DE102018104744A1 - Sweeper with foot tread area - Google Patents

Abstract

A sweeping machine is proposed which comprises a chassis (12), a rear wheel device (19) which is arranged on the chassis (12), and a push bar (84) which is pivotably arranged on the chassis (12) a foot tread area (70) which is arranged on the chassis (12) in the region of the rear wheel device (19), starting from a on a support (28) properly positioned sweeper by an operator with a kick on the foot tread area (70 ) and pulling on the push bar (84) the sweeping machine as a whole in support with the rear wheel device (19) on the pad (28) from the pad away in a parking position is set up.

Description

The invention relates to a sweeper, comprising a chassis, a rear wheel device, which is arranged on the chassis, and a push bar, which is pivotally mounted on the chassis.

An appropriate sweeper can be pushed by an operator on the push bar on a surface to be cleaned.

In the CN 205249800 U is a lawnmower revealed.

From the WO 2016/165899 A1 For example, a hinge connection is known for connecting at least one elongated object.

From the DE 10 2012 108 651 A1 a vacuum cleaner is known which has a push handle for moving the vacuum cleaner on a floor surface.

From the US 2013/0220067 A1 a device with a push bar is known.

From the US 2011/0302893 A1 is a lawnmower with a push bar known.

From the EP 2 006 184 B1 is a Verstellgriffmechanismus for trolleys, trolleys and the like known.

From the DE 200 07 948 U1 is a rotary joint with locking coupling known.

From the US 6,101,678 is a handle for a moving vehicle known.

From the FR 7633874 a handle is known.

From the GB 853,235 a handle is known.

The invention has for its object to provide a sweeper of the type mentioned, which can be operated by an operator in a simple manner.

This object is achieved in the above-mentioned sweeper according to the invention in that a foot tread area is provided, which is arranged on the chassis in the region of the rear wheel means, starting from a properly placed on a pad sweeper by an operator with a kick on the foot Tread area and pulling on the push handle the sweeping machine as a whole in support with the rear wheel on the surface of the pad away in a parking position can be set up.

An operator can easily stow the sweeper after a sweeping operation. If the sweeper is properly placed on a pad for sweeping operation, then by pulling on the push bar, it can pivot the sweeper as a whole against the pad. This remains supported on the rear wheel. In particular, contact points of the rear wheel device on the base form a virtual pivot axis for this pivoting.

In the parking position, in particular, the sweeper is supported solely on the rear wheel on a base. In sweeping, the sweeper by the rear wheel means and at least one further element such as a roller, a side brush, etc. spaced from the rear wheel means supported on a base.

By placing a foot on the foot tread area, an operator can exert a corresponding counterforce which prevents the sweeper from "driving away". As a result, the swiveling and thus setting up can be carried out in a simple manner.

An operator does not need to grasp dirty areas of the sweeper.

In the erected position, the lateral dimensions of the sweeper are minimized and these can be stored in a simple manner.

On the one hand, a swivel position can be adjusted to a user size in principle for a sweeping operation by means of the pivotable push bar. This makes it possible to carry out an optimized adaptation to a respective operator.

In order to achieve a parking position of the sweeper with minimized lateral dimensions, in particular, the push bar can be pivoted so that it does not protrude from an upper side of the chassis so as to achieve just minimized lateral dimensions. In particular, during the pivoting movement of the sweeping machine as a whole (for a parking position of the sweeper with its chassis) or pivoted after this pivoting movement of the push bar according to a parking position of the push bar.

In a structurally simple embodiment, the foot tread area is formed as a recess on the chassis. The foot tread area can be easily integrated into the chassis. In particular, the indentation makes it possible to provide a limitation for the foot tread area in order to allow easy operation and also to be effective prevent slipping of an attached foot.

In one embodiment, the recess has a longitudinal boundary wall, which is aligned in particular at least approximately parallel to a wheel axle of the rear wheel device. This longitudinal boundary wall defines a depth of the foot tread area and may also serve as an abutment wall.

Further, it is favorable if the indentation has a first transverse boundary wall and a second transverse boundary wall, wherein the second transverse boundary wall is spaced from the first transverse boundary wall and the first transverse boundary wall and the second transverse boundary wall each transverse to the longitudinal boundary wall are oriented. It can prevent a sideways slipping of an attached foot. Furthermore, the foot tread area can also be optically defined in a simple manner. Furthermore, the foot tread area can thereby be easily integrated into an overall sweeper design.

It results in a simple operation when the indentation is open to a rear end of the chassis out and in particular upwards in a height direction of the chassis is open. An operator can thereby easily put his foot on the foot tread area.

It is favorable if the indentation is arranged symmetrically to the rear wheel device. This results in a simple operation. Furthermore, the foot tread area can then be effectively integrated into the overall design of the sweeper.

In one embodiment, the foot tread area has a rib structure. This makes it easy to reduce the risk of slipping a foot operator.

It is particularly advantageous if, relative to a height direction of the chassis, the foot tread area is arranged above a wheel axle of the rear wheel device. The height direction of the chassis is a direction pointing from an underside of the chassis to an upper side of the chassis. The underside of the chassis is the side that faces a base when the sweeper is properly set up for sweeping on the base. The positioning of the foot tread area above the wheel axle results in easy operability for an operator with a simple pivotability of the sweeping machine as a whole on the base.

For the same reason, it is favorable if the foot tread area is arranged below a top side of wheels of the rear wheel device in relation to a height direction of the chassis. The foot tread area can thus be easily integrated into the overall design of the sweeper. This results in a simple pivoting of the sweeper as a whole.

