ES2192797T5 - Toothbrush. - Google Patents

Toothbrush. Download PDF

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Publication number
ES2192797T5
ES2192797T5 ES98956668T ES98956668T ES2192797T5 ES 2192797 T5 ES2192797 T5 ES 2192797T5 ES 98956668 T ES98956668 T ES 98956668T ES 98956668 T ES98956668 T ES 98956668T ES 2192797 T5 ES2192797 T5 ES 2192797T5
Authority
ES
Spain
Prior art keywords
head
bristles
beams
beam
approximately
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
ES98956668T
Other languages
Spanish (es)
Other versions
ES2192797T3 (en
Inventor
Donna Beals
Bradley Castillo
Thomas Craig Masterman
Michael Roberts
Maisie Wong-Paredes
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gillette Canada Inc
Original Assignee
Gillette Canada Inc
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
Family has litigation
Priority to US96829397A priority Critical
Priority to US968293 priority
Priority to US177991 priority
Priority to US09/177,991 priority patent/US6308367B1/en
Application filed by Gillette Canada Inc filed Critical Gillette Canada Inc
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26873851&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2192797(T5) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application granted granted Critical
Publication of ES2192797T3 publication Critical patent/ES2192797T3/en
Publication of ES2192797T5 publication Critical patent/ES2192797T5/en
Anticipated expiration legal-status Critical
Application status is Expired - Lifetime legal-status Critical

Links

Classifications

    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B9/00Arrangements of the bristles in the brush body
    • A46B9/02Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
    • A46B9/04Arranged like in or for toothbrushes
    • A46B9/045Arranged like in or for toothbrushes specially adapted for cleaning a plurality of tooth surfaces simultaneously
    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B5/00Brush bodies; Handles integral with brushware
    • A46B5/02Brush bodies; Handles integral with brushware specially shaped for holding by the hand
    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B5/00Brush bodies; Handles integral with brushware
    • A46B5/02Brush bodies; Handles integral with brushware specially shaped for holding by the hand
    • A46B5/026Grips or handles having a nonslip section
    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B9/00Arrangements of the bristles in the brush body
    • A46B9/02Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
    • A46B9/04Arranged like in or for toothbrushes
    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B2200/00Brushes characterized by their functions, uses or applications
    • A46B2200/10For human or animal care
    • A46B2200/1066Toothbrush for cleaning the teeth or dentures

Abstract

A TOOTHBRUSH (10), THAT HAS A HANDLE AND A SERIES OF PIG SETS (26) FIXED TO THE HEAD (14), IS EXPOSED. ONE OF THE SETS IS FIXED TO THE HEAD (14) IN A PLACE THAT MAKES NO OTHER SET OF PIGS BE FIXED TO THE HEAD IN A DIFFERENT POSITION REGARDING THE HANDLE (12), EXCEPT THE PLACE IN WHICH THERE IS ONLY ONE SET OF PIGS FIXED TO THE HEAD (14). THE APPOINTMENT SET IS SITUATED AT AN ANGLE OF APPROXIMATELY 81 DEGREES OR LESS REGARDING AN IMAGINARY LINE TANGENT TO A PLANE COINCIDENT WITH A HEAD SURFACE THROUGH THE SUCH SET IS SET TO THE HEAD (14). THE APPOINTMENT SET IS PLACED INCLINED REGARDING THE HANDLE (12) TOWARDS AN ADDRESS THROUGH WHICH THE HEAD IS EXTENDED (14) FROM THE HANDLE (12).

Description

Toothbrush.

The invention relates generally to the field of oral care and in particular to toothbrushes. Plus specifically, the invention relates to a toothbrush with a three-dimensional bristle profile to provide a better cleaning of the interproximal and gingival marginal regions of the teeth.

