• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    MANUAL TOOTHBRUSH. A manual toothbrush that has oral hygiene elements arranged in polygons with an oral hygiene element at each vertex, and that has several polygons aligned within each other. Oral hygiene elements can be bristles that can be of two different types, or elastomeric elements and can contain teeth polishing additives. The surface of the toothbrush head may be flat or may have its distal region from the handle tilted upwards.
    公开号:BR112014009989B1
    申请号:R112014009989-8
    申请日:2012-10-25
    公开日:2021-01-12
    发明作者:Christoph Geiberger；Wolf-Dieter Mueller
    申请人:Glaxosmithkline Consumer Healthcare Gmbh & Co. Kg；
    IPC主号:
    专利说明:

    [0001] [0001] This invention relates to toothbrushes, especially to and manual toothbrushes, that is, not driven by a motor.
    [0002] [0002] Manual toothbrushes are well-known devices that generally comprise an elongated handle with a head at one end of the handle, the head and handle defining a longitudinal direction of the toothbrush, not necessarily a straight line. Typically the head or cable is made of plastic material or a combination of plastic material and elastomer material, typically thermoplastic elastomer material. Oral hygiene elements extend from the surface of the head in a direction here called the direction of the bristle, despite the nature of the oral hygiene elements transversal to this longitudinal direction.
    [0003] [0003] Bristle filaments, typically made of polymer such as nylon or PBT, arranged in tufts that have an approximately circular envelope when cut through the direction of the bristle, are the most common type of dental cleaning element. It is known, for example, from USA 2,186,005 to arrange tufts of bristles in polygons arranged sequentially along the length of the head, with the ends of the tufts of bristles in a longitudinally undulating profile. WO-A 01/43548 discloses a toothbrush head with aligned polygons of tufts of bristles.
    [0004] [0004] Another common type of oral hygiene element is an elastomer oral hygiene element of which several different types are known. For example, GB-A 2,040,161 discloses longitudinally extending elastomer strips. GB-A 2,214,420 and WO-A 00/49911 both disclose a toothbrush that has a head from which small rubber pyramids extend. GB-A 214.701 discloses a toothbrush that has oral hygiene parts comprised of crepe rubber strips, in a theoretically discussed configuration of which the strips may have sandwiched bristles between the crepe rubber strips, A EP-A 0 370 766 discloses small rubber cylinders with button ends. US-A 4 128 910 discloses a toothbrush that has rubber oral hygiene parts of various pyramid and crest shapes. US-A 4,277,862 discloses a toothbrush that has resilient gum massage parts along the outer edges of the bristle pattern. US-A 4,288,883 discloses rubber cones. US-A 5,040,260 discloses a toothbrush that has a head from which small rubber cones extend. WO-A 965.696 discloses a toothbrush head provided with strips of a flexible and resilient material, typically a non-elastomeric nylon material, and typically aligned or perpendicular to or parallel to the longitudinal direction. WO-A 96/28994 discloses elastomer bars that extend perpendicular to the longitudinal direction and parallel to the edges of the head in combination with bristle bars that have an elongated cross section cut through the direction of the bristle, and also discloses that a curved rubber “Digging bar” at the tip of the head. WO-A 97/16995 discloses elastomer bristles. WO-A 98 / 18.364 discloses teeth polishing pads or structures such as fingers. WO-A 99/37181 discloses an outer ring of rubber fingers surrounding a dense inner bundle of bristles. WO-A 00/64307 discloses rubber bars with a generally triangular cross section. WO-A 00/76369 discloses elastomeric massage parts in the form of cylinders. WO-A 01/21036 discloses an elastomeric element as a longitudinally extending wall that runs for at least half the length of the head. WO-A 03/03680 discloses elastomeric oral hygiene elements that have a V-shaped cross section when cut through the direction of the bristle. Bristle filaments and elastomeric oral hygiene elements are often used in combination.
    [0005] [0005] In such toothbrushes the elements of oral hygiene are arranged in different patterns on the surface. WO-A 01/43584 discloses a toothbrush head with tufts of bristles arranged in concentric rings. It is known, for example, from US-A 4,608,968, US-A 5,735,011, US-A 6,983,507, US-A 7,089,621, WO-A 97/41753, WO-A 98/02062, WO -A 2004/026162, WO-A 2004/014182, WO-A 2006/044964, WO-A 2007/038061, and WO-A 2007/149919 arrange nylon bristle filaments and oral and elastomeric hygiene elements in various arrangements concentric polygonal.
    [0006] [0006] It is also known to incorporate a teeth polishing ingredient into teeth cleaning elements such as bristle filaments and oral hygiene elastomer elements. For example, EP-A-1538945A discloses pearlite, EP-A-0148726 discloses zirconia, US-A 5,735,011 discloses use of pumice, GB-A-0115289 discloses use of calcium carbonate.
    [0007] [0007] There is a progressive need in the toothbrush technique to explore new technologies and to discover new improved configurations of oral hygiene elements, with the intention of achieving, among other objectives, improved tooth cleaning, improved tooth polishing, penetration improved between the teeth, improved gum massage, and improved mouth feel. Other objectives and advantages of this invention will become apparent from the following description.
    [0008] [0008] According to this invention, a manual toothbrush is provided comprising an elongated handle with a head and end of the handle, head and handle defining a longitudinal direction of the toothbrush, oral hygiene elements extending from a surface of the head in a bristle direction transverse to this longitudinal direction, characterized by the fact that: the elements of oral hygiene include: either (A) first filaments of bristle placed in tufts that have a circular envelope, the tufts being arranged in polygons with a tuft at each vertex of the polygon, the polygons being aligned together in at least one polygon nest, several polygon nests being arranged sequentially in a longitudinal manner on the surface of the head, the surface comprising a surface region close to the cable is a distal surface region of the cable, the regions of proximal and distal surface forming an angle less than 180 ° between them, two nests being located respectively in the regions of proximal and distal surfaces, or: (B) first bristle filaments placed in tufts having a circular envelope of a second type of oral hygiene element different from the first bristle filaments and being: or second bristle filaments also placed in tufts having a circular envelope and having one or more different characteristics of the first bristle filaments, selected from a different length and or incorporating an additional tooth polishing ingredient in relation to the first bristle filaments; or: elastomeric oral hygiene elements optionally incorporating a polishing ingredient from among additional, and in which the first filaments of bristle and the second type of oral hygiene element are arranged on the surface in respective nested polygons of the oral hygiene elements with an oral hygiene element at each vertex of the polygon and comprising an outer polygon of first filaments bristle and an inner polygon of first bristle filaments. and between these outer and inner polygons, an intermediate polygon of the second type of oral hygiene elements.