Further, it is favorable if the foot tread area is arranged relative to a longitudinal direction of the chassis between a rear end and a front end of the chassis behind a wheel axle of the rear wheel device. This allows a foot in the foot tread area from a rear side of the sweeper ago. This results in a simple operation.

In particular, in a pivoting of the sweeping machine as a whole on the pad a virtual pivot axis is formed by support points of the rear wheel on the pad. It is thus easy to set up the sweeper by pivoting on the base and bring in a parking position with minimized lateral dimensions.

It is advantageous if the push bar is articulated to the chassis at respective articulation points, which are based on a height direction of the chassis below a highest point of the chassis. As a result, the height dimensions of the sweeper can be kept low especially for packaging. Furthermore, there is good maneuverability for the sweeping operation of the sweeper.

For example, a height in the height direction between the respective articulation points and the highest point of the chassis is in the range between 20% and 40% of a total height of the chassis in the height direction. This results in low height dimensions, in particular for packaging the sweeper. Furthermore, there is good maneuverability for a sweeping operation.

In particular, it is provided that a pivot axis of the push bar is parallel to a wheel axis of the rear wheel device. This results in ease of use a simple structural design.

Conveniently, respective articulation points of the push bar relative to lateral ends of the sweeper are reset in particular in a direction parallel to a pivot axis of the push bar. As a result, small lateral dimensions can be achieved. Furthermore, the push bar can be optimally accommodated for a parking position in particular to achieve minimized lateral dimensions in the parking position for the sweeper.

In one embodiment, articulation points of the push bar to the chassis are each positioned on a recess with a boundary wall, in particular, the boundary wall is at least partially formed by a hopper. An articulation of the push bar can thus be easily integrated into the overall design of the sweeper. It can also be achieved for a packaging of the sweeper low height dimensions of the sweeper.

In one embodiment, the indentation is open towards an upper side and towards an underside, the underside facing away from the upper side, being delimited by a bottom wall, which is oriented transversely to the boundary wall. It can thereby provide a free space (between the top and the bottom wall and laterally bounded by the boundary wall), which can accommodate at least a portion of the push bar for packaging the sweeper. Furthermore, this space can accommodate parts of the push bar in a parking position of the sweeper with a parking position of the push bar.

Conveniently, the boundary wall and / or the bottom wall extend at least approximately parallel to a longitudinal direction of the chassis between a rear end and a front end of the chassis. This results in a simple structural design with optimized inclusion of the push bar.

In one embodiment, the chassis comprises a cover for the rear wheel device, on which in particular the foot tread area is arranged, and which merges into the bottom wall. This makes it easy to integrate the foot tread area into the sweeper. Furthermore, can be trained on a receiving area for the push bar in a parking position and integrate into the overall design of the sweeper.

It can be provided in particular that the bottom wall forms a side member or merges into a side member on which a side brush is particularly height adjustable. This results in a simple integration of a holder of Seitenbesens and also a height adjustment for the side brush in the overall design of the sweeper.

It is advantageous if a handle is arranged on the chassis at a front end of the chassis facing away from the foot tread area. If the sweeper is set up, and thereby supported on the rear wheel device, then the sweeper can be transported upright about this handle.

Conveniently, the sweeper has at least one main sweep roll, which is arranged in particular on the rear wheel device, and has at least one side brush. Sweeping material can be conveyed into a hopper via the main sweeper roller. About the at least one side brush sweeping material of the at least one main sweeping roller can perform. In a manually operated sweeper this is pushed for a sweeping operation on the pad on the push bar and a rotation of the rear wheel means about the wheel axis also drives a rotation of the at least one main sweeping roller. By means of a corresponding torque transmission device, the at least one side brush can also be driven in a rotational movement.

It is particularly advantageous if the push bar has at least one detachable working position, wherein in particular a plurality of working positions are adjustable. In the at least one detachable working position can be pushed by an operator, the sweeper on a pad for sweeping. If a plurality of working positions are adjustable, then an operator can adjust the sweeping arm for sweeping to its size to allow for optimized operation. Due to the detachable working position, it is also possible to bring the push handle in a parking position to allow a space-saving stowage and especially upright stowage (with support on the rear wheel device) of the sweeper.

It is advantageous if a fixing device is provided for the push bar, in which the at least one working position is releasable by train on the push bar relative to the chassis. It can thus be achieved in a simple manner a pivoting of the push bar from a working position to a parking position when or after the sweeper is pivoted as a whole to the pad. First, can be achieved by pulling on the push bar, a pivoting supported on the base. It can be at the same time or by further pulling a fixation of the push bar in its pivot position relative to the chassis solve and the push bar can be, for example, during the pivoting of the sweeper as a whole on the chassis to pivot to a parking position. An operator can thereby achieve the parked parking position for both the sweeper and the parking position for the push bar in a simple manner, without he has to handle dirty areas of the sweeper.

In one embodiment, the push bar is held on a pivot bearing, which comprises a first part, which is non-rotatably mounted on the chassis, and a second part which is non-rotatably mounted on the push bar, wherein a fixing of the first part with the second part to Fixing the at least one working position via at least one pin element is effected, which is spring-loaded by a spring device in a counter element is pressed, and wherein the spring load of the spring device by train on the push bar is such reduced that the fixation between the first part and the second part can be canceled , It can be so easily cancel the fixation between the first part and the second part and the push bar can be pivoted into a parking position. For example, the (at least one) counter element is arranged on the second part and the pin element is arranged on the first part.

