WO2003047388A1 - Toothbrush - Google Patents
Toothbrush Download PDFInfo
- Publication number
- WO2003047388A1 WO2003047388A1 PCT/BR2002/000170 BR0200170W WO03047388A1 WO 2003047388 A1 WO2003047388 A1 WO 2003047388A1 BR 0200170 W BR0200170 W BR 0200170W WO 03047388 A1 WO03047388 A1 WO 03047388A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- handle
- shoulder
- toothbrush
- region
- face
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B5/00—Brush bodies; Handles integral with brushware
- A46B5/02—Brush bodies; Handles integral with brushware specially shaped for holding by the hand
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B5/00—Brush bodies; Handles integral with brushware
- A46B5/02—Brush bodies; Handles integral with brushware specially shaped for holding by the hand
- A46B5/021—Grips or handles specially adapted to conform to the hand
-
- 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 refers, generally, to toothbrushes and, particularly, to a construction for a toothbrush handle having improved ergonomic characteristics, which increase the comfort of the user during the brushing operation of the teeth.
- Toothbrushes should be designed to assure a firm and safe grip of the handle by the user and, consequently, an efficient and comfortable brushing operation of the different parts and surfaces of the dental arcades.
- the toothbrushes In order to allow the user to reach said different parts of the mouth and to brush different surfaces of the teeth, according to different brushing movements, the toothbrushes should have the handle thereof designed for assuring an adequate grip in different operational conditions of rotation of the handle in relation to the user's hand.
- toothbrush handles have been proposed, some handles presenting a circular or polygonal cross section, which is maintained substantially constant along the length of said handle.
- the cross section of the handle suffers dimensional alterations along the length thereof, particularly with regard to its height, in order to form shoulders, which help the axial locking of the handle in relation to the user's hand.
- the rotational locking of the toothbrush is obtained by the cross section of the handle, which is shaped to make difficult the involuntary rotation of the handle around its longitudinal axis.
- the proposed handle comprises: a front shoulder portion, which is preferably formed of an elastomeric insert; a neck, connecting the shoulder portion to the head of the toothbrush; a free end portion with an increased cross section; and a waist provided between the shoulder portion and the free end portion and presenting a width and height slightly inferior to those of the shoulder portion.
- a front shoulder portion which is preferably formed of an elastomeric insert
- neck connecting the shoulder portion to the head of the toothbrush
- a free end portion with an increased cross section and a waist provided between the shoulder portion and the free end portion and presenting a width and height slightly inferior to those of the shoulder portion.
- the handle is also unnecessarily enlarged in regions in which the grip has only the function of directing the movements, as it occurs in the region of the shoulder portion.
- the alterations in the dimension of the cross section along the extension of the handle effectively produce means for retaining or locking the hands . Nevertheless, these retaining means are not designed for leading to a correct and comfortable positioning of the user's fingers around the handle, and for allowing a more precise control of the movements of the head of the toothbrush and, consequently, of the group of bristles.
- the present invention proposes a new construction for a toothbrush, with substantially improved ergonomic characteristics, giving the user more control over the movements to be effected, with the sensation of more comfort and safety when gripping the toothbrush, facilitating and motivating the act of brushing the teeth.
- a toothbrush of the type comprising, usually in a single piece: a head, having a front face constructed to carry a group of bristles, which are developed in any adequate arrangement; an elongated handle, having a free end, an opposite end, a front face, and a rear face; and a neck, connecting the opposite end of the handle to the head.
- the handle comprises a first shoulder defining a thumb supporting front region and which is provided on the front face of the handle at its opposite end; a second shoulder, having opposite sides for supporting the little finger and the ring finger, respectively, and which is provided on the rear face of the handle, spaced from said handle, said first and second shoulders being used when the toothbrush is gripped with the bristles turned to the user; and a thumb supporting rear region, provided on the rear face of the handle, close to its opposite end, in order to be used when the toothbrush is gripped with the bristles turned away from the user.
- the handle has a cross section contour that increases, in a continuous or discontinuous way, from the thumb supporting front region, close to the first shoulder, to the second shoulder.
- the handle may be further provided with a curvature along the length thereof, in order to make the front face convex, and the rear face concave.