    [0009] [0009] The aforementioned arrangements of oral hygiene elements in nested polygons or inclined surface regions or made of different materials, are believed to provide, among other things, one or more improved teeth cleaning, improved teeth polishing, improved penetration between the teeth, improved gum massage, and improved mouth feel.
    [0010] [00010] The first and second filaments of bristle, when present, are placed in tufts that have a circular envelope meaning that a circumference constructed including the outermost surfaces of the bristle filaments in the tuft is approximately circular. This is typically accomplished by mounting the tufts in circular socket holes on the surface in a well-known manner. Such tufts may suitably have a cross-sectional dimension when measured through the bristle direction of 0.5-1.1 mm. A preferred cross-sectional dimension is 0.75-0.85 mm. This is less than the typical dimension of approximately 1 mm used for tufts of toothbrush bristles, and this smaller dimension can assist in penetration between teeth. Suitably, the first bristle filaments can be made of a polymer such as polyamide (nylon) or polybutylene terephthalate (PBT). Suitably such first bristle filaments do not contain any teeth polishing ingredient in addition to the polymer from which the filament is made. Typically, such first bristle filaments may be 9-11 mm long, that is, the typical length of the preceding toothbrush bristle filaments.
    [0011] [00011] In modality (A) described above, suitably there may be two or three polygons in each of the different nests. The innermost of the nested polygons may in other ways be empty of tufts, or within the polygon the most inwardly aligned may be one or two tufts of first bristles. Such two tufts can be aligned longitudinally or transversely.
    [0012] [00012] In modality (A) a suitable arrangement of the polygons in a nest comprises three polygons nested together with the innermost polygon being otherwise empty of tufts, or within the innermost polygon, there should be one or two tufts of first bristles. Another suitable arrangement of polygons in a nest comprises two polygons nested together, with the innermost polygon being otherwise empty of tufts, or within the innermost polygon there is one or two tufts of first bristles.
    [0013] [00013] In modality (A), appropriately, there may be three nests arranged sequentially in a longitudinal manner on the surface of the head with two of the nests on the proximal surface region and one of the nests on the distal surface region forming an angle less than 180 ° with the proximal surface region.
    [0014] [00014] In modality (A) the angle less than 180 ° is preferably in the range of 170-177 °, for example, 175 ± 2 °. This angle less than 180 ° between the proximal and distal regions can be used to cause the tufts over the distal and proximal regions to extend from their respective regions at converging angles, especially if the tufts extend perpendicularly from the surface in the respective distal and proximal regions.
    [0015] [00015] In modality (B) the second type of oral hygiene element can be second bristle filaments made of the same polymer material as the first bristle filaments, for example, nylon or PBT. Alternatively and preferably, second bristle filaments are made of a different polymer material than the first bristle filaments. For example, first filament of bristle can be made of nylon (polyamide) and second filament of bristle can be made of PBT.
    [0016] [00016] Such second bristle filaments may be of a different length than the first bristle filaments. For example, second filaments of bristle may be shorter than the first filaments of bristle, for example, 1-2 mm shorter. Alternatively, second filaments of bristle may be longer than the first filaments of bristle, for example, 1-2 mm longer. Longer first or second filaments of bristles tend to penetrate between the teeth, while shorter first or second filaments of bristle contact and polish the tooth surfaces.
    [0017] [00017] In addition or alternatively to such a difference in length, such second bristle filaments may incorporate one or more additional tooth polishing ingredients in relation to the first bristle filaments.
    [0018] [00018] In modality (B) the second type of oral hygiene element can be elastomeric oral hygiene elements. The forms of elastomeric oral hygiene element described above may be suitable. A preferred form of elastomeric oral hygiene element is a cylinder (the term as used herein includes shapes with an oval or circular cross section flattened at the poles), or a truncated cone in the form of a cylinder that tapers smoothly away from the head. , so that the diameter at the remote end from the head is approximately 3070% of the diameter at the end adjacent to the surface. Typically such a truncated cylinder or cone may have a diameter of 0.7-0.9 mm at its end adjacent to the surface. Such a truncated cylinder or cone, suitably, has a rounded end. Such elastomeric oral hygiene elements can be longer than the first bristle filaments, for example, 1-2 mm longer.
    [0019] [00019] Elastomer materials suitable for such oral hygiene elements elastomers are thermoplastic elastomer materials of the type currently used for elastomeric oral hygiene elements in toothbrushes. Thermoplastic elastomer materials have the advantage that they can be easily processed and formed into articles shaped by injection molding, as will be described below. Suitable elastomeric materials are thermoplastic polyester elastomeric materials available under the name Hytrel ™ with Shore D 30-100 hardness, especially Shore D 80 ± 10.
    [0020] [00020] These elastomeric oral hygiene elements can incorporate one or more additional teeth polishing ingredients.
