HAIR STYLING DEVICE
20230132429 · 2023-05-04
Inventors
- Alfredo DEBENEDICTIS (Birmingham, GB)
- Janusz Lucien HOLLAND (Birmingham, GB)
- Mark Christopher HUGHES (Birmingham, GB)
- Martin Malcolm HARRIS (Birmingham, GB)
- James Robert NELSON (Birmingham, GB)
- Suraj SOREN (Birmingham, GB)
Cpc classification
A45D1/02
HUMAN NECESSITIES
A45D20/12
HUMAN NECESSITIES
International classification
Abstract
The invention relates to a hair styling device, and in particular a multifunctional hair styling device having components which can carry out a number of different (and distinct) styling operations. The invention provides a hair styling device having a body portion and a handle portion, the body portion having an air inlet and an air outlet, an impeller between the air inlet and the air outlet and an electric motor to rotate the impeller, the handle portion having a pair of heating panels. The handle portion is separable from the body portion and can be used alone as a hair straighter, or the device can be used as a hair dryer with the handle portion attached to the body portion. The body portion can optionally include a hair curling chamber adapted for hair curling.
Claims
1. A hair styling device having a body portion and a handle portion, the body portion having an air inlet and an air outlet, an impeller between the air inlet and the air outlet and an electric motor to rotate the impeller, the handle portion having a pair of heating panels, each heating panel having one or more electrical heating element(s), the handle portion being separable from the body portion, the body portion having at least one heating element which is separate from the heating panels.
2. A hair styling device according to claim 1 in which the handle portion has two substantially planar heating panels.
3. A hair styling device according to claim 1 in which the heating panels are mounted to respective arms which can move towards and away from each other, in which the arms are connected together by way of a hinged joint, and in which the hinged joint is located adjacent to an end of the handle portion.
4. A hair styling device according to claim 1 in which the handle portion has respective covering parts which cover the heating panels, and in which each covering part has a number of surface deformations which act to dissipate heat.
5. A hair styling device according to claim 4 in which the surface deformations are elongate ribs in the covering part.
6. A hair styling device according to claim 1 in which the body portion has a mounting structure to which the handle portion can be attached.
7. A hair styling device according to claim 6 in which the mounting structure comprises a generally planar platform projecting from the remainder of the body portion.
8. A hair styling device according to claim 6 in which the mounting structure has at least one protective formation which covers a part of a side edge of the heating panels when the handle portion is attached to the body portion.
9. A hair styling device according to claim 6 in which the mounting structure has an opening which is sized and shaped to accommodate the heating panels.
10. A hair styling device according to claim 9 in which the body portion has a mounting structure to which the handle portion can be attached, and in which the protective formation is located adjacent to a side of the opening.
11. A hair styling device according to claim 10 in which the protective formation is continuous and extends beyond the ends of the heating panels when the handle portion is attached to the body portion.
12. A hair styling device according to claim 6 in which the mounting structure comprises a fixed part and a movable part, the fixed part being fixed relative to the remainder of the body portion and the movable part being movable relative to the fixed part.
13. A hair styling device according to claim 12 in which the mounting structure has an opening which is sized and shaped to accommodate the heating panels, and in which the opening is located in the movable part.
14. A hair styling device according to claim 12 in which the movable part of the mounting structure and the handle portion have cooperating formations to ensure that these elements move together.
15. A hair styling device according to claim 14 in which the cooperating formations comprise at least one projection and at least one recess which can accommodate the projection.
16. A hair styling device according to claim 1 in which the handle portion is secured to the body portion by a latch mechanism.
17. A hair styling device according to claim 16 in which the body portion has a mounting structure to which the handle portion can be attached, in which the mounting structure comprises a fixed part and a movable part, the fixed part being fixed relative to the remainder of the body portion and the movable part being movable relative to the fixed part, and in which the latch mechanism includes a latch member which is mounted on the fixed part of the mounting structure and which can releasably engage the movable part of the mounting structure.
18. (canceled)
19. A hair styling device according to claim 1 in which, when the handle portion is attached to the body portion, the heating panels are located outside the body portion
20. A hair styling device according to claim 1 in which the body portion has a curling chamber, the curling chamber having a rotatable element and an elongate member, at least part of the rotatable element and at least part of the elongate member being in the curling chamber, the curling chamber having a primary opening through which a section of hair can pass into the chamber, the rotatable element being located adjacent to the opening and being shaped to pull the section of hair through the opening in use, the rotatable element winding the section of hair around the elongate member in use, air in use flowing from the air inlet to the air outlet by way of the curling chamber.
