DE102004057870A1 - Mobile drive for operation of pneumatically driven or suction device, designed as container for accommodation of tool - Google Patents

Abstract

The device (10) is designed as a rectangular box (11) with rounded corners, comprising a lid (24) to be closed with swivel fasteners (30, 31) and with an integrated carrying handle (28). A connection to a blowing (33) as well as a connection to a suction device (32) are provided at one of the lateral panels (18). The cable can be wound up on a mushroom shaped projection located at the rear (16). The tool itself and the tubes to be connected can be stored inside the box (11).

Description

The The present invention is based on a mobile drive unit for suction and / or blown air Hand power tools.

There are according to US 2003/0208874 A1 and EP 1 382 285 A2 compact workshop vacuum cleaner known, which serve as a cleaning tool and are provided with various accessories for vacuuming dust, chips and the like. As well as liquids and are also usable in the blowing mode.

Besides that is WO 03/026841 A1 discloses a tool case which has a dust extraction unit contains for picking up chips and dust. The known vacuum cleaner or tool case are limited Suitable as drive unit and transport box for suction or blown air Hand power tools.

Advantages of invention

By the present invention having the features of claim 1 a compact, mobile power unit has been created, both alone as a vacuum cleaner as well as to the drive air streamable Machine tools, in particular hand tool machines, with simultaneous dust extraction is used in the operation of these machine tools and as Transport box for preferably several, different hand-held machine tools is used and with them a system for different processing methods that are compatible with both suction as well as with blown air can be.

Thereby, that the drive unit has a housing that as with a Lid lockable box is designed, whose air flow capacity is adapted to the power requirement of the power tool and at the same time for storing at least one hand-held power tool, especially with accessories serves, as well as the air transmission pipes or tubes, whose diameter is about 40 mm, is a novel hand tool system created, without direct power connection of the power tool works and provides a sufficiently high work and suction power.

Thereby, that it is a case has, as a rectangular box with outwardly curved side surfaces, rounded Corners and edges and flat top and bottom, especially with centered cup-shaped inside Lid is designed with a bar-like handle is a special convenient and handy to transport drive unit for air-powered, Hand tools created.

Thereby, that his case from an open top, there by means of one, in particular to hinge elements Foldable, lid closable Box part, there are particularly stowed handheld power tools well sorted stowable and easily removable.

Thereby, that the lid is formed of two shells, of which the upper Shell made of particularly rigid, impact-resistant material and a middle breakthrough with a bridge-like bridge as well curved down, curved outer edges and Has corners and of which the lower shell of elastic, softer Material consists and overlaps the middle opening of the upper shell and from the bridge-like bridge arched down is a particularly stable, the cargo against impact from the outside but protective At the same time, it creates a container part that cautiously encompasses the interior.

Thereby, that one side surface the box part at least one, in particular mushroom-like, projection wearing, around the one provided for powering the electric motor electric cable can be wound, wherein the at least one projection serves as a footprint, on which the drive unit is turned off and at the same time as an abutment surface for Interception of unwanted shocks when rough Construction site operation on a hinge area of the lid, the goods to be transported are accommodated in a particularly secure manner.

Thereby, that in the box part retaining / clamping elements for accommodating the power tool, in particular for prestressed holding and / or clamping thereof, are provided, in particular in the form of inflatable air cushion elements, is the hand tool machine against uncontrolled intrinsic or relative movement in the Interior of the box part during transport of the drive unit and thus against damage protected transportable.

Thereby, that on one of the two smaller side surfaces of the box part ever one Air intake - and one -Aluftauslaßöffnung with Means for coupling a hose arranged side by side are, is - ever at the option of the to be connected Hand tool machine - one rapid, convenient change of the operating setting of the drive unit from suction to blowing mode possible.

The fact that skeletal, the edges supporting reinforcing parts are provided in the lower box part in the form of frame-like bases, are attached to the soft-elastic, lateral shells are shock-absorbing, from more expensive and created heavier material existing areas of the housing with economical use of materials, with less shock-loaded surfaces of the lighter, cheaper material and at the same time improve shock absorption to the inside.

