DE19848086A1 - Roller distributor has container supported by two coaxial runner wheels, with bottom distributor outlets, bolt attachment for wheel axle - Google Patents

Abstract

The manually operated roller-distributor has a container (10) borne on two coaxial runner-wheels (26,28). The base of the container has distributor outlets above which turns the hollow wheel-driven distributor roller (16) which is in constant contact with the one of the two runner wheels. The roller is supported by a wheel axle (14) mounted in the container and which supports the one runner wheel (26). The other runner wheel (28) is joined by a bolt (42) to the wheel axle by insertion into a hole.

Description

The invention relates to a hand-guided roller spreader with one supported by two coaxial wheels Spreading container, which has discharge openings on the bottom, over which a wheel-driven spreader roller rotates and a ver swiveling spreading rail for setting the spread rate is seen.

With such roller spreaders, the spreading material is in the litter container discharged through the rotating roller. Since the Speed of the spreader roller depends on the wheel rotation the spread rate per unit area essentially Lichen regardless of the driving speed of the device.

These roller spreaders are available in two versions represents:

In the first embodiment, the Spreading roller through both impellers by rotating the impellers firmly with the wheel axle carrying the hollow spreader roller are bound.

In the second embodiment, the spreader roller only driven by an impeller, which rotatably with the hollow spreader roller carrying wheel axle is connected while the other wheel is freely rotatable on the wheel axle.

The first embodiment has the advantage that when through the spreader roller still slide through one of the wheels second wheel is driven, creating a smooth off the spreading material is guaranteed when driving straight ahead. When cornering, especially when turning the spreader  when spreading the spreading material in strips, however because of the different curve radius a uniform Delivery of the grit is no longer guaranteed because must necessarily slide one of the wheels. To this unequal Avoiding formality at the reversal points is in the Practice lifting the device and turning it 180 ° before turning turns.

The second-mentioned embodiment has the front partly that the device is also capable of working when cornering, because only one wheel serves as the drive and the other wheel runs freely. The disadvantage is that when through the spreader roller also slides off the driving impeller stops and no even spreading material is discharged is guaranteed.

The production and in particular the storage of two different types of spreader is disadvantageous and The invention is therefore based on the object of being universal usable roller spreader to create the benefits connects both types.

The task is solved by the in the indicator Part of claim 1 specified features.

The invention ensures that one and the same Roller spreader once with unicycle drive and once with Two-wheel drive is usable. Attitude to each because of customer-specific request can be from the seller be carried out, but also by the customer himself, so that the customer of his own accord to unicycle or Two-wheeler operation can take place depending on the because of the area to be sprinkled or depending on the Weather conditions. It may not be the case occur that the customer is annoyed afterwards that  he the spreader of the wrong type or one for his specific circumstances of unsuitable type.

The optional coupling of the bearing rotatable on the wheel axle th impeller can be done by any means. Before according to the invention, a plug-in coupling is added in shape of a plug pin, the holes in Wheel axle or hub of the wheel can be inserted and which is preferably designed as a U-shaped bracket.

According to a further embodiment of the invention with the spreading roller interacting from the Füh tion bracket of the spreader is adjustable, the litter quantity by presetting by means of a screw connection, the is provided with rest positions can be made. A spring guides the locking rail into the closed position back, and the operator can via a switch bracket Transfer the spreading rail to the preset position. It can then, for example, the spreading rail when turning the closed position are transferred, and after The spreading rail can turn back into the starting position be transferred.

Further refinements of the invention result from the Subclaims.

An embodiment of the invention will now be described hand described in the drawing. The drawing shows:

Fig. 1 is an exploded perspective view of the individual parts, which form the roller litter according to the invention in their entirety;

. Figure 2 is a partial perspective view of the impeller can be coupled for rotation with the wheel axle;

Fig. 3 is a broken view of the wheel axis;

Fig. 4 on a larger scale a section along the line IV-IV of FIG. 3;

FIG. 5 shows a view of the wheel axle rotated by 90 ° compared to FIG. 3.

The roller spreader has a spreader 10 which has two opposite openings 12 in the lower part in the side walls for inserting the wheel axle 14 . This wheel axle carries the two-part, hollow litter roller 16 . This spreader roller 16 has at its two ends radial engagement slots 18 into which two inner embossments 20 of the wheel axle 14 engage and establish a rotationally fixed connection between the wheel axle 14 and the spreader roller 16 . The wheel axle 14 carries, via swivel arms 22, a spreading rail 24 which bears against the bottom part of the spreading container 10 and covers the spreading openings located there or releases them in an adjustable manner. By changing the Bowden access length 66 by means of the adjusting screw 68 , the size of these discharge openings can be adjusted, which is activated by the spreading rail 24 .

The wheel axle 14 has on one side an external embossment 30 which engages in a transverse slot 32 in the hub of the impeller 26 , as a result of which the impeller is connected in a rotationally fixed manner to the wheel axle 14 or the spreader roller 16 . A Sicherheitsele element 34 in the form of a split pin is inserted into a radial hole 36 of the wheel axle 14 and secures the impeller 26th Both impellers 26 and 28 carry a wheel cover 38 .

