EP1079958B1 - Electric razor - Google Patents

Abstract

A shaving apparatus includes a short-hair cutter unit and a long-hair cutter unit. The long-hair cutter unit includes an outer cutter with slits and segments and an inner cutter that is movable in a vertical direction by means of a carrier structure. The outer cutter has comb elements that are associated with the comb elements of a threader comb. The comb elements of the threader comb are movable jointly with the comb elements of the outer cutter in a vertical direction.

Description

The invention relates to a dry shaver.

From DE 197 22 149 A1 a dry shaver is known, in which on the long sides of the shaving head frame having combing elements and attached inside the shaving head frame two short hair cutting systems and two long hair cutting systems are arranged floating. The U-shaped, slots and webs having, upper knife of the two long hair cutting systems are each along one the outside of a shaving head system facing the shaving head frame. The slots which extend transversely to the longitudinal direction of the upper knife are wedge-shaped designed with a larger opening width on the facing the shaving head frame Outside and a smaller opening cross-section on the top knife of the inside of the short hair cutting system. Such a shape of the Slits in the upper knife only allow hair to penetrate the Cutting area in a direction of motion leading from the shaving head frame to the short hair cutting system, but not in the opposite direction of movement. To the Cutting long and short hair in the usual way with dry shavers opposite directions of movement taking place is therefore in the known Dry shaver on each outside of a shaving head system facing the shaving head frame a long hair cutting system is provided.

From DE 37 43 181 A1 it is known, a short hair cutting system of a dry shaving apparatus to assign two hair trimmer systems designed as trimmers to one in opposite Directions of movement of the shaving head over the skin both long and also to cut short hair. The one with sharp edges for trimming purposes Cutting teeth of the respective trimmer is a skin guide element or Skin tensioning element assigned at a certain distance. Given by this Distance is ensured that the cutting teeth come into contact with the tight skin, to cut longer hair on the surface of the skin. Based on usage Such a dry shaver can be seen that the upstream skin guide elements do not protect the skin from it with the sharp-edged cutting edges of the Cutting teeth of the intended trimming devices come into contact. injury the skin is therefore not excluded.

• einem einzigen Kurzhaarschneidsystem;
• auf einer der Außenseiten ist seitlich neben dem einzigen Kurzharschneidsystem ein einziges Langhaarschneidsystem angeordnet,
• das Langhaarschneidsystem besteht aus einem Obermesser und einem diesem zugeordneten Untermesser und ist mittels eines Trägerelementes in vertikaler Richtung bewegbar
• das Obermesser weist Kammelemente auf;
• den Kammelementen des Obermessers ist ein Kammelement aufweisender Einfädelkamm zugeordnet,
• die Kammelemente des Einfädelkamms sind gemeinsam mit den Kammelementen des Obermessers in vertikaler Richtung bewegbar.

From DE 196 33 824 C1 it is known to assign a resiliently mounted protective element to an adjustably mounted trimming system such that the cutting edge of the trimmer's cutting teeth can be covered by the protective element in a position of use. This document is a description of the closest prior art and discloses a dry shaver with the following features:
a housing

• a single short hair trimmer system;
• on one of the outer sides, a single long hair cutting system is arranged on the side next to the single short harp cutting system,
• the long hair cutting system consists of an upper knife and a lower knife assigned to it and is movable in the vertical direction by means of a carrier element
• the upper knife has comb elements;
• the comb elements of the upper knife are assigned a threading comb having a comb element,
• the comb elements of the threading comb can be moved in the vertical direction together with the comb elements of the upper knife.

DE 82 27 546 U1 describes a dry shaving apparatus with a housing and a Shaving head frame known in which a single short hair cutting system and a single in essential U-shaped long hair cutting system on an outside of the Short hair cutting system is provided.

The object of the invention is to provide an inexpensive dry shaver with which it is guaranteed that even with opposite directions of movement of the dry shaver over the skin area to be shaved in each direction of movement both longer Hair as well as short hair can be cut without having to put up with skin irritation have to.

