Oral care implement

• US 10,182,644 B2
• Filed: 12/23/2014
• Issued: 01/22/2019
• Est. Priority Date: 12/23/2014
• Status: Active Grant

• Current Assignee: Colgate-Palmolive Company
• Original Assignee: Colgate-Palmolive Company
• Inventors: Jimenez, Eduardo, Waguespack, Kenneth, Moskovich, Robert, Kirchhofer, Roger, Bieri, Kurt, Storz, Joachim, Wechsler, Andreas
• Primary Examiner(s): JENNINGS, MICHAEL DEANGILO
• Application Number:
  US15/539,357
• Publication Number:
  US 20170347786A1
• Time in Patent Office: 1,491 Days
• Field of Search: 151671, 15191
• CPC Class Codes: A46B 2200/1066 Toothbrush for cleaning the teeth or dentures A61C17/16 takes precedence; bristles arrangements for toothbrushes A46B9/04
• CPC Class Codes: A46B 9/025 the bristles or the tufts being arranged in an angled position relative to each other
• CPC Class Codes: A46B 9/04 Arranged like in or for toothbrushes
• CPC Class Codes: A46B 9/06 Arrangement of mixed bristles or tufts of bristles, e.g. wire, fibre, rubber
• CPC Class Codes: A46D 3/045 for fixing bristles by fusing or gluing to a body

Abstract

An oral care implement that includes a handle (120) and a head (100) with a front surface. A plurality of tooth cleaning elements extend from the front surface. In one embodiment the plurality of tooth cleaning elements include a conical tuft (130) that is formed by a wall of bristles. The tooth cleaning elements may also include first and/or second sets of peripheral tooth cleaning elements located adjacent to opposing lateral edges of the head. The peripheral tooth cleaning elements may include elastomeric sleeve portions (144, 154) and bristle tuft portions (145, 155). The elastomeric sleeve portions may be formed as a part of an integrally formed elastomeric component (170).

Claims

1. An oral care implement comprising:

a handle;

a head coupled to the handle, the head comprising a front surface, a longitudinal axis extending from a proximal end of the head to a distal end of the head, and a head plate, the head plate comprising a lower surface, an upper surface that forms the front surface of the head, and a plurality of through holes extending from the lower surface to the upper surface;

a plurality of tooth cleaning elements extending from the front surface of the head;

the plurality of tooth cleaning elements comprising a conical tuft comprising a bristle wall having an inner surface defining a cavity along a cavity axis, the cavity having a transverse cross-sectional area that increases with distance from the front surface of the head;

the plurality of tooth cleaning element further comprising;

a first set of peripheral tooth cleaning elements located adjacent to a first lateral edge of the head;

a second set of peripheral tooth cleaning elements located adjacent to a second lateral edge of the head; and

each peripheral tooth cleaning element of the first and second sets comprising an elastomeric sleeve portion and a bristle tuft portion extending through a sleeve cavity of the elastomeric sleeve portion along a sleeve axis, the bristle tuft portion protruding from a distal end of the elastomeric sleeve portion;

further comprising an integrally formed mass of elastomeric material, wherein the integrally formed mass of elastomeric material comprises the elastomeric sleeve portions of the first and second sets;

wherein each of the plurality of tooth cleaning elements comprise a cleaning portion protruding from the upper surface of the head plate and an anchor portion located adjacent the lower surface of the head plate; and

wherein the integrally formed mass of elastomeric material comprises at least one elastomeric base strip comprising a first end connected to one of the elastomeric sleeve portions of the first set of the peripheral tooth cleaning elements and a second end connected to one of the elastomeric sleeve portions of the second set of the peripheral tooth cleaning elements.

2. The oral care implement according to claim 1 wherein for each of the peripheral tooth cleaning elements of the first and second sets, the sleeve cavity of the elastomeric sleeve portion has a transverse cross-section comprising a major axis and a minor axis, the major axis being longer than the minor axis.

3. The oral care implement according to claim 1 wherein each of the first and second sets of the peripheral tooth cleaning elements comprise a central peripheral tooth cleaning element having a longitudinal length that is greater than a maximum diameter of the transverse cross-sectional area of the cavity of the conical tuft.

4. The oral care implement according to claim 3 wherein the conical tuft is located on the longitudinal axis between the central peripheral tooth cleaning elements of the first and second sets.

5. The oral care implement according to claim 3 wherein each of the first and second sets of the peripheral tooth cleaning elements comprises a proximal peripheral tooth cleaning element and a distal peripheral tooth cleaning element;

and wherein for each of the first and second sets, the central peripheral tooth cleaning element is located between the distal and proximal peripheral tooth cleaning elements.

6. The oral care implement according to claim 1 wherein the plurality of tooth cleaning elements further comprises first and second elastomeric tooth cleaning elements located between the first and second sets of peripheral tooth cleaning elements and on opposite sides of the conical tuft;

and wherein the integrally formed mass of elastomeric material comprises the first and second elastomeric tooth cleaning elements.

7. The oral care implement according to claim 1 wherein the lower surface of the head plate comprises at least one channel, the at least one elastomeric base strip located within the at least one channel of the lower surface of the head plate.

8. The oral care implement according to claim 7 wherein the integrally formed mass of elastomeric material further comprises elastomeric sleeve strips that extend between and connect the elastomeric sleeve portions of adjacent ones of the peripheral tooth cleaning elements of the first and second sets;

wherein the upper surface of the head plate comprises channels; and

wherein the elastomeric sleeve strips are located within the channels of the upper surface of the head plate.

