WO2015121878A1 - Toothbrush - Google Patents

Toothbrush Download PDF

Info

Publication number
WO2015121878A1
WO2015121878A1 PCT/IT2014/000038 IT2014000038W WO2015121878A1 WO 2015121878 A1 WO2015121878 A1 WO 2015121878A1 IT 2014000038 W IT2014000038 W IT 2014000038W WO 2015121878 A1 WO2015121878 A1 WO 2015121878A1
Authority
WO
WIPO (PCT)
Prior art keywords
toothbrush
seat
head
axis
rotation
Prior art date
Application number
PCT/IT2014/000038
Other languages
French (fr)
Other versions
WO2015121878A8 (en
Inventor
Daniel PICCENNA
Original Assignee
BIGNARDI, Luca
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BIGNARDI, Luca filed Critical BIGNARDI, Luca
Priority to PCT/IT2014/000038 priority Critical patent/WO2015121878A1/en
Priority to US15/117,945 priority patent/US20160353870A1/en
Publication of WO2015121878A1 publication Critical patent/WO2015121878A1/en
Publication of WO2015121878A8 publication Critical patent/WO2015121878A8/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B7/00—Bristle carriers arranged in the brush body
    • A46B7/06—Bristle carriers arranged in the brush body movably during use, i.e. the normal brushing action causing movement
    • A46B7/08—Bristle carriers arranged in the brush body movably during use, i.e. the normal brushing action causing movement as a rotating disc
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B7/00—Bristle carriers arranged in the brush body
    • A46B7/06—Bristle carriers arranged in the brush body movably during use, i.e. the normal brushing action causing movement
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B9/00—Arrangements of the bristles in the brush body
    • A46B9/02—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
    • A46B9/04—Arranged like in or for toothbrushes
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B2200/00—Brushes characterized by their functions, uses or applications
    • A46B2200/10—For human or animal care
    • A46B2200/1066—Toothbrush for cleaning the teeth or dentures

