brush

Abstract

A brush is described that includes a body, a carrier, a plurality of bristles, and a frame. Each bristle is secured to the carrier and extends through a respective hole in the frame. The carrier deforms in response to pivoting of each bristle and is held between the body and the frame at each bristle.

Description

Technical Field

[0001] This invention relates to brushes, particularly hairbrushes, but not limited to hairbrushes. Background Technology

[0002] Hairbrushes may include bristles attached to a flexible pad. During use, the pad bends, allowing the bristles to better conform to the shape of the user's head, thus improving comfort. However, hairbrushes are generally poor at removing tangles from hair. Specifically, when bristles encounter a tangle, adjacent bristles tend to bunch up at the tangle, making it difficult to remove the tangle. Summary of the Invention

[0003] The present invention provides a brush comprising a body, a carrier, a plurality of bristles and a frame, each bristle being fastened to the carrier and extending through a corresponding hole in the frame, the carrier deforming in response to pivoting of each bristle, and the carrier being held between the body and the frame at each bristle.

[0004] In the brush of this invention, the carrier is held between the frame and the body at each bristle. That is, the carrier is held at one or more points around each bristle. Therefore, when a particular bristle pivots and the carrier around that bristle deforms, adjacent bristles are better isolated from the deformation. Thus, each bristle can move independently of the others; that is, each bristle can move without causing the others to move. This has the advantage that when the brush is used on hair and the bristles encounter tangles, the bristles can pivot to allow the tangles to pass through without adjacent bristles accumulating at the tangles. In contrast, with conventional hairbrushes, when bristles encounter tangles, the movement of the bristles causes the pad to bend, which in turn causes adjacent bristles to accumulate at the tangles. Therefore, tangles are more difficult to pass through the bristles.

[0005] The carrier can protrude beyond each hole in the frame. Therefore, a greater range of motion is achieved for each bristle. Specifically, by making the carrier protrude beyond each hole, the pivot point of each bristle is increased, and the carrier can be deformed more easily.

[0006] Friction between the brush carrier and the hair can generate static electricity within the hair. Additionally, if the carrier protrudes excessively into the hair, it can clamp or trap hair between adjacent protrusions. Therefore, the carrier can protrude no more than 5 mm beyond each hole in the frame. More specifically, the carrier can protrude no more than 1 mm beyond each hole in the frame. This provides the advantage of allowing for a larger range of motion for the bristles without excessively protruding into the user's hair.

[0007] The brush may include a cavity located beneath each bristle. For example, the body may include multiple cavities, and the carrier may be held between the body and the frame such that each bristle is positioned above a corresponding cavity in the body. This has the advantage that the base of the bristle can freely move into the cavity as the tip of each bristle moves. In contrast, if no cavities are provided, the base of the bristle will be lifted to one side when the bristles pivot. Therefore, the carrier will protrude further into the user's hair, which may be undesirable due to friction.

[0008] The carrier can be held between the frame and the body around each bristle. Therefore, when a particular bristle pivots, the deformation of adjacent bristles and the carrier is completely isolated.

[0009] The frame can be shaped like a hyperbolic paraboloid. Therefore, when using bristles of the same length, the bristles form a base with an upper contour resembling a hyperbolic paraboloid. This bristle base can be concave in the direction perpendicular to the brushing direction and convex in the direction parallel to the brushing direction. Due to the concave shape, the bristles better conform to the shape of the user's head, thus improving comfort. When the brush is pulled down through the hair, the user will tend to roll the brush. The convex shape in the direction parallel to the brushing direction promotes deeper penetration of the hair into the bristles, which is useful when the user desires higher tension in the hair.

[0010] Brush bristles extend upwards in a direction parallel to each other. Therefore, bristles are better able to handle tangles. Conventional brushes often have spread bristles, meaning the bristles are spread out. Therefore, when bristles at the front of the brush encounter a tangle, the bristles must move or bend through a larger angle to allow the tangle to pass. This makes brushing through tangles more difficult. Furthermore, bristles at the back of the brush do not penetrate deeply into the hair. In contrast, with bristles that all extend in the same direction, the bristles at the front of the brush move through a smaller angle when encountering a tangle, making brushing easier. Additionally, bristles at the back of the brush can penetrate deeper into the hair.

