ES2271765T3 - CUTTING ASSEMBLY FOR ELECTRIC MACHINES TO CUT THE HAIR. - Google Patents

Abstract

Cutting set for electric machines for cutting hair with a cutting comb (1) and a cutting blade (2) resting on said cutting comb (1) and which can be moved oscillatingly by means of an organ of drag (9) fixed on the drive side, characterized in that at least one electrically heated element (3) is arranged in the area of the cutting comb (1) and / or of the cutting blade (2).

Description

Cutting set for electric machines haircut.

The invention concerns a cutting assembly for electric hair cutting machines according to the preamble of the claim 1 and to a hair clipper according to the preamble of claim 13. Such cutting assemblies and hair clippers are known, for example, by the DE 297 24 477 U1.

The so-called scissors are also known hot. Examples of electrically heated scissors are known from document DE 196 26 069 A1 or document DE 101 07 284 A1. The advantage of such scissors is that simultaneously the cutting surfaces of the hairs are sealed individual with the hot edge. This encourages the regeneration of hair, aims to prevent hair cleft and protect it against environmental influences. With lasting use, the hair gets More volume and brightness. It is disadvantageous to consume time for a haircut tied to scissors of this class manually actionable

The object of the invention is to provide a cutting set for an electric machine of to cut the hair, as well as a machine of this class, that allow a sealing the cutting surfaces of the hairs in a way analogous to hot scissors.

The objective of reaching according to the invention by means of a cutting set for electric machines to cut the hair with the characteristic features of the claim 1, as well as with a hair clipper with characterizing features of claim 13.

The cutting assembly according to the invention for Electric hair cutting machines features a cutting comb and a cutting blade resting on said cutting comb and that it can be moved oscillatingly by means of an organ of drag fixed by the drive side, being arranged at less an electrically heated element in the comb zone of cutting and / or cutting blade. Through the elements electrically heated the cutting blade and / or the cutting comb, so that when cutting with the cutting machine the hair, an effect similar to that of a hot scissors is achieved through of the cooperating heated edges of the cutting comb and the cutting blade Surprisingly, it has been seen that the brief contact time between cutting edges and hairs, as is Typical for fast-moving electric machines, it is completely enough to ensure the necessary sealing of surfaces cutting the ends of hair cut.

To this is added as an additional advantage that, Due to the high temperatures in the cutting assembly, it annihilate germs, bacteria and pathogens. Disinfection thermal so produced leads to a high hygiene pattern without additional special measures.

Preferably, electrically two elements heaters are arranged in the area of the cutting comb and in the area of the cutting blade. The two mutually cooperating edges of the cutting comb and the cutting blade thus have the same temperature, which is especially favorable for sealing The cutting surfaces of the individual hairs.

In an advantageous embodiment of the invention the electrically heated element is a layer attached to the comb of cutting or the cutting blade or an insert integrated into the cutting comb or on the cutting blade, the layer or part being insert thermally coupled with cutting edge or cutting edge The cutting blade.

Preferably, the at least one element Electrically heated is a ceramic plate with a conductor of integrated heating, a hybrid heating element, a heating tape, a heating resistance or a transistor.

In an advantageous improvement of the Invention the cutting comb is provided with a protective comb. He Protective comb thermally insulates the outer surfaces of the cutting comb and thus reliably prevents contact involuntary between the hot cut comb and the skin. Is excluded thus all risk of skin burns.

Preferably, the protective comb is attached fixedly with the cutting comb and cannot be removed by the user, so that the greatest possible protection is sought. By building the protective element as a comb, guarantees that, on the one hand, the cutting comb is thermally isolated, but, on the other hand, keep bare the biggest part of the teeth of the cutting comb, so that the hairs can be caught and cut without problems.

Preferably, an electronics is provided of control for the at least one electrically heated element. This makes it possible to deliberately adjust the temperature.