- Figure 1 is a lateral elevational view of a possible configuration for the toothbrush of the present invention, incorporating a head with no bristles in this illustration;
- Figure 2 is a top plan view of the toothbrush of figure 1, when observed from the side on which the bristles are mounted to the head.
- Figure 3 is a perspective view of a toothbrush formed with the handle illustrated in figures 1 and 2, said handle being held by the user's hand in a first gripping condition, with the bristles facing the user;
- Figure 4 is a lateral elevational view of the toothbrush, further illustrating, schematically, the forces acting on the different parts of the handle when it is held in the first gripping condition illustrated in figure 3;
- Figure 5 is a perspective view similar to that of figure 3, but illustrating the toothbrush in a second gripping condition, in which the bristles are turned away from the user;
- Figure 6 is a lateral elevational view of the toothbrush, further illustrating, schematically, the forces acting on the different parts of the handle when it is held in the second gripping condition illustrated in figure 5;
- the toothbrush of the present invention comprises, preferably molded in a single piece made of an adequate material , such as polypropylene, a head 10 with an adequate contour and having a front face 10a, which is usually flat and constructed to receive and affix a group of bristles
- the toothbrush further comprises an elongated handle 30, having a free end 31, an opposite end 32, a front face 30a, and a rear face 30b, the handle 30 being connected to the head 10 by means of a neck 40, which also has a front face 40a and a rear face 40b, and a longitudinal extension corresponding to about 1/4 the length of the handle 30.
- the handle 30, the neck 40, and the head 10 are preferably constructed symmetrically in relation to a median longitudinal plane P that intercepts the front and rear faces of these component parts of the toothbrush.
- the handle 30 comprises a first shoulder 33 defining a thumb supporting front region 33a, which is incorporated to the front face 30a of the handle 30, at the opposite end 32 of the latter and, more specifically, in the region where the handle 30 is joined to the neck 40.
- a second shoulder 34 On the rear face 30b of the handle 30, at the free end thereof, is formed a second shoulder 34, presenting two opposite sides for supporting the little finger and the ring finger, respectively, i.e., one finger on each side of the second shoulder 34.
- the first shoulder 33 and the second shoulder 34 are used when the toothbrush is gripped with the bristles 20 facing the user, said gripping being denominated herein as the first gripping condition.
- the present toothbrush has the cross section contour of the handle 30 that increases continuously and progressively, from the thumb supporting front region 33a, close to the first shoulder 33, to the second shoulder 34, when said cross section contour begins to suffer a progressive reduction, preferably by lateral contours, which are slightly curved in a convex way and match with the rounded free end 31 of the handle 30.
- the cross section of the handle 30, and not only its contour increases continuously, from the thumb supporting front region 33a to the second shoulder 34.
- the thickness of the handle 30 is also progressively reduced, from the second shoulder 34, which is provided in a region spaced from the adjacent free end 31 of the handle 30, said thickness being reduced until the rounded free end 31a of the handle 30 matches with the cross section contour of the handle in this region.
- the width of the handle 30 progressively decreases, from the maximum width in the median region of the handle 30 to the free end 31, where said width has a value substantially equal to that of the region where the first shoulder 33 is provided.
- the cross section contour of the handle 30 is progressively reduced from its maximum value at the second shoulder 34, until reaching the free end 31 of the handle 30.
- the handle is constructed to present a distance between the first shoulder 33 and the second shoulder 34 corresponding to about 70-90% the total length of the handle 30, the remaining of said length being completed by the distance of the second shoulder 34 to the free end 31.
- the handle 30 has a curvature that develops along the median longitudinal plane P, intercepting the front and rear faces 30a and 30b of the handle 30, in order to make convex said front face 30a and concave said rear face 30b.
- the curvature of the rear face 30b is made so as to define, at the opposite end 32 of the handle 30, a thumb supporting rear region 35a, to be used when the toothbrush is gripped with the bristles 20 turned away from the user, as illustrated in figure 5, said gripping being denominated herein the second gripping condition.
- the first shoulder 33 and the second shoulder 34 have a width that is equal to the width of the region of the handle 30 where they are provided, said shoulders being defined by ramps matching with the respective front face 30a and rear face 30b, from which they project .
- its front face 30a is defined by a convex arc, extending, with at least one radius of curvature, from the region of the first shoulder 33, to the free end 31a of the handle 30.
