IP Library › Granted Patent US 8,613,123
Granted Patent B2
US 8,613,123 · App. 13/765,151 · Granted Dec 24, 2013

Toothbrush and process for producing the same

Inventors: Philipp Pfenniger (Triengen, CH); Franz Fischer (Triengen, CH)
Assignee: Trisa Holding AG
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Quick Facts
Patent No.
US 8,613,123
App. No.
13/765,151
Granted
Dec 24, 2013
Kind
B2
Abstract

The invention relates to a toothbrush that is produced by AFT and has a head part and at least one carrier element connected thereto. A front surface of the head part is formed by the top surfaces of the at least one carrier element and has a non-planar three-dimensional configuration, or is capable of assuming such a configuration during intended use. The invention also relates to a process for producing such a toothbrush.

Claims (74)

1. A toothbrush comprising:

a handle part;

a head part connected to the handle part;

at least one carrier element connected to the head part; and

clusters of bristle filaments accommodated in the at least one carrier element,

the clusters of bristle filaments having a rear end melted to form a bristle melt for fastening to the at least one carrier element;

the at least one carrier element accommodating the clusters of bristle filaments being connected to the head part such that a rear surface of the at least one carrier element is in part at a distance from the head part thereby forming a spacing between the at least one carrier element and a front face of the head part; and

the at least one carrier element is at least in part resiliently deformable in a direction into the spacing during use.

2. The toothbrush according to claim 1 , wherein

the at least one carrier element is only connected to the head part in a subregion, and

the spacing is in the form of a cavity being accessible though lateral cutouts.

3. The toothbrush according to claim 1 , wherein

the at least one carrier element is only connected to the head part in subregions, and

the spacing is in the form of a cavity being accessible though lateral cutouts.

4. The toothbrush according to claim 1 , wherein

the at least one carrier element is connected to the head part at a free end of the head part, and

the spacing is in the form of a cavity being accessible through lateral cutouts.

5. The toothbrush according to claim 1 , wherein the at least one carrier element is made of a hard plastic material and a soft plastic material.

6. The toothbrush according to claim 5 , wherein the at least one carrier element has a contact surface defined by the hard plastic material, the contact surface providing connection of the at least one carrier element with the head part.

7. The toothbrush according to claim 5 , wherein the hard plastic material is polypropylene and the soft plastic material is a thermoplastic elastomer.

8. The toothbrush according to claim 5 , wherein the soft plastic material is coordinated with the hard plastic material, with the result that a non-releasable connection is produced.

9. The toothbrush according to claim 1 , wherein the at least one carrier element is spaced apart from the head part in part by more than 0.5 mm.

10. The toothbrush according to claim 1 , wherein the at least one carrier element includes flexible cleaning elements made of a soft plastic material.

11. The toothbrush according to claim 1 , wherein the at least one carrier element includes welding surfaces that are in different planes.

12. The toothbrush according to claim 1 , wherein the bristle melt follows a non-planar shape of the at least one carrier element.

13. The toothbrush according to claim 1 , wherein the melted rear ends of the clusters of bristle filaments are arranged in different planes.

14. A toothbrush comprising:

a handle part;

a head part connected to the handle part;

at least one carrier element connected to the head part only in a subregion; and

clusters of bristle filaments having a rear end melted to form a bristle melt for fastening to the at least one carrier element,

the at least one carrier element accommodating the clusters of bristle filaments being connected to the head part such that a rear surface of the at least one carrier element is in part at a distance from the head part thereby forming a spacing between the at least one carrier element and a front face of the head part, and

the at least one carrier element is at least in part resiliently deformable in a direction into the spacing during use.

15. The toothbrush according to claim 14 , wherein

the subregion includes a plurality of subregions, and

the spacing is in the form of a cavity being accessible through lateral cutouts.

16. A toothbrush comprising:

a handle part;

a head part connected to the handle part;

at least one carrier element connected to the head part; and

clusters of bristle filaments having a rear end melted to form a bristle melt for fastening to the at least one carrier element,

wherein the at least one carrier element is provided with a plurality of discrete anchoring regions of the bristle melt that are at different heights.

17. The toothbrush according to claim 16 , wherein

the at least one carrier element is connected to the head part at a free end of the head part,

the at least one carrier element accommodating the clusters of bristle filaments is connected to the head part such that a rear surface of the at least one carrier element is in part at a distance from the head part thereby forming a spacing between the at least one carrier element and a front face of the head part, and

the spacing is in the form of a cavity being accessible through lateral cutouts.

18. The toothbrush according to claim 16 , wherein the melted rear ends of the clusters of bristle filaments are arranged in different planes.

19. The toothbrush according to claim 16 , wherein the at least one carrier element is at least in part resiliently deformable with respect to the head part during use.

20. The toothbrush according to claim 16 , wherein the at least one carrier element is spaced apart from the head part in part by more than 0.5 mm.

21. The toothbrush according to claim 16 , wherein the bristle melt follows a non-planar shape of the at least one carrier element.

22. The toothbrush according to claim 16 , wherein the at least one carrier element includes welding surfaces that are in different planes.

23. A toothbrush comprising:

a handle part;

a head part connected to the handle part;

at least one carrier element connected to the head part; and

clusters of bristle filaments having a rear end melted to form a bristle melt for fastening to the at least one carrier element;

wherein the at least one carrier element is provided with an inflected profile and a flexible zone.

24. The toothbrush according to claim 23 , wherein the at least one carrier element is only connected to the head part in a subregion.

25. The toothbrush according to claim 23 , wherein the at least one carrier element is only connected to the head part in subregions.

26. The toothbrush according to claim 23 , wherein the at least one carrier element is connected to the head part at a free end of the head part.

27. The toothbrush according to claim 23 , wherein the melted rear ends of the clusters of bristle filaments are arranged in different planes.

28. The toothbrush according to claim 23 , wherein the at least one carrier element is at least in part resiliently deformable with respect to the head part during use.

29. The toothbrush according to claim 23 , wherein the at least one carrier element is spaced apart from the head part in part by more than 0.5 mm.

30. The toothbrush according to claim 23 , wherein the bristle melt follows a non-planar shape of the at least one carrier element.

31. The toothbrush according to claim 23 , wherein the at least one carrier element includes welding surfaces that are in different planes.

32. A toothbrush comprising:

a handle part;

a head part connected to the handle part;

at least one carrier element connected to the head part; and

clusters of bristle filaments having a rear end melted to form a bristle melt for fastening to the at least one carrier element, wherein:

the at least one carrier element is provided with an inflected profile and a flexible zone, and

the inflected profile is provided with an anchoring region of the bristle melt.

33. The toothbrush according to claim 32 , wherein the melted rear ends of the clusters of bristle filaments are arranged in different planes.

34. The toothbrush according to claim 32 , wherein the anchoring region includes a plurality of discrete anchoring regions.

Priority Claims (1)
DE 102 59 723 · Dec 19, 2002 · national
Continuity (7)
Continuation 13067844 · Jun 29, 2011
Continuation 12805064 · Jul 9, 2010
Continuation 12379992 · Mar 5, 2009
Continuation 11645664 · Dec 27, 2006
Continuation 11291911 · Dec 2, 2005
Division 10388744 · Mar 17, 2003
Related Publication 20130180069A1 · Jul 18, 2013