DE1453097A1 - Floor care and cleaning machine - Google Patents

Description

The present invention relates to an electrically operated Floor care and cleaning machine with an articulated on attacking the machine housing, carrying switch-on elements Drawbar and one of one or more revolving on the Floor-supported working disks existing tool.

Known machines of this type have various disadvantages « In most cases, very large network safeguards are required in order to absorb the high starting currents of the machine that starts up immediately under load. In many cases it is machine not operational due to a lack of such safeguards »

Ulan has therefore already tried to find a means that enables the high starting currents to be reduced. For example, it was suggested that the tool should be raised and lowered " However, this design is very cumbersome and requires a relatively large Üauhöhe *

However, it is an important one, especially with floor care machines Task to build the machine as flat tuie possible to get this Can also be used under radiators, cupboards or the like. In most cases, this type of application fails because "the motor itself is too high and on the other hand is attached to the front end of the machine housing"

Another suggestion for achieving an iuaichan approach consists in mounting the tool swinging in springs acting on the circumference of the tool. This version, which is also

BATHROOM OB ¹ G'w 4L

809901 / 03Ö0

- 2 -

if the case is quite complicated, the result is a uiuichee start-up, but does not prevent the high net bulging during start-up *

The present invention is based on the clear recognition of these relationships and the task of providing a detailed explanation to develop such a machine that avoids the disadvantages mentioned, is also very low, easy to manufacture and operate and is reliable "

The solution to the problem is that the drive motor, which is known per se, preferably as a single-phase short-circuit rotor Jtotor, drives the Wdrkzuug via a reduction device which the üJurkzeug only after a certain starting speed of the drive motor has been exceeded rotated with full) torque

An advantageous embodiment of such a machine is that the drive motor consists of an annular stator arranged centrally in the RIaschinenguhäuee and a stator therein concentrically arranged, also ring-shaped rotor without Abtritfbsuielle and that the reduction device from Rotor is enclosed. This new rotor design makes it possible "An extremely low overall height" of the machine "Above in addition, all moving machine parts are from the protective fling of the motor enclosed ..

An excellent further development of the elfindungsgumässen machine is that a mechanical reduction gear is vorgasehen that the drive string is connected to the output part of a centrifugal coupling which is designed so that it is the full Motor torque only after crossing the saddle Im ffld-n-5 diagram of the drive motor transfers *

It is advantageous if the starting clutch is designed as a centrifugal clutch enclosed by the itotor of the drive motor, the sockets of which are rigidly connected to the rotor Anchor plate are pivotably mounted and their output part or «

8 0 9901/0300 _ *.

Coupling housing a drive unit for the reduction gear wearing.

Another measure to save space is "that the Reduction gear is designed as a einsfcu Planutenradgatriöbö, whose web carries the drive shaft for the tool. Uae planetary gear transmission has the further advantage over spur gear reductions that there are always so many teeth, uiie planets · » wheels are present are engaged. A smaller tooth module is possible, which ensures good power transmission and reduction.

Another embodiment of the invention consists in that oil-tight enclosed by the stator and filaschino housing is designed to hold an oil filling «This achieves good lubrication i '*) d cooling«

According to another embodiment of the machine according to the invention it is provided that the reduction gear and starting clutch consist of a hydraulic gear of the Föttinger type, which is driven directly by the drive motor is «A hydraulic gear unit combines properties a centrifugal coupling and a reduction gear. By ' suitable, simple means it is even possible to adjust the speed.; of the drive shaft, which is advantageous in certain cases · ' issue is. furthermore, the hydraulic transmission requires a very great deal of effort low tiau height and requires practically no maintenance. '\

In known machines there is the disadvantage that between There is too little or too much play between the UerkZHugträgor and the tool. In the former case, the tool can only be removed from the tool carrier with great difficulty. In the latter The trap creates annoying noises and damage to the ntaechine.

