Suction cleaning attachment and stationary cleaning device for use in cleaning the interior of motor vehicles

Abstract

A suction cleaning attachment (1) of a cleaning device (2) for use in the interior cleaning of motor vehicles by means of a suction airflow is shown and described. The housing (5) has an internal suction channel (4) for guiding the suction airflow. The housing (5) has a handle (6) with a grip area (7) and a housing nozzle (8) with an end suction opening (9) of the suction channel (4). At least one lighting device (10) is provided with at least one light source (11) directed at least partially towards the suction opening (9). According to the invention, the light source (11) is arranged on the outside of the housing (5), and the lighting device (10) has at least one rechargeable battery (12) for supplying electrical power to the light source (11).

Description

[0001] The present invention relates to a suction cleaning attachment for a cleaning device for use in the interior cleaning of motor vehicles by means of a suction airflow. Furthermore, the present invention also relates to a stationary cleaning device for use in the interior cleaning of motor vehicles, comprising a suction cleaning attachment of the type according to the invention. The suction cleaning attachment is designed to be inserted into and held in a housing of the cleaning device when not in use. Finally, the suction cleaning attachment can be removed from the housing for interior cleaning of motor vehicles. The present invention also relates to the use of the suction cleaning attachment in a stationary cleaning device for the interior cleaning of motor vehicles, as well as to the use of the stationary cleaning device for the interior cleaning of motor vehicles by means of the suction airflow.

[0002] Stationary cleaning devices of the aforementioned type are also referred to as self-service or self-service vacuum cleaners, which are typically used in commercial settings, such as gas stations, car washes, workshops, and the like. A defining characteristic of a stationary cleaning device is a central or stationary vacuum cleaner system or operating unit, which includes the necessary technical components for operation, such as a blower to generate negative pressure and, if applicable, control and / or regulating devices or electronic components. The central vacuum cleaner system or operating unit is "stationary," meaning it remains essentially immobile or fixed in place on a surface or property during operation. Due to its "stationary design," the vacuum cleaner system is not moved or relocated for the majority of its operating time.Operating unit and / or blower device, with the exception of the hand-operated vacuum cleaning attachment, against the substrate.

[0003] The central vacuum system or operating unit is assigned at least one suction station or extraction point, preferably a multitude of suction stations or extraction points, for example, in a car wash or a commercially used cleaning facility for the interior cleaning of vehicles at designated suction stations or extraction points. The suction stations or extraction points are supplied with suction air centrally via the stationary vacuum system or operating unit. Each suction station is assigned a vacuum cleaning attachment, which is connected to the central vacuum system or operating unit via a hose. Dirt and / or particles can then be vacuumed from the vehicle's interior via the vacuum cleaning attachment or vacuum nozzle. The vacuum cleaning attachment is generally designed to vacuum up dirt and / or particles from a surface, such as the seats and / or floor mats.

[0004] The suction cleaning attachments in question have a housing with an internal suction channel for guiding the suction airflow, the housing comprising a handle with a gripping area and a housing nozzle with a suction opening at the end of the suction channel. This allows the dirt to be removed in a targeted and efficient manner from the vehicle interior.

[0005] Against this background, stationary cleaning devices of the type described above must be understood in contrast to mobile cleaning devices in the household sector, such as handheld vacuum cleaners, corded upright vacuum cleaners, robotic vacuum cleaners, or small vacuum cleaners, which are operated as self-contained or compact cleaning units close to the body or are mobile, i.e., movable or attached to the user. Corded upright vacuum cleaners usually have a wheeled operating unit, whereas handheld vacuum cleaners or small vacuum cleaners are carried and operated by the user as self-contained or independent suction units.

[0006] In practice, the use of stationary cleaning devices presents problems when cleaning the interiors of vehicles. Many areas inside a vehicle are either inaccessible or difficult to reach, meaning they cannot be cleaned properly or at all. This applies, for example, to the area between the car seats, as well as to areas that are awkwardly shaped or difficult to access. Consequently, efficient extraction of dirt particles from these areas is either impossible or extremely difficult. Furthermore, these awkwardly shaped or hard-to-reach areas are often difficult to see, so dirt present in these areas often goes unnoticed.

[0007] In practice, handheld and upright vacuum cleaners used in households are known to have a floor nozzle with a light source at the front, illuminating the area in front of the nozzle as it moves across the floor. However, such illumination is only practical for cleaning flat floors in the home and is incompatible with the intended use of cleaning motor vehicles and the aforementioned awkwardly shaped or difficult-to-access areas in the vehicle interior.

[0008] In vacuum cleaning attachments of the type mentioned above, it is also known to arrange a lighting device with a light source inside the housing or in the suction duct. The light source is powered via a cable from the central or stationary vacuum system or operating unit. However, a disadvantage of this approach is that, due to the arrangement of the light source inside the suction duct, a high degree of soiling of the light source is observed. Furthermore, the cable-based power supply via the central vacuum system is prone to faults and maintenance issues. The vacuum cleaning attachments also require extensive modifications to be equipped with the light source in the suction duct and to connect it to the central vacuum system, which is time-consuming and costly. Moreover, when the light source is arranged inside the housing or...The suction channel no longer provides illumination of the suction area as soon as the suction opening is attached or the suction opening is inserted into particularly narrow areas.

[0009] The object of the present invention is to avoid or at least substantially reduce the aforementioned disadvantages of the prior art. In particular, the object of the present invention is to provide a vacuum cleaning attachment that enables user-friendly, improved, and efficient interior cleaning of motor vehicles.

[0010] The aforementioned problem is solved according to the invention at least essentially by the fact that the light source, which is directed at least partially, preferably substantially, towards the suction opening, is arranged on the outside of the housing and that the lighting device has at least one, in particular rechargeable, accumulator or an electrical storage device for supplying the light source with electricity.

[0011] In other words, when the suction cleaning attachment is in use, the light source is exposed on the outside of the housing or located outside the suction channel and is preferably permanently connected to the housing, more specifically to the housing nozzle. By directing the light source, or rather the light beams emitted by the light source, towards the suction opening, targeted illumination of the areas to be cleaned, particularly those that are difficult to access, is possible. Thus, the illumination of the areas to be cleaned is directly linked to the suction opening, so that the areas illuminated by the light source are always coupled to the movement or orientation of the suction opening. In this way, the suction opening, or rather the light source, can be directed precisely at hard-to-reach areas, illuminating them and simultaneously cleaning them with the suction airflow.This significantly increases the cleaning efficiency of the cleaning device compared to the state of the art, as dirt in hard-to-reach or poorly lit areas can be detected and removed accordingly.

[0012] Due to its external mounting on the housing, the light source is independent of the suction duct and / or connected to the suction cleaning attachment. The external connection of the light source to the housing can be implemented very simply from a design perspective.

[0013] In addition to the arrangement of the light source on the outside of the housing, the invention also provides that the lighting device has at least one, in particular rechargeable, accumulator for supplying power to the light source. Accordingly, the power supply to the light source is ensured by the vacuum cleaning attachment itself or by the accumulator connected to it, and is thus decoupled or independent from a central vacuum system or operating unit of the stationary cleaning device connected to the vacuum cleaning attachment. An external power supply via a power supply unit connected to the vacuum cleaning attachment, for example via the central or stationary vacuum system or the central operating unit, is therefore unnecessary.

