• 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:
    BRUSH HEAD MANUFACTURING METHOD. The present invention relates to a method of making a brush head which includes the steps of: providing a bristle holder (200) on which is mounted at least one tuft of bristles (220) comprising a plurality of bristles (221), and a cover structure (100) that has at least one opening (110); constrict the free ends of the plurality of bristles (221) of the tuft of bristles (220) in a geometry in defined cross-section (G) so that it fits within the cross-sectional area (F) of the opening (100); moving the cover structure (100) and the bristle support (200) in relation to each other until the constricted bristle tuft (220A) and the opening (100) are positioned in spatial alignment; and releasing the constriction during the movement of the covering structure (100) to a final position in which the tuft of bristles (220) extends through the opening (100).
    公开号:BR112013004893B1
    申请号:R112013004893-0
    申请日:2011-09-28
    公开日:2021-02-09
    发明作者:Raimund Nirwing；Frank Gliemroth；Ulrich Stoerkel；Thomas Fritsch
    申请人:Braun Gmbh；
    IPC主号:
    专利说明:

    FIELD OF THE INVENTION
    [001] The present invention relates to a method of making a brush head from a toothbrush. The invention further relates to a brush head for a toothbrush. BACKGROUND OF THE INVENTION
    [002] It is known that a brush head for a toothbrush can be manufactured by providing a support on which one or more tufts of bristles, each comprising a plurality of bristles, are assembled (for example, with the use anchoring tuft technology). The holder can then be mounted on a brush tube so that it is movable in relation to the brush tube; For example, the holder can be a disk that is mounted on a brush tube to swivel around an axis perpendicular to the axis of the longitudinal extension of the brush tube (for example, as with the brush head of the Oral-B Precision Clean product).
    [003] It is desired to provide a method of manufacturing a brush head that provides additional design options. SUMMARY OF THE INVENTION
    [004] Such desire is satisfied by a method of making a brush head according to claim 1. The modalities are defined by the dependent claims.
    [005] In accordance with one aspect of the invention, a method of manufacturing a brush head is proposed which includes the steps of: - providing a bristle holder on which is mounted at least one tuft of bristles comprising a plurality of bristles, and a cover structure that has at least one opening; - constrict the free ends of the plurality of bristles of the bristle tuft in a geometry in a defined cross-section so that it fits within the cross-sectional area of the opening; - move the covering structure and the bristle support in relation to each other until the constricted bristle tuft and the opening are positioned in spatial alignment; and - releasing the constriction during the movement of the covering structure to a final position in which the tuft of bristles extends through the opening.
    [006] For the present invention, the term "constriction" of a tuft of bristles essentially means at least bringing the tuft of bristles into a predefined cross-sectional shape and, in particular, decreasing an area in cross-section of the tuft of bristles bristles by reducing the average distance between the bristles of the tuft of bristles.
    [007] Using the proposed method, tufts of bristles that have a width in the first direction of spatial extension of their free ends, which is approximately equal or even greater than the respective width of the opening, can be slid into the interior of the opening so that any damage (ie, trapped bristles, broken bristles, etc.) that might otherwise occur is effectively avoided.
    [008] In one aspect of the proposed method, a constrictor structure is used to constrict the tuft of bristles. The constrictor structure can have two or more constricting elements. At least one constricting element can have a comb-like structure. The teeth of this comb-like structure may have rounded edges.
    [009] The invention also relates to a toothbrush that comprises a brush head produced according to the proposed manufacturing method.
