DE2006748A1 - Mobile vacuum sweeper - Google Patents

Description

Mobile vacuum sweeper

The invention relates to a mobile vacuum sweeper Drive units, blowers, sweepers and a dirt box, which is suspended in swiveling! embossers on the chassis and for emptying by means of at least one hydraulic Cylinder piston device is Irerschwenkbar and has a connection opening to a rotary brush housing.

In the normal operating position, the dirt box is in the lower position in an arrangement that the connection opening is aligned with a connecting duct to the rotary brush housing or overlaps it at the edges »

In known designs, the sweeping box is for example arranged on the front of the chassis and designed as a unit with a housing part with the filters. Included the dirt box, which is rigidly arranged on the pivot arm, is pivoted so that the connection opening is downward is directed and the collected dirt is practically immediate is ejected from the front edges. That Vehicle must then continue from this cluster. It is then necessary to remove the dirt in a conventional Way by hand for loading.

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Another disadvantage is that each filter assembly must be raised with. This requires flexible connection lines, which are stressed in this case will. It must be taken into account that the suction line of the lebläses, which is attached to the filter, must be well sealed must, so that it is problematic to provide a detachable connection at this point as in the area of the connection opening.

Further, it is known, the dirt box of a machine Kleinkehrma- V in the rear part to arrange and store Ik pivotable together with the side walls of the vehicle body of the vehicle body. It is true that a special flap, which is normally arranged on the top of the dirt box, can be opened to pour out the dirt behind the vehicle. In this embodiment, however, this opening is still in the area of the height of the vehicle body. Furthermore, a great deal of effort arises from the fact that the vehicle body is also swiveled in part. Furthermore, there are problems that the connection opening is moved when pivoting in the direction of the Kehrwalζengehäuee, so that special measures are necessary for a seal, because the connection opening in the connection channel would have to be moved at least briefly parallel to the opening surface. In addition, in this embodiment the W dirt box is swiveled overhead, which is not possible for a vacuum sweeper because of the filters to be arranged above the dirt box.

In vacuum sweepers, it is because of the upper filter arrangement Up to now it has not been possible to lift the dirt box over the vehicle and through "into" the connection opening to drain.

The invention is based on the object of a mobile vacuum sweeper to the effect that an emptying of the

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Dirt boxes possible from a height above the vehicle body is, without the dirt being caused by special movements of the Dirt box is whirled up, with the dirt in a container standing next to the vacuum sweeper or another Vehicle can be emptied from above, but it is also reserved that the dirt is already thrown backwards when the dirt box is only slightly above its operating position is raised.

This object is achieved in that on upper part of the chassis structure two rearwardly directed support arms are provided on which the swivel bracket are stored, and that the dirt box located on the rear of the vehicle is guided in such a way that it can be pivoted to a limited extent during lifting by the pivot bracket and a linkage arrangement is that the dirt box floor remains on the underside and when moving from the lower layer to the upper one Position above the vehicle at an angle to the rear and down is directed *.

This solution is an overhead pivoting of the Dirt box avoided, so that once the dirt in the Dirt box is not circulated and whirled up and, on the other hand, the filter arrangement could remain in its position.

It is preferred that the pivot bracket at in lower Position located dirt box are directed essentially vertically downwards, so that - because they are also on attack the lower part of the dirt box - the dirt box is raised to a considerable height. Preferred is according to a particularly advantageous embodiment that the sweeping box is arranged below a between the support arms Housing part provided with the filter arrangement and independent of this permanently installed housing part via this is pivotable. As a result, the housing part can with the filter assembly remain stationary, and the dirt box

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is moved backwards under this housing part and then brought over the housing part, but with the dispensing opening inside remains on a level behind the vehicle.

The arrangement of the dirt box at the rear end of the vehicle has significant advantages because there are no protruding ^x

■ Agljregate such as arranged on the front of the side brush are so that the vehicle maneuvers to a container

' ^r can be poured into the dirt directly from the dirt box from above.

Suitably, the upper hand of the dirt box rises obliquely to the ^ vehicle toward the upward direction and is carried out in conformity to the bottom ™ of downwardly open housing part with the filters' with portions of the connection opening are laterally removable to the broom housing at ι lifting the dirt box and be pivoted upwards at an angle when lifting, so that no dirt can escape from this opening. Since, of course, the connection opening - regardless of whether the dirt box is located at the front or rear of the vehicle - is directed towards the center of the vehicle, where the rotary brush housing is located, the solution according to the invention also creates a greater distance from the vehicle structure for the output of the dirt than. would be possible when emptying through the connection opening.