Thereby, that recesses on the reinforcement sections are provided, where the shells are attachable, the weight of the housing be kept low.

Thereby, that movable, manually operated parts, e.g. Lid closure buttons Sealing cover for Air intake in a contrasting color to the color of the Mobiles drive unit they are particularly quick and easy to find.

Thereby, that the box part has at least one vertical partition, the vacuum cleaner and storage space separates from each other, that can Hand tools and their accessories very clear and stowed away safely.

Thereby, that the aggregate of two juxtaposed, in particular in the box part integrated boxes consists, which, in particular each with a lid, preferably latching, lockable are, the housing structure is stiff and stowed items safe and protected arranged.

Thereby, that the two boxes of the vacuum cleaner designed as a motor box and dust box with Staubkontrollöffnung are, these and their contents are independent of impact and impact stress of the housing from the outside especially protected against twisting ..

Thereby, that on the inside of the lid detent clamping means for a Suction hose are arranged, the latching, parallel to the lid surface spiral laid / arranged, this is particularly space-saving and lightweight stowable handled.

Thereby, that a bypass valve is arranged on the dust cover is the Vacuum cleaning unit against overload protected.

Thereby, that sealing lips disposed between the lid and the box part are the entry of external air or dust discharge safely excluded.

Thereby, that black reinforcing parts the blue green / To embrace the box part / cover part are the softer and harder areas of the housing intuitively distinguishable from each other.

Thereby, in that inside the drive unit, in particular in the box part / cover part, Lighting means are arranged, in particular with LED and / or in the form of graphic signs and or symbols, preferably one shining brand lettering, the content is in the storage compartment of the Box part particularly well controlled.

Thereby, that the outside surfaces of Operating elements, in particular for opening and closing a Lids or to press a switch button for switching on or off the drive unit, within the outer contour the drive unit is arranged, these are or in it stowed contents against accidental opening or damage when Transport protected.

Thereby, that the switch button to turn on or off the drive unit via a breakthrough in the lid both closed and open Cover for Foot or Manual operation from the outside accessible is, the switching on and off of the drive unit is special comfortable, easy and safe possible.

Thereby, that a hose adapter is arranged latchable at the air outlet, the against a discharge grille, in particular with dust filter festhaltbar interchangeable is, the change between blowing and suction mode - or vice versa - particularly fast respectively.

Thereby, that a replaceable adapter for the suction hose of the Drive unit against a primarily for the purpose of vacuuming suitable suction adapter, in particular in connection with that for power tools provided dust extraction is interchangeable, is the drive unit at the same time comfortable and with minimal changeover time as a vacuum cleaner and as a suction unit for Electric hand tools usable. In this case, the air flow to drive the hand tool machines and for simultaneous suction or blowing of dust, chips etc. are used.

Thereby, that an intermediate coupling piece for add an additional one Saugschlauchstücks is arranged on the suction hose of the drive unit, so that The suction hose can be extended as needed.

Of the User has the opportunity the drive unit for different hand-held machine tools to be used, which are powered by suction and / or compressed air and who do not need their own direct power supply.

drawing

The invention is based on a Embodiment explained in more detail with the accompanying drawings.

It demonstrate

1 a spatial representation of the drive unit obliquely from the front

2 the representation of the drive unit obliquely from behind

3 the drive unit according to 1 diagonally from above with lid open

4 the drive unit according to 1 diagonally from the left

5 the drive unit according to 3 with spirally inserted hose

6 an intake air driven hand grinder for operation with the drive unit

7 an exploded view of the drive unit

8a a hose coupling for connecting the suction hose to the drive unit or to an air-powered hand grinder

8b a cover plate with connecting piece for connecting the hose to the exhaust opening

8c a coupling piece for connecting the Augschlauchs to an electric hand tool with connecting pieces for a 19-millimeter hose

8d a coupling piece for connecting the Augschlauchs to an electric hand tool with connecting pieces for a 35-millimeter hose

8e a hose intermediate coupling for attaching an extension piece to the suction hose and

8f a drilling aid for a hand drill for extracting drilling dust at the point of origin.

description of the embodiment

In the 1 shown spatial representation of a box-like drive unit 10 obliquely from the front leaves its longitudinal axis 12 recognize that parallel to the front 14 or rear side 16 runs. The lower part of the drive unit 10 is an open-top, six-sided, cuboid box 13 who at his bottom 15 by means of a soil 17 closed is. The box 13 also has a left and right side 18 . 20 , one as well as one top 25 passing through a lid 24 is embodied.