[0014] Therefore, the lighting device designed according to the invention can be flexibly and efficiently connected to existing vacuum cleaning attachments without requiring complex modifications to the vacuum cleaning attachment itself or to other components of the stationary cleaning device. This has proven particularly advantageous in commercial environments such as car washes or large filling stations, where a large number of suction points are provided.

[0015] Preferably, the lighting device is arranged as a component unit, or the light source and the accumulator are arranged as a technically combined group on the outside of the housing, in particular the housing nozzle.

[0016] In this context, it is particularly advantageous that the lighting device has at least one lighting unit on the outside of the housing, preferably on the housing nozzle, which is at least partially detachable from the housing, or is designed as a separate lighting unit which is separable from the housing, preferably from the housing nozzle, in particular wherein the lighting unit comprises the accumulator, the light source and, most preferably, at least one circuit board electrically connected to the accumulator and / or to the light source.

[0017] Connecting the lighting device to the outside of the housing, preferably the housing nozzle, is structurally simple to implement, especially compared to the solution known from practice where the light source is connected inside the suction duct. Due to the free accessibility on the outside of the housing or housing nozzle, installation is significantly simplified.

[0018] In other words, the lighting unit is detachably and / or separately replaceable arranged on the outside of the housing. In particular, the lighting device has a lighting unit that is completely detachable from the housing. The components of the lighting unit, preferably the accumulator and / or the light source and / or the circuit board, can be separated from one another or detached separately from the housing, preferably from the housing nozzle, for example by positive locking and / or friction locking, in particular by screwing and / or snapping. This allows for the replacement of the respective component of the lighting unit as needed, for example for maintenance and / or repair purposes. This ensures reliable operation of the suction cleaning attachment according to the invention.

[0019] However, as an alternative to the separate removal of the components of the lighting unit, it can also be provided that the lighting unit is designed as a separate, self-contained unit that can be detached from the housing, preferably from the housing nozzle.

[0020] In this embodiment, the components of the lighting unit, preferably the accumulator, the light source and, particularly preferably, the circuit board, are combined as a separately or self-contained interchangeable unit in a common or compact housing or base body.

[0021] Then, as needed, the lighting unit can be removed from the vacuum cleaning attachment or from the housing, preferably from the housing nozzle, as a reusable or self-contained unit and connected to a suitable charging station, for example to charge the battery.

[0022] In particular, a sufficient number of lighting units with charged batteries can always be kept on hand, ready to be connected to the appropriate vacuum cleaning attachments as needed. This ensures that, especially in industrial settings, a sufficient number of operational vacuum cleaning attachments with charged batteries are always available. Furthermore, the design of the lighting system as a separately detachable unit simplifies the maintenance and operation of the stationary cleaning device.

[0023] Preferably, the lighting device or lighting unit has a cover that can be detachably connected to the housing, preferably the housing connector, to cover the battery and / or the light source and / or the circuit board. This allows the light source and / or the battery and / or the circuit board to be easily and readily accessible for maintenance and / or repair purposes as needed. The detachable connection of the cover to the housing can be implemented in a variety of ways known to those skilled in the art, for example, by snap-fit ​​and / or screw connections.

[0024] It is particularly preferred that the lighting device has a circuit and / or is designed such that the light source remains illuminated during use of the vacuum cleaning attachment. This allows for easy operation and ensures sufficient illumination of the areas or surfaces to be cleaned throughout the entire usage period or vacuuming process. However, it is also possible for the user to switch the light source on or off as needed during operation.

[0025] The intended use mode is during interior cleaning of the vehicle, in which the vacuum cleaning attachment is held by the user at the handle on the outside of the housing and guided by hand, with the suction opening leading, to clean the interior of the vehicle. The automatic and continuous activation of the light simplifies handling, eliminating the need for any switching devices for manually deactivating or activating the light, thus contributing to a simple design of the vacuum cleaning attachment.

[0026] The lighting device can have at least two contacts for electrical interaction with mating contacts of the housing, preferably wherein the contacts are arranged on the outside and, in particular, on the top of the lighting device. Accordingly, the contacts are arranged or exposed on the outside or top so that, in the non-use state, the contacts of the vacuum cleaning attachment are connected to the corresponding mating contacts of the housing and the accumulator is charged when the vacuum cleaning attachment is not in use.

[0027] The non-use state is accordingly provided before and after the interior cleaning of the motor vehicles. In particular, the vacuum cleaning attachment is arranged in the housing of the stationary cleaning device when not in use. The housing preferably has mating contacts on its inside that correspond to the contacts for electrical contact with the contacts, so that the accumulator is charged when the vacuum cleaning attachment is not in use or when it is charging.

[0028] This ensures efficient charging of the battery and thus reliable illumination during use, as the time outside the cleaning period, i.e. during the non-use state, is used specifically and efficiently to charge the battery.

[0029] In this context, it is particularly important that at least one recess extending from a contact towards the suction opening, preferably across the entire top of the lid and / or towards the suction opening to the end of the lid, is provided on the upper surface of the lid. The recess is specifically designed to engage with or receive a corresponding mating contact. This ensures a frictionless interaction between the mating contact and the lid, thereby preventing or at least reducing wear on the mating contact. This is particularly important when inserting or removing the suction cleaning attachment into or out of the lid.from the quiver is advantageous because the counter contact is arranged within the recess when inserting into or removing from the quiver, thus avoiding direct contact between the counter contact and the top of the lighting device or the lid.

[0030] Furthermore, at least one contact can be designed as a spring-loaded ball that at least partially protrudes from the lighting device and / or the cover. When interacting with the mating contact, the contact can be displaced against the spring force into the cover or towards the suction channel. This ensures reliable contact between the contact and mating contact and ultimately efficient charging of the accumulator as a result of the electrical contact between the contact and the mating contact within the housing. The spring force on the ball is preferably provided by a contact spring or other resilient means, in particular wherein the contact spring or spring element is electrically conductive. The ball is electrically connected to the circuit board via the contact spring or spring element.

[0031] Preferably, the accumulator is arranged between the light source and the contacts on the circuit board. The light source is preferably oriented towards the suction opening, and the contact is oriented or arranged on the circuit board opposite the light source, i.e., in the direction of the handle.

[0032] In other words, the contact on the top of the lid is held, preferably by means of a positive and / or force-fit connection, by means of the spring means or the contact spring, preferably in such a way that the contact protrudes as a pressure contact in the operating state of the suction cleaning attachment relative to the top of the lid under spring load.

[0033] It has proven advantageous to arrange the lighting device on the housing nozzle, particularly at the transition area between the nozzle and the handle. It is especially preferred that the lighting device be arranged on the housing nozzle such that the distance between the light source and the suction opening is at least 60%, preferably at least 70%, of the distance between the suction opening and the handle and / or the handle area. This leaves the majority of the housing nozzle free of the lighting device, thus facilitating access to hard-to-reach areas from the suction opening. Therefore, external mounting of the lighting device or lighting unit does not impair the accessibility or handling of the vacuum cleaning attachment.

[0034] According to a further advantageous embodiment, the housing nozzle has two opposing flat sides extending from the suction opening, preferably with the flat sides transitioning into a circular cross-section of the suction channel at a transition area to the handle. Particularly preferably, the lighting device is arranged on at least one flat side, preferably adjacent to a transition area to the handle. The flat side structurally provides a robust and suitable contact surface for the lighting device, thus enabling a correspondingly secure connection of the lighting device to the housing nozzle in this area.