- the rear face 30b of the handle 30 is defined by a concave arc, extending, with at least one radius of curvature, from the region of the first shoulder 33, where it defines the thumb supporting rear region 35a, to the free end 31 of the handle 30.
- the rear face 30b of the handle 30, between the second shoulder 34 and the free end 31 is in the form of a rear surface 30c converging with the corresponding portion of the front face 30a of the handle 30 and matching with the second shoulder 34, said rear surface 30c being preferably shaped in a slightly convex way.
- the construction of the handle described above allows that, in the first gripping condition illustrated in figure 3, the user's thumb be seated against the thumb supporting front region 33a, close to the first shoulder 33, whereas the little and the ring fingers are seated on the rear face 30b, close to the second shoulder 34, and the palm of the hand is pressed against the front face 30a, in a convex arc, in the region of the latter close to the second shoulder 34, where both the thickness and the width of the handle 30 are larger.
- the correct positioning of the use's fingers, particularly his thumb in the region with the smallest cross section allows for a more precise directional control of the movements to be imparted to the head 10 of the toothbrush during brushing.
- the thumb remains in an advanced position, anchored by the first shoulder 33, while the other fingers and the palm of the hand find a cross section of larger dimension, with the little finger and the ring finger of the user being each seated on one of the opposite sides of the second shoulder 34, assuring a better and safer prehension of the handle, giving firmness and comfort to the grip.
- the first and the second shoulders 33, 34 induce the user to correctly position his thumb, little finger, and ring finger, making difficult the improper use of the toothbrush.
- the user's thumb is seated against the thumb supporting rear region 35a, on the rear face 30b of the handle 30, while the little and the ring fingers are seated against the front face 30a, in a convex arc, of the handle 30, in the region of said front face 30a with a larger cross section and where the latter becomes convergent in relation to the rear face 30c of the free end 31 of the handle 30.
- the little finger tends to embrace the rear face 30b of the handle 30, close to the second shoulder 34, giving stability to the grip of the handle.
- the increase of the cross section has the effect of improving the prehension of the handle 30, as already mentioned in relation to the first gripping condition.
- the thumb seated on the thumb supporting rear region 35a also remains in an advanced position, facilitating to direct the movements to be imparted to the head 10, i.e., giving more acuity to the movements of the toothbrush.
- the neck 40 has a width that decreases from a value equal to that of the width of the handle 30, at the adjacent region of the first shoulder 33, to a minimum value, at the region where it is connected to the head 10.
- the front face 40a of the neck 40 matches with the first shoulder 33 by means of a concave matching surface 43, usually in the form of a cylindrical surface .
- the neck 40 and the head 10 can present the rear faces 40b and 10b defined in the same convex surface that matches with the concave rear face 30b of the handle 30 by means of the thumb supporting rear region 35a, which is preferably offset from the first shoulder 33.
- the neck 40 and the head 10 can be provided according to a longitudinal direction, which forms, on the side of the front face 30a of the handle 30, an obtuse angle in relation to the longitudinal direction of development of the handle 30, with the neck 30 and at least a certain extension of the handle 30, between the first and the second shoulders 33, 34, being laterally defined, in a plan view, by two rectilinear alignments that mutually converge to the direction of the head 10 and which are symmetrical in relation to the median longitudinal plane P.
- the embodiment illustrated in figures 7 and 8 is a variant from that described above and is firstly distinguished by the fact that the thumb supporting rear region 35a is defined by a third shoulder 35 located opposite to the first shoulder 33 and defined by a ramp that matches with the rear face 30b of the handle 30, from which it projects.
- the third shoulder 35 enhances the thumb supporting rear region 35a.
- the handle now incorporates, in the region of the first and third shoulders 33, 35, a pair of first lateral shoulders 36, which are opposite to each other and slightly project from the contour of the handle 30, each first lateral shoulder 36 being defined by a pair of opposite ramps matching with each other and with the adjacent face of the handle 30, from which projects the respective first lateral shoulder 36.
- the handle 30 further incorporates, on its rear face 30b, a fourth shoulder 37, which maintains with the third shoulder 35 a spacing sufficient to adapt one of the user's fingers, either the forefinger or the thumb tip, upon gripping the handle 30 in the conditions illustrated in figures 3, 4, 5 and 6.
