Haircare device

Abstract

A haircare device is described. The haircare device comprises one or more pairs of plates, each pair of plates comprising a respective first plate and second plate which are mutually opposed. A heater is arranged to heat at least one of the first plate and the second plate in each pair of plates. Each pair of plates is arranged to define a respective channel for receiving hair, each pair of plates being independently movable between a first position and a second position, such that a width of the channel is smaller in the second position than in the first position. Each pair of plates comprises a respective biasing member arranged to urge the pair of plates towards the second position.

Description

[0001] 1 P005278-W001

[0002] HAIRCARE DEVICE

[0003] BACKGROUND

[0004] Haircare appliances are known for styling hair. Some haircare appliances (e.g. hair straighteners) include arms, between which hair to be styled can be clamped. In some cases, heat can be used to facilitate shaping of hair clamped between the arms.

[0005] SUMMARY

[0006] In a first aspect of the invention, there is provided a haircare device comprising: one or more pairs of plates, each pair of plates comprising a respective first plate and second plate which are mutually opposed, and a heater arranged to heat at least one of the first plate and the second plate in each pair of plates, wherein each pair of plates is arranged to define a respective channel for receiving hair, each pair of plates being independently movable between a first position and a second position, such that a width of the channel is smaller in the second position than in the first position, and wherein each pair of plates comprises a respective biasing member arranged to urge the pair of plates towards the second position.

[0007] In this manner, hair can be received in the channel of each pair of plates, so that heat can be applied to the hair, e.g. to dry and / or style (e.g. straighten or curl) the hair. Thus, in use, a user’s hair may be received between multiple pairs of plates, which may contribute to more uniform heating of the user’s hair, e.g. in contrast to a conventional hair straightener where a larger portion of hair is received between a single pair of heated plates. In particular, in the device of the invention, each pair of plates may act on a smaller portion of hair, thus improving an efficiency with which the hair is heated. In other words, using multiple pairs of plates can provide a larger contact area between the plates and the user’s hair. This allows the plates to be heated to a lower temperature whilst still providing the desired drying and / or styling effect, which may reduce a risk of damage to the user’s hair.

[0008] Moreover, as each pair of plates is independently movable between the first and second positions, with each pair being biased towards the second position, this may enhance a uniformity with which hair is held between the plates. When a portion of hair is inserted into the channel between a pair of plates, this may move the pair of plates away from the second position and towards the first position, i.e. the width of the channel may increase. This results in the biasing member exerting a force to return the plates to the second 2 P005278-W001 positions, which may act to clamp (or pinch) the portion of hair between the plates. Thus, each pair of plates may receive a respective portion of hair, and exert a clamping force on the respective portion of hair. As each pair of plates is independently movable, the width of each channel may vary in accordance with a size of the portion of hair received in each channel. Accordingly, a clamping force may be exerted on hair portions received between each pair of plates, regardless of differences in size of the various hair portions. The clamping force exerted on hair received in the channel between each pair of plates may promote effective transfer of heat from the plates to the hair. The clamping force may also allow the user to tension their hair, which may facilitate styling of the hair.

[0009] For each pair of plates, the biasing member urges the pair of plates towards the second position. Thus, the pair of plates may automatically return to the second position when hair is removed from the channel. The biasing member may comprise a suitable elastic or resilient portion. The elastic or resilient portion of the biasing member may be configured to provide a restoring force in response to being deformed.

[0010] The biasing member may comprise a spring. For example, the biasing member may be or comprise a helical spring, a leaf spring, a resilient material, or an elastic material.

[0011] The width of the channel for each pair of plates may correspond to a distance between a portion of the first plate and a portion of the second plate. The distance between the portion of the first plate and the portion of the second plate is greater in the first position compared to the second position.

[0012] In some cases, the width of the channel for each pair of plates may be uniform, e.g. along one or more dimensions of the channel. Alternatively, the width of the channel may vary along one or more dimensions of the channel.

[0013] For each pair of plates, the width of the channel may vary in a uniform or non-uniform manner between the first position and the second position.

[0014] In some cases, in the second position, the first plate and the second plate may contact one another. In other words, the second position may correspond to a closed position, where the first plate and the second plate contact one another. Thus, the channel may be closed when the pair of plates is in the second position. This may ensure that even small volumes of hair can be clamped between the pair of plates. 3 P005278-W001

[0015] Each pair of plates may be arranged to move from the second position towards the first position when hair is inserted into the channel between that pair of plates. In other words, the act of inserting hair into the channel may cause the plates to move apart from one another. This may avoid having to use any separate actuation mechanism for opening and closing the channel for each pair, which may simplify use of the device. The biasing member for each pair of plates may be selected so as to allow hair to be inserted into the channel, whilst providing a desired level of clamping force.

[0016] The one or more pairs of plates may comprise a plurality of pairs of plates.

[0017] The haircare device may comprise a body (e.g. housing) from which the one or more plates protrude. The heater may be disposed in the body. The body may comprise (or be connected to) a handle for holding the haircare device. Other features of the device, such as a power source and control electronics may be disposed in the body of the haircare device.

[0018] For each pair of plates, an opening of the channel may be defined between a tip portion of the first plate and a tip portion of the second plate, the opening having a flared shape. The flared shape of the opening may serve to guide (e.g. funnel) hair into the channel, thus facilitating insertion of hair into the channel. In this manner, hair can be drawn into the channel, causing the hair to be clamped between the pair of plates.

[0019] The flared shape can be achieved, for example, by providing the tip portion of the first plate and / or the tip portion of the second plate with a tapered profile. The first and second plates may include mutually opposing portions arranged to contact one another in the second position. However, in the second position, the tip portions of the first and second plates extend away from one another so as to define the flared opening.

[0020] Here, the tip portion of a plate may refer to an end of the plate furthest from the heater and / or a body of the device.

[0021] The opening may be at least partly defined by a first surface of the tip portion of the first plate, the first surface being curved, and / or the opening may be at least partly defined by a second surface of the tip portion of the second plate, the second surface being curved. Using a curved surface on the tip portion of the first place and / or the second plate may avoid any sharp edges or corners at the entrance to the channel. This may facilitate guiding hair into the channel, and avoid hair becoming caught or tangled at the entrance to the channel. 4 P005278-W001

[0022] Alternatively, the surface of the tip portion of the first plate and the surface of the tip portion of second plate could be a flat surfaces which are inclined towards one another to form a funnel shape.

