EP0917850B1 - Air leading pipe, in particular suction pipe - Google Patents

Abstract

The air hose (3) has one end for coupling it to a vacuum cleaner (1) and supports a power supply cable (10). To the other end (6) appliances can be attached e.g. a motor driven carpet brush (9), which can be supplied by the cable. The cable can be detached from the hose when the appliance is not power driven

Description

The invention relates to an air guide hose, in particular suction hose, for example, for a vacuum cleaner or a window cleaning attachment with a run on the outside of the hose electrical cable, the hose has a machine end and a header end.

Hoses of the type in question are known in particular in the form of suction hoses for vacuum cleaners, wherein the machine-side end of the hose is detachably connectable to the vacuum cleaner. The header end of the hose has a coupling for connecting attachments, such as provided with an electric motor brushes or the like. Or for connecting suction nozzles. Furthermore, for example, a non-electric window cleaning attachment can also be arranged on this attachment end. For the operation of electrical attachments, it is known to run along the outside of the hose along an electric cable, which is clipped on the hose, for example. The two plug-in or coupling-type ends of the electric cable are firmly integrated in the adapter or machine end of the suction hose which forms an adapter in each case.

The US 4,618,195 shows an air guide hose of the type in question, with an externally guided on the hose and a machine end and an intent end having electric cable.

Starting from the prescribed prior art, the invention is concerned with the technical problem of specifying an air guide hose of the type in question, which is formed vorteilsvorteilhaft.

This technical problem is solved first and foremost in the subject matter of claim 1, being based on the fact that the electric cable surrounds the hose helically, that the electric cable with the intent end of the hose is detachably connected by means of an electric clutch and that after releasing the electric clutch retraction of the electric cable is opened to a compressed, held on the hose length thereof. According to this embodiment, it is possible for the user, depending on the selected operation, to connect the electric cable to the front end of the hose or to release this connection. For example, when working with an electric motor driven brush attachment the relevant end of the electric cable with the suction interface forming intent end of the hose connected to the electrical supply of this attachment via the vacuum cleaner, including a further electrical interface between the vacuum cleaner and maschinenseitigem end of the hose , If, on the other hand, a non-electrical attachment is selected, the design according to the invention proves to be advantageous in that the electric interface of the handling area can be continued by detaching the electric cable from the attachment end of the hose. This is particularly advantageous when working with a suction current-dependent, non-electric window cleaning attachment, since the electrical interface can be displaced from the moist, splash-prone area by the inventive design. In a development of the subject invention it is provided that the electric cable surrounds the hose helically. A benefit advantageous handling is achieved in that the electric cable has an inherent spring force such that upon release of the electric cable from the front end a retreat to the machine end takes place. By thus formed, resilient spiral cable holding elements for the electric cable on the hose can be omitted. Next is by the spring characteristic of the electric cable ensures that when it is detached from the front end of the hose this is automatically removed from the area of the air flow interface between the hose and attachment. Alternatively, this can also be provided a separate return spring. However, internal spring forces are preferred in the electrical cable, for example by ejection of a polyamide cable sheath made of polyurethane. The spring effect can be adjusted so that a retraction of the leading side end of the electric cable takes place over a partial length of the hose. However, it is preferred to retract the helical electric cable entirely to the end of the machine into a bony end position. In addition, it proves to be advantageous in terms of handling that the header-side end of the electric cable is designed as a separate electrical coupling guided on the hose. By guiding this electric coupling on the hose, it is the user in the simplest way possible to restore the connection between the electric cable and vorsatzseitigem end of the hose. In a further embodiment, it is proposed that the electric cable to be connected to the head end of the hose directly to the attachment. It is also proposed that the guidance of the electric clutch is formed by a guide ring, which latter surrounds the hose. By means of this guide, the electric clutch slides after loosening from the front end or from the attachment, guided by the suction hose in the direction of the machine end in a basic / standby position. The automatic sliding back of the electric clutch and also the handling when returning it to the coupling position of the same is substantially facilitated by the fact that the guide ring has a relation to the outer diameter of the tube enlarged inner diameter. In addition, it is provided that a plug receptacle connected to the electric cable is attached to the guide ring. Here, an embodiment is preferred, as it is known from DE 196 08 245 and DE-A1 196 08 247.