[0035] According to a particularly preferred embodiment, at least two lighting devices are provided, preferably arranged opposite each other on the housing nozzle, in particular on opposite flat sides of the housing nozzle. This illuminates the area to be cleaned or the area of ​​the suction opening from both sides. This in turn improves the illumination of even particularly difficult-to-access areas, which in turn leads to a further improved cleaning result when using the suction cleaning attachment according to the invention.

[0036] The housing, housing nozzle, and / or handle are preferably made of a plastic, in particular a thermoplastic. Polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), and / or polystyrene (PS) are especially preferred materials. The aforementioned components of the vacuum cleaning attachment can be made of these materials. Preferably, the entire vacuum cleaning attachment is made of plastic. The aforementioned plastics are characterized by high strength.

[0037] It should be noted that the handle is preferably detachable from and / or movable relative to, and preferably rotatable with, the housing. Accordingly, the housing is preferably designed in multiple parts, with the lighting device preferably located on the housing, which is movable relative to, and preferably rotatable with, and / or detachable from the handle. This allows the housing or lighting device to be decoupled from the handle as needed for maintenance and / or repair purposes. The handle is preferably locked to the housing. Alternatively or additionally, the handle cannot be detached from the housing without damage, particularly after being locked in place. The handle may, but need not, be rotatable relative to the housing.

[0038] The housing preferably features a nozzle that is detachably arranged from the housing nozzle, with the nozzle forming the suction opening. The nozzle is preferably slid onto the housing nozzle at its end. The nozzle is preferably a wear part, as it is typically in contact with the surfaces to be cleaned during operation and is thus subject to friction. After a certain amount of wear, which can preferably be indicated by a mark on the nozzle, the nozzle can be replaced with an unused or new one. This allows for simple, low-maintenance, and / or easy maintenance of the suction cleaning attachment without the need for complex modifications to the housing nozzle or the connected lighting device.

[0039] In particular, a stop, either shaped like a step or projecting beyond the handle and / or the lighting device, is provided on the outside of the housing between the suction opening and the handle area to interact with an edge of the housing. When not in use, the suction cleaning attachment thus rests axially against the edge of the housing with its stop. This ensures easy and safe handling and guarantees reliable axial alignment between the contacts and their mating contacts.

[0040] Furthermore, the present invention also relates to a stationary cleaning device for use in the interior cleaning of motor vehicles. The cleaning device comprises a vacuum cleaning attachment according to at least one of the embodiments described above. The stationary cleaning device also includes at least one holder for storing the vacuum cleaning attachment in the non-use or charging state – that is, before or after the interior cleaning of a vehicle. Preferably, the cleaning device has a central or stationary vacuum system or operating unit with a blower for generating a vacuum, the blower being connected to the suction channel via a hose (suction hose). The blower ultimately provides the suction airflow required for interior cleaning of vehicles, which is directed along the suction channel.

[0041] Preferably, the stationary cleaning device has a plurality of suction cleaning attachments, in particular more than 5, more preferably more than 10, and in particular more than 20, suction cleaning attachments, preferably wherein each suction cleaning attachment is assigned a suction point or suction area, or vice versa. In this case, the suction cleaning attachments are connected to the central vacuum system or central operating unit of the cleaning device via appropriate hoses. Furthermore, a housing is provided for each suction cleaning attachment. Preferably, the power supply to the housings is provided via the vacuum system or the central operating unit, wherein the vacuum system has at least one corresponding control and / or regulating device for this purpose.

[0042] In this context, it is understood that all the aforementioned preferred embodiments and the advantages of the invention also apply equally to the stationary cleaning device according to the invention. To avoid unnecessary repetition, further explanations are omitted, and reference is expressly made to the preceding explanations.

[0043] According to the invention, the cleaning device has at least one mating contact arranged in the housing and connected to a power source for electrical contact with the contact of the suction cleaning attachment, so that the accumulator is charged when the suction cleaning attachment is not in use, i.e., when it is in the holding state and / or charging state inserted in the housing. In the present case, the non-use state is therefore a charging state of the accumulator or the suction cleaning attachment.

[0044] When the vacuum cleaning attachment is in use, at least one contact, preferably both contacts, of the attachment makes electrical contact with a corresponding contact, preferably both contacts, of the holder. This electrical contact charges the battery. In other words, the holder acts as a charger for the vacuum cleaning attachment's battery.

[0045] In particular, the quiver may have a coding device designed so that the suction cleaning attachment can only be inserted into the quiver, especially in a defined rotational position, in such a way that the contact electrically contacts the mating contact.

[0046] The coding device, which can also be understood and / or designed as an insertion and / or positioning device, ensures that the suction cleaning attachment can only be inserted into the holder, and that the charging state is only present when the contacts of the suction cleaning attachment are correctly oriented with the corresponding contacts of the holder. Therefore, insertion of the suction cleaning attachment into the holder is only possible when the attachment, particularly the housing nozzle, is in the correct rotational position relative to the holder.

[0047] The coding device preferably has a coding opening which interacts with the suction cleaning attachment, preferably with the lighting device and / or with the housing nozzle in such a way that it is ensured that the suction cleaning attachment or the housing nozzle can only be inserted completely into the quiver in such a way that, in the non-use state or in the charging state, contact between the contacts and the mating contacts in the quiver is ensured.

[0048] In the non-use state or when charging, the contacts of the suction cleaning attachment and the mating contacts of the holder are arranged opposite each other. The mating contacts are preferably designed as sliding contacts and / or as elastically reversible and / or spring-like mating contacts. In conjunction with the preferably spring-loaded, spherical contacts of the suction cleaning attachment, this enables robust and / or reliable electrical contact through the force-fit interaction of the contacts and mating contacts.

[0049] Preferably, the coding opening or insertion and / or positioning opening is at least partially bounded by two opposing, preferably flat, coding surfaces or insertion and / or positioning surfaces, wherein, preferably, at least two mating contacts are arranged on one, preferably on each, coding surface or insertion and / or positioning surface. The coding surfaces or insertion and / or positioning surfaces interact with the lighting devices, in particular with the covers or top surfaces of the lighting devices, such that the suction cleaning attachment or the housing nozzle is held essentially without play and / or rotationally fixed and / or fixed in the transverse direction, i.e., only in the axial direction towards out of the quiver, in the non-use state or in the charging state within the quiver.

[0050] According to a particularly preferred embodiment, the mating contact(s) is / are recessed relative to the coding surface or insertion and / or positioning surface, for example by at least 0.2 mm. The contacts of the lighting device can then be spring-loaded into the associated coding surface and make electrical contact with the recessed mating contacts. With this solution, the previously described recesses on the cover of the lighting device can be omitted, since the mating contacts do not come into contact with the cover. This variant with the recessed mating contacts also prevents wear on the surface of the lighting device.

[0051] The quiver can, in particular, comprise a quiver nozzle and a quiver section. The quiver nozzle can be inserted into the quiver section and, in particular, can project beyond the quiver section at the end face facing the suction cleaning attachment. The quiver nozzle and the quiver section can be positively and / or frictionally connected to one another, in particular being pluggable into one another. The quiver section can preferably be designed as a cylindrical hollow body, which is particularly preferably open at the end faces. The quiver nozzle can, in particular, include the coding device and / or the mating contacts. The quiver nozzle serves, in particular, for the electrical contacting of the lighting device. Because the quiver nozzle and the quiver section are optionally detachable from one another, the quiver section can be equipped without electrical functionality, which can simplify the manufacture of the quiver.