[0011] The carrier can be formed from an elastomer. More specifically, the carrier can be formed from silicone rubber. Silicone rubber has the advantage of being relatively inert and therefore unlikely to cause any adverse reaction to the user's scalp. In addition, silicone rubber has high thermal stability and good chemical resistance. Therefore, the carrier is ideal for use in hairbrushes that can withstand chemicals in the form of hair products and / or high temperatures during hair drying.

[0012] The carrier can be made of a material with a Shore A hardness of less than 50. Therefore, the carrier is relatively soft, allowing for a greater range of motion of the bristles.

[0013] The carrier can be molded to the bristles. This has the following advantages: the bristles are better secured to the carrier and are therefore less likely to fall off. In addition, it is less likely for gaps to form between the bristles and the carrier, which could otherwise trap hair and / or accumulate dirt and other debris.

[0014] The carrier can be molded to the frame. Therefore, gaps between the carrier and the frame are avoided, which can also trap hair and / or accumulate dirt and other debris.

[0015] Each bristle may include a root and a shaft extending upward from the root, and the shaft may have a diameter of at least 1.2 mm. The diameter of the shaft may be uniform along its length. A relatively thick shaft has the advantage that the bristles are stiffer and therefore less likely to bend or otherwise deform during use of the brush. The movement of the bristles is then provided by a carrier that deforms in response to the forces acting on the bristles.

[0016] Each bristle may include a pointed tip formed as a spool. The bristles of a conventional brush can be relatively narrow with pointed tips. While bristles of this design can effectively remove tangles, the brush is often uncomfortable if the bristles come into contact with the scalp. To improve comfort, a ball can be provided at the end of the spool of each bristle. However, while this may improve comfort, the ball tends to get stuck on any tangles. By providing bristles with a relatively thick spool and rounded ends, improved comfort can be achieved without any getting stuck. In particular, when the bristles encounter a tangle, the bristles can pivot backward, allowing the tangle to slide off from the end of the bristle.

[0017] Each bristle may include a root and an axis extending upwards from the root. A carrier may surround the root, and the axis may have a length of at least 15 mm. This has the advantage of allowing the bristles to penetrate deeper into the hair. In contrast, a brush with shorter bristles may require several passes over the same area of ​​hair. As mentioned above, the bristles move independently of each other. Therefore, as the bristle length increases, the likelihood of adjacent bristles colliding during use increases. Therefore, the axis may have a length of no more than 22 mm.

[0018] Each bristle can have a flexural modulus of at least 1 GPa and / or a flexural stiffness of at least 500 N / m. Therefore, the bristles are less likely to bend or otherwise deform during the brush's use. Furthermore, due to their relative rigidity, the bristles are more likely to pivot at their root, which better facilitates the slippage of tangles from the bristles. In contrast, the bristles of a conventional brush can have a lower flexural modulus and stiffness. During use, the bristles do not pivot but rather bend or buckle. However, the bristles are more likely to be damaged due to bending beyond their elastic limit or fatigue caused by repeated bending. Furthermore, tangles trapped deep within the bristles are more likely to become stuck.

[0019] Brush bristles can be made of metals such as stainless steel or aluminum. Therefore, the bristles are relatively strong, tough, and hard, and are unlikely to be damaged during use or if the brush is accidentally dropped.

[0020] The bristles can be arranged in rows, and the bristles in each row can be staggered relative to the bristles in adjacent rows. Furthermore, the bristles can have a pitch between 5mm and 8mm perpendicular to the brushing direction, and a pitch between 10mm and 16mm parallel to the brushing direction. A smaller pitch perpendicular to the brushing direction allows for better alignment of the hair. Additionally, less brushing is typically required to detangle the hair. On the other hand, a larger pitch parallel to the brushing direction allows for a greater range of bristle movement without bristle collision.

[0021] The present invention also provides a brush comprising a carrier, a plurality of bristles, and a frame, wherein the carrier is molded to the bristles and the frame, each bristle extends through a corresponding hole in the frame, and the carrier deforms in response to pivoting of each bristle. Attached Figure Description

[0022] Embodiments will now be described by way of example with reference to the accompanying drawings, in which:

[0023] Figure 1 A brush according to the first embodiment is shown;

[0024] Figure 2 It's an exploded view of the brush;

[0025] Figure 3 It is a plan view of the brush;

[0026] Figure 4 It is along Figure 3 The cross-sectional view of the brush taken by line AA.

