Garden appliances

Abstract

The present invention relates to a garden implement, wherein the garden implement has: a controllable travel drive system, wherein the travel drive system is configured for the forward movement of the garden implement; and a speed control device, wherein the speed control device has a user-operable operating element and a displacement sensor device; wherein at least one sensor component of the displacement sensor device is supported for translational movement; wherein the operating element is configured, by its manipulation, for translational displacement of at least the sensor component, wherein the sensor signal of the displacement sensor device is related to the translational position of at least the sensor component; and wherein the speed control device is configured for controlling the travel drive system according to the sensor signal for variably adjusting the travel speed of the garden implement.

Description

Technical Field

[0001] The present invention relates to a garden implement. Summary of the Invention

[0002] The object of the present invention is to provide a garden implement having improved characteristics.

[0003] The present invention solves this object by providing a garden implement having the features of claim 1. Advantageous refinements and / or designs of the present invention are described in the dependent claims.

[0004] In particular, an electrical garden implement according to the present invention comprises or has an electrically controllable, in particular electrical, travel drive system and an electrical speed control device, in particular a speed adjustment device. The travel drive system is configured or arranged for an automatic forward movement of the garden implement. The speed control device comprises or has an operation element that is variably user-operable, in particular user-movable, and an electrical displacement sensor device. At least one sensor component of the displacement sensor device, in particular the entire displacement sensor device, is variably and / or linearly, translatably movably or translatably displaceably supported. The operation element is configured or arranged, by its manipulation, in particular its movement, for a translational displacement or movement or displacement of at least the sensor component, in particular the entire displacement sensor device. The electrical and / or variably adjustable sensor signal of the displacement sensor device, in particular the value of the sensor signal, is related, in particular linearly related, to the variably adjustable translational position of at least the sensor component, in particular the value of the position or the path. The speed control device is configured or arranged for automatically and / or electrically controlling, in particular adjusting, the travel drive system based on the sensor signal for variably adjusting the travel speed of the garden implement, in particular the value of the travel speed.

[0005] This enables, in particular the travel drive system enables: the user of the garden implement does not need to push the garden implement. Furthermore, this enables, in particular the variable adjustment of the travel speed enables: the travel speed can have more than just a single value. Thereby, this enables a high level of comfort for the user. Additionally, this enables, in particular the translational movement or displacement of at least the sensor component enables a simple and / or reliable and / or cost-effective construction of the speed control device.

[0006] In particular, the garden implement can be a garden processing implement, in particular a lawn mower. Additionally or alternatively, the garden implement can be hand-guided and / or ground-guided. In particular, a hand-guided garden implement can mean: the garden implement can have a mass of at most 100 kilograms (kg), in particular at most 50 kg, in particular at most 20 kg, and / or at least 5 kg, in particular at least 10 kg.

[0007] The drive system for travel can have wheels and / or a motor drive system, in particular a motor drive system for driving the wheels.

[0008] The speed control device can have a housing. In particular, at least the sensor component, in particular the entire displacement sensor device, can be supported translatably with respect to the housing, in particular via the housing. Additionally or alternatively, at least the sensor component, in particular the entire displacement sensor device, does not need to or can not be rotatably movable, in particular rotatably supported.

[0009] The operating element can act together with the sensor component, in particular directly and / or indirectly, in particular touch the sensor component, for the displacement of at least the sensor component.

[0010] The operating element can be configured such that by its actuation it is used for the displacement of at least the sensor component for a variable adjustment of the position. In other words: The position can be variably adjusted by displacement.

[0011] The sensor signal can change as the position increases, in particular increase and / or decrease.

[0012] Variable can mean continuous or persistent. Additionally or alternatively, being variably adjustable can mean being adjustable to at least three different values and / or at least two values different from zero. Furthermore, additionally or alternatively, for variable adjustment can mean for adjustment to at least three different values and / or at least two values different from zero.

[0013] In an improved embodiment of the invention, the displacement sensor device includes or has in particular an electrical switch. The in particular electrical and / or adjustable switch state of the switch, in particular the value of the switch state, is position-related. The speed control device, in particular the switch, is configured to release, in particular switch on and / or lock, in particular switch off the drive system for travel automatically according to the switch state. In particular in the case of error control of the drive system for travel, this achieves a high level of safety of the speed control device and thus of the garden appliance. In particular, the switch state and the sensor signal can be independent of each other and / or different, in particular of different types.