    [0021] [00021] Additional teeth polishing ingredients suitable, for example, for the second type of oral hygiene elements, whether these second bristle filaments or elastomeric oral hygiene elements, include polishing ingredients from among known such as calcium carbonate, silicon dioxide, zirconia oxide, aluminum oxide, zirconium silicate, perlite and pumice. A preferred tooth polishing ingredient is perlite. A suitable grade of perlite is the Europel 50 ™ material which is commercially available from Lehmann & Voss Co, (Germany). This perlite material is also known as E50 perlite. A specification of this perlite material is provided in EP 1,538,945 Bl [00300032], A suitable particle size for the tooth polishing ingredient is 0.01-40 microns, preferably 5-30 microns, especially 18 ± 3 microns. A suitable loading of the tooth polishing ingredient is 0.2 to 25% by weight, preferably 3-10% by weight, for example, approximately 5% by weight.
    [0022] [00022] In modality (B) the outer polygon of the first tufts of bristle may be the outermost elements of oral hygiene in a nest of polygons. Alternatively, there may be elements of oral hygiene more outwardly than this outer polygon, for example, a polygon the outermost of oral hygiene elements being, for example, tufts of bristle filaments or oral hygiene elements elastomers. The oral hygiene elements of such a outermost polygon of oral hygiene elements, may incorporate one or more additional teeth polishing ingredients as described above.
    [0023] [00023] In modality (B), nested within the inner polygon of first filaments of bristles, there may be a single tuft of first or second filaments of bristle or a single element of oral hygiene elastomer that optionally incorporates an additional tooth polishing ingredient of properly in the center of this innermost polygon. This single tuft of elastomeric oral hygiene can be the same or different length as the inner polygon of tufts of bristle filaments.
    [0024] [00024] In modality (B) nested within the inner polygon of the first bristle filaments, there may be a more inner polygon of the second type of oral hygiene elements. Aligned within this innermost polygon of the second type of oral hygiene elements there may be a single tuft of first or second filaments of bristle suitably in the center of this innermost polygon. This single tuft may have the same or different length as the inner polygon of tufts of bristle filaments.
    [0025] [00025] In modality (B) the polygons of different types of oral hygiene elements can be combined in different modalities.
    [0026] [00026] In a first embodiment there may be an outermost polygon of tufts of first bristle filaments and within this outermost polygon of first bristle filaments there may be an inner polygon of tufts of first bristle filaments and between these two polygons there may be there is an intermediate polygon of the second type of oral hygiene elements. In this embodiment, the second type of oral hygiene element may, for example, be an elastomer oral hygiene element that optionally incorporates an additional tooth-polishing ingredient or a tuft of second bristle filament optionally incorporating a tooth-polishing ingredient. Within the inner polygon of tufts of first bristle filaments there may be a single tuft of first bristle filaments.
    [0027] [00027] In a second embodiment (B) there may be an outermost polygon of first bristle filaments and an inner polygon of first bristle filaments, and between these outermost and inner polygons an intermediate polygon of the second bristle filaments that contains the additional tooth polishing ingredient, and within the inner polygon of first bristle filaments there may be a more inner polygon of second bristle filaments. Within the innermost polygon of tufts of second bristle filaments there may be a single tuft of first bristle filaments.
    [0028] [00028] In a third embodiment (B) there may be an outermost polygon of tufts of first bristle filaments and nested within this outermost polygon of first tufts of bristle there may be an inner polygon of tufts of first bristle filaments and between these two polygons there can be an intermediate polygon of the second type of oral hygiene element. In this embodiment the second type of oral hygiene element may, for example, be an elastomer oral hygiene element that optionally incorporates an additional tooth-polishing ingredient or tufts of second bristle filaments that optionally incorporate an additional tooth-polishing ingredient. Within the inner polygon of tufts of first bristle filaments there may be a single second type of oral hygiene element, for example, a single elastomer oral hygiene element optionally incorporating an additional tooth polishing ingredient, or a single tuft of second filament bristle optionally incorporating an additional tooth polishing ingredient.
    [0029] [00029] Combinations of these modalities (B) can be used together in a toothbrush head of this invention.
    [0030] [00030] An example of such a combination of modalities (B) is a combination of several polygon nests of the first modality.
    [0031] [00031] Another example of such a combination of modalities (B) is one or more polygon nests of the first modality combined on the toothbrush head with one or more polygon nests of the second or third modality.
    [0032] [00032] Another example of such a combination of modalities (B) is one or more polygon nests of the second modality combined on the toothbrush head with one or more polygon nests of the third modality.
    [0033] [00033] The respective nests in these combinations of modalities (B) can be placed sequentially in a longitudinal manner.
    [0034] [00034] In modalities (A) and (B), the polygons of the oral hygiene elements nested within each other can all be concentric.
    [0035] [00035] In modalities (A) and (B) the numbers of oral hygiene elements in these respective polygons on any particular toothbrush head of this invention, may vary with the size of the toothbrush head, its position on the head of the toothbrush, the size of the oral hygiene elements, and the spacing of the elements around the polygon. For example, the toothbrush head may taper in the direction away from the handle, so less space is available in front of the handle.
    [0036] [00036] In modality (A), typically an outermost polygon of first tufts in the nest can contain 15-20 tufts. Within such an outermost polygon there may be an inner polygon that typically contains 8-14 first tufts. Within such an interior polygon there may be a more interior polygon, typically containing 4-8 first tufts.
    [0037] [00037] In modality (B) an outer polygon of tufts of the first bristle filaments may contain 15-20 tufts, an inner polygon of the second type of oral hygiene elements may contain 10-12 of such elements, and a more interior polygon of tufts of the first filaments of bristle can contain 3-10 tufts.
    [0038] [00038] In modalities (A) and (B) the shape of the polygons will be determined by the number of elements in the polygon, for example, 8 elements will form an octagon. A polygon can be regular or irregular in shape. Spaces between oral hygiene elements around a polygon may be uniform or may be irregular. In polygons, the respective oral hygiene elements may all be at the same distance from the center of the polygon or, alternatively, their distance from the center may vary. For example, around the polygon, alternating oral hygiene elements may be at relatively greater or lesser distances from the center of the polygon. Oral hygiene elements in nested polygons can be radially in line with the center of the nest or can be displaced circumferentially in relation to each other.
