EP3043689A1

EP3043689A1 - Floor cleaning machine

Info

Publication number: EP3043689A1
Application number: EP13765679.9A
Authority: EP
Inventors: Steffen Layer; Frank Nonnenmann; Bernhard Maurer; Jochen BURCHARD
Original assignee: Alfred Kaercher SE and Co KG
Current assignee: Alfred Kaercher SE and Co KG
Priority date: 2013-09-13
Filing date: 2013-09-13
Publication date: 2016-07-20
Anticipated expiration: 2033-09-13
Also published as: CN105530849A; US20160192816A1; WO2015036031A1; RU2619028C1; EP3043689B1; CN105530849B; DK3043689T3

Abstract

Proposed is a floor cleaning machine (10) which comprises a handle unit (36) for operating the floor cleaning machine (10) and a dead man's switch (40) that has an actuation unit (66), said actuation unit (66) being retained on said handle unit (36) via a first region (68), the actuation unit (66) having a second region (72) which is pivotable relative to the first region (68), and the second region (72) being retained on the first region (68) as a single piece via a hinge device (74), and a pivot position of the second region (72) relative to the first region (68) determining whether the dead man's switch (40) is operating or not operating.

Description

Floor cleaning machine

The invention relates to a floor cleaning machine comprising a handle unit for operating the floor cleaning machine and a dead man's switching device with an actuating unit.

A dead man's switch is used to set a machine in a non-operating state (for example, a non-running state) when the corresponding operating unit is not actively operated. An operation of the corresponding floor cleaning machine is then only possible if an active operation takes place with the operating unit.

US Pat. No. 6,389,630 B1 discloses a handle for an electric floor cleaning machine, which comprises a centrally mounted actuator with a safety lock.

From US 5,768,735 a rotary floor cleaning machine is known. From US 5,261,140 a floor cleaning machine is known, which has an on / off switch, by which a motor can only be switched on, if another switch is not in a safety position.

From US 4,542,551 a floor cleaning machine is known, which has a safety switch to prevent inadvertent operation of the machine.

From US 4,174,473 a safety switch for a tillage machine is known.

The invention has for its object to provide a floor cleaning machine of the type mentioned, in which the dead man's switching device can be operated in a simple manner and designed in a simple manner in terms of production technology.

This object is achieved according to the invention in the above-mentioned floor cleaning machine in that the actuating unit is held on the handle unit via a first area, that the actuating unit has a second area, which is pivotable to the first area, and that the second area in one piece via a hinge device is held at the first region, wherein a pivotal position of the second region to the first region determines whether the dead man's switching device is switching or non-switching.

The operating unit is held on the handle unit, so that when holding the handle unit by an operator in a simple manner, the operating unit to the switching position of the dead man's switching device can be activated.

The operation unit includes the first area, the second area, and the hinge means between the first area and the second area. Such an actuating unit can be formed in one piece in particular, wherein a pivoting of the second area to the first

Region is realized via the hinge device in the manner of one or more film hinges. The operating unit can thereby be formed in a simple manner and easily mounted on the handle unit.

A switching position of the dead man's switching device is a position, in particular, of the actuating unit relative to the handle unit, in which the dead man's switching device provides a release signal for the operation of the floor cleaning machine or certain components of the floor cleaning machine. In a non-switching position, the deadman switch does not give an enable signal for the corresponding operation. The signals of the dead man's switching device are received, for example, from a control device of the floor cleaning machine, which in turn drives one or more drives and other components of the floor cleaning machine.

In particular, the actuating unit is provided on the first region and / or on the second region with reinforcing ribs and free of ribs on the hinge device. By the reinforcing ribs, a high mechanical rigidity is achieved at the first region and at the second region. In the case of a reinforcing rib-free embodiment on the hinge device, the hinge device is in the process of being realized with a pivotability of the second region relative to the first region.

In one embodiment, the handle assembly has an envelope plane at a top and a pivot axis of the hinge means for pivoting the second region toward the first region is oriented in parallel and at a small acute angle of at most 30 ° to the envelope plane. This results in a simple operability of the handle unit with the operating unit of the dead man's switching device.

