Patent classifications
A46B3/20
Brush head assembly and methods of manufacture
A brush head (32) including a neck (40) having a brush neck (42); a plurality of bristle tufts (21), each of which includes a plurality of bristle strands with a free end (25) and a proximal end (23), the proximal end having a proximal end head portion (26); a plurality of retention rings (50), each configured to receive the proximal end of at least one of the plurality of bristle tufts; an elastomeric matrix (30) bonded to at least a portion of the brush neck, the plurality of retention rings, and the proximal end of the plurality of bristle tufts, wherein the proximal end head portion of each of the plurality of bristle tufts is configured to comprise a space (27) between the proximal end head portion and the respective retention ring.
Brush head assembly and methods of manufacture
A brush head (32) including a neck (40) having a brush neck (42); a plurality of bristle tufts (21), each of which includes a plurality of bristle strands with a free end (25) and a proximal end (23), the proximal end having a proximal end head portion (26); a plurality of retention rings (50), each configured to receive the proximal end of at least one of the plurality of bristle tufts; an elastomeric matrix (30) bonded to at least a portion of the brush neck, the plurality of retention rings, and the proximal end of the plurality of bristle tufts, wherein the proximal end head portion of each of the plurality of bristle tufts is configured to comprise a space (27) between the proximal end head portion and the respective retention ring.
Brush head arrangements
A brush head (100), including: an elastomeric matrix (30) including a first surface (32); a plurality of retention rings (50) disposed in the elastomeric matrix, each of which includes a first end (51), a second end (53) positioned closer to the first surface of the elastomeric matrix than the first end, an interior wall (55) forming an interior space (59) with a central longitudinal axis (111), and an exterior wall (57). At least one of the interior wall and the exterior wall of at least a first retention ring of the plurality of retention rings (50) includes a taper (61, 67, 73, 63, 69, 71). A plurality of bristle tufts (21), each of which comprises a plurality of bristle strands, having a proximal end (23) and a free end (25), is retained at its proximal end within the interior space of one of the plurality of retention rings.
Brush head arrangements
A brush head (100), including: an elastomeric matrix (30) including a first surface (32); a plurality of retention rings (50) disposed in the elastomeric matrix, each of which includes a first end (51), a second end (53) positioned closer to the first surface of the elastomeric matrix than the first end, an interior wall (55) forming an interior space (59) with a central longitudinal axis (111), and an exterior wall (57). At least one of the interior wall and the exterior wall of at least a first retention ring of the plurality of retention rings (50) includes a taper (61, 67, 73, 63, 69, 71). A plurality of bristle tufts (21), each of which comprises a plurality of bristle strands, having a proximal end (23) and a free end (25), is retained at its proximal end within the interior space of one of the plurality of retention rings.
Methods of manufacturing a hair brush and hair brushes made therefrom
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.
Methods of manufacturing a hair brush and hair brushes made therefrom
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.
Brush head assembly and methods of manufacture
A brush head (32) including: a supporting portion (42) of a brush neck (40); a plurality of bristle tufts (21), each of which comprises a plurality of bristle strands having a proximal end (23) and a free end (25), wherein each of the plurality of bristle tufts comprises a proximal end head portion (26) melted into a first shape within a mold; and an elastomeric matrix (30) comprising at least a portion of the hard brush neck and the proximal end head portions, wherein the first shape of the proximal end head portion is configured to engage the elastomeric matrix such that the bristle tufts are retained within the elastomeric matrix.
Brush head assembly and methods of manufacture
A brush head (32) including: a supporting portion (42) of a brush neck (40); a plurality of bristle tufts (21), each of which comprises a plurality of bristle strands having a proximal end (23) and a free end (25), wherein each of the plurality of bristle tufts comprises a proximal end head portion (26) melted into a first shape within a mold; and an elastomeric matrix (30) comprising at least a portion of the hard brush neck and the proximal end head portions, wherein the first shape of the proximal end head portion is configured to engage the elastomeric matrix such that the bristle tufts are retained within the elastomeric matrix.
Brush head manufacturing methods
A method (200) for manufacturing a brush head (100). The method includes the steps of providing a plurality of polypropylene bristle tuft retention rings (50), and inserting a respective nylon bristle tuft (21) into each of the bristle tuft retention rings. Heat is applied to each bristle tuft proximal end (23) at a temperature sufficient to at least partially melt the bristle tuft proximal end and create a proximal head portion (26). The platen (42) of the brush head is positioned in relation to the retaining rings (50) and proximal head portions (26) to define a space (92) in relation to the proximal head portions for injection of a thermoplastic elastomer, and the thermoplastic elastomer is injected into the space to create an elastomeric matrix (30) that at least partially encompasses the neck and the proximal head portions.
Brush head manufacturing methods
A method (200) for manufacturing a brush head (100). The method includes the steps of providing a plurality of polypropylene bristle tuft retention rings (50), and inserting a respective nylon bristle tuft (21) into each of the bristle tuft retention rings. Heat is applied to each bristle tuft proximal end (23) at a temperature sufficient to at least partially melt the bristle tuft proximal end and create a proximal head portion (26). The platen (42) of the brush head is positioned in relation to the retaining rings (50) and proximal head portions (26) to define a space (92) in relation to the proximal head portions for injection of a thermoplastic elastomer, and the thermoplastic elastomer is injected into the space to create an elastomeric matrix (30) that at least partially encompasses the neck and the proximal head portions.