[0052] The mating contacts can be supplied with electrical energy via conductors. These conductors can be routed through the interior of the socket section as needed, thus protecting them from external influences or damage.

[0053] The quiver section can be designed to accommodate at least part of the suction cleaning attachment.

[0054] In a further preferred embodiment, the quiver can have a base section at its end opposite the open end, which is designed to receive the suction cleaning attachment. The base section can particularly preferably be detachably connected to the quiver section. Preferably, the quiver section can be at least partially attached to the base section and thus connected to it, in particular, by a positive fit and / or friction fit. The base section can, in particular, form a closed end face of the quiver. Specifically, the base section projects beyond and / or away from the open end face of the quiver section facing the base section, or is aligned with it. Accordingly, the base section can, in particular, have a first tapered area for arranging and attaching the quiver section and a second area projecting from the first area.

[0055] In the base section, particularly in the second part of the base section, charging electronics for supplying power to the mating contacts may be provided. Specifically, the wiring connected to the mating contacts is also connected to the charging electronics. The charging electronics may, in particular, have a power connection located outside the housing for supplying power to the charging electronics. Specifically, the charging electronics may be supplied with an electrical voltage of 230 V ± 20% and / or 110 V ± 20%. The voltage supply to the charging electronics may, in particular, depend on the respective power grid. The charging electronics may also be configured to supply the mating contacts and / or the battery of the lighting unit with the required electrical voltage.For this purpose, the charging electronics can, in particular, include a voltage converter that converts the excessively high voltage supplied to the charging electronics to lower voltage values ​​for supplying the battery. This lower voltage can then be transmitted to the battery, particularly through the interaction between the contacts and their mating contacts.

[0056] In particular, the charging electronics are firmly, preferably by a material bond, connected to the base section. Therefore, the charging electronics can be arranged in the base section in a way that prevents them from being lost.

[0057] Preferably, the base section has a compensating element on its end face opposite the socket section for adapting and / or positioning it on different surfaces. The end face opposite the socket section can be open or closed. The compensating element allows the socket to be positioned on various surfaces, particularly compensating for unevenness on a flat surface. The compensating element can also be designed to protect the charging electronics from external influences such as moisture, dirt, etc.

[0058] The leveling agent preferably has a groove in the edge of the base section on the end face facing away from the socket section and a seal, in particular a ring seal, which can be inserted into or is inserted into the groove and is preferably made of silicone, natural rubber and / or synthetic rubber. The seal can position the base section against a flat surface with uneven areas and, in particular, compensate for these unevennesses as required.

[0059] Furthermore, the base section can have mounting points, in particular screw holes, for attachment to a surface, especially for force-fit attachment. By firmly attaching the base section to a surface, the entire quiver assembly can be secured to that surface. Specifically, the quiver section can be connected to the base section, and the quiver end can be connected to the base section. Therefore, the base section can support the entire quiver assembly on a surface to which it is connected.

[0060] The housing, particularly its base section, preferably includes a display element, in particular a light source, preferably an LED. The display element can indicate the status of the suction cleaning attachment in the housing and / or whether the battery of the lighting device is charging and / or whether the charging electronics are powered. The aforementioned states can be indicated, in particular, by a color, for example, green and red. Particularly preferably, the display element informs the user whether the battery of the lighting device is currently being charged. When the charging process of the battery of the lighting device is complete, this can be indicated to the user, for example, by a color change of the display element.The user therefore preferably receives information about the battery's charge level and can thus use the vacuum cleaning attachment optimally.

[0061] Furthermore, in a particularly preferred embodiment, it is provided that the quiver and / or the suction cleaning attachment, preferably the circuit board, has a circuit for deactivating the light source when the suction cleaning attachment is not in use.

[0062] Furthermore, a control unit can preferably be provided which includes charging electronics to ensure deep discharge and / or overcharge protection. Overcharging of the battery can also be prevented accordingly thanks to the charging electronics.

[0063] The stationary cleaning device has a central vacuum system or a central operating unit in which all technical components necessary for the operation of the cleaning device, such as the blower system or control and / or regulating devices or related electronic components, are housed.

[0064] To supply the vacuum cleaning attachment with suction air, a hose connected to the central vacuum system or the blower unit is provided, preferably with the vacuum cleaning attachment being connected to the hose at one end facing away from the suction opening or at the handle. A positive-locking and / or non-positive-locking connection is preferably provided.

[0065] The blower unit is designed in such a way that a negative pressure of between 0.3 and 0.8 bar, preferably between 0.4 and 0.6 bar, prevails in the suction duct during suction operation. This negative pressure ensures effective suction of the dirt particles.

[0066] Furthermore, in a particularly preferred embodiment, the central vacuum system has a control device that supplies the charging current to the quiver for charging the accumulator.

[0067] Alternatively or additionally, the control unit is designed to deactivate the light source when it is not in use, when charging, and / or when inserted into the holder. The control unit for deactivating the light source when it is not in use or when charging can be part of the holder or the vacuum cleaning attachment, in particular the lighting unit, and most preferably the circuit board.

[0068] Preferably, a plurality of vacuum cleaning attachments, preferably at least two, can be connected to the central vacuum system or the blower unit. It is understood that the energy supplied to the blower unit can ultimately be reduced as soon as at least one vacuum cleaning attachment is arranged in a housing. According to the invention, continuous vacuum operation can be provided, so that a pressure-tight seal between an edge of the housing and a stop on the vacuum cleaning attachment, which is preferably arranged on the handle, is advantageous with regard to energy and / or operating costs.

[0069] According to a further preferred embodiment of the present invention, the quiver and / or the quiver section is designed as a hollow cylinder and is in particular closed at the end, preferably wherein the coding device is arranged at the open end of the quiver.

[0070] In particular, the housing is provided with a rim for interaction with the stop of the suction cleaning attachment in the non-use state, preferably resulting in a pressure-tight seal between the suction cleaning attachment and the housing. The rim, with its interacting stop, ensures secure axial fixation of the suction cleaning attachment relative to the housing in the non-use or loading state.

[0071] This ensures a secure alignment between the contacts and their mating contacts and facilitates handling.

[0072] Furthermore, it is understood that the aforementioned intervals and range limits include any intermediate intervals and individual values ​​and are to be considered as being disclosed as essential to the invention, even if these intermediate intervals and individual values ​​are not specifically stated.

[0073] Further features, advantages, and applications of the present invention will become apparent from the following description and from exemplary embodiments illustrated in the drawing and the drawing itself. All features described and / or illustrated, individually or in any combination, constitute the subject matter of the present invention, irrespective of their compilation in the claims or their cross-reference.

[0074] It shows Fig. 1 a schematic perspective view of a suction cleaning attachment according to the invention, Fig. 2 a schematic perspective view of a lighting device of the suction cleaning attachment according to the invention with the cover removed, Fig. 3 a schematic perspective view, top view of a cover of the lighting device, Fig. 4 a further perspective view, bottom view of the in Fig. 3Fig. 5 shows a schematic perspective view of a further embodiment of a lighting device designed as an independent lighting unit of the suction cleaning attachment according to the invention, Fig. 6 shows a schematic side view of the suction cleaning attachment according to the invention, Fig. 7 shows a schematic representation of a cleaning device according to the invention, Fig. 8 shows a schematic perspective view of a quiver of the cleaning device according to the invention, Fig. 9 shows a schematic cross-sectional view of the in Fig. 8Fig. 10 shows a schematic cross-sectional view of the suction cleaning attachment used in the quiver, Fig. 11 shows a schematic perspective view of a further embodiment of the stationary cleaning device according to the invention with a central vacuum system, Fig. 12 shows a schematic perspective exploded view of a quiver according to the invention, Fig. 13 shows a schematic perspective view of a further embodiment of a quiver mounted according to the invention, and Fig. 14 shows a schematic perspective detail view of a quiver nozzle according to the invention with the suction cleaning attachment according to the invention inserted therein.

