DE3120741A1 - Sweeping machine - Google Patents

Description

Dipl.-Ing. Otto flügel, Dipl.-Ing. Manfred Säger, patent attorneys. Cosimastr. 81, D-8 Munich 81

Wiedenmann GmbH - 4 - 11.8K

7901 Rammingen Krs. Ulm Fl / st

The invention relates to a sweeper with the features of the preamble of claim U.

A well-known sweeper of this type is with a debris collection container provided with a wide receiving opening facing the space above and downstream of the sweeping brush, since the sweeping brush only sweeps the debris in the area between you and the baffle plate in a dirt conveyor channel leads through their entrainment effect and from there in the direction Collection container is thrown off. There are wind influences in the Able to divert the or parts of the debris from the trajectory and thus impair the collecting effect. Of further is due to the large, inclined collecting container opening the achievable degree of filling of the container is unsatisfactory.

In particular, however, in the case of displacement movements within the operating position, the sweeping brush moves around its Swivel axis result, or with different swiveling divisions the sweeping brush in the operating position in adaptation to the surfaces to be swept, a different spacing between the sweeping brush circumference and the lower edge of the collecting container, so that the suction effect of the rotating sweeping brush is accordingly different. A scraper plate held firmly in place would have to be in the free-wheeling position the sweeping brush can be arranged so that it is in the operating position when the sweeping brush is lowered there is a large gap between the sweeping brush and the squeegee, which leads to particularly dry and so that light debris is carried along by the sweeping brush or its suction effect through this gap and thus not enters the dirt collection container.

Dipl.-Ing. Otto Flügel, Dipl.-Ing. Manlred Säger, patent attorneys, Cosimastr. 81, Ü-8 Munich 81

- 5 Wiedenmann GmbH

The invention is based on the object of a sweeper ' of the type mentioned to create their sweeping properties are better and more consistent.

Based on a sweeper with the features of the generic term of claim 1 is the object according to the invention by training according to the characterizing features of the Claim 1 solved.

When rotating, the cylindrical sweeping brush develops a suction effect on the material picked up by sweeping by entrainment of the peripherally bordering air, which is why this - especially when dry, light - tends to follow the sweeping brush in its circumferential direction. By stripping or debris is trapped above the baffle oer brush and held in the limited in this area of the baffle Kehrgutförderkanal or deflected, by which it is overall j j spun through the accelerating effect of the brush. Since the guide plate is attached according to the invention to the movable part of the sweeping head on which the sweeping brush is also mounted, the small distance provided between the brush surface and the guide plate remains not only in the freewheeling position of the operating position, but also during swiveling movements of the brush, which for example ^{l are} caused by unevenness of the surface to be swept, | or in the case of fine adjustments within the operating position, if j provided, constant. In this way, the sweeping effect is optimally designed.

The structural design of the sweeper according to the invention can be very simple. The baffle can also be the supporting element of the construction of the moving part of the Be sweeping head, in which it is arranged as a cross member between two side cheeks, which can be pivoted on the pivot axis are stored, the bearings for the between them

Dipl.-Ing. OHo Hügel, Dipl.-Ing. Manfred Säger, patent attorneys, Cosimasir. Si, D-X Munich SI j

- 6 - I.

Wiedenmann GmbH

pick up the sweeping brush held and hold the baffle between you.

In a preferred embodiment, the guide plate is provided with a cover plate that extends to the rear of the dirt collecting container extends; this can be provided in a rigid assignment j such that the cover plate is only in the j Operating position of the sweeping brush more or less contact with the lower entrance area of the collecting container and is raised accordingly in the free running position or in such a way that this contact is in all pivoting positions the sweeping brush consists, in particular, that the cover plate - preferably by gravity - with his the edge area facing the collecting container permanently this is applied. For this purpose, the cover plate is connected to the guide plate via a hinge.

In a particularly preferred embodiment, the sweeper is provided with a cover housing that is held fixed to the frame, the connection of the debris conveyor channel to the debris collection container, particularly in the bottom area over the cover plate and preferably also in the side areas so that a good degree of filling can be achieved and wind influences are eliminated. It is preferred also the baffle plate held on the moving part of the sweeping head j at least in the operating position of the sweeping brush with the j Edge area of the upper cover wall of the cover housing connected in such a way that the front one, viewed in the direction of travel: Wall area of the debris conveyor channel continuously | is closed. This can preferably be achieved by j that on the lower, on the movable part of the sweeping head j attached baffle part an upper closing part over a j Hinge is articulated, the. in particular under spring force j on the inner wall of the upper cover wall of the cover housing is kept close. By appropriate

Dipl.-Ing. Olio Huegel, Dipl.-Ing. Manfred Säger, Paloni.iiw.ilu \ ν umiiwkIi. 8l, O-S Miim-ln-it S! !