[0027] Figure 5 Showing the bristles that form part of the brush; and

[0028] Figure 6 This is a cross-sectional view of the brush according to the second embodiment. Detailed Implementation

[0029] Figures 1 to 5 The brush 1 includes a handle 2 to which the brush head 3 is attached. The brush head 3 includes a body 4, a carrier 5, multiple bristles 6, and a frame 7.

[0030] The body 4 is formed of a rigid material (such as thermoplastic) and includes a plurality of cylindrical cavities 10 formed in the upper surface of the body 4.

[0031] The carrier 5 is formed of silicone rubber with a Shore A hardness of about 20 to 30.

[0032] Each of the bristles 6 includes a root 20, a tip 21, and a shaft 22 extending from the root 20 to the tip 21. The root 20 includes a base 25, a rod 26 extending upward from the base 25, and a through-hole 27 formed in the rod 26. The base 25 extends radially outward beyond the rod 26, and the rod 26 extends radially outward beyond the shaft 22. The shaft 22 of each bristle has a length of 17 mm and a diameter of 1.7 mm. Furthermore, each bristle 6 is formed of stainless steel. Therefore, each bristle 6 is relatively rigid and has a flexural modulus of approximately 193 GPa and a flexural stiffness of approximately 48 kN / m. The flexural stiffness (also known as bending stiffness or buckling stiffness) is measured as the cantilever deflection of the tip 21 of the bristle 6 when fixed at the root 20.

[0033] Each bristle 6 is attached to a carrier 5. More specifically, the carrier 5 is molded to the root 20 of each bristle 6 such that the shaft 22 extends protrudingly from the carrier 5.

[0034] The frame 7 is formed of a rigid material (such as thermoplastic) and includes a plurality of holes 11. The frame has a hyperbolic paraboloid shape. More specifically, the frame 7 is concave along the length of the brush head 3 (i.e., perpendicular to the brushing direction) and convex along the width of the brush head 3 (i.e., parallel to the brushing direction). The frame 7 is fastened to the body 4 at one or more points around the outer periphery of the frame 7 (e.g., by snap-fit, adhesive, or ultrasonic welding).

[0035] The carrier 5 is held between the body 4 and the frame 7, wherein each bristle 6 extends through a corresponding hole 11 in the frame 7. The carrier 5 is held between the body 4 and the frame 7 such that each bristle 6 is positioned above a cavity 10 in the body 4. Furthermore, the carrier 5 is held between the body 4 and the frame 7 around each bristle 6.

[0036] In response to the pivoting of the bristles 6, the carrier 5 at the root 20 of the bristles 6 deforms. Since the carrier 5 remains between the body 4 and the frame 7 around each bristle 6, deformation of adjacent bristles 6 is isolated from that of the carrier. That is, deformation of the carrier 5 around the root of one bristle does not cause deformation or other movement of the carrier 5 around the roots of adjacent bristles. Each bristle 6 thus behaves as if fastened to a single elastomeric bead. Specifically, each bristle 6 can pivot independently of all other bristles.

[0037] The carrier 5 protrudes upward beyond each hole 11 in the frame 7. More specifically, the carrier 5 can be considered as comprising multiple dome-shaped protrusions, each protruding beyond a corresponding hole 11 in the frame 7. By making the carrier 5 protrude beyond each hole 11, the pivot point of each bristle 6 is raised upward. Furthermore, deformation of the carrier 5 becomes easier. Therefore, a greater range of motion is achieved for each bristle 6.

[0038] The bristles 6 extend upwards from the carrier 5 and the frame 7 in directions parallel to each other. Therefore, the bristles 6 neither diverge nor converge. Most of the bristles 6, especially those forming the central area, are arranged in rows along the length of the brush head 3, with the bristles 6 in each row staggered relative to the bristles 6 in the adjacent rows. The bristles 6 have a pitch C1 of 6.5 mm along the length of the brush head (i.e., perpendicular to the brushing direction) and a pitch C2 of 13 mm along the width of the brush head (i.e., parallel to the brushing direction).