[0075] Fig. 1Figure 1 shows a suction cleaning attachment 1 of a cleaning device 2 for use in the interior cleaning of motor vehicles by means of a suction airflow. The suction cleaning attachment 1 is designed to be inserted into and held in a holder 3 when not in use.

[0076] A holder for the suction cleaning attachment 1 in the quiver 3 is in Fig. 10 The non-use state exists both before and after the interior cleaning of the motor vehicles, or when the suction cleaning attachment 1 is not used for interior cleaning. In this state, the suction cleaning attachment 1 can be placed in the holder 3, as shown. Fig. 10 be visible, deployed and maintained.

[0077] The suction cleaning attachment 1 has an internal suction channel 4 - as also shown from Fig. 10The suction channel 4 is formed within a housing 5 of the suction cleaning attachment 1, wherein the housing 5 has a handle 6 with grip area 7 and a housing nozzle 8, preferably detachable from and / or movable relative to the handle 6, with a suction opening 9 at the end of the suction channel 4.

[0078] Fig. 1 shows that the vacuum cleaning attachment 1 has a lighting device 10.

[0079] Advantageously, the suction channel 4 is tapered in the housing nozzle 8 towards the end suction opening 9, wherein the suction channel 4 has a substantially hollow cylindrical shape along the handle 6 and transitions at the point where it meets the housing nozzle 8 into a shape that is at least substantially slit-like and preferably tapers continuously towards the suction opening 9, as can also be seen from Fig. 6 is evident.

[0080] In the illustrated and preferred embodiment, the lighting device 10 has two light sources 11. However, it is also possible that only a single light source 11, for example in the form of a light strip, is provided. Furthermore, more than two light sources 11, or any number of light sources 11, can be provided. The light source 11 is preferably designed as an LED.

[0081] The light source 11 is directed at least partially towards the suction opening 9. This enables the area to be cleaned or the surroundings of the suction opening 9 to be illuminated by the light beam or cone emerging from the light source 11.

[0082] To prevent contamination of the light source 11 or the LED, to maintain the luminosity of the LED, and / or to minimize mechanical stress, a protective device (not shown in detail), in particular a cover that is at least partially transparent, can be connected to the light source 11. The light source cover and / or the protective device can be replaced periodically. The protective device can also be detachably connected to the housing 5, in particular by a snap-in connection.

[0083] Preferably, the light sources 11 can illuminate the areas in the vehicle interior to be vacuumed and / or cleaned in a targeted and purposeful manner. Advantageously, the light sources 11 shine beyond the suction opening 9 and are attached to the housing nozzle 8. This allows comparatively poorly lit areas in the vehicle interior, for example between the vehicle seats, to be illuminated by means of the light sources 11.

[0084] The lighting device 10 or the light source 11 are arranged on the outside of the housing 5 or the housing nozzle 8. This provides circumferential illumination of the housing nozzle 8 or the circumferential area of ​​the suction opening 9.

[0085] As shown by Fig. 1As can also be seen, the suction cleaning attachment 1 has a nozzle 40, with the suction opening 9 being formed on or in the nozzle 40. The nozzle 40 is detachably connected to the housing stub 8, in particular by a linear sliding connection. The nozzle 40 is designed as a wear part and is subject to increased wear in the area of ​​the suction opening 9 due to friction or direct contact with the surfaces to be suctioned or cleaned.

[0086] The nozzle 40 may have a wear indicator or marking (not shown in detail) to indicate when replacement of the worn nozzle 40 is necessary due to progressive abrasion. Without the nozzle 40, the wear of the suction cleaning attachment, particularly the housing nozzle 8, would necessitate its complete disposal. Depending on the intensity of use, this could occur after a relatively short period, such as several weeks (e.g., six weeks). This would necessitate the replacement or reconnection of the lighting devices 10 attached to the housing nozzle 8, which would be correspondingly time-consuming and costly if the entire housing nozzle 8 were replaced.

[0087] Fig. 2 shows that the lighting device 10 has a battery 12 for the electrical supply of the light sources 11.

[0088] The accumulator 12 is preferably a lithium-ion accumulator or a lithium accumulator and / or designed in a flat construction. In the illustrated and preferred embodiment, the accumulator 12 is in the form of a flattened cuboid or rectangular prism.

[0089] The lighting device 10 is arranged on the outside of the housing nozzle 8 and has at least one lighting unit 13 that is at least partially detachable from the housing 5 or from the housing nozzle 8.

[0090] In the illustrated and preferred embodiment, the lighting unit 13 comprises the accumulator 12, the light sources 11, and a circuit board 14 electrically connected to the accumulator 12 and the light sources 11. The circuit board 14 is designed as a printed circuit board or signal carrier for the accumulator 12 and the light sources 11. In particular, the circuit board 14 serves for the electrical control of the light sources 11, with the corresponding electrical supply being ensured via the accumulator 12. Simultaneously, the circuit board 14 also serves for the mechanical fastening, in particular detachable fastening, of the accumulator 12 and the light sources 11 to the housing connector 8.

[0091] In the illustrated and preferred embodiment, the light sources 11 are arranged adjacent to the accumulator 12 on the circuit board 14.

[0092] The circuit board 14 is detachably connected to the housing connector 8, for example by screws.

[0093] The lighting device 10 or the lighting unit 13 has a cover 15 which can be detachably connected to the housing nozzle 8 to cover the accumulator 12, the light source 11 and the circuit board 14.

[0094] As in Fig. 3As can be seen, the cover 15 has lighting openings 16 on its front side, or on the side facing the suction opening 9, in which the light sources 11 are at least partially received and / or held. In the operating state, the light sources 11 shine through the lighting openings 16 in the direction of the suction opening 9. At the same time, the light sources 11 are held within the lighting openings 16 on the cover 15. The cover 15 overlaps the accumulator 12 and the circuit board 14 with its front side and, preferably, with its two opposing side wall sections, or covers the accumulator 12 and the circuit board 14 from the front and / or side, preferably completely and / or up to the housing nozzle 8.

[0095] As in Fig. 2As shown, the lighting device 10 has two contacts 17 for electrical interaction with mating contacts 18 of the holder 3. The contacts 17 are supported on the circuit board 14, preferably spring-loaded and / or by means of contact springs 19. The contact springs 19 are electrically contacted with the circuit board 14. Thus, the contacts 17 are electrically connected to the circuit board 14 via the contact springs 19. However, it is understood that other, spring-elastic, and electrically conductive connecting means can be provided for connecting the contacts 17 to the circuit board 14 instead of the contact springs 19.

[0096] In the illustrated preferred embodiment, the contacts 17 are designed as spring-loaded spheres which project at least partially beyond the lighting device 10 and / or the cover 15, as shown in Fig. 6 illustrated.

[0097] The contacts 17 are arranged on a side of the circuit board 14 facing away from the light sources 11, preferably wherein the accumulator 12 is arranged between the light sources 11 and the contacts 17 on the circuit board 14, cf. Fig. 2 .

