Toothbrush
The toothbrush has a triple cross array of tufts of bristles. The tufts are disposed in rows which are disposed on a diagonal relative to longitude and axis of the toothbrush. In addition, alternating rows of the tufts have the tufts inclined at an acute angle to the base of the toothbrush and in crisscrossing relation to the tufts of the adjacent row.
This invention relates to a toothbrush. More particularly, this invention relates to a bristle arrangement for the head of a toothbrush.
As is known, various types of toothbrushes and attachments for electric toothbrushes have been provided with arrays of tufts of bristles to accomplish the cleaning of teeth. In some cases, the tufts of bristles have been skewed at an angle to the more conventional perpendicular relationship to the head of a toothbrush. Skewing of the tufts has been intended to facilitate the cleaning of debris from the spaces between the teeth of a user.
It is an object of this invention to provide an array of tufts for a toothbrush head that will efficiently clean the teeth of a user.
It is another object of the invention to provide a toothbrush for efficiently cleaning the teeth of a user.
It is another object of the invention to provide a toothbrush that is comfortable for a user to use.
Briefly, the invention provides a head for a toothbrush that has a triple cross array of tufts of bristles. In particular, the invention provides a head for a toothbrush comprised of a body having an elongated shape along a longitudinal axis and a plurality of rows of tufts of bristles mounted on the body with at least some of these rows being disposed at an acute angle to the longitudinal axis of the body. In addition, the tufts in these rows are disposed at an acute angle to the plane of the body as well as in criss-crossing relation to the tufts in an adjacent row.
In one embodiment, the triple cross arrangement of tufts is used on a conventional toothbrush having a body of elongated shape along a longitudinal axis of the toothbrush. The rows of tufts are mounted on the head of the body with the rows being disposed at an acute angle, for example of 27°, to the longitudinal axis of the body. In addition, the tufts in each of the rows is disposed at an acute angle, for example of 18°, to the plane of the body and in criss-crossing relation to the tufts in an adjacent row.
In addition, a retainer wall is mounted on the body of the toothbrush and is located at the rear-most tuft at the end of each row of tufts for restraining the bristles of the rear-most tuft from deforming during use. This retainer wall may be made of plastic suitable for use on the toothbrush and is typically one-half the height of the adjacent tuft and slightly wider than the tuft in order to protect the bristles of the tuft from being permanently deformed due to pressures exerted during use.
These and other objects and advantages of the invention would become more apparent from the following detailed description taken in conjunction with the accompanying drawings wherein:
Referring to
The toothbrush 1 also has a plurality of rows a, b of tufts 3, 4 that are mounted on the body 2 in a conventional fashion (not shown). The rows a, b of tufts 3, 4 are disposed at an acute angle A, for example 27°, to the longitudinal axis X-X of the body 2.
Referring to
Similarly, referring to
The tufts 3,4 are each formed of a plurality of bristles of conventional material and need not be further described.
Referring to
Referring to
The tufts 3, 4 in each row a, b are spaced apart on a centerline-to-centerline distance G that is two and one-quarter times the predetermined diameter (i.e. G=2.25 D). (See
As illustrated in
Referring to
The tufts 3, 4 are skewed at a tangential ratio of 1 tuft diameter in the transverse direction to two tuft diameters in the longitudinal direction thereby providing a tangential ratio that produces an angle A of 270 relative to the longitudinal axis X-X.
Referring to
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Further, as indicated in
Referring to
The triple cross toothbrush provides for scrubbing of a wider area during a back and forth movement of the brush as contrasted to the single cross brush effect indicated in
The invention thus provides a toothbrush that can efficiently and comfortably clean the surface of teeth including the cavities and valleys between the teeth sidewall and crowns.
Claims
1. A head for a tooth brush comprising
- a body having an elongated shape along a longitudinal axis; and
- a plurality of rows of tufts mounted on said body, at least some of said rows of tufts being disposed at an acute angle to said longitudinal axis of said body,
- said tufts in each of said some of said rows of tufts being disposed at an acute angle to the plane of said body and in criss-crossing relation to said tufts in an adjacent row of tufts of said some of said rows of tufts.
2. A head for a tooth brush as set forth in claim 1 wherein said some of said rows of tufts are disposed at an acute angle of 27° to said longitudinal axis of said body.
3. A tooth brush comprising
- a body having an elongated shape along a longitudinal axis; and
- a plurality of rows of tufts mounted on said body, said rows of tufts being disposed at an acute angle to said longitudinal axis of said body, said tufts in each of said rows of tufts being disposed at an acute angle to the plane of said body and in crisscrossing relation to said tufts in an adjacent row of tufts.
4. A toothbrush as set forth in claim 3 wherein said rows of tufts are disposed at an acute angle of 27° to said longitudinal axis of said body.
5. A tooth brush as set forth in claim 4 wherein said tufts in each said row are parallel and at an acute angle of 18° to said plane of said body.
6. A tooth brush as set forth in claim 3 wherein said tufts in each said row are parallel and at an acute angle of 18° to said plane of said body.
7. A toothbrush as set forth in claim 3 wherein each said tuft includes a plurality of bristles.
8. A tooth brush as set forth in claim 7 further comprising a retainer wall mounted on said body and located at one end of each said row of tufts for restraining said bristles of said tufts thereat from deforming during use.
9. A toothbrush as set forth in claim 8 wherein each said wall is parallel and spaced from a rearmost tuft in a respective row of tufts.
10. A toothbrush as set forth in claim 9 wherein each said wall is one-half the height of an adjacent tuft.
11. A toothbrush as set forth in claim 3 wherein said body is of a rectangular shape.
12. A tooth brush as set forth in claim 3 wherein each said tuft has a predetermined diameter and said tufts in each said row are spaced apart on a centerline-to-centerline distance of twice said predetermined diameter.
13. A toothbrush as set forth in claim 12 wherein said rows of tufts are spaced apart from each other.
Type: Application
Filed: Jun 3, 2004
Publication Date: Dec 8, 2005
Inventor: Dougjohn Kim (Caldwell, NJ)
Application Number: 10/859,705