阅读说明：本技术 可旋转的清洁辊和具有这种清洁辊的清扫装置 (Rotatable cleaning roller and cleaning device with the same ) 是由 N·韦斯 于 2018-07-30 设计创作，主要内容包括：本发明涉及一种可旋转的清洁辊(10),所述清洁辊具有中央的轴(1)和刷毛(3)的以至少一排设置在所述轴(1)上的刷毛束(2)。给每排刷毛束(2)配设至少一个柔性的板条(4),所述板条(4)安装在中央的所述轴(1)上,所述板条直接与一排刷毛束(2)邻接地设置并且在刷毛(3)高度的一部分上延伸,使得所述板条(4)从一侧接触并支承刷毛束(2)。这种可旋转的清洁辊(10)有利地使得能够可靠地拾取长纤维并且特别是头发,以及还有动物毛发。(The invention relates to a rotatable cleaning roller (10) having a central shaft (1) and bristle bundles (2) of bristles (3) arranged in at least one row on the shaft (1). At least one flexible strip (4) is associated with each row of bristle bundles (2), said strip (4) being mounted on the central shaft (1) and being arranged directly adjacent to a row of bristle bundles (2) and extending over a portion of the height of the bristles (3) such that the strip (4) contacts and supports the bristle bundles (2) from one side. Such a rotatable cleaning roller (10) advantageously makes it possible to reliably pick up long fibers and in particular hair, and also animal hair.)

1. A rotatable cleaning roller (10) having a central shaft (1) and bristle bundles (2) of bristles (3) arranged in at least one row on the shaft (1), characterized in that each row of bristle bundles (2) is assigned at least one flexible strip (4), which strip (4) is mounted on the central shaft (1) and which strip is arranged directly adjacent to a row of bristle bundles (2) and extends over a portion of the height of the bristles (3) such that the strip (4) contacts and supports the bristle bundles (2) from one side.

2. The rotatable cleaning roller according to claim 1, characterized in that the bristles (3) of a row of bristle tufts (2) form a continuous bristle strip (5).

3. The rotatable cleaning roller as claimed in one of the preceding claims, characterized in that a further flexible strip (4) is assigned to each row of bristle tufts (2) in such a way that the row of bristle tufts (2) is enclosed on both sides by a respective flexible strip (4).

4. The rotatable cleaning roller according to one of the preceding claims, characterized in that at least two rows of bristle tufts (2) are provided, between which rows of bristle tufts (2) a flexible cleaning lip (6) is mounted on the shaft (1).

5. The rotatable scrub roller of any of the preceding claims, wherein said at least one row of bristle tufts (2) and/or said at least one slat (4) extends substantially across the width (B) of the scrub roller (10).

6. The rotatable scrub roller of any of the above claims, wherein said at least one row of bristle tufts (2) and said at least one slat (4) are helically mounted on said shaft (1).

7. The rotatable scrub roller of claims 5 and 6, wherein said at least one row of bristle tufts (2) and/or said at least one slat (4) are bifurcated across the width (B) of the roller (10) and have different slopes.

8. The rotatable scrub roller of any of the preceding claims, characterized in that a thermoplastic elastomer is used as material for said at least one slat (4).

9. Use of a rotatable scrub roller (10) according to one of the preceding claims for cleaning a surface contaminated with hair, in particular animal hair.

10. Sweeping device, in particular a cleaning robot, having a rotatable cleaning roller (10) according to one of claims 1 to 8.

11. Method for manufacturing a rotatable cleaning roller (10), in particular according to one of claims 1 to 8, with the following steps:

a) the bundles (2) of bristles (3) are inserted into a shaft (1) to form at least one row of bundles (2)

b) For each row of bristle tufts (2), at least one flexible strip (4) is fixed to the shaft (1), the strip (4) being arranged directly adjacent to the row of bristle tufts (2), and the strip (4) contacting and supporting the bristle tufts (2).

Technical Field

The present invention relates to a rotatable cleaning roller according to the preamble of claim 1. The invention further relates to the use of such a rotatable cleaning roller according to claim 9, to a sweeping device having such a rotatable cleaning roller according to claim 10 and to a method for producing such a rotatable cleaning roller according to claim 11.