[0023] The haircare device may further comprise a plurality (e.g. two or more) of guide members extending over the one or more of pairs of plates to prevent contact between a user’s scalp and the one or more pairs of plates, the plurality of guide members being arranged to define a plurality of gaps, each gap being aligned with the channel of a respective one of the one or more pairs of plates to thereby guide hair between the respective pair of plates. Accordingly, the guide members may serve the dual functions of protecting the user’s scalp, and guiding hair into the channels between the pairs of plates. In particular, as the guide members extend over the pairs of plates, this may prevent the user’s scalp (or other part of their body) from coming into direct contact with the plates, thus reducing a risk of burning. Moreover, the gaps defined by the plurality of guide members serve to align portions of hair with the channels of the pairs of plates, thus facilitating insertion of hair into the channels.

[0024] The plurality of guide members may be made of a different material compared to the plates. For example, the plurality of guide members may be made of a material having a lower thermal conductivity than the plates, to reduce transfer to the guide members.

[0025] The plurality of guide members may be provided as a single component. For example, the plurality of guide members may be integrally formed as a single component. This may facilitate assembly of the haircare device, and ensure accurate alignment of the plurality of guide members with respect to the one or more pairs of plates. In some examples, the plurality of guide members may be connected to a base portion, which may be connected to the body of the haircare device.

[0026] In some cases, the single component may be removably connectable to a body of the haircare device. In this manner, different sets of guide members (e.g. having different shapes for different types of styling) can be attached to the device. Any suitable means for removably connecting the guide member component to the body may be used. For example, one or more removable fasteners may be used for connecting the guide member component to the body. Additionally, or alternatively, the guide member component may be connected to the body via a snap-fit connection. 5 P005278-W001

[0027] Each of the plurality of gaps defined by the plurality of guide members may flare outwards in a direction away from the channel of the respective pair of plates. This may serve to guide (e.g. funnel) hair between the guide members and into the channels between the pairs of plates. In some examples, the guide members may have tapered profiles, so as to provide the gaps with flared shapes.

[0028] Here, a gap flaring outward in a direction away from a channel may mean that the gap widens in a direction away from the channel.

[0029] The plurality of guide members may be arranged to cover a gap or interface between adjacent ones of the one or more pairs of plates. In this manner, the guide members are arranged to prevent hair from falling into gaps between adjacent pairs of plates. This may facilitate guiding hair into the channels between the pairs of plates, and avoid the hair becoming caught or tangled at the gap or interface between adjacent pairs of plates.

[0030] In some examples, a guide member may cover a gap or interface between the first plate of a first pair, and the second plate of a second, adjacent pair.

[0031] The gap or interface may be between directly adjacent pairs of plates.

[0032] The one or more pairs of plates may be arranged in one or more rows. This may facilitate drawing hair through the channels between the pairs of plates. The one or more rows may extend in a first (e.g. longitudinal) direction of the haircare device, e.g. such that the one or more pairs of plates are aligned with one another in the first direction.

[0033] For each of the one or more pairs of plates, the first plate and / or the second plate may be arranged to tilt in response to insertion of hair into the channel. Tilting of one or both of the plates in response to insertion of the hair may facilitate accommodating hair within the channel, as well as enhance clamping of the hair between the plates. This may also serve to avoid hair falling out of the channel after insertion. For instance, tilting of the first plate and / or the second plate may cause an opening angle of the channel, and / or a dimension of the channel opening, to change. Thus, for example, as hair is inserted into the channel, the first plate and / or the second plate may tilt so that the opening angle of the channel, and / or the dimension of the channel opening, is larger (e.g. relative to a rest position of the plates). This may facilitate insertion of hair into the channel. Additionally, or alternatively, following insertion of the hair into the channel, the first plate and / or the second plate may tilt so that the opening angle of the channel, and / or a dimension of the channel opening, is 6 P005278-W001 smaller (e.g. relative to the rest position of the plates). This may avoid hair falling out of the channel after insertion.

[0034] Here, the opening angle of the channel may refer to an angle between mutually opposing surfaces on the first plate and the second plate. In some examples, the opening angle may be defined between a surface on the tip portion of the first plate and a surface on the tip portion of the second plate. It may be understood, an increase in the opening angle of the channel may correspond to an increase in a gap between the tip portions of the first plate and the second plate, e.g. such that the opening of the channel is wider.

[0035] In some examples, the first plate and / or the second plate may be tiltable (e.g. tiltably mounted or configured to tilt) such that, in a first position, a first surface of the first plate and a second surface of the second plate are at a first angle relative to one another and, in a second position, the first surface and the second surface are at a second angle relative to one another. In some examples, the first and / or second plate at least partially obstruct removal of the hair from the channel in one of the first and or second positions relative to the other of the first and second positions.

[0036] The first plate and the second plate may be tiltable relative to one another. The first plate and / or the second plate may be tiltably mounted in any suitable manner. In some examples, the first plate may be mounted on (e.g. supported by) the biasing member, such that it is tiltable relative to the second plate. The first plate may be supported in the haircare device by the biasing member. Due to the elastic nature of the biasing member, the biasing member may deform to allow the first plate to tilt relative to the second plate.

[0037] For each of the one or more pairs of plates, the biasing member may be connected to the first plate and arranged to urge the first plate towards (e.g. into contact with) the second plate. In this manner, only one plate in the pair need be connected to the biasing member. The biasing member may be connected between the first plate and a fixed member, with the first plate being movable relative to the fixed member. In this manner, the biasing member may deform in response to movement of the first plate relative to the fixed member, to thereby provide a biasing (e.g. restoring) force acting on the first plate. The fixed member may comprise any fixed part of the haircare device, such as a part that is static relative to the heater or body of the haircare device. 7 P005278-W001

[0038] The biasing member may be connected to the first plate on a side opposite an engagement surface of the first plate, the engagement surface of the first plate being arranged to contact the second plate in the second position. The channel may be defined between the engagement surface of the first plate and the second plate. Accordingly, by arranging the biasing member on the side of the first plate opposite the engagement surface, the biasing member is outside the channel. This avoids the biasing member interfering with hair in the channel, thus facilitating inserting hair into, and removing hair from, the channel.

[0039] The biasing member may be connected to the first plate at a position that is spaced apart from an end of the first plate that is closest to the heater. Such an arrangement of the spring may provide for a more uniform clamping force exerted by the first plate on the hair. In some examples, the biasing member may be connected par way (e.g. mid-way) along the height of the plate. This may provide a more uniform compression force on the hair, whilst allowing tilting of the plate when hair is inserted into the channel. In particular, the first plate may be mounted on, and / or supported by, the biasing member. Spacing the biasing member from the end of the first plate may facilitate tilting motion of the first plate. In some examples, the biasing member may be arranged closer to the centre of the plate than the edge of the plate.