[0014] In an improved embodiment of the present invention, the sensor component of the displacement sensor device and another sensor component are supported relative to each other in a particularly variable and / or linear, translatable or translationally movable manner. The sensor signal is related to the position of the sensor component and the other sensor component relative to each other, in particular only. This enables the sensor signal to be variably adjustable. In particular, the operating element can be configured such that by its actuation, it is used for the displacement of the sensor component and the other sensor component relative to each other, in particular for the variable adjustment of the position. Additionally or alternatively, the other sensor component can be supported by the sensor component in a particularly variable and / or linear, translatable or translationally movable manner. Furthermore, additionally or alternatively, the sensor component and the other sensor component do not need to or can not be rotatably movable relative to each other, in particular rotatably supported. Additionally or alternatively, the sensor component can have the switching component of the switch (if any) and / or act directly with the switching component of the switch, in particular touch the switching component of the switch, while the other sensor component can have another switching component of the switch and / or act directly with the other switching component of the switch, in particular touch the other switching component of the switch.

[0015] The displacement sensor device does not need to have or can not have a rotary potentiometer.

[0016] In a design embodiment of the present invention, the displacement sensor device includes or has a linear potentiometer. The sensor signal is the potentiometer signal of the linear potentiometer. This enables the sensor signal to be related to the position of the sensor component and the other sensor component relative to each other. In particular, the sensor component can have the potentiometer component of the linear potentiometer and / or act directly with the potentiometer component of the linear potentiometer, in particular touch the potentiometer component of the linear potentiometer, while the other sensor component can have another potentiometer component of the linear potentiometer and / or act directly with the other potentiometer component of the linear potentiometer, in particular touch the other potentiometer component of the linear potentiometer. Additionally or alternatively, the potentiometer signal can have, in particular, an electrical resistance signal and / or an electrical voltage, in particular a Hall voltage. Additionally or alternatively, the linear potentiometer can be different from the switch (if any).

[0017] In a design of the present invention, the speed control device includes or has in particular a mechanical limiting element. The limiting element is constructed or configured to mechanically limit, in particular prevent, the translational displacement or movement or motion of another sensor component, particularly in the case of the manipulation of an operating element, particularly for achieving the translational displacement of a sensor component and another sensor component relative to each other. In particular, the limiting element can act directly on another sensor component, particularly touch the other sensor component, in order to limit the displacement of the other sensor component. Additionally or alternatively, the limiting element can be configured to limit the displacement of another sensor component with respect to the housing (if present).

[0018] In a design of the present invention, the limiting element is in particular variably movably supported. The operating element is constructed or configured to cause, by its manipulation, particularly its movement, the translational displacement or movement or motion of another sensor component. The speed control device includes or has another user-operable, particularly user-movable, operating element. The other operating element is constructed or configured to cause, by its manipulation, particularly its movement, the movement of the limiting element for a variably adjustable limitation of the displacement of another sensor component, particularly caused by the manipulation of the operating element. This enables the maximum traveling speed of the garden appliance, particularly the variable adjustment of the value of the maximum traveling speed. Thereby, this achieves particularly high comfort for the user. In particular, the limiting element can be movably supported with respect to the housing, particularly by the housing (if present). Additionally or alternatively, if present, the other sensor component can be variably and / or linearly translatably movably or translatably supported with respect to the housing. Furthermore, additionally or alternatively, the other sensor component need not or may not be rotatably movable, particularly rotatably supported. Furthermore, additionally or alternatively, the operating element can act on another sensor component, particularly by means of the sensor component, for the displacement of the other sensor component. Furthermore, additionally or alternatively, the other operating element can act directly and / or indirectly on the limiting element to cause the movement of the limiting element.

[0019] In a design of the present invention, the speed control device includes or has additional, in particular mechanical, limiting elements. The additional limiting elements are configured or arranged to mechanically limit, in particular, the actuation of the operating element and / or the displacement of the sensor component in order to limit the relative displacement of the sensor component and another sensor component relative to each other, in particular caused by the actuation of the operating element. In particular, the additional limiting elements do not need to be or may not be movably supported, in particular movably supported, with respect to the housing. In other words: The additional limiting elements may be immovable or fixed with respect to the housing. In particular, the additional limiting elements may be part of the housing or the housing may have limiting elements. Additionally or alternatively, the additional limiting elements may act together with them / it, in particular directly and / or indirectly, in order to limit the actuation of the operating element and / or the displacement of the sensor component, in particular by touching them / it. Furthermore, additionally or alternatively, the additional limiting elements may be configured to limit the actuation of the operating element and / or the displacement of the sensor component with respect to the housing (if present).