This object is achieved according to the invention by the features of claim 1.

A major advantage of the invention is a reduction in the number of cutting systems to a minimum while ensuring optimal use of the different trained cutting systems in the respective directions of movement of the shaving head the dry shaver over the skin area to be shaved. An optimal feeding of long hair and excellent skin protection in the respective directions of movement the essentially U-shaped upper knife over the skin is about the combination of the two long sides of the upper knife against its long side walls protruding comb elements with the assigned to these comb elements reached further comb elements, which are provided on the threading combs.

This provided on the two long sides of the long hair cutting system as a hair threading device acting comb elements enable an arrangement of the long hair cutting system and short hair cutting system on a substantially common horizontal Layer for practicing a gentle combination shave.

Starting from this horizontal plane, which is particularly useful for a combination shave The advantage is guaranteed by the floating arrangement of the long hair trimmer system all comb elements in the shaving head frame, ensuring that they are on both sides skin-protected combing and cutting of long hair a continuous adjustment of the long hair cutting system to the contours of the skin area to be shaved. This applies to shaving heads of dry shavers, whose short hair cutting system in the shaving head frame is both immovable and floating, equally.

According to a structurally simple embodiment of the invention, the threading combs are provided on a support element of the U-shaped upper knife.

According to a very inexpensive embodiment of the invention, the threading element is Long hair cutting system as a preassembled assembly with the threading combs having carrier element can be coupled. The inexpensive advantage arises under other through the use of an already existing or otherwise usable complete long hair cutting system consisting of upper knife, lower knife with coupling piece as well as lower knife pressure spring - see DE 43 12 060 C1 - in combination with a threading comb carrier element by means of which the common floating Movement in the shaving head frame can be produced.

The threading combs are preferably two parallel to one another in the longitudinal direction Walls formed with molded comb elements.

According to a preferred embodiment of the invention, the walls are in their longitudinal direction lying ends each connected by means of a transverse wall. In a further embodiment In this embodiment, the long-hair cutting system comprising threading elements provided between the parallel walls. The shell-like housing shape after this Embodiment is particularly suitable for receiving and attaching a complete Long hair trimmer system equipped with two rows of threading elements.

The housing sleeve, which is opposite to the two rows of ridges, enables simple way the coupling of the lower knife of the long hair cutting system over a under the action of a spring element standing coupling element with a drive element of the electric drive of the dry shaver.

In order to ensure an excellent interaction of the long hair cutting system, Comb elements and short hair cutting system are on the support element and the Shaving head frame interacting guide elements for controlling the vertical mobility the long hair cutting system and the comb elements.

According to a preferred embodiment of the invention, the carrier element is against the Spring force movable by at least one spring element. After a simple and therefore Inexpensive embodiment is the spring element in an electric drive provided with the lower knife of the long hair cutting system coupling element.

According to a further embodiment of the invention, the spring element is between the carrier element and shaving head frame provided.

Excellent skin protection is achieved according to the invention in that the outer Contour of a respective comb element of a threading comb into the outer contour of the each adjacent comb element of the upper knife passes. After another Embodiment of the invention provides that the comb elements of the threading comb are provided below the comb elements of the upper knife. After another Advantageous embodiments of the invention are the comb elements of the threading comb in front of the comb elements of the upper knife.

Skin protection is enhanced according to the invention in that the comb elements of the Threading comb rounded off in the area of their surfaces that come into contact with the skin are. Another advantage results according to the invention by a stepless transition the outer surfaces of the comb elements of the threading comb to the comb elements of the Upper knife.

According to a preferred embodiment of the invention, the threading comb is with a wide comb teeth and in a further embodiment of this embodiment Provide the upper knife with a narrow comb serration of the threading elements. This training the comb teeth and their assignment to one another in connection with the Floating mobility of the long hair cutting system an optimal detection, alignment and combing long hair into the cutting area of the long hair cutting system, the skin protection by rounding off all edges of the in contact with the skin coming comb elements is ensured.

