Cleaning trolley

The present invention relates to a cleaning cart, with a base, at least three laterally or under the Base arranged wheels and a base on the arranged structure for receiving cleaning utensils and a handle.

Cleaning trolley of this type are in the most diverse Embodiments have long been known. The base which usually as a supporting platform or frame arrangement is formed, can consist of a plastic or Metal plate or a metal tubular structures consist.

The structure for receiving the cleaning utensils is mostly of a column construction and a Rack assembly formed of lance that in Depending on the intended use made variable and often composed by a type of modular system can be.

In particular, in the office or hospital operation is necessary, in addition to cleaning utensils also larger Liquid containers, such as buckets or troughs Cleaning water or presses on the Wischmopgeräte carry cleaning trolley. In this manner Equipped Cleaning Carts are relatively heavy and must especially in hospital operating over longer Lines are moved. This does not require a inconsiderable power use and results Fatigue of the cleaning efficiency, thereby for cleaning an increased expenditure of time must be provided.

Object of the present invention is therefore a to provide cleaning carriage which even in severe Loading labor-saving and effortless to move and is simple.

This object is achieved in that on the underside of the base at least one electric motor each standing in operative connection gear is arranged which acts on at least one of the wheels.

Transport vehicles for the transport of loads, from a Electric motor are driven, are Basic equipment of industrial enterprises. you are However, technically very complex and have relatively large-volume drives. Such constructions are not for use of cleaning cars, as these comparatively filigree designed and Cleaning materials in order to achieve an anti-fatigue arranged insert ergonomically must be such that for conventional drives no capacity is available.

While it is for hand-held car, such as golf carts, children or shopping cart already known electric drives provide (see. for example, DE 199 09 020). Such Electric drives are but for reasons of space mostly in the Central axis of the driving wheel arranged, that is, as so-called "hub drive" a way for the sake of small space requirement in the hub area consuming Structures and particular gear assemblies requires the relatively expensive and therefore for use are also not suitable in cleaning trolley.

The invention is based on the idea, instead of conventional heavy industrial drives or elaborate Hub drives a kind of "underground" construction to provide that the already necessary for the Ground clearance of the cleaning cart required space exploits at the base and create more space in the Range of provided on the base structure requires.

It is advantageous if, in addition to or the electric motors and the respectively associated with these transmission arrangements also necessary as the energy storage batteries assembly Also on the underside of the base is attached. Depending on the purpose and duration However, the accumulators arrangement may optionally also in the area of ​​the top of the base between the Cleaning utensils are placed.

In principle, for control of the or Electric motors of any suitable control can be provided. So it is possible, for example a boost sensor provide that the or the electric motors energy supplied from the accumulators arrangement once the Operator a thrust on the handle or the Cart exercises. A particularly simple and cost-effective Construction results, however, when the the with the or Electric motors and batteries-bonded assembly Control arrangement of a simple actuator is in the area of ​​the handle, as control For example, a slider, rotary handle, joystick or the like may have.

Basically rich for driving such Cleaning trolley three from edges. It is advantageous However, when four wheels are arranged under the base are provided, of which two wheels fixed and two wheels are designed as so-called steering wheels.

Basically, the wheels can be in any manner be arranged. It is advantageous, however, if - in seen the direction of travel - the fixed wheels approximately in the middle the car in the area of ​​the side edges of the base and the a movable wheel respectively centrally in the region of arranged front edge and the rear edge of the base is.

A particularly simple design and in terms of CG optimal arrangement is achieved when the heavy elements of the drive, such as the electric motor, the Gear assembly and the accumulator arrangement as in the center of the base, ie the platform or the Frame assembly are arranged. selected depending on the System offer the widest possible range constellation at. A particularly flat and the ground clearance only slightly reducing arrangement is achieved, if approximately in the center of the base two electric motors are arranged with in each case via a transmission in each case one of the fixed wheels are operatively connected.

However, it is also possible, for example in the center of the base only to arrange an electric motor and this over a transmission with differential arranged fixed with the coupling wheels.

To recharge the batteries-arrangement after To simplify cleaning and drive operation, it is advantageously, in the edge region of the base, ie the platform or the frame assembly a so-called "docking bar" to arrange. The operator must then only the Docking bar to the parking station of the cleaning cart with a fixedly arranged on a wall or the like bring loading ledge in connection that the via contacts Accumulators arrangement arranged stationary with a Charger connects.

When using a cleaning trolley according to the invention in spacious buildings such as airports, railway stations or Hospitals, is the path from the parking station to to the site often several hundred meters, in Special cases several kilometers.

In such cases, it is advantageous for the base of Cleaning trolley with a stand device for a Operator equip.

Basically, the state apparatus, in the varied ways be configured. That's the way it is for example, possible that prior device in the base to integrate.

It is particularly advantageous, however, the stand equipment as dockable to the base operator platform to design, in turn, equipped with wheels is.

Below is for further explanation and better Understanding an embodiment of the invention under Reference to the accompanying drawings, in which described and illustrated.<dl tsize="7"><dt>figure 1</dt><dd>shows a perspective view of a Cleaning trolley with a base in the form of a Platform, as well as a structure for holding Cleaning utensils,</dd><dt>figure 2</dt><dd>shows the platform of the cleaning cart (without Construction) in a plan view, wherein the Elements and the arrangement of the drive with dotted lines are shown,</dd><dt>figure 3</dt><dd>shows a side view of the platform (without Construction) from a ground perspective and</dd><dt>figure 4</dt><dd>shows in the Figure 1 corresponding perspective view of a cleaning cart with a stand device for a Operator.</dd></dl>

As shown in Figure 1, the cleaning trolley of a base in the form of a platform 1, of the Platform 1 arranged wheels 2, and one on the Platform 1 arranged structure 3, the only partially constructed clarity and is unloaded, that is shown without cleaning utensils.

In the present embodiment, the structure 3 is provided with a handle 4 provided in the form of a handle.

As is particularly apparent from Figure 2, the illustrated cleaning cart four wheels 2, by which seen in the direction F, in the middle of the car in the area of ​​the side edges 5 two fixed wheels and 2 per a movable wheel respectively centrally in the region of Front edge 6 and the trailing edge 7 of the platform 1 is arranged.

The illustrated embodiment has a drive with two electric motors 8, each via a gear 9 with the associated fixed wheel 2 in the region of the Margins 5 are operatively connected. The area in the front edge 6 and trailing edge 7 arranged centrally Wheels 2 are steerable.

In the present embodiment, is composed of two Accumulators 10 accumulators existing arrangement also arranged on the underside of the platform first

The electric motors 8 are shown at Embodiment with the accumulators 10 a electronic control means (not shown) connected. The control arrangement is a Actuating device 11 (Figure 1), which in Area of ​​the handle 4 is arranged and a joystick 12, via which the rotational speed of the two Electric motors are each independently in a known manner can be controlled.

is In the embodiment shown in Figure 4 the cleaning trolley according to the invention with a Stand device 13 for an operator 14 equipped.

The stand device 13 is in this embodiment, from a standing platform 15 for the operator 14 formed by a suitable coupling means (Not shown) to the base 1 of the cleaning cart can be coupled.

The operator platform 15 is provided with separate wheels 16 provided that the brunt of the weight Operator 14 wear on the floor.

The arrangement shown in Figure 4 has the advantage that the cleaning trolley relatively fast and easy for the respective operation can be retrofitted.