[0040] The end of the first plate closest to the heater may be an end of the plate closest to a main body (or housing) of the haircare device. The end of the plate closest to the heater may correspond to an end of the plate that is furthest from the tip portion of the plate.

[0041] For a first one of the one or more (e.g. plurality of) pairs of plates, the biasing member is connected between the first plate of the first pair of plates and the second plate of an adjacent (e.g. directly adjacent) one of the one or more pairs of plates. For example, the biasing member for the first pair of plates may be connected between the first plate of the first pair, and the second plate of the second, adjacent pair. Accordingly, the second plate of the second pair of plates may correspond to the fixed member mentioned above. A gap (space) may be provided between the first plate of the first pair and the second plate of the second, adjacent pair in which the biasing member is located. Arranging the biasing member between adjacent pairs of plates may avoid the biasing member interfering with hair in the channel. 8 P005278-W001

[0042] In some cases, the first plate in each pair may be movable, whilst the second plate in each pair of plates may be fixed (static), e.g. relative to a body of the haircare device or relative to the heater of the haircare device. Thus, for each pair of plates, the first plate may be movable relative to the second plate to move between the first and second position (e.g. to open and close the channel).

[0043] Where the haircare device comprises a plurality of guide members, for a second one of the one or more pairs of plates, the biasing member may be connected between the first plate of the second pair and a biasing member holding portion connected to one of the plurality of guide members. Accordingly, one of the guide members may act as the fixed member mentioned above for the second pair of plates. The biasing member portion may form part of the guide member, or be connected to the guide member.

[0044] Where the pairs of plates are arranged in a row, the second pair of plates may be at an end of the row. Thus, there may be no directly adjacent pair of plates to which the biasing member. Accordingly, the guide member may act as the fixed member for the second pair of plates at the end of the row.

[0045] For each of the one or more pairs of plates, the first plate and the second plate contact one another in the second position, the heater is configured to heat the second plate, and the first plate may be arranged to receive heat from the second plate in the second position. In this manner, both plates in the pair can be heated prior to insertion of hair into the channel, so that the hair can be heated on both sides. This arrangement facilitates heating of both plates, whilst allowing the plates to move between the first and second positions. In line with the discussion above, the second plate may be fixed (static), whilst the first plate may be movable. Thus, the fixed second plate can be heated by the heater, with the movable first plate being heated when it is in contact with the second plate. This avoids the need for a connection between the heater and the movable plate, thus simplifying a construction of the device.

[0046] In some examples, for each of the one or more pairs of plates, the first plate and the second plate may be movable and / or tiltable relative to the body of the haircare device. In this way, the contact area between the plates and the hair between the plates may be further increased and, in turn, the heat transfer from the plates to the tress of hair may be further increased. 9 P005278-W001

[0047] The second plate may be continuously (e.g. permanently) thermally connected to the heater. In this manner, heat generated by the heater can be transmitted to the second plate, to heat the second plate. When the plates are in the second position, the first plate is in (thermal) contact with the second plate, and can therefore received heat from the second plate. Accordingly, there may be no continuous thermal connection between the heater and the first plate in use. In line with the discussion above, the second plate may be fixed such that there is a continuous thermal connection between the heater and the second plate in use.

[0048] In some cases, the at least one of the first plate and the second plate may be thermally connected to the heater to receive heat from the heater. Thus, there may be a thermal connection (e.g. thermal link, heat conduction path) between the heater and the at least one of the first and second plate. For example, as mentioned above, the second plate may be thermally coupled to the heater. In other examples, the heater may be thermally connected to both plates in the pair. The heater may comprise a resistive heater. In this manner, a current may be provided to the heater to cause the heater produce resistive heating, which in turn heats the at least one plate.

[0049] In some cases, the heater may comprise a light source configured to irradiate the least one of the first plate and the second plate in each pair of plates to thereby heat the at least one of the first plate and the second plate. Thus, the at least one of the first and second plate may be radiatively heated. In some examples, the heater may comprise an infrared light source. The light source may be arranged to irradiate a portion of the at least one of the first and second plate to heat the plate. Where the second plate is fixed, the light source may be arranged to irradiate a portion of the second plate to heat the second plate. In other examples, the light source may irradiate portions of both the first and second plates.

[0050] The haircare device may further comprise an adjustment mechanism operable to adjust a biasing force exerted by the respective biasing member of one or more of the pairs of plates. In this manner, the force with which the plates are urged towards the second position can be adjusted. This allows, for example, the force with which hair is clamped between the plates to be adjusted. For example, a user may wish to use a higher clamping force in order to tension their hair, or a lower clamping force when running their hair between the plates. 10 P005278-W001

[0051] Any suitable type of adjustment mechanism may be used. In some examples, the adjustment mechanism may be operable to adjust a preload (e.g. compression) of the biasing member, to thereby adjust the biasing force. For instance, the adjustment mechanism may comprise a rod that is movable (e.g. in a longitudinal direction) to adjust the preload of the biasing member.

[0052] The adjustment mechanism may be operable to adjust the biasing force for the biasing member in each of the one or more pairs. In this manner, a single adjustment may be made for all of the pairs of plates. For example, the biasing member of each pair may be connected to the adjustment mechanism, so that the preload of each biasing member can be adjusted. Where the adjustment mechanism comprises a rod, each biasing member may be connected to the rod, such the rod is movable (e.g. in a longitudinal direction) to adjust the preload of each biasing member.

[0053] Here, the biasing force of a biasing member refers to the force exerted by the biasing member to urge the plates towards the second position.

[0054] For each of the one or more pairs of plates, the second plate may have a tapered shape such that a tip portion of the second plate is thinner (less thick) than an end of the second plate closest to the heater. The tapered shape may increase a contact area between the second plate and hair in use, thus enhancing heat transfer to the hair. Moreover, the thicker end of the second plate may provide increased thermal mass which may provide a more consistent plate temperature as well as enhance thermal conduction to the tip portion from the heater.

[0055] Here, the tip portion of the second plate may refer to the tip portion described above, i.e. defining the opening of the channel. A thickness of the second plate may be defined with respect to a longitudinal direction that links mutually opposed surfaces of the first and second plates, e.g. such that the tip portion is thinner in the longitudinal direction.