    [0010] The invention additionally deals with a brush head with a covering structure that has at least one opening and a bristle holder on which is mounted at least one tuft of bristles comprising a plurality of bristles extending through the opening, the opening having at least a first spatial extension direction of the opening, a width less than the respective width of the tuft of bristles at its free end and a toothbrush comprising such a brush head. BRIEF DESCRIPTION OF THE DRAWINGS
    [0011] The present invention will be further elucidated by a detailed description of exemplifying modalities and by reference to the figures. In the figures,
    [0012] Figure 1 is an illustration of an exemplary brush head as proposed;
    [0013] Figure 2 is a cross section cut through the brush head section shown in figure 1;
    [0014] Figure 3A is a schematic side view of a bristle holder that has tufts of bristles mounted on a mounting surface of the bristle holder;
    [0015] Figure 3B is a schematic top view of the bristle holder shown in figure 3A;
    [0016] Figure 4 is a schematic top view of a roof structure designed to be mounted on the bristle support shown in Figures 3A and 3B so that the tufts of bristles extend through openings in the roof structure;
    [0017] Figure 5A is a schematic illustration of an intermediate stage of the proposed manufacturing method in which constricting elements that form a constricting structure are moved between the tufts of bristles;
    [0018] Figure 5B is a schematic illustration of an intermediate stage of the proposed manufacturing method in which the constricting elements are arranged in a desired final position in which the tufts of bristles are constrained in a pre-defined geometry;
    [0019] Figure 5C is a side view of the situation shown in figure 5B;
    [0020] Figure 6A is a schematic illustration of an intermediate step of the proposed manufacturing method in which the constricting structure is moved upwards towards the free ends of the tufts of constricted bristles and a covering structure is moved to a position ensuring the spatial alignment of the openings and free ends of the tufts of constricted bristles;
    [0021] Figure 6B shows a schematic illustration of an intermediate step of the proposed manufacturing method in which the covering structure is moved in the direction of the bristle support;
    [0022] Figure 6C is a schematic illustration of an intermediate stage of the proposed manufacturing method in which the constricted bristle tufts extend into the openings and the constricting structure is moved simultaneously with the covering layer;
    [0023] Figure 6D is a schematic illustration of an intermediate step of the proposed manufacturing method in which the tufts of bristles extend completely through the openings, and the bristle support and the covering structure are mounted together; and
    [0024] Figure 7 is an illustration of an exemplary toothbrush that has a brush head as proposed. DETAILED DESCRIPTION OF THE INVENTION
    [0025] Figure 1 shows an example brush head 10 as proposed, which is obtained here as a replaceable brush head designed for use with an electric toothbrush handle 2, as shown in figure 7. The brush 10 has a tubular neck section 90 and a head section 20. The head section 20 comprises a cover structure 100 with openings 110 which are elongated in a direction perpendicular to the longitudinal extension direction of the brush head 10. In this embodiment For example, two tufts of bristles 220 extend through each of the openings 110, respectively. As will be explained in more detail with reference to figure 2, the tufts of bristles 220 are mounted on a bristle support, which in the example shown is arranged for a driven movement, in particular, an oscillating rotary movement around an axis that it is essentially parallel to the axis of the longitudinal extension of the brush head 10. Additional cleaning elements 120, which are obtained here as tufts of additional bristles, are mounted on the cover structure 100 so that the general field of tufts of bristles comprises rows of tufts of bristles arranged alternately mounted on the cover structure 100 and on the bristle support. In addition, the brush head 10, as shown, has a front part 300 on which additional cleaning elements 320 are mounted. Instead of being obtained as tufts of bristles, at least some of the cleaning elements 120, 220 or 320 mounted on the cover structure 100, on the bristle support or on the front part 300, they could also be obtained, for example, elastomeric vanes or the like.
    [0026] Figure 2 is a cross section cut through the head section 20 of the brush head 10 shown in figure 1. For the present invention, it can be noted that a bristle holder 200 is disposed under the cover structure 100 The bristle holder 200 extends from a first end of the head section 20, which is proximal to the tubular neck section 90, to a second end that forms the front part 300 of the brush head. The bristle holder 200 is mounted by means of mounting pins 230, 231 next to the cover structure 100 so that the bristle holder 200 can be driven in an oscillatory rotation around the axis defined by the mounting pins 230 and 231. The tufts of bristles 220, which are mounted on the bristle support 200, extend through openings 110 provided in the cover structure 100. As will be explained further with reference to figures 3A and 4, the width of the opening 110 in the direction of extension length of the brush head opening is only slightly greater than the width of the bristle tuft 220, for example, the width of the bristle tuft near the mounting surface in the longitudinal extension direction of the opening can be on the order of about 0, 5 mm to about 4 mm and the respective opening width can then be only about 0.1 mm larger. The width of the opening 110 in the direction of lateral extension of the opening perpendicular to the direction of longitudinal extension of the opening is greater than the width of the two tufts of bristles 220 arranged in a row to allow the cleaning movement of the tufts of bristles 220 mounted on the support of bristles 200. Additional cleaning elements 120 are mounted on the cover structure 100. The longitudinal extension direction of the opening and the lateral extension direction of the opening are two spatial extension directions of the opening and, in general, the opening has at least a first direction of spatial extension in which the opening is less than the width of the respective tuft of bristles extending through the opening at its free end, in particular, the width of the free end of the tuft of bristles in a condition in which it it is mounted on the bristle holder 200, but does not extend through the opening. In the modalities below, it will be explained how the tuft of bristles 220 can be slid into the opening, effectively avoiding the risk of bending, breaking, etc., of any bristle of the tuft of bristles.