Brushing teeth and cleaning with Flossing are basic measures to achieve good oral hygiene. Unfortunately, flossing has not found a wide acceptance among the general public, even when recognize for the same that flossing is something that It should be done as part of good oral hygiene. For other part, even people who floss often don't carries out an adequate use of it in the areas of Hard access from the mouth. Unfortunately while the most commercially available toothbrushes properly clean the outer mouth of the teeth, not they manage to provide a better cleaning of the plate and waste of the gingival border, of the interproximal areas, of the lingual surfaces and other areas of the mouth difficult access.

One reason why such toothbrushes do not properly clean the posterior extreme molars (for example wisdom teeth or second molars) is that one or more beams secured on the toothbrush head in the more distal situation with respect to the handle does not form an angle with the direction in which the head extends from the handle. Such way, those beams cannot extend far enough from the Toothbrush head end to clean enough molars in the back of the mouth.

US 4,672,706 forms the preamble of claim 1. US 5,628,082, US 5,446,940 and the FR 2,624,360, describe toothbrushes that include a more distal beam that forms an angle in the opposite direction to the handle. However, such articles also do not have a beam that form angle in the opposite direction to improve cleanliness interdental.

Also, in the brushes that have beams of bristles that form an angle towards the handle and other beams that form angle separating from the handle, all beams have essentially the same length and the same cross section. See for example, document DE 4,412,301. Accordingly while these angled beams can clean part of the teeth so satisfactory, they do not clean other parts of the teeth because of the homogeneous length, separation and cross section of the beams.

Moreover, the toothbrushes of the prior art show bristle beams with sections transversal of three different types maximum. But nevertheless, there are more than three parts of the teeth that need to be cleaned with the brush (for example, the outer mouth, the edge gingival, interproximal areas, lingual surfaces and the posterior extreme molars). Consequently, the brushes of prior art do not have beams with sufficient variety of cross sections specifically designed to clean All areas of the teeth.

The present invention is oriented to the overcoming one or more of the above problems, and provides a toothbrush according to claim 1. It is define preferred embodiments in the claims Dependents

At an angle the additional beam described in the previous paragraph, said beam is able to extend from the end of the toothbrush head and thereby clean the molars in the back of the mouth more adequately.

This memory also describes a brush teeth that includes a handle, a head that extends from the handle and a plurality of bristle bundles secured on the head. One of the beams is secured in the head in such a location that no other beam is secured in the head in one more location distal to the handle that the location in which said beam is insured in the head. Said beam is tilted in the direction opposite the handle, in the direction in which the head extends from the handle. Said beam forms an angle less than or equal to 81 ° approximately with respect to an imaginary line tangent to or coplanar with the surface of the head through which said beam is secured in the head.

Providing inclined beams that vary in length, cross section or in their combinations, allows said beams that form an angle clean more than a part of the teeth. For example, one type of angled beam will clean the face buccal teeth while another type of angle beam It will clean the interproximal areas of the teeth.

Providing beams with at least five types of cross section, these beams can clean all areas of the teeth (for example the outer buccal face, the gingival edge, interproximal areas, lingual and molar surfaces back ends) correctly.

These and other aspects, objects, characteristics and advantages of the present invention will be understood and appreciated with greater clarity from the study of the following description detailed of the preferred embodiments and of the attached claims, with reference to the drawings that are accompany.

Figure 1 is a perspective view of a toothbrush according to the present invention;

Figure 2 is a top view of the toothbrush of figure 1;

Figure 3 is a side view of the brush of teeth of figure 1;

Figures 4 and 5 are partial side views of the head and respective parts of the brush beams of teeth of figure 1;

Figure 6 is a partial sectional view of the toothbrush head taken by the lines 6-6 of Figure 3; Y

Figure 7 is a perspective view of the head and part of the toothbrush handle of the figure one.

