EP0034770B1 - Permanent-wave curler - Google Patents

Abstract

Permanent wave roller having a rotation-symmetrical winding rod or winding tube and a hair fastening means, wherein the winding rod or winding tube has three segments adjoining one another in the direction of the axis of rotation, the middle segment (4) of which has the smallest outside diameter while the outer two segments (5, 6) are of different length and have a gradually increasing outside diameter, the enlargement of this outside diameter per unit of length increasing gradually in each case from the side adjacent the center segment (4) toward the associated roller end (FIG. 2).

Description

The invention relates to a permanent wave winder of the type defined in the preamble of claim 1.

Perm winders come in numerous sizes and shapes. In addition to simple cylindrical, rod or tubular permanent wave winders with cords or rubber bands as hair fasteners, spiral winders and flat winders are particularly known (see, for example, US-A-1 941 439 and US-A-2763270).

Spiral winders consist of a cylindrical winding rod or winding tube with a spiral recess formed in the outer jacket, into which the hair is inserted from the roots to the tips. With such spiral winders, in particular intended for long hair and to achieve soft waves, it is not possible to achieve satisfactory results with regard to a shapely appearance and the durability of the permanent waves laid with them. In addition, spiral winders are impractical to use.

Flat winders, on the other hand, predominantly have winding bars or winding tubes of the type mentioned at the outset, the middle segment being arranged symmetrically between two outer segments of the same length and the two outer segments being conical with the same pitch. When using such flat curlers, the hair is usually rolled up from the tip to the base, the tip coming to rest in the region of the middle segment which has the smallest outside diameter, in order thereby to obtain a fixed lace frill and a weaker neck frill. Apart from the fact that the permanent waves obtained in this way are often too sharp, no spiral winding can be achieved with such flat winders, since winding from the tip to the tip is not possible due to the too strong conicity and / or the neck curl is too weak or too strong frill leads.

Both types of curlers also have in common that their dimensions are not adapted to the various hair types and / or hair lengths that occur, so that in individual cases there is too little space on the scalp to accommodate the desired number of curlers and / or a selection the winder depending on the desired perm or hair shape before treatment.

The invention has for its object to develop a perm winder of the type mentioned in such a way that it is more versatile and ensures a good shape and durability of the perm.

To solve this problem, the characterizing features of claim 2 are provided.

The invention has the advantage that, due to the special shape of the permanent wave winder, the hair can be curled up in the manner customary in flat winders as well as in the manner customary in spiral winders. It is also advantageous that due to the asymmetrical arrangement of the middle segment when the hair is rolled in at one end or the other of the winder, the length and / or hair structure present in the individual case can be optimally taken into account. It is therefore possible to create fixed frills and weaker frills or vice versa, and vice versa, as well as spiral waves by arranging the winder in different positions to the shape of the head.

In a particularly expedient embodiment of the invention, a set of several, different, preferably between 30 and 140 millimeter long permanent wave winders is provided, in which the three segments each have lengths, outer diameters and outer diameter increases per unit length measured according to the typical hair lengths and / or hair structures. This ensures that a sufficient number of different curlers are always available and can be combined in the hairstyle according to the needs of the individual case.

When the permanent wave winder according to the invention is used, a very durable, elastic permanent wave is obtained which bulges the hair and thereby gives it sufficient fullness, even in cases in which previously known permanent wave winders fail. The hairstyle gains more volume in appearance with a reduced frizzle, even with difficult hair, which, for example due to chemical color changes, has no inherent elasticity.

• Fig. 1 eine Seitenansicht des erfindungsgemäßen Dauerwellenwicklers;
• Fig. 2 einen Längsschnitt durch den Dauerwellenwickler nach Fig. 1; und
• Fig. 3 eine Vorderansicht auf den Dauerwellenwickler nach Fig. 1 nach Entfernung des Klemmbügels.

The invention is explained in more detail below in connection with the accompanying drawing of an embodiment. Show it:

• Fig. 1 is a side view of the permanent wave winder according to the invention;
• FIG. 2 shows a longitudinal section through the permanent wave winder according to FIG. 1; and
• Fig. 3 is a front view of the perm winder of FIG. 1 after removal of the clamp.