Background

Cleaning devices which can be manually pushed across the surface to be cleaned are known from the prior art. Dirt is picked up as relative movement occurs between the cleaning device and the surface to be cleaned. DE 102007061607 a1 describes, for example, a manually operated manual cleaning device which has, in principle, a brush roller which can be driven in rotation. Dirt is conveyed by the brush roller into a dirt container arranged directly adjacent to it. Here, the brush roller is equipped with a plurality of bristle bundles distributed over the circumference of the brush roller. It is also known to use cleaning rollers in self-propelled cleaning robots which automatically move over the surface to be cleaned. DE 102011014734 a1 discloses a self-cleaning device for cleaning floors. Such a cleaning device has a cleaning apparatus, which can be designed, for example, as a cleaning roller.

It is common in the prior art to design such a cleaning roller as a brush roller which is provided in its outer circumferential region with a set of bristle bundles projecting radially outward. See for example EP 0653173 a 1.

If the surface to be cleaned is contaminated with a large amount of long fibers, for example, by hair, there is a problem in that the fibers are wound around the cleaning roller when the cleaning roller rotates, and the fibers are pulled into the bottom of the bundle of bristles. Therefore, in order to maintain the cleaning performance of the cleaning device, these fibers must be removed from the cleaning roller periodically. However, if the fibers are tightly wound around the scrub roller and pulled deep into the bristle structure, the cleaning process of the scrub roller is very cumbersome and can only be laboriously removed. It is therefore also known from the prior art to provide a cleaning roller with flexible flaps made of rubber or elastomer, which protrude from the cleaning roller, instead of a brush roller. Here, the flexible tabs may be arranged, for example, helically on a neutral shaft, as disclosed in DE 3933722 a 1. Although such a cleaning roller can be cleaned easily at regular intervals and long fibers such as especially hair can be removed quickly, the cleaning performance of a cleaning roller equipped with flexible flaps is not yet satisfactory. Such a cleaning roller cannot reliably pick up longer fibers, such as in particular hair.

Disclosure of Invention

It is therefore an object of the present invention to provide a rotatable cleaning roller which can achieve high cleaning performance in operation and can be cleaned easily during an intermittent operation. Another object is to improve the design of the rotatable scrub roller such that long fibers and especially hair, such as animal hair, can be reliably picked up.

This object is achieved by a rotatable cleaning roller having the features of claim 1.

The rotatable scrub roller has a central shaft and a plurality of bristles are disposed on the shaft in at least one row. Here, the bristles are fixed in bundles on or in the shaft.

According to the invention, at least one flexible strip is associated with each row of bristle tufts, said strip being mounted on the shaft so as to project radially. Here, the fastening design can be form-locked or material-locked, for example by providing grooves in the roller or by gluing. The strip is arranged directly adjacent to the row of bristle bundles and extends in particular only over a portion of the bristle height, so that it contacts and supports the bristle bundles from one side, in particular in the lower region of the bristle bundles. In other words: the bristles project radially from the strip. As the strip rests against the bristle bundles of the bristles, the bristles in a row are pressed side by side, so that a continuous bristle strip with a continuous cleaning line is formed. This advantageously ensures that the bristles can directly abut one another and dirt cannot pass between the bristles. Whereby the bristles can reliably pick up the target dirt. It is also advantageous that long fibers, such as hair, are not entangled in the base of the bristles, i.e. between the position where the bristles are accommodated in the central shaft and the upper edge of the flexible strip. The elongate fibers are drawn at most into the upper edge of the flexible strip and can thus be easily removed from the rotatable cleaning roller by a pulling-out movement or by means of cutting. Thereby, the rotatable cleaning roller can be cleaned easily and quickly during the work pause.

In an advantageous development of the rotatable cleaning roller according to the invention, a further flexible strip is assigned to each row of bristle tufts, which strip is mounted radially projecting on the central shaft and extends over only a part of the bristle height, so that the bristle tuft rows are each enclosed on both sides by a flexible strip. In this embodiment of the rotatable cleaning roller, the bristle bundles are particularly well supported in their lower region, but nevertheless remain highly flexible in their upper region. A particularly good sweeping performance is thus achieved.

In an advantageous embodiment of the rotatable cleaning roller, at least two rows of bristle bundles are provided, between which a radially protruding flexible sweeping lip is mounted on the shaft. Here, the flexible sweeping lip may be made of an elastomer or of rubber. The provision of a flexible sweeping lip between two rows of bristle bundles advantageously helps to prevent dirt particles, i.e. longer fibers, from becoming entangled around the rotatable cleaning roller during rotation of the latter. In a development of the rotatable scrub roller, the at least one row of bristle tufts and/or the at least one slat extends substantially across the width of the scrub roller. No intermediate spaces are created through which dirt particles can pass.