[0020] In a design of the present invention, the limiting element includes or has an eccentric cam section (Exzenterkulissenabschnitt) for variably adjustable limitation of the displacement of another sensor component and is rotatably or pivotably supported. This enables simple and / or reliable adjustment of the limitation. In particular, the eccentric cam section may act together with the other sensor component, in particular directly, in order to limit the displacement of the other sensor component, in particular by touching the other sensor component. Additionally or alternatively, another operating element may be configured such that its actuation serves for the rotational or pivoting movement of the limiting element for variably adjustable limitation of the displacement of another sensor component. Furthermore, additionally or alternatively, the limiting element does not need to be or may not be translatable, in particular translatably supported. Furthermore, additionally or alternatively, the displacement axis of the other sensor component and the rotational axis of the limiting element may extend non-parallel to each other, in particular orthogonally and / or skewly (windschief) to each other.

[0021] In a design of the present invention, when limiting the displacement of another sensor component, the displacement axis of the other sensor component and the surface of the eccentric cam section extend substantially exactly orthogonally to each other. This achieves: reducing or even preventing the torque on the limiting element by the other sensor component. Thereby, this prevents accidental adjustment of the limiting element. In particular, the surface may act together with the other sensor component, in particular directly, in particular by touching the other sensor component. Additionally or alternatively, substantially may represent a deviation, in particular an angular deviation, of at most 15 degrees (°), in particular at most 5°, in particular at most 1°.

[0022] In a design of the present invention, the speed control device includes or has a latching mechanism. The latching mechanism is configured or arranged to mechanically and / or stepwise latch an adjustment of a limiting element, in particular a variable adjustment. This prevents an accidental adjustment of the limiting element. In particular, the latching can be released without damage and / or without tools. Additionally or alternatively, the latching mechanism can interact with the limiting element, in particular directly and / or indirectly. In particular, the latching mechanism can be partly part of the limiting element or the limiting element can have part of the latching mechanism. Additionally or alternatively, the latching mechanism can be configured to latch an adjustment of the limiting element with respect to the housing (if present).

[0023] In a design of the present invention, the latching mechanism is spring-elastic. In particular, the latching mechanism includes or has a body spring. This enables a simple and / or reliable construction of the latching mechanism.

[0024] In a design of the present invention, another operating element is supported in a rotatable or pivotable manner. This enables a simple and / or reliable construction of the speed control device. In particular, the other operating element can be configured, by its rotational or pivoting movement, for a variably adjustable limitation of the movement of the limiting element for the displacement of another sensor component. Additionally or alternatively, the other operating element can be supported in a rotatable manner with respect to the housing, in particular by the housing. Additionally or alternatively, the other operating element does not need to be or can not be translatably movable, in particular translatably supported.

[0025] In an improved version, in particular a design, of the present invention, the speed control device, in particular the displacement sensor device, includes or has a sensor reset element. The sensor reset element is configured or arranged to apply a force to at least the sensor component, in particular also another sensor component, to move them away from each other into the translational sensor initial position. This enables an automatic deactivation of the drive system or an adjustment of the driving speed to zero. Thereby, this enables a high safety of the speed control device and thus of the garden appliance. In particular, the sensor reset element can have, in particular be, a spring, in particular a helical spring. Additionally or alternatively, the sensor reset element can interact, in particular directly, with the sensor component, in particular also another sensor component, in order to apply a force to move them away from each other into the sensor initial position, in particular touch it / them. Additionally or alternatively, the operating element can interact with the other sensor component for the displacement of the other sensor component by means of the sensor reset element.

[0026] In an improved embodiment of the present invention, the operating element is movably supported. The speed control device comprises or has an operating reset element. The operating reset element is configured or arranged to force-load the operating element into the initial operating position. This enables: the operating element does not need to or may not displace at least the sensor component. Thereby, this enables the automatic deactivation of the drive system or the adjustment of the driving speed to zero. Thereby, this enables a high level of safety of the speed control device and thus of the garden appliance. In particular, the operating element may be movably supported with respect to the housing, in particular via the housing. Additionally or alternatively, the operating reset element may be, in particular, a spring, in particular a helical spring. Furthermore, additionally or alternatively, the operating reset element may act directly, in particular, on the operating element in order to force-load the operating element into the initial operating position, in particular by touching the operating element. Additionally or alternatively, the operating reset element may be different from the sensor reset element (if present).