21. A hair styling device according to claim 20 in which the curling chamber has a secondary opening through which the section of hair can pass out of the curling chamber, and in which the elongate member has a free end.
22. A hair styling device according to claim 21 in which a movable abutment is located adjacent to the free end and to the secondary opening, the movable abutment having a closed position in which the section of hair is retained in the curling chamber and an open position in which the section of hair can move off the free end of the elongate member and pass out of the curling chamber.
23. A hair styling device according to claim 22 in which the movable abutment spans at least 50% of the area of the secondary opening.
24. A hair styling device according to claim 20 in which the electric motor to rotate the impeller is a first electric motor and the body portion has a second electric motor to rotate the rotatable element.
25. A hair styling device according to claim 20 in which air enters the curling chamber by way of a number of openings or perforations in the elongate member.
26. A hair styling device according to claim 25 in which the outer wall of the curling chamber is also perforated, and in which the combined area of the perforations in the outer wall plus the area of the primary opening exceeds the combined area of the perforations in the elongate member.
27. A hair styling device according to claim 1 in which the handle portion has a controller and user-actuatable controls for the heating panels, and a controller and user-actuatable controls for the electric motor(s) in the body portion.
Description
BRIEF DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0062] The invention will now be described in more detail, by way of example, with reference to the accompanying drawings, in which:
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DETAILED DESCRIPTION
[0074] The hair styling device 10 has a body portion 12 and a handle portion 14. In common with a conventional hair dryer the body portion 12 has an air inlet 16 and an air outlet 18. An impeller and an electric motor to rotate the impeller (not seen) are mounted in the body portion 12 between the air inlet 16 and the air outlet 18.
[0075] The air can be heated as it flows from the air inlet 16 to the air outlet 18. In this embodiment the heat is provided by an electric heating element (not seen) inside the body portion. In other embodiments the heating panels 20 of the handle portion 14 (one of which is seen in
[0076] The components and their layout inside the body portion 12 are not relevant to the present invention and may be entirely conventional. The body portion 12 is distinguished from a conventional hair dryer by the mounting structure 22 (
[0077] The body portion 12 and the handle portion 14 can together be used similarly to a conventional hair dryer as is shown in
[0078] As shown in
[0079] The mounting structure 22 has an opening 30 which is sized and shaped to accommodate the heating panels 20 of the handle portion 14. It can be arranged that the heating panels 20 engage each other in the closed (and attached) condition shown in
[0080] At each side of the opening 30 the mounting structure 22 has a protective formation 32. The protective formations 32 are made of a material which is a poor conductor of heat but which is also able to withstand the very high operating temperatures of the heating panels 20. In this embodiment the protective formations are made of plastic, specifically PEEK, but any suitable high temperature plastic or composite material could be used. It will be seen in
[0081] The protective formations 32 are continuous and extend beyond the ends of the opening 30 (and thereby beyond the ends of the heating panels) so as to overlie and obscure all of the side edges of the heating panels.
[0082] The protective formations 32 are fixed parts of the mounting structure 22, i.e. they are rigidly connected to the remainder of the body portion 12. The opening 30 is formed in a slide plate 34 which can move (in this embodiment slide) relative to the protective formations 32 and other fixed parts of the mounting structure 22.
[0083] The slide plate 34 has two cooperating formations in the form of projections 36 which are upstanding from the remainder of the slide plate 34. As seen in
[0084] To attach the handle portion 14 to the body portion 12, the arms 24 of the handle portion 14 are separated as shown in
[0085]
[0086] As seen in
[0087] Notwithstanding the cover 44, in this embodiment the handle portion 14 has female electric connectors and the body portion 12 has male electric connectors so as to reduce the likelihood that a user could open the cover 44 with a finger or tool and engage an electric connector.
[0088] Though not shown in the drawings, both of the arms 24 have electric connectors beneath a respective cover 44, and a housing 42 for cooperating electric connectors of the body portion 12 is located to both sides of the platform of the mounting structure 22.