809901/0300

Despite these shortcomings, no attempt has yet been made to help to create. Instead of the previous rigid attachment dee Tool ata tool carrier is therefore proposed on daO the output shaft of the reduction gear sits a rotating rianschartiger tool carrier, which on sectors of its Underside of bracket-like feathers to hold the ankle known carrying straps attached to the tool housing "

Another shortcoming of the known machine is that it is it can happen that the machine is started unintentionally For example, this can be done by wrapping a feed cable around the handles and the switch-on lever and the machine switches on «This can cause considerable damage and accidents. Turning on the machine shows «Seispialeweise this can be made possible by that the safety device consists of at least one on the handle the drawbar-mounted switch-on element for actuating a a toggle lever acting on a wiki switch that separates the power supply from the drive motor and from an unlocking device * tion of the toggle linkage or micro switch further switching element exists.

Another shortcoming of the well-known iflasehine is in the fact seen that by means of pawls in their Schuienklage a * adjustable drawbar too much play in relation to the machine housing owns «This is based on the necessarily large t-module of Ratchet assembly «

In order to avoid this disadvantage, therefore, vegetables of the invention suggested that the pivot axis of the fllaechinsngehau * sas pivoted lower end of the drawbar In itself known way by means of a hand-operated locking pawl a toothed locking axis that is rigidly attached to the fflaschinengehäuee can be fixed at various angles to the floor and that to avoid tooth play between the locking bar

809901/0300 -S--

and a friction lock or a friction brake is arranged on the drawbar

There is another advantageous embodiment of the invention in »that the pivot axis is stored in the lower ueichaelgjhäuse and their ends in slotted bearing blocks of the rrtaschinengestslls are insertable, classy on the front of the locking axle A pin also protruding into the slot of the assigned bearing block is attached as a rotation lock. This is how it is possible to detach the drawbar from the machine housing in a few simple steps. This has basondure advantages, e.g. for shipping the fascine. The complete drawbar can also be used against another exchanged if a repair is necessary or a another arm length is required

With machines of the type in question known here, it is still customary today to apply the wax liquid to the floor by hand. The uiacha application is naturally extremely uneven and leads to a high consumption of uiacha “On the one hand, this is expensive, on the other hand, ec does not benefit the floor either.

According to the invention, it is therefore proposed that a spray device for liquid web wax should be installed on the machine housing is releasably attached.

Further details emerge from the following description of an exemplary embodiment with reference to the drawing. In this point

Fig. 1 is a side view of the floor care and cleaning machine according to the invention, Fig. 2 is a plan view of this.

3 shows an enlarged longitudinal section through the machine housing,

Fig. 4 is a tuiltueisen longitudinal section through a fluid transmission » Fig. S is a plan view of the ttfurkzäugträgers,

809901/0300.

Figure 6 ₀ sine side view of the tool carrier,

FIG _o 7 a longitudinal section through a safety device against unintentional switching of the fascine "

8 shows a longitudinal section through another safety device,

9 shows a longitudinal section through the lower drawbar housing of the machine,

10 is a side view of the lower axle housing a,

11 shows a longitudinal section through an axis spraying device and

Fig. 12 a longitudinal section through a modified form of the axle spraying device »

According to FIGS. 1 and 2, the new floor care and cleaning machine has a machine housing 2 which carries the tool 1 and on which the drive motor 3 is initially arranged has a handlebar-like handle 5 at its upper end

In Figure 3, the machine housing 2 of the machine is in section shown in detail. The drawing shows the hi-fi machine housing shortened in the radial direction.

According to the drawing, the machine housing 2 consists of a circular shawls that cover the Ulerkzaug 1, not shown Has drive shaft 8 of the U / arkzeugus 1.

On the housing bottom 6 sits the drive motor 3 of the machine, it is designed as a shaftless ring-shaped single-phase short-circuit rotor motor and consists of a ring-shaped stator 9, in which a likewise ring-shaped rotor 11 is rotatably guided in the machine housing and the twin stator

η ι / ύ 3 α ο

- 7 - and rotor arranged winding IU ₀

The upper edge of the rotor 11 is firmly connected to an anchor plate 12 that closes the rotor like a cover.