In a further embodiment of a dry shaving apparatus according to the invention, that the long hair cutting system in two opposite positions can be switched on and switched off in an intermediate position. Preferably at such an embodiment, the long hair cutting system in a substantially the height of the short hair cutting system is in a floating position. On Another advantage arises in such an embodiment in that the long hair cutting system switchable in a position opposite to the short hair trimmer system and can be locked. The commissioning of the equipped with comb elements Long hair cutting system according to the invention in two opposite to each other On the one hand, positions ensure an optimal combination shave of the floating Long hair cutting system with the short hair cutting system and in the opposite Position a shave that cannot be affected by the long hair trimming system with the Short-hair cutter. Such a shave is of sluggishness for more or less long Beard hair desired to close hair outside of a trimming contour shorten the remaining beard. Should such a shave one or more long hair of the beard wearer get into the long hair trimming system, then this becomes Cut hair through the long hair cutting system in operation in this position. A clamping and thus a painful plucking of the hair is consequently avoided.

In order to enable the trimming of hair contours with the dry shaver a trim system is also provided on the housing.

Fig. 1

eine perspektivische Darstellung eines Trockenrasierapparates mit abgenommenem Scherkopf sowie mit einem Teilschnitt durch eine Gehäusewand sowie durch ein Trimmsystem

Fig. 2

eine Explosionsdarstellung der oberen Hälfte eines Trockenrasierapparates mit abgenommenem Scherkopf,

Fig. 2a

eine perspektivische Darstellung des Steuerelementes nach Fig. 2, mit einer Sicht auf die Innenseite,

Fig. 3

eine Explosionsdarstellung der Bauelemente eines Langhaarschneidsystems,

Fig. 4

eine perspektivische Darstellung eines Trägerelementes mit darin angeordnetem Langhaarschneidsystem sowie Teilschnitt durch den Befestigungsbereich des Langhaarschneidsystems im Trägerelement,

Fig. 5

einen Schnitt durch das Langhaarschneidsystem und das Trägerlement,

Fig. 6

eine perspektivische Darstellung eines Trägerelementes mit eingebautem Langhaarschneidsystem sowie Kupplungselement des Untermessers,

Fig. 7

eine Seitenansicht auf eine Stirnseitenwand, auf ein Kurzhaarschneidsystem sowie Trägerelement in einer unteren Stellung,

Fig. 8

eine Seitenansicht auf eine Stirnseitenwand, auf ein Kurzhaarschneidsystem sowie Trägerelement in einer oberen Stellung.

An embodiment of the invention is shown in the drawing and is explained in more detail below. It shows:

Fig. 1

a perspective view of a dry shaver with removed shaving head and with a partial section through a housing wall and a trim system

Fig. 2

an exploded view of the upper half of a dry shaver with the shaving head removed,

Fig. 2a

3 shows a perspective view of the control element according to FIG. 2, with a view of the inside,

Fig. 3

an exploded view of the components of a long hair cutting system,

Fig. 4

2 shows a perspective illustration of a carrier element with a long hair cutting system arranged therein and a partial section through the fastening area of the long hair cutting system in the carrier element,

Fig. 5

a section through the long hair cutting system and the support element,

Fig. 6

a perspective view of a carrier element with built-in long hair cutting system and coupling element of the lower knife,

Fig. 7

a side view of an end wall, on a short hair cutting system and support element in a lower position,

Fig. 8

a side view of an end wall, on a short hair cutting system and support element in an upper position.

1 shows a dry shaving apparatus TR, in the housing 1 of which an actuation switch 2 are adjustable with a locking switch 80 and a trimming system 3. The Trimming system 3 consists of a fixed toothed comb and an oscillating one driven toothed blade. The trim system 3 is, for example, above the actuation switch 2 provided on the housing 1 pivotable.