[0098] As shown by Fig. 3As can be seen, two contact openings 20 are provided on the upper side of the cover 15 to receive the contacts 17, such that the contacts 17, acting as pressure contacts or points, protrude partially from the upper side of the cover 15 through the contact openings 20 when in use, particularly under the influence of the spring force or the contact springs 19. Accordingly, the contacts 17 are exposed and / or accessible from the upper side of the cover 15 when in use. At the same time, the contact openings 20 form an axial stop for the contacts 17 when in use or when not charging. Therefore, the contact openings 20 have a smaller diameter, at least in the area of ​​the upper side of the cover 15, compared to the spherical contacts 17.

[0099] As also in Fig. 3As shown, recesses 21, in particular groove-shaped, are provided on the top of the cover 15 extending from the contacts 17 and towards the suction opening 9, preferably wherein the recesses 21 extend towards the suction opening 9 and / or to the front of the cover 15.

[0100] However, it should be noted that the recesses 21 are only one possible variant and are not necessarily required for the implementation of a smooth or low-wear connection between the contacts 17 and the mating contacts 18.

[0101] When the suction cleaning attachment 1 is inserted into the holder 3, the mating contacts 18 enter the recesses 21 from the front of the cover 15, preferably without contact or friction. In the fully inserted state, or in the non-use and / or charging state, the mating contacts 18 then make contact with the contacts 17 after the mating contacts 18 have completely passed through the recesses 21 in the direction of the contacts 17.

[0102] When the suction cleaning attachment 1 is pulled out of the holder 3, the mating contacts 18 can then, starting from the contacts 17 or after the electrical connection to the contacts 17 is broken, glide over the cover 15 along the recesses 21 without contact or friction. This effectively prevents wear of the mating contacts 18 or the cover 15 as a result of rubbing against each other when inserting or removing the suction cleaning attachment 1 into or out of the holder 3.

[0103] As shown by Fig. 4As can be seen, the cover 15 also has, extending from the contact openings 20, preferably cylindrical bearing sections 22 on its underside and / or projecting towards the circuit board 14 or the housing stub 8 for receiving the contact springs 19 and / or the contacts 17. When covered by the cover 15, the contacts 17 and the contact springs 19 engage with the bearing sections 22 on their underside. This ensures that the contacts 17 and the contact springs 19 are securely axially supported by the bearing sections 22.

[0104] For the detachable fastening of the cover 15 to the housing nozzle 8, a hook section 23 is provided on the underside of the front of the cover 15, which interacts with a complementary hook section provided on the housing nozzle 8, which is not shown in detail.

[0105] Accordingly, the cover 15 is hooked onto the housing fitting 8 at its front. It is understood, however, that corresponding connecting sections, for example hook sections, can also be provided on at least one longitudinal side and / or on the rear of the cover 15 to enable the cover 15 to be attached to the housing fitting 8. Other snap-fit ​​and / or clamp connections familiar to those skilled in the art can also be used to connect the cover 15 to the housing fitting 8. Ultimately, the cover 15 can be attached to the housing fitting 8 in a variety of ways.

[0106] In the illustrated and preferred embodiment, a fastening opening 24 is provided on the side opposite the front or rear of the cover 15, through which a fastening means 25, for example a screw, passes and is connected to the housing nozzle 8 in the fastened state, in particular screwed on.

[0107] At the in Fig. 5 In the illustrated embodiment of the suction cleaning attachment 1 according to the invention, the lighting device 10 is designed as a separate lighting unit 13 that can be separated from the housing nozzle 8. In other words, the lighting unit 13 is designed as a detachable or separately mountable and / or independently handleable interchangeable unit.

[0108] As an independent building unit or lighting unit 13, the lighting unit 13 comprises according to Fig. 5This includes all electrical or electrically operable components, in particular the light source 11, the accumulator 12, and the contacts 17 and / or circuit board 14. In the illustrated and preferred embodiment, the lighting unit 13 has a preferably all-around enclosing housing or a base body 26 in which the light source 11, the accumulator 12, the circuit board 14, and the contacts 17 are housed.

[0109] The base body 26 of the lighting unit 13 can be detachably connected to the housing socket 8, in the illustration example by a correspondingly indicated plug and / or snap connection 27, whereby the lighting unit 13 can be linearly pushed onto the housing socket 8 and can then be detachably fixed to the housing socket 8 by means of the plug and / or snap connection 7 on the housing socket 8.

[0110] However, it is understood that the solution using the hook sections, as previously explained with regard to the first embodiment, can also be implemented in the separately designed lighting unit 13.

[0111] As shown by the in Fig. 6 As can be seen in the schematic side view shown, the lighting device 10 or the lighting unit 13 is arranged at the transition area of ​​the housing nozzle 8 to the handle 6.

[0112] It is also evident that the distance between the light source 11 or the lighting device 10 and / or the lighting unit 13 and the suction opening 9 corresponds to at least 60%, preferably at least 70%, of the distance between the suction opening 9 and the handle 6 and / or the grip area 7. As a result, a large portion of the housing nozzle 8, extending from the suction opening 9, is free of the lighting device 10 or the lighting unit 13 and is therefore not increased in its external dimensions. This does not impair the cleaning of hard-to-reach areas, particularly in the area of ​​driver's seats, so that there is no loss of handling compared to conventional housing nozzles 8 or suction cleaning attachments not equipped with a lighting device 10.

[0113] In the illustrated and preferred embodiment, it is also provided that the housing nozzle 8 has two opposite flat sides 28, 29 starting from the suction opening 9, preferably wherein the flat sides 28, 29 transition into a circular cross-section of the suction channel 4 at the transition area to the handle 6.

[0114] The flat sides 28, 29 are preferably designed to taper continuously towards the suction opening 9.

[0115] The lighting devices 10 are arranged on opposite flat sides 28, 29. This enables a robust connection as well as almost circumferential illumination of the suction opening 9.

[0116] Accordingly, in the illustrated and preferred embodiment, two preferably identically designed lighting devices 10 or lighting units 13 are provided, which are arranged opposite each other on the flat sides 28, 29 of the housing nozzle 8.

[0117] Fig. 7 Figure 2 shows a stationary cleaning device 2 for use in the interior cleaning of motor vehicles. The cleaning device 2 has a suction cleaning attachment 1 according to one of the previously described embodiments. A blower 30 of the stationary cleaning device 2 is associated with the suction channel 4 and serves to generate a vacuum. The blower 30 is connected to the suction channel 4 of the suction cleaning attachment 1 via a hose 31.

[0118] In particular, the hose 31 is connected to the connection end of the suction cleaning attachment 1 or the handle 6 that is opposite the suction opening 9.

[0119] The blower unit 30 is preferably designed as a stationary unit or is fixedly and immovably connected to a surface for most of the operating time. Accordingly, the stationary cleaning device 2 is to be understood in contrast to mobile cleaning or suction devices, such as those used in the household sector as portable or mobile cleaning devices.

[0120] Fig. 8 shows a quiver 3 of the cleaning device 2 for holding the suction cleaning attachment 1 in the non-use state.

[0121] The quiver 3 has mating contacts 18 for interacting with the contacts 17 of the lighting device 13. The mating contacts 18 are preferably designed as sliding contacts.

[0122] However, it is understood that according to an embodiment not shown in detail, a reverse design of the contacts 17 and the mating contacts 18 can also be implemented, wherein the mating contacts 18 are designed as pressure points or pressure contacts and / or as spring-loaded contact balls and the contacts 17 are designed as sliding contacts.