    [0039] [00039] In modalities (A) and (B) the dimensions, for example, widths of these polygons, will depend on the space available on the toothbrush head, which may otherwise be of a conventional size and shape. Typically, the widest polygon can be 10-12 mm across the longitudinal direction of the toothbrush or across the toothbrush perpendicular to it.
    [0040] [00040] In modalities (A) and (B), polygon nests of oral hygiene elements can be located adjacent to each other on the surface, for example, longitudinally adjacent to each other. For example, the toothbrush head may comprise two or three longitudinally adjacent nests of polygons of oral hygiene elements. Polygons of oral hygiene elements can intercept in such a way that they have oral hygiene elements, for example, tufts of first bristles, tufts of second bristles, or elastomeric oral hygiene elements, in common, for example, with their outermost polygon or its outermost polygon and one or more inner polygons in common, so that one or more elements of oral hygiene is part of two polygons.
    [0041] [00041] In modalities (A) and (B) the elements of oral hygiene can extend perpendicular to the surface of the head or they can extend at an angle not perpendicular to the surface of the head. Oral hygiene elements may all extend in the same direction, or some oral hygiene elements may extend at a converging or diverging angle to the direction in which other oral hygiene elements extend. For example, oral hygiene elements relatively closer to the toothbrush handle may extend in a first direction from the surface, for example, perpendicular to the surface, and other oral hygiene elements from the handle may extend into a second direction that converges with this first direction.
    [0042] [00042] For example, in modalities (A) and (B) the oral hygiene elements can be placed in three nests placed longitudinally of polygons with the elements of the two polygons closest to the handle extending perpendicularly from the surface, the elements of the polygon furthest from the cable inclined at an angle not perpendicular to the surface, such that the elements are inclined towards the cable. For example, oral hygiene elements can be placed in three polygon nests placed longitudinally, with the elements of the three polygon nests extending perpendicularly from the surface, but the part of the surface from which one of the polygon nests is located. extends can be at an angle not 180 ° with the part from which the other two polygon nests extend, so that the oral hygiene elements in this last polygon nest are at a converging angle in relation to the orientation of the other two polygon nests.
    [0043] [00043] In modalities (A) and (B) the ends away from the surface of all the elements of oral hygiene in a polygon can all be at the same height from the bristle surface, for example, they can be located in a perpendicular plane towards the bristle. Alternatively, these ends can be at heights such that when viewed transversely to the direction of the bristles they are situated in a curve. For example, the ends of longitudinally successive oral hygiene elements may be at distances from the surface and that curl or curl from the bristle surface with a longitudinal distance. For example, the distance from oral hygiene elements, especially those in the outermost polygons, extends from the surface can increase sequentially from the oral hygiene elements closest to the longitudinal centerline to the oral hygiene elements in the direction of width opposite each other, such that these oral hygiene elements opposite in the direction of the width are the highest in the polygon. The ends of the oral hygiene elements away from the surface can be parallel to the surface or alternatively they can be profiled, for example, rounded or domed. If the ends are in a curve or they ripple in height as described above, the ends can be shaped to match this curve or ripple.
    [0044] [00044] In modalities (A) and (B) the tufts of first and / or second types of toothbrush bristle filaments of this invention can be fixed on the surface of the head using conventional techniques, such as fixing small metal anchors to the around the tufts and inserting these anchors plus the tufts into socket holes on the surface. Alternatively, tufts can be shaped into the toothbrush head using the known technique of enclosing the tuft ends in the cavity of an injection mold that defines the shape of the head, and injecting plastic material around these ends.
    [0045] [00045] Known injection molding techniques can be used to make oral hygiene elastomer elements, for example, enclosing the plastic part of the head in an injection mold cavity that defines the shape of the elastomer elements, and then injecting elastomer into this form the elements.
    [0046] (1) fazer uma placa cabeça de um material plástico utilizando moldagem por injeção e incluindo furos soquete para tufos de filamentos de cerda de náilon; (2) encerrar esta placa cabeça na cavidade de um molda de injeção definindo a forma dos elementos de higiene oral elastômeros, e então injetar material elastômero nesta cavidade, para com isso formar as partes de higiene oral de elastômero; (3) inserir tufos com suas extremidades mantidas por âncoras nos furos soquete na placa de cerda; (4) fixar, por exemplo, por soldagem, tal como ultrassônica ou de maneira térmica, a placa cabeça sobre a cabeça da escova de dentes. [00046] A preferred technique for forming elastomeric oral hygiene elements is, however: (1) making a plastic material head plate using injection molding and including socket holes for tufts of nylon bristle filaments; (2) enclosing this head plate in the cavity of an injection mold defining the shape of the elastomeric oral hygiene elements, and then injecting elastomeric material into this cavity, thereby forming the elastomeric oral hygiene parts; (3) insert tufts with their ends held by anchors in the socket holes in the bristle plate; (4) fix, for example, by welding, such as ultrasonic or thermally, the head plate on the toothbrush head.
    [0047] [00047] Other parts of the toothbrush of this invention may be conventional or incorporate known aspects and be made of plastic materials conventional in the toothbrushing technique. For example, the cable may include the V-shaped folded region of EP-A-0336641. For example, the toothbrush head can incorporate the region of the flexibly hinged tip of WO-A-9707707. For example, the toothbrush can incorporate the resilient and flexible joint between head and handle of WO-A-9724929 For example, the toothbrush can incorporate the resilient flexible hinge combination between head and handle, and a flexibly hinged tip region on the head as in WO-A-9837788.
    [0048] [00048] The invention will now be described by way of example only with reference to the accompanying drawings.
    [0049] [00049] Figure 1 shows a perspective view of the head of a toothbrush of modality (B) of this invention.
    [0050] [00050] Figure 2 shows a perspective view of another head of a toothbrush of the type (B) of this invention.
    [0051] [00051] Figure 3 shows a method of manufacturing a toothbrush head of the mode (B) of this invention.
    [0052] [00052] Figure 4 shows a perspective view of another toothbrush head of the type (B) of this invention.