[0039] During the use of brush 1, bristles 6 penetrate the user's hair. As brush 1 is pulled downwards through the hair, brush 6 pivots slightly backwards. Bristles 6 are relatively rigid, and any movement of bristles 6 occurs via deformation of the carrier 5. When bristles 6 encounter tangles in the hair, they pivot further backwards as brush 1 continues to be pulled downwards. Thus, the force applied to the tangles by bristles 6 increases. If the tangles are particularly difficult to separate and the force applied by bristles 6 is insufficient, then bristles 6 will eventually pivot to the point where the tangles slip past bristles 6. As a result, brush 1 can be pulled through the hair without causing significant discomfort to the user. Brush 1 can then be used to subsequently pass through the hair, separating more tangles with each pass. Importantly, with each pass of brush 1, bristles 6 continue to pivot backwards, allowing tangles to pass through if the force becomes too great. Thus, discomfort caused by the bristles pulling through tangles is avoided.

[0040] Each bristle 6 pivots independently of the others. This has the advantage that when a bristle encounters a tangle, it can pivot to allow the tangle to pass through without adjacent bristles piling up at the tangle. In contrast, in the case of a conventional hairbrush, when a bristle encounters a tangle and pivots backward, the movement of the bristle causes the pad to bend, which in turn causes adjacent bristles to piling up at the tangle. Therefore, tangles are much harder to pass through the bristles.

[0041] The frame 7 is in the shape of a hyperbolic paraboloid. Bristles 6 of equal length form a base with an upper contour, the shape of which resembles a hyperbolic paraboloid. The bristle base is concave along the length of the brush head, i.e., in the direction perpendicular to the brushing direction, and convex along the width of the brush head, i.e., in the direction parallel to the brushing direction. Due to the concave shape, the bristles 6 better conform to the shape of the user's head, thus improving comfort. When the brush 1 is pulled down through the hair, the user will tend to roll their wrist and thus the brush 1. The convex shape in the direction parallel to the brushing direction promotes deeper penetration of the hair into the bristles 6, which is useful when the user desires higher tension in the hair.

[0042] Most bristles 6 have pitches C1 and C2 of 6.5 mm and 13.0 mm, respectively. Therefore, bristles 6 have a smaller pitch perpendicular to the brushing direction. This allows for better hair alignment; that is, the bristles capture and straighten more hairline. In contrast, if a larger pitch were used, more hair would pass between the bristles and remain in its original tangled orientation. The smaller pitch perpendicular to the brushing direction has the additional advantage that fewer passes are typically required to untangle the hair due to the higher bristle count. On the other hand, a larger pitch parallel to the brushing direction allows for a greater range of bristle movement without bristle collisions. If a smaller pitch were used, when a particular bristle encounters a tangle and pivots backward, it may collide with its adjacent bristle directly behind it. The adjacent bristle then prevents the tangle from sliding past the bristle. Of course, alternative pitches for bristles 6 are possible. However, it has been found that staggered bristles with a vertical pitch C1 between 5 mm and 8 mm and a parallel pitch C2 between 10 mm and 16 mm provide a good balance between the desire for a high bristle count to improve brushing efficiency and the desire to avoid bristle collisions for improved comfort.

[0043] The bristles 6 extend upwards in a direction parallel to each other. Therefore, the bristles 6 are better able to resolve tangles and penetrate the hair. Conventional brushes typically have spread bristles. Therefore, when bristles on the front of the brush encounter a tangle, the bristles must pivot or bend through a larger angle to allow the tangle to pass. This makes brushing through the tangle more difficult. Furthermore, the bristles on the back of the brush do not penetrate deeply into the hair. In contrast, with bristles 6 extending in the same direction (i.e., bristles that neither spread nor converge), the bristles 6 at the front of the brush 1 move through a smaller angle when encountering a tangle, while the bristles 6 on the back of the brush 1 are able to penetrate deeper into the hair.

[0044] Each bristle 6 has a flexural modulus of approximately 193 GPa and a flexural stiffness of approximately 48 kN / m. Therefore, bristles 6 are unlikely to bend or otherwise deform during use of the brush 1. Furthermore, due to their relative rigidity, bristles 6 are more likely to pivot at their root, which better facilitates the slippage of tangles from the bristles. In contrast, bristles of conventional brushes may have lower flexural stiffness. During use, the bristles do not pivot but rather bend or buckle. However, such bristles are more likely to be damaged due to bending beyond their elastic limit or fatigue caused by repeated bending. Furthermore, tangles trapped deep within the bristles are more likely to become stuck.