[0123] When the vacuum cleaning attachment 1 is inserted into the housing 3, an electrical connection exists between the contacts 17 and the mating contacts 18, such that the accumulator 12 is charged when the vacuum cleaning attachment 1 is not in use or when it is charging. Accordingly, the housing 3 is connected to a power source (not shown in detail), which may preferably be part of the stationary control device 2 or the central vacuum system or operating unit.

[0124] The quiver 3 has a preferably cylindrical quiver housing 32, wherein the quiver housing 32 has an open end and a closed end, as shown in Fig. 9 This illustrates that the suction cleaning attachment 2 can be inserted or inserted into the quiver housing 32 via the open end.

[0125] Furthermore, the quiver 3 has, in particular at the open end of the quiver housing 32, a coding device 33 which is designed so that the suction cleaning attachment 1 can only be inserted into the quiver 3 in such a way that the contacts 17 electrically contact the mating contacts 18.

[0126] The coding device 33 has a coding opening 34 or coding geometry, which ensures that the housing nozzle 8, with the suction opening 9 leading, can only be fully inserted into the quiver 3 in such a way that the contacts 17 are in the correct orientation or alignment to the mating contacts 18 when inserted.

[0127] The coding aperture 34 is, as shown by Fig. 9 The area is visibly limited, at least partially, by two opposing, preferably flat, coding surfaces 35. The mating contacts 18 are arranged on or held on the coding surfaces 35.

[0128] The mating contacts 18 are recessed in the coding surfaces 35 and exposed via corresponding openings on the coding surfaces 35, preferably by at least 2 mm. When the suction cleaning attachment 2 is inserted, the contacts 17 then snap into the associated coding surfaces 35 in the area of ​​the mating contacts and thus make contact with the recessed mating contacts 18. The spherical contacts 17 are held in the openings on the coding surfaces 35 when snapped into place.

[0129] The suction cleaning attachment 2 is in the inserted state in the quiver 3 or in the charging state, as shown by Fig. 10As can be seen, the covers 15 of the lighting devices 10 are positioned opposite the coding surfaces 35. The distance between the opposing coding surfaces 35 is only slightly greater than the distance between the adjacent upper surfaces of the covers 15 of the lighting devices 10. This ensures that the lighting devices 10 and ultimately the housing nozzle 8 are held against the opposing coding surfaces 35 with essentially no play and / or are rotationally fixed and / or are fixed in the transverse direction, and are preferably movably held in the axial direction. This, in turn, enables precise and reliable contact between the contacts 17 and mating contacts 18. Furthermore, the vacuum cleaning attachment 1 is drawn into the inserted or non-used state and / or position by the vacuum present in the holder 3.

[0130] In the illustrated preferred embodiment, the suction cleaning attachment 1 has a stop 38 designed as a step, which preferably projects beyond the handle area 7 and / or the lighting device 10 and is designed or configured to interact with an edge 39 of the holder 3, preferably the coding device 33. The stop 38 is preferably located at the transition area from the handle 6 to the housing nozzle 8 and / or adjacent to the lighting device 10.

[0131] Preferably, the coding device 33 can be inserted into the open end of the housing 32. In addition to the coding surfaces 35, the coding opening 34 is bounded by circular sections that adjoin the coding surfaces 35 and are preferably designed to be complementary to the outer circumference of the housing stub 8 adjacent to the lighting devices 10. In this respect, the coding opening 34 is designed to be at least substantially complementary to, or precisely fitting to, the circumferential shape of the housing stub 8 in the area of ​​the lighting devices 10 connected thereto.

[0132] At the open end of the quiver housing 32, the coding device 33 can have an insertion section that is at least partially funnel-shaped.

[0133] The coding device 33 can have at least one funnel-shaped insertion section and / or guide section both at the open end of the quiver housing 32 and opposite it. This enables a defined insertion and withdrawal movement of the suction cleaning attachment 1 into and out of the quiver 3 and also prevents the nozzle 40 from being pulled off the housing nozzle 8.

[0134] In Fig. 9 It is also shown that at least one, and in the illustrated example two, cable guides 36 are arranged in the quiver housing 32. The cable guides 36 serve to direct the power supply lines for the mating contacts 18 within the quiver 23 or quiver housing 32.

[0135] In the illustrated and preferred embodiment, the conductors 36, originating from the coding device 33, are routed within the housing 32 and pass through the closed end of the housing 32 to a power source (not shown in detail). It is understood, however, that other design solutions for routing the conductors inside the housing 32, for example, ring channels or the like, can also be implemented. Furthermore, external cable routing outside the housing 32 is possible for supplying power to the mating contacts 18.

[0136] At the in Fig. 11The stationary cleaning device 2 shown illustrates that, for the corresponding configuration of a plurality of suction points or suction areas, a plurality of suction cleaning attachments 1, preferably at least 5, particularly preferably at least 10, and especially at least 20, suction cleaning attachments 1 can be provided. In this case, the suction cleaning attachments 1 are connected to a central vacuum system 37 or a central operating unit of the cleaning device 2, wherein the vacuum system 37 preferably comprises at least the blower unit 30. Preferably, the power supply to the suction cups 3 is provided via the vacuum system 37, which for this purpose has corresponding control and / or regulating devices.

[0137] In Fig. 12 Another embodiment of a quiver 3 is shown in an exploded view. In the Fig. 12In the illustrated embodiment, the quiver 3 has a quiver nozzle 41, a quiver section 42, and a bottom section 43. The quiver nozzle 41 can be attached to the open end face of the quiver section 42 facing the suction cleaning attachment 1. Fig. 13 shows that in the assembled state the quiver nozzle 41 can at least partially extend beyond and / or protrude beyond the quiver section 42 or be aligned with it.

[0138] The socket 41 can have the coding device 33 and the mating contacts 18. The mating contacts 18 can be electrically supplied with power via conductor guides 36. The socket 41 can have openings for guiding the conductor guides 36 through, as shown by the Fig. 12 schematically shown. In Fig. 14The conductor guides 36 are not shown in detail, so that the openings or recesses of the socket 41 for these conductor guides 36 are clearly visible. The conductor guides 36 can be electrically conductive and, most preferably, designed as current conductors.

[0139] The quiver section 42 can in particular be placed on the base section 43 and / or connected to the base section 43 by a positive fit and / or a friction fit. Fig. 13 shows that in the assembled state, the base section 43 protrudes beyond or stands out against the quiver section 42.

[0140] Fig. 12Figure 3 further shows that the quiver section 42 is also open at the end face facing the base section 43. The quiver section 42 can, in particular, be designed as a hollow cylinder and preferably serves to at least partially accommodate the suction cleaning attachment 1 when loaded. The quiver section 42 can be functionally compared to the quiver housing 32, which was previously described in connection with another embodiment of the quiver 3.

[0141] The conduit 36 ​​can extend through the quiver section 42 and be connected to the bottom section 43.

[0142] Furthermore, the Fig. 12The base section 43 has charging electronics 46. The charging electronics 46 can be supplied with electrical energy externally. The conductors 36 are specifically connected to the charging electronics 46. The charging electronics 46 can include a voltage converter for providing the electrical voltage required to charge the battery 12.