In one embodiment, the handle assembly has a top and an opposite bottom, the bottom one

Machine body faces and the actuator unit is arranged at the bottom. This results in an ergonomically advantageous embodiment of the handle unit with the arranged actuating unit. For example, if the handle unit is designed as a bow-shaped handle, an operator can encompass it and also encompass the actuating unit. By pressing the operating unit to the handle unit, a switching position of the dead man's switching device can be achieved.

It is favorable if the actuating unit is assigned a return spring device, wherein a spring force of the return spring device has to be overcome for a switching position of the actuating unit. It is thereby an active operation necessary to bring the dead man's switching device in a switching position (that is, in a release position). It is in principle possible that the hinge device is designed as a return spring means. Alternatively or additionally, one or more further return spring elements may be provided. It is advantageous if the return spring means on the

Actuator is arranged and in particular is integrally connected thereto. This results in a simple structural design and the number of components can be minimized. In one embodiment, the return spring means is disposed at least partially spaced from the hinge means. As a result, an effective restoring force can be achieved in a simple manner.

It is favorable if the hinge device comprises a first hinge and (at least) one spaced-apart second hinge. As a result, a symmetrical structure can be realized in a simple manner with an optimized power dissipation. For example, then the spaced hinges can be arranged so that between them, for example, a steering column or a receptacle of the handle unit for the steering column can be performed.

For the same reason, it is favorable if the first hinge is assigned a spaced-apart first restoring spring and the second hinge is assigned a spaced-apart second restoring spring, wherein the first restoring spring and the second restoring spring are spaced apart from one another. It can thereby achieve a symmetrical structure with optimized power consumption.

In particular, the actuating unit is designed as a bracket. This results in an easy operation for an operator.

It is particularly advantageous if the actuating unit is formed in one piece. The first region and the second region are integrally connected to one another via the hinge device. Spring elements of a return Spring device can be integrally positioned on the actuator unit, for example via injection molding.

It is favorable when the dead man's switching device is or is switching against the handle unit when the actuating unit is pressed, that is to say it delivers a release signal when the actuating unit is pressed against the handle unit. This results in an ergonomically advantageous operability. In particular, an encoder sensor device is provided, by means of which a switching position of the actuating unit can be detected. As a result, a corresponding switching position or release position of the actuating unit can be detected in a simple manner. For example, the encoder is a passive element and the sensor is an active element. For example, the sensor may provide a release signal to a controller of the floor cleaning machine when the actuator unit is in a switching position.

It is advantageous if a passive encoder of the sensor-sensor device is arranged on the second area. As a result, the actuating unit can be formed in a simple manner, for example, also in one piece.

It is favorable for the same reason, if a sensor of the encoder sensor device is arranged on the handle unit. Usually, further operating elements are arranged on the handle unit, to which corresponding electrical lines are guided.

In one embodiment, the encoder is or includes a pin and the sensor is a contact switch cooperating with the pin. It may then, when a certain position of the actuating unit is reached to the handle unit, the pin mechanically act on the contact switch and a corresponding switching signal or release signal is provided by the contact switch. Also other trainings of the giver and the Sensors, for example with a non-contact encoder-sensor interaction are possible.

In one embodiment, the actuating unit comprises a spoke device and / or the handle unit has a spoke device, wherein in particular a sensor-sensor device is arranged on the one or more spoke devices. This results in a simple operability of the handle unit with the operating unit. This can be encompassed, for example, from above or from the side with both hands. The spoke device can be used to arrange further operating elements and in particular also the encoder sensor device. Further, a recording, for example, to a steering column can be formed on the spoke device. In particular, only a single sensor and only a single sensor is provided for the sensor-sensor device. The arrangement of the spoke device results in at least approximately

symmetrical arrangement, so not a plurality of encoders and

Sensors is necessary.

It is favorable if the handle unit and / or the actuating unit are designed mirror-symmetrically to their spoke device. This results in a high ease of use for an operator of the floor cleaning machine.

It is advantageous if the handle unit one or more controls for the floor cleaning machine are arranged, such as controls or main switch.