L · Preference is given to such an inclination of the upper edge of the dirt box in connection with the guide during lifting that the upper edge is arranged essentially horizontally in the highest position of the dirt box above the housing part with the filter arrangement. This is to prevent dirt from being discharged from this opening within the upper edge of the dirt box.

The linkage arrangement expediently has three levers which are connected to one another by a common joint and of which a first with its other end at a distance from the '. Pivot bearings for the swivel arms on the chassis, a second in the lower one

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Area of the rear edge of the dirt box and a third with its other end "articulated" attached to the swivel bracket wherein the third lever puts the common hinge in one position leads, in which the first and second levers are essentially stretched towards one another. By means of these levers, a Pührungsgestänge is created that a precise intended Alignment of the dirt box in every position Raising determined.

A particularly important and advantageous feature is that that the rear wall of the dirt box is designed as a flap, which is at a distance from the upper edge of the dirt box and from the formed by the rear wall- ' th surface pivotably mounted and with its lower part by a detachable locking device for closing the dirt box is lockable. As a result, the dirt is discharged at the opening opposite the connection opening, where it is practically poured over the sloping downward soil.

They are useful on the flap *, namely on one of the wall angled upper section provided laterally outwardly directed pins, which recesses in the side wall parts are assigned, in which the pins are inserted when the flap is closed, with latching means coming into engagement. It surrenders Due to the type of linkage, not only a torque on the flap in the sense of closing when it is in the lower position Container, but a reciprocal guidance between the pins and the recesses in such a way that the closing movement is inevitably controlled and fixed.

It is preferred that on the pivot bracket locking lever are provided, which are arranged obliquely with lever arms on the pivot brackets that they are to the enclosure the pin extend in the recesses and lock the flap in its closed position in a pressing manner, whereby they press the pins into the recesses to close the flap. It goes without saying that the lever arms are expedient

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"during the initial movement of the Sdiwenkträger from the area of the Move out the focus.

According to an expedient in its simplicity and operational reliability Embodiment, the locking device is designed as a hook on the wall designed as a flap, which a "limited Pivotability and a run-up surface directed towards the front wall of the dirt box with the connection opening with which it slides over retaining pins when the dirt box is lowered.

The second linkage lever is advantageously articulated to the retaining pin at the same time.

The invention also relates to a mechanical actuator, in particular a Bowden cable for opening the hasty means, in particular latching hooks in the upper position of the Dirt box. Bas is favorable to only open the dirt box for emptying when it is in its upper position is.

It is preferred that the Bowden cable along levers of the Swivel linkage is guided to an eccentric, which is rotatably mounted about a pivot pin of a lever to optionally to lift the hurry hook. The management of the Bowden cable on such levers has the advantage that each one the same length is available.

The invention is explained below using an exemplary embodiment described, which is shown in the drawing. In the drawing show:

Jig. 1: a schematic side view of a vacuum sweeper;

Tig. 2 t is a partial side view of the Pig machine. 1, with the dirt box in its

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lower position and dashed in its upper emptying position is shown;

Fig. 3: a view of the dirt box and? ■ ■ its suspension from behind in partial representation;

Fig. 4: a side view of Fig. 3

The vacuum sweeper according to Fig. 1 has a vehicle body 1, at the front part of which a driver's seat 2 is arranged, in front of which there is a desk 3 with the steering. At the front end a steering and drive wheel 4 is provided. At the far end two wheels 5 are arranged on the sides of the vehicle. before this is the rotary brush housing inside the vehicle body 6 arranged with the transversely extending sweeping roller 7 driven in the direction of the arrow, which in lateral, on pilot wheels 8 supported arms 9 can be stored. The rotary brush housing 6 ends with a channel 10 at a connection opening 11 to the dirt box 12. This can be in the Dirt box provided connection openingVand parts 13, 14 ·, 15 protrude, which are arranged as an extension of the channel 10 are.

In the front part there is the steering and drive wheel 4, a side brush 17 on a carrier 16.