Starting with figures 1-3, the toothbrush 10 includes a handle part 12 and a part head 14 extending from the handle in the D direction. Preferably, the total length of the toothbrush 10 is approximately 19.6 cm (about 7.7 inches), while the head width 14 at its widest part is preferably about 1.3 cm (about 0.5 inches). A main part 16 of handle 12 and head 14 is made of a unit piece of poly (propylene). The remaining parts of handle 12, including the holding part 18 for the thumb, the option of 24 mark (preferably around 2.1 cm - approximately 0.83 inches- long) and part 20 for finger grip they are preferably made of a thermoplastic elastomer, preferably Kraton rubber (a styrene block copolymer and butadiene or isoprene with saturated or unsaturated fat loading, with a Shore hardness between approximately 5 and approximately 70). The holding part 18 of the thumb and a portion of the part 20 for finger grip have a series of seventeen nerves 22 that improve the grip capacity of the handle. The nerves 22 have preferably a width of 0.13 cm (0.05 inches) wide.

With reference to figures 3-7 a plurality of beams 26 of secured bristles can be seen in them on head 14 of the toothbrush. Each beam is formed by a large number of bristles and all the bristles are preferably of rounded ends. There are five different types of beams secured in the head, with each type of beam having a section transverse that differs from that of the other types of beams in the area and in the form.

A first type of beam, type 28, is made with bristles formed with poly (butylene terephthalate) (PBT) with an abrasive such as kaolin particles mixed with the entire PBT. These bristles have a diameter between about 0.013 and 0.023 cm (about 0.005 to 0.009 inches), and preferably a diameter of 0.018 cm (0.007 inches). The length of these bristles, measured from the surface 30 of head 14, is approximately 1.18 cm (0.440 inches). The cross-sectional area of beam 28 is approximately 0.2406 cm 2 (approximately 0.0373 square inches), providing a volume of the beam measured from the surface of the head of approximately 0.2687 cm 3 (approximately 0.0164 cubic inches) (preferably this volume will be between approximately 0.246 and 0.295 cm 3 (approximately between 0.015 and 0.018 cubic inches)). There is only one beam of
type 28 secured in the head 14 and is located more distally with respect to the handle 14 than any other beam.

A second type of beam, type 32, is made of Indicators? nylon bristles that are formed of nylon 6.12 and colored blue on its outer surface. It turns out well known in the art that the blue color of these bristles goes slowly disappearing over time by the use of the brush, indicating the degree of wear of the toothbrush. These sows they have a diameter of approximately 0.013 to 0.023 cm (approximately 0.005 to 0.009 inches), and preferably a 0.018 cm (0.007 inch) diameter. The length of these bristles, measured from the surface 30 of the head 14 is of, approximately 0.889 cm (approximately 0.350 inches). The area of the cross section of each beam 32 is approximately 0.0290 cm2 (approximately 0.0045 square inches). How I know shown in figure 6, type 32 beams have section round cross. There are between 8 and 12 beams of type 32 secured in the head 14.

A third type of beam, type 34, is made of bristles formed of PBT with an abrasive of the type such as particles of kaolin mixed throughout the PBT. These bristles have a diameter between approximately 0.013 and 0.023 cm (approximately 0.005 a 0.009 inches), and preferably a diameter of 0.018 cm (0.007 inches). The length of these bristles, measured from the surface 30 of head 14, is approximately 1.18 cm (approximately 0.440 inches). The cross sectional area of each beam 34 is approximately 0.0174 cm2 (approximately 0.0027 square inches). There are between eight and twelve Type 34 beams secured on head 14. As shown in the Figure 6, type 34 beams are rectangular in shape with rounded ends

A fourth type of beam, type 36, is made of bristles formed of PBT with an abrasive such as particles of kaolin mixed throughout the PBT. These bristles have a diameter of between approximately 0.013 and 0.023 cm (approximately 0.005 a 0.009 inches), and preferably a diameter of 0.018 cm (0.007 inches). The length of these bristles, measured from the surface 30 of head 14 is approximately 1.12 cm (approximately 0.440 inches). The cross-sectional area of each beam 36 is of about 0.0258 cm2 (about 0.0040 square inches). There are between four and six beams of type 36 secured in head 14. As shown in figure 6, the Type 36 beams are rectangular in shape with rounded ends and are wider in the transverse direction of the head than type 34 beams.