The box 13 is by a chassis-like skeleton case 22 made of impact-resistant, high-quality material, which has a left and a right side shell 19 . 21 made of comparatively elastic, lightweight material and the hinged lid 24 on the hinge side 25 worn the top 26 of the drive unit 10 forms.

The lid 24 consists of a lid frame 26 that, like the skeletal case 22 Made of impact-resistant, high-quality material and on the one - seen from above - concave cover shell 27 is attached. The lid frame 26 forms the lid shell 27 cross-over, central handle bar 28 Comfortable hand-gripping and good balanced carrying of the power unit 10 guaranteed.

On the front side 14 of the box 13 are up, adjacent to the lid 24 two snap fasteners 30 . 31 arranged, with which the cover 24 at the box 13 can be securely closed against unintentional opening.

On the left side 18 step through the left side shell 19 parallel to each other, a suction opening 32 and a blowout port 33 ,

On the top of the box 13 is in the corner between left side 18 and backside 16 a switch button 34 arranged by means of spring system 35 is held elastically biased in its initial position, from which it can be pressed from above into the on or off position. The switch button 34 Pass through a suitable opening 29 in the lid 34 so that its outer surface is flush with the outer surface of the lid 24 runs and even with the lid closed 24 from the outside by foot or by hand is operable. The switch button 34 sits on a shell 36 that with a switch 37 is operatively connected.

On the back 16 is a cable mushroom 38 for holding a power cord to be wound around it 42 arranged, by an unspecified, waterproof outlet opening of the rear side 16 exit and inside the box 13 via a cable clamp 39 with a motor 104 is electrically coupled. Inside the box 13 is a wiring harness 40 arranged the switch 37 with the engine 104 and other unrelated electrical elements.

At the edge of the cable mushroom 38 is a cable holder 41 clamped, with which the free end of the power cord 42 it is detachably clamped.

Between a motor box lid 61 and a motor box 62 for receiving the engine 104 to drive a suction fan unspecified is a motor box seal 42 arranged.

The suction opening 32 is by means of a removable suction cover 48 Lockable, which prevents during transport of the drive unit 10 Dust and chips from his dust box 55 can fall. The exhaust opening 33 is through an outlet filter 44 covered and this by means of a fixable there outlet grille 46 held to it.

The dust box 55 is through a dust cover 56 by means of dust seal 57 essentially airtight sealable, the dust cover 56 by means of a latch-like projection 49 is easy to open or close. In the dust cover 56 is a bypass 50 arranged at the crowded dust box 55 a valve 53 opens, over the air, bypassing the suction opening 32 entry. The bypass 50 consists of a fixing cover 51 that's the valve 53 and a seal 52 carries, with the valve 53 by a spring 54 is held biased and opens only from a minimum negative pressure and admit additional air.

The engine box 62 is with the dust box 55 connected by a common opening through a suction filter 54 is covered. The intake filter 53 Prevents sucked air chips and dust in the engine 105 reach.

The engine box lid 61 is pivotable about an unillustrated hinge for opening and closing. He is on the opposite side of the hinge with a finger 60 in which the fingers of a hand to open the engine compartment cover 61 are handy inserted.

The snap closures 30 . 31 consist of two toggle levers 64 . 65 , each by means of a tension button 66 and one locking lever each 67 around one axis each 68 are pivotable. This is the lid 24 - swiveling around a hinge side 26 - Safe against accidental opening against the box 13 closable.

