HK1140649B - Volumiser attachment and hair shaping device with such an attachment - Google Patents

Description

The invention relates to a hair volume device for connection to an air stream generating device, such as an air curler, with a volume unit, whereby the volume unit is separated by its hair shaping fingers by an angular piece from a coupling section to connect the hair volume device to the device.

A volume shaper is a device that uses a stream of air, preferably a hot air stream, to introduce volume into the hair to be shaped. Typically, such volume shapers are attachments that can be placed on a device that generates a stream of air, such as an air curler or a hair dryer. Such a volume shaper has a clutch to mechanically connect it to the handheld device providing the air flow. Consisting of the clutch stem, which is typically formed as a hair shaping ring, the actual volume shaper units are located along a number of lengths, hence are of concave shape and complement the human head of the oil shaper.

It has been shown that a volume shape of hair can be improved when the volume unit is driven oscillating around its longitudinal axis. A hair shaper with such a volume shaper is known from GB 2 374 801 A. The device providing the air flow is a conventional hair dryer with the volume shaper attached to its air outlet. In this pre-known volume shaper, the hair shaper fingers extend parallel to the length of the hair shaper. Outside the air flow channel, the hair dryer has an electric motor drive unit with a drive wheel that loads a hair shaper inside the rotor shaper's air outlet.

The arrangement made known by GB 2 374 801 A1 cannot be applied to such volume supports which are made as angle supports, whereby the plane of the coupling for the connection of such a supports to the air supply device and the plane of the actual volume unit are arranged at right angles to each other.

The present invention is based on the present state of the art and is therefore intended to develop a volume-controller assembly in such a way that the whole or a part of the volume-controller can be driven by an oscillating rotation.

This task is accomplished in accordance with the invention by means of a hair volume-scaling device, of the type described at the outset, in which the volume unit of the hair volume-scaling device is rotatably stored in whole or in part and the hair volume-scaling device is designed to drive it by means of a rotatable storage drive shaft located within the clutch section with a coupling to connect the drive shaft to a rotating drive shaft in the device, which drive shaft of the device carries an eccentric axis of the drive shaft at its rotating end, a driving force which drives the drive shaft or a rotating axis of the drive shaft in the same direction, or a rotating oscillating force which drives the drive shaft or a rotating axis of the drive shaft in the same direction,the axis of rotation of the volume unit or of the rotating storage area thereof and the axis of rotation of the drive shaft are angular, in particular at right angles to each other. This hair volume unit has a drive shaft located within the clutch section. Consequently, it is possible to drive part of the hair volume unit. The clutch ring as such, together with the angle piece to the rotating storage unit or the rotating storage area of the same stator, forms the stator. Since this hair volume unit is designed as a drive shaft, it is necessary to convert the force applied to the rotating motion of the drive shaft into a rotating motion at this angle. This force will be applied simultaneously with the rotation of the drive unit to convert the force necessary to the rotational motion of the drive shaft.The power conversion can be effected, for example, by the conversion of the drive element into a radially outward-curved end section of the drive shaft, which is curved in a longitudinal axis around an axis of rotation of the force perpendicular to the axis of rotation of the drive shaft. The measure of the oscillating rotational motion is defined in this design by the measure of the amplification and thus the displacement of the drive element from the axis of rotation of the drive shaft.

A preferred design is that the force transducer includes a cardanally-stacked transducer element, thus reducing frictional wear of the parts moving against each other.

The following is an example of the invention, illustrated by reference to the accompanying figures: Figure 1: a schematic representation of a hair volume device for connection to an air stream generating device,Figure 2: an enlarged schematic representation of the force transfer of the hair volume device in Figure 1 andFigure 3: a 90° rotated representation of the units in Figure 2.

A hair curler set 1 is made as an angle set and has a non-detailed clutch ring 2 to connect the hair curler set 1 to a handheld device 3 designated in Figure 1 with reference 3 and made as an air curler in the example shown. The handheld device 3 has an unmarked fan to produce an air flow. In the housing of the handheld device 3 heating registers 4 are placed to heat the air flow generated by the air flow. The air flow direction is indicated by a block arrow. The head unit 3 is also equipped with an electromotive drive with 5 drives 6, which opens in the area of the hand air flow 6 to 7 the end of the motor 6 to the rear of the hand drive.

In the case of the hair-volume device 1, the actual volume unit 9 separated by an angular piece from the clutch ring 2 is divided with its hair-forming fingers 10 into an oscillating rotatable storage area 11 and a ring section 12 concentrically enclosing the rotatable area 11. Both the area 11 and the ring section 12 bear hair-forming fingers 10. The rotatable storage area 11 of the volume unit 9 is not shown in detail.The block arrow above the hair volume device 1 shown in Figure 1 represents the mounting movement of the hair volume device 1 to connect it to the device 3. The drive shaft 13 of the hair volume device 1 is driven by a rotator when the drive device 5 of the device 3 is in operation. At its end opposite the clutch 14, the drive shaft 13 has an eccentrically rotating drive element arranged on its axis, which is executed at 15 turns in the drive shown as an example. The drive 15 is a rotator in which the drive 9 is rotated in a circular motion, and a rotator in which the drive 13 is rotated in a circular motion, which is rotated in a circular motion, which is rotated in the direction of the rotor.The drive shaft 13 shall, under interlocking of the implement element 16, convert the rotational motion of the drive shaft 13 into an oscillatory rotational motion of the drive shaft 17 connected to the area 11.