Definitions

  • the present invention relates to a toothbrush. More specifically, the invention relates to a toothbrush of the manual type.
  • toothbrushes of various different forms are widespread on the market, and can be manual or electric.
  • manual toothbrushes have a head provided with bristles, which is fixed with respect to the toothbrush body, and its cleaning action is carried out by the user who grips the toothbrush and moves it according to various different angles.
  • the cleaning action of the head of the toothbrush is not effective, in that for an effective cleaning action it would be necessary to execute a movement that is not linear, but rotary, of the type used by an orbital polisher for polishing materials of various types.
  • toothbrushes in which the head of the toothbrush rotates about its axis, with such axis being substantially perpendicular to the body of the toothbrush.
  • the aim of the present invention is to provide a toothbrush that makes it possible to provide an optimal cleaning action that can be actuated with the user moving the body of the toothbrush in a totally conventional manner.
  • an object of the present invention is to provide a toothbrush that enables the user to obtain a cleaning action that derives from a rotary movement although making rectilinear movements in order to move the toothbrush in contact with the surface of the teeth.
  • Another object of the present invention is to provide a toothbrush that is highly reliable, easily and practically implemented, and low cost.
  • a toothbrush which comprises a toothbrush body that is provided at one end with a cleaning head that is adapted to be accommodated rotatably inside a seat that is defined in said body, for a rotation of said head about an axis thereof, characterized in that said seat and said head are shaped so as to enable a rotation of said head about the axis of said seat, with an axis that is inclined with respect to the axis of said seat.
  • Figure 1 is a perspective view of the toothbrush according to the present invention.
  • Figure 2 is an exploded perspective view of the toothbrush according to the present invention.
  • Figure 3 is a side view of the toothbrush according to the invention, with dotted lines showing the positions that the head can assume during use;
  • Figure 4 is a plan view from below of the toothbrush according to the present invention.
  • Figure 5 is a side view, partially in cross-section, of the toothbrush according to the present invention.
  • Figure 6 is a side view, partially in cross-section, of an enlarged detail of a portion of Figure 5, with dotted lines showing the different operating positions of the head;
  • Figures 7a, 7b, 7c and 7d are views of the toothbrush according to the invention, with the head in a sequence of operating positions.
  • the toothbrush according to the invention which is generally designated by the reference numeral 1 , comprises a toothbrush body 2 that is provided at one end with a cleaning head 3 that is provided with bristles.
  • the body 2 can, for example, be shaped like the handpiece of a dental drill, which is a tool used by dentists for surgical operations.
  • the head 3 is advantageously provided by a body 4 of the head, which is shaped so as to be able to rotate on itself about an axis thereof and at the same time be able to rotate within a seat 5 that is defined in one end of the toothbrush body 2.
  • the seat 5 has a central hole 6 that is connected to a substantially hemispherical portion 7.
  • the base of the hemisphere is substantially convex, with a flat central portion 8 and two lateral portions 9 which are inclined with respect to the flat central portion 8.
  • the body 4 of the head 3 thus has a lower portion 10, which is adapted to be accommodated inside the seat 5, which is also substantially hemispherical and of such size as to be accommodated with play inside the portion 7 of the seat 5.
  • the particular shape of the lower portion 10 of the body 4 of the head enables such lower portion to be accommodated inside the seat 5 and in particular inside the portion 7 of the seat 5.
  • the shape of the portion 10 that is complementary to the shape of the seat 5 enables the body 4 of the head 3 to rotate inside the portion 7 of the seat 5, with a first rotary motion of the head about its own axis, and a second rotary motion of the head that occurs with the portion 10 of the body 4 rotating inside the portion 7 with a rotary motion that brings the axis of the head to be inclined with respect to the vertical.
  • the body 4 of the head uses the inclined portions 9 of the convex base of the portion 7 of the seat 5, thus allowing the body 4 to be inclined, as shown in dotted lines in Figures 3 and 6, in its rotary motion inside the seat 5.
  • the hole 6 of the seat 5 is then connected, through the portion 7 of the seat 5, to a through hole 1 1 that connects it with the exterior of the toothbrush body 2.
  • the shape of the head enables it to perform a rotation about its own axis, combined with a rotation imparted by the movement of the portion 10 of the body 4 inside the portion 7, with an axis that is inclined with respect to the vertical.
  • the movement of the head is shown in particular in Figures 7a-7d.
  • Such combined rotation movements substantially thus reproduce a rotary motion that is similar to that of an orbital polisher, where the polishing tool rotates about its own axis but at the same time is also made to rotate by the movement of the user who manipulates it with his/her arm.
  • the difference is however constituted by the fact that the rotation axis of the head in its movement inside the seat is always angled with respect to the axis of the seat itself.
  • Using the toothbrush according to the invention involves the user simply moving the toothbrush in straight lines and the head 4 rotates on its own inside its seat, thus ensuring the desired cleaning action.
  • the dental handpiece ergonomics of the toothbrush body 2 enables the user to grip the toothbrush in an optimal manner, and thus exert a cleaning action, together with an alternating rotatory action of the cleaning head 3.
  • the toothbrush according to the present invention fully achieves the set aim and objects, in that it makes it possible to obtain a cleaning operation with a combined rotation of the cleaning head, together with a handle of the toothbrush body which is shaped like a dental handpiece.

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  • Brushes (AREA)

Abstract

A toothbrush, which comprises a toothbrush body that is provided at one end with a cleaning head that is adapted to be accommodated rotatably inside a seat that is defined in the body, for a rotation of the head about an axis thereof, the peculiarity of which consists in that the seat and the head are shaped so as to enable a rotation of the head about the axis of the seat, with an axis that is inclined with respect to the axis of the seat.

