WASHING APPARATUS, ESPECIALLY FOR CATTLE
This invention relates to a washing apparatus, especially for cattle, comprising a rotary brush at one end of a long, tubular, pressure water carrying apparatus body having two grips and a swivel intermediately coupled between the rear grip and a connector to be coupled to a water supply hose.
When washing cows, the fur is first sprayed with tepid water added liquid soap. Thereafter, the cows are washed with a washing apparatus of the above-defined general type, wherein the rotary brush, preferably, is shaped and designed such that it iε rotated by means of the pressure water supplied thereto (water pressure e.g. 30 bars) . The water and the rotation of the brush remove loose hairs, manure, dust and old fat, simultaneously stimulating the skin to favour new growth of fur and fat production.
Use of conventional high pressure washers where the rotary brush is attached to a conventional support element (a so- called "pike" or lance) , results in very inconvenient and unfortunate working positions for the cattleman.
Especially loaded are wrist and forearm at the rear grip in relation to the rotatable washing brush, and too large shoulder loads occur particularly when washing the back portion of the animal.
Working positions where the hands are located at a higher
level than shoulder level should be avoided, and the upper part of the arm should not be extended beyond a 30° position in relation to the body of the cattleman. These inconvenient and undesired loads and unfavourable working positions are difficult to avoid. They are substantially due to the manipulations offered to the cattleman by the elongated pressure water conveying pipe, the "pike" or lance, during the handling of the washing apparatus.
Therefore, it has been an object of the present invention to provide a washing apparatus of the kind defined introductorily, where the shaping and designing of the two grips reduce the loading on wrists, the forearms and the upper arms as well as shoulders in that the grip shaping and designing according to the invention permit convenient hand and arm positions in the various positions of the washing apparatus during the washing of the different parts of the body of the animal.
This object is realized through shaping and designing a washing apparatus, especially for cattle, in accordance with the characterizing clause of claim 1. Subordinate, advantageous features and embodiments are defined in the subsequent, dependent sub claims.
A rear grip in relation to the rotary brush is extending laterally relative to said pressure water conveying pipe and is disposed in front of said swivel. This rear grip may consist of a lateral part attached to a first enlongate pipe (an internal pipe) extending forwardly to the rotary brush, or this rear grip may, alternatively, be tubular and exhibit one or two laterally projecting parts or portions. Thus, this rear grip may have the form of a substantially rounded pipe portion bended into Z-shape.
The front grip is formed by a second, external pipe which surrounds the first, internal, water carrying pipe, the two pipes being concentrical and relatively rotatable. Besides
the typical, lateral, rear grip, the washing apparatus, thus, comprises said front grip which, upon rotation of the first, water carrying, internal pipe with the rotary brush, is kept non-rotatably with one hand, thus serving as a rotational bearing for the internal pipe carrying the brush. This results in very convenient and comfortable working positions for hands and arms when operating the washing apparatus. Here, the alternative would have been to grip the rotatable, first, internal pipe directly with one hand, the hand having to change its grip upon each altered orientation of the washing apparatus. This is inconvenient and disadvantageous. The rotational axis of the brush may form an angle in relation to the axis of the pressure water carrying pipe differing from 90°.
The rear end of the swivel is coupled to a rear angled pipe having a connector to be coupled to a pressure water supply hose. Downstream of the connector, a cock has been disposed in the form of a check valve. Bend, cock and connector do not participate in the rotation of the forwardly positioned water carrying pipe (in front of the swivel) . The shaping, design and stationary positions of these parts prevent simultaneously that the hand holding the rear grip is subjected to extra load upon the rotation of the "pike" (lance = long shaft) .
A non-restricting example of an embodiment is further explained in the following, reference being made to the attached diagrammatical drawings, wherein:
Figure 1 shows a top plan view of a washing apparatus of the invention, where a rear grip is shaped in accordance with a first embodiment;
Figures 2 and 3 show top plan views corresponding to figure
1 and illustrate 180° rotation of the rear grip, where the positions of the hands are maintained without being subjected to
twisting, torsion or other loads, the right upper part of the arm as well as the right forearm having changed insignificantly from the working position of figure 2 to the working position of figure 3, or vice versa, without creating strains in arm or wrist;
Figure 4 corresponds to figure 1, but shows another embodiment of the rear grip, namely in the form of a lateral part rigidly connected to the internal, pressure water carrying pipe.
First, reference is made to the embodiment according to figures 1 - 3: A washing brush 10 rotatable as previously known is disposed at the free end of a first, water conveying pipe 12 extending rearwardly to a tubular grip 1 , which may be formed in one piece with said first, water carrying, inner pipe 12, or the grip and the pipe may be attached to each other. The various special embodiments of the grip 14 will be further explained later.
The rotational axis 0 of the brush 10 may form an angle α in relation to the axis A of the water carrying pipe 12 differing from 90°, figure 1. Thus, one may be positioned at some distance from the animal when washing e.g. the side portions thereof.
The inner pipe 12 is concentrically surrounded by an external pipe 16, the pipes 12 and 16 being relatively rotatable about a common longitudinal axis A.
The brush itself 10 may be disposed on a not shown washing or spraying head rigidly attached to the inner pipe 12 and carries the brush 10, forming the bearing and support therefore.
The rear end of the tubular grip 14 is coupled to a swivel 18 connected to an angled pipe piece or bend 20 carrying a cock
22 in the form of a check valve and a connector 24 connected thereto and adapted to be coupled to a water supply hose. Because of the swivel 18, the bend 20, the cock 22 and the connector 24 do not participate in the rotational movements of the internal, water carrying pipe 12 allotted thereto from the rear grip 14.
The front grip is formed by the second, external pipe 16 which may be coated with or consist of the same insulating material as the grip portion 14. The outer pipe 16 is kept unrotatably, firmly in one hand, forming a rotational bearing for the inner pipe 12 which, upon rotation thereof, causes a change of the attacking angle of the brush 10 on that part of the body of the animal being washed, confer figures 2 and 3.
The rear grip 14 may, in accordance with the embodiment shown in figure 4, consist of a lateral, projecting grip 14A, or it may, more suitably, be shaped such as illustrated in figures 1 - 3. In the latter embodiment, the rear grip 14 has a substantially rounded Z-shape or its main course may approximately follow a helical line. Such a grip shape permits that it can be seized by one hand along the central line A in all working positions, as well as permits variation possibilities for change of grasp at each single working position.
The bend 20 may form an angle of the order 115° and is adapted such that one avoids interferences and disadvantageous working positions due to the apparatus components 20, 22, 24 upstream of the swivel 18, minimizing weight load from the water supply hose coupled to the connector 24 during use.
In a practical embodiment, the inner pressure water carrying pipe may have a length of about 100 cm. At the outer end, a drive device for the brush may be rotatably suspended, shaped in order to be rotated by water under pressure. This
drive device carries the brush which is provided with bristles and through-going bores for letting the washing water through.