DE2055841A1 - Sweeper, especially hand sweeper - Google Patents

Description

2U55841

Applicant D 4C13 Hermann Ilaaa «. November 3, 1970

7 Stuttgart-Obertürkheir-i

In rir.kelr.cl:t;r Z

Represent

Patent attorney Dipl.-Ing. H, permanent

7021 Musberg Karl »tr. 40

Kehrmaschina ι in particular »landkehriiiuschine

The invention relates to a sweeping machine, in particular a hand-held sweeping machine, with at least one about an approximately vertical one Rotary axis rotatable and driven side brush when moving, the one with bristles or the like. occupied base body consists.

209321/0356

ORIGINAL INSPECTED

In order to get dirt out of corners and edges, it is known to additionally attach a side brush to the side of a hand-held sweeper in the area of its front edge, which usually consists of a disk-shaped base body with approximately axially arranged bristles made of plastic or the like. consists. The side brush can be rotated around a slightly inclined, almost vertical axis, so that the dirt it grabs is swept towards the center of the hand-held sweeper. In the known types e the drive of the side brush via a drive belt of the impeller of the roller brush of the sweeping machine from · Most is arranged on the outside to a drive wheel of the sweeping roller, a pulley, <* 'on a leading to the provided also with a pulley side broom drive belt placed · The side brush can usually be placed on a 4-way side of the sweeping machine if both drive wheels of the sweeping rollers are equipped with belt pulleys, for which the sweeping machine must also have brackets for the side brush on both sides. On the one hand, this type of side brush drive requires considerable technical and structural effort,

209821 / 03S6

2Ü55841

while on the other hand the machine is widened so that when a side brush is not in use, the main brush only can be led past a wall at a greater distance.

The invention is based on the object of designing a sweeper of the type mentioned in such a way that a structurally simply constructed drive is created for a side brush, which does not require any widening of the sweeper. the Invention consists in that the side brush or the like with bristles arranged in a ring. is equipped, the one on Surrounding the floor running roller, which is designed as a drive roller for the side brush and mechanically connected to this is. This creates a very simple drive in which the transmission of the rotary movement of the drive roller on the side brush by a force-fit or positive mechanical connection can be made. It is advantageous that the role within the side broom is arranged so that it always runs on the already swept floor.

32 1 / 03S6

205584

In a further embodiment of the invention it is provided that the roller is mounted pivotably about a vertical axis, which preferably extends outside its axis of rotation. This has the advantage that as a drive roller The role designed for the side brush also serves as a swivel castor for the sweeper. This can apply to everyone There is no need for an additional swivel castor for sweeping machines. To the mechanical with this pivotable arrangement of the roller transmission between the roller and the side brush is not to be interrupted, the side brush is over together with the roller a common vertical axis pivotably arranged. This ensures that when pivoting the Roll around the vertical axis does not affect the relative distance between the roll and the side brush.

For the fattening of the bearing parts, it is advantageous if the direction of travel of the roller runs radially to the vertical axis. In an advantageous embodiment of the invention, this is achieved in a simple manner in that the roller is inclined in such a way that its contact line or contact point on the floor is approximately vertically below the axis of rotation of the side broom.

In an advantageous embodiment of the invention, "· seen that the side brush is mounted displaceably in the axial direction »This enables the side» broom automatically readjusts when its bristles or the like are worn, so that they are always on the surface to be swept on ·· lie*

In a further embodiment of the invention it is provided that the roller is provided with a toothing on one side, which engages in a toothing of the main body of the side brush. In a structurally favorable embodiment of the invention, the base body of the side broom has one A hub running on a bolt, which serves as a toothing and has evenly spaced axial slots, which are preferably open at the bottom · In this embodiment of the invention, the roller is arranged concentrically with axially directed pins which engage in the slots of the hub of the base body of the side broom · This design is In a structurally simple Veise a form-fitting transmission of the rotation between the roller and the side brush received, which also has the

2Ü9821 / f) 3Se

2U55841

Has the advantage that the side brush can move axially without breaking the connection.

In a structurally advantageous manner, the base body is designed as a downwardly open plastic shell, on the edge of which the bristles ο the like. are attached * It is advantageous if the side walls of the plastic shell and the bristles o _e like. against the axis of rotation are inclined at about 45 "

In a structurally advantageous embodiment of the invention, a plastic pin serves as the vertical axis, which acts as a fastening pin for attachment to the housing or the frame of the machine is trained. It is structurally advantageous if, in this embodiment of the invention, a washer is attached to the lower end of the plastic pin, in which the bolt for the hub of the side brush is attached from below · Since the hub of the base body of the side brush is also made of plastic, no special lubrication measures are required for the Obtaining good running properties required · In order to easily perform the role in this embodiment of the invention store, the lower end of the bolt has an inclined

209821/0366

Bore, in which the axis of the roller is eingesetsst "In this embodiment, the direction of rotation of the side brush is dependent on the installation position of the roller _t that is, whether the roller in sweeping direction is disposed to the right or left of the bolt, it is expedient if the bearing bolt is attached to the disc in a predetermined installation position. In order to be able to easily replace or remove the side brush in this embodiment of the invention, it is advantageous if the bolt is clipped into the pane.