Description

TOOTHBRUSH
The present invention relates to a toothbrush. More specifically, the invention relates to a toothbrush of the manual type.
As is known, toothbrushes of various different forms are widespread on the market, and can be manual or electric. Usually, manual toothbrushes have a head provided with bristles, which is fixed with respect to the toothbrush body, and its cleaning action is carried out by the user who grips the toothbrush and moves it according to various different angles.
However, the cleaning action of the head of the toothbrush is not effective, in that for an effective cleaning action it would be necessary to execute a movement that is not linear, but rotary, of the type used by an orbital polisher for polishing materials of various types.
Such rotary movement is not however easily possible with manual toothbrushes, or with electric toothbrushes.
Also known are toothbrushes in which the head of the toothbrush rotates about its axis, with such axis being substantially perpendicular to the body of the toothbrush.
In this case too, however, the cleaning action does not meet the rotary movement requirements of the toothbrush.
The aim of the present invention is to provide a toothbrush that makes it possible to provide an optimal cleaning action that can be actuated with the user moving the body of the toothbrush in a totally conventional manner.
Within this aim, an object of the present invention is to provide a toothbrush that enables the user to obtain a cleaning action that derives from a rotary movement although making rectilinear movements in order to move the toothbrush in contact with the surface of the teeth.
Another object of the present invention is to provide a toothbrush that is highly reliable, easily and practically implemented, and low cost.
This aim and these and other objects which will become better apparent hereinafter are achieved by a toothbrush, which comprises a toothbrush body that is provided at one end with a cleaning head that is adapted to be accommodated rotatably inside a seat that is defined in said body, for a rotation of said head about an axis thereof, characterized in that said seat and said head are shaped so as to enable a rotation of said head about the axis of said seat, with an axis that is inclined with respect to the axis of said seat.
Further characteristics and advantages of the invention will become better apparent from the description of preferred, but not exclusive, embodiments of the toothbrush according to the invention, which are illustrated by way of non-limiting example in the accompanying drawings wherein:
Figure 1 is a perspective view of the toothbrush according to the present invention;
Figure 2 is an exploded perspective view of the toothbrush according to the present invention;
Figure 3 is a side view of the toothbrush according to the invention, with dotted lines showing the positions that the head can assume during use;
Figure 4 is a plan view from below of the toothbrush according to the present invention;
Figure 5 is a side view, partially in cross-section, of the toothbrush according to the present invention;
Figure 6 is a side view, partially in cross-section, of an enlarged detail of a portion of Figure 5, with dotted lines showing the different operating positions of the head;
Figures 7a, 7b, 7c and 7d are views of the toothbrush according to the invention, with the head in a sequence of operating positions.
With reference to the figures, the toothbrush according to the invention, which is generally designated by the reference numeral 1 , comprises a toothbrush body 2 that is provided at one end with a cleaning head 3 that is provided with bristles. Conveniently, the body 2 can, for example, be shaped like the handpiece of a dental drill, which is a tool used by dentists for surgical operations.
The head 3 is advantageously provided by a body 4 of the head, which is shaped so as to be able to rotate on itself about an axis thereof and at the same time be able to rotate within a seat 5 that is defined in one end of the toothbrush body 2.
Advantageously, the seat 5 has a central hole 6 that is connected to a substantially hemispherical portion 7.
The base of the hemisphere is substantially convex, with a flat central portion 8 and two lateral portions 9 which are inclined with respect to the flat central portion 8.
The body 4 of the head 3 thus has a lower portion 10, which is adapted to be accommodated inside the seat 5, which is also substantially hemispherical and of such size as to be accommodated with play inside the portion 7 of the seat 5.
The particular shape of the lower portion 10 of the body 4 of the head enables such lower portion to be accommodated inside the seat 5 and in particular inside the portion 7 of the seat 5.
The shape of the portion 10 that is complementary to the shape of the seat 5 enables the body 4 of the head 3 to rotate inside the portion 7 of the seat 5, with a first rotary motion of the head about its own axis, and a second rotary motion of the head that occurs with the portion 10 of the body 4 rotating inside the portion 7 with a rotary motion that brings the axis of the head to be inclined with respect to the vertical. In fact, for rotation, the body 4 of the head uses the inclined portions 9 of the convex base of the portion 7 of the seat 5, thus allowing the body 4 to be inclined, as shown in dotted lines in Figures 3 and 6, in its rotary motion inside the seat 5.
The hole 6 of the seat 5 is then connected, through the portion 7 of the seat 5, to a through hole 1 1 that connects it with the exterior of the toothbrush body 2. The shape of the head enables it to perform a rotation about its own axis, combined with a rotation imparted by the movement of the portion 10 of the body 4 inside the portion 7, with an axis that is inclined with respect to the vertical. The movement of the head is shown in particular in Figures 7a-7d.
Such combined rotation movements substantially thus reproduce a rotary motion that is similar to that of an orbital polisher, where the polishing tool rotates about its own axis but at the same time is also made to rotate by the movement of the user who manipulates it with his/her arm.
The difference is however constituted by the fact that the rotation axis of the head in its movement inside the seat is always angled with respect to the axis of the seat itself.
Using the toothbrush according to the invention involves the user simply moving the toothbrush in straight lines and the head 4 rotates on its own inside its seat, thus ensuring the desired cleaning action.
The dental handpiece ergonomics of the toothbrush body 2 enables the user to grip the toothbrush in an optimal manner, and thus exert a cleaning action, together with an alternating rotatory action of the cleaning head 3.
In practice it has been found that the toothbrush according to the present invention fully achieves the set aim and objects, in that it makes it possible to obtain a cleaning operation with a combined rotation of the cleaning head, together with a handle of the toothbrush body which is shaped like a dental handpiece.
The toothbrush, thus conceived, is susceptible of numerous modifications and variations, all of which are within the scope of the appended claims. Moreover, all the details may be substituted by other, technically equivalent elements.
In practice the materials employed, and the contingent dimensions and shapes, may be any according to requirements and to the state of the art.