2 shows the drive unit 10 diagonally from behind with a view of the rear 16 , wherein the cable mushroom 38 with the cable holder 41 are clearly visible. It can also be seen that the area of the cable fungus 38 is so large that it can serve as a footprint for putting the drive unit. Next is the shell construction of the housing 11 of the drive unit 10 recognizable and the arrangement of the suction and exhaust opening 32 . 33 ,

3 shows the drive unit 10 according to 1 diagonally from above with lid open 24 with a view inside. In this case, the proposed spiral arrangement of the inserted suction hose 78 and the configuration of the holding or clamping elements 45 for its inclusion in the lid 24 visible, noticeable. In addition, the top view points to the box 13 , Button 34 , the opening 29 in the lid 24 to the passage of the button 34 , the handle 49 for swiveling / opening the dust cover 56 around his hinge 560 , the seated bypass 50 , the fingering 60 for opening the engine compartment cover 61 , a storage compartment 63 to accommodate a triangle grinder 70 or accessories 98 , It can be seen that about ½ of the volume of the box 13 for housing the triangle grinder and the entire volume of the lid 24 for the accommodation of the suction hose 78 is available.

4 shows the drive unit 10 diagonally from above with a view to the left side 18 with the suction opening 32 and the exhaust port 33 and on the front 14 or the top 25 , wherein the details explained above are clear, without these being repeated.

5 shows the drive unit 10 with inside in the opened lid 24 spirally inserted suction hose 78 similar 3 , with the accessories 98 differ..

6 shows one as a turbine triangle grinder 70 configured, suction-air-driven hand grinder for operation with the drive unit 10 , The hand grinder has a iron-iron-shaped housing 71 with a hand-gripping upper area, which serves as a guide handle 72 serves. At the back sits the case 71 in a tubular housing area 73 away, which serves as a convenient grip from the handle main handle.

This opens in a coupling neck 80 , in the hose coupler 81 of the suction hose 78 latchable is plugged for the purpose of connecting the triangle grinder 70 to a drive unit 10 to drive with suction air. At the top of the guide handle is a button 74 arranged, with which the suction air flow can be reduced. The suction air is a turbine, not shown, inside the housing 71 powered by a sanding plate 76 put into an orbital motion.

The hose coupling piece 81 is about locking cams 82 positively locking with the coupling socket 80 connectable and occurs there in unspecified detent openings in the wall of the coupling pipe 80 ,

7 shows an exploded view of the drive unit 10 - disassembled into its individual parts. The details and features explained on the previous figures are particularly clearly recognizable.

8a shows a hose coupling for connecting the suction hose to the drive unit 10 or to a triangle grinder 70 or the like, air-powered hand tool ..

8b shows a blowout adapter 83 that made a cover plate 100 that exists with a connecting piece 101 is provided for connecting the suction hose 78 to the exhaust opening 33 serves, which is against the arranged in the suction mode outlet grille 46 with outlet filter 44 is interchangeable.

For this purpose, the cover plate at its lateral ends with locking tongues 84 provided on the outside on the left side 18 in the area of the exhaust opening 33 be clipped.

8c shows a hose coupling 85 for connecting the suction hose 78 to a slim (19mm) suction hose connector / exhaust port of an electric power tool with low to medium dust.

8d shows another coupling piece 88 for connecting the suction hose 78 to a slightly less slim (35mm) suction hose connection of an electric power tool with moderate to heavy dust.

8e shows a hose intermediate coupling 91 for coupling a suction hose extension piece whose diameter with that of the suction hose 78 matches.

8f shows a drilling aid 93 for the passage of a drill for sucking the drilling dust arising during drilling.

When connected to the suction opening 32 can the drive unit 10 For example, operate the following devices with the suction air stream and at the same time vacuum the resulting dust / dirt, which is separated by any filter system: Oscillating / multi-sander, eccentric sander, plasterboard cutter, drilling aid.

When connected to the exhaust opening 33 can the drive unit 10 operate the following devices with the "pressure" air flow: paint spray gun, exhaust nozzle / crevice tool, hot air gun, attachment valve for inflating hose carriers and air matzos, etc.