The contents of these patent applications are hereby incorporated in full into the disclosure of the present invention, also for the purpose of including features of this patent application in claims of the present invention. This connector receptacle is at least two-pole, but may, as otherwise preferred, also be formed in three or more poles. Here, the more than two outgoing poles are occupied with control lines, for example, for transmitting signals to control the electric motor in the vacuum cleaner. In order to design the same in terms of safety, especially when working with electrically powered wet cleaning attachments, it is provided that the electric coupling in one coupling position overhangs an unlocking button of the front end of the hose to release it from the attachment. By this configuration, it is ensured that for disengaging the attachment initially the electrical connection must be solved to expose the hose or attachment unlocking. Thus, for example, be provided that the guide ring and / or the plug receptacle in the coupling position, the unlocking button or the like. Covered so that users can not operate in this position. Alternatively, it can be provided that the electric clutch and the hose coupling are released together with a hard grip. In an advantageous development of the subject invention it is provided that the electric cable is plugged into the adapter at the end of the suction hose in an adapter piece of the suction hose. About this adapter piece of the suction hose can be connected to the vacuum cleaner. The this-sided end of the electric cable is according to the invention in the adapter piece for line connection with a correspondingly arranged in the connection area plug-in coupling vacuum cleaner plugged. According to this plug-in training, the entire helical electric cable from the suction hose is removable after a removal of the adapter-side electrical connector, for Formation of a non-electrified suction hose. For example, for overfloor work (suction of shelves, etc. with attachment nozzles) the suction hose can be used without an electric cable. To use the same with an electric attachment, the electric coiled cable is slipped over the hose, the machine-side end of the cable in the hose-side adapter piece and the electrical coupling of the cable with the attachment, optionally inserted with the interposition of a handle and / or suction tube. It proves to be particularly advantageous that a plug-in part of the electric cable at the same time represents the electrical connection interface to an electric motor or the like. For this purpose, the adapter piece preferably has an empty electrical contact chamber, which is designed to be open in the hose direction. The outlet opening thus formed is closed by a contact chamber cover in the non-electrified state of the hose. By opening this cover and inserting the male part of the electric cable, the hitherto non-electric hose is electrified. For this purpose, the plug has plug contacts, which sit in a holder which positions the contacts in the contact chamber accordingly. Furthermore, this holder can also form the new contact chamber cover. Consequently, only by inserting the plug-in part into the adapter piece, the electrical connection interface to the vacuum cleaner is formed. Also with regard to the design of this interface, reference is made to the aforementioned disclosure. In a further embodiment, it is provided that assigned to the machine end of the hose, a receiving sleeve for the electric cable is formed for receiving the electrical cable outside the sleeve. This sleeve can be connected to the machine-side adapter piece of the suction hose. However, it is also conceivable to form this sleeve as a separate, the electric cable associated part, wherein an extended portion of the sleeve at the same time forms the plug of the electric cable. Thus, you can Electric cable and sleeve are pushed as a unit on the hose to be locked with the adapter piece, for example. An area machined out of the sleeve can in this case form the mentioned contact chamber cover. It is further preferred in this regard that the sleeve is designed as a cylinder. This sleeve, which is also designed in a sleeve shape, simultaneously serves as a cable backup aid and for cable positioning as well as an assembly / disassembly aid. In this case, it proves to be particularly advantageous that a catch molding is formed on the sleeve for latching the guide ring. Thus, in a retracted position of the resilient helical electric cable, the header-side end, ie, the electric clutch, is securely supported on the sleeve, thus forming an electrifying module. This is easy to handle. Also, an air guide hose may be provided which has a separate handle for combination with the vacuum cleaner, wherein the handle has an air line formed at both ends of the handle connecting portions. In order to design such a separate handle multifunctional, it is provided that the handle at both ends further comprises an electrical interface for connection to an electric cable or an electrical connection in a header. According to this embodiment, the handle according to the invention is first in a conventional manner in conjunction with a vacuum cleaner or the like. Usable, wherein the handle both Saugaugmäßig and electrically an electrical or non-electrical attachment with the vacuum cleaner, optionally with the interposition of a suction tube and / or a Suction hose connects. Furthermore, such a separate grip piece can also serve merely as an incorporation handle as a result of the embodiment according to the invention. This example, for handling electrical attachments for incorporation of cleaning agents in upholstery or carpets. Since no suction air flow is required in these works, it is desirable to do this work without to carry out the usually connected suction device. For this purpose, the handle of the suction hose or the like. Is separated. The electrical power supply of the device connected to the handle offset device via a directly plugged into the handle electric cable. Preference is given here an electric cable with a socket, as is known from the aforementioned DE-A1 196 08 245. According to this embodiment, the handle is directly, ie electrified without the interposition of a vacuum cleaner. In an advantageous development it is provided that the handle has a power / control switch. In a configuration with a vacuum cleaner, for example, the suction power can be controlled via such a switch. In this regard, reference is made to DE-A1 197 20 949. The content of this patent application is hereby incorporated in full in the disclosure of the present invention, also for the purpose of including features of this patent application in claims of the present invention. In a configuration without a vacuum cleaner, the electric attachment, for example, an electrical training brush or the like. On or off via this switch. Finally, it proves to be advantageous that the handle has a releasable connection latch. By means of the latter, the attachment or an intermediate, an electric cable for electrical connection of attachment and handle exhibiting suction tube on the handle detent can be fixed.