Wiedenmann GmbH "|

■ I

measurement is achieved 'preferably that this closed state between the lower baffle plate and the upper Cover wall of the cover housing in all possible pivoting positions of the sweeping brush over the closing part of the baffle plate is available.

The sweeping brush of the sweeping machine can be operated in a known manner by its own drive motor, by PTO drive or by j but are carried out by impeller drive. In the last j named case, you get a particularly simple and inexpensive designed embodiment, in which it is possible to use the sweeping brush from a gear connection, which is coaxially connected between the front wheels of the mobile frame rotatably arranged and coaxial to the axis of rotation of the sweeping brush torsionally arranged gears in the operating position of the sweeping brush is to be disengaged when the The sweeping brush is lifted into the freewheeling position. It is the pivoting radius of the movable part of the sweeping head is chosen so that the gear wheel meshes even with pivoting movements of the movable sweeping head part due to uneven floors and / or sweeping brush wear is maintained in the operating position. The is preferred Pivot axis between the movable sweeping head part and its fixed frame part seen in the direction of travel in front of the axis of the arranged front wheels.

The debris collecting container is still a preferred embodiment on the frame-fixed cover housing or frame-fixed supports approximately in the middle with regard to its height dimension rotatably supported, whereby the dirt collecting container by a corresponding pivoting movement in The direction of travel of the sweeping machine can be completely unloaded downwards without being in the unloading pivoting position inclined floor parts remain annoying, which hold the collected debris to be emptied

Dipl.-Ing. Otto Flügel, Dipl.-Ing. Manfred Säger, patent attorneys, Cosimastr. 81. D-8 Munich 81

Wiedenmann GmbH

so that would have to be helped by hand. This makes the sweeper much easier to handle.

Further refinements of the invention emerge from

Subclaims in connection with the in the drawing j

reproduced preferred embodiment, to the i

is specifically referred to and its subsequent Be j

Writing the invention explained in more detail. It show: I.

Figure 1 is a schematic side view of the embodiment with the sweeping brush in the working position;

Figure 2 shows the embodiment of Figure 1 in the free-wheeling position the sweeping brush.

The sweeping machine according to the embodiment has a movable Frame, which is indicated in the drawing only by a front wheel 1 and a rear wheel 2, namely only those on the side facing away from the viewer, while the wheels are on that of the viewer facing side are omitted along with their frame connection. The is fixed on the movable frame Cover housing 3, its side sheet metal part facing the viewer is also omitted.

In the entrance area of the cover housing 3 there is the sweeping head, designated as a whole by 4, which is composed of a frame-fixed part 5 and a movable part 6. The frame-mounted sweeping head part 5 comprises a pivot axis 7, about which the movable sweeper head part 6 relative to the frame-part 5 and thus with respect to the movable frame 1, 2 and the cover housing 3 fixed to the frame bar is pivotable _f. For this purpose, the movable sweeping head part 6 is provided with a manual operating lever 8 which, in the course of a pivoting movement, moves along a side cheek part 9

3J_20_7AT _

Dipl.-Ing. Otto Huegel, Dipl.-Ing. Manfred Säger, Paiennmwnlk ·. Cosimaslr. 81. D-X Mi India S!

Wiedenmann GmbH

of the frame fixed sweeping head part 5 and moved to this in not shown in more detail in different pivoted positions can be locked.

The movable sweeping head part 6 has two lateral cheeks 10, of which only the one arranged facing away from the viewer The cheek is shown and the bearings for the axis 11 of a cylindrical sweeping brush extending between them 12 wear, which in terms of their scope by a dash-dotted line Line is illustrated.

A stripping or baffle plate is attached to the cheeks 10, j which is designated as a whole with 13 and has a cross member 14 which is located between the cheeks 10 above the sweeping brush 12 extends approximately parallel to the sweeping brush axis 11 and thus also to the pivot axis 7 and at a small distance 15 is arranged from the periphery or the jacket surface of the sweeping brush 12.

Between the cheeks 10 of the movable about the pivot axis 7 Sweeping head part 6 is a total of 16 designated impact J Sheet used, which is attached to the movable sweeping head part 6 with regard to its lower baffle) part 17 or! together with the cheeks 10 and the cross member 14 a construction j tion unit forms. The lower baffle part 17 surrounds one; forwards - i.e. to the right in the drawing - part of the outer surface of the sweeping brush 12 and forms with this, following the curvature of the lateral surface, a debris conveying channel 28, through which the sweeping brush picked up and accelerated Debris is directed upwards.