In an advantageous improvement of the invention the control electronics is housed in the set of cutting, in the handheld apparatus of the electric machine cutting the hair or in an external module that is attached to the handheld device or The cutting assembly through a power line. Be prefer here the execution in which the control electronics are housed in the cutting set, since in this case the set of Heated cutting is independent of the handheld device and therefore electric haircutting machines already known can be equipped with the new set of slashing cut according to the invention.

In an advantageous improvement of the invention the control electronics is supplied with current at through an accumulator or plug-in transformer to operation with the network, the accumulator being integrated in the handheld device or being housed in an external module that is connected to the handheld device or the cutting assembly through a power line, or when the transformer is connected pluggable with the handheld device or with the cutting set to through a power line. If the control electronics is powered by a battery that is housed in an external module or that is directly connected to the set cutting through a power line, or if the control electronics is powered by current through a plug-in transformer for operation with the network, being connected the plug-in transformer with the cut-out assembly of a power line, the cutting set is independent of the handheld device and therefore can be used for machines Electric haircuts already exist.

Preferably, in the cutting comb or in the cutting blade is arranged a temperature sensor. This monitor the heating temperature, so that it can be regulated with the help of control electronics.

Preferably, the temperature of at least one electrically heated element is set to a value determined, it is adjustable in several steps or it is adjustable No steps To make possible a greater field of application, prefer here a step regulation or a regulation of The temperature without steps.

Preferably, the number of revolutions of the Oscillating drag organ is variable. Varying the number of revolutions it influences the cutting speed, which has repercussions on the sealing process. Therefore, the process of sealing can be optimized by varying the number of revolutions and the choice of the optimum speed depends on the strength of the person's hair to be treated and the working speed of the person Username.

Finally, the thermal disinfection effect described at the beginning can be activated according to an improvement advantageous of the invention by stopping the hair clipper, especially in work breaks. To this end, it can be put into manually or automatically controlled a process of disinfection in which the cutting assembly is heated during a default time while keeping the drive

According to the heat resistance of the microorganisms or pathogens of communicable diseases that want to destroy, you have to take into account a temperature between approximately 60 ° C and 170 ° C for a duration of heating between 5 minutes and 1 hour according to the Tables following:

Temp. in ºC Time of annihilation Agents annihilated or inactive Resistance Steps 80-100 5-10 min Vegetative bacteria, mushrooms, I spores of mushrooms 105 5-10 min Spores of B. anthracis , B. subtilis , II HAV / HBV 121 15 min Earth spores native spores III of B. searothermophilus Spores 134 3 min from clostridia 134 > 30 min Bacillus spores gram-positive IV thermophiles 134 1 hour Prions (CJK, vCJK, BSE) V

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Temp. in ºC Time of annihilation Agents annihilated or inactive 62.5 30 min TBC agents, pathogenic streptococci, poliovirus 80 30 min Vegetative bacteria, yeasts, molds, all viruses (too AIDS virus). Exception: Hepatitis virus 98-100 10 minutes All the kinds of vegetative bacteria, all virus, also hepatitis A, B, C

Therefore, according to the disinfection pattern intended, a disinfection cycle may be planned (temperature and maintenance time) individually preset or well preset in a fixed way. The activation of the process disinfection can be launched in the simplest case in individualized manual form, for example by means of a button drive mounted on the housing or elsewhere. How alternatively, the commissioning can also be carried out automatically when inserting the hair clipper into a corresponding load support. This has the advantage that the Disinfection is started at least in each charging process. Finally, the disinfection process can also be activated. according to other criteria, for example at certain time intervals, by means of an integrated control device.

Therefore, thermal disinfection can be also used when, otherwise, the hair clipper must be operated in a conventional manner, that is, in a state cold. Also, you can perform a warm-up that goes beyond of the usual operating temperature to annihilate so reliable especially resistant microorganisms, such as the prions cited in the previous Table.

The hair clipper according to the invention It is equipped with a cutting assembly according to the invention. The components necessary for the cutting assembly, such as controller and power supply, can be arranged in different integral parts of the hair clipper or in an external module

The invention is explained in detail by making reference to the following figures.