Fig. 1

einen Staubsauger mit einem erfindungsgemäßen Saugschlauch mit beidendig angeschlossenem Elektrokabel in einer Perspektive;

Fig. 2

in einer Seitenansicht den Kupplungsbereich zwischen Saugschlauch und einem Griffstück in gekuppelter Stellung einer Elektrokupplung des Elektrokabels mit dem Griffstück;

Fig. 3

eine Seitenansicht des maschinenseitigen Anschlußbereiches zwischen Saugschlauch und Staubsauger bei in einem saugschlauchendseitigem Adapter eingesteckten Elektrokabel-Einsteckteil;

Fig. 4

die vorsatzseitig angeordnete Elektrokupplung des Elektrokabels in Seitenansicht;

Fig. 5

die Elektrokupplung in einer Vorderansicht;

Fig. 6

eine im wesentlichen der Fig. 2 entsprechende Darstellung, jedoch partiell geschnitten;

Fig. 7

eine der Fig. 3 entsprechende Darstellung, jedoch gleichfalls partiell geschnitten;

Fig. 8

den in Fig. 3 dargestellten, maschinenseitigen Adapterbereich des Saugschlauches nach Abnahme vom Staubsauger;

Fig. 9

eine Ansicht auf den Adapter gemäß dem Pfeil IX in Fig. 8;

Fig. 10

eine der Fig. 2 entsprechende Darstellung, jedoch nach Aufhebung der Kupplung zwischen Elektrokupplung und Griffstück;

Fig. 11

eine partielle Schnittdarstellung gemäß Fig. 6, jedoch die Situation gemäß Fig. 10 betreffend;

Fig. 12

eine der Fig. 3 entsprechende Darstellung, jedoch bei vollständig zurückgezogenem Elektrokabel;

Fig. 13

eine der Fig. 12 entsprechende Darstellung bei Abzug eines gebildeten Elektrifizier-Moduls vom Saugschlauchadapter;

Fig. 14

eine der Fig. 7 entsprechende Schnittdarstellung, jedoch nach Abzug des Elektrifizier-Moduls;

Fig. 15

eine der Fig. 9 entsprechende Stirnansicht auf den Saugschlauchadapter, die Situation ohne Elektrifizier-Modul gemäß den Fig. 13 und 14 betreffend;

Fig. 16

ein gesondertes Griffstück mit zuordbarem, eine Steckdose aufweisendem Netzkabel;

Fig. 17

die Ansicht gemäß dem Pfeil XVII in Fig. 16;

Fig. 18

eine perspektivische Darstellung eines elektrisch betriebenen Einarbeitungsgerätes;

The invention with reference to the accompanying drawings, which represents only one embodiment, explained in more detail. Hereby shows:

Fig. 1

a vacuum cleaner with a suction hose according to the invention with both ends connected electrical cable in a perspective;

Fig. 2

in a side view of the coupling region between the suction hose and a handle in the coupled position of an electric clutch of the electric cable with the handle;

Fig. 3

a side view of the machine-side connection area between the suction hose and vacuum cleaner with inserted in a saugschlauchendseitigem adapter electric cable plug-in part;

Fig. 4

the header side arranged electric clutch of the electric cable in side view;

Fig. 5

the electric clutch in a front view;

Fig. 6

a representation substantially corresponding to Figure 2, but partially cut.

Fig. 7

a representation corresponding to Figure 3, but also partially cut.

Fig. 8

the illustrated in Figure 3, machine-side adapter portion of the suction hose after removal from the vacuum cleaner.

Fig. 9

a view of the adapter according to the arrow IX in Fig. 8;

Fig. 10

a representation corresponding to Figure 2, but after cancellation of the coupling between electric clutch and handle.

Fig. 11

a partial sectional view of FIG. 6, but the situation according to FIG. 10 concerning;

Fig. 12

a representation corresponding to Figure 3, but with fully retracted electric cable.