In the box 13 of the drive unit 10 there is a storage compartment 63 for the triangle grinder 70 and suction function accessories z. B. crevice nozzle, drilling aid 93 , Adapter for power tools 85 . 88 , Adapter for vacuum cleaner accessories, sand paper (Z) or the like

The power cord 42 will be at the back 16 of the drive unit 10 around the cable filter 38 wrapped and with a clip-type cable holder 41 on the cable mushroom 38 attached. The cable mushroom 38 can also be used as a footprint to the drive unit 10 to store upright.

The blow-out adapter 83 to change with the exhaust grille 44 Serves improved air flow when sucking and better pressure build-up when blowing.

The suction hose 78 has a quick release connector 80 with which it can be connected to vacuum cleaners, turbine triangular grinders or other associated devices.

The switch button 34 on the upper edge / corner is convenient for switching on / off with the foot, with on / off switching is possible with the lid open and closed.

The box 13 is through side shells 19 . 21 , stiffened that against the skeletal box 22 be braced and / or bolted. By only partially using a stiffer / higher quality material can the strength of the skeletal box 22 be increased without the more expensive material for the entire housing 11 to use.

Both the suction opening 32 as well as the exhaust opening 33 with finger recess are in one side shell 19 integrated so that there is a great deal of room for maneuver with easier demoulding of the injection molded part.

The lid shell 23 is also central as a concave insert in the handle area of the handle bar 28 in the flat lid 24 arranged. As a result, this area is better demolded from the injection molding tool, ensures the stackability of the drive unit and secured in use the filing for small parts or tools with the lid closed and used as a design element.

The bypass valve 50 in the dust cover 56 or alternatively in the filter housing, which secures the engine 104 when the dust bag is not overloaded. The engine is cooled with the suction air. If the dust bag is full due to the sanding material or its pores are added, the remaining cooling air could be bypassed 50 the engine 104 not cool enough anymore. This would then overheat. The sub pressure / bypass valve 50 opens as soon as the negative pressure in the filter chamber, between dust filter and motor fan, under a certain, via a spring 54 adjustable value decreases. By opening the bypass valve 50 air is sucked in bypassing the filter in order to 7 ] to cool sufficiently.

When transporting the drive unit 10 will the escape of dust / protection from the suction port 32 by placing the suction cover 48 prevented. The opening is made by a recessed grip in the side panel [ 24 ], as well as losing by attaching with a pin on the side panel [ 24 ] prevented.

Claims (22)