For operability, it is advantageous if the handle unit is designed as a bow handle and / or the operating unit as a bow handle. An operator may then include the strap handle. With the gripping, he can also press the actuator against the handle unit, so as to effect an active circuit of the dead man's switching device. It is advantageous if the handle unit and the actuating unit are formed so that when encompassing the bow handle of the handle unit, the bow handle of the operating unit is mitumfassbar. In one embodiment, the handle unit has a closed loop handle, which delimits at least one inner opening and in particular delimits a first inner opening and a second inner opening, wherein in particular a spoke device is arranged between the first inner opening and the second inner opening. Such a handle unit has a high ease of use. The handle unit can be used as a steering wheel.

It is advantageous if the actuating unit has a first inner opening and a second inner opening, which are adapted to the first inner opening and the second inner opening of the handle unit. As a result, the operating unit can be easily integrated into the handle unit with high ease of use.

In one embodiment, the second region of the actuating unit has a first stop surface and the handle unit has a corresponding second stop surface, wherein upon contact of the first stop surface with the second stop surface further movement of the second region is locked to the handle unit. As a result, an excellent position for the dead man's switching device, namely the switching position, can be defined in a simple manner by corresponding mechanical contact of the second region with the handle unit.

It is favorable if the handle unit has a guide for the second area of the actuating unit. This provides for a defined mobility of the actuating unit to the handle unit. The guide can be formed so that there is permanently a kind of overlap between the actuator and the handle unit. Through this overlap Gaps between the actuator and the handle assembly are minimized and thus the risk of jamming for an operator is minimized.

In one embodiment, the handle unit has a recess, in particular in the form of a groove, and the second area of the actuating unit has an immersion element, in particular in the form of a dip strip for the recess. As a result, a guide of the actuating unit on the handle unit can be achieved in a simple manner.

It is particularly advantageous if one end of the second region, which faces the handle unit, is not at any position of the actuating unit spaced from the handle unit. This avoids a gap between the operating unit and the handle unit, so that the risk of jamming for an operator is reduced.

In one embodiment, the handle unit is arranged on a steering column and is designed in particular as a steering wheel.

The floor cleaning machine is for example a scrubber or sweeper.

In particular, the floor cleaning machine is designed as a self-propelled floor cleaning machine. If the dead man's switching device is not switching, in particular a feed of the floor cleaning machine is not activated, for example via a machining tool or a traction drive.

In one embodiment, the floor cleaning machine is designed as a Nachläufermaschine. An operator walks behind the floor cleaning machine, passing the floor cleaning machine over the handle unit. The following description of preferred embodiments is used in conjunction with the drawings for further explanation of the invention. FIG. 1 shows a schematic representation of an embodiment of a

Floor cleaning machine;

Figure 2 is a plan view in the direction A of Figure 1 on a

Handle unit of the floor cleaning machine according to Figure 1;

Figure 3 is a sectional view taken along line 3-3 of Figure 2;

Figure 4 is a sectional view taken along line 4-4 of Figure 2; Figure 5 is a sectional view taken along line 5-5 of Figure 2; and

FIG. 6 shows an enlarged illustration of the region B according to FIG. 2.

An exemplary embodiment of a floor cleaning machine, which is shown in FIG. 1 and designated therein by 10, comprises a chassis 12 on which a machine body 14 is arranged.

The chassis comprises a front wheel 16 and a steerable rear wheel (not visible in Figure 1). For tillage one or more tools 18 are provided.

In the embodiment shown, the floor cleaning machine 10 is a scrubbing machine and the tool 18 is a scrubbing tool accordingly.

On the machine body 14, elements of the floor cleaning machine 10 are arranged in particular within a housing. In one embodiment, a drive 20 to a Bearbeitungsbewegungswerkzeugs 18 and in particular to a Rotationsbewegungswerkzeugs 18 is disposed on the machine body 14. Further, a tank 22 for cleaning liquid is arranged on the machine body 14. The cleaning liquid is in particular fresh water

optionally with chemical additives.