    [0027] Figure 3A is a schematic illustration of a bristle holder 200 that has a mounting surface 201 on which tufts of bristles 220 (here: three tufts of bristles 220) are mounted (the technology for mounting bristle tufts) it is common knowledge in the art, for example, tuft holes can be provided in the bristle holder in which bundles of bristles are assembled using stapling technology; other technologies such as mold technology or AFT - free tuft formation anchor - can also be used). Each tuft of bristles 220 comprises a plurality of bristles 221 (a bristle 221 can be a filament made from polyamide, for example, nylon-6.6, and can have a diameter in the range of about 100 micrometers to about 200 micrometers) . The tufts of bristles 220 are separated by gaps 225, where, due to the angled extension of the bristles 221, the gaps 225 between the tufts of bristles 220 narrow towards the free ends of the tufts of bristles 220 or may even disappear as that the bristles 221 of different tufts blend at the free ends. In general, the proposed manufacturing method does not require multiple tufts of bristles to be mounted on a bristle holder and, therefore, there may be only a single tuft of bristles mounted on the bristle holder, or there may be two tufts of bristles or there may be three, four, five, etc., tufts of bristles mounted on the bristle holder. Tufts of bristles can be assembled somewhat randomly, or they can be assembled on a regular basis, for example, in a row or in several rows (for example, a bristle holder can have two rows of tufts of bristles, being that each row comprises two tufts of bristles). Figure 3A indicates that the width W1 of a tuft of bristles 220 in a given direction of spatial extension at the level of the mounting surface 201 is smaller than the width W2 of the same tuft of bristles 220 at its upper free end, given that the tufts of bristles 220, in general, show enlargement towards the free ends of the bristles 221, caused by the fact that the bristles 221 do not extend parallel to each other, but at a certain angle (similar to a bunch of cut flowers).
    [0028] Figure 3B is a top view of the bristle support 200, shown schematically shown in figure 3A. Each tuft of bristles 220 mounted on the bristle holder 200 comprises a plurality of bristles 221. The tufts are separated by gaps 225. The figure indicates that in each tuft of bristles 220 - although they may have the same number of bristles 221 - the pattern of bristles bristles (bristle position) can be (slightly) different, and in addition, the density of bristles 221 in a tuft of bristles 220 is less than the highest possible cluster density (and the density can vary from one tuft of bristles to another ). The highest possible density of grouping of rolls of the same diameter is 91%, while the grouping density of bristles in a tuft of bristles (at the level of the mounting surface) can be in the range of about 50% to about 80% and in particular, it may be about 60% or about 70%. For the sake of clarity, in figure 3B the fact that the bristles extend at different angles to each other rather than parallel to each other is essentially ignored.
