Patent ID: 8763196
Filing Date: 2014-07-01
Classification: A46B

Abstract:
1. A toothbrush comprising a head and a grip handle integrally made of a plastics material and arranged along a head-handle longitudinal direction, with a neck region between the grip handle and the head, with bristles projecting from the head in a transverse direction relative to this longitudinal direction, the toothbrush having a width direction perpendicular to the longitudinal direction and to the transverse direction, longitudinally between the neck region and the grip handle is an undulating region, comprising limbs extending in the transverse direction and integrally linked by folds with troughs between the limbs, the troughs between the limbs having a transverse depth direction and containing a thermoplastic elastomer material bonded to the plastic material of said limbs, wherein the transverse directions of longitudinally adjacent pairs of limbs are aligned at an angle of 0-15° to each other, each of the four limbs having a longitudinal thickness “T” of 1.2-2.2 mm, and a transversely extending length “L” of 9-13 mm between transversely opposite folds, and a width “W” of 9-14 mm in the width direction, the four limbs defining longitudinally between longitudinally adjacent pairs of the limbs three troughs each with a transverse depth “D” of 6-11 mm, a longitudinal breadth “B” of 1-2 mm for at least 60% of the lower depth of the trough, each trough containing the thermoplastic elastomer; and wherein the thermoplastic elastomer material has a ShoreA hardness of 60-70.