[0045] The bristles 6 of brush 1 are made of stainless steel, which further reduces the possibility of damage, especially when the bristles 6 are exposed to chemicals from hair products or to high temperatures during drying. In addition, the surface of the bristles 6 can be polished to reduce friction, which helps to reduce static electricity in the hair.

[0046] Despite the aforementioned advantages, alternative materials and / or bristles with varying flexural modulus and stiffness can still be used. In particular, bristles can be formed from other metals such as aluminum, which continue to provide relatively high flexural modulus and stiffness. Alternatively, bristles can be formed from glass-reinforced nylon, which is relatively similar to human hair in its triboelectric sequence. The aforementioned advantages diminish as the flexural modulus and stiffness of the bristles decrease. Therefore, bristles can have a flexural modulus of at least 1 GPa and / or a flexural stiffness of at least 500 N / m.

[0047] The diameter of the shaft 22 of each bristle 6 is 1.7 mm. Furthermore, the diameter of each bristle 6 is uniform along the length of the shaft 22. This relatively large diameter contributes in part to the relatively high flexural stiffness of the bristles 6. However, the relatively large diameter of the bristles 6 has other advantages. Specifically, the tips 21 of the bristles 6 can be formed as rounded ends of the shaft 22. Conventional brush bristles can be relatively narrow with pointed tips. While this type of bristle can relatively effectively remove tangles, the brush is generally uncomfortable if the bristles come into contact with the scalp. To improve comfort, a ball can be provided at the end of the shaft of each bristle. However, while this may improve comfort, the ball tends to get stuck on any tangles. In contrast, improved comfort can be achieved without any getting stuck by using bristles 6 that include a relatively thick shaft and rounded ends. Bristles with alternative diameters can be used; the bristles can be uniform or tapered. However, relative comfort can be achieved by using bristles with a shaft diameter of at least 1.2 mm at the tip, without the need for balls or other features that could get stuck in the hair.

[0048] Each bristle 6 has a shaft 22 with a length of 17 mm. Therefore, the bristles 6 can penetrate the hair well, and thus the brush 1 needs to pass through the hair fewer times. Alternatively, bristles 6 with an alternative shaft length can be used. However, when the length of the shaft 22 decreases, the penetration of the bristles 6 into the hair decreases. Therefore, the shaft 22 of each bristle 6 can have a length of at least 15 mm. As the length of the shaft 22 increases, the possibility of collision between adjacent bristles during use increases. Specifically, when a bristle encounters tangling and pivots backward, if the bristle is too long, it may collide with the adjacent bristle directly behind it; this will depend on the pitch of the bristles 6 and the length of the bristles 6. However, for the aforementioned pitch, the shaft of each bristle 6 can have a length of no more than 22 mm.

[0049] The carrier 5 protrudes upward beyond each hole 11 in the frame 7, as described above, which facilitates a greater range of movement of the bristles 6. Figure 4 and Figure 6In the illustrated embodiments, the carrier 5 protrudes beyond the frame 7 by 0.85 mm and 5 mm, respectively. Because it protrudes beyond the frame 7, the carrier 5 will inevitably come into contact with the hair. Friction between the carrier and the hair can generate static electricity. Furthermore, if the carrier 5 protrudes excessively beyond the frame 7, it can pull on the hair, or worse, it can trap or clamp the hair between adjacent protrusions. Therefore, the carrier 5 can protrude beyond each hole 11 in the frame 7 by no more than 5 mm. More specifically, the carrier 5 can protrude beyond each hole 11 in the frame 7 by no more than 1 mm. This has the advantage of providing a greater range of motion for the bristles 6 without undesirably pulling or clamping the hair.

[0050] Carrier 5 is formed of silicone rubber. Silicone rubber is relatively inert and therefore unlikely to cause any adverse reaction to the user's scalp. Furthermore, silicone rubber has high thermal stability and good chemical resistance. Therefore, carrier 5 is well-suited for use in hairbrushes that can withstand chemicals in the form of hair products and / or high temperatures during hair drying. However, silicone rubber is not without its drawbacks. For example, silicone rubber is relatively expensive, and due to its inertness, it may be difficult to bond to the bristles. Therefore, alternative materials, particularly alternative elastomers, can be used for carrier 5.