[0056] The end of the second plate closest to the heater may be an end of the plate closest to a main body (or housing) of the haircare device. The end of the second plate closest to the heater may correspond to an end of the plate that is furthest from the tip portion of the plate. In some cases, the second plate of each pair may be connected to a common base portion, in which case the end of the second plate closest to the heater may be an end connected to the common base portion. 11 P005278-W001

[0057] For each of the one or more pairs of plates, the first plate may have a tapered shape such that a tip portion of the first plate is thicker than an end of the first plate closest to the heater. The tapered shape may increase a contact area between the first plate and hair in use, thus enhancing heat transfer to the hair. The thicker tip portion of the first plate may also increase a thermal mass of the first plate, and facilitate thermal conduction to the tip portion from the heater. Moreover, this may provide the first plate with a complementary shape to the second plate (e.g. where the second plate has a tapered shape as described above). This may facilitate fitting a first plate between neighbouring second plates, and allow a packing density of the plates to be increased (e.g. so that more plates can be provided for a device of a given length).

[0058] Here, the tip portion of the first plate may refer to the tip portion described above, i.e. defining the opening of the channel. A thickness of the first plate may be defined with respect to the longitudinal direction that links mutually opposed surfaces of the first and second plates, e.g. such that the tip portion is thicker in the longitudinal direction.

[0059] As discussed above, the end of the first plate closest to the heater may be an end of the plate closest to a main body (or housing) of the haircare device. The end of the plate closest to the heater may correspond to an end of the plate that is furthest from the tip portion of the plate.

[0060] The haircare device may further comprise a heat pipe configured to conduct heat from a first side of the one or more pairs of plates to a second, opposite side of the one or more pairs of plates. In this manner, a temperature gradient can be established between the first side and the second side of the one or more pairs of plates. For example, the second side may correspond to an inlet side of the one or more pairs of plates (e.g. a side on which hair is fed into the channel(s)), and the first side may correspond to an outlet side of the one or more pairs of plates (e.g. a side on which hair exits the channel(s)). Thus, the heat pipe may conduct heat from the outlet side to the inlet side, such that the inlet side may be hotter than the outlet side, which may enhance a styling performance of the device. In particular, this may promote rapid heating of the hair as it enters the channel(s).

[0061] The heat pipe may extend around an edge of the one or more pairs of plates, in order to link the first and second sides of the one or more pairs of plates. For instance, where the 12 P005278-W001 one or more pairs of plates are arranged in a row, the first side and second side may refer to opposite sides of the row.

[0062] The heat pipe may be removably attachable to the haircare device. For example, the heat pipe may be removably attachable to the body of the haircare device.

[0063] The haircare device may further comprise a first heating element arranged to heat hair on a first side of the one or more pairs of plates, and / or a second heating element to heat hair on a second, opposite side of the one or more pairs of plates. In line with the above, the second side may correspond to an inlet side of the one or more pairs of plates (e.g. a side on which hair is fed into the channel(s)), and the first side may correspond to an outlet side of the one or more pairs of plates (e.g. a side on which hair exits the channel(s)). In this manner, the hair can be heated as it enters and / or exits the channel(s). This may contribute to more uniform heating of the hair at the inlet and / or outlet side. The first heating element and / or the second heating element may comprise a respective heater, e.g. resistive heater.

[0064] The first heating element and / or the second heating element may be removably attachable to the haircare device, e.g. to the body of the haircare device. Where both the first heating element and the second heating element are provided, they may be provided as a single component which is removably attachable to the haircare device.

[0065] The haircare device may further comprise a first row of bristles on a first side of the one or more pairs of plates, and / or a second row of bristles on a second, opposite side of the one or more pairs of plates. In line with the above, the second side may correspond to an inlet side of the one or more pairs of plates (e.g. a side on which hair is fed into the channel(s)), and the first side may correspond to an outlet side of the one or more pairs of plates (e.g. a side on which hair exits the channel(s)). The first row of bristles may be arranged to engage hair exiting the channel(s) on the first side, and / or the second row of bristles may be arranged to engage hair entering the channel(s) on the second side. Thus, the bristles may serve to align the hair with the channel(s), which may facilitate passing hair through the channel (s).

[0066] The first row of bristles and / or the second row of bristles may be removably attachable to the haircare device, e.g. to the body of the haircare device. Where both the first row of bristles and the second row of bristles are provided, they may be provided as a single component which is removably attachable to the haircare device. 13 P005278-W001

[0067] BRIEF DESCRIPTION OF THE DRAWINGS

[0068] Figure 1 shows a schematic perspective view of a haircare device.

[0069] Figure 2 shows a schematic top view of the haircare device.

[0070] Figure 3 shows a schematic side cross-sectional view of a head portion of the haircare device.

[0071] Figure 4 shows a schematic side cross-sectional view of a plurality of plates of the haircare device.

[0072] Figure 5 shows a schematic top cross-sectional view of a plurality of plates of the haircare device.

[0073] Figure 6 shows a schematic side view of a plurality of second plates of the haircare device.

[0074] Figure 7 shows a schematic side view of a first plate of the haircare device.

[0075] Figure 8 shows a schematic side cross-sectional view of the head portion of the haircare device, at a start of insertion of hair into the device.

[0076] Figure 9 shows a schematic side cross-sectional view of the head portion of the haircare device, following insertion of hair into the device.

[0077] Figures 10a- 10c show schematic top cross-sectional views of plates in the haircare device, at different stages of insertion of hair between the plates.

[0078] Figure 11 shows a schematic end view of the haircare device.

[0079] Figure 12 shows a schematic side cross-sectional view of a head portion of another haircare device.

[0080] DETAILED DESCRIPTION

[0081] A haircare device 10 is described with reference to Figs. 1 to 10. Figs. 1 and 2 show a perspective view and a top view of the haircare device 10, respectively. The haircare device 10 comprises a body having a head portion 12 and a handle portion 14 connected to the head portion 12. Fig. 3 shows a cross-sectional views of the head portion 12, the crosssection being taken along a plane A-A (shown in Fig. 2) that extends in a longitudinal direction of the haircare device 10. 14 P005278-W001

[0082] The head portion 12 of the haircare device 10 comprises a plurality of pairs of plates 16 arranged in a row extending in the longitudinal direction of the haircare device 10. A cross- sectional view of the plurality of pairs of plates 16 on their own is shown in Fig. 4, taken along the plane A- A. A top cross-sectional view of the plurality of pairs of plates 16, taken along the plane B-B indicated in Fig. 4, is shown in Fig. 5. The example shown includes 15 pairs of plates, however other examples may include different numbers of pairs of plates. Each pair of plates includes a first plate 18a and a second plate 18b which are mutually opposed so as to define a channel for receiving hair therebetween. The second plate 18b has a fixed position, and the first plate 18a is movable relative to the second plate 18a between a first (e.g. open) position and a second (e.g. closed) position. In the first position, a width of the channel between the plates 18a, 18b is greater than in the second position. In Fig. 4, each of the pairs of plates is in the second position, with the first plate 18a and the second plate 18b of each pair contacting one another so as to close the channel therebetween. Each pair of plates further includes a biasing member 20 which is arranged to urge the first plate 18a towards the second plate 18b, i.e. so that the plates 18a, 18b are biased towards the second position. The biasing member 20 may comprise a spring. For example, as shown in Fig. 5, each pair of plates has a biasing member 20 in the form of a leaf spring. Of course, other types of spring may be used.

