GB2544160A

GB2544160A - Hand-held spreading apparatus

Info

Publication number: GB2544160A
Application number: GB1615237.3A
Authority: GB
Inventors: Reka Szabados Anna; Zador Endre; Sepsi Krisztian; Szatmari Zoltan
Original assignee: Robert Bosch GmbH
Current assignee: Robert Bosch GmbH
Priority date: 2015-09-08
Filing date: 2016-09-08
Publication date: 2017-05-10
Also published as: GB201615237D0; CN106982655A; DE102015217136A1; CN106982655B

Abstract

A hand-held spreading apparatus (10) comprising a medium receiving tank (14) and a spreading unit (16) to convey the medium within the receiving tank in at least one state. The spreading unit can comprise of a medium conveying element (26) and/or a medium spreading element (28), which can be formed from an elastically deformable material such as rubber. The apparatus also comprises a connecting unit (18) and a drive connection element (20) which couples with an output unit (24) of a portable machine tool (12) to drive the spreading unit. The medium receiving tank can comprise a filling opening (15) with a safeguarding element (90). The receiving tank can also take the form of a hopper. The drive connection element can be a positively locking coupling element. The portable machine tool could come in the form of a power tool, drill or garden device. The medium which is being spread could be comprised from fertiliser, seeds or chemicals. A system is also provided comprising the portable machine tool and the spreading apparatus.

Description

Hand-held spreading apparatus Prior art

According to US 7328861 B2, a motor-operated hand-held spreading apparatus which presents a medium receiving tank and a spreading unit for conveying a medium placed in the medium receiving tank in at least one state is already known.

Disclosure of the invention

The invention is based on a hand-held spreading apparatus, in particular a garden equipment hand-held spreading apparatus with at least a medium receiving tank and with at least a spreading unit for conveying a medium placed in the medium receiving tank in at least one state, in particular in a driven state of the spreading unit.

It is proposed that the hand-held spreading apparatus presents at least a connecting unit which, to drive the spreading apparatus, comprises at least a drive connection element to a drive coupling of the spreading unit with an output element of an output unit of a portable machine tool. The hand-held spreading apparatus is particularly preferably developed mechanically decoupled from a motor- operated, in particular electric drive unit to drive the spreading unit. The hand-held spreading apparatus thus uses a drive unit, connected to the output unit, of the portable machine tool to drive the spreading unit preferably in a state disposed on the portable machine tool. The output element can herein be developed as an output spindle, as an output toothed wheel, as an output positive-locking coupling element etc. It is, however, also conceivable that the output element is formed from an output element disposed on a rotor shaft of the drive unit. The output unit can be developed as a gear unit separate from the drive unit or as an assembly of the drive unit. The expression "connecting unit" should here define in particular a unit by means of which a housing of the handheld spreading apparatus can be attached in a positivelocking manner and/or non-positive-locking manner on a tool holder of a portable machine tool.

The hand-held spreading apparatus can preferably be used for distributing spreading material on open spaces, preferably vegetation areas such as for example meadows, fields, gardens or beds, or roads and areas of snow or ice or the like with a medium, in particular with a spreading material in the form of powder, granular material, seeds, pellets or the like which for example can comprise fertilisers, seeding material, pesticides, herbicides, fungicides, insecticides, chemicals, salt etc. Other application possibilities appearing meaningful to a person skilled in the art are likewise conceivable. Use as a spraying apparatus, in particular for distributing liquid media and/or as a blowing apparatus, in particular for the primary distribution of media with a gas stream, in particular in the form of air, however, is not provided. By at least one state should be understood in particular the operating state or a driven state of the hand-held spreading apparatus.

The term "medium receiving tank" should here define in particular a container for transporting and/or for receiving a medium, in particular a dry substance such as for example spreading material or the like, wherein the container is developed in particular in the form of a hopper, preferably partly covered and/or completely coverable for example with a cover, as a result of which the medium remains protected against moisture to the greatest possible extent. The medium receiving tank is particularly preferably limited by housing walls of a housing of the hand-held spreading apparatus. The medium receiving tank hereby preferably limits a medium receiving volume for storing and/or for receiving the medium. By "spreading unit" should be understood here in particular a unit, in particular a work machine, which is provided to convey and/or to distribute media, in particular spreading material, by means of converting drive energy to kinetic energy. By "provided" should be understood in particular presented and/or furnished.