The floor cleaning machine 10 may have an excess liquid suction means 24 on the floor. The suction device 24 includes, for example, a suction bar 26. In Figure 1, the suction bar 26 is shown in a non-operative position and in particular transport position.

The suction bar 26 is in fluid communication with a vacuum generating device 28 and in particular blower device, which generates the necessary for the suction vacuum air flow.

The vacuum generating device 28 is in communication with a separator 30, which in turn is in communication with a dirty water tank 32 which receives suctioned liquid.

The floor cleaning machine 10 shown in FIG. 1 is particularly self-propelled. In one embodiment, a travel drive 34 for the front wheel 16 is arranged on the machine body 14 for this purpose.

It may alternatively be provided that the machining tool 18 is arranged at a small acute angle to a flat surface and a driving feed of the floor cleaning machine 10 is effected by the friction of the rotating machining tool 18.

The floor cleaning machine 10 has a control device 35, which controls the drives 20, 34 and a drive of the vacuum generating device 28. The floor cleaning machine 10 shown in FIG. 1 is designed as a post-rotor machine, in which (in relation to straight-ahead travel) an operator runs behind the floor-cleaning machine 10.

The floor cleaning machine 10 comprises a handle unit 36 for

Guidance and operation of the floor cleaning machine 10. The handle unit 36 is formed in one embodiment as a steering wheel and is seated on a steering column, which acts for example on the front wheel 16 to cause turning of the handle unit 36 about a steering axis 38 a direction change.

On the handle unit 36 further controls for the floor cleaning machine 10 are arranged, in particular a main switch, which is designed for example as a key switch, and adjusting elements, for example, for speed adjustment.

The handle unit 36 is associated with a dead man's switching device 40 (FIGS. 2 to 6), which must be permanently activated for operation of the floor cleaning machine 10. Without this active actuation, in particular the traction drive of the floor cleaning machine 10 is stopped. Preferably, the rotation of the tool 18 is stopped without active actuation of the dead man's switching device 40. Further, preferably, the operation of the negative pressure generating means 28 is stopped without the release signal of the deadman circuit means 40.

The handle unit 36 is designed as a bow-shaped handle with a bracket 42, which is comprehensible by the hands of an operator. The bracket 42 of the bow handle is closed (designed as a "wheel"). Its dimensions are adapted to typical hand dimensions. It has an edge-free outer contour 44 (in particular FIGS. 3 to 5). In one embodiment, the bracket 42 is composed of a lower shell 46 and an upper shell 48. The lower shell 46 and the upper shell 48 are in particular made of a plastic material. The bracket 42 of the handle unit 36 has a spoke device 50. The spoke device 50 has a center plane 52. The handle unit 36 is in particular mirror-symmetrical to this center plane 52. The spoke device 50 has a receptacle 54, via which the handle unit 36 is fixed as a whole to a steering column 56 of the floor cleaning machine 10.

The bracket 42 of the handle unit 36 surrounds a first inner opening 58 and a second inner opening 60. The first inner opening 58 and the second inner opening 60 are separated by means of spoke device 50 from each other. In the first inner opening 58 and the second inner opening 60, if a

Operator holds the bracket 42 of the handle unit 36, immerse the operator's fingers or dive to allow embracing the bracket 42 with one or both hands. At the spoke device of the handle unit 36, in particular further operating elements, such as in particular a main switch of the floor cleaning machine 10 and further switching elements or adjusting elements are arranged. The handle unit 36 has a top 62 and an opposite bottom 64. The bottom 64 faces the machine body 14. FIG. 2 shows a plan view of the underside 64.

The deadman switching device comprises an actuating unit 66, which is arranged on the handle unit 36 and in particular on the underside 64. The actuating unit 66 is pivotally positioned on the bracket 42 in a partial area. The actuating unit 66 comprises a first region 68, by means of which it is fixed to the handle unit 36. The first region 68 sits firmly and immovably on the underside 64 of the handle unit 36. In one embodiment, the first region 68 is subdivided into spaced sections 70a, 70b, between which the spoke device 50 lies with the median plane 52. The partial regions 70a, 70b are in particular mirror-symmetrical with respect to the center plane 52. The actuating unit 66 further comprises a second region 72. This second region 72 is pivotally connected to the first region 68 via a hinge device 74. The hinge means 74 comprises in one embodiment a first hinge 76 which is connected to the portion 70a of the first portion 68, and a spaced second hinge 78 which is connected to the portion 70b of the first portion 68.

