Animal husbandry – Waste toilet or related device – Walled receptacle; e.g. – litter box – etc. – containing...
Patent
1982-11-10
1989-05-16
Swiatek, Robert P.
Animal husbandry
Waste toilet or related device
Walled receptacle; e.g., litter box, etc., containing...
A61D 300
Patent
active
048299375
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a device for accommodating an animal to be tended, particularly a cow, comprising a frame formed by relatively spaced lateral frame parts and a frame part interconnecting the former, the lateral frame parts bounding an accommodation space open at least to the front and the underside for receiving the animal and furthermore comprising supporting means connected with the frame for supporting the animal with respect to the frame, said supporting means comprising a belly-strap.
Such a device is known from German patent application No. 2,017,155 and is employed, for example, for trimming the hooves of a cow. Cutting the hooves has to be done every half year. The device is positioned around the cow and by the supporting means the cow is held in place with respect to the frame so that the hooves can be readily tended. In this known device the supporting means are formed by a belly-strap secured to the forward end of the device. An animal held in this device is still capable of slightly moving laterally with respect to the frame.
The invention has for its object to provide a device of the kind set forth in the preamble, in which the animal can be better supported with respect to the frame.
This is achieved by a device in which the supporting means comprise back supporting means coming into contact with the animal's back. Thus the animal is completely fixed in place with respect to the frame of the device so that it is held substantially immovable with respect to the device.
Preferably the strap is secured to the forward end of the frame and the supporting means furthermore comprise a withers support positioned above said strap.
When in accordance with the invention the belly-strap is rigidly secured by one of its ends to the frame and it is engaged at the other end by a lifting device mounted on the frame, the animal can be firmly held in contact with the withers support in the device, by actuating the lifting device.
In an effective embodiment the lifting device is formed by a hand winch. The hand winch preferably comprises a crank immovably coupled with the frame by a pawl device normally held in engagement by spring means, whilst unlocking means of the pawl device are arranged on the crank handle. It is thus ensured that the lifting device is invariably locked when the handle is not touched. Consequently, when one lets go of the handle, the lifting device is immediately locked. Thus, injuries of the animal being tended and of the operator are effectively avoided. If the lifting device were released too rapidly the animal might lose its balance and be injured and a rapidly rotating crank might injure the operator.
When in accordance with the invention the back supporting means comprise supporting plates pivoted to the frame, they can join the back of the animal to be tended with satisfactory fit. Thus the supporting effect will be optimal. In order to enhance the stability the strap may comprise a rigid portion, for example, a plate portion.
In an advantageous embodiment of the invention a wheel frame is connected with each lateral frame part through a spring system, which spring system engages the frame in a manner such that the working line of the force resulting from the weight of the device and the forces exerted in operation on the supporting means substantially coincides with the working line of the reactive force exerted by the spring system on the frame. It is thus ensured that when the strap is tightened by means of the lifting device the frame is substantially perpendicularly drawn downwards until it gets into contact with the ground.
Further features and advantages of the invention will become apparent from the following description of an embodiment thereof with reference to the accompanying drawings.
FIG. 1 is a perspective view partly broken away of a device embodying the invention in the operational state.
FIG. 2 is a partial front view of the device constituting a preferred embodiment of the invention.
FIG. 3 shows a detail of a preferred embodiment of the device in accord
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Snyder John P.
Swiatek Robert P.
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