In order to prevent the swiveling of the movable head part 5 Changes in distance between the freewheeling position and the operating position to the cover housing 3 executing components, namely the lower baffle plate 17 and the cross member

l) i |) l.-Ing. Olio wing, DipL-lng. Manfred Säger, patent attorneys. Cosimaslr. Si. D-X Munich 81

- 10 -

Wiedenmann GmbH

14, to be connected to the adjacent walls of the cover housing 3, namely the upper cover wall 18 and the bottom wall 19, in each pivoting position to form a correspondingly closed guide housing, the baffle plate 16 is to be connected with a! upper closing part 20 and the guide plate 13 with a covering \ provided sheet 21st \

The connection between the lower baffle plate 17 and the closing part 20 of the baffle plate 16 is accomplished via a hinge 22, the axis of which is parallel to the pivot axis 7 runs directed. The upper edge of the shooting part 20 is on the inner surface of the upper cover wall 18, under the force of a spring 23 which has one end on one from the closing part 20 forwardly protruding anchor part 24 and the other end at one of the lower baffle part 17 after front protruding anchor plate 25 is held. In this way, the closure part 20 is in contact with the upper cover wall 18 in each pivoting division of the movable reversing head part 6 ensured, so that the cover of the dirt conveyor channel 28 continuously from the lower baffle plate part 17 to the upper one Cover wall 18 of the cover housing 3 is formed.

The cover plate 21 of the guide plate 13 is on the cross member 14

held by means of a hinge, the hinge axis 26 i of which runs parallel to the pivot axis 7. With the hinge ·] Axis 26 facing away from the edge, the cover plate 21 lies on the | Inner surface of the bottom wall 19 of the cover housing 3, and j although under gravity. This support is retained in every pivot position of the movable sweeping head part 6, j whereby the edge of the cover plate 21 slides along the bottom wall when the pivot position is changed, so that also in this area a closed transition from the traverse 14 until the debris collecting container 27 is ensured.

Dipl.-Ing. OUo wing, Dipl.-Ing. Manfred Säger, Patcntiinvvaltc, Cosimaslr. 81, D-8 Munich 81

- 11 -

Wiedenmann GmbH

Figure 1 shows the sweeping machine in the operating position _s, i.e. with the sweeping brush 12 lowered onto the surface to be swept combs, which is arranged coaxially and non-rotatably on the sweeping brush axis 11. Since the gear wheel 29 - shown in dashed lines in terms of its pitch circle has a significantly larger diameter than the pinion 30 shown in dashed lines in terms of its pitch circle, the sweeping brush runs accordingly many times faster than the running wheels 1, from which it is pulled over when the sweeper is in operation a hitch, not shown - is driven by a towing vehicle forwards in the direction to the right in the drawing.

Figure 2 shows the free-running position in which the sweeping brush 12 is raised far from the surface to be swept. The hand control lever 8 is pivoted all the way forward and not on the side cheek part 9 of the sweeping head part 5 fixed to the frame locked in the manner shown. In the freewheeling position, the pinion 30 is out of engagement with the gear 29, lifted because the pivot axis is located in front of the axis 33 of the front wheels 1 in the direction of travel. To this Drive energy is saved in this way.

The comparison of the two figures shows that the cover housing 3 in all pivoted positions of the movable sweeping head part 6 is connected to the dirt conveying channel 28, since the closing part 20 is in contact with the upper cover wall 18 and the Cover plate 21 does not leave its support on the bottom wall 19, but on this when pivoting the movable Only move the sweeping head 6. With that one achieves a big one

Dipl.-Ing. Otto Flügel, Dipl.-Ing. Manfred Säger, patent attorneys, Cosimastr. 81, D-8 Munich 81

- 12 -

Wiedenmann GmbH

Capacity of the dirt collecting container 27 on which the cover housing 3 also participates in this respect.

It is particularly important that the distance 15 between the cross member 14 of the guide plate 13 and the sweeping brush jacket surface is kept small, which is achieved in that the guide plate 13 or its cross member 14 on the movable Larynx part 6 is attached and thus the lowering movement of the Kehrblirste 12 from the freewheel stel ment in the operating position participate. What is important here is the small distance 15 in the operating position or constant in different positions Operating positions, if such in adaptation to different sweeping surfaces by correspondingly different Locking positions of the manual control lever 8 to the left Provide pivoted area, which also takes into account wear in the sense of a diameter reduction the Kehrblirste 12 can be offered. In this case, the traverse 14 is not shown, but easy to solve structurally, for example with elongated screw connections, to the reduction in diameter of the sweeping brush 12 so adaptable that the distance 15 between Traverse 14 and outer surface of the sweeping brush 12 can then also be kept small. As far as the sweeping brush 12 during of the sweeping operation executes pivoting movements about the pivot axis 7 due to uneven ground conditions, remains also the distance 15 constant, so that optimal sweeping results are achieved.