On the chassis frame are directed obliquely backwards and upwards Support arms 18 arranged. Each of these support arms is on Side one is provided, and pivot brackets are attached to these support arms 19, which are articulated at their other end at 20 to the dirt box 12. There is also a linkage arrangement provided, which consists of a first lever 21, a second lever 22 and a third lever 23. All three levers are 24-connected at one end by a common hinge. The first lever 21, which is in the operating position Dirt box directed essentially vertically

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the other end is at 25 on the chassis frame "or articulated to the support arm 18. The second lever 22 is with its free end at 26 on the lower part of the dirt box 12 in hinged near the rear wall. The third lever 23 is old attached to the pivot bracket 19 at its other end at 27. This arrangement is the same on both sides. The schematically indicated swivel joints 28 of the swivel supports 19 are connected to a drive which is shown in FIG. 2 as a cable pull * f? is carried out, which is on a drum of the joint is wound so that when pulling the cable 34, the pivot arms 19 are moved away from the chassis.

This can be seen particularly clearly from FIG. The pivot joint 28 has a circular circumference 59 around which a chain 60 is moved which is connected to a head 61 of a piston rod 62, the piston of which is in an actuating cylinder 63 is reciprocable. This embodiment has the advantage that the head piece 61 in the extended Position with an abutment on the disk-shaped pivot joint 28 comes into engagement and this in its lower Position can press. This is essential because in this context the cylinder piston device 62, 63 is not only Tensile forces, but also applies compressive forces during operation to secure the pivoted position. It goes without saying that the cylinder 63 in FIG. 4 corresponds to the cylinder 29 in FIG. The cylinder can be hydraulic or pneumatic be operated. It is important that the piston rod 30 (Fig. 1) or 62 (Fig. 4) has a head piece with an abutment of the pivot joint can come into engagement in order to close the pivot bracket in the position shown in FIG lock in which the connection opening of the dirt chain 12 is with the channel 10 in an overlapping system and overlap. Other locking means such as For example, mechanical locks or the like can be provided on the side walls of the dirt box between these and the chassis frame are arranged.

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It can also be seen that the dirt box 12 is inclined tape line that rises upwards to the rear and above the connection opening 11 starts. The above 'the dirt box 12 is located Housing part 31 between the pivot supports 19 and the support arms 18 accommodates the filter arrangement. The fan can otherwise be fixed in the vehicle body. The housing part 31 with the filters is open at the bottom and the dirt box upwards, so that these parts are connected to one another in the region of the edges along line 32. It will noted that the ends of the pivot bracket 19 with the at 20 provided pivot bearings are bent so that the pivot bearing 20 in the operating position shown from the vertical Projection of the pivot bearing 28 towards the vehicle body 1 are offset. What is achieved here is that the dirt box 12 initially moves upward in the region of the hand 32 bent slightly to the side * and down and sideways to the rear is withdrawn, so that overlapping interventions can be provided. This is considered to be important in order to achieve a dust-tight assembly with simple means.

In the other figures, the same parts are denoted by the same reference numerals. The dirt box 12 is initially in the lower position behind a chassis frame part 33 is shown. It is noted that the rear wall 35 is designed as a flap. The flap has the top on both of its side edges Flat extension pieces 64 in which pivot pins 72, 73 are arranged, which are mounted in the side walls of the dirt box 12 are. These pivot pins 72, 73 are thus at a distance from the top edge 40 of the dirt box and the rear ¥ andteil, which is formed by the flap © 35, arranged. This articulation creates a particularly favorable leverage effect achieved to move the flap under its own weight in the most favorable position.

It is also noted that on the lower part of the designed as a flap Rear wall 35 latching hooks 37 are provided, which engage in the closed position via pins, and indeed advantageously a pivot pin provided at 26 for the second lever 22.

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When pivoting the pivot bracket 19 according to Flg. 2 in a clockwise direction, "the Set el assembly 21 His 23, that the waste box is moving in the hot 12 ¹ shown position. The bottom surface 38 is then directed obliquely rear bottom. Not shown in detail for an opening of the hook 37> example, by a Bowden cable or a handle arranged on the hook lifts the rear wall 35 designed as a flap around the joint 36 from the dirt box 12 so that the dirt is ejected. It can be seen that the upper edge 4-0 in the upper position at 40 ' is arranged substantially horizontally.