A structurally favorable Ausführungsfora of the invention sees suggest that the axle of the roller inserted into the bore of the bolt is made of plastic and is provided on the outside with a stop collar for the roller. This also gives you here an extremely simple design for which no maintenance or Lubrication is necessary «Among other things, the friction between the roller and to raise the floor, which can be useful especially when using a heavy side broom, will be discussed later Embodiment of the invention provides that the roller, which is preferably made of plastic, has a tread with a raised surface Reinert owns.

209821/0356

In the drawing the invention is in one embodiment example shown

Fig.l shows a vertical section through an embodiment of the invention and

FIG. 2 shows a section along the line II-II of FIG

In Fig.l the front edge 1 of a hand sweeper is indicated with dashed lines. In the area of its side wall, a side brush 2 is attached in the frame or directly in the side wall, which has its own drive and which is also designed as a swivel castor for the hand sweeper. The side brush 2 comprises a formed as a plastic shell main body 3 are attached "to its in approximately 45 inclined side walls in the same direction extending bristles, which may be plastic or natural bristles ₀ of the base body 3 is provided with a hub 5 formed on a plastic bolt 6 is rotatably arranged, which has a slightly rearward inclination to the vertical. By

9821/0 3 56

205584

this tendency is achieved that the bristles 4 only approximately in Area of the front edge 1 of the sweeper rest on the floor 7, so that a directed towards the center of the sweeper Sweeping is made possible. The hub 5 of the base body 3 is provided with axial slots 8, which in uniform Are spaced around the circumference and are open at the bottom «

The slots 8 serve as a toothing for pins 9 engaging in them, for example metal pins, which are on a common Diameter used in a distance corresponding to the slots 8 in a roller 10 running on the floor 7 are »The plastic roller 10 is arranged on an inclined axis 11 in such a way that it is approximately vertical runs underneath the bolt 6 on the floor 7 Flattening 12. The axis 11 is inserted into an inclined hole in the bolt 6 and has at its outer end a stop collar 14, which secures the roller 10 «Vie from Fig.2

- 10 -

205584

can also be seen, the inclined running surface of the roller IO is provided with a tread 15, for example consists of rubber and has an increased coefficient of friction.

Since the direction of rotation of the side broom 2 depends on which side of the bolt 6, in the machine's direction of rotation seen, the roller 10 is arranged, it is useful if the installation position of the bolt 6 is fixed in such a way that the position the roll 10 is always on the right side. The roller 10 should always be open when viewed from the center of the sweeper the outside of the bolt 6, since the side brush then runs so that it removes the dirt towards the center of the sweeper sweeps, which then picks up this dirt with its roller brush

The bolt 6 is provided in its upper end with an axial slot l6 and two radial lugs 17 so that he can be clipped into a disk 18 If the bolt and the bore of the disk 18 are provided with a profile deviating from a circle, for example two lateral flattened areas, the installation position of the

- 11-

209871/0366

of the bolt 6 and thus the position of the roller 10 are fixed. The disc 18 is arranged at the lower end of a plastic pin 19, which serves as a fastening pin for the entire Seitenbesenanordnting and which is inserted into a corresponding bore of the sweeper. The roller 10 and the side broom 2 are pivotably arranged about the pin 19 forming a vertical axis, so that the roller D can be used as a pivotable steering roller and has a caster due to the arrangement of the pin 6 and the pin 19. Since the roller 10 performs the function of a steering roller, can be dispensed with an additional steering roller "There are, however, appropriate two of the described arrangements in the region of the two side edges of the sweeper, wherein first the side brush 2 is omitted, so that the H ^at ^ ^cenrma machine It is equipped with two front swivel castors. If a side broom 2 is to be attached, it is sufficient to loosen the connection between the bolt 6 and the washer 18, to place the side broom 2 on the bolt 6, with the open slots 8 at the bottom the hub 5 engage in the pins 9 of the roller 10, and then again the bolt 6 in the

- 12 -

209871 / nose

Clip in disk 18. Of course, it is easily possible to provide a side brush 2 on both sides, what as additional effort only requires the actual side broom 2, since the other drive elements are already present.

