DE19925375C2 - Sidewall head brush unit - Google Patents

Description

The invention relates to a side wall head brush unit according to the features of the preamble of claim 1.

Such a side wall head brush unit is for example known from US 3,965,521.

Another sidewall head brush unit describes DE 297 07 225 U1.

For polishing metal sinks, e.g. B. Such Be ten wall head brush units can be used. It is with "head brushes" the front part of the unit and with "Sidewall brush" the hollow cylindrical part of the unit designated. Both brushes are detachably arranged to each other.

Problematic with the known side wall head brushes unit is the central mounting bracket attached to a tool spindle must be coupled. The inside of the brush Orderly steel body is also known as a "brush holder" draws. This brush holder is on a shaft journal spanned.

Because the headbrush usually wears out faster than that Sidewall brush, this can be sepa in the prior art advice to be replaced.

The brushes have proved to be very problematic complicated assembly and disassembly effort highlighted. So the head brush is placed on the egg together with the side wall brush NEN body, which is connected to the drive spindle is attached and by means of a central hexagon socket screwed together. Against twisting the Head brush usually comes with two additional pins  are anchored to the receiving body and in corresponding sack Grip holes in the head brush, fixed.

The invention is therefore based on the object of a page wall-mounted head brush unit of the type mentioned at the beginning ben, the replacement of the head brush greatly simplified and at the same time also the production costs for the pages wall head brush unit lowers.

This object is solved by the features of claim 1.

This makes it possible to replace a used one Head brush this only from the side wall brush or unscrew from the receiving body. A new head brush can then simply be screwed on or off. To a ver to ensure rotation of the side wall brush points the receiving body has at least one groove into which one in the bar arranged according to the side wall brush takes hold. So even after a long period of operation, wall brush can be replaced without tools, is the The body is loosely connected to the side wall brush. For this purpose, the receiving body can have at least one latching body point, which is arranged in an interior of the side wall brush Engages locking body receptacle.

One embodiment of the invention provides for the first win deeinrichtung as an external thread and the second thread device training as an internal thread.

To loosen the headbrush during work prevent the slope (left or right) of the fastener thread opposite to the direction of brush rotation len.

The receiving body can advantageously be a latching body have two axially slightly offset pins that are spring loaded. It is also possible to use the pins  to be provided on the face with balls, which are in grooves in the In nenwandung the side wall brush are clickable.

Depending on the strength requirements, the receiving body can be made of Plastic or metal or a plastic-metal combination tion exist.

Further advantages and details of the invention result from the following description of an embodiment as well the only figure that is a perspective, partially ge sectioned exploded view of a sidewall head brush most unit shows.

As can be seen from the figure, a side wall-head brush unit 10 consists of a hollow cylindrical side wall brush 12 , to which a head brush or floor brush 14 can be detachably attached to an end face.

For this purpose, the side wall head brush unit 10 has a receiving body 16 which can be inserted into the side wall brush 12 . This receiving body has a first thread device or, in the exemplary embodiment shown, an external thread 18 . This external thread 18 can with egg ner in the head brush 14 fixed Seitengewindeein direction, or an internal thread 20 releasably engaged who brought the.

To prevent rotation, the receiving body 16 has two axially arranged grooves 22 . In these grooves 22 corre sponding recesses 24 engage, which are arranged on the inner wall of the tenwandbürste 12 .

So that the cylindrical receiving body 16 can snap into the side wall brush 12, there are two axially mutually slightly offset pins 26 in the receiving body 16 . The pins 26 have balls 28 on the end face, which engage in grooves in the inner wall of the side wall brush 12 .

So that later loosening of the entire side wall head brush unit 10 no loosening of the head brush 14 can occur, the direction of rotation of the polishing is opposite to the unscrewing direction of the head brush 14 .

Depending on the desired strength, the receiving body 16 may consist of plastic or metal or of a plastic-metal combination.

According to the invention, it is therefore possible to replace a used head brush 14 simply by unscrewing the used head brush 14 and by screwing in a new head brush 14 .

The brush holder body has at least one latching body on that one inside the side wall brush arranged locking body receptacle engages.

This keeps the side wall brush when changing the head brush fixed on the receiving body. A simple change of Head brush is possible.

Furthermore, the side wall brush can be changed when removing the head brush is easily stripped off the body the.  

Reference list

10th

Sidewall head brush unit

12th

Sidewall brush

14

Head brush, floor brush

16

Receiving body

18th

External thread, first thread device

20th

Internal thread, second thread device

22

Groove

24th

Recess

26

pen

28

Bullet

Claims (7)

1. side wall head brush unit ( 10 ) with a hollow cylinder-shaped side wall brush ( 12 ) on which a head brush or floor brush ( 14 ) is detachably attachable to a face, wherein
a receptacle body ( 16 ) can be inserted into the side wall brush ( 12 ) and has a first thread device ( 18 ) which can be releasably engaged with a second thread device ( 20 ) fixedly arranged in the head brush ( 14 ),
characterized in that the receiving body ( 16 ) has at least one groove ( 22 ) into which a recess ( 24 ) correspondingly arranged in the side wall brush ( 12 ) engages,
that the receiving body ( 16 ) with the side wall brush ( 12 ) is releasably connectable, and
that the receiving body ( 16 ) has at least one locking body ( 26 ) which engages in a locking body receptacle arranged inside the side wall brush ( 12 ). 2. side wall head brush unit ( 10 ) according to claim 1, characterized in that the first thread device ( 18 ) is an external thread ( 18 ), the second Ge thread device is an internal thread ( 20 ). 3. side wall head brush unit ( 10 ) according to claim 1 or 2, characterized in that two grooves ( 22 ) and recesses ( 24 ) are present. 4. side wall head brush unit ( 10 ) according to one of claims 1 to 3, characterized in that the screwing on the second thread device ( 20 ) or the internal thread ( 20 ) of the direction of rotation in the operation of the side wall head brush unit ( 10 ) is opposite. 5. side wall head brush unit ( 10 ) according to one of Ansprü che 1 to 4, characterized in that the Aufnah mekkörper ( 16 ) as a locking body has two axially slightly offset ver pins ( 26 ) which are spring-loaded. 6. side wall head brush unit ( 10 ) according to claim 5, characterized in that the pins ( 26 ) have frontally arranged balls ( 28 ) which are engaged in grooves in the inner wall of the side wall brush ( 12 ). 7. side wall head brush unit ( 10 ) according to one of Ansprü che 1 to 6, characterized in that the receiving mekkörper ( 16 ) made of plastic or metal or a plastic-metal combination.