In particular, a sliding guide with at least one fixing position for the first part may be provided on the second part for a parking position of the push bar. In particular, the parking position of the push bar can be fixed and fixed in particular non-positively via the slotted guide.

It is favorable if at least one fixing position is a frictional connection position between the first part and the second part. Such a fixation position can be canceled in a simple manner.

For example, a slide track is arranged on the first part and arranged at least one slide on the second part, wherein the slide track has at least one fixing position for the at least one link. It can thus be secured in a simple manner and in particular non-positively a fixing position for the parking position of the push bar on the chassis.

In an alternative embodiment, it is provided that the push bar is fixable in its at least one working position via a clamping knob. A corresponding fixing device can be formed in a structurally simple manner with a minimized number of components.

In particular, then a pivot bearing for the push bar with a first part, which is rotatably mounted on the chassis, and with a second part, which is rotatably mounted on the push bar, is provided, over the tensioning knob, the first part relative to the second part fixable is. By particular manual attack on the clamping knob then an operator can easily fix the pivotability of the push bar on the chassis or solve. In particular, the fixation or release can be realized over a relatively small and also defined rotation range, for example by approximately 180 °.

In one embodiment, the tensioning knob is guided in a thread on the second part. This accesses the second part.

It is particularly advantageous if the second part is assigned a toothing and the first part is associated with a counter toothing, wherein upon engagement of the toothing in the counter toothing rotation of the second part is locked to the first part and upon removal of the toothing of the counter toothing the second part is rotatable to the first part. The toothing counter toothing is for example a Hirth toothing. The tensioning knob is positively connected to the second part, in particular via a thread. As a result, an engagement of the toothing in the counter-toothing or a take-off can be achieved in a simple manner via rotation of the tensioning knob. By engagement of the teeth in the counter-toothing of the clamping knob is fixed with respect to a rotatability with the first part. Since it engages positively on the thread on the second part, can be achieved in a simple manner, a locking of the first part with the second part relative to a relative pivoting.

The counter-toothing can be formed directly on the first part or it is, for example, a toothed wheel rotatably disposed on the first part.

For example, the tensioning knob is arranged and configured with such a configuration that rotation of the tensioning knob by a certain angular range (such as 90 °, 180 ° or 270 °) causes engagement of the teeth with the counter teeth when not engaged, or causing a take-off when they are engaged. In particular, a direction of rotation to effect an engagement is opposite to a direction of rotation to effect a take-off. This results in a simple operation.

It is advantageous if a latching lug is arranged on the clamping knob, which acts on a counter-element of the push bar and prevents lifting of the tensioning knob. As a result, turning out the clamping knob and thus losing the clamping knob can be prevented in a simple manner.

In particular, a parking position of the push bar is provided on the sweeper, in which in particular the push bar does not protrude over a highest height of the chassis relative to a height direction of the chassis. It can thus keep the lateral dimensions of the sweeper in the parking position of the push bar low. The sweeper itself has a parking position in which it is placed and is supported only on the rear wheel on a pad. In the parking position of the push bar this is pivoted to the chassis so that it does not protrude in particular over a maximum height of the chassis.

In particular, the at least one parking position can be detected. It can thereby prevent that in the parking position of the push bar can be solved in a simple manner from the parking position. For example, the parking position is determined by adhesion.

• 1 eine isometrische Darstellung eines Ausführungsbeispiels einer erfindungsgemäßen Kehrmaschine in einer Arbeitsstellung eines Schubbügels, wenn die Kehrmaschine auf einer zu reinigenden Unterlage aufgestellt ist;
• 2 die Kehrmaschine gemäß 1 in einer Parkposition mit einer Parkposition des Schubbügels;
• 3 eine vergrößerte Darstellung des Bereichs A gemäß 1 von einer Rückseite her;
• 4 eine Seitenansicht einer Anlenkung des Schubbügels an ein Fahrgestell im Bereich A gemäß 2;
• 5 eine Schnittansicht längs der Linie 5-5 gemäß 4;
• 6 eine Detaildarstellung im Bereich A für ein weiteres Ausführungsbeispiel einer Anlenkung eines Schubbügels; und
• 7 eine Schnittansicht längs der Linie 7-7 gemäß 6 in Explosionsdarstellung.

The following description of preferred embodiments is used in conjunction with the drawings for further explanation of the invention. Show it:

• 1 an isometric view of an embodiment of a sweeping machine according to the invention in a working position of a push bar, when the sweeper is placed on a surface to be cleaned;
• 2 the sweeper according to 1 in a parking position with a parking position of the push bar;
• 3 an enlarged view of the area A according to 1 from a back side;
• 4 a side view of a linkage of the push bar to a chassis in the area A according to 2 ;
• 5 a sectional view taken along the line 5-5 according to 4 ;
• 6 a detailed representation in the area A for a further embodiment of an articulation of a push bar; and
• 7 a sectional view taken along the line 7-7 according to 6 in exploded view.

An embodiment of a sweeping machine according to the invention, which in the 1 and 2 shown and with 10 includes a chassis (chassis) 12 , This chassis 12 has a back end 14 and a front end 16 , The chassis 12 extends in a longitudinal direction eighteen from the back end 14 to the front end 16 ,

It can be provided in principle that the chassis 12 a base body, such as a frame structure, on which a cladding is arranged.