It is also possible to clip the axle 11 and also the pin 19 into the parts holding them in a similar way to the bolt 6, whereby the assembly can be further simplified.

In another embodiment of the invention, not shown, the bolt 6 is formed in one piece with the plate 18 and the pin 19. The axis 11 is provided with an approximately triangular approach, one of the flattening 12 has corresponding edge. A pin-like part protrudes from this approach and is pushed through the hollow bolt 6 and held in the area of the plate with a clip fastener. The bore of the bolt 6 is given a profiled cross section corresponding to the cross section of the pin-like attachment, so that in this embodiment too the position of the axis 11 and thus that of the roller is fixed.

- 13 -

9 871/0356

Claims (1)

Patent and protection claims .J Sweeper «in particular hand sweeper * with at least one rotatable about an approximately vertical axis of rotation and at Method-driven side brush, which consists of a bristle or the like. occupied base body, characterized in that that the side brush (2) with bristles arranged in a ring (4) or the like. is equipped, the one running on the floor (7) Surrounding roller (10), which is designed as a drive roller for the side brush and is mechanically connected to it 2. Sweeping machine according to claim 1, characterized in that the roller (10) is mounted pivotably about a vertical axis (19), which is preferably outside its axis of rotation (H) runs. 3 »Sweeper according to claim 2, characterized in that the side brush (2) together with the roller (10) is arranged to be pivotable about a common vertical axis (19) « - 14 - 209821/0356 2Ü5584 ¹ 4. Sweeping machine according to one or more of claims 1 to 3, characterized in that the direction of travel of the roller (10) is radial to the vertical axis (19). 5. Sweeper according to claim 4, characterized in that the roller (10) is mounted inclined in such a way that its contact line or its contact point on the floor (7) is approximately vertical lies under the axis of rotation (6) of the side brush (2) 6. Sweeper according to one or more of claims 1 to 5 » characterized in that the side brush (2) is mounted so that it can be moved in the axial direction. " 7 sweeper according to one or more of claims 1 to 6, characterized in that the roller (10) is provided on one side with a toothing (9) which is in a toothing (8) of the base body (3) of the side broom (2) engages. 8, sweeper according to claim 7, characterized in that the main body (3) of the side brush (2) one on a bolt (6) - 15 - 209821/0356 has a running hub (5) which serves as a toothing and has axial slots (9) that are evenly spaced, which are preferably open at the bottom «, 9 · Sweeper according to claim 7 and 8, characterized in that that the roller (10) is provided with concentrically arranged, axially directed pins (9) which are inserted into the slots (8) of the Engage the hub {5) of the main body (3) of the side brush (2). ΙΟ. Sweeping machine according to one or more of claims 1 to 9, characterized in that the base body (3) as down open plastic shell is formed, on the edge of which bristles (4) ο «like. are appropriate 11 Sweeping machine according to Claim 10, characterized in that that the side walls of the plastic shell and the bristles (4) ο.dgl «are inclined to the axis of rotation by about 45, 12. A machine according to one or more of claims 1 to 11, characterized in that the vertical axis of a plastic - 16 - 209821/0356 pin (19) serves as a mounting pin for attachment is formed on the housing or the frame of the machine (1). 13. Sweeping machine according to claim 12, characterized in that that at the lower end of the plastic pin (19) a disc (18), which is provided with a downward sloping bolt (6) for the hub (5) of the side brush (2). 14. Sweeper according to claim 13 «characterized in that that the bolt is hollow and a pin-like part is inserted into it, which is formed in one piece with the axis (11) is. 15. Sweeping machine according to claim 12, characterized in that that at the lower end of the plastic pin (19) a disc (18) is attached, in which the bolt (6) for the hub (5) of the side broom (2) is attached from below. - 17 - ORIGINAL INSPECTED 2Q9821 / 0358 2ÜS58A ' ¹ 16, sweeper according to claim I5, characterized in that that the lower end of the bolt (6) has an inclined bore (I3) into which the axis (11) of the roller is inserted is. 17 · Sweeping machine according to Claims 13 to 16, characterized in that the bolt (6) is in a predetermined installation position is attached to the disc (18) 18. Sweeping machine according to claim 16 or I7, characterized in that that the bolt * (6) is clipped into the washer (l8), 19 · Sweeper according to claim 14 or 16, characterized in that that the axis (11) of the roller (10) inserted into the bore (I3) of the bolt (6) is made of plastic and on the outside is provided with a stop collar (14) for the role. 20 «Sweeper according to one or more of Claims 1 to 19« characterized in that the roller (10), which is preferably made of plastic, has a tread (I5) with an increased coefficient of friction owns. 0 9 821/0356 ι Le e rs e ι te