The bottom knife 6 of a short hair cutting system that runs parallel to the upper housing side 5 K and the coupling element under the action of a spring element 7 8 for the long hair cutting system 23 - see Fig. 2 - are provided with one in the housing 1 electric drive coupled.

The housing 1 is composed, for example, of two housing shells 81, 82. The Shaving head frame 10 - see Fig. 2 - is on the upper housing side 5 between two The end walls 83, 84 provided on the housing 1 can be fitted and with the housing 1 coupled. 1 and FIG. 2 show a partial section above the actuation switch 2 through the housing shell 82 of the housing 1 and through the trim system 3 such that one guided in the housing shell 82 and protruding from the upper housing side 5 Ram 44 is visible. The plunger 44 is over a control plate 43 and other controls coupled to an operating switch, for example the operating switch 2, around the carrier element 24 with the long hair cutting system 23 provided therein vertical direction - arrow direction A - in at least two different positions Short hair cutting system K to adjust.

Further details of the design of the shaving head of the dry shaving apparatus TR in particular of the shaving head frame 10 which can be placed on the upper housing side 5 with the short hair cutting system K provided therein, as well as long hair cutting system 23 and carrier element 24 result from the exploded view according to FIG. 2 and are shown in FIG following explained in more detail.

The upper knife 11 of the short hair cutting system K assigned to the lower knife 6 exists for example from a shaving foil that is arched in the shaving head frame 10 is. The shaving head frame 10 with the upper knife 11 and the long hair cutting system 23 is by means of a locking device provided on the end faces of the housing 1 13 detachably coupled to the housing 1.

One from an upper knife 18, a lower knife 19 - see FIG. 3 - and a coupling element 20 formed long hair cutting system 23 can be used in a carrier element 24 and held there by a fastener 21 and 22. The carrier element 24 forms with the long hair cutting system 23 together a structural unit such that the carrier element 24 and long hair cutting system 23 together in the vertical direction - arrow direction A - are moveable back and forth. For this purpose, for example, on the transverse walls 25 and 26 guide grooves 31, 32 - see FIG. 6 - and on the inner side walls 16 and 17 the end faces of the shaving head frame 10 guide elements 27, 28 are provided. The one in vertical Direction - arrow direction A- provided floating movement of the carrier element 24 and long hair cutting system 23 is by the engagement of the control cams 37 and 38 in the controls 39, 40 are controlled by the intended length of the vertical Direction extending control elements 39, 40 formed as a control groove. In the Embodiment according to FIGS. 1 and 2 are carrier element 24 and long hair cutting system 23 against the spring action of the spring element 7 in the vertical direction - arrow direction A - back and forth.

Such a floating movement of carrier element 24 and long hair cutting system 23 can also be effected by another spring arrangement, e.g. through the arrangement of two spring elements, which are on the one hand on a wall of the shaving head frame 10 and on the other hand support on a wall of the carrier element 24 - not shown -. To the walls 33 and 34 of the carrier element 24 running in the longitudinal direction are comb elements 35 and 36 with a coarse comb teeth compared to the fine comb teeth of Comb elements E - see FIG. 3 - of the long hair cutting system 23 are provided. To the Walls 33 and 34 are control cams 37 and 38 - see Fig. 5 - formed, in cooperation with control elements 39 and 40, the carrier element 24 with the long hair cutting system 23 controlled and transported in one of the intended operating positions are - see Fig. 7 and Fig. 8 - via a pivotally mounted control element 72 and the movably mounted plunger 44 by actuating the with the plunger 44 coupled actuation switch 2.