The actuator 66 is stiffer in the first region 68 and the second region 72 than on the hinge 74 to allow pivotal movement of the second region 72 toward the first region 68.

In one embodiment (Figure 6), the actuator 66 is provided in the first region 68 with reinforcing ribs 80 (Figure 6) to produce a correspondingly high mechanical rigidity.

The second region 72, which adjoins the hinge means 74, is also provided with reinforcing ribs 80 to produce a high mechanical rigidity. At the corresponding first hinge 76 or the second hinge 78, the actuation unit 76 is reinforcing rib-free in order to enable pivoting. The hinge device 74 forms a pivot joint with a pivot axis 82 (FIG. 6).

The top 62 of the handle assembly 36 has an envelope plane 84 (FIG. 1). The pivot axis 82 is parallel to this envelope plane 84 or at a small acute angle to this, which is in particular at most 30 °.

The actuating unit 66 is mirror-symmetrical to the center plane 52 and adapted to the shape of the handle unit 36.

The second region 72 has a spoke device 86 which lies below the spoke device 50 of the handle unit 36. The spoke device 86 is fork-shaped with a central web 88, on which a first web 90a and a spaced second web 90b sit. The first land 90a is with the portion 70a over the first

Hinge 76 is connected and the second web 90b is connected to the portion 70b via the second hinge 78.

Through a gap between the first web 90a and the second web 90b, the steering column 76 is penetrated or there is the part of the handle unit 36 with the receptacle 54. The second portion 72 of the actuator 66 is formed as a bow handle, which in its shape to the bow handle the handle unit 36 is adapted and follows its contour.

A corresponding bracket 92 of the actuating unit 66 and thus of the second region 72 of the actuating unit 66 has a first inner opening 94 and a second inner opening 96 whose shape is adapted to the associated first inner opening 58 and second inner opening 60 of the handle unit 36. The second region 72 with the bracket 92 of the actuating element 66 is designed such that when an operator grasps the strap handle of the handle unit 36, he can also grasp the actuating unit 66 in the second region 72 and in particular can grip around it. The operating unit 66 is designed such that an operator with one hand can simultaneously grasp the bow grip of the handle unit 36 and the bow grip of the actuating unit 66. A switching position of the actuating unit 66 is achieved when it is pressed against the handle unit 36. It must be overcome the force of a spring device to do so.

In one embodiment, the hinge means 74 is formed and in particular the actuator 76 has such inherent elasticity that the hinge means 74 is formed as a return spring means which holds the second portion 72 of the actuator 66 without effort of the operator of the handle unit 36 or moves away after releasing ,

In one embodiment, a corresponding return spring means 98 comprises at least one return spring which is spaced from the hinge means 74. In the first embodiment, the return spring means 98 comprises a first return spring 100 which is arranged on the web 90a. The first return spring 100 is injection-molded in particular on the actuating unit 66 and thus integrally connected thereto. In one embodiment, a recess 102 is provided in the region of the web 90a in which the first return spring 100 is arranged. The return spring 100 is supported on a corresponding abutment region 104 of the handle unit 36 and in particular on the spoke device 50 from. At the second web 90b sits a second return spring 106, which is arranged and formed in the same manner as the first return spring 100th

In particular, the first return spring 100 and the second return spring 106, which are spaced from one another, are mirror-symmetrical to the middle plane 52.

The return spring means 98 can be formed only by the return springs 100 and 106 or the hinge means 74 may have an additional return action.

In one embodiment, the actuator 66 is integrally formed of a plastic material. In particular, restoring springs 100, 106 are integrally formed on the actuating unit 66. An encoder-sensor device 108 is provided, which is used to determine a position of the actuating unit 66 and in particular a

Pivoting position of the second region 72 is used.