    [0029] Figure 4 is a schematic illustration of a cover structure 100 having openings 110. In the embodiment shown, cover structure 100 has three openings 110 coinciding with the number of bristle tufts of the bristle holder shown in figures 3A and 3B. As mentioned in relation to the number of bristle tufts mounted on the bristle holder 200 above, it is also sufficient - without loss of generality, that is, without loss of the general concept underlying the proposed manufacturing method - that the roof structure has a single opening, but the cover structure can also have more than one opening, it can have two, three, four, five, etc., openings. The openings can be arranged randomly or in a regular pattern, but as it is intended in the present invention that the tufts of bristles mounted on a bristle support extend through the openings in a mounted condition of the brush head, the respective tufts of bristles and the openings are arranged in a spatially coincident manner. This does not necessarily require that the number of openings be identical to the number of tufts of bristles, since two or more tufts of bristles can finally extend through a single opening (an example has been discussed with reference to figure 1). The present description does not exclude, however, that there may be other openings, through which other cleaning elements may extend in the assembled condition of the brush head. In addition, the present description does not exclude that one or more additional cleaning elements, in particular tufts of bristles, are mounted on the bristle support, which ultimately will not extend through any of the openings. The width of an opening 110 in a first spatial extension direction of the opening is W3 (here: the longitudinal extension direction of the opening) and the width of the opening in a second spatial extension direction of the opening is W4 (here: the direction of lateral opening of the opening). If the width W3 is approximately equal to or only slightly greater than the corresponding width W1 of a bristle tuft 220 (as shown in figure 3A), and also less than the width W2 of the bristle tuft at its free end, then it is obvious that the cover structure 100 cannot simply be slid over the tufts of bristles 220 until the tufts of bristles 220 extend through the openings 110, since one or more bristles 221 of the tufts of bristles 220 that extend for the area beyond the W3 width of the opening 110 they can be flexed and end up being damaged or broken, so that a single or several bristles 221 may finally not extend through the opening 110, but can, in particular, be trapped between the structure cover and the bristle holder. Each opening 110 has a cross-sectional area F, which in the mode shown is identical for the three openings 110. In general, each opening can have a different cross-sectional area F (in particular, the widths W3 and W4 can be different between the openings, but also the geometry of the areas in cross section can vary in many respects, for example, the shape of the areas in cross section may not be essentially rectangular as shown here, but it can be triangular, circular, oval or it can be irregular) . Similarly, tufts of bristles may have different cross-sectional shapes.
    [0030] A proposed manufacturing method for a brush head will now be discussed with reference to figures 5A to 5C and figures 6A to 6D which effectively prevents flexing, damage, breakage or entrapment of the bristles.
    [0031] Figure 5A is a schematic illustration of a first stage of the proposed manufacturing method. A bristle holder 200 is provided, as shown in figure 3B, on which three tufts of bristles 220 exemplifiers are mounted. The bristle holder 200 can, in particular, be maintained by a machine in a precise location. A constrictor structure 400 is provided which here comprises two constricting elements 401 and 402 which are each arranged as comb-like constricting elements having teeth 411 and 412, respectively. In this stage of the manufacturing method, the first comb-like constricting element 401 is moved relatively in the direction of the bristle holder 200 in the direction indicated by arrow A1 and the second comb-like constricting element 402 is moved relatively in the direction of the bristle support bristles 200 along the direction indicated by arrow A2. It should be noted in general that the movements between two objects described in this application can be implemented by moving only one of the objects or both objects; for example, here the first comb-like constricting element 401 could be moved while the bristle holder 200 is kept stationary, the bristle support 200 can be moved while the first comb-like constricting element 401 is kept stationary, or the bristle holder 200 and the first comb-like constricting element 401 can both be moved, for example, simultaneously or successively. For the present invention, the first comb-like constricting element 401 can be moved in an A1 direction first and then the second comb-like constricting element 402 can be moved in the A2 direction, or both of the constricting elements 401, 402 can be moved simultaneously. When the comb-like constricting elements 401, 402 are moved, teeth 411 and 412 move between tufts of bristles 220 (that is, teeth 411, 412 move into the gaps 225 shown in figures 3A and 3B ), thus separating the bristles from the respective tufts of bristles into bundles that are associated with an individual tuft of bristles. Teeth 411 and 412 are here tapered towards their free ends and teeth 411 and 412 may, in particular, have rounded edges in order to effectively prevent damage to the bristles. Due to the tapering of teeth 411 and 412, the bristles of the tufts of bristles 220 are initially separated and then constricted in a higher density of cluster of bristles, as will be clear from figure 5B.
