DE2357467A1 - SWEEPER - Google Patents

Description

DIPL.-ING. O. R. KRETZSCHMAR '-a Hamburg ι

iBEIM STROHHAUSE PATENT Attorney RUF Ο411 / 24 67 43

Company K / Stö / Lo - 4450

Jungheinrich.

UnternehmensVerwaltung KG

Hamburg

Legal file: 4450

sweeper

The invention relates to a sweeping machine with a sweeping roller, behind or in front of which a dirt container is arranged is j in the dirt according to the throw-over principle or according to the dustpan principle is promoted '.

In particular, the invention relates to a sweeper with a suction fan and a filter system between the suction fan and the dirt container. at such machines, the roller brush is inside a for Street open rotary brush housing arranged with rubber-elastic floor seals.

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In a special embodiment, the sweeper that self-propelled with wheels, possibly driver's seat and drive motor, is executed, in their vehicle body at least partially over the sides in the area of the dirt container extending vehicle frame.

Such self-contained sweepers have if they work according to the dustpan principle, the dirt container in front of the main brush, which throws the swept up dirt into the facing opening of the dirt container. Other vacuum sweepers, especially in the form of larger vehicles, work according to the throw-over principle. Then there is the Dirt container behind the main brush in the direction of travel, and the collected rubbish is removed from the main brush thrown the main brush housing into the dirt container from above.

The invention relates to both types of sweepers, in particular vacuum sweepers.

In the case of larger known vacuum sweepers, it is necessary to empty the dirt container a hydraulic lifting mechanism is provided. Such lifting mechanisms are on machines that operate according to both sweeping principles work, known.

In the case of small, in particular hand-held machines, the one is designed with a correspondingly small volume Dirt container can be lifted out by hand for emptying. Despite the small volume, the emptying of the Dirt container cumbersome and laborious, in particular when heavy refuse such as cast chips, iron parts or the like is picked up. For medium-sized sweepers is a hydraulic lifting mechanism for emptying the container too expensive. Machines of this size usually have only mechanical drive systems, so that the container can be emptied a special hydraulic system would have to be installed.

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The invention particularly relates to small and Medium sweepers, in particular vacuum sweepers. It is based on the task of improving a sweeper of the type specified at the outset in such a way that the Handling of the dirt container is made much easier without a special lifting mechanism, the relief should consist in the fact that also with heavy refuse Filled containers can be easily emptied as well the installation of the container inside the machine is simple and does not require any special effort. This is especially important when sweepers are used by people without special Physical strength and without assembly skills.

This object is achieved in that the Dirt container in the construction of the sweeper on from the Structure of retractable supports is pivotably mounted. This makes it possible to remove the dirt container on its carrier from the operating position and from the vehicle body, without taking on the load of the dirt container. Due to the pivoting mounting, the Schmützb can be held in front of it or emptied behind the sweeper depending on the arrangement of the dirt container according to the sweeping principle used will. By retracting the carrier, the Dirt container automatically in its required for the operation Position.

It is particularly preferred that in the construction of the sweeper extendable telescopic rails are arranged on which the dirt container is stored. Form the telescopic slides a simple means. This includes that one or multipart telescopic rails are arranged. With special The telescopic rails on load-bearing frame parts are an advantage of the vehicle frame. As a result, special parts do not need to be arranged to guide the telescopic rails be what in terms of the weight of the sweeper and in general the effort is preferred. Using on a Sweeper whose vehicle structure is at least one

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has in sections over the sides in the area of the dirt container extending vehicle ^{frame, the TeIes 1} Kopschienen are advantageously each guided in a frame profile that is open to one end of the vehicle. The frame profile can be designed as a box profile, U-profile, double-T-profile or the like. The guide can take place in a slot in a vertical wall part. However, it is advantageously carried out between the upper and lower transverse surfaces of the frame profile.

It is included that the pull-out telescopic rails with a certain inclination to the standing surface of the vehicle are led. A downward incline in the pull-out direction can be advantageous because the loaded dirt container would be moved obliquely downwards. In this case, special rest or. Slings are arranged to the To keep the dirt container in the pushed-in position. In an advantageous embodiment, the telescopic rails are but guided essentially horizontally.