It can also be seen that the rear wall 35 designed as a flap iifi the upper part of the extension pieces 64 extends to the outside directed journal 36 at a distance from the plane of the flap formed wall 35 and near the top Ribbon 41 of extension pieces 64 - outwardly directed pins 36 hat (Tig. 3) · For these tenons are in the side walls 65, of the dirt box recesses are provided, of which in the Figures 2 and 4 which are located on one side with 67 are designated. The recess 67 is, as shown particularly in FIG is apparent, with respect to the rear wall 35 formed by the closed flap directed obliquely upward and forward, and they receives the pin 36 when the door is closed.

Because the pins 36 enter the recesses 67, it is achieved that the rear wall designed as a flap is in the lower position of the dirt box 12 with this applies a certain torque. That is enough to move the run-up surface 42 of the hooks 37 on the pin at 26 upwards, so that it engages automatically.

On the pivot supports 19, 58 are also essentially Z-shaped locking arms 56, 57 are arranged. These only have, which is important for the present invention their upper rope levers 68, 69. These levers are, as from

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FIG. 4 emerges, directed in such a way that it engages the pin 36 in the Lock recess 67 under pressure on the bottom of the recess. When the dirt box is pivoted, the initial movement of the pivot bracket 19, 58 turns the lever 68, 69 already twisted so that the upper opening of the recess 67 is released, so that when the pin 36 can emerge from the recess. In the opposite sense, will the dirt box when pivoting in due to the action of the levers 68, 69 on the pins 36 in the recesses 67 forcibly locked under pressure. .

It is also found that the third lever 23 is bent is in order to avoid that he go during the pivoting movement via the articulation of the support arm 19 provided at 20 Jiiuss. in the rest of the third lever 23 is dimensioned so that the first and second lever 21, 22 in the upper position of the dirt box are essentially elongated. As will be shown the first lever 21 is bent or bent to the side in order to be able to pass the pivot bearing 28.

From Figure Λ it can be seen that along the two levers 21, 22, which of course always have the same length in common Bowden cable 70 is guided, which is connected to a pivot pin arranged at 26 with an eccentric 71, the ' can reach under the hook 37. An actuation of the eccentric therefore leads to the hook 37 being lifted out of engagement with it the pin at 26 to allow for arbitrary locking.

The Fig, 2 shows that the dirt box 12 well over the vehicle can be lifted and that the dirt after Slide down the opening of the rear wall 35 designed as a flap can.

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Figures 3 and 4 show that the pivot bracket 19 and the & rod arrangement from levers 21, 22, 23 on "both sides are provided. They are on the left in Fig. 3. denoted by 58, 43, 44, 45 ". The pivot joint 28 is a corresponding one Swivel joint 46 assigned on the other side. The pivot supports 18, 47 can also be seen.

Me swivel arms 19, 58 are non-rotatably arranged on bushes 48, 49, on which an actuating disc 50, 51 is provided is on the one hand the cable, a chain 60 and / or the locking arrangement in the form of the cylinder piston © attack direction 29, 50, 62, 63.

It can be seen from Fig. 4 that it is designed as a rear wall Flap 35 is pressed at the lower part against a sealing arrangement $ 2, which is held on the bottom 38. Farther Fig. 4 clearly shows the ramp surface 42 of the hook 37, the is held in a support bearing 53 on the outside of the side wall and comes into engagement with the pin 26. The hook is in the area of its pivot pin 54 in relation to a Shelf 55 shaped so that it is not in a deeper Position than the one shown.

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Claims (1)