    [0032] Figure 5B is the same top view as figure 5A, but with the two constricting elements 401 and 402 of the constricting structure 400 arranged in a final constricting position. In this final constricting position, the other spans between the 401 and 402 comb-like constricting elements define the cross-sectional area G of the constricted bristle tufts 220A, where in the modality shown the cross-sectional area G is essentially rectangular and identical for the three tufts of constricted 220A bristles. Although the exemplary modality shown has three areas in cross-section G of identical shapes, again it must not be excluded that each of the areas in cross-section may have a different shape and / or size, where, in particular, the shape may vary in relation to to the shape of the bristle tuft itself. It must be understood that the spatial positions and the individual cross-sectional areas G are chosen so that, on the one hand, they coincide with the spatial position of the openings and, on the other hand, they fit within the areas in cross-section F of the openings , respectively. Although the density of cluster bristles in the unrestricted bristle tuft can be, for example, 70%, as explained above, the density of cluster bristles in the constricted bristle tuft can be greater, for example, 85%. The constriction of the bristle tufts can increase the bristle cluster density by an absolute value of the bristle cluster density of, for example, 5%, 10%, 15%, 20%, 25%, 30%, or 35% (ie if an original bristle cluster density of 70% is increased by 5%, the bristle cluster density in the constricted bristle tuft will be 75%), where, obviously, a bristle cluster density of about 91% defines the upper limit (where this theoretical value is, of course, only valid for perfect rolls of the same diameter, and the actual upper limit of the bristle cluster density depends particularly on the geometry of the cross section of the individual bristles in a tuft of bristles). The geometry of the cross section of the tufts of constricted bristles 220A can, in particular, be chosen so that the bristles are not damaged or deformed by the constriction process and, therefore, a bristle cluster density of 75%, 76%, 77 %, 78%, 79%, 80%, 81%, 82%, 83%, 84%, 86%, 87%, 88%, 89% or 90% can be chosen as the upper limit for the cluster density of bristles to be achieved when it is assumed that the bristles can be approximately ideal rolls.
    [0033] In a case where a two-dimensional separation of tufts of bristles is required, an additional second constricting structure can be provided which can also comprise two constricting elements and can, for example, be moved along an angled direction in the direction that the the first constrictor structure is moved (in particular: this angled direction can be essentially perpendicular to the direction in which the first constrictor structure is moved), in order to finally result in a two-dimensional pattern of tufts of constricted bristles. In such a modality, the first and second constricting structures that can be considered as subconstricting structures together form the constricting structure according to the proposed manufacturing method.
    [0034] Figure 5C is a side view of the situation shown schematically in figure 5B. In particular, it can be seen that the teeth of the constricting elements of the constricting structure 400 have been moved between the tufts of bristles in the region close to the mounting surface 201 of the bristle support 200. The separation between the tufts of bristles is ideal at the surface level of assembly, where the tufts of bristles are essentially constrained, for example, by the size and geometry of their tuft orifices in case the tufts of bristles are assembled with the use of stapling technology (tuft formation by anchoring) . The tufts of bristles widen towards their free ends, as explained earlier. Therefore, it may not be reliable to slide the constricting elements a certain distance to a mounting surface 201 (for example, closer to the free ends of the bristle tufts than to the mounting surface), since the individual projecting bristles from neighboring bristle tufts, they can be confined together with the bristles of the respective constricted bristle tuft. In a scenario where there is sufficient distance between the tufts so that the bristles of the individual tuft bristles do not mix with each other, there may not be a specific need to move the constricting elements to a location close to the mounting surface.
    [0035] It should be noted that other geometries of the constricting elements of the constricting structure are also possible. For example, in an additional embodiment, the first constricting element can be a comb-like constricting element as shown in figures 5A and 5B, while the second constricting element can be obtained as a counterplate that has recesses or holes in which the tips of the teeth can extend in the final position, as shown in figure 5B.
    [0036] In figure 6A an intermediate step of the proposed manufacturing method is shown schematically in which the cover structure 100 is already disposed close to the bristle support 200, where the openings 110 are already in spatial alignment with the position of the free ends of the constricted bristle tufts 220A. Contrary to the situation shown in figure 5C, the constricting structure 400 is moved away from the mounting surface 201 of the bristle holder 200 towards the free ends of the tufts of constricted bristles 220A, as indicated by the arrow C1, so that the tufts of bristles constricts 220A are forced into the constricted geometry at their free ends and any unwanted widening of the bristle tufts towards their free ends is essentially avoided.
    [0037] Figure 6B shows the next stage of the proposed manufacturing method, in which the cover structure 100 is moved in the direction of the free ends of the constricted bristle tufts 220A in a C2 direction. As the openings 110 and the free ends of the tufts of constricted bristles 220A were already in spatial alignment and how the free ends of the tufts of constricted bristles 220A are each individually confined in a G geometry (as explained with reference to figure 5B ) that fits within the geometry F (as shown in figure 4) of the respective opening 110 through which the respective tuft of bristles will finally extend, the free ends of the constricted tufts of bristles 220A will slide easily into the openings 110 without flexing or breakage of any individual bristle.