The dirt collecting container 27 is designed as a trap, which assumes the position shown in the figures in the operating state and is thus closed with the cover housing 3 Forms space which also extends beyond the volume of the trap into the area encompassed by the cover housing 3 can be filled in. For the purpose of emptying it is

Dipl-Ing. Otto Flügel, Dipl.-Ing. Manfred Säger, patent attorneys, Cosimastr, 81, D-8 Munich 81

- 13 Wiedenmann GmbH

the dirt collecting container 27 can be pivoted about an axis 31 connected to the frame-mounted cover housing 3, which runs horizontally and perpendicular to the direction of travel and is located in the Smock area of the height dimension of the debris collection container 27 is located on its opening area facing the cover housing 3. Pivoting about the axis 31 leads to that the upper part of the collecting container 27 extends over the cover housing 3 pushes, while the lower part has already swiveled so far on a short distance seen against the direction of travel is that the bottom 32 is in an approximately vertical position, so that the collecting container can be emptied easily.

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Claims (1)

Dipl.-Ing. Otlo Huegel, Dipl.-Ing. Manfred Säger, PalonUinw.ilic. Co \ im »str. 81, D-S Munich SI I Wiedenmann GmbH 11,810 y Rammingen Krs. Ulm Fl / st j sweeper EXPECTATIONS 1. Sweeper with a movable frame on which a baffle plate, a dirt collecting container and between a cylindrical sweeping brush that can be driven in rotation are arranged, the latter including a debris conveying channel with the baffle plate and in one moving part of a sweeping head is held, which is about a frame-fixed pivot axis between an operating position, in which the sweeping brush engages the surface to be swept, and a free-running position in which the Sweeping brush is lifted from this surface, is optionally pivotable, characterized that the debris conveying channel (28) on the side facing the debris collecting container (27) is limited by a scraper or guide plate (13) which is at a small distance (15) from the periphery of the sweeping brush (12) ends and is held on the movable part (6) of the sweeping head (4). 2. Sweeping brush according to claim 1, characterized in that the guide plate (13) with the debris collecting container (27) is in connection (20, 21). 3. Sweeping machine according to claim 1 or 2, characterized characterized in that the debris collection container (27) via a frame-fixed cover housing (3) to the frame-fixed part (5) of the sweeping head (4) Dipl.-Ing. Otto Flügel, Dipl.-Ing. Manfred Säger, patent attorneys, Cosimastr. 81, D-8 Munich 81 Wiedenmann GmbH connected and connected to the baffle plate (16) with regard to the upper cover wall (18), while the bottom wall (19) of the cover (3) is connected to the guide plate (13), the two by one The hinge axis (26) running approximately parallel to the pivot axis (7) is pivotably connected to one another (14, 21), one of which acts as a cover plate (21) displaceably on the bottom wall (19) and the other in the form of a traverse (14) fixedly arranged on the movable part (6) of the sweeping head (4) and that the baffle plate (16) has two hinge (22) directed approximately parallel to the pivot axis (7) has connected components (17, 20), the lower of which as a baffle plate part (17) on the movable part (6) of the Sweeping head (4) is arranged and its upper as a closing part (20) on the upper cover wall (18) of the cover housing (3) attacks covering. Sweeping machine according to one of the preceding claims, characterized in that the pivot axis (7) for the movable part (6) of the sweeping head (4) in the direction of travel in front of the front running axis (33) of the movable frame (1, 2) is arranged. Sweeping machine according to one of the preceding claims, characterized in that the sweeping brush (12) is driven in the operating position by the rotary movement of the front running wheels (1) and is uncoupled from these in the freewheeling position. Sweeping machine according to claim 5, characterized in that that the front wheels (1) Dipl.-Ing. OUo wing, Dipl.-Ing. Manfred Säger, Paienianwiiltc, Cosimastr. 81. D-8 Munich 81 Wiedenmann GmbH and the sweeping brush (12) each have a coaxial toothed wheel (29, 30), which toothed wheels mesh with one another in the operating position and in the free-wheeling position are disengaged. 7. Sweeper according to one of the preceding claims, characterized in that »that the closing part (20) of the baffle plate (16) by a tension spring (23) in contact with the upper cover wall (18) the cover housing (3) is held, 8. Sweeper according to one of the preceding claims, characterized in that the cover plate (21) rests against the bottom wall (19) of the cover housing (3) under gravity. 9. Sweeper according to one of the preceding claims, characterized in that the dirt collecting container (27) on the fixed frame Cover housing (3) is rotatably mounted. 10. Sweeping machine according to claim 9, characterized in that the axis of rotation (31) of the Debris collection container (27) approximately in the central area of the Height dimension of the dirt collecting container (27) is arranged. 11. Sweeper according to one of the preceding claims, characterized in that the guide plate (13) in adaptation to the wear of the Sweeping brush (12) adjustable to the periphery that is then set to be adjusted on the movable part (6) of the Sweeping head (4) is screwed on.