There is the possibility of using the telescopic rails on their To cover running surfaces with low-friction materials. Preferred but that the telescopic rails each with at least two rollers are equipped, of which the one at the inner end of the telescopic rails these at the top protrude and the spaced rollers protrude under the underside of the telescopic rails. Through this only the rolling friction needs to be overcome. In addition, the specified arrangement of the roles without special A further use of the telescopic splints, discussed below, was opened up. As the locking means mentioned above can be provided on the lower roller tracks of the frame parts locking recesses in which the after Roles protruding from the bottom when the telescopic rails are inserted. Then it is time to pull out the dirt container only necessary, the support arrangement from the parts

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to lift copy rails upwards a little. That's because of that Leverage still easier than lifting the dirt container yourself.

The outer ends of the Telescopic rails are rigidly connected to one another by a cross strut. This creates a fork-like shape with the telescopic rails Created carrier that is particularly easy to handle. The cross strut advantageously serves as a handle.

In a further expedient embodiment, the cross strut is preferably above the plane that is covered by the telescopic rails is formed, provided as a stop for the pivotably mounted dirt container in its emptying position. This makes it easier to handle the dirt container considerable.

Are advantageous arranged on both sides of the dirt container Trunnions in bearing recesses that are open to one another and to the top removable on the inside of the telescopic rails used. This makes it easy for the eventuality Debris has been picked up, possible the dirt container To be poured out by hand directly into garbage cans or the like. The removability of the dirt container has the further advantage that the internal parts of the machine For example, a filter system and the roller brush can be made particularly easily accessible.

In order to take up the rubbish from the rotary brush housing as completely as possible, especially when one is arranged To prevent secondary air from entering, sweepers have a suction fan for opening the retracted dirt container intended sealing or contact edge. When using a suction fan behind a filter system, the rotary brush housing of the dirt container is hermetically sealed

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the filter system is essential. The embodiment according to the invention sees using 'telescopic railed devices for lifting the outer ends of the retracted telescopic rails to press the dirt container edge against the contact edge '. This also includes the mentioned roller arrangement expedient because the upwardly protruding rollers are only provided at the inner end of the telescopic rails, while the after Rollers protruding below can be lifted off their roller conveyors, the roller arrangement anyway being an oversize of the telescopic rails require leading frame profiles in the vertical direction, in which the pivoting of the telescopic rails is possible.

The device advantageously consists of at least one rotatable on the telescopic rails mounted eccentric, which by Rotation with a support section below the plane which is determined by the rollers protruding downward over the telescopic rails is, can be swiveled out. As a result, the movement of the dirt container to the sealing system is easy Funds possible. Two eccentrics with operating levers are advantageously arranged on the telescopic rails. This allows the eccentrics interact directly with the miter or roller tracks for the telescopic rails. It is preferred that the eccentric in the lifting with a support surface, in particular the lower roller tracks of the telescopic rails engaging section have a pitch angle that is within the self-locking. This is at the same time a backup is achieved in the pushed-in position. This security is expediently improved in that the Vertical through the axes of rotation of the eccentrics on their support surface in the direction of the retraction movement of the telescopic rails runs in front of the contact point of the eccentric. In particular the eccentrics are slightly retracted in the area of the on standpoint and in itu? e due to an over-center movement functional position can be brought. When connecting the eccentrics on both telescopic rails, possibly their levers, through

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a cross brace is also a handle for movement created the dirt container.

According to another expedient embodiment, between a cross member is attached to the extendable end of the telescopic rails rotatably mounted and provided with at least one eccentric, to which a support surface is assigned at least in the central area of the vehicle body. .

The invention is illustrated below with the aid of a schematic illustrated embodiment explained, which is shown in the drawing. In this show:

1: a partial side view of a vacuum sweeper with an extended and . swiveled dirt container,

Fig. 2: a partial representation in section lengthways the line II - II. in Fig :. 1,

3: a partial side view of a section of a telescopic rail within it leading frame profiles,

Fig. 4-: a section of a special embodiment along the line IY - IV in Fig. 3 "

The invention is applied to a self-propelled road sweeper explained, which works according to the throw-over principle and the Has dirt container 2 behind the roller brush 3, which is shown in a roller brush housing 4- within an outer casing is led. The vehicle body has one around it running frame 5, which has frame profiles on both sides, one frame profile of which is denoted by 6 in FIG.