In one exemplary embodiment, the encoder-sensor device 108 includes, as the encoder 110, a pin 112, which is arranged in particular in one piece on the actuating unit 66. This pin 112 is positioned in particular on the central web 88.

The handle unit 36 has on the spoke device 50 a corresponding sensor 114, which determines the relative position of the pin 112 to the handle unit 36. In one embodiment, the sensor 114 is formed as a contact switch, in which case in particular an excellent position of the pin 112 and thus the operating unit 66 to the handle unit 36 can be detected. When the pin 112 acts on the corresponding sensor 114, a switching circuit is reached. This switching position is achieved by pressing the actuating unit 66 with its second area 72 against the handle unit 36. If the pin 112 does not mechanically contact the sensor 114, then the deadman switch 40 is in a non-switching position.

The sensor 114 (for example in the form of a microswitch) provides a corresponding enable signal for a shift position or a disable signal for a non-shift position. Other embodiments of the sensor-sensor device 108, for example via non-contact position detection is possible.

In the second area 72, the actuating unit 66 has a first stop surface 116 for the handle unit 36. The handle unit 36 has a corresponding second stop surface 118. Upon depression of the actuating unit 66, that is, when pivoting the second portion 72 on the handle unit 36 to overcoming the spring force of the return spring 98, the first stop surface 116 is moved toward the second stop surface 118. If these contact each other mechanically, then a further movement is no longer possible and an end position is reached. In particular, in this end position, the pin 112 acts on the sensor 114 such that a release signal is issued for a switching position.

In an exemplary embodiment, the second region 72 of the actuating unit 66 has an end 120 which faces the handle unit 36.

In no position is this end 120 spaced from the handle unit 36, that is, there is no position in an air gap between the end 120 and the handle unit 36 before. This minimizes the risk of pinching for an operator.

In one embodiment, the handle unit 36 for the second region 72 has a recess 122, in particular in the form of a groove. The second region 72 has an immersion element at the end 120, in particular in the form of a dip bar 124. The immersion element can be immersed in the recess 122. As a result, a guide for the mobility of the second region 72 of the actuating unit 66 to the handle unit 36 is formed.

Based on the cross section, there is always a certain overlap between the immersion element 124 and the handle unit 36, so that the end 120 is not spaced apart from the handle unit 36 in any position. The floor cleaning machine 10 works as follows:

For operation, and in particular for guiding the floor cleaning machine 10, an operator uses the handle unit 36. Through this is a

Direction of travel movement of the floor cleaning machine 10 controllable.

Furthermore, other adjustable control options of the floor cleaning machine 10 are adjustable.

For a rotary drive of the tool 18, the dead man's switching device 40 must be in a switching position. This then gives a switching signal (enable signal) to the control device 35 and this can activate the drive 20 (and possibly the drive 34, if present) and optionally further drives. Without release signal of the sensor 114, these are not activated. The switching position is detected by the sensor-sensor device 108. For the switching position of the dead man's switching device 40, an active access of an operator is necessary. If such an active access is not present, then the deadman switch 40 (via the Sensor sensor device 108) no release signal and a corresponding control device of the floor cleaning machine 10 prevents a drive of the floor cleaning machine 10 (and possibly a tool drive).

In an initial position of the operating unit 66 without operator access, the return spring device 98 presses the second area 72 of the operating unit 66 away from the handle unit 36. There is then no mechanical contact between the pin 112 and the sensor 114 and no enable signal is provided.

The hinge device 74 allows the second area 72 to be swiveled onto the handle unit 36. This pivoting must take place by overcoming the return spring device 98. To do this, an operator must exert an active force by pressing the second region 72 of the actuating unit 66 against the handle unit 36 while holding the handle unit 36 until the first stop surface 116 abuts against the second stop surface 118.

The corresponding pivoting mobility is made possible by means of the hinge device 74.

The second region 72 of the actuating unit 66 is guided on the handle unit via immersion of the immersion element 124 on the recess 122.