In the from the Ankurplatte 12, the Hotor 11 and the case back 6 enclosed cavity iet a reduction device 13 housed

In the embodiment shown in Figure 2, there is Reduction device from a starting clutch 14 and the actual reduction gear 15, since * in the present case is designed as a planetary gear

In detail, the power transmission members are arranged as follows!

On the anchor plate 12 pivotable levers 16 are articulated distributed over a pitch circle, on whose Eηdun coupling jaws 17 are mounted, which by means of a suitable fteibbslages with the Innenuandung of the clutch housing 18 can come into contact. This clutch housing 18 forms the Abtriobstail of the clutch The two opposite clutch shoes are tensioned outwards by a suitable compression spring. The clutch is like this designed that they after the start of the drive motor 3, i.e. at a ffiotord speed, which is behind the well-known saddle in the ffid / n characteristic of a cin-phase short-circuit motor is only the full torque is transferred to the downstream gearbox · When this speed is reached, this affects the clutch shoes 17 acting centrifugal force that these are pressed outwards against the clutch housing 18 and a force-fit connection make the drive motor 3 with the reduction gear

As can be seen from the drawing, the opposite has Rotor rotatably mounted clutch housing an output shaft 19, which is at the same time the drive shaft of the sun gear 20 of the planetary gear · The sun gear meshes with preferably three

809901/0300

■ - - V β - ν

Planetary gears, which are driven by an internally toothed ring gear 21 » are surrounded and on a circumferential web 22 with their axis » pin 23 are mounted, the web 22 has a downward directed Uiellestück 8 that at the same time the drive shaft for the tool 1 isto

The drive motor 3 is at its upper end through a housing cover 24 completely closed «The one from the drive motor and the DfImachine housing enclosed barely 25 is sealed oil-tight and filled with Ül «üieaes takes care of the tasks of the Filmachine lubrication and, on the other hand, the necessary cooling the - machine -

A flange-like tool carrier 26 is firmly wedged on the lower end of the drive shaft 8 of the tool. On its underside, as can be seen in particular from FIGS Springs, 2 _O B _O leaf * springs 27 to "

As shown in FIG. 4, the workpiece 1 has an annular support plate 28, which inwardly protruding sector-like carrying lugs 29 open fflit these carrying lugs 29, the tool 1 is attached to the Underside of the Uierkzeugträgers applied and this opposite rotated a little so that the carrying straps are between the underside of the "Jerkzuugträgers and diu club-like feathers get", The compliant. Execution of these retaining elements avoids the tolurance difficulties that occur frequently with other machines

Figure 6 shows another embodiment of a step-up gearbox According to the invention, instead of the centrifugal coupling and the Reduction gear also a hydraulic gear 30 according to Kind of Föttinger-Gätrieibss be provided on the one hand the Task of the centrifugal coupling and on the other hand ainβ if necessary even adjustable Qrehzabi sub-substitution takes over. This hydraulic transmission is extremely space-saving and affordable *,

«. Q ο

809 9 0.1 / 0300

It can, in the case of a drive motor with an annular rotor inside of the hotor or shown in Figure 6, too below a normal, as flat as possible! 3 * be arranged on Gahäussboden 6 »

Figure 7 shows the upper end of the drawbar 4. The buiden drawbar pipes 4 end in a rigid box 31, on which, according to Art a handlebar on both sides pipe socket S protrudes, diu as Serve handle.