The spreading unit preferably comprises at least a medium conveying element and/or medium distributor element or medium spreading element. The medium conveying element is herein preferably developed as a spreading material conveying element, conveying screw, conveying paddle, mixer or the like and the medium distributor element preferably as a spreading material distributor element, centrifugal disc, centrifugal paddle or the like.

The housing of the hand-held spreading apparatus preferably encloses at least as far as possible the spreading unit and preferably forms the medium receiving tank and a medium discharge housing which is preferably developed integral with the medium receiving tank. A "drive coupling" should here define in particular a connection of the drive connection element to an output element, such as for example a spindle etc. of the portable machine tool to transfer drive forces of a drive unit of the portable machine tool. By a "portable machine tool" should be understood here in particular a machine tool which can be transported by an operator, just like the hand-held spreading apparatus, without a transport machine.

The portable machine tool and the hand-held spreading apparatus present in particular a weight that is less than 20 kg, preferably less than 10 kg and particularly preferably less than 2 kg. The portable machine tool is particularly preferably developed as an electrically operable garden device; however, it can also be driven by combustion engine, pneumatically or hydraulically or the like. However, it is also conceivable that the portable machine tool presents a different configuration appearing meaningful to a person skilled in the art, such as for example a configuration as a multi-function machine tool, as a drilling machine etc. By garden device are to be understood for example at least grass shears, hedge shears, branch shears, a multi-function garden device in particular with exchangeable attachment, a trimmer or the like. A compact hand-held spreading apparatus which is developed in particular decoupled from an electric drive unit can advantageously be achieved by means of the particular configuration of the hand-held spreading apparatus. Parts can thus advantageously be saved and a hand-held spreading apparatus with a low weight can advantageously be provided. In addition, a portable machine tool can advantageously be used to drive the spreading unit, as a result of which high application flexibility can be achieved.

It is further proposed that the drive connection element is developed as a positive-locking coupling element which is connected to the spreading unit, in particular to at least a connecting shaft and/or the medium conveying element and/or the medium spreading element, preferably developed as a spreading disc, of the spreading unit to drive it/them. It is, however, also conceivable that the drive connection element presents a different configuration, such as for example a configuration as a non-positive-locking coupling element. The drive connection element particularly preferably comprises at least an extension and/or at least a recess, either one of which can be positively connected to an output element, developed corresponding to the drive connection element, of an output unit of the portable machine tool. The output element thus preferably comprises recesses and/or extensions developed corresponding to the extension and/or recess of the drive connection element. A connection to drive the spreading unit can be achieved constructively simply by means of the configuration according to the invention.

The drive connection element can present at least a positive-locking area for connecting to the spreading unit which is connected to at least the connecting shaft and/or the medium conveying element and/or medium spreading element. The parts of the spreading unit can also further present connecting areas of this type below one another. The positive-locking area of the drive connection element engages particularly preferably in the connecting shaft and other positive-locking areas on the connecting shaft connect this to the medium conveying element and/or medium spreading element. It is, however, also conceivable that the connecting shaft and/or the medium conveying element and/or medium spreading element presents a different connection configuration, such as for example a configuration as a friction-locking or material-locking area etc. A safe connection to reliably drive the spreading unit can be advantageously achieved by means of the configuration according to the invention. In addition, a rotation-resistant connection to drive the spreading unit can be advantageously achieved.

In addition, it is proposed that the hand-held spreading apparatus comprises at least a housing on which is disposed at least a latch element of the connecting unit to positively and/or non-positively connect to a tool holder of the portable machine tool. The latch element is preferably developed as a latch recess into which at least a counter-latch element, developed as a latch hook, of a fixing unit of the portable machine tool engages in at least one state. It is, however, also conceivable, that the latch element presents a different configuration such as for example a configuration as a latch hook. A safe attachment of the hand-held spreading apparatus to the portable machine tool can advantageously be achieved.

