Cutlery – Combined cutlery or combined with ancillary feature – With means to apply transient fluid to tool
Patent
1987-04-30
1988-11-15
Watts, Douglas D.
Cutlery
Combined cutlery or combined with ancillary feature
With means to apply transient fluid to tool
47 1R, A01G 300
Patent
active
047839074
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to devices for simultaneously cutting and treating a plant stem, such as, for example, vine stocks or shoots, the branches of fruit trees or ornamental trees, etc.
In all cultivation which gives rise to fruit, it is necessary to prune at certain periods. This is true, for example, of fruit trees, of vines, and of other plants of the same type. It is necessary to prune such plants periodically to give them vigor, to protect them against anarchic growth, etc.
No automatic machine exists for performing such pruning since it is absolutely essential for the person skilled in the art to determine the exact location at which pruning is to be performed on the basis of personal knowhow. Pruning is performed using a cutting implement of the secateur type.
When a plant is pruned, a pruning "wound" is inevitably inflicted thereon, and the wound must be protected and/or treated as must wounds on human beings.
When a large number of plants are to be pruned and then treated after pruning a problem arises. Since pruning is performed manually and cannot be performed any other way, it takes a certain length of time, and the pruning wounds inflicted may begin to become infected while the person skilled in the art continues pruning until pruning has been completed, prior to treating the wounds. A high loss percentage has been observed due to this procedure, in particular with vines.
In order to mitigate this drawback, proposals have been made to provide the person skilled in the art with a spray so that the wound can be sprayed each time a cut is made. However, experience has shown that such apparatus is bulky and that spraying is not performed regularly and at the right location or on each occasion.
In order to mitigate this drawback of bulk, and to be certain that each wound is treated, proposals have since been made to couple the spray system with the secateur. However, although this is an improvement over earlier methods, such new methods likewise suffer from drawbacks. Firstly, in order to ensure that the entire wound is covered in spray, the cone angle of the spray must be relatively wide, thereby causing a non-negligible quantity of treatment substance to be lost. Secondly, since the substance is to be sprayed, it must be in liquid form. This means that the volume of liquid substance which can be carried by a person and be used to treat only a small number of pruned plants, thus requiring the person skilled in the art to go away frequently to obtain refills of liquid to be sprayed. Experience has shown that the person does not spray on all occasions, particularly when time is short.
The aim of the present invention is to provide a device for simultaneously cutting and treating a plant stem, which device is simple to manufacture, easy to use, compact and ergonomic, while providing the advantages of minimizing consumption of the treatment substance and of ensuring that the treatment is applied each time a cut is made.
The present invention provides a device for simultaneously cutting and treating plant stems, the device comprising: and including a surface suitable for sliding over at least a portion of one face of said cutting blade during rotation; cutting blade and opening out via at least one orifice; said substance from said store to said orifice; overflows is situated in said face of said cutting blade, said means for controlling transmission of said substance enabling a drop of said substance to be obtained at the outlet from said orifice when said surface of the anvil blade is opposite said face of the cutting blade.
Other characteristics and advantages of the present invention appear from the following description given by way of non-limiting illustration with reference to the accompanying drawings, in which:
FIG. 1 is a partially cut-away view of an embodiment of a device for simultaneously cutting and treating a plant stem in accordance with the invention;
FIGS. 2, 3, and 4 show details of the FIG. 1 embodiment of the device;
FIGS. 5 and 6 are views of the device shown in FIGS. 1 t
REFERENCES:
patent: 1056046 (1913-03-01), Myers
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