For example, it is also possible that the chassis 12 is formed so that cladding is integrated into the body. In particular, then the chassis 12 made of a plastic material.

In the context of this application elements which are firmly connected to the body, also as part of the chassis 12 and thus as a chassis 12 considered.

On the chassis 12 is a rear wheel device 19 with a right rear wheel 20 and a left rear wheel 22 arranged. The rear wheel device 19 has a wheel axle 24 around which the right rear wheel 20 and the left rear wheel 22 (synchronously) are rotatable. This wheel axle 24 is perpendicular to the longitudinal axis eighteen oriented.

On the chassis 12 is further spaced from the rear wheel device 19 at least one roller and in particular a steering roller 26 arranged (cf. 2 ).

For a cleaning operation is the sweeper 10 over the rear wheel device 19 with the right rear wheel 20 and the left rear wheel 22 and the castor 26 , which is spaced from the rear wheel device 19 is on a pad 28 supported (cf. 1 ).

On the chassis 12 is a main broom 30 arranged (cf. 2 ). The main sweeping roller 30 is in particular at the rear wheel device 19 positioned that when turning the right rear wheel 20 and the left rear wheel 22 around the wheel axle 24 the main sweeping roller 30 is synchronously rotated. A drive of the rear wheel device 19 then causes a synchronous drive of the main sweeping roller 30 in a rotation about an axis which is coaxial with the wheel axis 24 is.

On the chassis 12 is a detachable dirt container 32 positioned. This is arranged and designed that debris from the main sweeping roller 30 via a corresponding inlet mouth into the dirt hopper 32 can be transported.

In one embodiment, is at the hopper 32 a handle and in particular a bow handle 34 arranged over which the hopper 32 is vulnerable and from the chassis 12 is removable or can be used.

The sweeper 10 has at least one side brush 36 on.

In the embodiment shown according to 1 is a single side brush 36 on a right side of the chassis 12 positioned.

On the chassis 12 is a side element to it 38 arranged or formed, which in the region of the front end 16 an eyelet 40 having. At this eyelet is this side brush 36 mounted in particular height adjustable.

In one embodiment, a knob is 42 provided over the rotational position is adjustable, which height position of the side brush 36 to the chassis 12 Has.

In one embodiment, the side brush comprises 36 a plate brush 44 which are related to an envelope level 46 of bristle tips (cf. 2 ) with proper operation of the sweeper 10 at an acute angle to the surface 28 is oriented.

When operating the sweeper 10 is the side brush 36 in a rotation about an axis of rotation 48 driven. The rotation axis 48 This is especially true when the sweeper 10 properly on a flat surface 28 is placed at an acute angle to this surface 28 just to get an acute angle of the envelope plane 46 to allow the bristle tips.

The side brush 36 serves to sweep from the side of the main sweeping roller 30 feed, then the corresponding debris in the hopper 32 promoted.

The chassis 12 has a cover 50 for the rear wheel device 19 on. This cover has a recess in the area of the rear wheel device 52 , This indentation 52 is symmetrical to the right rear wheel 20 and the left rear wheel 22 arranged. It is in the direction of the longitudinal axis eighteen through a longitudinal boundary wall 54 limited. This longitudinal boundary wall is at least approximately parallel to the wheel axle 24 oriented.

On the side is the indentation 52 through a first transverse boundary wall 56 and by a second transverse boundary wall 58 limited. The first transverse boundary wall 56 and the second transverse boundary wall 58 are in a direction parallel to the wheel axle 24 spaced from each other.

The first transverse boundary wall 56 and the second transverse boundary wall 58 are each transverse to the longitudinal boundary wall 54 aligned and, for example at least approximately perpendicular to the wheel axle 24 aligned or at least approximately parallel to the longitudinal axis eighteen aligned.

The indentation 52 is down through a floor 60 limited, which a rib structure or corrugated structure 62 having.

The indentation 52 is to the back end 14 of the chassis 12 open. It is also up in a height direction 64 the chassis open.

The height direction 64 The chassis is a direction that extends from a bottom 66 to a top 68 of the chassis 12 in a direction perpendicular to the wheel axis 24 and perpendicular to the longitudinal axis eighteen extends.

About the indentation 52 with the ground 60 and the rib structure 62 is a foot tread area 70 formed, on which an operator can set his foot to a swivel of the sweeper 10 opposite the pad 28 to enable the sweeper 10 into a parking position ( 2 ). This will be explained in more detail below.

The foot tread area 70 is related to the height direction 64 of the chassis 12 above the wheel axle 24 arranged.

In one embodiment, the foot tread area is 70 relative to the wheel axle 24 arranged behind this, that is based on a longitudinal axis eighteen from the back end 14 to the front end 16 behind the wheel axle 24 positioned.

Related to a top 72 the right rear wheel 20 or the left rear wheel 22 , is the foot tread area 70 below this top 72 the rear wheel device 19 positioned.

Opposite to the foot tread area 70 is in the area of the front end 16 of the chassis 12 a handle 74 arranged in particular in the form of a bow handle. About this can be the sweeper 10 in particular with the rear wheel device 19 relative to the direction of gravity g below hanging down as it were.

The sweeper 10 has a first indentation 76a and a second opposing indentation 76b on.