Mobile drive unit ( 10 ) for operating a handheld power tool ( 70 ) by means of suction and / or blowing air, characterized in that it is a housing ( 11 ), that as a lid ( 24 ) lockable box ( 13 ) is configured and that its air flow to the power requirement of the power tool ( 70 ) and for storing at least one such or similar hand-held power tool ( 70 ), in particular with accessories, as well as the air transmission tubes or hoses is used. Mobile drive unit ( 10 ) according to claim 1, characterized in that its housing ( 11 ) As a rectangular box with outwardly curved edges, rounded corners and a flat, cup-like inwardly domed lid ( 24 ) as well as flat bottom and top ( 15 . 25 ) is configured. Mobile drive unit ( 10 ) according to claim 1 or 2, characterized in that its housing ( 11 ) from an open-topped box part ( 13 ), the above by means of one, in particular a hinge area ( 26 ), hinged lids ( 24 ) is closable. Mobile drive unit ( 10 ) according to claim 3, characterized in that the lid ( 24 ) of two parts ( 23 . 27 ) is formed, of which a flat lid outer shell ( 23 ) a key breakthrough ( 280 ), which has a bridge-like bridge ( 28 ), and the domed edges and corners have an inner shell ( 27 ) the break through ( 280 ) from below and to the bridge-like bridge ( 28 ) has a distance down. Mobile drive unit ( 10 ) according to one of the preceding claims, characterized in that a side surface ( 16 ) of the box ( 13 ) at least one, in particular mushroom-like, projection ( 38 ) carries a power cord ( 42 ) windable and thus halterbar, wherein the projection ( 38 ) a footprint on which the drive unit ( 10 ) is abstellbar and at the same time forms a collision surface for receiving unwanted shocks, eg in rough construction site operation, on a hinge area ( 26 ) of the lid ( 24 ). Mobile drive unit ( 10 ) according to one of the preceding claims, characterized in that in the box ( 13 ) Elements for holding the portable power tool ( 70 ) are arranged, in particular elastic elements for holding / clamping, preferably in the form of inflatable air cushion. Mobile drive unit ( 10 ) according to one of the preceding claims, characterized in that on one of the two shorter side surfaces ( 18 . 20 ) of the box ( 13 ) Suction and exhaust opening ( 32 . 33 ) with means for coupling a suction hose ( 78 ), in particular next to one another, are arranged, Mobile drive unit ( 10 ) according to one of the preceding claims, characterized in that the box ( 13 ) from a box skeleton ( 22 ) which forms rib-like reinforcing parts. Mobile drive unit ( 10 ) according to one of the preceding claims, characterized in that recesses ( 69 ) at the reinforcing parts ( 45 ) are provided by means of attachable elastic shells ( 19 . 21 ) are closed from softer, less expensive material Mobile drive unit ( 10 ) according to one of the preceding claims, characterized in that manually operable parts, such as lid closure buttons, sealing lid, a contrasting color to the housing ( 11 ) to have. Mobile drive unit ( 10 ) according to one of the preceding claims, characterized in that the box ( 13 ) has at least one vertical partition, which in the housing ( 11 ) a storage compartment ( 63 ) for the hand tool ( 70 ). Mobile drive unit ( 10 ) according to one of the preceding claims, characterized in that the two arranged side by side, in particular in the box ( 13 ) integrated boxes ( 55 . 62 ) in particular each with a lid ( 48 . 61 ), preferably überrastend, are closable the engine ( 105 ) and serve as a dust box. Mobile drive unit ( 10 ) after one of the preceding claims, characterized in that the two boxes have a motor box ( 62 ) as well as a dust box ( 55 ) with dust control agents. Mobile drive unit ( 10 ) according to one of the preceding claims, characterized in that on the inside of the lid ( 24 ) Holding means ( 94 ) for receiving the suction hose ( 78 ), which latching, parallel to the lid ( 24 ) can be arranged spirally. Mobile drive unit ( 10 ) according to one of the preceding claims, characterized in that a bypass valve ( 50 ) on the dust cover ( 56 ) is arranged. Mobile drive unit ( 10 ) according to one of the preceding claims, characterized in that between the covers ( 24 . 56 . 61 ) and the box ( 13 . 55 . 62 ) Sealing means are arranged Mobile drive unit ( 10 ) according to one of the preceding claims, characterized in that inside the drive unit ( 10 ), especially in the storage compartment ( 63 ) or inside the lid ( 24 ) Lighting means are arranged, in particular with LED and / or in the form of a luminous brand lettering. Mobile drive unit ( 10 ) according to claim 1, characterized in that manually operable controls ( 30 . 31 . 34 ), in particular for opening and closing a lid or for actuating a switch key for switching on or off the drive unit, within the outer contour of the housing ( 11 ) are arranged. Mobile drive unit ( 10 ) according to one of claims 1 or 2, characterized in that the switch button ( 34 ) for switching on or off the drive unit via an opening ( 29 ) of the lid ( 24 ) is accessible from the outside for foot or hand operation. Mobile drive unit ( 10 ) according to one of the preceding claims, characterized in that a blow-out adapter ( 83 ) at the exhaust opening ( 33 ) is arranged fixable and against a discharge grille ( 46 ), in particular with dust filter ( 44 ), is interchangeable. Mobile drive unit ( 10 ) according to one of the preceding claims, characterized in that an adapter for the suction hose ( 78 ) is provided, with which this handheld power tools, such as electric hand swing grinder, with suction nozzle of a different diameter than the suction hose ( 78 ) is detachable. Mobile drive unit ( 10 ) according to one of the preceding claims, characterized in that a hose intermediate coupling ( 91 ) is provided for coupling the suction hose ( 78 ) with an extension suction hose piece.