They show:

Figure 1, a plan view of an example of embodiment of the cutting assembly according to the invention,

Figure 2a, a side elevation of the assembly of cut of figure 1,

Figure 2b, a longitudinal section through of the cutting assembly of figure 1,

Figure 3, an exploded drawing of a second exemplary embodiment of a cutting assembly according to the invention,

Figure 4a, a plan view of the side bottom of the cutting comb of figure 3 with element electrically heated installed,

Figure 4b, a section along the line A-A of Figure 4a,

Figure 5, an exploded drawing of a third exemplary embodiment of a cutting assembly according to the invention,

Figure 6a, a plan view of the side bottom of the cutting comb of figure 5 with element electrically heated installed,

Figure 6b, a section along the line A-A in Figure 6a,

Figure 7, a perspective view of a cutting assembly according to the invention with a feed of current through an accumulator in an external module,

Figure 8, a perspective view of a cutting assembly according to the invention with a feed of current through a plug-in transformer,

Figure 9, a perspective view of a handheld device for an electric hair cutting machine with a installed cutting set and a power supply through of an accumulator in an external module,

Figure 10, a perspective view of a handheld device for an electric hair cutting machine with a cutting set and a power supply through a pluggable transformer,

Figure 11, a perspective view of a handheld device for an electric hair cutting machine with a installed cutting set and a power supply integrated,

Figure 12, a perspective view of the handheld device of figure 1 with said handheld device open,

Figure 13a, a longitudinal section through of the handheld device of figure 11,

Figure 13b, an enlargement of a detail of Figure 13a

Figures 14a to 14g, representations schematics of different provisions of the electronics of control and power supply by means of an accumulator for an electrically heated element and

Figures 15a to 15c, representations schematics of different provisions of the electronics of control and power supply by means of a plug-in transformer for an electrically element heated.

Figure 1 shows a first example of realization of a cutting assembly 20 with a cutting comb 1 and a cutting blade 2 that rests on it and can be moved oscillating in parallel to the longitudinal axis of the comb cut 1 by means of a drag member 9 fixed on the side of the drive The cutting blade 2 is pressed against the comb cutting by two compression springs cutting 10. The comb of cut 1 is fixed on a support 8 of the cut assembly by middle of two screws 13.

In cutting comb 1 and in the cutting blade 2 are integrated as parts inserts two elements electrically heated 3 (see figure 2b). The elements electrically heated 3 are thermally coupled with the cutting comb 1 and cutting blade 2 and thus heat the edges of the cutting comb 1 and cutting blade 2. The size and the power of electrically heated elements 3 are adjusted here to the mass to be heated of the cutting comb 1 and of the cutting blade 2. Electrically heated elements 3 they are, for example, a ceramic plate with conductor integrated heating, a hybrid heating element, a heating tape, a heating resistance or a transistor and are positioned so that the distribution of the heating power has an optimum impact on the cutting edges of cutting comb 1 and cutting blade 2.

The cutting comb 1 and a cutting blade 2 they are isolated (see figures 1, 3 and 5) by a protective comb 7 which is preferably made of plastic. The protective comb 7 it is fixedly connected with the cutting comb 1 through the two screws 13 and cannot be removed by the user. It serves to exclude all risk of skin burns. In the area of cutting edge 1 and cutting blade 2 the comb protector 7 is configured in the form of a comb, so that the edges the cutting comb 1 and the cutting blade 2 partially remain uncovered as in the case of a known plug-in comb. This Protective comb configuration 7 ensures that the hairs can be caught and cut without problems. External dimensions of support 8 of the cutting assembly, including the protective comb 7, are calculated so that the cutting assembly 20 according to the invention can be seated on conventional handheld devices 30 for electric hair cutting machines.