According to the invention, it has been found to be advantageous to mount the at least one row of bristle tufts, the at least one slat and, if present, the flexible sweeping lip on the shaft in a spiral, similar to a spiral with a small pitch.

In a further development of this embodiment variant, it can be provided that the at least one row of bristle tufts and/or the at least one web and/or the sweeping lip, if present, is/are divided into two parts over the width of the cleaning roller and has different inclinations, i.e. that a first part with a right-hand thread and a second part with a left-hand thread are mounted on the shaft in a screw-like manner. Here, the advantage of a helically arranged cleaning element is that a continuous and efficient sweeping movement can be performed instead of only a short wiping movement.

The invention also relates to the use of a cleaning roller as described above for cleaning a surface, for example for sweeping hair, in particular animal hair, from a floor.

Furthermore, the invention relates to a cleaning device, in particular a cleaning robot, having a cleaning roller as described above. The invention also relates to a method for producing a cleaning roller as described above, having the following steps:

in a first step, the bristle bundles of bristles are inserted into and fixed, for example glued, to the shaft, i.e. the recess of the roller body provided for this purpose, in order to form at least one row of bristle bundles. In a second step, for each row of bristle tufts, the fixing of at least one flexible strip to the shaft is effected, which strip is arranged directly adjacent to the row of bristle tufts and which strip contacts and supports the bristle tufts. The fastening can be performed in a material-locking and/or form-locking manner. A particularly simple production method is thereby described, which can also be applied to the known production methods of brushes and brush rollers.

The invention described and the advantageous developments described in the invention can also be combined with one another to form advantageous developments of the invention, if technically reasonable.

With regard to further advantages and advantageous embodiments of the invention, reference is made to the dependent claims and to the description of the exemplary embodiments with reference to the drawings.

Drawings

The invention shall be explained in more detail with reference to the drawings. Elements and components corresponding to each other have the same reference numerals in the drawings. To make the drawings clearer, drawings are not used to scale.

Wherein with a schematic diagram:

FIG. 1 shows a view of a scrub roller according to the present invention;

fig. 2a shows a sectional view of a first embodiment of a cleaning roller according to the invention;

FIG. 2b shows a cross-sectional view of a second embodiment of a scrub roller according to the present invention;

FIG. 2c shows a cross-sectional view of a second embodiment of a scrub roller according to the present invention;

FIG. 2d shows a cross-sectional view of a third embodiment of a scrub roller according to the present invention;

FIG. 2e shows a cross-sectional view of a fourth embodiment of a scrub roller according to the present invention;

FIG. 3a shows a view of a first embodiment variant of a cleaning roller according to the invention before the bristles and the slats are mounted;

fig. 3b shows a view of a second embodiment variant of a cleaning roller according to the invention before the bristles and the strips are mounted.

Detailed Description

In fig. 1, a rotatable cleaning roller 10 is shown in one view and in partial section. The rotatable cleaning roller 10 is accommodated in a sweeping device, not shown, by means of a bearing element 9. To clean the surface, the cleaning roller 10 is set in rotation. The rotatable cleaning roller 10 comprises a first roller portion 7 and a second roller portion 8. The two roller portions 7, 8 extend over the width B of the cleaning roller 10. Mounted on the central shaft 1 are a plurality of bristle strips 5, which are formed by bristle bundles 2 of individual bristles 3. That is, a plurality of bristles 3 together form a bristle bundle 2. Each bristle strip 5 forms a continuous cleaning line. This is achieved by a flexible strip 4 which is arranged directly adjacent to the row of bristle tufts 2 and is mounted on the shaft 1. In addition, a flexible cleaning lip 6 can be mounted between the rows of bristle bundles 2 on the central shaft 1. All bristle strips 4 of the rows of bristle bundles 2, as well as flexible strips 4 and flexible sweeping lips 6, are mounted helically on the shaft and have different inclinations in the two roller sections 7, 8. In other words, in the first roller section 7 and the second roller section 8, the bristle strips 4, the flexible strip 5, the flexible sweeping lip 6 have a twisted shape, similar to a helix with a small pitch, where the inclinations in the first roller section 7 and the second roller section 8 are opposite.

Alternatively, the rotatable cleaning roller 10 can also have only one roller portion.

Alternatively, the bristle bars 4, the flexible strips 5 and the flexible sweeping lips 6 can also be mounted on the central shaft 1 in a manner other than a spiral.