These indentations 76a . 76b are each side over a boundary wall 78 limited. This boundary wall 78 is at least partially a wall of the hopper 32 ,

Down (in the height direction 64 to the bottom 66 of the chassis 12 down) are the indentations 76a . 76b each through a bottom wall 80 limited. The bottom wall 80 goes into the page element 38 with the eyelet 40 about. Further, the cover goes 50 over a "slope" 82 in the bottom wall 80 about. Relative to the height direction 64 lies the bottom wall 80 lower than the cover 50 and the slope 82 just mediates the appropriate transition.

The sweeper 10 has a push bar 84 , over which the sweeper works properly 10 on the pad 28 for a sweeping operation (with drive of the main sweeping roller 30 in a rotation about the corresponding axis of rotation coaxial with the wheel axle 24 and rotary drive of the side broom 36 around the axis of rotation 48 ) is slidable.

The push bar 84 is at articulation points 86a . 86b to the chassis 12 hinged pivotally.

On the chassis 12 is in the area of a transition from the slope 62 to the corresponding bottom wall 80 a holder 88 arranged, which is in particular plate-shaped.

At the opposite bay 76b a corresponding holder is arranged.

The push bar 84 is about a pivot bearing 90 to the chassis 12 by means of the holder 88 hinged. A pivot axis 92 for the pivoting of the push bar 84 at the pivot bearing 90 concerning the chassis 12 is parallel to the wheel axle 24 aligned.

The push bar 84 in one embodiment comprises a grip area 94 , which is bow-shaped with a first cross member 96a , a second cross member 96b and a longitudinal element 96c which the two cross elements 96a . 96b connects with each other.

The first cross element 96a is connected to a first tube member (first spar) 98a. The second cross element 96b is with a second tube element (second spar) 98b connected. The first pipe element 98a and the second pipe element 98b are in particular spaced parallel to each other. The first pipe element 98 is about the pivot bearing 90 at the articulation point 86b to the corresponding holder 88 hinged. The second pipe element 98b is at the articulation point 86a to the pivot bearing 90 to the corresponding holder 88 hinged.

The first pipe element 98a and the second pipe element 98b are spaced from the grip area 94 through a crossbar 100 connected with each other.

It is basically possible that the first pipe element 98a and the second pipe element 98b are designed in several parts, for example, to allow a length adjustment or to the push bar 84 composed of appropriate items to allow space-saving accommodation.

The grip area 94 is transverse to the tubular elements 98a . 98b positioned.

For a proper sweeping operation of the sweeper 10 on the pad 28 in which these on the rear wheel device 19 and the steering wheel 26 on the pad 28 is supported to allow sweeping, the push bar indicates 84 at least one job 102 on which a pushing operation for the sweeper 10 by an operator who is behind the sweeper 10 (relative to the rear end 14 of the chassis 12 ) is allowed.

In such a working position 102 (see. 1 ) is the push bar 84 based on the pipe elements 98a . 98b at an acute angle to the longitudinal axis eighteen oriented and the push bar 84 protrudes in the height direction 64 upwards and with the grip area 94 in a projection in the height direction down over the rear end 14 out.

Preferably, several lockable working positions 102 provided so that an operator the position of the push bar 84 and in particular can adapt its pivotal position to the operator size.

The pivot bearing 90 includes a first part 104 (Bearing plate), which rotatably with the chassis 12 connected is. This first part 104 is essentially the holder 88 ,

Furthermore, the pivot bearing comprises 90 a second part 106 (Housing), which rotatably with the push bar 84 connected is.

The second part 106 is at the first part 104 around the pivot axis 92 hinged pivotally.

The sweeper 10 has lateral ends 108a . 108b on. The lateral end 108a is related to the right rear wheel 20 a right side end, and the side end 108b is related to that left rear wheel 22 a left side end. The lateral end 108a . 108b are transversely and, for example, at least approximately perpendicular to the rear end 14 or the front end 16 oriented.

The articulation points 86a . 86b are with respect to the associated lateral ends 108a . 108b due to the indentations 76a respectively 76b reset. The push bar 84 juts out including its articulation points 86a . 86b to the chassis 12 not laterally beyond the chassis.

The articulation points 86a . 86b are also, as already mentioned above, in the height direction 64 reset over the cover 50 at which a highest point of the chassis 12 in the height direction 64 is. The articulation points 86a . 86b are therefore related to the height direction 64 below this highest point.

In particular, there is a height h ₁ between this highest point and a corresponding point of articulation 86a respectively 86b based on an overall height h ₂ of the chassis 12 in the height direction 64 ranging between approximately 20% and 40%. This allows the sweeper on the one hand 10 (with partially dismantled push bar 84 ) in a packaging to save space. Furthermore, there is a good maneuverability of the sweeper in a sweeping operation.

It is a fixing device 110 provided (cf. 3 and 5 ), over which the at least one working position 102 of the push bar 84 can be fixed, that is over which the first part 104 with the second part 106 lockable.

In one embodiment, this is on the second part 106 a housing 112 arranged. In this case 112 is the corresponding pipe element 98a respectively 98b immersed.

The fixing device 110 has a pin element 114 on. On this pin element 114 acts a spring device 116 which comprises one or more compression springs. Without external force, the spring device presses 116 the pin element 114 in one direction 118 , The direction 118 is in particular parallel to a longitudinal direction of the corresponding tubular element 98b respectively 98a ,

At the second part 106 are a plurality of counter elements 120 for the pin element 114 arranged. The counter elements 120 are in particular recesses, in each of which a pin element 114 can dive.

In one embodiment, at least one counter element 120 (And in particular several counter elements 120 ) for locking the at least one working position 102 provided, and it is a counter element 120 ' (see the 3 and 5 ) for a parking position 122 (see. 2 ) of the push bar 84 intended.