[0027] In an improved embodiment of the present invention, the operating element is supported rotatably or pivotably. This enables a simple and / or reliable construction of the speed control device. In particular, the operating element may be configured to displace at least the sensor component by means of its rotational or pivoting movement. Additionally or alternatively, the operating element may be rotatably supported with respect to the housing, in particular via the housing. Furthermore, additionally or alternatively, the operating element does not need to or may not be translatable, in particular translatably supported. Additionally or alternatively, the displacement axis of at least the sensor component and the rotational axis of the operating element may extend non-parallel to each other, in particular orthogonally and / or skew to each other. Description of the Drawings

[0028] Other advantages and aspects of the present invention result from the claims and from the following description of at least one preferred embodiment of the present invention, which is illustrated with the aid of the drawings. Herein:

[0029] Figure 1 A perspective view of a garden appliance according to the present invention is shown, which garden appliance has a controllable drive system and a speed control device;

[0030] Figure 2 A perspective view of the speed control device is shown;

[0031] Figure 3 A side view of the speed control device is shown;

[0032] Figure 4 A sectional view of the speed control device is shown, which speed control device has an unoperated operating element and an unmoved limiting element;

[0033] Figure 5Cross-sectional view showing a speed control device having an operating element at maximum actuation, a stationary limiting element, and a displacement sensor device that is displaced maximally in translation by the operating element at maximum actuation, the displacement sensor device having a sensor part and a further sensor part that are not displaced relative to one another in translation by the actuated operating element and the stationary limiting element;

[0034] Figure 6 Cross-sectional view showing a speed control device having an operating element at maximum actuation, a moving limiting element, and a sensor part and a further sensor part that are displaced relative to one another by the actuated operating element and the moving limiting element;

[0035] Figure 7 Cross-sectional view showing a speed control device having an unactuated operating element, a limiting element at maximum movement, and a sensor part and a further sensor part that are not displaced relative to one another by the unactuated operating element and the limiting element at maximum movement;

[0036] Figure 8 Cross-sectional view showing a speed control device having an operating element at maximum actuation, a limiting element at maximum movement, and a sensor part and a further sensor part that are displaced maximally relative to one another by the operating element at maximum actuation and the limiting element at maximum movement;

[0037] Figure 9 Perspective view showing a displacement sensor device;

[0038] Figure 10 Cross-sectional view showing a displacement sensor device having a switch, a linear potentiometer, and a sensor reset element;

[0039] Figure 11 Graph showing the switching state of the switch as a function of the relative position of the sensor part and the further sensor part;

[0040] Figure 12 Graph showing the sensor signal in the form of a potentiometer signal of a linear potentiometer as a function of the relative position of the sensor part and the further sensor part;

[0041] Figure 13 Graph showing the force of the sensor reset element as a function of the relative position of the sensor part and the further sensor part;

[0042] Figure 14 Graph showing the travel speed of a garden appliance for different actuations of the operating element and different movements of the limiting element; and

[0043] Figure 15 Showing having as Figure 5Another cross-sectional view of the speed control device of the operation element with maximum manipulation as in Detailed Description

[0044] Figure 1 The garden appliance 1 according to the invention is shown. As Figure 2 and 3 shown, the garden appliance 1 has a controllable travel drive system 5 and a speed control device 10. The travel drive system 5 is configured for the forward movement of the garden appliance 1, in particular forward movement. As Figures 4 to 10 shown, the speed control device 10 has a user-operable operating element 11 (which has an arcuate part 11' in the illustrated embodiment) and a displacement sensor device 15. As Figure 5 , 6 and 8 shown, at least one sensor part 16 of the displacement sensor device, in the illustrated embodiment the entire displacement sensor device 15, is supported so as to be translatable in the direction z in the illustrated embodiment, in particular moved or displaced. As Figure 5 , 6 and 8 shown, the operating element 11 is configured, by its manipulation, for at least the sensor part 16, in the illustrated embodiment the entire displacement sensor device 15, to be displaced translationally, in particular directly, in the direction z in the illustrated embodiment, in particular displaced. The sensor signal S15 of the displacement sensor device 15 is related to the translational position L15', L15'' of at least the sensor part 16 in the direction z in the illustrated embodiment, as Figure 12 shown. As Figure 14 shown, the speed control device 10 is configured to control the travel drive system 5 according to the sensor signal S15, in particular to control, in particular and thereby variably adjust, the travel drive system 5 in order to variably adjust the travel speed v1 of the garden appliance 1.

[0045] In the illustrated embodiment, the garden appliance 1 is a lawn mower 1'.

[0046] Specifically, the garden appliance 1 has a garden tool not shown, in particular a garden processing tool (which is a mowing tool in the illustrated embodiment), an operable tool drive system not shown for driving the garden tool, and a further operating element 2 for operating the tool drive system, which has a further arcuate part 2' in the illustrated embodiment.

[0047] Furthermore, in the illustrated embodiment, the travel drive system 5 has two wheels and a motor drive system not shown for driving the two wheels.

[0048] Furthermore, in the illustrated embodiment, the garden appliance 1 has two further wheels, in particular non-driven wheels.

[0049] Furthermore, in the illustrated embodiment, the garden appliance 1 is an electrical garden appliance 1'', in particular a battery-operated garden appliance 1''.