Fig. 13

a representation corresponding to Figure 12 with deduction of a formed Elektrifizier module from Saugschlauchadapter.

Fig. 14

one of Figure 7 corresponding sectional view, but after deduction of the electrifying module.

Fig. 15

one of Fig. 9 corresponding end view of the Saugschlauchadapter, the situation without Elektrifizier module according to FIGS. 13 and 14 concerning;

Fig. 16

a separate handle with assignable, an outlet having a power cord;

Fig. 17

the view according to the arrow XVII in Fig. 16;

Fig. 18

a perspective view of an electrically operated incorporation device;

Shown and described is first referring to Fig. 1, a vacuum cleaner 1, here a vacuum cleaner, with an electrical connection line 2 for powering a suction motor, not shown.

This vacuum cleaner 1 is provided with a flexible suction hose 3, which at one end at the machine end 4 via an adapter piece 5 with the vacuum cleaner 1 and at the other end, the front end 6, with a handle 7 is detachably connected. At the latter, a header 9 is connected via a suction tube 8, which has an electric motor, also not shown, for driving rotary brushes.

The electrical connection of this, the attachment 9 integrated electric motor is carried out in the usual manner by means of the suction tube 8 and in the handle 7 extending lines, including between attachment 9 and suction tube 8 and between suction tube 8 and handle 7 each in addition to the air duct interfaces and electrical interfaces, provided in the form of plug-coupling formations.

The electrical connection of handle 7 and vacuum cleaner 1 via a loose, helically the suction hose 3 revolving electric cable 10, which at one end with the handle 7 and the other end in the region of the adapter piece 5 with the vacuum cleaner 1 is connectable.

In which the front end 6 of the suction hose 3 associated end portion of the electric cable 10 is a separate, guided on the suction hose 3 electric clutch 11 is formed. The latter is essentially composed of one, the suction hose 3 comprehensive guide ring 12 and arranged on this ring outside, in the direction of the here to be connected handle 7 facing plug receptacle 13. In the illustrated embodiment, the latter is slightly bent, bringing a main body axis of the plug receptacle 13 easily is aligned with respect to the guide ring axis.

The plug receptacle 13 points in the direction of the attachment to be connected or here in the direction of the handle 7. In the back, the helical electric cable 10 exits from the plug receptacle 13.

The plug receptacle 13 is formed in the form of a socket according to the already mentioned DE-A1 196 08 245 and therefore has the front side two flat plug receptacles 14 and a round plug receptacle 15. The tab receptacles 14 have a substantially rectangular cross-section. The Rundstekkeraufnahme 15 is based on the plug cross section between the two Flachstecheraufnahmen 14 and has a circular cross-section. Rearward, the tab receptacles 14 are connected to two power lines of the electric cable 10. The round plug receptacle 15 is connected to a further line of the electric cable 10, which forms a signal line, for example. For controlling the electric suction motor in the vacuum cleaner 1.

The handle 7 has an air line 16 with both ends of the handle 7 formed connecting portions 17, 18. Furthermore, at both ends in the handle 7 electrical interfaces 19, 20 are formed, wherein the electrical interface 19 is plug-like manner of the formation of the connector receptacle 13 adapted adapted. On the rear side of the plug 21 formed here, it is connected to the opposite electrical interface 20 via a cable 21 '. With regard to the interface training mentioned here, reference is again made to the aforementioned DE-A1 196 08 247.

The connecting portion 17 of the air line 16 receives the header-side end 6 of the suction hose 3, which end 6 is formed like a sleeve and has a radially outwardly cushioning release button 22. The latter passes through an externally accessible bore 23 of the connecting portion 17. In this way, a connection between the suction hose 3 and handle 7 is formed. The arrangement is chosen so that the bore 23 and thus the part of the unlocking button 22 passing through it in the coupled state of the electrical parts, i. Electric clutch 11 and handle 7, is covered by the connector receptacle 13.

The handle 7 further has a power / control switch 24 in the form of a slide switch. This is used for switching on / off and / or for power regulation the suction motor of the vacuum cleaner 1 via the mentioned control line.