Due to the corresponding design of the second region 72 with its end 120, there is an overlap between the actuating unit 66 and the handle unit 36 for minimizing the danger of clamping for an operator.

As soon as an operator releases the actuating unit 66, it pivots back due to the spring force of the return spring device 98, wherein a corresponding starting position is determined by the inherent rigidity of the actuating element 66.

In such a movement, the mechanical contact of the pin 112 with the sensor 114 is lost and the sensor 114 generates thereby no more release signal. The dead man's switching device 40 is in a non-switching the position and the travel drive 34 (and optionally the drive 20) receive a shutdown signal or are no longer actively activated.

The dead man's switching device 40 is realized by the actuating unit 66, which is arranged on the handle unit 36 and the sensor sensor device 108. The actuating unit 66 can be formed in a structurally simple manner and form in particular in one piece. It can be adapted to the handle unit 36 in an ergonomically simple manner. Accordingly, it is also easy to use and in particular "fatigue" operable.

It is possible to realize a symmetrical design in a simple manner, so that a tireless operation can be achieved.

The sensor-sensor device 108 can be easily formed and in particular positioned on the spoke devices 50 and 86. In principle, a single encoder 110 and a single sensor 114 are sufficient for forming the sensor-sensor device 108. Floor cleaning machine

chassis

machine body

front facility

Tool

drive

tank

suction

squeegees

Negative pressure generator

separators

tank

traction drive

control device

Handle element

steering axle

Deadman switch means

hanger

outer contour

subshell

Upper shell

spoke facility

midplane

admission

steering column

first interior opening

second interior opening

top

bottom

operating unit

first area 70a subarea

70b subarea

72 second area

74 hinge device

76 first hinge

78 second hinge

80 reinforcement rib

82 pivot axis

84 envelope level

86 spoke device

88 central pier

90a first footbridge

90b second bridge

92 straps

94 first inner opening

96 second interior opening

98 return spring device

100 first return spring

102 recess

104 investment area

106 second return spring

108 Sensor sensor device

110 donors

112 pen

114 sensor

116 first stop surface

118 second stop surface

120 finish

122 recess

124 immersion element

Claims

claims

A floor cleaning machine comprising a handle unit (36) for operating the floor cleaning machine and a dead man's switching device (40) with an actuating unit (66), characterized in that the actuating unit (66) has a first area (68) on the handle unit (36 ), the operating unit (66) has a second area (72) which is pivotable relative to the first area (68), and that the second area (72) is integrally connected to the first area (68) via a hinge device (74) ), wherein a pivotal position of the second portion (72) to the first portion (68) determines whether the deadman switch (40) is indexing or non-indexing.

2. Floor cleaning machine according to claim 1, characterized in that the actuating unit (66) on the first region (68) and / or on the second region (72) with reinforcing ribs (80) is provided and on the hinge means (74) is free of reinforcing ribs.

3. floor cleaning machine according to claim 1 or 2, characterized in that the handle unit (36) on an upper side (62) has an envelope plane (84) and that a pivot axis (82) of the hinge means (74) for the pivoting of the second region (72 ) is oriented parallel to the first region (68) or at a small acute angle of at most 30 ° to the envelope plane (84).

4. Floor cleaning machine according to one of the preceding claims, characterized in that the handle unit (36) has an upper side (62) and an opposite lower side (64), wherein the underside (64) faces a machine body (14), and that the actuating unit (66) is arranged on the underside (64).

5. Floor cleaning machine according to one of the preceding claims, characterized in that the actuating unit (66) is associated with a return spring means (98), wherein for a switching position of the actuating unit (66), a spring force of the return spring means (98) must be overcome.

6. floor cleaning machine according to claim 5, characterized in that the return spring means (98) is arranged on the actuating unit (66) and in particular is integrally connected thereto.

7. floor cleaning machine according to claim 5 or 6, characterized in that the return spring means (98) at least partially spaced from the hinge means (74) is arranged.

8. Floor cleaning machine according to one of the preceding claims, characterized in that the hinge means (74) comprises a first hinge (76) and a spaced second hinge (78).