    [0038] In figure 6C an additional intermediate step of the exemplary modality of the proposed manufacturing method is shown. Although in the intermediate step explained with reference to figure 6B only the top part of the constricted bristle tufts 220A will slide into the openings, figure 6C shows the situation where the constricting structure 400 and the covering structure 100 are both moved in alignment for directions C3 and C2 (coincident), respectively, so that the constricted bristle tufts 220A additionally slide into the openings 110 until they extend completely through the openings 110 and the final spatial relationship between the covering structure 100 is obtained and the bristle holder 200, as shown in figure 6D. In the process of moving the constricting structure 400, the individual constricting elements can first be moved together down to the mounting surface 201 of the bristle holder 200 in the C3 direction and then individually outward (ie, out of the way) until that the constricting elements are moved to a position in which the final spatial relationship of the covering structure 100 and the bristle support 200 as shown in figure 6D can be obtained. Figure 6D further indicates that the bristle holder 200 and the cover structure 100 can be mounted to each other by at least one mounting element 230A and / or 231A, in particular in order to allow relative movement between the structure cover 100 and bristle support 200, as explained previously with reference to the exemplary modality shown in figure 2.
    [0039] The brush head that is finally obtained has the following structural characteristics: a covering structure that has at least one opening and a bristle holder on which is mounted at least one tuft of bristles that extends through the opening, the opening having at least a first spatial extension direction of the opening which is less than the respective width of the bristle tuft at its free end (where the width of the bristle tuft at its free end is particularly measured before the assembly procedure , when the roof structure finally assembled may to some extent also constrict the tuft of bristles as the constrictor structure itself).
    [0040] Figure 7 shows an exemplary toothbrush 1 (here: an electric toothbrush) that has a brush head 10 manufactured according to the proposed manufacturing method, the brush head 20 being arranged in a upper end of a cable 2 (here: the brush head 10 is arranged to be removable).
    [0041] The dimensions and values presented in the present invention should not be understood as being strictly limited to the exact numerical values mentioned. Instead, unless otherwise specified, each of these dimensions is intended to mean both the mentioned value and a range of functionally equivalent values around that value. For example, a dimension displayed as "40 mm" is intended to mean "about 40 mm".
    权利要求:
    Claims (10)
    [0001]
    1. Method of making a brush head, comprising the steps of: providing a bristle holder (200) on which at least one tuft of bristles (220) comprising a plurality of bristles (221) is mounted and a structure cover (100) which has at least one opening (110); constrict the free ends of the plurality of bristles (221) of the tuft of bristles (220) in a geometry in defined cross-section (G) so that it fits within the cross-sectional area (F) of the opening (110); moving the cover structure (100) and the bristle support (200) in relation to each other until the constricted bristle tuft (220A) and the opening (110) are positioned in spatial alignment; and releasing the constriction during the movement of the covering structure (100) to a final position in which the tuft of bristles (220) extends through the opening (110), characterized by the fact that the constriction step comprises moving a structure constrictor (400) relative to the bristle support (200), where the constrictor structure (400) is relatively moved close to the mounting surface (201) of the bristle support (200), and relatively moving the constrictor structure (400) from a first position close to the mounting surface (201) of the bristle holder (200) to a second position close to the free ends of the bristles (221).
    [0002]
    2. Manufacturing method, according to claim 1, characterized by the fact that the constricting structure (400) comprises at least two constricting elements (401, 402), with a constricting element (401) being a constricting element similar to a comb having a plurality of pins (411).
    [0003]
    3. Manufacturing method according to claim 2, characterized by the fact that the teeth (411) of the comb-like constricting element have rounded edges.
    [0004]
    4. Method of manufacture according to any one of claims 1 to 3, characterized by the fact that in the step of releasing the constriction, the constricting structure (400) is moved to a third position distal to the bristle support (200).
    [0005]
    Method of manufacture according to any one of claims 1 to 4, characterized in that it comprises at least two tufts of bristles (220), each having a plurality of bristles (221), are mounted on the support of bristles (200).
    [0006]
    6. Method of manufacture, according to claim 4, characterized by the fact that at least four tufts of bristles (220) are mounted on the bristle support (200) in at least two rows, with each row comprising at least two tufts.
    [0007]
    7. Manufacturing method according to any one of claims 1 to 6, characterized by the fact that the constricting structure (400) has four constricting elements that form two subconstrictor structures, each subconstrictor structure comprising two of the constricting elements, and the two subconstricting structures are angled in relation to each other.