[0089] Whilst it would be possible for the device to be battery powered, it will be seen from
[0090] The handle portion 14 is secured in the retained position of
[0091] To release the latch mechanism it is necessary for the user to press two opposing buttons 50 together, only one of which buttons is shown in
[0092] As can be seen from
[0093] As above indicated, in this embodiment the handle portion 14 can be attached to the mounting structure 22 in one of two ways. This avoids the user having to check the location of the projections 36 and recesses 40 and to orient the handle portion 14 accordingly each time the handle portion is attached to the body portion 12. The electric connectors on both of the arms 24, and the electric connectors in both of the housings 42, must therefore be identical, and connected to the same componentry, so that the device can operate regardless of the attached orientation of the handle portion. In an alternative embodiment only one of the arms 24 has recesses 40, and projections 36 are upstanding from only one side of the platform of the mounting structure 22, so that the user has to correctly orient the handle portion 14 relative to the mounting structure 22. In such embodiments the electric connectors for one arm 24 can differ from the electric connectors of the other arm 24 and the respective electric connectors can be connected to different componentry of the body portion 12.
[0094] When the handle portion 14 is being attached to the body portion 12 the arms 24 are pressed together by the user to hold the arms in contact with the mounting structure and to move the handle portion into the retained position of
[0095] As above stated, during use the user will normally grip the handle portion 14 adjacent to the hinge 52. It is expected that the user will similarly grip the handle portion 14 during attachment to the body portion 12. Notwithstanding an operating temperature of the heating panels of 200° C. of higher, the arms 24 can comfortably be gripped adjacent to the hinge because of the poor thermal conductivity of the arms and the distance between the heating panels 20 and the region which is gripped. In the attached position as shown in
[0096] Since the handle portion 14 may on occasions be attached to the body portion 12 with the heating panels 20 close to their operating temperature, the covering parts 48 of the arms (i.e. those parts of the arms which directly overlie the heating panels 20), have surface deformations, in this embodiment longitudinal ribs, so as to increase the surface area and thereby increase the dissipation of heat to the environment. The temperature of the covering parts 48 can thereby be reduced to make the arms 24 more comfortable to grip.
[0097] The heating panels 20 are preferably heated electrically by way of ceramic heaters in known fashion. Electric power is provided to the heaters by way of the power supply cable 46. In known fashion, one of the arms 24 has a controller (not seen) and control switches which are accessible to the user and by which the user can switch the power to the heating panels 20 on and off and can set the temperature of the heating panels 20. It can if desired be arranged that the heaters for the heating panels 20 are automatically switched off when the handle portion 14 is attached to the body portion 12 (although the user is expected normally to switch off the heaters before attempting to attach the handle portion). For example, the controller of the handle portion 14 can be configured to recognise when the electric connectors of the handle portion 14 and body portion 12 are connected and can switch off the power to the heaters if the user has not already done so.
[0098] In this embodiment the heating panels 20 are planar and can be pressed together so as to press the hair as it passes therebetween, with the pressure applied to the hair being determined by the user's grip upon the arms 24, as with conventional hair straighteners. In alternative embodiments the heating panels can be corrugated, and in yet other embodiments the heating panels 20 can be held slightly apart in their closed condition, to better provide the desired styling.
[0099] In an alternative embodiment the upper end (as viewed) of the handle portion may enter a recess in the body portion so that in the attached condition at least part of the heating panels lie inside the body portion. It can be arranged that the heating panels lie in the air path between the air inlet and the air outlet with a small gap therebetween which is sufficient to allow air to pass between the panels on its path from the air inlet to the air outlet. Accordingly, the heating panels of the handle portion act to heat the air as it passes through the body portion, perhaps instead of or in addition to separate or additional heating elements in the body portion.
[0100]
[0101] In common with the known automated hair curlers, the body portion 60 has a primary opening 66 (see also
[0102] Inside the curling chamber are an elongate member 70 and a rotatable element 72, as seen in
[0103] As is described in WO 2009/077747 in particular, at the end of a curling operation a section of hair is wound around the elongate member 70 in the curling chamber 62.
[0104] In this embodiment the elongate member 70 is perforated and the openings or perforations 80 are in communication with the air inlet 82. The body portion 60 includes an impeller and a continuous air path is formed from the air inlet 82 to the perforations 80 of the elongate member 70.