In the cutting assembly 20 a adjustment lever 11 with which the position can be varied relative between the cutting comb 1 and the cutting blade 2 and, by Therefore, the length of cut. However, the cutting length can be defined also by the configuration of the protective comb 7, to whose end corresponds correspondingly the distance between the outer surface of the protective comb 7 and the comb edges of cutting 1 and cutting blade 2. Therefore, the protective comb 7, in addition to insulating the heated edges of cutting comb 1 and The cutting blade 2, assumes the function of a plug-in comb known.

Figure 3 shows an exploded drawing of a second embodiment of a cutting assembly 20 according to the invention. In cutting comb 1 it is installed from the bottom side the electrically heated element 3, which is connected to a control electronics 6 through power lines 4, with what said element rests on the cutting comb 7. The electrically heated element 3 is then placed below the teeth of the cutting comb 1. The cutting blade 2. The control electronics 6 is inserted into a through opening of cutting comb 1. Cutting comb 1 is made of a heat conductive material, so that the edge of the cutting comb 1 is heated by the contact between the comb cutting 1 and electrically heated element 3 as soon as said electrically heated element is heated. Has not been represented a temperature sensor arranged in the cutting comb 1, which is connected to the control electronics 6 and measures the temperature of cutting comb 1 and retransmit it to the electronics 6 control to regulate the temperature.

The comb 1 is inserted into the comb protector 7, by which it is surrounded on the entire back side. On the cutting comb 1 sits the cutting blade 2, which it is connected with the drive body 9 through a bridge of contact 12 and is pressed against the cutting comb 1 by means of the two compression compression springs 10. In the electronics of control 6 two contact devices 7 are mounted for establish the contact between the cutting assembly 20 and the apparatus 30. As contact devices 8 parts can be used die cut and bent, contact plates, contact plates or contact pins. The arrangement of control electronics 6 in the cutting assembly 20 makes it possible, with a feed of proper current, operation of the element electrically Heater 3 that is independent of handheld 30, so that the cutting assembly 20 according to the invention can be seated also on handheld appliances 30 of electric cutting machines The hair already known.

Figure 5 shows the exploded drawing of a third embodiment of the cutting assembly 20 according to the invention, while Figures 6a and 6b show this example of realization in the assembled state. This cutting set 20 is difference from the first embodiment because it sits on the cutting comb 1 the electrically heated element 3, which is connected with the contact devices 5 through the lines power 4 while control electronics corresponding 6 is not found in cutting assembly 20, but which is arranged, for example, in the handheld 30.

In Figures 14a to 14g and 15a to 15c, schematically represent different arrangement possibilities of the electrically heated element 3, the control electronics 6 and the power supply. The different components can be arranged in this case in the cutting assembly 20, in the handheld 30 or in an external module 40. The dashed line and points hint here the set of cut 20 while the line dashed symbolizes handheld 30 and the continuous line symbolizes the external module 40.

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In figure 14a the element electrically Heater 3 is arranged in the cutting assembly 20, while both control electronics 6 and power supply through an accumulator 41 they are arranged in an external module 40 which is connected to the handheld 30. Figure 14b shows the same arrangement of the electrically heated element 3, the control electronics 4 and accumulator 41, the module being external 40 directly coupled to the cutting assembly 20.

Figures 14c and 14d show an execution in which both the electrically heated element 3 and the control electronics 6 are arranged in the cutting assembly 20, the power supply being carried out through the accumulator 41 mounted on external module 40. In the variant shown in figure 14c the external module 40 is connected to the handheld 30 while in the variant represented in the Figure 14d External module 40 is connected directly to the cutting set 20.

Figure 14e shows the embodiment variant wherein the electrically heated element 3 is arranged in the cutting set 20 while both the electronics of control 6 as the accumulator 41 are arranged in the apparatus of hand 30. Alternatively, as shown in Figure 14f, both the electrically heated element 3 and the electronics of control 6 may be arranged in the cutting assembly 20, while the accumulator 41 is arranged in the handheld device 30. In the exemplary embodiment shown in Figure 14g the electrically heated element 3 is arranged in the assembly cutting 20, while the control electronics 6 is arranged in handheld 30 and the power supply is carried out at through the accumulator 41 mounted on the external module 40.