A fifth and last type of beam, type 38, is made of bristles formed of PBT with an abrasive such as particles of kaolin mixed throughout the PBT. These bristles have a diameter between approximately 0.013 and 0.023 cm (approximately 0.005 a 0.009 inches), and preferably a diameter of 0.015 cm (0.006 inches). The length of these bristles, measured from the surface 30 of head 14 is approximately 0.889 cm (approximately 0.350 inches). The cross sectional area of each beam 38 is approximately 0.0542 cm2 (approximately 0.0084 square inches). There are between four and six Type 38 beams secured in head 14. As shown in the Figure 6, type 36 beams are rectangular in shape with rounded ends and are wider than type beams 36.

Taking into account the areas of the section transverse of the different beams described above, the beam Type 28 has a cross section that is more than four times greater than that of any other beam secured in the head 14. Although specific materials have been described made the bristles of each beam, other materials can be used. From this way, any of the bristles attached to the head 14 could be made of, for example PBT with or without an abrasive such as the kaolin, nylon 6.12 with or without abrasive or nylon material Indicators? With or without abrasive.

In addition, the bristles within a beam and between Beams can have lengths, diameters, section shapes transversal, cross-sectional areas and colors that vary, and They can be made of different materials.

As seen in the best way in figures 2, 4, 5 and 7, all beams of head 14 form an angle in the address D or in the opposite direction to address D of, preferably, less than about 81 degrees, more preferably of between about 69 degrees and about 81 degrees and, more preferably, of about 75 degrees, relative to an imaginary straight line 40 tangent to surface 30 of head 14. If surface 30 were flat instead of curved, then line 40 would be coplanar with the surface 30. Beams 42 of two outer rows form a angle in the direction D that separates from the handle 12. Beams 44 of an inner row forms an angle towards the handle 12, in the direction opposite direction D, with the exception of the large beam 28, which it is inclined in the direction D which is separated from the handle 12.

The toothbrush 10 can be manufactured by the following procedure, which is generally understood by specialists in the art. Each of the bristle beams It is formed by gathering the desired amount of material bristles, selected length and diameter. The beams are inserted to continuation in openings in part of a mold of a machine injection molding. Then the end of the beam that is or that penetrates into the cavity of the mold melts to bind the bristles in a dough or molten ball at that end of the beam. The part of the mold that holds the beams is then joined with another part of the mold to jointly define the cavity used to form the main part 16 of the toothbrush. The melts of the beams are then placed in the cavity.

Poly (propylene) is then injected into the cavity to form part 16 of the toothbrush 10. Then it cool the poly (propylene) and take the toothbrush partially finished to a second molding station by injection. The cooled and hardened poly (propylene) ensures the melts of the beams on the head 14 of the brush teeth. In the second molding station, the brush partially finish is placed in a second mold that has cavities for form the holding part 18 for the thumb, the mark 24 and the Part 20 for finger grip. It is then injected into the mold a thermoplastic elastomer, after which it is cooled the elastomer and the finished toothbrush 10 is removed from the mold. Subsequently the toothbrush is packaged.

Claims (7)