    [0053] [00053] Figure 5 shows a plan view of the surface of the head of a toothbrush of the modality (A) of this invention.
    [0054] [00054] Figure 6 shows a side view of the toothbrush head in figure 5.
    [0055] [00055] Referring to figure 1, the head 10 and the immediately adjacent part of the handle 11 of a manual toothbrush is shown. The head and handle define a longitudinal direction L-L of the toothbrush. The head 10 in figure 1 has a flat surface 2 from which oral hygiene elements 13 generally extend in a bristle direction Β transversal to the longitudinal direction Β. Head 10 has a length and width similar to that of conventional toothbrushes.
    [0056] [00056] The oral hygiene elements are arranged as follows in figure 1. First bristle filaments in tufts 1311, 1312 which have a circular wrapper of second type of oral hygiene elements 132 which are elastomeric oral hygiene elements, are arranged on the surface in respective polygons nested concentric with an oral hygiene element 1311, 1312, 132 at each vertex of the polygon. The oral hygiene elements 1311, 1312, 132 are arranged in the form of an outermost polygon of the first filaments of bristle 1311 and an inner polygon of first filaments of bristle 1312, and between these outermost and inner polygons an intermediate polygon is nested. oral hygiene elements elastomers 132 that incorporate additional teeth polishing ingredient. Within the inner polygon of first filament of bristle 1312 there is a single tuft 132 of first filament of bristle. The polygons of oral hygiene elements 1311, 1312, 132 are concentric and the tuft 1313 is in the center of the innermost polygon of tufts 1312. In the toothbrush head shown in figure 1 around the alternating outer tufted polygons 1311 of first filaments bristle are at relatively greater or lesser distances from the center of the polygon.
    [0057] [00057] Tufts 1311, 1312 and 1313 have a circular cross section achieved by mounting tufts 1311, 1312, 1313 in holes selected circular sockets 133 on surface 12 in a well known manner. Tufts 1311, 1312, 1313 have a cross-sectional dimension as measured through the de bristle direction of 0.75-0.85 mm, and have a length of 9-11 mm.
    [0058] [00058] The oral hygiene elastomer elements 132 are each in the form of a cylinder that tapers smoothly away from the surface 12 of the head 10, so that the diameter at the far end of the head 10 is approximately 30-70 % of diameter at the end adjacent to the surface 12. These truncated cones have a diameter of 0.7-0.9 mm and their ends adjacent to the surface 12 have a rounded end away from the surface 12. The elastomeric oral hygiene elements 132 are 1 -2 mm longer than the first bristle filaments in tufts 1311, 1312, 1313.
    [0059] [00059] The first bristle filaments in tufts 1311, 1312 and 1313 are made of polyamide (nylon). The oral hygiene elements elastomers 132 are made from the thermoplastic elastomer material Hytrel ™ and incorporate 510% by weight of a particular tooth polishing material selected from pumice, zirconia, perlite with a particle size of approximately 6 microns.
    [0060] [00060] In the toothbrush head of figure 1 there are three polygon nests of the oral hygiene elements 1311, 1312, 132 arranged longitudinally along the surface 12. In the nest closest to the end of the head 10 away from the handle 11 does not exist innermost tuff 1313, only one inner polygon 1312 of three tufts of first bristle filaments. The two adjacent nests of oral hygiene elements 1311, 1312, 1313 closest to cable 11 have some of their outermost polygon bristle tufts 1311 in common, so that these tufts 1311 are part of both nests.
    [0061] [00061] The numbers of oral hygiene elements 1311, 1312, 1313, 132 present in the nests can be counted from figure 1. Polygons can contain more or less elements of oral hygiene than shown in figure 1.
    [0062] [00062] In the two adjacent nests of oral hygiene elements 1311, 1312, 1313, 132 closest to the handle 11, the oral hygiene elements 1311, 1312, 1313, 132, extend perpendicular to the surface 12 of the head, however in the nest further away from the head the bristle direction Bl of the oral hygiene elements 1311, 1312, 132 extends at an angle not perpendicular to the surface 12 of the head, at an angle convergent with the direction in which the oral hygiene elements 1311, 1312 , 1313, 132 of the nests closest to the cape extend.
    [0063] [00063] In figure 1, the nest of oral hygiene elements furthest from cable 11 is, therefore, according to the first modality described above, and the two nests closest to cable 11 are also according to the first modality discussed above. , with the central tuff 132 in the center of the nests.
    [0064] [00064] Head 10 is connected to cable 11 via flexible joint 14 of known type.
    [0065] [00065] Referring to figure 2, the head 20 and the immediately adjacent part of the handle 21 of a manual toothbrush are shown. Head 20 and handle 21 define a longitudinal direction L-L of the toothbrush. The head 20 in figure 2 has a surface 22A, 22B of which the part 22A furthest from the cable is inclined at an angle of less than 180 ° with respect to the part 22B closest to the cable and articulated to the part 22B by a resilient joint and flexible 22C.
    [0066] [00066] Oral hygiene elements 23 generally extend in a bristle direction Β transversal to the longitudinal direction Β. The head 20 has a length and width similar to that of conventional toothbrushes. The head 20 is connected to the handle 21 by means of flexible hinge 24 of known type.
    [0067] [00067] The oral hygiene elements are arranged as follows in figure 2. First, the tufted bristle filaments 2311, 2312 which have a circular envelope and the second type of oral hygiene elements 2311 being second bristle filaments placed in tufts which have a circular envelope and which contains an additional tooth polishing ingredient in relation to the first bristle filaments 2311, 2312, are arranged on the surface in respective polygon nests with an oral hygiene element 2311, 2312, 2321 at each vertex of the polygonal nest. The tuft bristle filaments 2321, 2322 are made of the same polymer material as the first bristle filaments 2311, 2312, 2313, that is, nylon, and incorporate known tooth polishing ingredient calcium carbonate in a 5-10 load % by weight and particle size of approximately 6 microns. The oral hygiene elements 2311, 2312, 2321 are arranged in the form of an outermost polygon of first bristle filaments 2311 and an inner polygon of first bristle filaments 2312 between these outermost and inner polygons is nested an intermediate polygon of tufts 2321 of second bristle filaments.