In a "normal" position of the push bar 84 the spring device presses the corresponding pin element 114 into the corresponding counter element 120 respectively 120 ' , This is the second part 106 and the first part 104 locked relative to each other and thereby fixed to each other. A pivoting about the pivot axis 92 is locked.

To lift this lock is the push bar 84 in one direction 124 away from the chassis 12 drawn. As a result, the force effect of the spring device 116 lifted, the pin element 114 can dip and it is a pivoting of the push bar 84 around the pivot axis 92 allows.

In one embodiment, to lock a parking position 122 a backdrop tour 126 intended ( 3 and 5 ). The scenery tour 126 includes in particular a slide track 128 , which at the first part 104 is arranged. At the second part 106 is a backdrop 130 arranged.

When the parking position 122 is reached, then the backdrop 130 in a corresponding counter element 132 dip, and the parking position 122 can be locked in place and locked in particular non-positively.

The sweeper 10 works as follows:

For a sweeping operation is the sweeper 10 over the rear wheel device 19 and the steering wheel 26 on a surface to be cleaned 28 propped up.

The push bar 84 will be in a working position 102 brought, in which this over the rear end 14 of the chassis 12 protrudes.

Basically, several working positions 102 be provided and an operator can according to its height suitable for him working position 102 choose.

An operator then pushes the sweeper 10 over the push bar 84 on the pad 28 ,

The pushing movement causes a rotation of the main sweeping roller 30 driven. Furthermore, a rotation of the at least one side brush 36 around the axis of rotation 48 driven.

The at least one side brush 36 carries debris of the main sweeping roller 30 to. The main sweeping roller 30 transports debris into the hopper 32 ,

For stowing the sweeper 10 starting from the working position 102 of the push bar 84 An operator places his foot on the foot tread area 70 , He then pulls on the push bar 84 , It can thereby make the sweeper 10 supported by the rear wheel device 19 with a virtual pivot axis, which by support points of the rear wheel device 19 on the surface 28 is formed from the underlay 28 swing away, with the support via the rear wheel device 19 on the surface 28 preserved.

By pulling on the push bar 84 in that direction 124 can also be the lock between the first part 104 and the second part 106 be solved.

This allows the push bar 84 from his job 102 on the bottom wall 80 to pivot until the (at least one) parking position 122 of the push bar 84 achieved ( 2 ).

By the pivoting of the sweeper 10 as a whole against the pad 28 with the operator foot at the foot tread area 70 got the sweeper 10 set up (cf. 2 ). The push bar 84 was in his parking position 122 brought.

About the slide tour 126 is this parking position 122 of the push bar 84 concerning the chassis 12 fixed. The push bar 84 then does not stick over the top 68 of the chassis 12 out.

The sweeper 10 can be upscale and only on the rear wheel 19 Store supported in a space-saving way.

An operator does not have to go into dirty areas of the sweeper during this process 10 believe it. He can according to the appropriate high-level storage position 2 only by touching the handle area 94 of the push bar 84 and by footing on the foot tread area 70 to reach. By the Fußkraftbeaufschlagung on the foot tread area 70 can be when swinging the sweeper 10 prevent driving away from this.

By pulling on the push bar 84 can the lock on the pivot bearing 90 easily cancel.

This can be used on the one hand, in a simple way a certain working position 102 adapted to the size of the operator.

On the other hand, this can easily the push bar 84 from his job 102 in the parking position 122 to be brought. In particular, this pivoting of the push bar can be 84 from a working position 102 in the parking position 122 in the sweeping process of the sweeper 10 as a whole with support on the rear wheel device 19 integrate. In a sense, only one operation has to be performed, starting from the position of the sweeper 10 according to 1 with support on the surface 28 the position according to 2 to obtain.

About the handle 74 can then set up the sweeper 10 be brought to a final repository.

The sweeper 10 can be operated easily. It can easily achieve a storage position without an operator in dirty areas of the sweeper 10 must intervene.

In an alternative articulation of the push bar 84 to the chassis 12 are spaced holders 134 ( 6 . 7 ) provided to the holders 88 correspond.

The holders 134 form a first part 136 (Bearing plate), which rotatably with the chassis 12 connected is.

The corresponding push bar 84 ' includes a second part 138 (Schubbügelaufnahme), the second part 138 to the first part 136 around a pivot axis 140 is hinged pivotally. It is thereby a pivot bearing 142 educated.

For fixing the first part 136 with the second part 138 is a tensioning knob 144 intended.

This tension knob 144 has a nozzle 146 with a thread 148 on.

At the second part 138 is a mating thread 150 for engagement of the thread 148 of the neck 146 intended. Further, on the second part 138 a gearing 154 arranged.

On the holder 134 is a toothed disc 156 with a counter-toothing 158 for the gearing 154 arranged.

By engagement of the thread 148 in the mating thread 150 can the tensioning knob 144 positively with the second part 138 (which without lock pivoting to the first part 136 is) fix. It can be about rotation of the clamping knob, the teeth 154 in the counter-toothing 158 to press.

If the gearing 154 in the counter-toothing 158 engages, then the pivoting of the second part 138 to the first part 136 around the pivot axis 140 blocked.

The gearing 154 with the counter teeth 158 is designed in particular as Hirth toothing.