DIPL.-ING. O. R. KRETZSCHMAR. 2 HAMBURG 1 AT THE STRAW HOUSE PATENT ADVERTISEMENT call 24 67 43 H. Jungheinrich & Co.. ^the «February 1970 Machine factory K / H / Tr Hamburg ■ .-. """'.- ■ Attorney's file: 3604 -. ■. ■ Claims; / 1.) Drivable vacuum sweeper with drive units, blower, Sweepers and a dirt box, which is suspended in swiveling supports on the chassis and for emptying is pivotable by means of at least one hydraulic cylinder piston device and a connection opening to has a rotary brush housing, characterized in that on the upper part of the chassis structure two to the rear directional support arms. (18, 4-7) are provided on which the Pivot support (19 »58) are mounted, and that the dirt box (12) located on the Eahrzeugheek is supported by the pivot support (19, 58) and a rod arrangement (21-23 »4-3-4-5) is guided in such a way that the dirt box bottom remains on the underside and when moving from the lower position to the upper position above the vehicle at an angle to the rear directed downwards. 2 * vacuum sweeper according to claim 1, characterized in that the pivot supports (19, 58) in the lower position in the are directed essentially vertically downwards. 3. Vacuum sweeper according to claim 2, characterized in that the ends of the pivot bracket (19) with the pivot bearing provided at (20) are curved so that the pivot - ■■■. '. ■ - 1 - 109836 / QQ9S ACCOUNTS OKESONER BANK, ACCOUNT NO. ti «» · P OlTB C H E C K HAMBUKO NK. 1 * 3766 bearing (20) in the operating position shown from the? vertical projection of the swivel bearing (28) atm vehicle body (1) are offset. 4. Vacuum sweeper after. Claim 1, characterized in that that the sweeping box (12) below one between the ü? rag- the housing part (31) arranged in the form of arms (18, 47) ter arrangement provided and built-in independently of this Housing part is pivotable about this. 5. vacuum sweeper according to claim 4, characterized in that that the upper band (32, 40) of the dirt box (12) inclined et rises towards the vehicle and conforms to the lower band of the downwardly open housing part (31) is carried out the filters and that the parts of the connection opening to the main brush housing (6) when lifting the Dirt box (12) can be pulled off laterally and pivoted upwards at an angle when lifting. 6. vacuum sweeper according to claim 5, characterized by a such inclination of the upper edge (40) of the dirt box (12) in connection sit the guide when lifting that the upper band (40) in the highest position of the protective case (12) is arranged essentially horizontally above the housing part (31) with the conductor arrangement. 7. vacuum sweeper according to one of claims 1 to 4, characterized characterized in that the linkage arrangement has three levers (21-23, 43-4 ^) which are connected to one another by a common joint (24) are connected and of which a first (21) with its other end old distance from the pivot bearing (28) of the Swivel arms (19) on the chassis, a second (22) generally lower area of the rear belt of the dirt box (12) and a third (23) old at the other end of the swivel bracket (19) is articulated, the third lever leading the common joint (24) into a position in which the first and second levers extended substantially towards one another are. 109836/0095 ■■■■■■■ -. ^: ' ^: -er 8. vacuum sweeper according to one of claims 1 Ms 7, characterized characterized in that the rearward facing Vand (35) of the dirt box (12) is designed as a flap with Distance from the top band of the dirt box (12) and from the surface formed by the wall (35) is mounted pivotably and with its lower part by a detachable Haste device (37 »42) for closing the dirt box is more locked. 9. vacuum sweeper according to claim 8, characterized in that that on the flap, namely on one of the wall (35) angled upper section (14) sideways outwards directed pins (36) are provided, which rush in lateral tfahdt. Recesses (6?) Are assigned in which insert the pegs when the flap is closed, with hasty means coming into engagement. 10. vacuum sweeper according to claim 9, characterized in that on the pivot bracket (19, 58) locking lever (56, 57) are provided with lever arms (68, 69) so inclined are arranged on the pivot brackets that they are to Surrounding the pegs (36) extend in the recesses (67) and the flap (35) in its closed Lock the position while pressing the pin (36) press into the recesses to close the flap. 11. vacuum sweeper according to claim 10, characterized in that that the lever arms (68, 69) during the initial movement the pivot bracket (19 «58) from the area of the recess move out. 12. Vacuum sweeper according to claim 8, characterized in that that the bast device is designed as a hook (37) on the wall (35) designed as a flap Dirt box with the connecting opening directed ramp surface (42) with which it slides over retaining pins (26) when the dirt box is lowered. 13 Vacuum sweeper according to Claim 8, characterized in that that the second linkage lever (22) is articulated at the same time on the retaining pin (26). 14 · Sweeper according to one of Claims 8 to 13, characterized in that a mechanical actuating device, in particular a Bowden cable (70) for opening the east means, in particular latching hooks (37) in the upper position of the dirt box is provided. 15. Vacuum sweeper according to claim 14, characterized in that that "the Bowden cable (70) is guided along the lever (21, 22) to an eccentric (71) which is around a pivot pin (26) of the lever (22) is mounted in order to selectively lift out the Easthaken (37). 109836/009? Blank page