Brush arrangement and toothbrush with brush arrangement

A brush arrangement for use in a toothbrush having a drive mechanism for causing movement of the brush arrangement relative to a motion axis of the brush arrangement for cleaning teeth in an oral cavity of a user, said brush arrangement comprising a bristle carrier and a plurality of upstanding bristle tufts, each bristle tuft having a proximal end secured to the bristle carrier and a distal free end remote therefrom, wherein the bristle tufts are disposed in a spaced relationship to the motion axis and inclined in the direction of the motion axis so that their distal ends are arranged within an imaginary boundary circumferentially enclosing the tufts adjacent the free ends, said boundary having in a projection onto a plane transverse the motion axis a major dimension less than a lateral distance between outside edges of two adjacent teeth, whereby the plurality of tuft distal ends are insertable into a region between said lateral distance between adjacent teeth during a cleaning operation, and

• wherein the tuft distal ends form a working face having an area bounded by an imaginary distal envelope enclosing the distal ends,
• wherein an anchor area along the bristle carrier is bounded by a base envelope enclosing the bristle tufts near their proximal ends, and
• wherein the working face area is less than the anchor area.

A brush arrangement for use in a toothbrush having a drive mechanism for causing movement of the brush arrangement relative to a motion axis of the brush arrangement for cleaning teeth in an oral cavity of a user, said brush arrangement comprising a bristle carrier and a plurality of upstanding bristle tufts, each bristle tuft having a proximal end secured to the bristle carrier and a distal free end remote therefrom, wherein the bristle tufts are disposed in a spaced relationship to the motion axis and inclined in the direction of the motion axis so that their distal ends are arranged within an imaginary boundary circumferentially enclosing the tufts adjacent the free ends, said boundary having in a projection onto a plane transverse the motion axis a major dimension less than a lateral distance between outside edges of two adjacent teeth, whereby the plurality of tuft distal ends are insertable into a region between said lateral distance between adjacent teeth during a cleaning operation, and

• further including a middle tuft of bristles arranged between the inclined bristle tufts, the middle tuft being generally aligned with the motion axis.

A brush arrangement for use in a toothbrush having a drive mechanism for causing movement of the brush arrangement relative to a motion axis of the brush arrangement for cleaning teeth in an oral cavity of a user, said brush arrangement comprising a bristle carrier and a plurality of upstanding bristle tufts, each bristle tuft having a proximal end secured to the bristle carrier and a distal free end remote therefrom, wherein the bristle tufts are disposed in a spaced relationship to the motion axis and inclined in the direction of the motion axis so that their distal ends are arranged within an imaginary boundary circumferentially enclosing the tufts adjacent the free ends, said boundary having in a projection onto a plane transverse the motion axis a major dimension less than a lateral distance between outside edges of two adjacent teeth, whereby the plurality of tuft distal ends are insertable into a region between said lateral distance between adjacent teeth during a cleaning operation, and

• wherein the bristles radially more adjacent the motion axis are of greater hardness than the bristles which are radially more remote from the motion axis.

A brush arrangement for use in a toothbrush having a drive mechanism for causing movement of the brush arrangement relative to a motion axis of the brush arrangement for cleaning teeth in an oral cavity of a user, said brush arrangement comprising a bristle carrier and a plurality of upstanding bristle tufts, each bristle tuft having a proximal end secured to the bristle carrier and a distal free end remote therefrom, wherein the bristle tufts are disposed in a spaced relationship to the motion axis and inclined in the direction of the motion axis so that their distal ends are arranged within an imaginary boundary circumferentially enclosing the tufts adjacent the free ends, said boundary having in a projection onto a plane transverse the motion axis a major dimension less than a lateral distance between outside edges of two adjacent teeth, whereby the plurality of tuft distal ends are insertable into a region between said lateral distance between adjacent teeth during a cleaning operation, and

• wherein the tuft distal ends form a substantially planar working face.

A brush arrangement for use in a toothbrush having a drive mechanism for causing movement of the brush arrangement relative to a motion axis of the brush arrangement for cleaning teeth in an oral cavity of a user, said brush arrangement comprising a bristle carrier and a plurality of upstanding bristle tufts, each bristle tuft having a proximal end secured to the bristle carrier and a distal free end remote therefrom, wherein the bristle tufts are disposed in a spaced relationship to the motion axis and inclined in the direction of the motion axis so that their distal ends are arranged within an imaginary boundary circumferentially enclosing the tufts adjacent the free ends, said boundary having in a projection onto a plane transverse the motion axis a major dimension less than a lateral distance between outside edges of two adjacent teeth, whereby the plurality of tuft distal ends are insertable into a region between said lateral distance between adjacent teeth during a cleaning operation, and

• wherein the tuft distal ends collectively form a substantially planar working face.