The detailed design of the rotatable cleaning roller 10 is shown in the sectional views of the different embodiments in fig. 2a, 2b and 2 c. In the embodiment variant of the rotatable cleaning roller 10 shown in fig. 2a, the bristles 3 are fixed to the central shaft 1. The bristles 3 each form a bristle bundle 2, which are arranged in a row. A flexible strip 4 is arranged directly adjacent to the row of bristle bundles 2 on one side and is mounted on the central shaft 1, said strip supporting the bristle bundles 2. The flexible strip 4 extends only over a portion of the height of the bristles 3, so that the strip 4 contacts and supports the bristle bundles 2 from one side in the lower region of the bristle bundles. In fig. 2a, only one row of bristle tufts 2 is mounted on the central shaft 1, but it is also possible to mount a plurality of rows of bristle tufts 2 on the central shaft, for example two, three or four rows.

In the embodiment variant of fig. 2b, in contrast to the embodiment variant according to fig. 2a, the rows of bristle bundles 2 are each supported from both sides by a flexible web 4. Here too, the flexible strip 4 extends only over a part of the height of the bristles 3. In the illustration of fig. 2b, only one row of bristle tufts 2 is mounted on the central shaft 1, but it is also possible to mount a plurality of such rows of supported bristle tufts 2 on the central shaft 1.

In the embodiment variant shown in fig. 2c, in addition to the bristle tufts 2, a flexible cleaning lip 6 is also provided, which is also fastened to the central shaft 1. By combining the bristle bundles 2 of bristles 3 with the flexible sweeping lip 6, the cleaning performance of the rotatable cleaning roller 10 can be improved. In the illustration in fig. 2c, two rows of bristle tufts 2 and two flexible cleaning lips 6 are provided, but it is also possible to mount bristle tuft rows and cleaning lips on the central shaft 1 in different numbers.

In the embodiment variant according to fig. 2d, the row of bristle bundles 2 is likewise supported from one side by a flexible web 4. Here, the flexible strip 4 extends only over a part of the height of the bristles 3. In addition to the flexible strip 4 supporting the bristle bundles 2, two further strips are provided, which are likewise oriented radially. All the slats 4 are formed integrally by one element and can therefore be quickly connected to the central shaft 1. In the example above in fig. 2d, the elements of the strip 4 have been glued to the central shaft 1. In the exemplary embodiment shown below, the element with the strip 4 has a key which can engage in a groove X in the central shaft 1. The grooves and the keys are designed to be complementary in this case, so that the element with the strip 4 can be mounted on the central shaft particularly quickly by pushing the element. In the illustration of fig. 2d, only one row of bristle tufts 2 is mounted on the central shaft 1, however, it is also possible to mount a plurality of such rows of supported bristle tufts 2 on the shaft 1.

In the embodiment variant of fig. 2e, a similar element is provided, which comprises a flexible strip 4. While one flexible strip 4 of the element supports the first row of bristle tufts 2 from the right side, the other flexible strip 4 of the element supports the next row of bristle tufts 2 from the left side. If the central shaft 1 is provided, for example, with four rows of bristle tufts 2, four of the illustrated elements with flexible strips 4 can be fastened to the central shaft 1 and can thus support the respective rows of bristle tufts 2 on both sides.

As already explained with reference to fig. 1, the row of bristle bundles 2, the flexible strip 4 and, if appropriate, the flexible sweeping lip 6 can be mounted helically on the shaft. In order to achieve a quick and simple mounting of the flexible strip 4 on the central shaft 1, a groove XXX can be provided which extends over the width B of the cleaning roller 10 and which is likewise arranged helically on the central shaft 1. Such a slot XXX is shown in fig. 3 a. If the flexible strips 4 and, if applicable, the flexible sweeping lips 6 are not to be mounted helically on the shaft 1, but are to have a straight arrangement, the corresponding grooves XXX can likewise be designed straight, as is shown in fig. 3 b. As can be seen from the sectional view of the shaft 1 at position B, four grooves XXX are provided, which are distributed uniformly over the circumference of the central shaft 1. It is therefore also possible to connect four flexible strips 4 or, according to fig. 2d and 2e, an integrated element of four flexible strips 4 to the central shaft 1.

List of reference numerals

1 central axis

2 bundle of bristles

3 bristles

4 flexible strip

5 bristle bar

6 Flexible cleaning lip

7 first roll part

8 second roll portion

9 support element for receiving a cleaning roller in a sweeping device

10 rotatable cleaning roller

Width of B roller

Slots in the X-axis

Slots with XXX extending over the width of the shaft