In the region of the connecting portion 18, the handle 7 has a releasable connection catch 25 for latching arrangement of the suction tube 8 or for the direct connection of an attachment. In which, formed in the region of the machine-side end 4 adapter piece 5 of the suction hose 3, a, in the direction of the suction hose 3 outwardly open receiving chamber 26 is formed outside the here formed Luftleitungs Anschlußabschnittes27. In this receiving chamber 26 enters the front side when connecting the adapter piece 5 to the vacuum cleaner 1, a vacuum cleaner-side electrical connector coupling 28, which is within the vacuum cleaner 1 in electrically conductive connection with the power connection. 2

In the receiving chamber 26 is for connecting the helical electric cable 10, a two tabs 29 and a round plug 30 exhibiting plug 31 can be used. For this purpose, the adapter piece 5 of the suction hose 3 has a chamber opening 32 for the passage of the plug-in part 31 or the electric cable 10 connected thereto.

In the embodiment shown, the end section of the electric cable 10 facing the insertion part 31 and the insertion part 31 are fastened to a sleeve-like receiving sleeve 33. In this fastening region, the receiving sleeve 33 simultaneously forms a chamber cover 34.

The inner diameter of the receiving sleeve 33 is selected larger than the outer diameter of the suction hose 3 and that of a substantially cylindrical portion of the adapter piece. 5

In a situation as shown in FIGS. 1 to 12, the receiving sleeve 33 is slid over a portion of the adapter piece 5, wherein the length of the receiving sleeve 33 is selected so that it still envelops a portion of the machine-side end 4 of the suction hose 3. For fixing the receiving sleeve 33 to the adapter piece 5, for example, a clip connection, not shown, may be selected.

Is, as shown in FIGS. 1 to 7, a configuration chosen in which a suction with an electrically driven attachment is to take place, then the two ends of the electric cable 10 are in plug arrangement to the respective recordings in the handle 7 and in the Adapter piece 5, whereby the electrical connection for the attachment 9 is given. If, however, a non-electrical attachment, such as a Fensterputzvorsatzgerät used - which can be connected directly to the suction hose 3 without the interposition of the handle 7 - so is in particular in such wet cleaning devices in operation a voltage ready holding electric clutch 11 to remove from this device locally , Consequently, if the plug coupling between the plug receptacle 13 and a plug associated with it - in the illustrated embodiments, the plug 21 in the electrical interface 19 of the handle 7 - solved, it is automatically a withdrawal of the suction hose 3 helically surrounding electrical cable 10. This retraction effect is supported by an internal in the electric cable 10 spring force. Next is a slight sliding of the electric cable 10 on the suction hose. 3 given by the relative to the outer diameter of the suction hose 3 enlarged inner diameter of the guide ring 12.

The, the compressed length of the electric cable 10 length adjusted, the free end conically tapered receiving sleeve 33 receives the entire electrical cable 10 on the outside. For the latching support of the guide ring 12 of the electric clutch 11, this can be manually pushed over a, formed at the free end of the receiving sleeve 33, collar-shaped Rastausformung 35. The electric cable 10 is securely restrained on the receiving sleeve 33 in this kinked position.

Next it can be seen that only after deduction of the electric clutch 11 from the handle 7, the release button 22 is released to release the suction hose 3.

The receiving sleeve 33 serves as a cable backup and cable positioning, as well as assembly / disassembly help. The recorded on this sleeve 33 electric cable 10 forms together with the receiving sleeve 33 a removable from the suction 3 electrifying module 36. If, for example, no electrification of attachments needed, this electrifying module 36 is completely removable from the suction hose 3. For this purpose, the receiving sleeve 33 is withdrawn in the simplest way, together with, carried by this electric cable 10, wherein the arranged insertion part 31 leaves the receiving chamber 26 of the adapter piece 5. Thus, at the same time the electrical connection interface to the vacuum cleaner 1 is removed (see, Fig. 13 to 15). The now exposed chamber opening 32 is hereafter closed by a separate cover 37.

This process is always reversible in the simplest way, this by the compact electrifying module 36, which can be easily pushed over the suction hose 3 in the direction of the adapter piece 5, wherein the insertion part 31 having end almost automatically the receiving chamber 26 finds and hereafter the electrical connection interface to the vacuum cleaner 1 forms.

Alternatively, receiving sleeve 33 and electric cable 10 with this plug-in part 31 can also be separated or pushed off one another. As an alternative, the receiving sleeve 33 can also be a fixed component of the machine-side end 4 of the suction hose 3 or of the adapter piece 5.