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The vehicle has two rear wheels 7, one of which is shown in FIG. 1 only one can be seen, and at the front, for example, only one steerable drive wheel 8. Under the driver's seat 9 are located Drive units, for example also a suction fan 10, which is connected to a filter system arranged at 11 stands. In the lower area of the filter system is one that extends to the rear wall 12 of the rotary brush housing 4 Opening provided with a seamlessly encircling sealing edge 13, which corresponds to the opening edge 14 of the dirt container 2 corresponds.

As shown in dashed lines in Fig. 1, this sealing edge 13 formed from a downwardly open U-profile 46, in which a downwardly exposed seal 47 made of rubber-elastic Material is embedded. The upper edge of the dirt container 2 is pressed against this seal 47. These The edge is made narrow. This has the advantage that both tolerances on the wider seal are taken up can as well as during the emptying process at the edge of the Dirt container 2 can not hold dirt.

The frame profiles 6 are designed as hollow profiles, for example 2 and 4 as inwardly open U-profiles with vertical wall parts 15 and upper and lower transversely extending roller surfaces 16, I7. In these frame profiles, which are open to the rear with respect to the vehicle 1, one-piece telescopic rails 18, 19 are guided, namely one on each side. For example, the telescopic rail 18 is shown in section in FIG. 2, the other telescopic rail in FIG. 4 on the other side of the vehicle, the frame profile being designated by 20 on the other side. In Fig. 1 is for clarification also the section of the telescopic rail 18 remaining in the frame profile 6 in the pulled-out state shown in solid lines. In the telescopic rails, for example, at least two rollers 21, 22 are mounted from those arranged at the inner end roller 21 upwards

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the telescopic rail protrudes, while the further roller 22, which is arranged towards the extendable end, passes through a recess 23 in the lower wall of the box cross-section Telescopic rail protrudes. The axes 24, 25 for the rollers can optionally be guided with the insertion of bearings in the side walls of the telescopic rails 18, 19.

In Fig. 2 it can also be seen that on the inside of the telescopic rails 18, 19 bearing recesses open at the top 26 are arranged. These have advantageous sloping after inlet surfaces 27, 28 converging at the bottom (FIG. 1). On the side walls 29 (Fig. 2) of the dirt container 2 are outwardly protruding pivot pin 30 arranged from above can be used in the bearing recesses. Are beneficial the pivot pins: arranged in the center of gravity of the dirt container 2. This makes emptying easier by pivoting, by the insertion opening 31 down to the roadway is pivoted, as shown in Fig. 1 in full Lines is shown. ■

Fig. 1 also shows the telescopic rails in a so far extended state that the rollers 21, 22 are still arranged within the frame profile 6. This position can go through special latching means be locked, for example by arranging a recess at 32 in the lower roller conveyor 17 is, in which the roller 22 automatically enters.

Both telescopic rails 18, 19 are preferably on their extendable rear end connected by a cross strut 33. This results in a fork-like, inherently more rigid Carrier that can be easily handled, with a parallel guide the telescopic rails is automatically guaranteed, since the cross strut 33 serves as a handle. Advantageous is the cross strut, as shown in Fig. 1, by means of laterally upwardly projecting lugs 34 on the telescopic rails 18, 19 arranged above the plane determined by them. That

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has the advantage that the dirt container finds an end position in the condition shown in FIG. 1 when it is turned for emptying, and that special actuating means can also be arranged below the cross strut 33. When the dirt container 2 is in direction of arrow 35 is pivoted, its limit position is determined by the cross strut 33, with an abutment can be provided by an approach arranged on the dirt container at the appropriate point. The movement can can be facilitated by a handle 36 arranged on a viand of the dirt container.