By rotation of the clamping knob, for example, by 180 ° can be based on an engagement of the teeth 154 in the counter-toothing 158 solve this interference. By rotation through 180 ° in the opposite direction can be based on a take-off of the teeth 154 in the counter-toothing 158 to reach an intervention.

This makes it easy to get started with the first part 136 at the second part 138 set and thereby allows a pivoting position of the push bar 84 ' on the chassis 12 establish.

In particular, this allows working positions 102 infinitely adjustable.

The adjustment is made by appropriate rotation of the clamping knob 144 to take the teeth 154 in the counter-toothing 158 , The determination is then carried out by rotation in the opposite direction.

With the corresponding design of the articulation can also be based on the working position 102 by loosening the clamping knob the parking position 122 to adjust. This is then by engaging the gearing 154 in the counter-toothing 158 by appropriate rotation of the clamping knob 144 secured.

By footing on the foot tread area 70 can also be in this embodiment, the sweeper 10 as a whole supported by the rear wheel device 19 relative to the pad 28 swing.

At the tension knob 144 is a catch 160 arranged. At the second part 138 is in the range of the thread 148 a counter element 162 for the catch 160 arranged. The catch 160 engages in the counter element 162 such that a turning out of the clamping knob 144 from the mating thread 150 is prevented, that is, that the clamping knob 144 not completely from the second part 138 is solvable.

LIST OF REFERENCE NUMBERS

10

sweeper

12

chassis

14

Rear end

16

Front end

18

longitudinal axis

19

rear facility

20

Right rear wheel

22

Left rear wheel

24

wheel axle

26

castor

28

document

30

Main sweeping roller

32

hopper

34

Handle (hopper)

36

page level

38

page element

40

eyelet

42

knob

44

Circular brush

46

Einhüllendenebene

48

axis of rotation

50

cover

52

indentation

54

Longitudinal boundary wall

56

First transverse boundary wall

58

Second transverse boundary wall

60

ground

62

rib structure

64

height direction

66

bottom

68

top

70

Foot tread area

72

Top (wheel)

74

handle

76a

First indentation

76b

Second indentation

78

boundary wall

80

bottom wall

82

slope

84

push handle

84 '

push handle

86a

articulation

86b

articulation

88

holder

90

pivot bearing

92

swivel axis

94

grip area

96a

First cross element

96b

Second cross element

96c

longitudinal member

98a

First pipe element

98b

Second pipe element

100

crossmember

102

working position

104

First part

106

Second part

108a

Side end

108b

Side end

110

fixing device

112

casing

114

pin element

116

spring means

118

direction

120

counter-element

120 '

counter-element

122

parking position

124

direction

126

link guide

128

link path

130

scenery

132

counter-element

134

holder

136

First part

138

Second part

140

swivel axis

142

pivot bearing

144

Spannknebel

146

Support

148

thread

150

mating thread

152

disk element

154

gearing

156

toothed washer

158

counter teeth

160

locking lug

162

counter-element

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• CN 205249800 U [0003]
• WO 2016/165899 A1 [0004]
• DE 102012108651 A1 [0005]
• US 2013/0220067 A1 [0006]
• US 2011/0302893 A1 [0007]
• EP 2006184 B1 [0008]
• DE 20007948 U1 [0009]
• US 6101678 [0010]
• FR 7633874 [0011]
• GB 853235 [0012]

Claims (35)