[0105] As seen in
[0106] The provision of substantially radial air flow in the curling chamber 62 is beneficial for a styling operation upon dry hair and also upon damp hair. In both cases the air is preferably heated by a heating element in the body portion 60 so as to heat (and dry, as applicable) the section of hair, it being recognised that the application of heat will assist the styling operation. Alternatively, the air blown through the perforations 80 can be substantially at ambient temperature and the hair can be heated by way of heating elements in the outer wall 76 and/or in the elongate member 70 (or the hair can be heated by a combination of these methods).
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[0108] As with the hair dryer of
[0109] The common housings 42 for the electric connectors enables the same handle portion 14 to be attached to the body portion 12 (for hair drying) and to the body portion 60 (for hair curling and/or hair drying/curling).
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[0111] To prevent the section of hair simply being twisted around the elongate member, and to retain the length of hair in the curling chamber, as the rotatable element rotates, a movable abutment is located adjacent to the free end of the elongate member 70. In addition to the above functions, the movable abutment 90 in this embodiment additionally functions to close off a large proportion of the secondary opening 86 so as to reduce the passage of air through the secondary opening during the styling operation.
[0112] To close more of the secondary opening the movable abutment 90 in this embodiment is formed in two separate parts and in alternative embodiments can be formed in more than two parts if desired. As seen in
[0113] It has been found that the rate of air flow through the open portion 92 is relatively slow and the open portion 92 does not prevent the desired substantially radial air flow from the perforations 80 to the perforations 84. Nevertheless, in alternative embodiments all (or substantially all) of the secondary opening 86 can be closed by the movable abutment if desired (for example by using multiple components similar to a camera shutter).
[0114]
[0115] The electric motor in the body portion 12 which rotates the impeller, and the electric motor(s) in the body portion 60 which rotate the impeller and the rotatable element 72 can be controlled totally from the controller in the handle portion 14 if desired. However, there is significantly more space to mount the printed circuit board (PCB) for the motor in the body portion 12/60 than in the handle portion 14 and it is expected that a separate PCB to control the motor(s) will be mounted in the body portion 12/60. The controller in the handle portion 14 is expected to have its own PCB which can communicate with the PCB in the body portion 12/60. Accordingly, all of the control functions for the hair straightener will be provided by the handle portion 14 whereas at least some of the control functions for the hair dryer and for the hair curler can be provided by the body portion 12/60. In any event, however, all of the user-actuatable controls for the hair dryer and the hair curler are mounted on the handle portion 14.
[0116] As above stated, it would be possible for a single motor in the body portion 60 to drive the impeller and also to drive the rotatable element 72. That is not preferred, however, firstly because of the significantly differing rotational rates of the impeller and rotatable element. Also, two separate motors allow the motor for the rotatable element to be stopped when all of the section of hair has been wound around the elongate member and the motor for the impeller to stop later on when the styling operation is complete.
[0117] The structure of the mechanical and electrical connections between the handle portion 14 and the body portion 12 is not critical to the present invention and many alternative structures to those which have been described can be used. In addition, the detailed structure and location of the electric connectors for power, and for control and/or information is also not critical to the invention and many different variants could be used.
[0118] In an alternative embodiment according to the second aspect of the invention, and which is not shown in the drawings, the curling chamber does not incorporate air flow. Accordingly, the body portion has a curling chamber but without an air inlet and without an impeller (and heater) for the air. Also, the elongate member and outer wall are not perforated. According to this aspect the device can comprise a handle portion 14 which can be releasably attached to a body portion having a curling chamber similar to the curling chamber described in WO2009.077747 or WO 2012/080751 for example.
[0119] It is preferably arranged that the rotatable element 72 should undertake a number of complete revolutions in each styling operation; the rotatable element 72 has a magnet 94 and a Hall effect sensor or the like can be used to detect the rotations of the rotatable element and communicate that to the controller so that the motor for the rotatable element can be activated and deactivated appropriately. Also, as described in WO 2012/080751, entanglement of the section of hair can be detected by an unexpected reduction in the rate of rotation of the motor driving the rotatable element, or by an increase in the electrical current drawn by that motor, both of which can be communicated to the controller to stop (and reverse) the rotatable element 72 as desired. If the body portion 60 has sensors to detect misplaced hair those sensors can communicate with the controller to prevent rotation of the rotatable element until the misplaced hair is removed.