A a doppslarmigen Cancels the manner is at the inner Endsn this pipe socket respectively; ls formed Einachaltslement 32 mounted whose sinter Kebslarm 'protrudes through a slot in the handle 5 The andBrcn _s in the housing 31 ragendsn lever arms 33 engage a Knithebaloastänga 34th This consists in detail of a " hinged on van lever arms 33;" lUinkolhsbel 35, at its head , -6 ain further lever arm 3? ctarr attached "Further, on nevertheless vertex 36, a" down the lever 38 hanging angelsnlft, the lower end with a dom end is mounted on the housing 31 by means of a push-button 39 it be tätigbaren push rod 40 articulated warbunüßn,

A micro switch 41 is hung on the lift alarm 37 and a tii einur.Fedar 42 exhaust gas vent. Aujrserdem is in 1 / erläng-rung of the lever arm 37 is a Uetät igungszunge 43 attached _f .ie on the circuit pin 44 of the Hlikrt einzuiuirkan switch 41 vjcmag "Λη dsm lever 38 facing Se; .Le of iilikroschalters is 3ine angled guide tongue 45 bafcstigfe on dtjr a guide pin supported 46 which is rigidly attached to the lever iS _o -ernannten parts form zusainnen e: ne Power · "and backup" means ·

l'.iikroschaitör then disconnects the operator from the power grid To see drive motor with alwktrischem current, ic-t "» a / first necessary to press the 3S> push button. This one advertises an easy one Deflection of the Hebal: 3Ij νο · η Wikroschaltor meg «, Daa; ii glides Guide bolt 46 over the Xrtick of the guide tongue ^ ülird now that

BATH 80990: 1 / 03vO- ■ "■■ '■

one of the two switch-on lights 32 (or böida) in the direction of auf.den handle 5 pulled, the lever arm 33 can now to move the lever 38 down via the Uiirikelhsbel 35 ,. Included The micro switch is tilted so that its switch-on pin: Gegan the force of the tongue 43 is depressed.

Any unintentional switching on of the machine can therefore be avoided avoided overturning.,

Figure β shows another version of a mechanical safety device * In its essential structure, it shows dia the same elements as the device according to Figure 7. The the same elements are therefore given the same reference "jn"

As the drawing shows, the micro switch has a continuous switch pin 44, which, in contrast to your switch pin, is not spring-loaded. is _c At the lower end of this switch pin engages a UJinkelhabel 47, which replaces the lever 38, the guide pin 46 and the guide tongue 45 of the first-mentioned device and is movable from the inner end of the push button 39

The switch-on process is reversed here, as with the ersfeba « written facility;

First of all, the switch-on elements on the handle are tightened. "At the same time, the apex 36 lowers a little and blurs the Kiikro.sch.alt he 4i. By pressing the push button es 7-39 the angle lever 47 is shifted _for the switching pin 44 * ^ sin moves and thus the contacts in the iJÜkroschalter with each other Ln :. Touch ■ brings. '.-. "■ .--. ■: ■ .- ■ ■" ■: - ■ · ■ ■■■ - ■ - ■ - - -; · .- »■ -

This design is extremely simple and space-saving Other security systems. Zpö · electric are conceivable and known per se »'

BATH

Se ft « n.fi *. ' ff \ Ht * -ti '.: ";, -;"^:; -

According to FIG. 9, the drawbar 4 is located at the lower end a shaft housing 48 in which the electrical controls z.ü «capacitors usia. are housed »at its lower At the end, a pivot axis 50 is rotatably mounted in relation to the handlebar housing 48 · sits on this drawbar axis, rigidly with it This is connected to a toothed locking axle S1, into which a locking pawl 52 guided in the gear housing 48 engages The pawl is connected to a pull lever (not shown) via a Bowden cable 53 »

A friction lock 54 is used to compensate for tooth clearance tolerances intended. This consists of an axially against a shoulder the pivot axis 50 supported plate spring 56, which presses its friction disk 57 against the end face of a bearing SB of the drawbar housing. The whole adjustment system is in this way frictionally clamped

Ulie Figure 9 and in particular also Figure 10 show more closely protrudes the pivot axis 50 on both sides via the dike housing 48 out. These protruding ends 59 rest in bearings 60 of bearing blocks 61 which are rigidly connected to the machine frame 2 are. (Fig. 1)

As shown in FIG. 10, the bearing blocks 61 have a slot for inserting the axle ends 59, which are firmly screwed to the bearing blocks 61 in the slot 62 engaging pin 63 provided by the Front face of the axis and possibly a bearing bush on other end of the axle protrudes. This arrangement enables the drawbar to be easily connected to the machine frame.