The handle 7 shown in a detail view in FIG. 16 can not only be used in combination with a vacuum cleaner 1. Characterized in that this handle 7 in addition to the two end-trained connecting portions 17 and 18 for the air line 16 further each having an electrical interface 19, 20, this is also only for the connection of electrically operated, no suction bring attachments used. For this purpose, an electric coupling 39 provided with a mains cable 38 is plugged into the electrical interface 19 forming a coupling receptacle. The power supply 38 otherwise has a conventional power plug 41. Preference is given here an electrical connection cable according to the known from DE-A1 196 08 245 embodiment.

On the connecting portion 18 is directly, or as shown with the interposition of a suction tube 8, a header, for example in the form of a training brush 40, attached, at the same time a vorsatzgeräte- or suction pipe-side electrical connector is plugged into the electrical interface 20. As a result, the incorporation brush 40 is supplied with power via the power cable 38, the grip 7 and, if appropriate, via the suction tube 8 having the corresponding electrical cable.

According to this embodiment can be incorporated in the simplest way by means of the electric attachment, for example, a cleaning agent in upholstery or carpets. Since no suction air flow is desired in this work, can be operated without vacuum cleaner 1 by the inventive design, the attachment, here the incorporation brush 40. This results in a simple, user-friendly handling.

As already mentioned, the attachment can also be arranged directly on the handle 7, which in addition to the handling technology advantageous effect still results in a smaller overall size, which further facilitates, for example, an oversoil work.

All disclosed features are essential to the invention. The disclosure of the associated / attached priority documents (copy of the prior application) is hereby also incorporated in full in the disclosure of the application, also for the purpose of including features of these documents in claims of the present application.

Claims (15)

1. Airflow hose, in particular a suction hose (3), for example for a vacuum cleaner (1) or an adaptor for cleaning windows (9), having an electrical cable (10) guided on the outside on the hose, the hose (3) having a machine end (4) and an adaptor end (6), characterized in that the electrical cable (10) surrounds the hose (3) loosely in the manner of a coil, in that the electrical cable (10) is releasably connected to the adaptor end (6) of the hose (3) by means of an electrical coupling (11), and in that after release of the electrical coupling (11), retraction of the electrical cable (10) is initiated up to a compressed length of the cable which is retained on the hose (3).
2. Airflow hose according to Claim 1, characterized in that the electrical cable (10) has an inherent spring force such that when the electrical cable (10) is released from the adaptor end (6), retraction to the machine end (4) is effected.
3. Airflow hose according to Claim 1, characterized in that at the adaptor end (6) of the hose (3), the electrical cable (10) is to be connected directly to the adaptor (9).
4. Airflow hose according to Claim 1, characterized in that guidance for the electrical coupling (11) is effected by a guide ring (12).
5. Airflow hose according to Claim 4, characterized in that the guide ring (12) has an enlarged internal diameter compared with the outer diameter of the hose (3).
6. Airflow hose according to one or more of Claims 4 or 5, characterized in that on the guide ring (12), a plug receiver (13) connected to the electrical cable (10) is connected.
7. Airflow hose according to Claim 1, characterized in that in a coupling position, the electrical coupling (11) engages over an unlocking button (22) of the adaptor end (6) of the hose (3) for release of the hose from the adaptor (9).
8. Airflow hose according to Claim 1, characterized in that at the machine end (4) of the suction hose (3), the electrical cable (10) is held in plug-in manner in an adaptor portion (5) of the suction hose (3).
9. Airflow hose according to Claim 1, characterized in that a plug-in part (31) of the electrical cable (10) is at the same time the electrical interface to an electric motor or the like.
10. Airflow hose according to Claim 8, characterized in that a receiver sleeve (33) for the electrical cable (10) is provided, associated with the machine end (4) of the hose (3), the sleeve being for receiving the electrical cable (10) on the outside of the sleeve.
11. Airflow hose according to Claim 10, characterized in that the receiver sleeve (33) is formed as a cylinder.
12. Airflow hose according to one or more of Claims 10 or 11, characterized in that on the receiver sleeve (33), there is provided a retaining formation (35) for latching retention of the guide ring (12).
13. Airflow hose according to Claim 1, there being additionally provided a separate handle portion (7) for combination with the vacuum cleaner (1), the handle portion (7) having an air line (16) with connecting portions (17, 18) provided at each end of the handle portion (7), characterized in that at each end, the handle portion (7) has furthermore an electrical interface (19, 20) for connection to an electrical cable (10, 38) or an electrical connection in an adaptor (9, 40).
14. Airflow hose according to Claim 13, characterized in that the handle portion (7) has a power/control switch (24).
15. Airflow hose according to one or more of Claims 13 or 14, characterized in that the handle portion (7) has a releasable connecting latch (25).

Images