DE19905871A1 - Cleaning device, comprising detachable handle joined with plug-in mechanism to exchangeable cleaning head, covered with micro-fibre cloth - Google Patents

Abstract

The cleaning device (16) comes in a shape similar to a dish washing brush. Its cleaning head (1) is covered by an inner and outer layer (2b,4) of micro fibre (2) with a foam rubber layer (3) between them. The bar-shaped handle (7) can be rotated around a bolt (10), which serves as a horizontal axle and is joined to a second bolt, which penetrates a disc (12) and a plug element, consisting of two soft rings (14,15) with a narrower rigid area (13) between them. When the plug is inserted into the space (2b) in the centre of the cleaning head (1) it is kept in place by the soft rings (14,15) which also act as seals. All materials are dishwasher proof.

Description

The invention relates to a cleaning brush for use as Dishwashing brush in the kitchen, as a brush for window glass cleaning or as General-purpose cleaning brush with a handle and an attached to it attached cleaning attachment.

Such cleaning brushes are already widely available on the market and are mostly made of one piece, d. H. Handle and cleaning attachment are connected to each other in one piece. The cleaning attachment exists from a base body in which brush bundles are embedded. The The main body of the cleaning attachment and the handle mostly consist of a plastic material or wood and the brush bundles mostly consist from another, flexible plastic material or just from one cellulosic material.

The disadvantage of these embodiments is that when part of them wears out Cleaning brush, namely mostly the brush bundle, the whole Cleaning brush must be replaced and not permanently by this insignificant material wear are associated with correspondingly high costs.

The need to replace the entire cleaning brush can be explained by mechanical wear become necessary, or by appropriate  deteriorated hygiene such as B. in the connection area of the brush bundle in the cleaning attachment, with the material of the brush bundle itself, especially with cellulosic material and / or the handles and cleaning attachments wooden.

Because in the household more and more cleaning the kitchen and Household appliances runs over dishwashers, z. Belly Cleaning brushes for dishwashing purposes also placed in dishwashers and there cleaned, which means that wood or cellulose-containing materials just pass through Detergent and the mostly prevailing temperatures of 65 ° Degree of cracking occurs, and thus the hygiene conditions deteriorate.

For cleaning brushes made of plastic materials, the appropriate detergents, salts and rinse aid in the dishwasher Plasticizers washed out of the plastics and thus it becomes The material of the cleaning brushes becomes brittle and brittle over time in particular the handle or the connecting part between the handle and Cleaning attachments then tend to break.

To keep the material wear within limits, another sees Embodiment of the cleaning brushes of the prior art a split Embodiment between the handle and cleaning body before. Thus at premature wear of one of the two parts, the worn part can be replaced without the still unused part being discarded got to. This saves material and the cost of a new purchase accordingly lowered.

Disadvantage of this embodiment with a divided handle and cleaning attachment is that the connection between the handle and cleaning body is mechanical is not designed to be stable enough and, in addition, the connection Hygiene conditions are deteriorated accordingly, because in Connection area can increasingly colonize germs.

The connection between the handle and the cleaning body takes place at the stand the technology via a clamp connection, generally at the end of Handles, which has to take up the cleaning attachment, a fork-like Clamp is attached, which in a corresponding groove on the cleaning attachment  clinging and springy intervenes. The bracket itself usually consists of one Spring wire, which is not detachably attached to the handle, but can Cleaning attachment easily disengaged from this bracket become.

With toothbrushes, it is already known to have a replaceable cleaning head use, which however has the disadvantage that this cleaning head to the handle has a gap surface that is not sealed and thus in turn Germs undisturbed in this gap between the handle and cleaning head settle and can grow undisturbed there at correspondingly cheap Ambient conditions (moisture, food residues etc.).

Because the brush bundles of the cleaning attachment have a certain hardness must, since the service life of the brush head should be long enough such a brush of the prior art is not used universally be because when cleaning with a conventional brush head z. B. from Window glass there is a risk that the window glass will be scratched. In addition due to the incomplete coverage of the brush bundle on the cleaning surface an increased cleaning movement can be accomplished, to touch every point of the surface to be cleaned.

Since the cleaning bristles are mostly made of plastic, or one Cellulose material, with the cleaning brush must constantly water again be added to continue the cleaning process.

