The invention concerns a toothbrush head comprising a brush head housing, and a bristle carrier movable relative to the brush head housing around an axis of pivoting, the bristle carrier containing a plurality of tooth cleaning elements, wherein a first portion of bristles is arranged annularly and disposed in an outward leaning angle compared to the axis of pivoting by means of a wedge ring, and a second portion of bristles is arranged radially inwards of the first portion of bristles. The invention also concerns a method for manufacturing a toothbrush head.

A brush head apparatus of a multifunctional oral care tool comprises a pair of transmission rods (5) respectively connected with a pair of brush heads (1). The pair of brush heads (1) are integrally formed by using a food-grade silica gel type of soft material respectively. The pair of brush heads (1) respectively performs a 360-degree rotation in opposite directions. A back of the pair of brush heads (1) is provided with a back-flushing plate (4). An end portion of the transmission rods (5) is lower than an end portion of the brush heads (1). A top portion of the back-flushing plate (4) is lower than a top portion of the brush heads (1).

A brush head assembly (100) comprising a sandwich assembly (200) comprising a flexible matrix (30) positioned between two layers of stiff or stiffer material (220), a plurality of bristle tufts (21), each of which comprises a plurality of bristle strands, each bristle tuft having a proximal end (23) and a free end (25), a bristle tuft retention element (250) for each bristle tuft (21), the bristle tuft retention elements (250) connecting the proximal end of the bristle tufts (21) to the sandwich assembly.

A wash apparatus for a vehicle wash installation is provided, which includes a shaft drivable in rotation about a rotation axis and wash elements operatively connected thereto. In order to be able to adapt to the contour of a vehicle, the wash apparatus can be divided axially in two or more wash apparatus segments and that the at least one wash apparatus segment includes a wash element holding body having wash elements held thereto, said wash element holding body defining a wash apparatus segment axis which is different from the rotation axis, and a gear device which couples the shaft to the wash element holding body in order to rotate same about the wash apparatus segment axis, wherein the wash element holding body is configured for pivotal movement relative to the shaft via the gear device. Furthermore, a vehicle wash installation including a wash apparatus is provided.

The present invention is intended to provide a toothbrush which can increase a contact area between teeth and bristles and further enhance frictional force while a head on which the bristles are planted is elastically moving vertically and laterally in accordance with the shapes of the teeth, which can minimize the wear of teeth and the damage of periodontal tissues attributable to booth brushing by adjusting pressure excessively exerted on teeth by a toothbrush user, which enables a patient with a periodontal disease to more easily use bass technique-based tooth brushing, thereby helping the cleanliness of gums and the health of periodontal tissues, maximizing a tooth brushing effect, and contributing to the improvement of oral hygiene, and which can provide the convenience of fabrication.

An oral cleaning device comprises a body which carries a set of projections. An actuator device is associated with one or more of the projections in the form of an electroactive polymer structure for adjusting a position of the associated one or more projections. This enables dynamic control of the cleaning function.

An oral cleaning device comprises a body which carries a set of projections. An actuator device is associated with one or more of the projections in the form of an electroactive polymer structure for adjusting a position of the associated one or more projections. This enables dynamic control of the cleaning function.

There is provided a method of manufacture of a hair brush. The method has the steps, in the sequence of, i) forming a base layer in the form of a mesh by way of a first molding step, the base layer defining an upper surface and a lower surface opposite the upper surface, made of a first material selected from a group consisting of polypropylene (PP), nylon, polyoxymethylene (POM) and thermoplastic elastomer (TPE), and including a plurality of recesses with apertures at the upper surface, ii) forming a substrate layer for supporting bristles of the hair brush by a second molding step of overmoulding a finishing layer over the base layer, the finishing layer made of a second material; iii) installing the bristles to the substrate layer at the recesses through the apertures; and iv) assembling the substrate layer installed with the bristles to a casing of the hair brush.

There is provided a method of manufacture of a hair brush. The method has the steps, in the sequence of, i) forming a base layer in the form of a mesh by way of a first molding step, the base layer defining an upper surface and a lower surface opposite the upper surface, made of a first material selected from a group consisting of polypropylene (PP), nylon, polyoxymethylene (POM) and thermoplastic elastomer (TPE), and including a plurality of recesses with apertures at the upper surface, ii) forming a substrate layer for supporting bristles of the hair brush by a second molding step of overmoulding a finishing layer over the base layer, the finishing layer made of a second material; iii) installing the bristles to the substrate layer at the recesses through the apertures; and iv) assembling the substrate layer installed with the bristles to a casing of the hair brush.

A toothbrush includes an anisotropic deformation portion (70) on a rear end side from the bristle tufting surface (11), and a bending strength in a first direction orthogonal to the bristle tufting surface that is smaller than a bending strength in a second direction orthogonal to the long axis direction and the first direction. The anisotropic deformation portion includes an elastic deformation portion (90) that connects a first region on the tip end side from the anisotropic deformation portion and a second region on the rear end side from the anisotropic deformation portion. The elastic deformation portion is elastically deformable in the first direction and the second direction, and bending load when the head portion is displaced in the first direction is lower than a bending load when the head portion is displaced in the second direction.