A sweeping machine comprising a chassis (12), rear wheel means (19) disposed on the chassis (12), and a push bar (84; 84 ') pivotally mounted on the chassis (12), characterized by a foot -Trittflächenbereich (70), which on the chassis (12) in the region of the rear wheel device (19) is arranged, starting from a on a base (28) properly positioned sweeper by an operator with an impact on the foot tread area (70) and Pulling on the push bar (84; 84 '), the sweeping machine as a whole can be set into a parked position when supported by the rear wheel device (19) on the underlay (28) away from the underlay. Sweeper after Claim 1 , characterized in that the foot tread area (70) is formed as a recess (52) on the chassis (12). Sweeper after Claim 2 , characterized in that the indentation (52) has a longitudinal boundary wall (54), which is aligned in particular at least approximately parallel to a wheel axle (24) of the rear wheel device (19). Sweeper after Claim 3 characterized in that the indentation (52) has a first transverse confining wall (56) and a second transverse confining wall (58), the second transverse confining wall (58) being spaced from the first transverse confining wall (56) and the first transverse boundary wall (56) and the second transverse boundary wall (58) are each oriented transversely to the longitudinal boundary wall (54). Sweeper after Claim 3 or 4 , characterized in that the indentation (52) is open towards a rear end (14) of the chassis (12) and, in particular, is open upwards in a height direction (64) of the chassis (12). Sweeper after one of the Claims 3 to 5 , characterized in that the indentation (52) is arranged symmetrically to the rear wheel device (19). Sweeper according to one of the preceding claims, characterized in that the foot tread area (70) has a rib structure (62). Sweeper according to one of the preceding claims, characterized in that relative to a height direction (64) of the chassis (12) of the foot tread area (70) above a wheel axle (24) of the rear wheel device (19) is arranged. Sweeper according to one of the preceding claims, characterized in that the foot tread area (70) relative to a height direction (64) of the chassis (12) below an upper surface (72) of wheels (20, 22) of the rear wheel device (19) is arranged , Sweeper according to one of the preceding claims, characterized in that the foot tread area (70) relative to a longitudinal direction (18) of the chassis (12) between a rear end (14) and a front end (16) of the chassis (12) behind a wheel axle (24) of the rear wheel device (19) is arranged. Sweeper according to one of the preceding claims, characterized in that upon pivoting of the sweeping machine as a whole to the base (28) a virtual pivot axis by supporting points of the rear wheel device (19) on the base (28) is formed. Sweeping machine according to one of the preceding claims, characterized in that the push bar (84, 84 ') is articulated to the chassis (12) at respective articulation points (86a, 86b) which, relative to a height direction (64) of the chassis (12) below a highest point of the chassis (12) lie. Sweeper after Claim 12 characterized in that a height (h ₁ ) in the height direction (64) between the respective articulation points (86a, 86b) and the highest point in the range between 20% and 40% of a total height (h ₂ ) in the height direction (64) lies. Sweeper according to one of the preceding claims, characterized in that a pivot axis (92; 140) of the push bar (84; 84 ') is parallel to a wheel axle (24) of the rear wheel device (19). Sweeper according to one of the preceding claims, characterized in that respective articulation points (86a, 86b) of the push bar (84; 84 ') relative to lateral ends (108a, 108b) of the sweeper, in particular in a direction parallel to a pivot axis (92; Push bar (84, 84 ') are reset. Sweeper after Claim 15 , characterized in that articulation points (86a, 86b) of the push bar (84, 84 ') on the chassis (12) in each case at a recess (76a, 76b) lie with a boundary wall (78), in particular the boundary wall (78) is at least partially formed by a hopper (32). Sweeper after Claim 16 characterized in that the indentation (76a; 76b) is open towards an upper side (68) and towards a lower side (66), the lower side (66) facing away from the upper side (68), by a bottom wall (80). which is oriented transversely to the boundary wall (78) is limited. Sweeper after Claim 17 characterized in that the boundary wall (78) and / or the bottom wall (80) is at least approximately parallel to a longitudinal direction (18) of the chassis (12) between a rear end (14) and a front end (16) of the chassis (16). 12) extend. Sweeper after Claim 17 or eighteen , characterized in that the chassis (12) comprises a cover (50) for the rear wheel device (19) on which in particular the foot tread area (70) is arranged, and which merges into the bottom wall (80). Sweeper according to one of the preceding claims, characterized in that at a front end (16) of the chassis (12) facing away from the foot tread area (70), a handle (74) on the chassis (12) is arranged. Sweeper according to one of the preceding claims, characterized by at least one main sweeping roller (30), which is arranged in particular on the rear wheel device (19), and characterized by at least one side brush (36). Sweeper according to one of the preceding claims, characterized in that the push bar (84, 84 ') has at least one detachable working position (102), wherein in particular a plurality of working positions (102) are adjustable. Sweeper after Claim 22 characterized by a fixing device (110) for the push bar (84), in which the at least one working position (102) can be released by pulling on the push bar (84) relative to the chassis (12). Sweeper after Claim 23 , characterized in that the push bar (84) is held on a pivot bearing (90), which comprises a first part (104), which is non-rotatably mounted on the chassis (12), and a second part (106) which rotatably is arranged on the push bar (84), wherein a fixing of the first part (104) with the second part (106) for fixing the at least one working position (102) via at least one pin element (114), which is spring loaded by a spring means (116 ), wherein the spring load of the spring device (116) can be reduced by pulling on the push bar (84) such that the fixation between the first part (104) and the second part (106 ) can be canceled. Sweeper after Claim 24 characterized by a link guide (126) with at least one fixing position for the first part (104) on the second part (106) for a parking position (122) of the push bar (84). Sweeper after Claim 25 , characterized in that the at least one fixing position is a frictional position between the first part (104) and the second part (106). Sweeper after Claim 25 or 26 , characterized in that a slide track (128) on the first part (104) is arranged and at least one link (130) on the second part (106) is arranged, wherein the slide track (128) at least one fixing position for the at least one link (130). Sweeper after Claim 22 , characterized in that the push bar (84) in its at least one working position (102) via a clamping knob (144) is fixable. Sweeper after Claim 28 , characterized by a pivot bearing (142) for the push bar (84 ') with a first part (136), which is arranged rotationally fixed to the chassis (12), and with a second part (138), which rotatably on the push bar (84 ), wherein the first part (136) can be fixed relative to the second part (138) via the tensioning knob (144). Sweeper after Claim 29 , characterized in that the tensioning knob (144) is guided in a thread (150) on the second part (138). Sweeper after Claim 29 or 30 , characterized in that the second part (138) is associated with a toothing (154) and the first part (136) is associated with a counter toothing (158), wherein upon engagement of the toothing (154) in the counter toothing (158) a rotation of the second part (138) is locked to the first part (136) and upon the engagement of the toothing (154) of the counter-toothing (158), the second part (138) to the first part (136) is rotatable. Sweeper after Claim 31 characterized by such a design that rotation of the tensioning knob (44) about a certain angle range causes an engagement of the toothing (154) with the counter-toothing (158) when they are not in engagement, or causes a take-off when they are engaged. Sweeper after one of the Claims 23 to 32 , characterized in that on the clamping knob (144) a latching nose is arranged, which acts on a counter element of the push bar (84 ') and prevents a lifting of the tensioning knob (144). Sweeper according to one of the preceding claims, characterized by at least one parking position (122) of the push bar (84; 84 '), in which in particular the push bar (84; 84') does not have a highest height of the chassis (12) with respect to a height direction of the Chassis (12) protrudes. Sweeper after Claim 34 , characterized in that the at least one parking position (122) is detectable.

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