The hair volume unit 1 is airtight in its entirety. The air stream from the unit 3 through the clutch ring 2 of the hair volume unit 1 is fed to the volume unit 9. The floor of the volume unit 9 and individual hair shaping fingers 10 have openings for the release of the air stream. The floor of the area 11 also has openings for the entry of a partial air stream and its supply to the hair taken up with the hair shaping fingers 10 of the area 11.

The design and storage of the transformer 16 is described below with reference to Figures 2 and 3. The transformer 16 is housed in a holder 18. For this purpose, the transformer 16 in the example shown has ball-shaped axle 19, 19.1 which intervene in the corresponding bearings of the overall U-shaped holder 18. The drive shaft 15 is, as can be seen from Figure 2, inclined with respect to the axis of rotation of the drive shaft 13 and interposes into a correspondingly inclined bore 20 of the transformer 16 designed to accommodate the drive shaft 15. The latter 18 is connected to the rotor of the drive shaft 17 and some of the drives of the drive shaft 17 can be housed within the volume of the storage shaft 1.When the drive shaft 13 is operated in the arrow direction shown in Figure 2, the rotational motion of the drive shaft 13 is divided by the cardan storage of the transformer 16 into two oscillating rotations around two cardan axes, namely the DH and Dv axes described in Figure 3. The DH axis is the axis of the transformer 16 around the axis of the two axes 19. 19.1.This motion is broken down by the prescribed cardan suspension of the transformer 16 into an oscillating rotation of the transformer 16 around the DH axis and a rotation of the holder 18 and thus the drive shaft 17 and the associated area 11 of the volume unit 9 (rotation axis Dv).

As can be seen from the figures, the transformer 16 and the transformer 16 bearing holder 18 are located within the hair volume insert 1 and separated from the side walls, leaving a sufficient flow area for the air flow to be supplied to the volume unit 9. The ejection shaft 17 is stored in a storage area 21 in the illustrated embodiment in the area of the holder 18. The storage area 21 is connected to the wall of the insert 1 by means of spokes 22. The spokes spacing is also designed accordingly to provide a sufficient flow area.

In the position of intervention between drive shaft 13 and its drive shaft 15 and the implement element 16 shown in Figure 2, the longitudinal axis of drive shaft 15 intersects the two rotating axes DH, Dv at their virtual intersection.

The invention has been described by means of an example of an embodiment, with reference to the figures.Without leaving out the scope of the claims, it follows that a professional may, without having to perform the invention explicitly, make further arrangements to realize the invention.

List of reference marks

1 hair volume insert2 clutch ring3 handheld device4 heating register5 drive device6 drive shaft7 mouthpiece8 clutch 9 volume unit10 hair shaping finger11 area12 ring section13 drive shaft14 clutch 15 drive pins16 implement element17 drive shaft18 holder19, 19' axle20 housing21 storage unit22 spokesHD axleDv axle

Claims (6)

1. Hair volumiser attachment for connection to a device (3) generating an airflow, such as an air curler, with a volumiser unit (9), wherein the volumiser unit (9) with its hair shaping fingers (10) is spaced by an angle piece from a coupling section (2) for connecting the hair volumiser attachment (1) to the device (3), characterised in that all or an area (11) of the volumiser unit (9) of the hair volumiser attachment (1) is rotatably supported and the hair volumiser attachment (1) has, in order to drive the same, a rotatably supported drive shaft (13) arranged within the coupling section (2) with a coupling piece (14) for connecting the drive shaft (13) to a rotatably driven shaft (6) in the device (3), said drive shaft (13) of the attachment (1) carrying, at its output end, a drive element (15) arranged excentrically to the rotation axis of the drive shaft (13), said element, for driving the volumiser unit (9) or the area (11) of the same, engaging a recess (20) of a force converter (16, 18) converting the rotary driving motion of the drive element (15) to an oscillating rotary motion of the volumiser unit (9) or of the area (11) of the same, wherein the rotation axis of the volumiser unit (9) or of the rotatably supported area (11) of the same and the rotation axis of the drive shaft (13) are arranged at an angle, especially right angled to each other.
2. Hair volumiser attachment according to claim 1, characterised in that the force converter has a gimbal-mounted conversion element (16) and the rotation axes (DH, Dv) of the two gimballed pivoting axes of the conversion element (16) are arranged so as to intersect virtually in one point, the conversion element (16) is carried by a holder (18) in which the conversion element (16) is pivotably supported around one of the two rotation axes (DH) of the gimbal mounting and the holder (18) is rotatably supported around the other rotation axis (Dv) of the gimbal mounting and connected to the volumiser unit (9) or the area (11) of the same.
3. Hair volumiser attachment according to claim 2, characterised in that the rotation axes of the two gimballed pivoting axes (DH, DV) of the conversion element (16) enclose a right angle.
4. Hair volumiser attachment according to one of the claims 1 to 3, characterised in that the conversion element (16) carries diametrally opposed integrally formed stub axles (19, 19.1) each engaging a bearing aperture of the holder 18 which is U-shaped for holding the conversion element (16).
5. Hair volumiser attachment according to one of the claims 1 to 4, characterised in that the drive element (13) arranged excentrically to the drive shaft (13) is a drive piece (15) whose longitudinal axis is inclined to the rotation axis of the drive shaft (13) and, via an offset, is connected to the drive shaft (13) and that the drive piece (15) engages a borehole (20) of the conversion element (16) which is suitably inclined in respect of the rotation axis of the drive shaft (13).
6. Hair volumiser attachment according to claim 5, characterised in that the longitudinal axis of the drive piece (15) intersects the virtual intersection point formed by the rotation axes (DH, Dv) of the gimbal mounting of the conversion element (16).