    [0008]
    Manufacturing method according to any one of claims 1 to 7, characterized in that the cover structure (100) has at least two openings (110).
    [0009]
    9. Method of manufacture according to any one of claims 1 to 8, characterized in that the step of constricting the free ends of the bristles (221) of the tuft of bristles (220) includes compressing the tuft of bristles (220) so that the density of bristles in the constricted part of the tuft of bristles is greater than the density of bristles in the tuft of bristles not constricted on the mounting surface (201).
    [0010]
    10. Method of manufacture according to any one of claims 1 to 9, characterized by the fact that in the step of moving the covering structure (100) to the final position, at least two tufts of bristles (220) move towards the interior of the opening (110).
    类似技术:
    公开号 | 公开日 | 专利标题
    BR112013004893B1|2021-02-09|brush head manufacturing method
    CN102245051B|2014-04-30|Toothbrush
    JP6363505B2|2018-07-25|toothbrush
    KR20140029514A|2014-03-10|Cleaning section for an electric oral hygiene device
    ES2682256T3|2018-09-19|Head for an oral care tool
    KR20120081242A|2012-07-18|Toothbrush
    US20060010631A1|2006-01-19|Toothbrush
    BR112014006026B1|2020-10-20|toothbrush
    US10258140B2|2019-04-16|Bristled component for personal-care applicator
    US20150374115A1|2015-12-31|Processes for manufacturing personal-care applicator
    US9586360B2|2017-03-07|Processes for manufacturing personal-care applicator
    JP2017505682A|2017-02-23|Head for oral care device
    US10251469B2|2019-04-09|Personal-care applicator and processes for manufacturing same
    US20150374114A1|2015-12-31|Processes for manufacturing bristled component for personal-care applicator
    JP5178529B2|2013-04-10|toothbrush
    EP3160292A2|2017-05-03|Personal-care applicator and processes for manufacturing the same
    EP3065593B1|2020-07-08|Process and apparatus for creating tufts for tufted article
    CN103732104A|2014-04-16|Bristle for toothbrush, method for manufacturing same, and toothbrush
    JP5492971B1|2014-05-14|brush
    WO2015200774A1|2015-12-30|Bristled component for personal-care applicator
    JP2004000558A|2004-01-08|Toothbrush
    BR112018003946B1|2022-02-08|TUFF SELECTOR FOR A TUFF SELECTION DEVICE OF A BRUSH MANUFACTURING MACHINE
    JP2015196940A|2015-11-09|Linear body sheet, linear body sheet manufacturing device, linear body sheet manufacturing program, linear body manufacturing method, linear body manufacturing device, and linear body manufacturing program
    EP3160295A1|2017-05-03|Personal-care applicator
    JP2020081087A|2020-06-04|Interdental cleaning tool, main body of the same, production method of the same, and metal mold
    同族专利:
    公开号 | 公开日
    WO2012042488A1|2012-04-05|
    CN103140149B|2015-02-25|
    US8608251B2|2013-12-17|
    EP2436283B1|2016-08-24|
    EP2436283A1|2012-04-04|
    CN103140149A|2013-06-05|
    BR112013004893A2|2016-05-03|
    US20120073070A1|2012-03-29|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE269112C|
    DE3511528C1|1985-03-29|1991-01-03|Coronet - Werke Heinrich Schlerf Gmbh, 6948 Wald-Michelbach|Process for the production of bristle goods|
    DE3544256A1|1985-12-14|1987-06-19|Braun Ag|Toothbrush with electric motor drive|
    US5129191A|1988-08-05|1992-07-14|Jason Inc.|Adhesive bonded flexible abrasive finishing tool|
    DE19506597A1|1995-02-27|1996-08-29|Coronet Werke Gmbh|Bristle goods and method and device for their manufacture|
    CN2294034Y|1995-11-01|1998-10-14|毅华工程有限公司|Tooth brush driven by electric motor|
    DE19832595C2|1998-07-09|2001-02-22|Ralf Hoyer|Toothbrush with device for guiding the bristles|
    JP2000060643A|1998-08-26|2000-02-29|Lion Corp|Manufacture of toothbrush|