FIG. 2a shows the side of the control element facing the carrier element 24 in the assembled state 72. There is one at each of the opposite ends of the control element 72 Control cams 50, 51 formed. That is by means of a wedge-shaped bearing 52 Control element 72 on a likewise wedge-shaped bearing 47, which on the inner wall the shaving head frame 10 is provided, pivotally mounted to by means of engagement of the control cam 51 into the slit-shaped control element 42, the carrier element 24 with mounted long hair cutting system 23 in an arrow direction A, accordingly to adjust the actuation movement of the actuation switch 2. The one as a control 42 formed slot is provided running in the longitudinal direction of the wall 34 in the wall 34, pivotable about a horizontal component of movement of the control cam 51 of the stored control element 72 to compensate. The control element 41 is shaped as an arc extending groove formed, the arc shape by the swivel arc in the Groove engaging control cam 50 around the bearing 47/52 is determined.

3 shows an embodiment of a shaving head 48 which is used as a long hair cutting system 23 with protruding with respect to the longitudinal side walls 59 and 61 of the upper knife 18 Comb elements E - see Fig. 5 - is formed. The upper knife 18 is in this Embodiment from a sheet metal part, for example, by using a Stamping process a plurality of slots 53 and partially connecting them in the longitudinal direction of the upper knife 18 extending further slots 54 webs 55, 56, 57, 58 are formed are. The sheet metal part is then pressed into a U-shape by means of a pressing process pressed in such a way that the webs running transversely to the longitudinal direction of the upper knife 18 55, 56 with respect to the outer contour of the two angled to the wall element 60 extending Long side walls 59 and 61 protrude - see sectional view of FIG. 5

The respective part of the webs 55 protruding from the longitudinal side walls 59, 61 56 causes as a comb element E the threading of hair into the cutting area of the Upper knife 18th

In the embodiment shown in FIG. 3, the arrangement and Shape of the slots 53 and 54 to each other such that in the wall element 60 a web 57 running in the longitudinal direction of the upper knife 18 is formed, as well as several running transversely to the web 57 and matching the U-shape of the upper knife 18 Webs 58 are formed. The number of webs 58 depends on the application in each individual case required stability of the upper knife 18 depends and therefore not on the in Fig. 2 shown limited.

In the embodiment shown in FIG. 3, there are between two webs 58 each 4 webs 55 and 56 are provided on both sides of the webs 57, which in the area of the Upper knife 18 under pressure of the pressure spring 49 and oscillating lower knife 19 a cutting function and with the angled longitudinal side walls 59 and 61 protruding ends as a comb element E a threading function in the course the movement of the upper knife 18 over the skin in the respective direction. To avoid skin irritation, the edges of the webs 55 to 58 are the with the Skin come into contact, in particular the edges of those formed by the webs 55 and 56 Comb elements E rounded. The number of webs 55, 56 between two webs 58 is changeable taking into account a stability required for the upper knife 18.

The slots delimited in the longitudinal side walls 59 and 61 by the respective webs 58 54 allow the inclusion of one of the comb elements E of the webs 55 and 56 practiced threading an unimpeded penetration of longer hair in the Cutting area of the long hair cutting system 23.

In order to merge the shaving head according to FIG. 3 into a complete assembly, the Pressure spring 49 coupled to the coupling element 20. Then the lower knife 19 attached to the coupling piece 20 by means of a pin 64 and into the interior of the U-shaped Upper knife 18 inserted. By means of the holding elements 62 and 63, each on a End of the pressure spring 49 come to rest and thus as a support for this spring serve, the lower knife 19, the pressure spring 49 and the coupling piece 20 with the upper knife 18 combined into one assembly, the holding elements 62, 63 passing through Pins 65 to 68 with the longitudinal side walls 59 and 61 of the upper knife 18 firmly be connected, e.g. by means of a welded joint. This to a complete The shaving head 48 preassembled module is then inserted into the carrier element 24 and fastened there by means of the fastening elements 21 and 22. For this purpose in the transverse walls 25 connecting the longitudinal walls 33 and 34 and 26 slots 70 - see Fig. 4 - provided, in which the spring-elastic fasteners 21 and 22 of the long hair cutting system 23 during the assembly of the Compress the long hair cutting system 23 with the carrier element 24. This clip connection ensures easy assembly and removal for exchange purposes.

