DE3128479A1 - Hand appliance for dispensing granular or powdery spreading material - Google Patents

Abstract

A hand appliance for dispensing granular or powdery spreading material is constructed in such a way that the spreading material passes out of a spreading-material container into a spreading unit, where it is conveyed into a spreading nozzle (21) by an electrically driven impeller. The electric motor is driven by a battery, and advantageously the essential parts of this hand appliance are arranged coaxially relative to one another. <IMAGE>

Description

Hand-held device for dispensing pithy or powdery

grit.

The invention relates to a TIandgerEt for the delivery of pithy or powdery grit.

For many areas of application, especially in horticulture (for example Pest control) or for sprinkling salt to thaw frozen ones Up to now, it has been common practice to spread the grit in smaller areas or for targeted use either to scatter by hand or, as is the case with delivery of road salt from road vehicles via special facilities, di-e the Spread the grit randomly over larger areas.

For use in the horticultural sector or in the private sector however, it is often desirable not to come into skin contact with the grit, as the spreading material may not have any deleterious effects on the skin surface are to be excluded. The manual spreading of the spreading material also has the disadvantage that the scattering density inevitably, especially in the case of inexperienced people, is not uniform is.

The hand-held device according to the invention therefore sets itself the task of a to enable targeted spreading on smaller areas.

The hand tool according to the invention is designed to solve this problem the arrangement of a grit container, one with this in connection Spreading unit with spreading nozzle and a supply unit connected to it marked.

Such tanning allows economical spreading, since there is no spreading material reaches areas not to be sprinkled, is easy to handle and the operator does not come into skin contact with the grit.

For different applications, different shaker cans with different Exit cross-section can be used, which can be plugged onto the spreading unit.

Further refinements of the invention are related to the sub-claims remove.

An exemplary embodiment of the hand-held device according to the invention is based on explained in more detail by drawings.

They show: FIG. 1: a perspective view of the hand-held device, FIG. 2: a longitudinal section through the hand-held device according to FIG. 1.

The hand-held device consists of 3 structural units, which are essentially coaxial are placed on top of each other: at the bottom there is a supply unit 40 with a battery 50, the housing of the supply unit 40 at the same time serves as a handle.

A scattering unit 20 sits coaxially above the supply unit 40. which in turn is made up of two parts: the lower part takes an electric motor 60 on its drive axle on the one hand on the floor of this lower part and on the other hand is stored in an intermediate floor 80. The bottom of the lower part of the spreader unit 20 is also designed so that on the one hand it acts as an abutment for the battery 50 is used and on the other hand has a flange on which the supply unit.40 can be plugged or screwed on. When the supply unit is firmly attached 40 on this flange 22, the housing of the supply unit 40 is in two parts and Executed clannable, so that the battery 50 can be replaced.

At the lower part of the housing of the spreading unit 20 is still located a switch 61 for operating the electric motor 60.

The upper part of the spreading unit 20 has a pot-shaped housing on, into which the drive shaft 62 of the electric motor 60 through the false floor from below 80 protrudes through, On the drive shaft 62 there is an impeller 30 placed in the pot-shaped housing of the upper part of the spreading unit 20 can move in such a way that a circumferential channel 22 widening in the circumferential direction between the outer ends of the wings 32 and the side wall of the upper part the spreading unit 20 is created. For this purpose, the impeller 30 is off-center in the Housing of the upper part of the spreading unit 20 by means of a hub 31 on the drive shaft 62 of the electric motor 60 is supported.

The wings 32 of the Plilgelrades 30 extend over the outer Circumferential area of the impeller 30, whereas in the area of the hub 31 the blades 32 are interrupted, the cover 24 of the spreading unit has in this interruption area 20, which closes this at the top, a recess.

In the tangential direction to the impeller 30 is on the upper housing part the scattering unit 20 has a connecting piece 25 molded onto it, onto which a scattering fis 21 is attached is.

The exit cross-section of the nozzle 21 is based on grain size and others Coordinated with the properties of the spreading material, know when changing the spreading material various shaker cans 21 are attached to the nozzle 25.

Above the spreading unit 20 there is a gravel container 10, the at its lower end has a passage opening 11, which with the opening of the cover 24 of the spreading unit 20 is congruent.

The two openings (opening of cover 24 and passage opening 11) are constructed in such a way that a bayonet lock is created, that is to say the grit container 10 by rotating through a certain angular range on the Spreading unit 2O can be engaged and disengaged.

Towards the top, the grit container 10 is closed with a cover 70.

IM difference to the central one shown in the exemplary embodiment Fine-icing of the spreading material on the impeller 30 can also be provided for the supply to provide the spreading material in the entrance area of the spreading nozzle 21, which is cien advantage has that then additionally the passage opening 11 of the grit container 10 with a Slider or the like can be opened or closed from the outside.

The hand-held device according to the invention works as follows: After switching on of the electric motor with the switch Orl moves it via its drive shaft 62 the wing wheel 30 in rotation, whereby the sinking from the earthenware container 10 from above Spreading material is thrown outwards and via the nozzle 25 into the spreading nozzle 21 and from there to the outside world.

Claims (8)

Protection claims / P a t e n t a n s p r ü c h e: 1, hand-held device for delivery of Icörnlgem or powdery grit, characterized by the arrangement a spreading material container (10), a spreading unit connected to this (20) with diffuser (21) and a supply unit connected to it (ho). 2. Hand tool according to claim 1, characterized in that the spreading unit (20) has a pot-shaped housing in which an impeller (30) is mounted, which is driven by an electric motor (60). 3. Hand tool according to claim 2, characterized in that the impeller (30) is mounted eccentrically in the housing, so that a widening circumferential channel (22) is formed to the tangentially extending scattering nozzle (21). 4. Hand tool according to claim 1, characterized in that in the ground of the grit container (lo) is a passage opening (11) for the grit, which is about the hub (31) of the impeller (3o) is located, and that the blades (32) are interrupted there are. 5. Hand tool according to claim 1, characterized in that in the ground of the grit container (lo) is a passage opening for the grit, which is in the entrance area the StreudS5se (21) is located and can be closed from the outside, 6. Hand tool according to claim 1, characterized in that the supply unit (40) has a battery (50) in having coaxial arrangement with the electric motor (60). 7. Hand tool according to claim 1, d a d u r c h g e k e n n z e i c h n e t that the scattering nozzle (21) on a nozzle formed on the scattering unit (20) (25) is attached in a pluggable or rotatable manner. 8. Hand tool according to claim 1, characterized in that the grit container (10) is attached to the spreading unit (20) by means of its Badonett closure.