[0083] In more detail, the plurality of pairs of plates 16 comprises of a row of evenly spaced second plates 18b (i.e. one for each pair), shown on their own in Fig. 6. The second plates 18b are fixedly connected to a base portion 22, to form a single unit. For example, the row of second plates 18b may be integrally formed with the base portion 22. The base portion 22 may comprise mounting points 24 (e.g. through-holes) for mounting the row of second plates 18b in the head portion 12 of the haircare device 10. The first plates 18a are then movably mounted in gaps between the second plates 18b. In particular, for each pair, the first plate 18a is movable and mounted on the biasing member 20 for that pair, with the biasing member 20 being arranged to urge the first plate 18a towards the second plate 18b in that pair. The first plate 18a includes an engagement face 26 (see Fig. 7 which shows the first plate 18a on its own) which is configured to engage (contact) the second plate 18b in the second position.

[0084] The biasing member 20 is connected to the first plate 18a on a side of the first plate 18a opposite the engagement face 26, i.e. so that the biasing member 20 is not located in the 15 P005278-W001 channel between the first and second plates 18a, 18b of a same pair. Instead, for a given (e.g. first) pair of plates, the biasing member 20 is located between the first plate 18a of that pair, and the second (fixed) plate 18b of a directly adjacent pair. Thus, as shown in Fig. 5, there may be a gap 28 between the first plate 18a of the first pair, and the second plate 18b of the adjacent pair in which the biasing member 20 is located. In other words, the biasing members 20 are located in gaps 28 between adjacent ones of plurality of pairs of plates 16. As shown, a groove or cavity may be formed in a back surface 30 of the first plate 18a of the first pair and / or a back surface of the second plate 18b of the adjacent pair for receiving the biasing member 20. The back surface 30 of the first plate 18a is on an opposite side of the first plate 18a relative to the engagement face 26.

[0085] For the pair of plates at a first end of the row (on the left-hand side in the drawings), there is no directly adjacent pair of plates against which to mount its biasing member 20. Accordingly, the biasing member 20 for the pair at the first end of the row may be mounted between the back surface 30 of the first plate 18a for that pair and a fixed member 42a, an example of which is provided below.

[0086] Accordingly, each pair of plates in the plurality of pairs of plates 16 is individually (independently) movable between a first (e.g. open) position and a second (e.g. closed) position, each pair of plates having a respective biasing member 20 arranged to urge the first plate 18a towards the second plate 18b.

[0087] The first plate 18a and the second plate 18b of each pair have tip portions that are shaped to define a flared opening for the channel between the first and second plates 18a, 18b. In particular, the tip portions of the first plate 18a and the second plate 18b have surfaces that curve away from one another to define an opening that widens away from the base portion 22. The curved tip portion 23a of the first plate 18a is indicated in Fig. 7, whilst the curved tip portion 23b of one of the second plates 18b is indicated in Fig. 6. The curved tip portion 23a is located at an end of the first plate 18a which is furthest from the base portion 22. Likewise, the curved tip 23b is located at an end of the second plate 18b which is furthest from the base portion 22. The flared opening defined between the curved tip portions 23a, 23b serves to guide hair into the channel between the first plate 18a and the second plate 18b. 16 P005278-W001

[0088] As shown in Fig. 6, each of the second plates 18b have a tapered shape, such that the tip portion 23b of each second plate 18b is thinner (in the longitudinal direction) compared to an end of the second plate 18b that is connected to the base portion 22. The tapered shape increases the contact area between the plates and the hair in use. Moreover, the thicker end of the second plate 18b connected to the base portion 22 provides increased thermal mass and, in turn, increased thermal inertia, which may provide a more consistent plate temperature as the plates move along a hair tress.

[0089] Furthermore, as shown in Fig. 7, each of the first plates 18a may have a tapered shape, such that the tip portion 23a of the first plate 18a is thicker (in the longitudinal direction) compared to the end of the first plate 18a closest to the base portion 22. In this manner, the thicker tip portion 23a of the first plate may facilitate improved thermal conduction to the tip portion 23a from the heater 32. Moreover, the first and second plates 18a, 18b may have complementary shapes to increase a quantity of plates along the length of the haircare device.

[0090] The head portion 12 of the haircare device 10 further includes a heater 32 that is arranged to heat the row of second plates 18b. In particular, the heater 32 is arranged to heat the base portion 22, to thereby heat the second plates 18b. In the example shown, the heater 32 is a resistive heating plate which is in contact with a surface of the base portion 22 to transmit heat to the base portion 22. Other types of heater may also be used. For instance, in some examples, the heater may comprise a light source (e.g. infrared light source) arranged to irradiate the base portion 22 to heat the base portion 22 and the fixed plates 18b. A temperature sensor (e.g. thermocouple) may be provided for detecting a temperature of the heater 32. The temperature sensor may be used by a controller of the haircare device 10 for controlling the temperature of the heater 32, e.g. via a suitable feedback loop. The heater 32 may be configured to heat to any suitable temperature for drying and / or styling hair, and in some cases the temperature of the heater 32 may be adjustable. In some cases, the heater 32 may be configured to heat the plates to a temperature between 120 and 210 degrees Celsius. For example, the heater 32 may be configured to heat the plates to a temperature between 140 and 190 degrees Celsius. Such a temperature may provide effective drying and styling performance, whilst avoiding hair damage. 17 P005278-W001

[0091] The base portion 22 and the second plates 18b are formed of a suitable thermally conductive material, such as a metal. For example, the base portion 22 and the fixed plates 18b may be formed of steel, zinc, and / or aluminium alloys. Likewise, the first plates 18a are formed of a thermally conductive material, e.g. steel, zinc, and / or aluminium alloys. The first and second plates 18a, 18b may be formed of the same material. Accordingly, for each pair of plates, when the first plate 18a is in contact with the second plate 18b (i.e. when the pair is in the second position), the first plate 18a is thermally coupled to the second plate 18b so that the first plate 18a can receive heat from the heater 32 via the second plate 18b.