9. The oral care implement according to claim 1 wherein the anchor portions of the plurality of tooth cleaning elements comprise a melt matte.

10. An oral care implement comprising:

a handle;

a head coupled to the handle, the head comprising a front surface and a head plate, the head plate comprising a lower surface, an upper surface that forms at least a portion of the front surface of the head, and a plurality of through holes extending from the lower surface to the upper surface;

a plurality of tooth cleaning elements extending from the upper surface of the head plate, the plurality of tooth cleaning elements comprising a cleaning portion protruding from the upper surface of the head plate and an anchor portion located adjacent the lower surface of the head plate;

the plurality of tooth cleaning elements comprising a first set of peripheral tooth cleaning elements located adjacent to a first lateral edge of the head, each of the peripheral tooth cleaning elements of the first set comprising an elastomeric sleeve portion protruding from the upper surface of the head plate, the cleaning portion protruding from the elastomeric sleeve portion.

11. The oral care implement according to claim 10 further comprising:

one or more first channels in the front surface of the head that extend between adjacent ones of the peripheral tooth cleaning elements of the first set;

an integrally formed elastomeric component comprising;

the elastomeric sleeve portions of the first set of the peripheral tooth cleaning elements; and

one or more first elastomeric sleeve strips that extend between and connect the elastomeric sleeve portions of adjacent ones of the peripheral tooth cleaning elements of the first set, the one or more first elastomeric sleeve strips located within the one or more first channels;

the plurality of tooth cleaning elements further comprising a second set of the peripheral tooth cleaning elements located adjacent to a second lateral edge of the head;

one or more second channels in the front surface of the head that extend between adjacent ones of the peripheral tooth cleaning elements of the second set; and

the integrally formed elastomeric component further comprising one or more second elastomeric sleeve strips that extend between and connect the elastomeric sleeve portions of adjacent ones of the peripheral tooth cleaning elements of the second set, the one or more second elastomeric sleeve strips located within the one or more second channels.

12. The oral care implement according to claim 11 wherein the integrally formed mass of elastomeric material further comprises at least one elastomeric base strip comprising a first end connected to one of the elastomeric sleeve portions of the first set of the peripheral tooth cleaning elements and a second end connected to one of the elastomeric sleeve portions of the second set of the peripheral tooth cleaning elements.

13. The oral care implement according to claim 12 wherein the plurality of tooth cleaning elements further comprises an elastomeric tooth cleaning element;

and wherein the integrally formed mass of elastomeric material further comprises the elastomeric tooth cleaning element extending from the at least one elastomeric base strip.

14. The oral care implement according to claim 10 wherein the first set of the peripheral tooth cleaning elements comprises a central peripheral tooth cleaning element, a proximal peripheral tooth cleaning element, and a distal peripheral tooth cleaning element;

and wherein the central peripheral tooth cleaning element is located between the distal and proximal peripheral tooth cleaning elements.

15. The oral care implement according to claim 14 wherein the central peripheral tooth cleaning element has a first longitudinal length, the proximal peripheral tooth cleaning element has a second longitudinal length, and the distal peripheral tooth cleaning element has a third longitudinal length, the first longitudinal length being greater than the second and third longitudinal lengths.

16. The oral care implement according to claim 15 wherein the central peripheral tooth cleaning element has a first transverse width that is less than the first longitudinal length, the proximal peripheral tooth cleaning element has a second transverse width that is less than the second longitudinal length, and the distal peripheral tooth cleaning element has a third transverse width that is less than the third longitudinal length.

17. The oral care implement of claim 10 wherein the plurality of tooth cleaning elements comprises a central tuft comprising a plurality of bristles, the anchor portion of a first one of the bristles of the central tuft connected to the anchor portion of a first one of the first set of peripheral tooth cleaning elements via a melt matte.

18. An oral care implement comprising:

a handle;

a head coupled to the handle, the head comprising a front surface and a longitudinal axis extending from a proximal end of the head to a distal end of the head, and a head plate, the head plate comprising a lower surface, an upper surface that forms the front surface of the head, and a plurality of through holes extending from the lower surface to the upper surface;

a plurality of tooth cleaning elements extending from the front surface of the head;

the plurality of tooth cleaning elements comprising a conical tuft comprising a bristle wall having an inner surface defining a cavity along a cavity axis, the cavity having a transverse cross-sectional area that increases with distance from the front surface of the head;

the plurality of tooth cleaning element further comprising;

at least one peripheral tooth cleaning element located adjacent to a first lateral edge of the head;

at least one peripheral tooth cleaning element located adjacent to a second lateral edge of the head; and

each peripheral tooth cleaning element comprising an elastomeric sleeve portion and a bristle tuft portion extending through a sleeve cavity of the elastomeric sleeve portion along a sleeve axis, the bristle tuft portion protruding from a distal end of the elastomeric sleeve portion;

wherein each of the plurality of tooth cleaning elements comprise a cleaning portion protruding from the upper surface of the head plate and an anchor portion located adjacent the lower surface of the head plate; and

further comprising at least one elastomeric base strip comprising a first end and a second end, the first end connected to one of the elastomeric sleeve portions of the first set of the peripheral tooth cleaning elements and the second end connected to one of the elastomeric sleeve portions of the second set of the peripheral tooth cleaning elements.

19. The oral care implement of claim 18 wherein a transverse plane that is perpendicular to the longitudinal axis of the head and that intersects the front surface of the head intersects the peripheral tooth cleaning element adjacent to the first lateral edge of the head and the peripheral tooth cleaning element adjacent to the second lateral edge of the head.