According to Figure 9, the lower drawbar housing carries a socket 64, which can be connected to the utility by means of a switch 65 arranged on the upper drawbar housing 31, for example. This plug * socket is suitable for connecting various auxiliary devices, ζ · Β · Spraying device or a lye »tank 78«,

'BAD Gf ^ aiRJiL

809901/0300

In order to enable the floor to grow evenly with liquid wax , a spray device 66 is attached to the machine housing 2

This consists of a container 67 for the liquid üjachsrnasse and uie is at its bottom one with the inside of the tank connected pump 6B to »This is with a spray nozzle 69 connected »·

FIG. 11 'the pump consists of a piston? _P whose piston rod 71 is designed as a vibrating armature and is surrounded by an electrical winding 72.' In his Hubbeiuegung the piston are worn jeuieils einu container 67 in the injection passage 73 leading Auslauföffnbng 74 free and drives the leaked u »achsmenge to Sprühdüsa _e

FIG. 12 shows a different type of penpipe. A piston 70, which can optionally be actuated by hand, is provided here. From the The cylinder bottom of this piston is guided by an air tube 7S. to the spray nozzle, which is connected to the interior of the container by means of a supply line 76 connected is Ȇu; ~ ch thin piston pressure is known per se Uieise achieved an injection hydraulic effect

There are also versions uieitere a spray conceivable way it is possible to put the Heiälter under air pressure and the roof leak liquid durcl- appropriate, c _e B _o valve-controlled opening to lessen · -

BAD OFü @! NAL

8 0990 1/0300

Claims (1)