Moreover, it is proposed that the connecting unit comprises at least a coding element which is provided to actuate a switch element of the portable machine tool in at least one state. The coding element is preferably developed as a pin or bolt. The coding element herein actuates, preferably in a state disposed on the portable machine tool, a microswitch of the portable machine tool which, via an electronic unit of the portable machine tool, changes the portable machine tool to an operating mode which is suitable for driving the spreading unit. A speed, a direction of rotation of the output element and/or other parameters of the portable machine tool are herein adapted to operate the spreading unit. Overloading and/or faulty assembly of the hand-held spreading apparatus can advantageously be avoided. The coding element can, however, also comprise a communication module such as for example RFID, NFC or even WLAN or the like which communicates with a corresponding transmitter on the machine tool side and/or receiver to control or regulate a control or regulating unit of the machine tool and/or hand-held spreading apparatus .

It is further proposed that at least part of the spreading unit, in particular at least part of the medium conveying element and/or the medium spreading element, is formed of elastically deformable material, in particular rubber-elastic material, preferably rubber. By "elastically deformable" should be understood in particular elastically deformable by mere manual force and/or at least partly due to the medium to be conveyed or spread. Wear to the spreading unit, in particular on the medium conveying element and/or the medium spreading element caused by the spreading material having moved, can advantageously be avoided by this. In particular, abrasion wear or the like to the spreading unit in particular with the use of salt or fertiliser or the like can be at least reduced. The generation of dust by the hand-held spreading apparatus which for example can damage the health of a user, particularly in the distribution of chemical or pesticide spreading material or the like can also be advantageously reduced by the elastically deformable parts of the spreading unit. Potential blocking or jamming of the spreading unit, for example due to spreading material catching, can thus also be reduced.

In addition to this, it is proposed that at least a spreading material conveying element or spreading material distributor element disposed on the at least medium conveying element and/or medium spreading element is developed elastically deformable, in particular rubber-elastically deformable. By spreading material conveying element or spreading material distributor element should be understood in particular stirrer- and/or paddle-like objects which are preferably disposed bent and/or orthogonal to a base area, to a surface, to an annular surface or the like of the medium conveying element and/or the medium spreading element. They are preferably developed integral with the medium conveying element and/or medium spreading element. Advantageously, the risk of injury, for example by inadvertent touching of the spreading material distributor element by a hand or a finger of the user or the like, can be reduced as a result of this.

Moreover, it is proposed that the medium spreading element of the spreading unit presents at least on one side, preferably on a side facing towards the medium receiving tank, a pitch directed substantially in particular radially outwards from a centre of the medium spreading element. A preferred pitch angle is herein > 0° to 10°, preferably 3°.

Advantageously, the projection or spreading range of the hand-held spreading apparatus can thereby be increased. In addition, the pitch constitutes protection against loss of spreading material when the hand-held spreading apparatus is not in operation because the spreading material, due to gravity, collects in the centre of the medium spreading element, the axis of rotation of which is oriented in a basic position typically orthogonal to the surface of the ground or to the area being covered.

It is further proposed that at least the medium receiving tank is formed from a transparent or partially transparent material, preferably a partially transparent plastic. This is thus at least partially permeable to visible light, as a result of which a filling level and/or the type of filled medium or spreading medium in the medium receiving tank can be checked in a simple manner. In addition, a position or the cause of a potentially occurring blockage of the spreading apparatus disposed at least partially in the medium receiving tank can be located in a simple manner and its state checked at any time without dismantling and/or destroying. The convenience of operation and/or maintenance of the hand-held spreading apparatus can hereby advantageously be increased.

In addition to this, it is furthermore proposed that the medium receiving tank, in particular in the area of a filling opening, presents at least a medium loss safeguarding element, preferably a tipping-out safeguarding element. The medium loss safeguarding element is preferably a receiver apparatus for a connecting element, in particular in the form of a screw, a rivet or the like for connecting the housing or medium receiving tank preferably assembled at least in two parts. The medium loss safeguarding element is disposed preferably at least partially on the inner surfaces of the medium receiving tank in the area of the filling opening.

It is moreover proposed that the medium receiving tank is constructed substantially in the form of a hopper, is preferably locked in a partial cover manner in the area of the connecting unit and preferably the area, locked in a partial cover manner, of a filling opening of the medium receiving tank for refilling spreading material is protruded. By "protruded" should be understood in a vertical direction which is defined by the axis of rotation of the spreading apparatus above the locked area. It should further also be understood as overlapping of the locked area. In the state of the hand-held spreading apparatus connected to the machine tool, the filling opening or the medium receiving tank thus at least partially surrounds or encases the machine tool at least partially in a radial direction. Advantageously, the receiving volume of the medium receiving tank can as a result of this be improved with an ergonomic and compact construction of the hand-held spreading apparatus, in particular in conjunction with the machine tool driving the hand-held spreading apparatus.