The walls 33 and 34 of the carrier element 24 are in the embodiment of FIG. 4 each designed as a threading comb. The threading combs formed by the walls 33 and 34 are with a relatively wide tooth comb i.e. with a relatively large distance of the individual comb teeth to each other. In contrast, the upper knife points 18 of the long hair cutting system 23 a narrow comb teeth of the comb elements E i.e. with a relatively small distance between the individual comb teeth. The comb elements 35 and 36 of the threading combs formed in the walls 33 and 34 are conditional due to the rough toothing only some of the finely toothed comb elements E of the upper knife 18 assigned. The distance from two comb elements 36 or from two comb elements 35 is dimensioned such that at least one web 55 or 56 or 58 of the comb elements E of the upper knife 18 projects into this distance.

FIG. 5 shows a cross section through a carrier element 24 with one arranged therein Long hair cutting system 23. In this embodiment, the is over the long side walls 59 and 61 of the upper knife 18 projecting comb elements E a comb element 35 or 36 assigned. The comb element 35 is on the wall 33 and the comb element 36 formed on the wall 34 in such a way that it precedes the respective comb element E. is. The comb elements 35 and 36 are in the area of their contact with the skin Surfaces rounded with a stepless transition of the outer surfaces of the comb elements 35 and 36 of the support element 24 to the comb elements E of the upper knife 18. Inside of the substantially U-shaped upper knife 18 with protruding Comb elements E, the lower knife 19 of the long hair cutting system 23 is movably arranged.

6 shows a perspective view of the carrier element 24 and long hair cutting system 23 according to FIGS. 4 and 5 with a view of the wall 34 and transverse wall 25. The in the wall 34 provided U-shaped recess 30, whereby the in the transverse walls 25, 26 molded guide grooves 31, 32, the coupling piece 20, the control cam 38, a control element 29 designed as a slot and the comb elements 35 of the carrier element 24 are visible. The U-shaped recess 30 favors a relatively close arrangement the carrier element 24 with built-in long hair cutting system 23 to the upper knife 11 of the intended short hair cutting system K of the dry shaver TR - see Fig. 2 -.

7 and 8 each show a side view of the upper part of the front side wall 83, which is formed by the housing shells 81 and 82, and that opposite the outer Contour of the front wall 83 protruding shaving head frame 10 provided therein Short hair cutting system K and the carrier element 24 with comb elements 36. In Fig. 7 takes the carrier element 24 with the long hair cutting system 23 provided therein not visible - a lower position to the higher cutting surface of the Short hair cutting system K a. In this position, the long hair cutting system 23 be both on and off. The long hair cutting system is preferred 23 switched on when using the switched on short hair cutting system Kzu to prevent the individual penetrating into the long hair cutting system 23 longer hair can get caught there.

In Fig. 8, the support member 24 with the long hair trimming system 23 is turned on State an upper position, which is at the height or approximately at the height of the top surface point of the short hair cutting system K. The carrier element is in this position 24 with the long hair cutting system 23 arranged therein floating.

Claims (21)

1. A dry shaving apparatus (TR) having a housing (1) and a shaving head frame (10), wherein

   1.1

   the shaving head frame (10) accommodates a single short-hair cutter unit (K);

   1.2

   on one of the outer sides of the shaving head frame (10), laterally adjacent to the single short-hair cutter unit (K), is a single long-hair cutter unit (23) of an essentially U-shaped configuration;

   1.3

   the long-hair cutter unit (23) is comprised of an outer cutter (18) having slits (53, 54) and segments (55, 56, 57, 58), and of an associated inner cutter (19), and is movable in a vertical direction (A) by means of a carrier structure (24);

   1.4

   the outer cutter (18) has comb elements (E) protruding beyond the outer cutter's two longitudinal side walls (59, 61);

   1.5

   a threader comb having comb elements (35, 36) is associated with the comb elements (E) of the outer cutter (18); and

   1.6

   the comb elements (35, 36) of the threader comb are movable jointly with the comb elements (E) of the outer cutter (18) in a vertical direction (A).