[0051] The carrier 5 is formed of a relatively soft material with a Shore A hardness of approximately 20 to 30. Therefore, a relatively large range of motion is achieved for the bristles 6. Nevertheless, materials with different Shore A hardnesses can still be used, and a good range of motion can still be achieved using materials with a Shore A hardness of less than 50.

[0052] The brush 1 includes a cavity 10 located beneath each bristle 6. This has the advantage that when each bristle 6 pivots, the root 20 of the bristle 6 can freely move into the cavity 10. In contrast, without a cavity, when the bristle 6 pivots, the root 20 of the bristle 6 would be lifted upwards to one side. The carrier 5 would then protrude further into the hair, which is likely undesirable for the reasons mentioned above.

[0053] The carrier 5 can be molded to the bristles 6. This has the following advantages: the bristles 6 are better secured to the carrier 5 and are therefore less likely to detach from the carrier 5 during use. This is especially true when the carrier 5 is formed of a soft and inert material, such as silicone rubber. Another advantage of molding the carrier 5 to the bristles 6 is that gaps that could trap hair and / or accumulate dirt and other debris are less likely to form between the carrier 5 and the bristles 6. The carrier 5 can also be molded to the frame 7. Therefore, gaps between the carrier 5 and the frame 7, which could similarly trap hair and / or accumulate dirt and other debris, are avoided.

[0054] The carrier 5 is formed of a relatively soft material. Therefore, even when the carrier 5 is molded to the bristles 6, the bristles may fall off if they pivot excessively. The bristles 6 therefore include features that better anchor the bristles 6 to the carrier 5. Each bristle 6 includes a through-hole 27 into which the carrier 5 protrudes. Thus, each bristle 6 is better secured to the carrier 5. In particular, the bristle 6 can only fall off when the portion of the carrier 5 extending through the hole 27 fails. The root 20 of each bristle 6 includes a base 25 extending outward beyond the rod 26. Thus, the base 25 presents a surface (e.g., annular) that resists upward movement of the bristle 6 relative to the carrier 5. Therefore, it is more difficult to pull the bristle 6 out of the carrier 5. The rod 26 includes an undercut and therefore presents a surface that resists downward movement of the bristle 6 relative to the carrier. The diameter of the through-hole 27 is relatively small. Therefore, the portion of the carrier 5 protruding into the through-hole 27 forms a relatively thin line. The through-hole 27 is formed in the undercut of the rod 26. Therefore, the length of the through hole 27, and consequently the length of the line of the carrier 5, is shortened. Consequently, the portion of the carrier 5 extending through the hole 27 is more robust and less likely to fail.

[0055] Although each bristle 6 includes a single through-hole 27, it is conceivable that the bristle 6 may include a pair of orthogonally arranged holes. This would result in better attachment of the bristle 6 to the carrier 7. A single through-hole can affect how the bristle pivots. Specifically, the bristle pivots more easily in the direction perpendicular to the hole and more difficult to pivot in the direction parallel to the hole. In this case, providing two orthogonal holes would result in a more uniform movement of the bristles.

[0056] Although frame 7 is formed of a rigid material, it is relatively thin and has a large opening area. Therefore, frame 7 is relatively flexible. Thus, base 4 is needed to provide structural strength to brush 1. However, if frame 7 were more rigid (e.g., thicker), it is conceivable that base 4 could be omitted. Carrier 5 is then molded or otherwise attached to frame 7. By attaching carrier 5 to frame 7 around each bristle 6, brush 1 retains the aforementioned benefits. In particular, each bristle 6 will continue to pivot independently of the other bristles.

[0057] Figure 6 Showing in many aspects with Figures 1 to 5 The brush 30 is the same as the alternative brush 1. However, the carrier 5 of the brush 30 has a different profile. Specifically, the carrier 5 protrudes further beyond each hole in the frame 7. (The last sentence appears to be incomplete and possibly refers to a different brush design.) Figure 4 Compared to the relatively shallow protrusions seen in the image, the carrier 5 may include multiple tapered protrusions extending upward beyond each hole. These protrusions are similar to the elastomeric nozzles found in some shower heads. Each bristle 6 is then secured at the apex of each protrusion. The carrier 5 remains held between the body 4 and the frame 7, and thus each bristle 6 continues to pivot independently of the others.