9. floor cleaning machine according to claim 8, characterized in that the first hinge (76) is associated with a spaced first return spring (100) and the second hinge (78) a spaced second return spring (106), wherein the first return spring (100) and the second return spring (106) spaced from each other.

10. Floor cleaning machine according to one of the preceding claims, characterized in that the actuating unit (66) is designed as a rocker.

11. Floor cleaning machine according to one of the preceding claims, characterized in that the actuating unit (66) is integrally formed.

12. Floor cleaning machine according to one of the preceding claims, characterized in that the dead man's switching device (40) is at switching pressures of the actuating unit (66) against the handle unit (36) or is.

13. Floor cleaning machine according to one of the preceding claims, characterized by a sensor sensor means (108) through which a switching position of the actuating unit (66) is detectable.

14. Floor cleaning machine according to claim 13, characterized in that a passive encoder (110) of the sensor sensor device (108) on the second region (72) is arranged.

15. Floor cleaning machine according to claim 13 or 14, characterized in that a sensor (114) of the sensor sensor device (108) on the handle unit (36) is arranged.

16. Floor cleaning machine according to one of claims 13 to 15, characterized in that the encoder (110) is or comprises a pin (112) and that the sensor (114) is a with the pin (112) cooperating contact switch.

17. Floor cleaning machine according to one of the preceding claims, characterized in that the actuating unit (66) a

Spoke device (86) and / or the handle unit (36) a

Spoke means (50), wherein in particular a sensor sensor means (108) on the or the spoke means (50, 86) is arranged.

18. Floor cleaning machine according to claim 17, characterized in that the handle unit (36) and / or the actuating unit (66) are mirror-symmetrical to their spoke device (50, 86).

19. Floor cleaning machine according to claim 17 or 18, characterized in that in the spoke device (50) of the handle unit (36) one or more controls for the floor cleaning machine are arranged.

20. Floor cleaning machine according to one of the preceding claims, characterized in that the handle unit (36) is designed as a bow handle and / or the actuating unit (66) as a bow-shaped handle.

21. Floor cleaning machine according to claim 20, characterized in that the handle unit (36) and the actuating unit (66) are formed so that when embracing the bow handle of the handle unit (36) of the bow handle of the actuating unit (66) is mitumfassbar.

22. Floor cleaning machine according to claim 20 or 21, characterized in that the handle unit (36) has a closed bow handle which limits at least one inner opening (58; 60) and in particular delimits a first inner opening (58) and a second inner opening (60), wherein in particular between the first inner opening (58) and the second inner opening (60) a spoke device (50) is arranged.

23. Floor cleaning machine according to claim 22, characterized in that the actuating unit (66) has a first inner opening (94) and a second inner opening (96) which on the first inner opening (58) and the second inner opening (60) of the handle unit (36 ) are adjusted.

24. Floor cleaning machine according to one of the preceding claims, characterized in that the second region (72) of the actuating unit (66) has a first stop surface (116) and the handle unit (36) has a corresponding second stop surface (118), wherein upon contact of the first Stop surface (116) with the second stop surface (118) is a further movement of the second region (72) on the handle unit (36) is locked.

25. Floor cleaning machine according to one of the preceding claims, characterized in that the handle unit (36) has a guide for the second region (72) of the actuating unit (66).

26. Floor cleaning machine according to claim 25, characterized in that the handle unit (36) has a recess (122) and the second region (72) of the actuating unit (66) has a plunging element (124) for the recess (122).

27. Floor cleaning machine according to one of the preceding claims, characterized in that an end (120) of the second region (72) which faces the handle unit (36) is at no position of the actuating unit (66) spaced from the handle unit (36) ,

28. Floor cleaning machine according to one of the preceding claims, characterized in that the handle unit (36) is arranged on a steering column (56) and in particular is designed as a steering wheel.

29. Floor cleaning machine, characterized by an education as a scrubber or sweeper.

30. Floor cleaning machine according to one of the preceding claims, characterized by a design as a self-propelled floor cleaning machine.

31. Floor cleaning machine according to one of the preceding claims, characterized by an education as Nachläufermaschine.