[0092] In some cases, it may be advantageous to use a material having a higher heat capacity (e.g. steel, in comparison to aluminium which has a lower heat capacity) for the first and / or second plates 18a, 18. Indeed, with a higher heat capacity material, the plates 18a, 18b can be made thinner without compromising an ability of the plates to transfer heat to hair, which may allow for wider channels between the plates. Moreover, a higher heat capacity material may result in a more consistent plate temperature during use. Thus, the first plates 18a and the second plates 18b in the plurality of pairs 16 may comprise steel alloys, or other materials having a comparable heat capacity. In some examples the first plates 18a and / or the second plates 18b in the plurality of pairs 16 may comprise a phase change material to provide a more consistent plate temperature during use.

[0093] The heater 32 is enclosed within a housing 34 of the haircare device 10. The housing 34 may also enclose other components, such as control electronics for controlling operation of the heater 32. A power cable 36 is connected to an end of the handle portion 14, the power cable 36 being connectable to an external power source for powering the haircare device 10, and in particular for powering the heater 32. Additionally, or alternatively, the haircare device 10 may be provided with an internal power source located in the housing 34, e.g. in the form of a rechargeable battery. A switch 37 is provided on the handle portion 14 for switching the heater 32 on or off.

[0094] For each pair of plates, the biasing member 20 is connected to the first plate 18a at a position that is spaced apart from an end of the first plate 18a that is closest to the heater 32 (i.e. an end that is closest to the base portion 22). Thus, as shown, the biasing member 20 may be spaced from the base portion 22, e.g. such that it is located part way along a height 18 P005278-W001 of the first plate 18a. Such an arrangement of the biasing member 20 may facilitate tilting motion of the first plate 18a, as discussed further below.

[0095] The haircare device 10 further includes a plurality of guide members 38 which extend over the plurality of pairs of plates 16, to prevent (avoid) contact between the user’s scalp and the pairs of plates 16. The plurality of guide members 38 is made of a material having a lower thermal conductivity than the plurality of plates 16. In some cases, the plurality of guide members 38 may be made of a thermally insulating material, such as a glass filled plastic, polyphenylene sulphide or polyether ether ketone. The glass filled plastic may be, or comprise, glass filled nylon or glass filled polypropylene.

[0096] The plurality of guide members 38 are aligned in a row and spaced so as to define a plurality of gaps 40. For example, the plurality of guide members 38 may be in the form of a plurality of (substantially) parallel ribs that extend over the plurality of pairs of plates 16. The plurality of guide members 38 may extend from a first side to a second (opposite) side of the plurality of pairs of plates 16, such that each guide member 38 extends in a direction parallel to a direction of the channels between the pairs of plates.

[0097] Each gap 40 is defined between a respective pair of neighbouring guide members 38. Each gap 40 is aligned with the channel of a respective one of the pairs of plates 16. Thus, for each pair of plates in the plurality of pairs 16, there is a corresponding pair of guide members 38 defining a gap 40 that is aligned with the channel between that pair of plates. The guide members 38 are thus arranged to guide hair into the channel between each pair of plates. Moreover, as shown, the plurality of guide members 38 cover the gaps 28 between adjacent pairs of plates. In particular, each gap 28 between the first plate 18a of a first pair of plates, and the second plate 18b of an adjacent pair of plates (in which the corresponding biasing member 20 is located) is covered by a respective guide member 38. This serves to prevent hair from falling into the gaps 28 between adjacent pairs of plates, whilst guiding the hair into the channel of each pair. The guide members 38 have curved tips facing outwards (i.e. away from the pairs of plates 16). This may facilitate dividing hair between the channels, and avoid hair becoming tangled on the guide members 38.

[0098] Fig. 11 shows an end view of the haircare device 10, looking along the longitudinal direction of the haircare device 10. An example profile of the guide members 38 can be seen in Fig. 11. In particular, as shown in Fig. 11, the guide members 38 may have a 19 P005278-W001 rounded shape in a lateral direction of the haircare device 10, the lateral direction being normal to the longitudinal direction of the haircare device 10 (the longitudinal direction corresponding to the direction in which the row of pairs of plates extends). Such a rounded shape of the guide members 38 may facilitate rolling the haircare device 10 against the user’s head. Furthermore, as shown, the housing 34 may have a rounded profile, which may facilitate wrapping hair around the head portion 12 of the haircare device 10, e.g. for hair curling.

[0099] A first one 38a of the guide members, which is located at a first end of the plurality of guide members 38 (shown on a left-hand side of the drawings) comprises a first end plate 42a which is arranged to cover the first end of the plurality of pairs of plates 16. For instance, the first end plate 42a may extend from the first guide member 38a towards the base portion 22, to at least partially cover the first end of the plurality of pairs of plates 16. Similarly, a second one 38b of the guide members, which is located at a second end of the plurality of guide members 38 (shown on a right-hand side of the drawings) comprises a second end plate 42b which is arranged to cover a second end of the plurality of pairs of plates 16. For instance, the second end plate 42b may extend from the second guide member 38b towards the base portion 22, to at least partially cover the second end of the plurality of pairs of plates 16.

[0100] For the pair of plates at the first end of the plurality of pairs of plates 16 (on the left-hand side in the drawings), the biasing member 20 for that pair is mounted between the back surface 30 of the first plate 18a for that pair and the first end plate 42a.

[0101] The plurality of guide members 38 may be formed as a single component (unit). For example, the plurality of guide members 38 may be connected to a common base 44. The base 44 extends around an edge of the row of pairs plates 16, so as to prevent hair passing under the pairs of plates 16. In some cases, the base 44 may be removably mountable on the head portion 12 of the haircare device 10. For instance, the base 44 may be removably mountable on (connectable to) the housing 34, e.g. via a releasable fastener, snap-fit connection, or any other releasable fastening. In this manner, the plurality of guide members 38 can readily be connected and disconnected, e.g. to replace the plurality of guide members 38. Alternatively, the base 44 may be formed as part of the housing 34, e.g. such that the plurality of guide members 38 are directly connected to the housing 34. 20 P005278-W001

[0102] An example operation of the haircare device 10 is now described with reference to Figs. 3, 8, and 9. To start, as shown in Fig. 3, the plurality of pairs of plates 16 are in the second position, with the first plate 18a urged into contact with the second plate 18b by the biasing member 20. In this arrangement, the heater 32 can be activated to heat the plurality of pairs of plates 16, the first plate 18a in each pair receiving heat from the heater 32 via contact with the second plate 18b.