    GB2348358A|1999-03-30|2000-10-04|Romano Foti|Brush e.g. toothbrush : bristle adjustment|
    EP1110479B1|1999-12-22|2003-07-30|G.B. Boucherie, N.V.|Process for joining bristle bundles for brushes to a carrier made of thermoplastic material|
    JP4778167B2|2001-08-24|2011-09-21|花王株式会社|Brush manufacturing method and apparatus|
    US20030140437A1|2002-01-31|2003-07-31|Eyal Eliav|Powered toothbrush|
    US6892412B2|2002-01-31|2005-05-17|Colgate-Palmolive Company|Powered toothbrush|
    CA2644304C|2003-04-23|2011-06-21|John Geoffrey Chan|Electric toothbrushes|
    DE202004003822U1|2004-03-11|2005-07-14|M + C Schiffer Gmbh|Brush e.g. tooth brush, for use by children, has motor that transmits translatory oscillating motion to plate over connecting rod, such that bristle bundles are oscillated around longitudinal axis|
    DE102004038926B4|2004-08-11|2007-02-01|Nidal Odeh|Toothbrush with variable bristle profile|
    EP1905382A1|2006-09-29|2008-04-02|Trisa Holding AG|Electric toothbrush and transmission for an electric toothbrush|
    US20080104785A1|2006-11-02|2008-05-08|Robinson Dane Q|Bristle assembly for a brush and related method|KR101388967B1|2011-09-23|2014-05-14|이팔형|Toothbrush|
    ES2874477T3|2014-07-11|2021-11-05|Procter & Gamble|Head for an oral care utensil|
    BR112017010947A2|2014-12-23|2018-07-03|Colgate Palmolive Co|oral hygiene instrument|
    EP3223657A1|2014-12-23|2017-10-04|Colgate-Palmolive Company|Oral care implement|
    USD780457S1|2014-12-23|2017-03-07|Colgate-Palmolive Company|Oral care implement|
    EP3223652B1|2014-12-23|2021-07-21|Colgate-Palmolive Company|Oral care implement having multi-component handle|
    BR112017012630A2|2014-12-23|2018-04-24|Colgate-Palmolive Company|oral hygiene instrument with multi-component handle|
    MX2017007858A|2014-12-23|2017-09-19|Colgate Palmolive Co|Oral care implement.|
    US10455931B2|2014-12-23|2019-10-29|Colgate-Palmolive Company|Oral care implement|
    CN106998896B|2014-12-23|2019-11-05|高露洁-棕榄公司|Oral care implement|
    EP3574799B1|2014-12-23|2021-03-17|Colgate-Palmolive Company|Oral care implement|
    CA2970624A1|2014-12-23|2016-06-30|Colgate-Palmolive Company|Oral care implement|
    BR112017010357A2|2014-12-23|2018-07-03|Colgate Palmolive Co|oral hygiene instrument with multi-component handle|
    US10750849B2|2015-04-03|2020-08-25|Water Pik, Inc.|Skin cleansing and massaging system|
    USD828694S1|2016-04-04|2018-09-18|Water Pik, Inc.|Handheld skin exfoliator|
    US10278485B2|2016-09-01|2019-05-07|Colgate-Palmolive Company|Oral care implement and filament therefor|
    USD831358S1|2016-12-13|2018-10-23|Braun Gmbh|Toothbrush head|
    CN106618777A|2017-02-22|2017-05-10|卢纪元|Visual intelligent tooth brushing system and intelligent toothbrush using visible intelligent tooth brushing system|
    USD904039S1|2017-11-13|2020-12-08|Water Pik, Inc.|Shower accessory hanger|
    USD861830S1|2017-11-13|2019-10-01|Water Pik, Inc.|Handheld cleansing device|
    USD854654S1|2017-11-13|2019-07-23|Water Pik, Inc.|Bracket for a handheld cleansing device|
    USD898374S1|2018-07-02|2020-10-13|Water Pik, Inc.|Skin cleansing brush|
    法律状态:
    2018-12-26| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-09-10| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2020-07-14| B07A| Technical examination (opinion): publication of technical examination (opinion) [chapter 7.1 patent gazette]|
    2020-12-08| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-02-09| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 28/09/2011, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    GB10011394.3|2010-09-29|
    EP10011394.3A|EP2436283B1|2010-09-29|2010-09-29|Brush head manufacturing method|
    PCT/IB2011/054276|WO2012042488A1|2010-09-29|2011-09-28|Brush head manufacturing method|
    [返回顶部]