[0050] Furthermore, as Figure 5 , 6 and 8 show, in the illustrated embodiment, the operating element 11 is supported, in particular moved or displaced, rotatably about a direction r orthogonal to the direction z.

[0051] Furthermore, as Figure 6 and 8 show, in the illustrated embodiment, the sensor part 16 of the displacement sensor device 15 and a further sensor part 17 are supported so as to be translatable relative to one another in the direction z, in particular moved or displaced. The sensor signal S15 is related to the positions L15', L15'' of the sensor part 16 and the further sensor part 17 relative to one another.

[0052] Furthermore, the displacement sensor device 15 has a linear potentiometer 19, as Figure 10 shows. The sensor signal S15 is the potentiometer signal S19 of the linear potentiometer 19, as Figure 12 shows.

[0053] In particular, in the illustrated embodiment, the sensor signal S15 in the form of the potentiometer signal S19 changes, in particular decreases, with an increasing position L15''.

[0054] Furthermore, the speed control device 10 has a limiting element 25, as Figures 4 to 8 shows. The limiting element 25 is configured to directly limit, in particular limit, the translational displacement of the further sensor part 17 in the direction z in the illustrated embodiment when the operating element 11 is actuated for the translational displacement of the sensor part 16 and the further sensor part 17 relative to one another, as Figures 6 to 8 shows.

[0055] In detail, as Figures 6 to 8 shows, in the illustrated embodiment, the limiting element 25 is supported so as to be movable, in particular moved or displaced, about the direction r, in particular rotatably supported, in particular moved or displaced.

[0056] Additionally, as Figure 5 , 6 and 8 show, the operating element 11 is configured, by its actuation, for the translational displacement of the further sensor part 17 in the direction z in the illustrated embodiment, in particular displacement. The speed control device has a further user-operable operating element 12 which, in the illustrated embodiment, has a lever 12', as Figures 1 to 3 shows. As Figures 6 to 8As shown, the additional operating element 12 is configured such that by its actuation, it is used to limit the movement of the element 25, particularly directly around the direction r, and especially around the direction r in the illustrated embodiment, for variably adjustable limitation of the additional sensor component 17.

[0057] Furthermore, the speed control device 10 has an additional limiting element 26, which in the illustrated embodiment is in the form of a shoulder 26' and / or at least one stop 26'', as Figures 4 to 8 shown in FIGS. 15. As Figure 5 shown in FIGS. 6, 8 and 15, the additional limiting element 26 is configured to limit the actuation of the operating element 11, particularly directly, and / or to limit, particularly directly, the displacement of the sensor component 16, in order to limit the relative displacement of the sensor component 16 and the additional sensor component 17 with respect to each other.

[0058] Furthermore, the limiting element 25 has an eccentric rocker section 27 for variably adjustable limitation of the displacement of the additional sensor component 17 and is rotatably supported, as Figures 4 to 8 shown in FIG.

[0059] Specifically, when limiting the displacement of the additional sensor component 17, the displacement axis A17 of the additional sensor component and the surface O27 of the eccentric rocker section 27 extend substantially orthogonally to each other.

[0060] In particular, the displacement axis A17 of the additional sensor component 17 and the rotation axis A25 of the limiting element 25 do not extend parallel to each other, and in the illustrated embodiment, they extend orthogonally and / or skewly.

[0061] In other words: The additional operating element 12 is configured such that by its actuation, it is used to variably adjust, particularly directly and variably, the limiting element 25, particularly the surface O27 of the eccentric rocker section 27 and the additional limiting element 26 (in the form of a shoulder 26' in the illustrated embodiment), with respect to each other, the translational spacing AB in the direction z in the illustrated embodiment.

[0062] Furthermore, the speed control device has a locking mechanism 28, as Figures 4 to 8 shown in FIG. The locking mechanism 28 is configured to lock, particularly directly, the adjustment of the limiting element 25, particularly the adjustment of the limiting element 25.

[0063] Specifically, the locking mechanism 28 is spring - elastic. In particular, the locking mechanism 28 has a main body spring 29.

[0064] In particular, as Figures 6 to 8As shown, the main spring 29 is supported in a particularly rotatably movable manner about the direction r in the illustrated embodiment, and is particularly movable or displaceable. In addition, the main spring 29 is particularly rotationally fixedly connected to the limiting element 25, in particular they are integrated.

[0065] In addition, the locking mechanism 28 has a plurality of particularly immovable or non-movable or fixed recesses 31, in particular for engaging with the protrusions 30 of the main spring 29 respectively.