[0143] Furthermore, the soil section 43 can have a first, tapered area 44 and a second area 45 projecting from the first area 44, as shown by the Fig. 12 The diagram shows a schematic representation. The second area 45 serves in particular to accommodate the charging electronics 46. The first area 44 can be arranged in the quiver section 42 when the quiver 33 is assembled. The second area 45 preferably serves for mounting on a surface, for example a tube or the like. The charging electronics 46 are electrically contacted via this surface.

[0144] For fastening to a surface, fastening receptacles 48, in particular screw receptacles, can be arranged in the second area 45, as shown. Fig. 12 The fastening receptacles 48 can be designed to accommodate fasteners for a force-fit connection with the surface.

[0145] The Fig. 12 This shows that the base section 43 is open at its end face facing away from the quiver section 42. This end face can be positioned against a surface, which is described in more detail in Fig. 13 The bottom section 43 can have a leveling agent 47 for attachment to this surface. The leveling agent 47 can, in particular, compensate for unevenness of an at least substantially flat surface and thus, in the assembled state of the quiver 3, protect the charging electronics 46 from external influences.

[0146] It is not shown in detail that the compensating agent 47 can be formed by a groove provided in the bottom section 43, in particular in the circumferential edge of the end face facing away from the socket section 42, and by a seal inserted into the groove. Reference symbol list:

[0147] 1 vacuum cleaning attachment 26 Housing 2 Cleaning device 27 Plug and / or snap connection 3 quiver 4 suction channel 28 Flat side 5 Housing 29 Flat side 6 handle 30 blower unit 7 Grip area 31 Hose 8 housing fitting 32 quiver case 9 Suction opening 33 Coding device 10 Lighting equipment 34 Coding port 11 Light bulbs 35 Coding surface 12 accumulator 36 Cable routing 13 Lighting unit 37 central vacuum system 14 circuit board 38 stop 15 Lid 39 edge 16 Lighting opening 40 Muzzle 17 contact 41 quiver stock 18 Mutual contact 42 quiver section 19 Contact spring 43 floor section 20 Opening contact 44 first area of ​​43 21 Exclusion 45 second area of ​​43 22 Storage section 46 Charging electronics 23 hook section 47 Compensation 24 Mounting opening 48 Mounting bracket 25 Fasteners

Claims

1. Suction cleaning attachment (1) of a cleaning device (2) for use in cleaning the interior of motor vehicles by means of a suction air flow, with a housing (5) having an internal suction channel (4) for guiding the suction air flow, wherein the housing (5) has a handle (6) with a gripping area (7) and a housing nozzle (8) with an end-side suction opening (9) of the suction channel (4), and wherein at least one lighting device (10) is provided with at least one illuminant (11) directed at least partially in the direction of the suction opening (9), characterized by that the illuminant (11) is arranged on the outside of the housing (5) and that the lighting device (10) has at least one, in particular rechargeable, accumulator (12) for electrically supplying the illuminant (11).

2. Suction cleaning attachment according to claim 1, characterized in thatthe lighting device (10) has at least one lighting unit (13) on the outside of the housing (5), preferably on the housing socket (8), which is at least partially detachable from the housing (5) or is designed as a separate lighting unit (13) which is separable from the housing (5), preferably from the housing socket (8), in particular wherein the lighting unit (13) comprises the accumulator (12), the lighting means (11) and, particularly preferably, at least one circuit board (14) electrically connected to the accumulator (12) and / or to the lighting means (11).

3. Suction cleaning attachment according to claim 1 or 2, characterized in that the lighting device (10) has a cover (15) which can be detachably connected to the housing (5), preferably the housing socket (8), for covering the accumulator (12) and / or the lighting means (11) and / or the circuit board (14).

4. Suction cleaning attachment according to one of the preceding claims, characterized in thatthe lighting device (10) has a circuit such that and / or is designed such that the lighting means (11) is permanently illuminated during a use state of the vacuum cleaning attachment (1).

5. Suction cleaning attachment according to one of the preceding claims, characterized in that the lighting device (10) has at least two contacts (17) for electrical interaction with mating contacts (18), preferably wherein the contacts (17) are arranged on the outside and in particular on the top side of the lighting device (10) and / or wherein at least one recess (21) is provided on the top side of the cover (15), starting from a contact (17) and extending in the direction of the suction opening (9), preferably over the entire top side of the cover (15) and / or in the direction of the suction opening (9) up to the end of the cover (15).

6. Suction cleaning attachment according to one of the preceding claims, characterized in thatat least one contact (17) is designed as a spring-loaded ball which projects at least partially beyond the top of the lighting device (10) and / or the cover (15), and / or that the accumulator (12) is arranged between the lighting means (11) and the contacts (17) on the circuit board (14).

7. Suction cleaning attachment according to one of the preceding claims, characterized in that the lighting device (10) is arranged on the housing socket (8), in particular on the transition region of the housing socket (8) to the handle (6), and / or is arranged on the housing socket (8) in such a way that the distance of the lighting means (11) to the suction opening (9) corresponds to at least 60%, preferably at least 70%, of the distance of the suction opening (9) to the handle (6) and / or to the handle region (7).

8. Suction cleaning attachment according to one of the preceding claims, characterized in thatthe housing socket (8) has two opposite flat sides (28, 29) starting from the suction opening (9), preferably wherein the flat sides (28, 29) merge into a circular cross-section of the suction channel (4) at a transition region to the handle (6) and / or wherein at least one lighting device (10) is arranged on a flat side (28, 29) and, particularly preferably, adjacent to a transition region to the handle (6).

9. Suction cleaning attachment according to one of the preceding claims, characterized in that at least two lighting devices (10) are provided, preferably wherein the lighting devices (10) are arranged opposite one another on the housing socket (8), in particular on opposite flat sides (28, 29) of the housing socket (8).

10. Suction cleaning attachment according to one of the preceding claims, characterized in thatthe handle (6) is arranged detachably from and / or relatively movable to the housing socket (8) and / or that on the outside of the housing (5) between the suction opening (9) and the handle area (7) there is provided a stop (38) designed as a step or a stop (38) projecting beyond the handle area (7) and / or the lighting device (10) for interacting with an edge (39) of the holder (3).

11. Stationary cleaning device (2) for use in cleaning the interior of motor vehicles, with a suction cleaning attachment (1) according to one of the preceding claims and a holder (3) for inserting and holding the suction cleaning attachment (1) when not in use, wherein at least one counter-contact (18) connected to a power source and corresponding to the contact of the suction cleaning attachment (1) is provided in the holder (3) for making electrical contact, so that the accumulator (12) is charged when the suction cleaning attachment (1) is not in use.

12. Cleaning device according to claim 11, characterized in that the quiver (3) has a coding device (33) such that the suction cleaning attachment (1) can only be inserted into the quiver (3) in such a way that the contact (17) electrically contacts the counter contact (18) and / or that at least one counter contact (18) is designed as a sliding contact.

13. Cleaning device according to claim 11 or 12, characterized in that a circuit is provided for deactivating the lamp (11) when the vacuum cleaning attachment (1) is not in use.

14. Cleaning device according to one of claims 11 to 13, characterized in that the quiver (3) is hollow-cylindrical and closed at the end, preferably wherein the coding device (33) is arranged at the open end of the quiver (3).

15. Cleaning device according to one of claims 11 to 14, characterized in that the quiver (3) has an edge (39) for interacting with the stop (38) of the suction cleaning attachment (1) when not in use, particularly preferably so that a pressure-tight seal is produced between the suction cleaning attachment (1) and the quiver (3).

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