- the fourth shoulder 37 is defined by a pair of opposite ramps, matching with each other and with the rear face 30b of the handle 30, on both sides of the fourth shoulder 37.
- the handle 30 can incorporate a pair of second lateral shoulders 38, opposite to each other and slightly projecting from the contour of the handle 30 in the region of the latter where is provided the fourth shoulder 37, each second lateral shoulder 38 being defined by a pair of opposite ramps, matching with each other and with the adjacent face of the handle 30, from which projects the respective second lateral shoulder 38.
- the constructive variant illustrated in figures 7 and 8 provides a toothbrush, whose handle 30 still maintains a cross section contour that generally increases from the thumb supporting front region 33a to the second shoulder 34, although said increase of the cross section contour is interrupted in the region where the fourth shoulder 37 and the second lateral shoulders 38 are provided.
- the cross section contour of the handle 30 generally increases between the thumb supporting front region 33a and the second shoulder 34, only in the first embodiment illustrated in figures 1-6 said cross section contour increases continuously.
Landscapes
- Brushes (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE60210813T DE60210813T2 (en) | 2001-12-04 | 2002-12-04 | TOOTHBRUSH |
AU2002347232A AU2002347232C1 (en) | 2001-12-04 | 2002-12-04 | Toothbrush |
US10/497,930 US20060048322A1 (en) | 2001-12-04 | 2002-12-04 | Toothbrush |
EP02782552A EP1453397B1 (en) | 2001-12-04 | 2002-12-04 | Toothbrush |
CA002466528A CA2466528A1 (en) | 2001-12-04 | 2002-12-04 | Toothbrush |
JP2003548658A JP4105096B2 (en) | 2001-12-04 | 2002-12-04 | toothbrush |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR0106578 | 2001-12-04 | ||
BRPI0106578-5 | 2001-12-04 | ||
BR0205539A BR0205539A (en) | 2002-11-25 | 2002-11-25 | Toothbrush |
BRPI0205539-2 | 2002-11-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003047388A1 true WO2003047388A1 (en) | 2003-06-12 |
Family
ID=36314068
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/BR2002/000170 WO2003047388A1 (en) | 2001-12-04 | 2002-12-04 | Toothbrush |
Country Status (8)
Country | Link |
---|---|
US (1) | US20060048322A1 (en) |
EP (1) | EP1453397B1 (en) |
JP (1) | JP4105096B2 (en) |
AR (1) | AR037639A1 (en) |
AU (1) | AU2002347232C1 (en) |
CA (1) | CA2466528A1 (en) |
DE (1) | DE60210813T2 (en) |
WO (1) | WO2003047388A1 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USD645252S1 (en) * | 2008-08-15 | 2011-09-20 | Mcneil-Ppc, Inc. | Toothbrush |
USD680747S1 (en) | 2008-09-30 | 2013-04-30 | Dr. Fresh, Llc | Toothbrush feature |
USD658884S1 (en) | 2009-05-27 | 2012-05-08 | Mcneil-Ppc, Inc. | Toothbrush |
CN103449001A (en) * | 2013-08-06 | 2013-12-18 | 徐磊 | Double-bottle structure with jacketed inner bottle |
CN113995224B (en) * | 2016-10-28 | 2023-07-21 | 狮王株式会社 | Toothbrush with tooth brush |
KR20230113407A (en) * | 2016-10-28 | 2023-07-28 | 라이온 가부시키가이샤 | Toothbrush |
USD790701S1 (en) | 2016-12-23 | 2017-06-27 | Henry Figueredo | Handle for a tongue cleaner |
JP7495170B1 (en) | 2023-12-01 | 2024-06-04 | 合同会社7days ok Habit | Toothbrush and manufacturing method thereof |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4780924A (en) * | 1987-10-20 | 1988-11-01 | Hansen Paul D | Tooth brush with removable brush head |