It is further proposed that a discharge opening of the hand-held spreading apparatus presents an opening angle disposed asymmetrically to the parting plane with regard to a parting plane of housing halves of the spreading apparatus or medium receiving tank, wherein the total opening angle is in particular 90° to 120°. The asymmetry is preferably selected in such a way that at least two thirds of the opening angle of the discharge opening is moved to one side of the parting plane of the housing halves. Advantageously, the spreading material can thus be distributed based on a typical retaining position of the hand-held spreading apparatus substantially to one side, in particular based on a direction of movement of a user.

In addition to this, it is proposed that the hand-held spreading apparatus presents a conveyed volume adjusting unit, in particular in the form of an adjustable locking unit for locking a conveying opening or an outlet opening in particular in the base area of the hopper-shaped medium receiving tank. The conveyed volume adjusting unit can be for example a locking unit, developed as a perforated disc, that can be moved in a rotatory and/or translatory manner in the area of the conveying or outlet opening, changing the opening cross-sectional area thereof. It can, however, also be an apparatus changing a speed of the machine tool, of the spreading unit or of the medium conveying element and/or medium spreading element, such as for example a rotating wheel, a preferably adjustable gear or the like. Advantageously, at least a conveyed volume and/or a projection range of spreading material can be adjusted by this. In addition, the hand-held spreading apparatus is adjustable to different spreading material sizes and/or spreading material densities depending on the spreading material area to be covered.

Furthermore, the invention is based on a machine tool system with at least a portable machine tool and with at least a hand-held spreading apparatus according to the invention. A high level of operating convenience can advantageously be achieved by means of the configuration according to the invention. In addition, a large application area for the portable machine tool can be achieved.

The hand-held spreading apparatus according to the invention and/or the machine tool system according to the invention should herein not be restricted to the application and embodiment described above. In particular, the hand-held spreading apparatus according to the invention and/or the machine tool system according to the invention can present a number of individual elements, parts and units differing from a number named herein for fulfilling a mode of operation described herein.

Drawing

Other advantages emerge from the following drawing description. The drawings show an embodiment of the invention. The drawings, the description and the claims comprise numerous features in combination. The person skilled in the art will also usefully consider the features individually and combine to meaningful other combinations.

The drawings show:

Fig. 1 a schematic representation of a first exemplary embodiment of a machine tool system with a portable machine tool and with a hand-held spreading apparatus according to the invention Fig. 2 a schematic representation of a sectional view of the hand-held spreading apparatus according to the invention

Fig. 3 a schematic representation of a detail view of a conveyed volume adjusting unit of the hand-held spreading apparatus according to the invention Fig. 4 a schematic sectional view of a detail view of a medium spreading element of the hand-held spreading apparatus according to the invention Fig. 5 a schematic top view of a machine tool system according to the invention with a portable machine tool and with a hand-held spreading apparatus according to the invention and Fig. 6 a representation as an exploded drawing of a second exemplary embodiment of the hand-held spreading apparatus .

Description of the exemplary embodiments

Figure 1 shows a machine tool system 60 according to the invention with at least a portable machine tool 12 and with at least a hand-held spreading apparatus 10 according to the invention. The portable machine tool 12 is developed as an electrically operable garden device. The portable machine tool 12 herein presents a machine tool housing 62. The machine tool housing 62 encloses a drive unit 64 and an output unit 24 of the portable machine tool 12. The drive unit 64 is developed as an electric motor unit. The output unit 24 is developed as a gear unit which is provided to increase and/or decrease a drive moment and/or a drive speed of the drive unit 64. It is, however, also conceivable that the portable machine tool 12 is developed decoupled from the output unit 24 or that the output unit 24 transfers a drive moment and/or a drive speed of the drive unit 64 without increasing and/or decreasing. The output unit 24 comprises at least an output spindle 66 and an output element 22 disposed resistant to rotation on the output spindle 66. The output element 22 is developed as a positive-locking coupling element. The output element 22 herein comprises extensions which extend at least substantially parallel to an axis of rotation of the output spindle 66.