The object of the present invention is now a cleaning brush of the above mentioned type so that with less material wear the replacement cost of using and cleaning the brushes is low are kept, the hygiene conditions when using the Cleaning brush can be improved, the cleaning brush can be used universally is, the mechanical stability of the cleaning brush is increased, the handling while using the cleaning brush and cleaning the Cleaning brush is improved, and the cleaning efficiency of the Cleaning brush is increased.

The technical teaching of the independent claim 1.  

An essential feature here is that the cleaning brush from a handle and a cleaning attachment, which are detachably connected to each other, where handle and cleaning attachment to each other via a sealing unit be stuck in a non-slipping manner.

It is therefore between the jamming of elastic seals Handle and cleaning attachment have a high mechanical strength Connection of these two parts is achieved, and thus the stability during the Cleaning phase ensured.

There can be essentially none between the handle and the cleaning attachment Relative movement after attaching these two parts to each other more occur.

In a preferred embodiment, this sealing unit is on the handle appropriate. However, the present invention is not intended to be limited in this regard will be attached to the cleaning attachment, since the sealing set is in principle also attached can, which then engages in a corresponding counterpart of the handle.

The clamping itself is preferably accomplished via a toggle lever, which is attached to one end of the handle. Through these toggle Mechanics in connection with a tie rod thus become a sealing set elastically resiliently squeezed axially and thereby radially to the plant on brought other part of the cleaning brush to be connected.

However, the invention is not intended to be restricted in that a Knee lever is used, but there are other embodiments be provided which resiliently deforms the seal set and thereby the hand lever and the cleaning attachment so releasably together be connected that these two parts are essentially none Can perform relative movement to each other.

It can also be provided that, for. B. a mandrel attached to the handle with a collar in the hole on the cleaning attachment Sealing body is introduced, this mandrel a larger Has outer diameter, such as the diameter of the holes in the Sealing rings. This also makes the sealing body elastic resiliently deformed and there is again a releasable connection between  Handle and cleaning attachment, again no relative movement can essentially take place between the handle and cleaning attachment.

In another embodiment, it should be provided that a spherical Attachment at the end of the handle in the holes in the sealing rings is inserted, the sealing rings on the cleaning attachment are attached accordingly. The diameter of the ball is again larger than the diameters of the sealing rings and thus the sealing rings are through the insertion of the ball in its bores in turn resiliently deformed and there is again a detachable connection between the handle and Cleaning attachment. The handle itself can be reversed Order are pulled out of the bore of the sealing rings, whereby the sealing rings each in turn are essentially elastic in their Reshape the starting position.

This elastic deformation of the sealing rings also creates a seal between the handle and cleaning attachment or between the respective Recording and the respective plunger reached. This will make the Hygiene conditions during operation improved in that Connection between handle and cleaning attachment essentially none Moisture can penetrate.

Of course, it can also be provided that the sealing rings in the handle themselves, where they can be elastically deformed, and which in the Drilling of the sealing rings in accordance with the mandrel to be inserted in / on Cleaning attachment itself is attached.

In a preferred embodiment of the invention it is provided that the Sealing rings are attached to the handle and via a toggle mechanism can be compressed resiliently. At this In a manner known per se, a toggle pin is preferred actuated, which the sealing rings between a stationary on the pull pin attached collar and one on the traction pin concentric and axial slidably mounted second collar resiliently clamped in such a way that the outer diameter of the sealing rings increases. The second on the Tension pin concentrically and axially displaceably mounted collar is thus through the Cam of the toggle lever towards the first, at the other end of the pull pin fixed federally moves and thereby presses the between the  sealing rings lying together in two bundles, which are thereby radial enlarge.

The enlargement of the sealing rings must of course be designed such that they the corresponding hole in the counterpart, for example in the Then fill the cleaning attachment fully and clamp the hand lever in the Hold the cleaning attachment.

The cleaning attachment thus preferably has a receiving bore, in which the sealing rings are stored, or a corresponding one Bracket in which the sealing rings together with a engage the corresponding plunger of the handle.

This mounting socket is located inside an inner cup of the Cleaning attachment, which inner cup is inserted into an outer cup and there preferably via a detent z. B. in the form of a barb.

This is located between the inner and outer cups actual cleaning cloth in the form of a microfiber cloth and an optional Liner z. B. a foam layer, for increasing the softness of the Cleaning attachment and increasing the water absorption capacity.