Figures 15a to 15c show three examples of realization for an electric hair cutting machine, in which the power supply of the control electronics 6 is performs through a plug-in transformer 50 that is attached with the handheld 30 or with the cutting assembly 20 through a power line 51. In figure 15a the element electrically heated 3 is arranged in the cutting assembly 20, while the control electronics 6 is arranged in the handheld 30. Pluggable transformer 50 is connected to the handheld 30 through the cable 51. In the example of embodiment depicted in figure 15b both the element electrically heated 3 as the control electronics 6 are arranged in the cutting assembly 20, while the transformer Plug-in 50 is connected to handheld 30 through the power line 51. Alternatively, as depicted in the Figure 15c, the pluggable transformer 50 can be attached directly with the cutting assembly 20 through the line of feeding 51.

Figures 7 and 8 show an execution of the cutting assembly 20 in which said cutting assembly 20 can be operated completely independently of the device hand 30. The electrically heated element 3 and the electronics of control 6 are arranged in the cutting assembly 20. The power supply of control electronics 6 is carried out in the manner represented in figure 7 through the external module 40, in which the accumulator 41 is arranged and which is attached with the cutting assembly 20 through a feed line 44 (see also figure 14d). In the external module 40 is arranged a control element 43 to connect and regulate the temperature of the electrically heated element 3, indicating the temperature of the electrically heated element 3 over a indicating device 42. In figure 8 the cutting assembly 20, in which the element is electrically integrated Heater 3 and control electronics 6 are connected to the plug-in transformer 50 for operation with the mains via power line 51 (see also figure 15c).

In figures 9 and 10 two are represented exemplary embodiments in which the power supply is connected to handheld 30. Figure 9 shows the variant in which the power supply is done through the accumulator 41 mounted on external module 40, which is connected to handheld 30 through the power line 44. In the handheld 30 there is a power switch connection / disconnection 31 with which both connect and disconnect The heating function of the electrically heated element 3 as the cutting function of the cutting assembly 20. In the apparatus handheld 30 a status indicator 32 is provided consisting of four luminescent diodes that informs the user about the momentary temperature of the electrically heated element 3. By example of the four luminescent diodes of the status indicator 32 so many more diodes light up the hotter the electrically heated element 3. Alternatively, instead of status indicator 32 may also be arranged in the apparatus handheld 30 an indication panel indicating the temperature absolute of the electrically heated element 3. In the examples of embodiment represented in figure 10 the configuration of the handheld 30 is identical to that of the exemplary embodiment represented in figure 9, the feeding of handheld 30 current through the transformer plug-in 50, which is connected to handheld 30 through of the power line 51.

An example is shown in Figures 11 to 13 of realization in which all components necessary for the electrically heated cutting assembly 20, such as the electrically heated element 3, control electronics 6 and the power supply, are integrated in the handheld 30 or in the cutting assembly 20, so that no external module 40. The electrically heated element 3 rests on the cutting comb 1 as already described with respect to Figure 3. The control electronics 6 is also integrated in the cutting assembly 20. The accumulator 41 is arranged in the handheld device 30, so that this handheld device 30 can be operated independently of external module 40 or the net. At the end of the handheld device 30 that looks out from the cutting assembly 20 is plugged into a socket 39 for recharge accumulator 41 if necessary. The socket 39 it is connected for this purpose with the accumulator 41 through plates of charging contact 38. The accumulator 41 establishes contact with a plate 33 which is connected with an engine 36 through two lines of power 34 and used to control the motor 36. The motor 36 is connected with the drive member 9 of the cutting assembly 20 a through an eccentric 37, so that the cutting blade 2 can be moved by this eccentric oscillatingly with respect to to the cutting comb 1. In addition, the number of engine revolutions 36 and therefore the cutting speed by middle of the on / off switch 31. It can be optimized thus the sealing process when cutting the hairs with the edges heated of the cutting assembly 20, and the choice of the number of optimal revolutions depends on the strength of the person's hair to try and the user's work speed. The contact between the cutting assembly 20 and the handheld 30 are guaranteed by means of contact devices 5, which apply to two retention springs 35 which is connected with the plate 33 through of the power lines 34.