The hand-held spreading apparatus 10 for the portable machine tool 12 presents at least a medium receiving tank 14 and at least a spreading unit 16 (cf Figure 2) for conveying a medium placed in the medium receiving tank 14 in at least one state. The hand-held spreading apparatus 10 further presents at least a connecting unit 18 which comprises at least a drive connection element 20 to a drive coupling of the spreading unit 16 with the output element 22 of the output unit 24 of the portable machine tool 12 to drive the spreading unit 16. The spreading unit 16 is thus driven in a state of a housing 32 of the hand-held spreading apparatus 10 disposed on a tool holder 42 of the portable machine tool 12 by means of the drive connection element 20. In addition, the hand-held spreading apparatus 10 or the housing 32 of the hand-held spreading apparatus 10 can be attached to the portable machine tool 12 by means of the connecting unit 18. The hand-held spreading apparatus 10 hereto comprises at least the housing 32 on which at least a latch element 34, 36, 38, 40 of the connecting unit 18 to a positive-locking and/or nonpositive-locking connection with the tool holder 42 of the portable machine tool 12 is disposed. In total, the connecting unit 18 presents four latch elements 34, 36, 38, 40 disposed on the housing 32. It is, however, also conceivable that the connecting unit 18 presents a different number of latch elements 34, 36, 38, 40. The latch elements 34, 36, 38, 40 are developed as latch recesses which act in combination to attach the housing 32 to the tool recess 42 with counter-latch elements 68, 70 of a fixing unit 72 of the portable machine tool 12 (Figure 1 shows only two counter-latch elements 68, 70). The counterlatch elements 68, 70 are developed as spring-loaded latch hooks which in a state of the housing 32 disposed on the tool holder 42 engage in the latch elements 34, 36, 38, 40 developed as latch recesses. The fixing unit 72 comprises an operating element 74 to loosen a connection of the latch elements 34, 36, 38, 40 and the counter-latch elements 68, 70. The spring-loaded counter-latch elements 68, 70 are herewith movable in a manner already known to a person skilled in the art against a spring force from the latch elements 34, 36, 38, 40 developed as latch recesses.

The drive connection element 20 is developed as a positivelocking coupling element which is connected at least indirectly via a connection point 21 to a medium conveying element 26 and a medium spreading element 28 of the spreading unit 16 (Figure 2) . The spreading unit 16 can likewise be developed as a single piece or multiple pieces. The drive connection element 20 is developed corresponding to the output element 22. The drive connection element 20 comprises gable roof-like connecting teeth which engage in a state of the housing 32 of the hand-held spreading apparatus 10 disposed on the portable machine tool 12 recesses of the output element 22 developed corresponding to the connecting teeth of the drive connecting element 20. The output element 22 is connected in a state of the housing 32 disposed on the tool holder 42 and fixed on the tool recess 42 by means of the connecting unit 18 in a positive-locking manner along a direction of rotation 76 of the output element 22 with the drive connection element 20. The output element 22 and the drive connection element 20 are thus connected to one another resistant to rotation in a state of the housing 32 disposed on the tool holder 42 and fixed to the tool holder 42 by means of the connecting unit 18.

Moreover, the connecting unit 18 comprises at least a coding element 44 which is provided to actuate in at least one state a switch element 46 of the portable machine tool 12. The coding element 44 is developed as a coding pin which is disposed on a side of the housing 32 facing away from the filling opening 15 of the hand-held spreading apparatus 10. The coding element 44 is herein disposed in a connecting area of the housing 32. In a state of the housing 32 disposed on the portable machine tool 12, the coding element 44 actuates the switch element 46 disposed in the area of the tool holder 42. The switch element 46 is developed as a microswitch. As a result of an actuation of the switch element 46, the portable machine tool 12 is switched to a hand-held spreading apparatus operating mode by means of an electronic unit (not represented here in greater detail) of the portable machine tool 12. A direction of rotation, a speed and other parameters of the portable machine tool 12 appearing meaningful to a person skilled in the art are adjusted on driving the spreading unit 16 by means of the output element 22.

