. A first end of the handle is non-releasably connected to the first movable base within the channel in the head. The first movable base is mounted for arcuate movement in response to the reciprocation of the handle when the first and second bristles frictionally engage the teeth of the user.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This is a Continuation Application of U.S. patent application Ser. No. 11 / 592,908, filed Nov. 3, 2006, the entire specification of which is incorporated herein.BACKGROUND OF THE INVENTION[0002]1. Technical Field[0003]This invention generally relates to oral implements. More particularly, the invention relates to a toothbrush. Specifically, the invention relates to a manual toothbrush having a handle that reciprocates within a channel formed in the head of the toothbrush and thereby causes arcuate movement of some of the bristles on the toothbrush head.[0004]2. Background Information[0005]Many people brush their teeth with a manually operated toothbrush. These brushes are ideally used by positioning the bristles at a 45-degree angle to the gum line and applying a reciprocating back and forth motion to cause the tips of the bristles to move over the surfaces of the teeth. This motion causes the bristle tips to travel across the surface of ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A46B9/04
CPCA46B2200/1066A46B7/08
Inventor DENNEY, CHRISTOPHERDICKIE, ROBERT G.
Owner DENNEY CHRISTOPHER
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