List of reference symbols

one

   Cutting comb

2

   Cutting blade

3

   Electrically heated element

4

   Power line

5

   Contact device

6

   Control electronics

7

   Protective comb

8

   Cutting set support

9

   Drag organ

10

  Compression spring

eleven

  Adjustment lever

12

  Contact bridge

13

  Screw

twenty

  Cutting set

30

  Handheld device

31

  On / off switch

32

  Status indicator

33

  License plate

3. 4

  Motor power line

35

  Retaining spring

36

  Engine

37

  Eccentric

38

  Load contact plate

39

  Plug socket

40

  External module

41

  Accumulator

42

  Indication element

43

  Control element

44

  Power line

fifty

  Pluggable Transformer

51

  Power line

Claims (13)

1. Cutting set for electric machines for cutting hair with a cutting comb (1) and a cutting blade (2) resting on said cutting comb (1) and which can be moved oscillatingly by means of a drive element (9) fixed on the drive side, characterized in that at least one electrically heated element (3) is arranged in the area of the cutting comb (1) and / or of the cutting blade (2). 2. Cutting assembly according to claim 1, characterized in that both electrically heated elements (3) are arranged in the area of the cutting comb (1) and in the area of the cutting blade (2). 3. Cutting assembly according to one of the preceding claims, characterized in that the electrically heated element (3) is a layer joined with the cutting comb (1) or the cutting blade (2) or an insert integrated in the comb cutting (1) or the cutting blade (2), the layer or insert being thermally coupled with the edges of the cutting comb (1) or the cutting blade (2). 4. Cutting assembly according to one of the preceding claims, characterized in that the at least one electrically heated element (3) is a ceramic plate with integrated heating conductor, a hybrid heating element, a heating tape, a heating resistance or a transistor. 5. Cutting assembly according to one of the preceding claims, characterized in that the cutting comb (1) is provided with a protective comb (7). 6. Cutting assembly according to one of the preceding claims, characterized in that a control electronics (6) are provided for the at least one electrically heated element (3). 7. Cutting assembly according to claim 6, characterized in that the control electronics (6) are housed in the cutting assembly (20), in the handheld device (30) of the electric hair cutting machine or in a module external (40) that is connected to the handheld device (30) or to the cutting assembly (10) through a power line (44). 8. Cutting assembly according to claim 6 or 7, characterized in that the control electronics (6) are supplied with current through an accumulator (41) or a plug-in transformer (50) for operation with the network, the accumulator being ( 41) integrated in the handheld device (30) or housed in an external module (40) that is connected to the handheld device (30) or to the cutting assembly (20) through a power line (44) , or when the plug-in transformer (50) is connected to the handheld device (30) or to the cutting assembly (20) through a power line (51). 9. Cutting assembly according to one of the preceding claims, characterized in that a temperature sensor is arranged in the cutting comb (1) and / or in the cutting blade (2). 10. Cutting assembly according to one of the preceding claims, characterized in that the temperature of the at least one electrically heated element (3) is adjusted to a certain value, is adjustable in several steps or is adjustable without steps. 11. Cutting assembly according to one of the preceding claims, characterized in that the number of revolutions of the oscillating drive member (9) is variable. 12. Cutting assembly according to one of the preceding claims, characterized in that a thermal disinfection process can be started while the drive is stopped. 13. Hair cutting machine consisting of a handheld device (30) and a cutting assembly (20), characterized in that the cutting assembly (20) is constructed as a cutting assembly (20) according to one of claims 1 to 12.