The permanent wave winder 1 according to FIGS. 1 to 3 contains a rotationally symmetrical winding tube 2 with a rotation or longitudinal axis 3. The winding tube has three segments which adjoin one another in the direction of the longitudinal axis 3, namely a central segment 4 and two outer segments 5 and 6. The central segment 4 has the smallest outside diameter, while the outside diameters of the two outer segments 5 and 6 each come from the side with which the segments 5 and 6 adjoin the middle segment 4 and on which they have the same outside diameter as the middle segment The ends of the winding tube 2 gradually become larger. The two outer segments 5 and 6 are of different lengths, so that the central segment 4, as clearly shown in FIG. 1, is arranged asymmetrically between the outer segments 5 and 6, ie the two outer sections 5 and 6 are not mirror-symmetrical.

The two outer segments 5 and 6 are also essentially conical. However, the diameter of these segments 5 and 6 does not increase, as would be the case with an exact cone shape, which is indicated by dashed lines 7 and 8, per unit length in each case in constant steps, but from the side bordering the central segment 4 to the outer ends of the perm winder 1 in gradually increasing steps. This causes the outer ones to hang. Surface lines of segments 5 and 6, as exaggerated in FIG. 1, are slightly concave with respect to lines 7 and 8 obtained with an exactly conical arrangement. This has the particular advantage that the hair can be rolled up spirally from the outside in and vice versa from the inside out without losing its hold on the curler or tipping away the upper layers of hair because they turn out too loose, as is the case with one purely conical formation of segments 5 and 6 would be the case.

The lengths of the two outer segments 5 and 6 are in a ratio of at least 2: 1. These dimensions have proven to be particularly advantageous with regard to the various applications of the permanent wave winder, which is characterized above all by the fact that the winding process is started or ended at the outer end of the long or short segment 6 or 5 in order to achieve different results, or the tip can be wound onto one or the other segment 5 or 6.

The outer diameter of any outer segment is at some point - viewed in the direction of the longitudinal axis 3 - about one to at most three millimeters smaller than the outer diameter measured at the same point with an imaginary conical configuration of the two outer segments 5 and 6. In other words, the The distance between the two lines 6 and 8, which correspond to the imaginary conicity, from the actual lateral surfaces of the segments 5 and 6 at no point is greater than about three millimeters, the concavity should be more pronounced the thicker the winder. This prevents the hair from sliding down along the concave-conical segments 5 and 6. The taper or concavity of the outer surface of the winding cylinder 2 is also relatively small and, for example, so small that the largest outer diameter of the two outer segments 5 and 6 is at most about eight millimeters larger than the outer diameter of the central segment 4, which is of length and Thickness of the winder depends. This ensures that there are no sharp permanent waves due to large diameter differences along the permanent wave winder 1 and permanent waves are obtained, the frill of the approach to the tip (or vice versa) is evenly firmer.

A large number of openings 9 are provided in the outer surface of the winding tube 2, which promote the drying process and the escape of residual liquid or residual moisture.

At the outer ends of the two outer segments 5 and 6 there is in each case a ring section 10 which is narrow or short in comparison to the segments 5 and 6 and which has a number of ring-shaped elongated holes 11 1, the longitudinal axes of which are arranged perpendicular to the longitudinal axis of the winding tube 2 are. Holding needles can be inserted through the elongated holes 11. The ring sections 10 are conical or corresponding to the segments 5 and 6, although the pitch of the cone or the increase in outer diameter per unit length is smaller than in the area of the segments 5 and 6.

As a hair fastening center), a clamping bracket 12 is provided which extends with its central section in the longitudinal direction of the winding tube 2 and has two right-angled end sections 13 and 14 which project through a fastening pin 15 which projects through the winding tube 2 and is supported in it by means of two bearings 16 being held. Here, one end of the fastening pin 15 is permanently but movably connected to the one bent end 13 of the clamping bracket 12 and provided with a handle 17, while the other end of the fastening pin 15 has a lock 18, which through a corresponding opening in the other bent end 14 of the clamping bracket 12 protrudes and, depending on the rotational position, either allows the end 14 to be stripped off the fastening pin 15 or the pushed-on end 14 is locked in the position shown in FIG. 2. When the end 14 is released, the entire clamping bracket 12 can be pivoted away from the winding tube 2 due to its elasticity and the loose suspension at the end 13, so that it is exposed for winding up the hair.