    [0068] [00068] In the toothbrush head of figure 2 there are three polygon nests of oral hygiene elements 2311, 2312, 2313 and 2321, arranged longitudinally along the surface 22. Within the inner polygon of tufts 2312 of first filament of bristle from the two nests closest to the handle 21 there is an innermost polygon 2322 of the second bristle filaments containing the additional tooth polishing ingredient, and within this innermost polygon 2322 there is a single tuft 2313 of first bristle filaments. In the nest closest to the end of the head 20 away from the cable 21, the inner polygon 2322 of second bristle filaments no longer exists, but there is an innermost tuft 2323 of second bristle filaments. The two adjacent nests of oral hygiene elements 2311, 2312, 2313, 2321 and 2322 closest to cable 21 have some of their outermost tufts 2311 and intermediate polygon of tufts 2321 in common, so that these tufts 2311 and 2321 are part of both nests.
    [0069] [00069] The oral hygiene elements polygons 2311, 2312, 2321 and 2322 are concentric and the tuft 2313 is in the center of the innermost polygon of tufts 2322.
    [0070] [00070] Tufts 2311, 2312, 2333, 2321 and 2322 have a circular cross section achieved by mounting tufts 2311, 2312, 2313, 2321 and 2322 in circular sectioned socket holes 23 on surface 22 in a well known manner. Tufts 2311, 2312, 2333, 2321 and 2322 have a cross-sectional dimension as measured through the de bristle direction of 0.75-0.85 mm, and have a length of 9-11 mm. Tufts 2321 and 2322 are approximately 1-2 mm shorter than tufts 2311,2312, 2313.
    [0071] [00071] The numbers of oral hygiene elements 2311, 2312, 2321, 2322 present in the polygon can be counted from figure 2. Polygons can contain more or less elements of oral hygiene than shown in figure 2.
    [0072] [00072] In the three polygons of oral hygiene elements 2311, 2312, and 2321 and 2322, the oral hygiene elements 2311, 2312, 2313, 2321 and 2322 extend perpendicular to the surface 22 of the head. Since the part 22A of the surface 22 is inclined at an angle to the part 22B the direction of the bristle B2 of the oral hygiene elements 231,2312, 2321, 2322 of the polygon over the part 22A extends at an angle convergent with respect to the direction in which the oral hygiene elements of the polygons closest to the cable 22 extend.
    [0073] [00073] In figure 2 the nest of oral hygiene elements furthest from cable 21 is, therefore, according to the first modality described above, and with a single central oral hygiene element 2323. The two nests closest to cable 21 are according to the second modality discussed above and with the only element of central oral hygiene 2313.
    [0074] [00074] Referring to figure 3, it shows schematically a method of manufacturing a toothbrush head according to figure 1.
    [0075] [00075] In figure 3A, part of a head plate 31 of a plastic material is shown cut in a section along the longitudinal direction of a toothbrush head of which it must be part. The head plate 31 is made of plastic material such as polypropylene, using known injection molding techniques. The upper surface 32, as shown, of the head plate 31 corresponds to the surface 12 of the toothbrush head 10 shown in figure 1, and in plan view looking downwards towards the bristle da the shape of the surface 32 corresponds to the shape of the surface 12 of figure 1. The head plate 31 is made with conventional socket holes 33 for tufts of nylon bristle filaments, which correspond to the holes 133 of figure 1. The head plate 31 also includes channels 34 formed by means of corresponding taps in the injection mold (not shown) used to make the plate 31. The channels 34 are hinged by flow channels 35 on the surface 36 of the head plate 31 opposite the surface 32. As seen in figure 3B, the head plate 31 was enclosed in the cavity 36 of an injection mold 37 defining the shape of the oral hygiene elements elastomers 38, and then elastomer material was injected into the cavity 36 through the injection hole 39, to form the hygiene elements oral elastomers 38. As seen in figure 3C, tufts of first bristle filaments 310 were fixed to socket 33 holes in a conventional manner, using small metal anchors 311. As seen in figure 3D, a toothbrush head 10 and handle integral 11 were made of plastic material, for example, polypropylene, through a conventional injection molding process, and including a cavity 312 that corresponds to the shape of the head plate 31. As seen in figure 3E, the head plate 31 was fixed by ultrasonic welding in cavity 312 to result in the toothbrush head as shown in figure 1.
    [0076] [00076] Referring to figure 4, the head 40 and the immediately adjacent part of the handle 41 of a manual toothbrush is shown. The head and handle define a longitudinal direction L-L of the toothbrush. The head 40 in figure 4 has a flat surface 42 from which oral hygiene elements 43 generally extend in a bristle direction transverse to the longitudinal direction Β. The head 40 has a length and width similar to that of conventional toothbrushes.
    [0077] [00077] The oral hygiene elements are arranged as follows in figure 4. First bristle filaments made of nylon and placed in tufts 4311, 4312, 4313 having a circular envelope and second type of oral hygiene elements 432, 4321 being tufts Second bristle filaments made of PBT and incorporating pearlite (Europerl 50 ™) as a tooth polishing ingredient, are arranged on the surface in respective polygons nested concentric with an oral hygiene element at each vertex of the polygon. The tufts 4311, 4312, 4313, 432 and 4321 have a circular cross section achieved by mounting them in circular sectioned socket holes (not shown) on the surface 42 in a well known manner.
    [0078] [00078] In the toothbrush head of figure 4 there are three polygon nests of the oral hygiene elements arranged longitudinally along the surface 42.