As a device for pressing the opening edge 14 of the Dirt container 2 to the contact edge 13 are according to Pig. I and 3 on the telescopic rails 18, 19, which are open inward Eccentric 37 ', 37 rotatably mounted about a pivot bearing 38', 38. The eccentrics can be pivoted downward out of the telescopic rails 18, 19. The telescopic rails are open at the bottom in this area, as can be seen in particular from FIG. 3. The profiling is chosen so that thereby the lower rollers 22 and also an additional roller 39 arranged in the vicinity of the outer end of the lower roller conveyor 17 or 40 are lifted off. For example According to Fig. 4, the eccentric 37 is provided with an actuating lever Mistake. There is the possibility that both eccentrics with such actuating levers 41, 4l 'on both sides of the machine operated separately. It is preferred that the eccentrics, in particular the levers, are connected to one another by a cross strut 42 are connected, which allows both a simultaneous common movement of the eccentrics on both sides as well as a handle is used when the dirt container is to be pulled out. In this case, with reference to FIG. 3, the rear The end of the retracted telescopic rail 19 shows the lever 4l being pivoted clockwise, i.e. the handle forming cross brace 42 would at the same time be pivoted backwards out of the vehicle body, in which it would otherwise be in a recess is embedded or held between the lugs 34.

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The cross strut 33 between the two telescopic rails 18 is arranged so high that the actuating lever -4.1, 4V or the cross brace 42 connecting this under the cross brace 33 can be pivoted.

The eccentrics advantageously have the one with the lower roller conveyor 40 engaging portion 43 has a pitch angle which is within the self-locking. It exists the possibility of roughening the engaging section 43 as well. However, an automatic one is particularly preferred Securing the inserted dirt container 2 that the contact point 44 against a vertical through the axis of the pivot bearing 38 is offset, in the extension direction. The amount of offset is 45 in FIG. 3 designated. In Fig. 3, a further advantageous embodiment is indicated in that the eccentric in the area of Point of uprising is designed in such a way by a confiscation, that the drawn in Fig. 3. Position through an over-center movement is achieved. In this case it is necessary that the elastic seal on the contact edge 13 is compressible to that extent is that the increase resulting from the over-center movement, which is followed by a certain decrease, was added without breaking the seal.

The pendulum suspension of the dirt container 2 can its opening edge 14, which is formed by a narrow edge is to press evenly over its circumference against the seal 47.

As can be seen in Fig. 4, is on the inside of the vertical Wall part 49 of the frame profile 20 at least one off Plastic existing slider 48 is arranged, which is used for lateral guidance serves the telescopic rails and on the outside of the Telescopic rails 18, 19 is arranged.

In Fig. 2, such a slider is only shown in dashed lines indicated.

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Claims (1)