The hand-held spreading apparatus 10 further comprises at least a medium loss safeguarding element 50 which makes it difficult to tip spreading material out of the medium receiving tank 14 in at least one state. The medium loss safeguarding element 50 is developed as a bulge on the inner housing wall 32 in the edge area of a filling opening 15. It further serves as receiving and retaining elements of a connecting element to connect two halves 94 of the housing 32 of the hand-held spreading apparatus 10. It is, however, also conceivable that the medium loss safeguarding element 50 presents a different configuration, such as for example a configuration as edge cap or in particular removable cover that can lock the filling opening 15 for example positively and/or frictionally, which sits on the filling opening 15, in particular is fixed thereon so that unintentional emptying of the medium receiving tank 14 in at least one state can be prevented.

Fig. 2 shows a sectional view along a parting plane 92 according to Figure 1 of the housing 32, constructed from the two housing halves 94, of the hand-held spreading apparatus 10 and the spreading unit 16 received in the housing 32 and the drive connection element 20. The medium receiving tank 14 is constructed in the form of a hopper, wherein a filling opening 15 projects vertically from the area of the connecting unit 18 in the direction of an axis of rotation formed by the connecting shaft 21 and also transversely thereto the connecting unit is covered at least partially by the filling opening 15 or part of the medium receiving tank 14. The hopper-shaped medium receiving tank 14 is locked in the area of the connecting unit 18 by the housing 32 so that the hand-held spreading apparatus 10 can only be filled with spreading material, not shown, via the filling opening 15 removed therefrom. The drive connection element 20 is mounted in the area of the connecting unit 18 by a groove-shaped plain bearing in the housing 32. A plurality of screw slots 52 which are provided to receive screws 98 (Figure 6) which connect the housing halves 94 are disposed in the area of the parting plane 92 on the housing half 94. The screw slots 52 extend within the housing 32 in each case up to the parting plane 92 of the housing halves 94. On the outer sides of the housing are developed correspondingly admitted screw through-holes. The screw slots 52 are supported by ribs on the housing 32 which brace the structure of the housing 32.

The connecting shaft 21 disposed for the transfer of force between the drive connection element 20 and the medium conveying element 26 and the medium spreading element 28 is turnably received at least partially within the medium receiving tank 14 and a discharge housing 35 developed integral with the housing 32. The connecting shaft 21 is received together with a bearing in the area of the connecting unit at least through a receiving recess in a partition wall 23 between the medium receiving tank 14 and the discharge housing 35 and advantageously a base area of the discharge housing 35 limiting the discharge housing 35 outwards. The connecting shaft 21 presents in at least a middle section a cross-shaped cross-section, as a result of which blending of the spreading material can advantageously be achieved on rotation of the shaft. Corresponding to a cross-shaped end section of the connecting shaft 21, the drive connection element 20 presents a corresponding positively-locked area 30a through which in the connected state at least a transfer of power between the drive connection element 20 and the connecting shaft 21 is achieved. In addition to this, the connecting shaft 21 presents a further positively-locked area 30b developed as a toothed shaft in order to drive the medium conveying element 26 provided with a corresponding internal gearing. In a third positively-locked area 30c of the connecting shaft 21 developed as partially flattened, the medium spreading element 28 provided with a likewise flattened hole receiver is driven by the connecting shaft 21.

The medium conveying element 26 is developed as a spreading material conveying element or spreading material distributor element in the form of a mixing wheel or paddle wheel 27. The medium conveying element 26 conveys the spreading material not shown as a result of a displacement and/or blending acting in combination with the gravity acting on the spreading material through an outlet opening 25 of the medium receiving tank 14. The medium conveying element 2 6 can also be developed as a conveying screw or the like. It conveys the spreading material in a manner already known to the person skilled in the art to the medium spreading element 2 8 (Figures 2 and 3) . The outlet opening 25 which is disposed in the partition wall 23 can be adjustably locked by a conveyed volume adjusting unit 29. The conveyed volume adjusting unit 29 is a turnable disc with a preferably oval opening eccentrically received around the connecting shaft 21. It is disposed in a grooveshaped recess of the housing 32 between the partition wall 23 and the medium spreading element 28 and presents an adjusting lever 31 which projects outwards through a recess in the housing 32 of the hand-held spreading apparatus 10.