[0103] Next, as shown in Fig. 8, portions (e.g. tresses) of hair 50 are introduced into the channels of several of the pairs of plates 16. The guide members 38 guide the hair 50 towards the flared openings defined by the tip portions 23a, 23b of the plates. As the hair 50 enters the channel between the first plate 18a and the second plate 18b of a give pair, the first plate 18a and the second plate 18b are pushed apart, causing the channel between the first and second plates 18a, 18b to open. In the example shown, the first plate 18a of each pair is arranged to tilt in response to insertion of hair into the channel. In particular, as described above, the first plate 18a is mounted on the biasing member 20. The elastic nature of the biasing member 20 enables the first plate 18a to tilt (e.g. pivot) relative to the second plate 18b as hair is inserted between the first plate 18a and the second plate 18b. Thus, as shown in Fig. 8, when the hair 50 is inserted into the flared opening, this causes the first plate 18a to tilt such that the tip portion 23a of the first plate 18a is further from the second plate 18b compared to end of the first plate 18a opposite the tip portion 23a. The first plate 18a tilts such that an opening of the channel between the tip portions 23a, 23b of the first and second plates 18a, 18b is wider than an opposite end of the channel. Indeed, the ends of the first and second plates 18a, 18b opposite the tip portions 23a, 23b may remain in contact whilst the tip portion 23a is pushed away from the tip portion 23b. Such tilting of the first plate 18a serves to increase a width of the opening of the channel during initial insertion of the hair 50, which may facilitate inserting hair into the channel.

[0104] From the arrangement shown in Fig. 8, the portions of hair may be inserted further into the channels between the pairs of plates, to arrive at the configuration shown in Fig. 9. Thus, Fig. 9 shows the haircare device 10 when the portions of hair 50 have been inserted more fully into the channels of several of the pairs of plates 16. As shown, the hair 50 is distributed more evenly within the channels (compared to the arrangement in Fig. 8), e.g. across a height of the channels. In the arrangement of Fig. 9, the first plate 18a is spaced apart from the second plate 18b, with the hair 50 located in the channel between the first 21 P005278-W001 and second plates 18a, 18b. This results in compression of the biasing member 20, which exerts a force of the first plate 18a urging the first plate 18a towards the second plate 18b. In this manner, the first plate 18a presses the hair against the first plate 18b, effectively clamping the hair 50 in the channel. In this arrangement, heat from the first plate 18a and the second plate 18b may be transferred to the hair 50 held therebetween.

[0105] In the arrangement of Fig. 9, a width of the channel is more uniform compared to the arrangement shown in Fig. 8. In particular, opposing surfaces of the first plate 18a and the second plate 18b may be substantially parallel. Thus, as the hair 50 is progressively inserted into the channel, the first plate 18a may tilt from the position shown in Fig. 8 to the position shown in Fig. 9.

[0106] Following the application of heat to the hair 50, the hair 50 can be removed from the channels, allow the pairs of plates 16 to return to the second position, as shown in Fig. 3.

[0107] As discussed above in relation to Fig. 8, the first plate 18a is tiltable to vary a width of the channel along a height of the channel. Here, the height of the channel is in a height direction linking the base portion 22 and the tip portion 23b of the second plate 18b. Additionally, the first plate 18a may be tiltable to vary the width of the channel along a lateral direction of the channel. Here, the lateral direction of the channel refers to a direction normal to the height direction, linking opposite sides of the channel. In other words, the first plate 18a may be tiltable relative to a height direction and / or relative to a lateral direction of the plates.

[0108] Such lateral tilting of the first plate 18a is illustrated in Figs. lOa-lOc, which show a schematic cross-sectional diagram of one of the pairs of plates 16, taken along the same plane B-B as Fig. 5. Figs. lOa-lOc show the first plate 18a and the second plate 18b of the pair, as well as the corresponding biasing member 20 which is mounted between the first plate 18a and a second plate 18bb of an adjacent pair of plates. In this example, the biasing member 20 is an arc-shaped leaf spring, where the first plate 18a is mounted against an apex of the leaf spring. Arranging the leaf spring in this manner may facilitate tilting motion of the first plate 18a. In Fig. 10a, the first plate 18a and the second plate 18b are in the second position. Alternatively, an orientation of the leaf spring may be reversed compared to the arrangement shown in Figs. lOa-c, e.g. such that a base of the leaf spring contacts the first plate 18a and the apex of the leaf spring contacts the second plate 18b. 22 P005278-W001

[0109] Fig. 10b shows a portion of hair 52 which is introduced into the channel between the first plate 18a and the second plate 18b from a first side of the plates 18a, 18b. This causes the first plate 18a to tilt relative to the second plate 18b to increase a spacing between the first ends of the plates 18a, 18b. The first plate 18a is tilted such that the first ends of the plates 18a, 18b are further apart than second, opposite ends of the plates which may contact one another. As shown in Fig. 10b, the biasing member 20 (e.g. leaf spring) deforms in response to tilting of the first plate 18a. Fig. 10c shows the plates 18a, 18b after the portion of hair 52 has been fully inserted through the channel such that the hair 52 extends between the first and second ends of the plates 18a, 18b. In this arrangement, the first plate 18a is no longer tilted relative to the lateral direction, with a width of the channel being substantially uniform in the lateral direction.

[0110] The haircare device 10 may further comprise an attachment 54 which extends along opposite sides of the plurality of pairs of plates 16. In particular, the attachment 54 may comprise a first side portion 56 that extends along the first side of the pair of plates 16, and second side portion 58 that extends along the second (opposite) side of the pair of plates 16, and optionally a connecting portion 60 linking the first and second side portions 56, 58. The attachment 54 may thus have a “U” shape, or a horse-shoe shape, to fit around the sides of the row of pairs of plates 16. The attachment 54 may be removably mountable on the head portion 12 of the haircare device 10. Alternatively, the attachment 54 may be formed as part of the head portion 12. Various examples of the attachment 54 are described below.

[0111] In some examples, the attachment 54 may comprise a heat pipe configured to conduct heat from the first side portion 56 to the second side portion 58. In this manner, in use, heat may be conducted from the first side to the second side of the pair of plates 16.

[0112] In some examples, the first side portion 56 and / or the second side portion 58 may comprise a heater (e.g. a resistive heater) for heating hair on the first side and / or on the second side of the pairs of plates 16.

[0113] In some examples, a first row of bristles (not shown) may be provided along the first side portion 56 to engage hair on the first side of the pairs of plates 16, and / or a second row of bristles may be provided along the second side portion 58 to engage hair on the second side of the pairs of plates 16. 23 P005278-W001

[0114] Fig. 12 shows a cross-sectional view of a head portion 12 of another haircare device 70. The haircare device 70 operates in a similar manner to the haircare device 10 described above. Features of the haircare device 70 which correspond to those of haircare device 10 are indicated in Fig. 12 with the same reference numerals as in the preceding figures, and are not described again.