2. The dry shaving apparatus according to claim 1, characterized in that the threader combs equipped with comb elements (35, 36) are provided on a carrier structure (24) of the U-shaped outer cutter (18).
3. The dry shaving apparatus according to claim 1 or 2, characterized in that the long-hair cutter unit (23) with the comb elements (E) is a ready-to-install module adapted to be coupled to the carrier structure (24) provided with threader combs.
4. The dry shaving apparatus according to any one of the claims 1 to 3, characterized in that the threader combs are formed by two walls (33, 34) extending parallel to each other in longitudinal direction and having comb elements (35, 36) integrally formed thereon.
5. The dry shaving apparatus according to claim 4, characterized in that the walls (33, 35) are connected at their respective ends in longitudinal direction by means of a cross wall (25, 26).
6. The dry shaving apparatus according to any one of the preceding claims, characterized in that the long-hair cutter unit (23) equipped with comb elements (E) is provided between the parallel walls (33, 35).
7. The dry shaving apparatus according to any one of the preceding claims, characterized in that cooperating guide elements (27, 28, 31, 32) are provided on the carrier structure (24) and the shaving head frame (10) to control the vertical mobility of the carrier structure (24) and the long-hair cutter unit (23).
8. The dry shaving apparatus according to any one of the preceding claims, characterized in that the carrier structure (24) is movable against the spring force of at least one spring element (7).
9. The dry shaving apparatus according to claim 8, characterized in that the spring element (7) is disposed in a coupling element (8) adapted to couple the electric drive mechanism with the inner cutter (19) of the long-hair cutter unit (23).
10. The dry shaving apparatus according to claim 8, characterized in that the spring element (7) is disposed between the carrier structure (24) and the shaving head frame (10).
11. The dry shaving apparatus according to any one of the preceding claims, characterized in that the outer contour of each comb element (35, 36) of a threader comb blends with the outer contour of a respective neighboring comb element (E) of the outer cutter (18) of the long-hair cutter unit (23).
12. The dry shaving apparatus according to claim 11, characterized in that the comb elements (35, 36) of the threader comb are provided underneath the comb elements (E) of the outer cutter (18) of the long-hair cutter unit (23).
13. The dry shaving apparatus according to claim 11, characterized in that the comb elements (35, 36) of the threader comb are positioned in front of the comb elements (E) of the outer cutter (18) of the long-hair cutter unit (23).
14. The dry shaving apparatus according to any one of the preceding claims, characterized in that the comb elements (35, 36) of the threader comb are rounded off in the area of their skin-engaging surfaces.
15. The dry shaving apparatus according to any one of the preceding claims, characterized by a smooth transition from the outer surfaces of the comb elements (35, 36) of the threader comb to the comb elements (E) of the outer cutter (18) of the long-hair cutter unit (23).
16. The dry shaving apparatus according to any one of the preceding claims, characterized in that the threader comb is equipped with a coarse comb tooth setting of the comb elements (35, 36).
17. The dry shaving apparatus according to any one of the preceding claims, characterized in that the outer cutter (18) is equipped with a close comb tooth setting of the comb elements (E).
18. The dry shaving apparatus according to any one of the preceding claims, characterized in that provision is made for the long-hair cutter unit (23) to be able to be switched on in two positions provided at relative opposite ends, and to be switched off in an intermediate position.
19. The dry shaving apparatus according to any one of the preceding claims, characterized in that the long-hair cutter unit (23) is floatingly mounted when in a position essentially coincidental with the height of the short-hair cutter unit (K).
20. The dry shaving apparatus according to any one of the preceding claims, characterized in that the long-hair cutter unit (23) is adapted to be switched on and locked in a position opposite to that of the short-hair cutter unit (K).
21. The dry shaving apparatus according to any one of the preceding claims, characterized by the provision of a trimmer unit (3) on the housing (1).

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