[0066] In an alternative embodiment, the locking mechanism may additionally or alternatively have a material spring, in particular a leaf spring. In addition, additionally or alternatively, the spring, in particular the main spring or the material spring, does not need to or may not be particularly rotatably movable, particularly rotatably movably supported, or does not need to or may not be immovable or non-movable or fixed, and / or does not need to or may not be fixedly connected to the limiting element. In particular, the limiting element and the spring, in particular the main spring or the material spring, may have corresponding locking profiles with respect to each other, in particular in the form of at least one recess and at least one protrusion.

[0067] In addition, as Figures 6 to 8 shown, in the illustrated embodiment, the additional operating element 12 is supported in a rotatably movable manner about the orthogonal direction r in the illustrated embodiment, and is particularly movable or displaceable.

[0068] In addition, the speed control device 10 has an operating return element 21, as Figure 4 and 6 shown in FIGS. 8. The operating return element 21 is configured to particularly directly apply a force to the operating element 11, particularly to apply a force particularly from the operating position L11'' as shown in FIGS. Figure 5 , 6 and 8 to the operating initial position L11' as shown in FIGS. Figure 4 and 7 .

[0069] In addition, the speed control device 10, particularly the displacement sensor device 15, has a sensor return element 20, as Figure 10 shown. The sensor return element 20 is configured to particularly directly apply a force to at least the sensor component 16, particularly also to apply a force to the other sensor component 17 so that they move away from each other, particularly to apply a force particularly from the translational displacement position L15'' as shown in FIGS. Figure 6 and 8 to the translational sensor initial position L15' as shown in FIGS. Figure 4 , 5 and 7.

[0070] In particular, the operating element 11 is configured to be used for translationally displacing the other sensor component 17, particularly for displacing the other sensor component, by means of its manipulation with the aid of the sensor component 16 and the sensor return element 20.

[0071] In the illustrated embodiment, the sensor reset element 20 and in particular the spring-elastic latching mechanism 28, in particular the body spring 29, are dimensioned such that in the maximum displacement position 15'' or in the case of the maximum, in particular the maximum possible displacement of the sensor part 16 and the further sensor part 17 relative to one another (as Figure 8 shown therein), the force F20 exerted by the further sensor part 17 on the limiting element 25, in particular on the surface O27 of the eccentric rocking part section 27, for example a force of 23 newtons (N) (as Figure 13 shown therein) is less than the force F29 to be exerted for adjusting the latching mechanism 28, in particular the body spring 29, for example a force of 25 N. This prevents an accidental adjustment of the limiting element 25.

[0072] Furthermore, the displacement sensor device 15 has a switch 18, as shown as 10 in the figure. The switch state S18 of the switch 18 is related to the positions L15', L15'', in particular the positions of the sensor part 16 and the further sensor part 17 relative to one another, as Figure 11 shown therein. The speed control device 10 is configured to release and / or lock the drive system 5 for driving, in particular directly, according to the switch state S18, in particular as shown as 6 and 8 in the figure to release the drive system for driving and as Figure 4 shown as 5 and 7 therein to lock the drive system for driving.

[0073] Specifically, the speed control device 10 has an EC - electronic device (not shown). The EC - electronic device is configured to output a release signal to a DC - electronic device (not shown) of the drive system 5 for driving or to wake up the DC - electronic device according to the switch state S18.

[0074] In Figure 4 shown therein, the operating element 11 is not actuated or is in the initial operating position L11', in particular the bow 11' is open. Thereby, the sensor part 16 and the further sensor part 17 do not displace relative to one another or are in the sensor initial position L15'. Thereby, the switch state S18 is open or low, as shown as 11 in the figure, and thereby the speed control device 10 locks the drive system 5 for driving. Additionally, thereby the sensor signal S15 is high, as shown as 12 in the figure, and thereby the speed control device 10 controls the drive system 5 for driving to adjust the driving speed v1 to 0, as Figure 14 shown therein.

[0075] In Figure 5In this case, although the operating element 11 is maximally actuated or in the maximum actuation position L11'', in particular the bow-shaped element 11' is closed, in particular restricted by a further restricting element 26. However, the restricting element 25 is moved or adjusted in such a way, in particular by a further operating element 12 is moved or adjusted in such a way, in particular for a maximum driving speed vmax'''' equal to 0 (as shown in Figure 14 as shown therein), such that this restricting element does not restrict the displacement of the further sensor component 17, in particular by the displacement of the operating element 11. Thereby, the sensor component 16 and the further sensor component 17 do not displace relative to one another or are in the sensor initial position L15'. Thereby, the switch state S18 is low and thereby the speed control device 10 locks the drive system 5. Additionally, thereby the sensor signal S15 is high and thereby the speed control device 10 controls the drive system 5 in order to adjust the driving speed v1 to 0.