[0058] exist Figures 1 to 5 In brush 1, when the bristles 6 pivot, the carrier 5 surrounding the bristles 6 is compressed and stretched. Therefore, a relatively soft material is required to achieve a wide range of movement of the bristles 6. Figure 6 In the case of brush 30, when the bristles 6 pivot, the carrier 5 bends or folds at the protrusion. Therefore, the same range of motion of the bristles 6 can be achieved by using a harder material for the carrier 5.

[0059] The bristle 6 can be compared with the above-mentioned... Figures 1 to 5 The brush is fixed to the carrier 5 in the same manner as described above. Specifically, the carrier 5 may be molded to the bristles 6, and each bristle 6 may include a through-hole 27 into which the carrier 5 protrudes. By using a harder material for the carrier 5, the bristles 6 are less likely to fall off during use. In fact, good fixation of the bristles 6 to the carrier 5 can be achieved without providing through-holes 27 in the bristles 6.

[0060] By using a harder material for the carrier 5, the bristles 6 can be attached to the carrier 5 in an alternative manner. For example, each bristle 6 can be pushed through the carrier 5. This simplifies the manufacture of the brush 30.

[0061] Although specific embodiments have been described so far, it should be understood that various modifications can be made without departing from the scope of the invention as defined by the claims. For example, while the brush described herein is a hairbrush, many features can be used with alternative types of brushes.

Claims

1. A brush comprising a body, a carrier, a plurality of bristles, and a frame, wherein the frame has a plurality of holes, each bristle is fastened to the carrier and extends through a corresponding hole in the frame, the carrier deforms in response to pivoting of each bristle, and the carrier is held at each bristle between the body and the frame. in, The carrier protrudes beyond each hole in the frame.

2. The brush according to claim 1, wherein, The carrier protrudes beyond each hole in the frame by a distance not exceeding 5 mm.

3. The brush according to any one of the preceding claims, wherein, The brush includes a cavity located beneath each bristle.

4. The brush according to any one of the preceding claims, wherein, The carrier is held between the frame and the body around each bristle.

5. The brush according to any one of the preceding claims, wherein, The frame is in the shape of a hyperbolic paraboloid.

6. The brush according to any one of the preceding claims, wherein, The bristles extend parallel to each other.

7. The brush according to any one of the preceding claims, wherein, The carrier is made of silicone rubber.

8. The brush according to any one of the preceding claims, wherein, The carrier is formed of a material with a Shore A hardness of less than 50.

9. The brush according to any one of the preceding claims, wherein, The carrier is molded onto the bristles.

10. The brush according to any one of the preceding claims, wherein, The carrier is molded onto the frame.

11. The brush according to any one of the preceding claims, wherein, Each bristle includes a root and an axis extending upward from the root, and the axis has a diameter of at least 1.2 mm.

12. The brush according to claim 11, wherein, Each bristle includes a tip that forms the rounded end of the shaft.

13. The brush according to any one of the preceding claims, wherein, Each bristle includes a root and an axis extending upward from the root, the carrier surrounding the root, and the axis having a length of at least 15 mm.

14. The brush according to any one of the preceding claims, wherein, Each bristle has a flexural modulus of at least 1 GPa or a flexural stiffness of at least 500 N / m.

15. The brush according to any one of the preceding claims, wherein, The bristles are made of metal.

16. The brush according to any one of the preceding claims, wherein, The bristles are arranged in rows, with the bristles in each row staggered relative to the bristles in the adjacent rows, and the bristles have a pitch between 5 mm and 8 mm perpendicular to the brushing direction and a pitch between 10 mm and 16 mm parallel to the brushing direction.

17. A brush comprising a carrier, a plurality of bristles, and a frame, wherein the frame has a plurality of holes, the carrier is molded to the bristles and the frame, each bristle extending through a corresponding hole in the frame, and the carrier deforming in response to pivoting of each bristle, wherein... The carrier protrudes beyond each hole in the frame.

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