From the outside, a relatively narrow or short retaining ring 19 borders on the two ring sections 10, which has a sawtooth-shaped toothing 20 on its circumference according to FIG. 3, which serves to support the central section of the clamping bracket 12 and also, in particular, in the case of small sizes the handling of the perm winder 1 facilitated.

The winding tube 2, the clamping bracket 12 and the mounting pin 15 are preferred wise from wood or plastic. The three segments 4, 5 and 6, the two ring sections 10 and the two retaining rings 19 form a coherent part.

According to the invention, a set of permanent wave winders according to FIGS. 1 to 3 is also preferably produced or used, the three segments 4, 5 and 6 having lengths and outer diameters dimensioned according to the hair length and / or hair structure, and the increase in the outer diameter per unit length accordingly the hair length and / or hair structure can be changed.

Further possible modifications of the permanent wave winder 1 described are that the segment 4 is not only a very narrow transition zone between the two segments 5 and 6, as can be seen from FIG. 1, but is rather long in the direction of the longitudinal axis 3 and continuous receives constant outer diameter. The length of the segment 4 should, however, be at most about twelve millimeters. Instead of the clamping bracket 12 known rubber bands, cords or the like can also be provided for hair attachment. Furthermore, the circumferential shape and the length of the ring section 10, measured in the direction of the longitudinal axis, can be varied.

The slopes of lines 7 and 8, which represent an exact cone shape, are expediently different. The lengths, outside diameters and outside diameter increases per unit length of the permanent wave winders according to the invention, measured depending on the hair length and / or hair structure, preferably provided, are shown in the table below, in which three examples of known permanent wave winders are given at the end:

The table shows that in the permanent wave winders according to the invention, much finer gradations are provided than in known comparable permanent wave winders.

Claims (8)

1. A permanent wave roller comprising a rotationally symmetrical roller bar or tube member and a hair fixing means, wherein the roller bar or tube member has three segments which are mutually adjoining in the direction of the axis of rotation and of which the middle segment is of the smallest outside diameter while the outside diameters of the two outer segments, which are of different lengths, each progressively increase from their side adjoining the middle segment, towards the associated end of the roller, characterised in that the ratio of the lengths of the two outer segments (5, 6) relative to each other is at least 2:1.

2. A permanent wave roller according to claim 1 characterised in that the increase in the outside diameters of the two outer segments (5, 6), per unit of length progressively increases respectively from the side adjoining the middle segment (4) towards the associated end of the roller.

3. A permanent wave roller according to claim 1 or claim 2 characterised in that, with an overall length of the three segments (4, 5, 6) of 30 to 140 millimetres, the outside diameter of any outer segment (5, 6), at any point, is smaller at most by about one to at most three millimetres than the outside diameter occurring at that point, with an imaginary conical configuration of the two outer segments (5, 6).

4. A permanent wave roller according to one of claims 1 to 3 characterised in that the largest outside diameter of the two outer segments (5, 6) is at maximum larger by about eight millimetres than the outside diameter of the middle segment (4).

5. A permanent wave roller according to one of claims 1 to 4 characterised in that, with an overall length of the three segments (4, 5, 6) of 30 to 140 millimetres, its outside diameter is from four to twenty millimetres.

6. A permanent wave roller according to one of claims 1 to 5 characterised in that adjoining the outer end of at least one outer segment (5, 6) is an annular portion (10) whose outside diameter at the side adjoining the adjacent segment (5, 6) is equal to the outside diameter of the outer end of said segment and from there increases towards the associated end of the roller progressively but less steeply than in the region of the outer end of the adjacent segment (5, 6).

7. A permanent wave roller according to claim 6 characterised in that the increase in the outside diameter of the annular portion (10) per unit of length is smaller at least in the part adjoining the adjacent segment (5, 6) than at the outer end of said segment (5, 6).

8. A permanent wave roller according to claim 6 or claim 7 characterised in that the outside diameter of the annular portion (10) increases continuously.

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