[0076] In Figure 6 this case, the operating element 11 is maximally actuated or in the maximum actuation position L11''. Additionally, the restricting element 25 is moved or adjusted in such a way, in particular by a further operating element 12 is moved or adjusted in such a way, in particular for a maximum driving speed vmax'' equal to 3.25 kilometers per hour (km / h) (as shown by the triangular line in Figure 14 as shown therein), such that this restricting element restricts the displacement of the further sensor component 17, in particular by the displacement of the operating element 11. Thereby, the sensor component 16 and the further sensor component 17 are displaced relative to one another or are in the displacement position L15''. Thereby, the switch state S18 is closed or high, as shown in Figure 11 as shown therein, and thereby the speed control device 10 releases the drive system 5. Additionally, thereby the sensor signal S15 is low, as shown in Figure 12 as shown therein, and thereby the speed control device 10 controls the drive system 5 in order to adjust the driving speed v1 to 3.25 km / h, as shown in Figure 14 as shown therein.

[0077] When the operating element 11 is actuated from the operating initial position L11' to the actuation position L11' between the operating initial position L11' and the maximum actuation position L11'', initially the restricting element 25 does not restrict the displacement of the further sensor component 17. Thereby, the sensor component 16 and the further sensor component 17 do not displace relative to one another or are in the sensor initial position L15'. Thereby, the switch state S18 is low and thereby the speed control device 10 locks the drive system 5. Additionally, thereby the sensor signal S15 is high and thereby the speed control device 10 controls the drive system 5 in order to adjust the driving speed v1 to 0, as shown in Figure 14 as shown therein.

[0078] With increasing actuation of the actuating element 11, the limiting element 25 limits the displacement of the further sensor part 17. Thereby, the sensor part 16 and the further sensor part 17 are displaced relative to one another or are in the displaced position L15''. Thereby, the switch state S18 is high and thereby the speed control device 10 releases the drive system 5. Additionally, thereby the sensor signal S15 is low and thereby the speed control device 10 controls the drive system 5 in order to adjust the driving speed v1 to a value between 0, in particular 2 and 3.25 km / h, as Figure 14 shown therein.

[0079] This enables the driving speed v1 to be adjusted to a value less than the adjusted maximum driving speed vmax'', for example for cornering.

[0080] In Figure 7 it, although the limiting element 25 moves or adjusts in such a way, in particular for a maximum driving speed vmax' equal to 4.5 km / h (as Figure 14 shown by the diamond line therein), that the limiting element limits the displacement of the further sensor part 17. But the actuating element 11 is not actuated or is in the initial actuation position L11'. Thereby, the sensor part 16 and the further sensor part 17 are not displaced relative to one another or are in the sensor initial position L15'. Thereby, the switch state S18 is low and thereby the speed control device 10 locks the drive system 5. Additionally, thereby the sensor signal S15 is high and thereby the speed control device 10 controls the drive system 5 in order to adjust the driving speed v1 to 0, as Figure 14 shown therein.

[0081] In Figure 8 it, the actuating element 11 is actuated to the maximum or is in the maximum actuation position L11''. Additionally, the limiting element 25 moves or adjusts in such a way, in particular for a maximum driving speed vmax' equal to 4.5 km / h, that the limiting element limits the displacement of the further sensor part 17. Thereby, the sensor part 16 and the further sensor part 17 are displaced relative to one another to the maximum, in particular possibly maximally or are in the maximum displacement position L15''. Thereby, the switch state S18 is high and thereby the speed control device 10 releases the drive system 5. Additionally, thereby the sensor signal S15 is the lowest and thereby the speed control device 10 controls the drive system 5 in order to adjust the driving speed v1 to 4.5 km / h, as Figure 14 shown therein.

[0082] When the operating element 11 is manipulated from the initial operating position L11' to the operating position L11 within the range between the initial operating position L11' and the maximum operating position L11'', the limiting element 25 already limits the displacement of the further sensor component 17 at the beginning. Thereby, the sensor component 16 and the further sensor component 17 are displaced relative to each other or are in the displaced position L15''. Thereby, the switch state S18 is high and thereby the speed control device 10 releases the drive system 5 for the vehicle. Additionally, thereby the sensor signal S15 is low and thereby the speed control device 10 controls the drive system 5 for the vehicle in order to adjust the driving speed v1 to a value between 0, in particular between 2 and 4.5 km / h, as Figure 14 shown in

[0083] This enables the driving speed v1, in particular, and the maximum driving speed vmax to be adjusted variably, in particular, as Figure 14 shown in

[0084] As shown by at least one of the embodiments described above and illustrated, the present invention provides an advantageous garden implement having improved characteristics.