The microfiber cloth is jammed between the inner and outer cups of the Cleaning attachment and covers the outer cup in its outer Cladding area and in its end area facing away from the handle Completely.

However, the invention is not intended to be restricted in this respect, it can also it should be provided that the microfiber cloth only parts of the outer jacket or the front of the cleaning attachment and covered in the free Areas other cleaning materials are attached, or there is free space is left to attach labels, brands, labels or else Copywriting.

In a preferred embodiment, the cleaning attachment is cylindrical formed, so inner cups and outer cups are tubular, with the face on the side opposite the handle Cover plates with the respective tubular inner or outer bodies  are preferably connected in one piece, so that in principle actually Cleaning attachment consists of two nested cups, between the actual cleaning cloth is clamped and supported.

The connection should not, however, to a cylindrical embodiment to be restricted, other forms of the cleaning attachment should also be used be possible, e.g. B. elliptical shapes, or square shapes, important here, however, is only that an inner part is in a larger outer part and thus the cleaning cloth between the inner and outer part is jammed and is determined supportive.

The inner cup does not necessarily have to be tubular, but rather it can also be radial around the receiving bore of the handle extending slide can be provided, which the microfiber fleece between the radial end of the slide of the inner cup and the inner surface of the Hold the outer cup with a clamp.

The microfiber cloth itself is star-shaped for better material utilization cut out. The microfiber cloth preferably consists of eight star-shaped Arranged microfiber rag, which when wrapping the outer cup or when clamping between the inner cup and outer cup these rags then lie essentially together between the inner cup and outer cup thus preventing too much material from being present within this clamp is and therefore a sufficient clamping is no longer guaranteed.

In the series production of these microfiber cloths, the respective can rags to be punched out of a microfiber cloth into the spaces engage between the flaps of another microfiber cloth, which in turn saves material. So it's not just constructive advantages, that the microfiber cloth is star-shaped, but also pure economic reasons.

Instead of the snap connection via a barb between the inside and Outside cup can also be provided that the clamping between the inner and outer cups, between which the microfiber cloth and the optional Intermediate layer is clamped, is so closely tolerated that an additional Screening in the form of a barb is no longer necessary since the connection  between the inner and outer cups by the clamping between them both parts takes place.

By pulling hard on, inserted into the cleaning attachment and locked, grab handle it should be possible to separate the two parts from each other disconnect and possibly only change the microfiber cloth.

This may be necessary because the microfiber cloth may be contaminated or else is mechanically worn, or because of another type of microfiber cloth to be used with other properties. Another microfiber cloth with other properties may be necessary because the invention Cleaning brush also has the advantage of being used universally. For the different locations or the different ones to be cleaned Objects can only be used against another microfiber cloth Microfiber cloth or be replaced with another cleaning textile without that the entire cleaning attachment has to be changed.

This should also be possible when using mechanical locking between the inner and outer cups, the latching in the form of a Barb should be designed to be releasable.

The subject matter of the present invention does not only result from the subject of the individual claims, but also from the Combination of the individual claims.

All disclosed in the file, including the summary Information and features, especially those shown in the drawings spatial education are claimed as essential to the invention, insofar as they individually or in combination are new compared to the prior art.

In the following, the invention will be explained using only one embodiment illustrative drawings explained in more detail. Here go from the drawings and its description further features and advantages of the invention Invention.

The figures show in detail:

Fig. 1 shows the cleaning attachment according to the invention with mechanical locking with tubular inner and outer cup, intermediate layer and inner cup with tubular receiving bore;

Fig. 2 shows the microfiber cloth according to the invention, which is star-shaped;

Fig. 3 shows the handle according to the invention with pull pin and sealing group;

Fig. 4 shows the cleaning brush according to the invention in the assembled state or operating state.

Fig. 1 shows the cleaning article 1 according to the invention in a tubular, rotationally symmetrical shape, with the inner sleeve 5 on its side facing away from the handle end is a detent connected to each other via a barb 4 with the outer cup 4. The barb 4 a is integrally connected to the outer cup 4 and passes through a central bore 5 b on the end face of the inner cup 5 .