The other impeller 28 can be freely rotated on the wheel axle 14 since the external embossing 30 is missing on this side of the wheel axle. A radial hole 36 is also seen on this side, into which a locking pin 34 can be inserted.

The impeller 28 can optionally be rotatably coupled to the wheel axle. For this purpose, wheel axle 14 and wheel hub have two radial holes 40 which are arranged at an axial distance from one another and into which a driver clip in the form of a U-shaped bracket 42 can be inserted. In the absence of a bracket, the wheel 28 can be freely rotated on the wheel axis, so that the device can also be used advantageously when cornering, in that this wheel 28 runs freely while the other wheel 26 serves as a drive. Two stops 44 are also arranged on the wheel axle.

A lower handle part 46 is inserted into bearing sleeves 48 of the rear container wall and secured by screws 50 . The rear angled ends of the lower handle part 46 can be provided with end plugs 52 . These angled parts are used for support when not in use.

With the lower handle part 46 is connected via screws 54 with wing nut 56 of the upper handle part 58 in a conventional manner.

The spreading rail 24 carries a rear-facing set 60 , to which a fork-shaped bracket 62 is connected, to which a Bowden cable 66 engages via a calibration screw 64 , which is connected to an adjusting screw 68 which is screwed into a threaded bushing 70 . This threaded bushing 70 is mounted in an offset 72 of a switching bracket 74 which is pivotally mounted in the upper handle part 58 . The set screw 68 carries an ergonomically designed wing 76 , with which the set screw 68 can be screwed more or less deeply into the threaded bushing 70 . Between the socket 70 and the adjusting screw 68 , a locking arrangement is seen before, so that a sensitive adjustment is facilitated.

On the spreading rail 24 , a tension coil spring 78 engages on the side opposite the extension 60 , which engages with the other end on the spreading container 10 and tries to pull the spreading rail into the closed position. By pivoting the switching bracket 74 into the stop position on the top handle 58 , the spreading rail is transferred via the Bowden cable 66 into the spreading position, the size of the released discharge openings was previously set by the adjusting screw mechanism 68 , 70 .

Reference list

10th

Spreader

12th

openings

14

Wheel axle

16

Spreader roller

18th

Engagement slots

20th

Knockout

22

Swivel arm

24th

Spreading rail

26

Impeller (fixed)

28

Impeller (detachable)

30th

Embossment

32

Cross slot

34

Locking element (split pin)

36

radial hole

38

Wheel cover

40

radial holes

42

Driving clamp (U-bracket)

44

attack

46

Lower part of the handle

48

Bearing sleeves

50

screw

52

Plug

54

screw

56

Wing nut

58

Top handle

60

approach

62

Bracket

64

Calibration screw

66

Bowden cable

68

Set screw

70

Threaded bush

72

Bend

74

Switch bracket

76

wing

78

Tension coil spring

Claims (8)

1. Walk-behind roller spreader with one of two coaxial wheels ( 26 , 28 ) carried litter container ( 10 ), which has discharge openings on the bottom, over which a wheel-driven spreader roller ( 16 ) rotates and a pivotable spreader rail ( 24 ) is provided for adjusting the spread rate , characterized in that the spreader roller ( 16 ) is constantly in drive connection with one of the two impellers ( 26 ) and can optionally be coupled to the other impeller ( 28 ). 2. roller spreader according to claim 1, characterized in that the hollow spreader roller ( 16 ) rotatably supported by a in the spreader ( 10 ) bearing th wheel axle ( 14 ) which in turn rotatably carries one of the wheels ( 26 ) that the other Impeller ( 28 ) rotates bar on the wheel axle ( 14 ) and that the other impeller ( 28 ) can be connected in a rotationally fixed manner to the wheel axle ( 14 ) by a form-locking bolt ( 42 ). 3. roller spreader according to claim 2, characterized in that the form-locking bolt is designed as a plug pin ( 42 ), the stanchions in aligned Radialboh of impeller hub and wheel axle ( 14 ) can be inserted. 4. roller spreader according to claim 3, characterized in that the socket pin is designed as a U-shaped bracket ( 42 ) which was in two axially from in the wheel hub or the wheel axle ( 14 ) arranged holes ( 40 ) can be inserted. 5. roller spreader, in which the wheel axle with Ver embossments ( 20 ) for positive connection with the spreader roller ( 16 ) is provided, according to one of claims 1 to 4, characterized in that the wheel axle ( 14 ) has a single further external embossing ( 30 ) for positive connection with the one impeller ( 26 ), while the wheel axle is smooth on the opposite side and rotatably carries the impeller ( 28 ). 6. roller spreader according to claim 1, characterized in that the spreading rail ( 24 ) is biased by a spring ( 78 ) in the closed position and that the spreading rail ( 24 ) against the force of the spring ( 78 ) articulated by a on the guide bracket ( 58 ) Switch bracket ( 74 ) can be swung out via a Bowden cable ( 66 ) to adjust the spread rate. 7. roller spreader according to claim 6, characterized in that between the Bowden cable and switching bracket ( 74 ) in a threaded bush ( 70 ) screwed adjusting screw ( 68 ) is provided, the setting of the spreading amount in the final position switching bracket ( 74 ) determines. 8. roller spreader according to claim 7, characterized in that the set screw in predetermined th angular positions can be felt snapped into place.