-13 claims Electrically powered foot bath care «· and« cleaning machine with an articulated attack on the Üflaschinengehsäuse, Switch-on element-bearing tiller and one from one or several rotating »on the floor supported working disks existing tool, characterized in that the in per se known doise, preferably as a Einphesian short » closed-circuit type motor (3.3) drives the tool (1) via a replacement device (13), which the tool (1) only after exceeding a certain Starting wire speed of the drive motor (3.3) with full torque in circulation., Machine according to claim 1, characterized in that the Drive motor (3) from a centric in the machine housing (2) arranged annular stator (9) and a concentrically arranged therein, likewise annular rotor (II) without There is an output urella, and that the reduction device (13) is enclosed by the rotor (11) » Machine according to claim 1 or 2, characterized in that a mechanical reduction gear is provided that on the drive side with the output part (18) of a centrifugal coupling connected, which is designed so that it fflotorrehmofiiünt the full fflotorrehmofiiünt only after crossing the saddle of the curve in the ffid-n diagram of the drive motor (3,3 ·) transmits « Machine according to claim 3, characterized in that the centrifugal coupling is embodied as a of the drive motor (3) enclosed by the rotor (11) centrifugal clutch _s whose jaws (17) are pivotally mounted on a rigidly connected to the rotor (11) the armature plate (12) and their The output part or clutch housing (18) carries a drive shaft (19) for the reduction gear. BAD OWSINAL -14- 809301/0300 5 »Machine according to one of the usv claims 1 to 4, characterized in that the reduction gear is designed as a single-stage planetary gear drive * whose web (22) carries the drive shaft for the tool (i)« 6ο fflaschina according to any one of claims 1 to 5, characterized in that that the stator (9) and the flattening housing {2) Enclosed barely oil-tight to accommodate a QI filling * » isto 7 .. Machine according to Mnspruci 3 _S characterized., Iaß the reduction gear together with starting clutch from a hydraulic gear ( ^: > Ό) according to the type of the-Töttingeii gear in the best way. that-immediately worn ' drive motive 3? (3.3 °) angötriebsn iüto ! flasctiine: according to a rlar Ansorücfs I to 7, by -. geksnn- '-drawn "that atf dar Abtr-isbsui aila (3) der Untt Kö einrichtuhg (13) sin jmle.ufarider * flanschansigei iJ t-rätjer- (26) did d \ jc sit on fjektoron sainer UnterE-ssite clamp-like "springs C'i" 7)? Halierunig it on sici oak named, on the uifctrkzeuggehäuss (23) attached & figured tragedies (23) aufFuieiste- 9 »Machines according to one of claims L to 8 _P daduroi indicated that the -Oe; .ihsal (4) 3ina safety device against unintentional'3 switching on of the machine e 10 «. Machine according Arspr _{UCT-9} 1} characterized 'gekann-zelcjhnet, let the safety device from a minclsstens, gölagerten on Ha.idgri'ff the Deichsei (4) Einschaltslement (32) zur'detäti ". generation of a fn micro switch (41) acting on the power supply system from the drive motor (3, 3) and an θ; .λθ opening of the knee bellows rod (34) or switching elements (41) causing further / switching elements ( 39) consists-, BAD LOCAL 80990T / 0300 14S3097 '-15- 11 «machine according to one of claims 1 to 10, characterized in that that that on a pivot axis (50) of the machine housing (2) pivotably mounted lower end of the drawbar (4) in a known Uleiso by means of a hand-operated one The locking pawl (52) is rigidly attached to the machine housing (2), toothed locking axis (51) can be fixed in various angular positions to the floor and that for l / ernißnung a backlash between the locking axis (51) and the drawbar (4) a friction lock or a friction brake (54) is arranged isto 12 «Slasehine according to claim 11, characterized in that the. Friction lock (54) from uiner on the pivot axis (5D) against a shoulder (55) of the same supported disc spring (56) and from one of these against the lower standard housing (48) pressed friction disc (57) consists " 13t) fascine according to claim 11 or 12, characterized in that the pivot axis (50) is mounted in the lower drawbar housing (48) and its ends (59) can be inserted into slotted bearing blocks (6i) of the lflaschinongesteiles (2), with the UrfT end face the locking shaft (51) is also fitted with a ragander pin (ft3) in the slot (62) of the associated position cock (61) to prevent rotation, _{or the like} 24o machine according to one of Claims 1 to 13, characterized in that a socket (64), which can optionally be connected to the power supply by means of a switch (65), is attached to the drawbar (4) for the connection of auxiliary devices _{or the like} 15o machine according to one of claims 1 to 14, characterized draws that at the nozzle {it)
gentank is releasably attached shows that on the drawbar (4) there is a known BATH 808901/03 00 l6o machine according to one of claims 1 to 15, characterized in that » .. shows that there is a spray unit on the machine housing (2) riphtung (66) for liquid floor wax is detachably attached I? _o Waschine according to claim 16, characterized in that the spraying device (66) ays is a container (67) for receiving the FXüssigtuachees lower at iJessen end are a spray nozzle (69} and a pump (6 &') is provided for spraying the (Hasse «, 18o machine according to claim 17 ₍ characterized in that the pump (6S) for spraying consists of a piston (70) which can be moved by a _{vibrating armature drive (72) connected to the piston rod (71) o} ' 19 _O Blaschine claim LSS _t in dadurch-, Dao the spraying device (66) "from a container (64) for: · receiving the Flüssigiuachse.s is, at its upper end a verschlieGtrare opening for supplying compressed air and at its bottom. At the end of a ventilated spray nozzle (6 °) are arranged ο Aachen, dtin 9 _O June 19ß4 For Fa ₀ Vejrtejt-Ibing K, ü. Uiolf ofang-Ko Hauh P AT ENTA * 'n Ui ALT BATH 809901/0300