EP0580406A1 (en) * | 1992-07-21 | 1994-01-26 | JOHNSON & JOHNSON CONSUMER PRODUCTS, INC. | Toothbrush having non-slip surface |
WO1997007706A2 (en) | 1995-08-22 | 1997-03-06 | Colgate-Palmolive Company | Toothbrushes |
US5749116A (en) * | 1997-01-13 | 1998-05-12 | Peak Enterprises, Inc. | Tongue hygiene device |
WO2001015567A1 (en) * | 1999-08-31 | 2001-03-08 | Gillette Canada Company | Polypropylene brush body |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2267670A (en) * | 1941-04-26 | 1941-12-23 | Nettie Rosenwasser | Toothbrush |
US3010131A (en) * | 1960-05-23 | 1961-11-28 | Kisky Christian | Toothbrush |
US3067446A (en) * | 1961-11-15 | 1962-12-11 | Walter G Mcgauley | Tooth brushes |
USD270972S (en) * | 1981-07-23 | 1983-10-18 | Oral Ease Inc. | Handle for tooth brush or similar article |
JPH024425U (en) * | 1988-06-21 | 1990-01-11 | ||
JPH0729859Y2 (en) * | 1988-11-08 | 1995-07-12 | サンスター株式会社 | toothbrush |
USD357121S (en) * | 1991-12-27 | 1995-04-11 | Fuentes Manuel A | Toothbrush with handle grip |
JPH0591431U (en) * | 1992-04-30 | 1993-12-14 | 豊 小室 | Toothbrush with one end of the handle as a ring |
JP2602309Y2 (en) * | 1993-01-26 | 2000-01-11 | ライオン株式会社 | toothbrush |
USD416685S (en) * | 1995-03-28 | 1999-11-23 | Gillette Canada Inc. | Toothbrush handle |
US5511276A (en) * | 1995-05-22 | 1996-04-30 | Lee; Kuo-Ming | Toothbrush with replaceable bristle carrier |
US5864915A (en) * | 1996-10-09 | 1999-02-02 | Ra; Dojin | Toothbrush |
JPH10215949A (en) * | 1997-02-03 | 1998-08-18 | Lion Corp | Toothbrush handle |
AU136881S (en) * | 1997-02-19 | 1999-03-29 | Johnson & Johnson Kk | Toothbrush |
US5735012A (en) * | 1997-04-01 | 1998-04-07 | Chesebrough-Pond's Usa Co., Division Of Conopco, Inc. | Resiliently flexible toothbrush |
-
2002
- 2002-12-04 WO PCT/BR2002/000170 patent/WO2003047388A1/en active IP Right Grant
- 2002-12-04 US US10/497,930 patent/US20060048322A1/en not_active Abandoned
- 2002-12-04 AU AU2002347232A patent/AU2002347232C1/en not_active Ceased
- 2002-12-04 AR ARP020104695A patent/AR037639A1/en active IP Right Grant
- 2002-12-04 DE DE60210813T patent/DE60210813T2/en not_active Expired - Fee Related
- 2002-12-04 CA CA002466528A patent/CA2466528A1/en not_active Abandoned
- 2002-12-04 EP EP02782552A patent/EP1453397B1/en not_active Expired - Lifetime
- 2002-12-04 JP JP2003548658A patent/JP4105096B2/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4780924A (en) * | 1987-10-20 | 1988-11-01 | Hansen Paul D | Tooth brush with removable brush head |
EP0580406A1 (en) * | 1992-07-21 | 1994-01-26 | JOHNSON & JOHNSON CONSUMER PRODUCTS, INC. | Toothbrush having non-slip surface |
WO1997007706A2 (en) | 1995-08-22 | 1997-03-06 | Colgate-Palmolive Company | Toothbrushes |
US5749116A (en) * | 1997-01-13 | 1998-05-12 | Peak Enterprises, Inc. | Tongue hygiene device |
WO2001015567A1 (en) * | 1999-08-31 | 2001-03-08 | Gillette Canada Company | Polypropylene brush body |
Also Published As
Publication number | Publication date |
---|---|
AU2002347232C1 (en) | 2008-10-16 |
JP2005510330A (en) | 2005-04-21 |
CA2466528A1 (en) | 2003-06-12 |
EP1453397A1 (en) | 2004-09-08 |
US20060048322A1 (en) | 2006-03-09 |
AU2002347232B2 (en) | 2007-12-06 |
EP1453397B1 (en) | 2006-04-19 |
AR037639A1 (en) | 2004-11-17 |
JP4105096B2 (en) | 2008-06-18 |
DE60210813T2 (en) | 2006-11-23 |
AU2002347232A1 (en) | 2003-06-17 |
DE60210813D1 (en) | 2006-05-24 |
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