Around the outer cup 4 there is the microfiber cloth 2 , which lies on the end face of the outer cup 4 and on its outer surface and is approximately flat and around the free edge of the outer surface of the outer cup 4 into the space between the outer cup 4 and the inner cup 5 with its tabs 2 a is inserted and is clamped there.

The inner region 2 b of the microfiber cloth 2 then lies approximately in the region of the end face of the outer cup 4 and in the jacket region of the outer cup 4 .

An optional intermediate layer 3 can be seen between the outer cup 4 and the microfiber cloth 2 , which determines the softness of the brush and the water absorption capacity. This intermediate layer 3 , which preferably consists of foam, has essentially the same cut shape as the microfiber cloth 2 , so it is also preferably cut in a star shape. The inner cup has a central mounting sleeve 5 a, which extends from the end face of the inner cup 5 to the upper free edge of the inner cup 5 and is also tubular here. The counterpart of the handle 6 is then received therein.

In FIG. 2 fiber cloth 2 according to the invention is shown, which is designed in a star shape to make optimum use to provide optimum grip between the inner and outer cup to ensure and around the microfiber material.

The microfiber cloth 2 according to the invention thus has eight star-shaped microfiber flaps 2 a, which form an inner region 2 b in the inner region of the microfiber cloth 2 , which comes to rest on the end face and on the outer surface of the outer cup 4 .

In Fig. 3, the handle 6 according to the invention is shown, which consists of a handle 7, which faces to his, the cleaning article 1, pages comprises a toggle lever 8 and a connecting piece 11 to 15.

The toggle lever mechanism consists in that in the handle 7 , at the free end of which a groove is formed, through which groove on the handle 7 a fork 9 is formed, in which a pull pin 11 with its bearing part 11 b is pivotally mounted via a holding pin 10 .

The retaining pin 11 passes through a central bore in a plate 12 , which plate 12 is mounted concentrically between the handle 7 and the sealing unit 13 to 15 and is axially displaceably seated on the tension pin 11 . The plate 12 thus has an upper flat surface 12 a, which faces the handle 7 and whereupon the fork 9 of the handle 7 can rotate and a lower flat surface 12 b, on which an upper sealing ring 14 rests.

This upper sealing ring 14 is supported via its central bore below the plate 12 on the tension pin 11 , as is an intermediate ring 13 and a further lower sealing ring 15 . The lower end of this seal group 13-15 forms a collar 11 a of the tension pin 11 .

Between the flat surface 12 b of the plate 12 and the collar 11 a of the tension pin 11 are therefore two sealing rings 14 and 15 with an intermediate ring 13 located between them, the sealing rings 14 and 15 being essentially flush with the flat surface 12 b, the end faces of the Intermediate ring 13 and the collar 11 a rest, but not deformed in the unclamped state.

The elastic deformation of these sealing rings 14 , 15 takes place via the mechanics of the toggle lever 8 , a lever in the form of the handle 7 being pivoted in a manner known per se by a corresponding angle around the axis of the holding pin 10 and thus the fork 9 with its cam attached on the end face on the upper plane surface 12 a of the plate 12 expires.

Since the distance between the axis of the holding pin 10 and the flat surface 12 a changes constantly during this movement by the cam of the fork 9 , the plate 12 is pressed down in the direction of the sealing unit 13 to 15 and there onto the fixed collar 11 a of the tension pin 11 Which pull pin 11 is in turn rigidly connected to the handle 7 or the holding pin 10 .

Characterized the sealing rings are clamped resiliently springs 14 and 15 on the one hand between the plate 12 and intermediate ring 13, and on the other between the ring 13 and collar 11 a of the Zugstiftes. 11 As a result, the outer diameter of the sealing rings 14 and 15 increases radially outward and thus the connection between the handle and the cleaning attachment is created according to the invention when the sealing region 11 , 13 to 15 is inserted into the holding bush 5 a.

The respective radially enlarged jacket of the sealing rings 14 and 15 comes into contact with the mounting bush 5 a and creates a corresponding clamping connection there, so that a relative movement between the handle 6 and the cleaning attachment 1 is essentially no longer possible. In addition, the mounting bush 5 is sealed off from the outside.

FIG. 4 shows the cleaning brush according to the invention 16 in the assembled state, wherein all reference numerals have the same meaning ° angle occurs as in the other Figs. 1 to 3. The handle 6 approximately in the 90 to the bracket bushing 5a of the inner cup 5 of the cleaning article 1 to lie after the clamping, other angles such as 120 ° also being provided.