[0115] The haircare device 70 comprises an adjustment mechanism 72 for adjusting a force exerted by the biasing member 20 for each of the pairs of plates 16. The adjustment mechanism 72 comprises a rod 74 which extends in the longitudinal direction, and which is movable in the longitudinal direction relative to the head portion 12 of the haircare device 70. The rod 74 may be located within the housing 34, e.g. next to or below the base portion 22. The biasing member 20 for each pair of plates is in the form of a resilient member (e.g. leaf spring) which is engaged at one end with the back surface 30 of the first plate 18a for that pair, and is connected at another end to the rod 74. Accordingly, by moving the rod 74 in the longitudinal direction, a force with which the biasing member 20 of each pair of plates presses the first plate 18a towards the second plate 18b can be adjusted. For example, moving the rod 74 towards a distal end of the device 70 (i.e. towards the right in Fig. 12) will move the ends of the biasing members 20 connected to the rod towards the distal end, thus increasing a force with which the biasing members 20 press the first plates 18a towards the second plates 18b. On the other hand, moving the rod 74 away from the distal end of the device 70 (i.e. towards the left in Fig. 12) will move the ends of the biasing members 20 connected to the rod away from the distal end, thus reducing a force with which the biasing members 20 press the first plates 18a towards the second plates 18b. The haircare device 70 may, for example, comprise a slider arranged on the handle portion 14 for adjusting (e.g. setting, controlling) a longitudinal position of the rod 74, to thereby adjust the force exerted by the biasing members 20 on the first plates 18a. In this manner, a force with which hair is clamped between the pairs of plates can be adjusted.

Claims

24 P005278-W001CLAIMS1. A haircare device comprising: one or more pairs of plates, each pair of plates comprising a respective first plate and second plate which are mutually opposed; and a heater arranged to heat at least one of the first plate and the second plate in each pair of plates; wherein each pair of plates is arranged to define a respective channel for receiving hair, each pair of plates being independently movable between a first position and a second position, such that a width of the channel is smaller in the second position than in the first position; and wherein each pair of plates comprises a respective biasing member arranged to urge the pair of plates towards the second position.

2. A haircare device according to claim 1 wherein, for each pair of plates, an opening of the channel is defined between a tip portion of the first plate and a tip portion of the second plate, the opening having a flared shape.

3. A haircare device according to claim 2, wherein the opening is at least partly defined by a first surface of the tip portion of the first plate, the first surface being curved; and / or the opening is at least partly defined by a second surface of the tip portion of the second plate, the second surface being curved.

4. A haircare device according to any preceding claim, further comprising a plurality of guide members extending over the one or more of pairs of plates to prevent contact between a user’s scalp and the one or more pairs of plates, the plurality of guide members being arranged to define a plurality of gaps, each gap being aligned with the channel of a respective one of the one or more pairs of plates to thereby guide hair between the respective pair of plates.25 P005278-W0015. A haircare device according to claim 4, wherein the plurality of guide members is provided as a single component; and optionally wherein the single component is removably connectable to a body of the haircare device.

6. A haircare device according to claim 4 or 5, wherein each of the plurality of gaps defined by the plurality of guide members flares outwards in a direction away from the channel of the respective pair of plates.

7. A haircare device according to one of claims 4 to 6, wherein the plurality of guide members is arranged to cover a gap or interface between adjacent ones of the one or more pairs of plates.

8. A haircare device according to any preceding claim, wherein the one or more pairs of plates is arranged in one or more rows.

9. A haircare device according to any preceding claim wherein, for each of the one or more pairs of plates, the first plate and / or the second plate is arranged to tilt in response to insertion of hair into the channel.

10. A haircare device according to any preceding claim wherein, for each of the one or more pairs of plates, the biasing member is connected to the first plate and arranged to urge the first plate towards the second plate.

11. A haircare device according to claim 10, wherein biasing member is connected to the first plate on a side opposite an engagement surface of the first plate, the engagement surface of the first plate being arranged to contact the second plate in the second position.

12. A haircare device according to claim 10 or 11, wherein the biasing member is connected to the first plate at a position that is spaced apart from an end of the first plate that is closest to the heater.26 P005278-W00113. A haircare device according to one of claims 10 to 12 wherein, for a first one of the one or more pairs of plates, the biasing member is connected between the first plate of the first pair of plates and the second plate of an adjacent one of the one or more pairs of plates.

14. A haircare device according to one of claims 10 or 13 and one of claims 4 to 7 wherein, for a second one of the one or more pairs of plates, the biasing member is connected between the first plate of the second pair and a biasing member holding portion connected to one of the plurality of guide members.

15. A haircare device according to any preceding claim, wherein the biasing member comprises a spring.

16. A haircare device according to any preceding claim wherein, in the second position, the first plate and the second plate contact one another.

17. A haircare device according to claim 16 wherein, for each of the one or more pairs of plates, the heater is configured to heat the second plate, and the first plate is arranged to receive heat from the second plate in the second position.

18. A haircare device according to any preceding claim, wherein the at least one of the first plate and the second plate is thermally connected to the heater to receive heat from the heater.

19. A haircare device according to any preceding claim, wherein the heater comprises a light source configured to irradiate the least one of the first plate and the second plate in each pair of plates to thereby heat the at least one of the first plate and the second plate.

20. A haircare device according to any preceding claim, further comprising an adjustment mechanism operable to adjust a biasing force exerted by the respective biasing member of one or more of the pairs of plates.27 P005278-W00121. A haircare device according to any preceding claim wherein, for each of the one or more pairs of plates, the second plate has a tapered shape such that a tip portion of the second plate is thinner than an end of the second plate closest to the heater.

22. A haircare device according to any preceding claim where, for each of the one or more pairs of plates, the first plate has a tapered shape such that a tip portion of the first plate is thicker than an end of the first plate closest to the heater.

23. A haircare device according to any preceding claim, further comprising a heat pipe configured to conduct heat from a first side of the one or more pairs of plates to a second, opposite side of the one or more pairs of plates.

24. A haircare device according to any preceding claim, further comprising a first heating element arranged to heat hair on a first side of the one or more pairs of plates, and / or a second heating element to heat hair on a second, opposite side of the one or more pairs of plates.

25. A haircare device according to any preceding claim, further comprising a first row of bristles on a first side of the one or more pairs of plates, and / or a second row of bristles on a second, opposite side of the one or more pairs of plates.

Images