1. A toothbrush (10) having a head (14) with an anterior free end and a posterior section followed by a handle (12), comprising bundles of bristles (32, 34, 36, 38) having different lengths arranged in longitudinal rows (42, 44), one inside and two outside, in the rear section of the head (14), with bundles of bristles having a first and longer length or a second and shorter length, with bundles of bristles (32, 34, 36, 38) of the first and second lengths in each longitudinal row (42, 44) and having adjacent bundles of bristles (32, 34, 36, 38) of a longitudinal row (42, 44 ), alternatively, the first and second lengths, characterized in that all bundles of bristles (32, 34) in the outer longitudinal rows (42) are inclined in a first direction (D) towards the free end of the head (14) and all beams of bristles (26, 38) of the inner longitudinal row (44) are inclined in a second direction n opposite the first direction (D) and form an acute angle with the surface (30) of the head (14), and by an additional single bristle beam (28) that is secured at the free front end of the head (14 ) and is substantially twisted only in the first direction (D) and has the first and greatest length, where the angle of all the beams on the head (14) are approximately 81 degrees or less in relation to an imaginary line that is tangent ao coplanar with a surface (30) of the head (14) through which the beams are secured to the head, and where the additional single beam has a cross-section of the beam of approximately 0.2406 cm2 ( 0.0373 square inches); the outer longitudinal rows consist of between 8 and 12 beams with a round cross-section of the beam of 0.0290 cm2 (0.0045 square inches) and between 8 and 12 beams with a rectangular cross-section of the beam of 0.0174 cm2 (0.0027 square inches); and the inner longitudinal row consists of between 4 and 6 beams with a rectangular cross-section of the beam of 0.0258 cm 2 (0.0040 square inches) and between 4 and 6 beams with a rectangular cross-section of the beam of 0.0542cm2 (0.0084 square inches).
2. The toothbrush according to claim 1, characterized in that at least some bundles of bristles (28, 32, 34, 36, 38) have a different color.
3. The toothbrush according to any of the preceding claims, characterized in that at least some bundles of bristles (28, 32, 34, 36, 38) are of different material.
4. The toothbrush according to any of the preceding claims, characterized in that the first and longer length and the second and shorter length differ from each other by approximately 2,286 mm (0.090 inches).
5. The toothbrush according to any of the preceding claims, characterized in that the first and greatest length is approximately 11.18 mm (0.440 inches) or the second and shorter length is 8.89 mm (0.350 inches).
6. The toothbrush according to any of the preceding claims, characterized in that each bundle of bristles (28, 32, 34, 36, 38) consists of a large number of bristles, said bristles having rounded ends.
7. The toothbrush according to any of the preceding claims, characterized in that the bristles secured in the head (14) are made of PBT, nylon 6.12 or nylon Indicators (trade mark) material, with or without abrasive, such as kaolin.
ES98956668T 1997-11-12 1998-11-06 Toothbrush. Expired - Lifetime ES2192797T5 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US96829397A true 1997-11-12 1997-11-12
US968293 1997-11-12
US177991 1998-10-23
US09/177,991 US6308367B1 (en) 1997-11-12 1998-10-23 Toothbrush

Publications (2)

Publication Number Publication Date
ES2192797T3 ES2192797T3 (en) 2003-10-16
ES2192797T5 true ES2192797T5 (en) 2009-03-01

Family

ID=26873851

Family Applications (1)

Application Number Title Priority Date Filing Date
ES98956668T Expired - Lifetime ES2192797T5 (en) 1997-11-12 1998-11-06 Toothbrush.

Country Status (24)

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EP (2) EP1240847B1 (en)
JP (4) JP4069188B2 (en)
CN (1) CN1120682C (en)
AR (1) AR048240A2 (en)
AT (1) AT233060T (en)
AU (1) AU742959B2 (en)
BR (1) BR9806247A (en)
CA (1) CA2271852C (en)
CZ (1) CZ172999A3 (en)
DE (4) DE29823590U1 (en)
ES (1) ES2192797T5 (en)
GB (1) GB2333697A (en)
HU (1) HU0004254A3 (en)
ID (1) ID21723A (en)
IL (1) IL129913A (en)
NO (1) NO992417L (en)
NZ (1) NZ335854A (en)
PL (1) PL191797B1 (en)
RO (1) RO120310B1 (en)
RU (1) RU2228129C2 (en)
SK (1) SK63899A3 (en)
TR (1) TR199901208T1 (en)
TW (1) TW538701U (en)
WO (1) WO1999023910A1 (en)

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CN1241123A (en) 2000-01-12
CN1120682C (en) 2003-09-10
DE19881632T1 (en) 1999-10-28
DE69811634T3 (en) 2009-05-14
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WO1999023910A1 (en) 1999-05-20
AU742959B2 (en) 2002-01-17
IL129913A (en) 2002-05-23
TW538701U (en) 2003-06-21
EP1240847A2 (en) 2002-09-18
DE69811634D1 (en) 2003-04-03
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CZ172999A3 (en) 1999-12-15
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