Drawing legend

1

Cleaning attachment

2nd

Microfiber cloth

2nd

a microfiber cloth

2nd

b indoor area

3rd

Liner

4th

Outer cup

4th

a barb

5

Inner cup

5

a bracket bushing

5

b hole

6

Grab handle

7

Handle

8th

Toggle lever

9

fork

10th

Retaining pin

11

Pull pin

11

a covenant

11

b storage part

12th

Plate

12th

a upper flat surface

12th

b lower flat surface

13

Intermediate ring

14

upper sealing ring

15

lower sealing ring

16

Cleaning brush

Claims (13)

1. Cleaning brush with a handle ( 6 ) and a detachably attached cleaning attachment ( 1 ), characterized in that the handle ( 6 ) and the cleaning attachment ( 1 ) are clamped to one another essentially non-slip but releasably via a sealing unit. 2. Cleaning brush according to claim 1, characterized in that the sealing unit is attached to the handle ( 6 ) and engages in a corresponding mounting bush ( 5 a) on the cleaning attachment ( 1 ) in a clamping and sealing manner. 3. Cleaning brush according to claim 1, characterized in that the sealing unit is attached to the cleaning attachment ( 1 ) and engages in a corresponding counterpart on the handle ( 6 ) in a clamping and sealing manner. 4. Cleaning brush according to claim 2 or 3, characterized in that the sealing unit consists of at least one elastically deformable sealing ring ( 14 ) which has a central bore into which a pin-shaped holding element for connection between the handle ( 6 ) and cleaning attachment ( 1 ) engages . 5. Cleaning brush according to claim 4, characterized in that if there is more than one elastically deformable sealing ring ( 14 , 15 ) there is at least one essentially non-deformable intermediate ring ( 13 ) which has a central bore into which a pin-shaped holding element for connection between Handle ( 6 ) and cleaning attachment ( 1 ) engages. 6. Cleaning brush according to claims 2-5, characterized in that in the bores of the sealing rings ( 14 , 15 ) and the intermediate rings ( 13 ) engages a pull pin ( 11 ) which has a collar ( 11 a) at its free end which the seal set ( 13-15 ) rests on the front, which can be pressed onto the collar ( 11 a) by means of a toggle mechanism ( 8 ) over a plate ( 12 ). 7. Cleaning brush according to claim 2, 4-6, characterized in that the cleaning attachment ( 1 ) has a substantially central mounting bush ( 5 a), in which the sealing unit ( 13-15 ) together with a corresponding plunger ( 11 , 11 a ) of the handle ( 6 ) engages. 8. Cleaning brush according to claims 1-7, characterized in that the cleaning attachment ( 1 ) consists essentially of an outer cup ( 4 ), a clamping inner cup ( 5 ) and one between the outer ( 4 ) and inner cup ( 5 ) so clamped Microfiber cloth ( 2 ) is that the microfiber cloth ( 2 ) essentially covers the inner and outer jacket area and the outer end area of the outer cup ( 4 ). 9. Cleaning brush according to claim 8, characterized in that the outer cup ( 4 ) and inner cup ( 5 ) are additionally releasably connected to one another via a barb ( 4 a). 10. Cleaning brush according to claim 9, characterized in that the barb ( 4 a) is located approximately centrally on the inner end face of the outer cup ( 4 ) and engages in a corresponding bore ( 5 b) which is approximately centered in the end face of the inner cup ( 5 ) located. 11. Cleaning brush according to claims 1-10, characterized in that an intermediate layer ( 3 ) made of foam is introduced at least partially between the outer cup ( 4 ) and microfiber cloth ( 2 ). 12. Cleaning brush according to claim 1-11, characterized in that the inner cup ( 5 ) instead of its lateral surfaces, radially star-shaped around the central mounting sleeve ( 5 a) has slider, which slider the microfiber cloth ( 2 ) between its radial end faces and the inner Hold the outer surface of the outer cup ( 4 ) firmly. 13. Cleaning brush according to claims 1-12, characterized in that the microfiber cloth ( 2 ) has a plurality, arranged around a substantially central inner region ( 2 b), microfiber cloth ( 2 a).