The medium spreading element 28 is developed as a spreading disc and presents a round plate-like shape. A surface 54 of the spreading disc turned towards the medium conveying element 26 passing from the centre 96 of the spreading disc lying on the axis of rotation, directed radially outwards presents a pitch with a pitch angle a which is preferably 3° (Figure 4) . Spreading material distributor elements 33 are further disposed on the surface 54 of the spreading disc. They are removed substantially orthogonally from the surface 54 of the spreading disc and are preferably developed as curved paddle elements developed in particular integral with the spreading disc. Further, the spreading material distributor elements 33 are formed from elastically deformable, rubber-type material so that they twist or distort elastically pliably when touched for example by a user. The spreading disc itself and the medium conveying element 26 and/or other parts of the spreading unit 16 can also be developed elastically deformable.

Figure 5 further shows the discharge opening 90 of the hand-held spreading apparatus 10. It is developed asymmetrically based on the parting plane 92 of the housing halves 94 of the housing 32 of the hand-held spreading apparatus 10. Based on the parting plane 92, a discharge opening angle β extends at least two thirds at angle φ to one side of the parting plane 92 and at the remaining angle ε to the other side of the parting plane 92. A preferred discharge opening angle β is around 100°, wherein the angle division based on the parting plane 92 is preferably 30° on one side and 70° on the other (Figure 5).

Figure 6 shows an exploded view of a further configuration of the hand-held spreading apparatus 10. Unlike the first embodiment, the shaft 21 is additionally mounted inside the medium receiving tank 14. Supports in the intermediate area between the medium receiving tank 14 and discharge housing 35 which are shown in the first exemplary embodiment, however, do not apply. Further, screw slots 52 are disposed at points differing from the first exemplary embodiment.

The medium spreading element 28 does not present a pitch, only a flat surface 54. All other elements correspond to the first exemplary embodiment and are correspondingly marked.

Claims

1. Hand-held spreading apparatus (10), in particular garden equipment hand-held spreading apparatus, with at least a medium receiving tank (14) and with at least a spreading unit (16) for conveying a medium placed in the medium receiving tank (14) in at least one state, characterised by at least a connecting unit (18) which to drive the spreading unit (16) comprises at least a drive connection element (20) to a drive coupling of the spreading unit (16) with an output element (22) of an output unit (24) of a portable machine tool (12).

2. Hand-held spreading apparatus (10) according to one of the preceding claims, characterised in that the drive connection element (20) is developed as a positivelocking coupling element which is connected to the spreading unit (16), in particular to at least a medium conveying element (26) and/or at least a medium spreading element (28) of the spreading unit (16), to drive it.

3. Hand-held spreading apparatus (10) according to the preamble of claim 1, in particular according to one of the preceding claims, characterised in that at least part of the spreading unit (16), in particular a medium conveying element (26) and/or a medium spreading element (28), is formed from elastically deformable material, in particular rubber-elastic material, preferably rubber.

4. Hand-held spreading apparatus (10) according to one of the preceding claims 2 or 3, characterised in that at least a spreading material conveying element or spreading material distributor element disposed on the at least a medium conveying element (26) and/or medium spreading element (28) is developed elastically, in particular rubber-elastically deformable.

5. Hand-held spreading apparatus (10) according to one of claims 2 to 4, characterised in that the medium spreading element (28) of the spreading unit (16) presents at least on one side, preferably on a side facing towards the medium receiving tank (14), substantially a pitch () directed in particular radially outwards from a centre (96) of the medium spreading element (28).

6. Hand-held spreading apparatus (10) according to the preamble of claim 1, in particular according to one of the preceding claims, characterised in that at least the medium receiving tank (14) is formed from a transparent or partially transparent material.

7. Hand-held spreading apparatus (10) according to one of the preceding claims, characterised in that the medium receiving tank (14), in particular in the area of a filling opening (15), presents at least a medium loss safeguarding element (90).

8. Hand-held spreading apparatus (10) according to one of the preceding claims, characterised in that the medium receiving tank (14) is constructed substantially in the form of a hopper, preferably in the area of the connecting unit (18) is locked in the form of a part cover and preferably the connecting unit (18) projects in particular vertically from a filling opening (15) of the medium receiving tank (14) for refilling spreading material and/or is encased radially.

9. Machine tool system with at least a portable machine tool (12) and with at least a hand-held spreading apparatus (10) according to one of the preceding claims .