Claims

1. A garden implement (1), wherein, The garden appliance (1) has: - a controllable travel drive system (5), wherein the travel drive system (5) is configured for the forward movement of the garden appliance (1); and - a speed control device (10), wherein the speed control device (10) has a user-operable operating element (11) and a displacement sensor device (15); - wherein at least one sensor part (16) of the displacement sensor device (15) is supported so as to be translatable; - wherein the operating element (11) is configured, by its actuation, for a translational displacement of at least the sensor part (16); - wherein the sensor signal (S15) of the displacement sensor device (15) is related to the translational position (L15', L15”) of at least the sensor part (16); and - wherein the speed control device (10) is configured to control the travel drive system (5) according to the sensor signal (S15) in order to variably adjust the travel speed (v1) of the garden appliance (1); - wherein the sensor part (16) and a further sensor part (17) of the displacement sensor device (15) are supported so as to be translatable relative to one another; - wherein the sensor signal (S15) is related to the position (L15', L15”) of the sensor part (16) and the further sensor part (17) relative to one another; - wherein the speed control device (10) has a limiting element (25); - wherein the limiting element (25) is configured to limit the translational displacement of the further sensor part (17) in the case of actuation of the operating element (11) for a translational displacement of the sensor part (16) and the further sensor part (17) relative to one another; - wherein the limiting element (25) is movably supported; - wherein the operating element (11) is configured, by its actuation, for a translational displacement of the further sensor part (17); and - wherein the speed control device (10) has a further user-operable operating element (12); - wherein the further user-operable operating element (12) is configured, by its actuation, for moving the limiting element (25) in order to variably adjustably limit the displacement of the further sensor part (17).

2. The garden appliance (1) according to claim 1, - characterized in that, The displacement sensor device (15) has a switch (18); - wherein the switch state (S18) of the switch (18) is related to the position (L15', L15”) of the sensor part (16) and the further sensor part (17) relative to one another; and - wherein the speed control device (10) is configured to release or lock the travel drive system (5) according to the switch state (S18).

3. The garden appliance (1) according to claim 1 or 2, - characterized in that, The displacement sensor device (15) has a linear potentiometer (19); and - wherein, the sensor signal (S15) is the potentiometer signal (S19) of the linear potentiometer (19).

4. The garden appliance (1) according to claim 1 or 2, - characterized in that, the speed control device (10) has an additional limiting element (26); - wherein, the additional limiting element (26) is configured to limit the manipulation of the operating element (11) and / or the displacement of the sensor component (16) in order to limit the relative displacement of the sensor component (16) and the additional sensor component (17) with respect to each other.

5. The garden appliance (1) according to claim 1 or 2, - characterized in that, the limiting element (25) has an eccentric rocker section (27) for variably adjusting and limiting the displacement of the additional sensor component (17) and is rotatably supported.

6. The garden appliance (1) according to claim 5, - characterized in that, when limiting the displacement of the additional sensor component (17), the displacement axis (A17) of the additional sensor component and the surface (O27) of the eccentric rocker section (27) extend substantially orthogonally to each other.

7. The garden appliance (1) according to any one of claims 1 to 2, - characterized in that, the speed control device (10) has a latching mechanism (28); - wherein, the latching mechanism (28) is configured to latch the adjustment of the limiting element (25).

8. The garden appliance (1) according to claim 7, - characterized in that the latching mechanism (28) is spring-elastic.

9. The garden appliance (1) according to claim 7, - characterized in that the latching mechanism (28) has a body spring (29).

10. The garden appliance (1) according to any one of claims 1 to 2, - characterized in that, the additional user-operable operating element (12) is rotatably supported.

11. The garden appliance (1) according to any one of the preceding claims 1 to 2, - characterized in that, the displacement sensor device (15) has a sensor reset element (20); and - wherein, the sensor reset element (20) is configured to force at least the sensor component (16) into the translational sensor initial position (L15').

12. The garden appliance (1) according to any one of the preceding claims 1 to 2, - characterized in that, the displacement sensor device (15) has a sensor reset element (20); and - wherein, the sensor reset element (20) is configured to force the sensor component (16) and the additional sensor component (17) away from each other into the translational sensor initial position (L15').

13. The garden appliance (1) according to any one of the preceding claims 1 to 2, - characterized in that, the operating element (11) is movably supported; - wherein, the speed control device (10) has an operating reset element (21); and - wherein, the operating reset element (21) is configured to force the operating element (11) into the operating initial position (L11').

14. The garden appliance (1) according to any one of the preceding claims 1 to 2, - characterized in that, The operating element (11) is rotatably supported.

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