    [0079] [00079] In the two polygon nests closest to cable 41, oral hygiene elements 4311, 4312, 432 are arranged in the form of an outermost polygon of first filament of bristle 4311, an inner polygon of first filament of bristle 4312, between these outer and inner polygons an intermediate polygon of tufts of second filament of bristle 432, within the interior polygon of first filament of bristle 4312 there is an interior polygon of second filament of bristle 4321 and within the center of this interior polygon 4321 there is a single tuft 4313 of first bristle filaments. The polygons of oral hygiene elements 4311, 4312, 432, 4321 are concentric and tuft 4313 is in the center of the innermost polygon of tufts 4321. The two adjacent nests of oral hygiene elements closest to cable 41 have some of their polygon second tufts of bristles 432 in common, so that these tufts 432 are part of both nests
    [0080] [00080] In the polygon nest furthest from the cable 41, the oral hygiene elements are arranged in the form of an outermost polygon of the first filaments of bristle 4314, a polygon within the first filaments of bristle 4313, between these polygons outermost and inside, an intermediate polygon of the tufts of second filaments of bristle 4322 and inside the interior polygon of second filaments of a certain 4315 there is a single tuft 4323 of second filaments of bristle. The polygons of oral hygiene elements 4314, 4315, 4322 are concentric and the tuft 4323 is in the center of the innermost polygon of tufts 4315.
    [0081] [00081] The numbers of oral hygiene elements 4311, 4312, 4313, 4314, 4315, 432, 4321, 4322 present in the nests can be counted from figure 4. Polygons can contain more or less oral hygiene elements than shown in figure 4.
    [0082] [00082] The nests of oral hygiene elements extend perpendicular to the surface 42 of the head. The surface area 42 from which the nest of oral hygiene elements furthest from the cable extends is at an angle of less than 180 ° with the area from which the two nests closest to the cable extend, from so that the bristle direction of one of the oral hygiene elements in the nest furthest from the cable is at a converging angle in relation to the direction Β in which the oral hygiene elements of the two nests closest to the cable 41 extend.
    [0083] [00083] In each of the three nests of oral hygiene elements the tufts of second filaments of bristle 432, 4321, 4322, 4323 respectively present in that nest extend to the same height from surface 42, although the height for which tufts in different nests they extend may differ. However, in each of these three nests of oral hygiene elements, the distance of tufts of first filaments of bristle 4311 and 4314 in the outermost polygons increases sequentially from the tufts closest to the longitudinal centerline to the transverse tufts opposite each other. another such that these opposite transverse tufts are the highest.
    [0084] [00084] The head 40 is connected to the cable 41 by means of flexible articulation 44 of known type.
    [0085] [00085] Referring to figures 5 and 6, the head 50 and the immediately adjacent part of the handle 51 of a manual toothbrush are shown. The head and handle define a longitudinal L-L direction of the toothbrush. The head 50 in figure 5 has a surface comprising a surface region 52 proximal to the cable 51 and a surface region 53 distal to the cable 51, the regions of the proximal and distal surface 5253 forming an angle of approximately 175 ° between them and being divided from each other on the fold line in the direction of width 54 in which region 53 begins to tilt upward. The head 50 has a length and width similar to that of conventional toothbrushes.
    [0086] [00086] Figure 5 shows in plan view the circular sectioned socket holes 55, generally in surface regions 5253, in which tufts of bristles (not shown in figure 5) can be mounted in a well-known manner, to form this tufts (not shown) with a circular envelope in an arrangement that corresponds to holes 55. These holes 55 and, consequently, the tufts of first bristles, are arranged as follows in figure 5. In the following description tufts are described as being in holes 55.
    [0087] [00087] The tufts 56, 57, 58, 59, 510, 511, 512 of first bristle filaments are arranged in polygons with a tuft 56, 57, 58, 59, 510, 511, 512 at each vertex. Tufted polygons 56, 57, 58, 59, 510, 511, 512 are nested together in three polygon nests. A nest comprises an outermost tufted polygon 56 and an inner tufted polygon 57 with two tufts 514 within the inner tufted polygon 57 and longitudinally aligned is located completely over the surface region 53. The two nests are located in the surface region 52. One of these two nests comprises an outermost tufted polygon 58, an inner tufted polygon 510 and an innermost tufted polygon 512 with a single tuft 515 within the innermost tufted polygon 512. The other of these two nests comprises an outermost tufted polygon 59, inner tufted polygon 511 and innermost tufted polygon 513. The tuft numbers present in these polygons can be counted from figure 5, however more or less tufts may be present as required.
    [0088] [00088] The tufted polygons 56, 57, 58, 59, 5 10, 511, 512 in figure 5 are concentric. The two adjacent tuft nests 58, 59, 510, 511, 512 in surface region 52 closest to cable 51 have some of their tufts 58, 59, 510, 511, 512 in common, so these tufts 58, 59 , 510, 511, 512 are part of both nests.
    [0089] [00089] Figure 6 shows a side view of the toothbrush head 50 of figure 5. Figure 6 clearly shows the 175 ° angle of region 53 in relation to region 52, that is, the angle α is 5o. Figure 6 generally shows at 60 the tufts 56, 57, 58, 59, 510, 511, 512, 513, 514, 515 in their three nests as described above, and also shows that the ends of the bristle filaments in tufts 56, 57, 58, 59, 510, 511, 512, 513, 514, 515 are at distances from the surface 5253 that ripple with the longitudinal distance growing to rounded peaks 61, 62, 63 that correspond to nests with 6465 trough lengthwise between the peaks 61, 62, 63.
    [0090] [00090] Figure 6 also shows how tufts 56, 57, 58, 59, 510, 511, 512, 513, 514, 515 in regions 52 and 53 extend perpendicularly from the surface of regions 52 and 53, but as a consequence of the angle of less than 180 ° between regions 52 and 53 the tufts 56, 57 and 514 of the nest furthest from the cable 51 tilt at an angle not perpendicular to the surface of the region 52, such that the tufts 56 , 57 and 514 tilt towards cable 51 and extend in a direction that is convergent with the direction in which the tufts 58, 59, 510, 511, 512, 513, 514 extend.