An interproximal brush arrangement for use in a toothbrush having a drive mechanism for causing movement of the brush arrangement relative to a motion axis of the brush arrangement for cleaning teeth in an oral cavity of a user, said brush arrangement comprising

• a substantially planar bristle carrier, and
• a plurality of upstanding bristle tufts, each bristle tuft comprising a plurality of plastic bristles and dimensioned to be received within the oral cavity of a human user, each bristle tuft having a proximal end secured to the bristle carrier and a distal free end remote therefrom,
• wherein, at the proximal ends, centers of the bristle tufts are spaced from one another, wherein the bristle tufts are disposed in a spaced relationship to the motion axis and inclined in the direction of the motion axis.

An interproximal brush arrangement for use in a toothbrush having a drive mechanism for causing movement of the brush arrangement relative to a motion axis of the brush arrangement for cleaning teeth in an oral cavity of a user, said brush arrangement comprising

• a bristle carrier, and
• a plurality of upstanding bristle tufts, each bristle tuft having a proximal end secured to the bristle carrier and a distal free end remote therefrom, wherein the bristle tufts are disposed in a spaced relationship to the motion axis and inclined in the direction of the motion axis,
• wherein the bristle carrier forms a radially outermost surface of the brush arrangement.

An interproximal brush arrangement for use in a toothbrush having a drive mechanism for causing movement of the brush arrangement relative to a motion axis of the brush arrangement for cleaning teeth in an oral cavity of a user, said brush arrangement comprising

• a bristle carrier, and
• a plurality of upstanding bristle tufts, each bristle tuft having a proximal end secured to the bristle carrier and a distal free end remote therefrom, wherein the bristle tufts are disposed in a spaced relationship to the motion axis and inclined in the direction of the motion axis,
• wherein the free ends of bristles radially more adjacent the motion axis protrude beyond the free ends of bristles which are radially more remote from the motion axis.

An interproximal brush arrangement for use in a toothbrush having a drive mechanism for causing movement of the brush arrangement relative to a motion axis of the brush arrangement for cleaning teeth in an oral cavity of a user, said brush arrangement comprising

• a bristle carrier, and
• a plurality of upstanding bristle tufts, each bristle tuft having a proximal end secured to the bristle carrier and a distal free end remote therefrom, wherein the bristle tufts are disposed in a spaced relationship to the motion axis and inclined in the direction of the motion axis, and
• further including a middle tuft of bristles arranged between the inclined bristle tufts, the middle tuft being generally aligned with the motion axis.

An interproximal brush arrangement for use in a toothbrush having a drive mechanism for causing movement of the brush arrangement relative to a motion axis of the brush arrangement for cleaning teeth in an oral cavity of a user, said brush arrangement comprising

• a bristle carrier, and
• a plurality of upstanding bristle tufts, each bristle tuft having a proximal end secured to the bristle carrier and a distal free end remote therefrom, wherein the bristle tufts are disposed in a spaced relationship to the motion axis and inclined in the direction of the motion axis,
• wherein the bristles radially more adjacent the motion axis are of greater hardness than the bristles which are radially more remote from the motion axis.

An interproximal brush arrangement in combination with a toothbrush having an electric drive mechanism for moving the brush arrangement relative to a motion axis of the brush arrangement for cleaning teeth in an oral cavity of a user, said brush arrangement comprising

• a substantially planar bristle carrier, and
• a plurality of upstanding bristle tufts, each bristle tuft having a proximal end secured to the bristle carrier and a distal free end remote therefrom, wherein the bristle tufts are disposed in a spaced relationship to the motion axis and inclined in the direction of the motion axis.

An interproximal brush arrangement for use in a toothbrush having a drive mechanism for causing movement of the brush arrangement relative to a motion axis of the brush arrangement for cleaning teeth in an oral cavity of a user, said brush arrangement comprising

• a substantially planar bristle carrier, and
• a plurality of upstanding bristle tufts, each bristle tuft having a proximal end secured to the bristle carrier and a distal free end remote therefrom, wherein the bristle tufts are disposed in a spaced relationship to the motion axis and inclined in the direction of the motion axis,
• said brush arrangement in combination with a brush support section having a shaft adapted to be driven in rotation by the toothbrush and being in driving connection with the brush arrangement for causing movement of the brush arrangement relative the motion axis, the combination brush support section with the brush arrangement being removably attachable to the toothbrush.