DIPL-ING. OR KRETZSCHMAR ₂ “amburg ι AT STROHHAUSE PATENT ADVERTISEMENT RU F O411 / 24 67 43 Company K / Stö / Lo - 4 * 150 Jung-Heinrich corporate vern'altung KG Hamburg Lawyer file: Claims / 1J Sweeper with a roller brush, behind or in front of the a protective container is arranged, in which the dirt according to the throw-over principle or according to the dustpan principle is conveyed, characterized in that the dirt container (2) in the construction of the sweeper (1) on carriers (18, 19) that can be pulled out of the body pivoted iet. 2. Kehrna3chine according to claim 1, characterized in that in the structure of the sweeper (1) extendable telescopic rails (18, 19) are arranged, on which the Schir.utzbehälters (2) is mounted. 3. Sweeping machine according to claim 2, characterized in that that the telescopic rails (18, 19) are guided on supporting frame parts (5, 6, 20) of the vehicle frame. 509822/0072 4-, sweeper according to claim 3, "in which the vehicle body a pich at least in sections about the Pages in the area of the dirt container extending Vehicle frame, characterized in that the telescopic rails (18, 19) «each in a Rahraenprofil (5, 6, 20), which is open to one end of the vehicle, are guided. 5. Sweeper according to claim 2 and 3 »characterized in that that the telescopic rails (18, 19) essentially are guided horizontally. 6. Sweeper according to claim 3 or 4, characterized in that that the telescopic rails (18, 19) each with at least two rollers (21, 22) are equipped by which the (21) at the inner end of the telescopic rails protrude beyond them at the top and which are at a distance from them arranged rollers (22, 39) protrude under the underside of the telescopic rails. 7. Sweeping machine according to claim 6, characterized in that roller conveyors (17 »40) for a protruding below Roller (22, 39) are provided with locking depressions at the point into which this roller is pivoted State. 8. Sweeper according to one of claims 2 to 6, characterized characterized in that the outer ends of the telescopic rails (18, 19) st ^ rr by a cross strut (33) are connected to each other 9. Sweeper according to claim 8, characterized in that the cross strut (33) as a handle for the telescopic extendable, fork-like carrier of the dirt container (2) is provided. ■ " 50 9 82 2 / .0 07 2 ■■■ · ■ * ■■ '^{; r} " ^V - ^: ■■" - ■■ 10. Sweeping machine according to one of claims 8 and 9, characterized characterized in that the cross strut is preferably above the Level formed by the telescopic rails (18, 19) is, as a stop for the pivoted dirt container is provided in its emptying position. 11. Sweeping machine according to claim 1, characterized in that that on both sides of the Schniutzbehältsr (2) arranged "pivot pin (30) in bearing recesses (26) open to one another and upwardly on the inner sides of the telescopic rails (13, 19) are inserted removable. 12. Sweeping machine according to one of claims 1 to 11, with a contact edge provided for the opening de3 retracted dirt container, characterized in that devices (37, Ί1, Ί2) are provided for lifting the outer ends of the retracted telescopic rails (18, 19), to press the opening edge (I ² I) of the dirt container (2) against the contact edge (13). 13 Sweeping machine according to claim 12, characterized in that that the device consists of at least one eccentric (37) rotatably mounted on the telescopic rails, which by rotation with a support section (^ 3) below the plane which is determined by the rollers (22, 39) protruding downward over the telescopic rails (18, 19), can be swiveled out iat. 11. Sweeping machine according to claim 13 »characterized in that that two eccentrics (37) with operating levers (41) to the Telescopic rails (18, 19) are arranged. 509822/0072 15 · Sweeping machine according to claim 3 and 14, characterized in that that the eccentric (37) in the with when lifting a support surface, in particular the lower Hollen tracks (1A-, 17) of the telescopic rails (18, 19) coming into engagement Section (4-3) have a pitch angle that lies within the self-locking. 16. Sweeping machine according to one of claims 13 to 15, characterized characterized in that the perpendicular through the axes of rotation (3S-) the eccentric (37) on its support surface (17, 40) in Direction of the retraction movement of the telescopic rail (18, 19) the eccentric (37) runs in front of the contact point (44). 17 · Sweeping machine according to claim 16, characterized in that the eccentrics (37) - ^ area of the contact point (44) are slightly drawn in and by over-center excitation can be brought into their puncture position. 18. Sweeper according to one of claims 14 to 17 »thereby characterized in that the eccentrics (37) on both telescopic rails (18, 19) »optionally the levers (4-1) for Rotation of the eccentric, connected to each other by a cross strut (42), which also have a handle for Forms settlement of the dirt container (2). 19- sweeper according to one of claims 14, 16 and 17 » characterized in that between the retractable At the end of the telescopic rails (18, 19) a cross member is rotatably mounted and provided with at least one eccentric is, the one support surface at least in the middle area is assigned to the vehicle body. 509822/00 7 2 20. Sweeping machine according to one of claims 12 to 19 »thereby characterized that on the sweeper in itself known Sometimes a suction fan (10) and a filter system (11) are provided between this and the Gchrautabehillter (2) is, at the lower edge of the abutment edge (13) as a Dichtkäiite with a seamless circumferential seal is executed. 21. Sweeping machine according to claim 20, characterized in that that the upper edge of the dirt container (2) is designed as a narrow edge which can be pressed against the wider seal is. 22. Sweeping machine according to claim 4, characterized in that the frame profile (6, 20) is designed with upper and lower transverse rolling surfaces (16, 17, ¹ IO) for the telescopic rails (18, 19) and on vertical wall parts (15, Ί6) of the rack profiles, preferably on the outer sides of the telescopic rails (18, 19) made of plastic sliding pieces (* I8) for lateral guidance of the telescopic rails are arranged. 509822/0072 BAD OniüiMAL