    [0091] [00091] The head 50 is connected to the cable 51 through flexible joint 516 of known type.
    权利要求:
    Claims (7)
    [0001]
    Manual toothbrush, comprising an elongated handle (11) with a head (10) at one end of the handle (11), the head (10) and handle (11) defining a longitudinal toothbrush direction (LL), elements oral hygiene (13) extending from a surface (12) of the head (10) in a direction of bristle (B) transversal to this longitudinal direction, characterized by the fact that the elements of oral hygiene (13) comprise: first bristle filaments placed in tufts (1311, 1312, 1313) having a circular envelope, the tufts (1311, 1312, 1313) being arranged in polygons with a tuft at each vertex of the polygon, the polygons being nestled together in at least one polygon nest, several polygon nests being arranged sequentially in a longitudinal manner on the surface (12) of the head (10), the surface (12) comprising a surface region (22B) proximal to the cable (11) and a surface region (22A) distal to the cable (11), the proximal and distal surface regions (22B, 22A) forming an angle less than 180 ° between them, two nests being located respectively in the proximal and distal surface regions, the bristle tufts (1311, 1312, 1313) having a dimension cross section as measured in the direction of the bristles of 0.5 - 1.1 mm; and the ends of longitudinally successive oral hygiene elements in tufts (1311, 1312, 1313) are at distances from the surface (12) that undulate with longitudinal distance, ascending to rounded peaks (61, 62, 63) corresponding to the nests, with cavities (64, 65) longitudinally between the peaks (61, 62, 63).
    [0002]
    Manual toothbrush according to claim 1, characterized by the fact that there are two or three polygons in each of the nests.
    [0003]
    Manual toothbrush according to claim 1 or 2, characterized in that the innermost of the nested polygons is otherwise tufted.
    [0004]
    Manual toothbrush according to claim 1 or 2, characterized in that inside the innermost nested polygon there are one or two tufts (132) of first bristles.
    [0005]
    Manual toothbrush according to any one of claims 1 to 4, characterized in that it comprises three tufted polygon nests (1311, 1312, 1313) arranged sequentially in a longitudinal manner on the surface (12) of the head (10), with two of the nests on the proximal surface region (22B) and one of the nests on the distal surface region (22A) forming an angle less than 180 ° with the proximal surface region (22B).
    [0006]
    Manual toothbrush according to any one of claims 1 to 5, characterized in that the angle less than 180 ° is in the range of 175 ± 2 °.
    [0007]
    Manual toothbrush according to any one of claims 1 to 6, characterized in that polygon nests of oral hygiene elements (1311, 1312, 1313) located longitudinally adjacent to each other on the surface (12) intersect in such a way that they have elements of oral hygiene (1311) in common.
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    同族专利:
    公开号 | 公开日
    US9826822B2|2017-11-28|
    CA2852807A1|2013-05-02|
    EP2770871B1|2019-12-04|
    AU2012330433B2|2016-09-15|
    BR112014009989A8|2017-06-20|
    US20140310901A1|2014-10-23|
    MX2014005085A|2014-08-22|
    CN107232744A|2017-10-10|
    CN104010546A|2014-08-27|
    PL2770871T3|2020-06-01|
    EP2770871A1|2014-09-03|
    CN107232744B|2020-07-10|
    AU2012330433C1|2017-01-05|
    AU2012330433A1|2014-05-01|
    JP2014530725A|2014-11-20|
    WO2013060753A1|2013-05-02|
    JP6363505B2|2018-07-25|
    BR112014009989A2|2017-06-13|
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    JP2017051515A|2015-09-11|2017-03-16|ファミリー・サービス・エイコー株式会社|Oral brush|
    US10835027B2|2016-01-29|2020-11-17|The Malish Corporation|Brush head for use with floor cleaning machine|
    JP6973900B2|2016-05-31|2021-12-01|花王株式会社|toothbrush|
    CN109788840B|2016-09-26|2021-08-03|高露洁-棕榄公司|Oral care implement or head plate therefor and method of forming an oral care implement or head plate therefor|
    CN108078641B|2016-11-21|2021-05-28|高露洁-棕榄公司|Oral care implement|
    CN108078642B|2016-11-21|2021-02-09|高露洁-棕榄公司|Oral care implement|
    USD846285S1|2016-11-21|2019-04-23|Colgate-Palmolive Company|Oral care implement|
    USD826570S1|2017-06-01|2018-08-28|Colgate-Palmolive Company|Toothbrush|
    USD826569S1|2017-06-01|2018-08-28|Colgate-Palmolive Company|Toothbrush|
    USD828037S1|2017-06-01|2018-09-11|Colgate-Palmolive Company|Toothbrush|
    WO2020118604A1|2018-12-13|2020-06-18|Colgate-Palmolive Company|Oral care implement|
    USD883677S1|2018-12-13|2020-05-12|Colgate-Palmolive Company|Toothbrush|
    US11241079B2|2020-01-31|2022-02-08|Colgate-Palmolive Company|Oral care implement|
    GB202010533D0|2020-07-09|2020-08-26|Glaxosmithkline Consumer HealthcareIp Ltd|Electric toothbrush head|
    法律状态:
    2018-12-04| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|
    2019-11-19| B06U| Preliminary requirement: requests with searches performed by other patent offices: suspension of the patent application procedure|
    2020-11-17| B09A| Decision: intention to grant|
    2021-01-12| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 25/10/2012, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    GB1118603.8|2011-10-27|
    GB201118603A|GB201118603D0|2011-10-27|2011-10-27|Novel device|
    GB1204655.3|2012-03-16|
    GBGB1204655.3A|GB201204655D0|2012-03-16|2012-03-16|Novel device|
    GB1211162.1|2012-06-22|
    GBGB1211162.1A|GB201211162D0|2012-06-22|2012-06-22|Novel device|
    PCT/EP2012/071100|WO2013060753A1|2011-10-27|2012-10-25|Toothbrush|
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