Claims

1. A toothbrush, which comprises a toothbrush body that is provided at one end with a cleaning head that is adapted to be accommodated rotatably inside a seat that is defined in said body, for a rotation of said head about an axis thereof, characterized in that said seat and said head are shaped so as to enable a rotation of said head about the axis of said seat, with an axis that is inclined with respect to the axis of said seat.
2. The toothbrush according to claim 1 , characterized in that said head is hemispherical in shape.
3. The toothbrush according to claim 1 , characterized in that said seat has a hemispherical portion, with a convex base.
4. The toothbrush according to one or more of the preceding claims, characterized in that said seat is shaped so as to have a central hole that is connected to said hemispherical portion with a convex base.
5. The toothbrush according to one or more of the preceding claims, characterized in that a portion of said hemispherical seat is connected centrally with a through hole that is adapted to connect said hemispherical portion with the exterior.
6. The toothbrush according to claim 1, characterized in that said toothbrush body (2) is shaped like a dental handpiece.
PCT/IT2014/000038 2014-02-13 2014-02-13 Toothbrush WO2015121878A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/IT2014/000038 WO2015121878A1 (en) 2014-02-13 2014-02-13 Toothbrush
US15/117,945 US20160353870A1 (en) 2014-02-13 2014-02-13 Toothbrush

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IT2014/000038 WO2015121878A1 (en) 2014-02-13 2014-02-13 Toothbrush

Publications (2)

Publication Number Publication Date
WO2015121878A1 true WO2015121878A1 (en) 2015-08-20
WO2015121878A8 WO2015121878A8 (en) 2015-10-15

Family

ID=50687546

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2014/000038 WO2015121878A1 (en) 2014-02-13 2014-02-13 Toothbrush

Country Status (2)

Country Link
US (1) US20160353870A1 (en)
WO (1) WO2015121878A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201900002365A1 (en) * 2019-02-18 2020-08-18 Pennelli Faro S R L ADJUSTABLE BRUSH FOR THE APPLICATION OF FLUID PRODUCTS, ESPECIALLY FOR POWDERING, CREAMY, LIQUID OR SIMILAR PRODUCTS

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1779057A (en) * 1929-11-05 1930-10-21 Tolmach Samuel Toothbrush
WO1995001113A1 (en) * 1993-06-30 1995-01-12 Evodio Galetti Toothbrush
CA2618892A1 (en) * 2002-08-09 2004-02-19 Colgate-Palmolive Company Toothbrush with fixed and movable cleaning elements

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1779057A (en) * 1929-11-05 1930-10-21 Tolmach Samuel Toothbrush
WO1995001113A1 (en) * 1993-06-30 1995-01-12 Evodio Galetti Toothbrush
CA2618892A1 (en) * 2002-08-09 2004-02-19 Colgate-Palmolive Company Toothbrush with fixed and movable cleaning elements

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201900002365A1 (en) * 2019-02-18 2020-08-18 Pennelli Faro S R L ADJUSTABLE BRUSH FOR THE APPLICATION OF FLUID PRODUCTS, ESPECIALLY FOR POWDERING, CREAMY, LIQUID OR SIMILAR PRODUCTS
WO2020170128A1 (en) * 2019-02-18 2020-08-27 Pennelli Faro S.R.L. Swiveling brush for the application of fluid products, particularly for powdery, creamy, liquid products or the like

Also Published As

Publication number Publication date
WO2015121878A8 (en) 2015-10-15
US20160353870A1 (en) 2016-12-08

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