DE3135640A1 - Tool for cutting off branches from cultivated plants - Google Patents

Abstract

The tool is designed as a sword-like cutter, the handle (13) of which is provided, at its end directed away from the blade (11), with a bow (14) which, up to its free end, extends on the cutting side of the blade (11) and over part of the length of the handle, at a distance therefrom, in the direction towards the blade. <IMAGE>

Description

PATENT LAWYERS

Dr.-Infl. Wolff t

H. Bartels

Dipl.-Chem. Dr. Brandes

Dr.-Ing. Hero

Dipl.-Phys. Wolff

APPROVED REPRESENTATIVES AT THE EUROPEAN PATENT OFFICE REPRESENTATIVES BEFORE THE EUROPEANPATENTOFRCE MANDATAIRES PRES L ¹ OFFICE EUROPEEN DES BREVETS

Lange Str. 51.D-7000 Stuttgart 1

Tel. (0711) 296310 and 297295

Telex 0722312 (patwo d)

Telegram address:

tlx 0722312 Wolff Stuttgart

PA Dr. Brandes: Headquarters Munich

Sept 2, 1981

75O8tbe

Registration number. 126 403

Anton EBERT, 7592 Rench.m / Ulm

Tool for cutting branches from crops

The invention relates to a tool for cutting off Branches of cultivated plants, especially blind shoots of grapevines.

So far it has been known to use scissors ^{for this 1 purpose.} As you open the scissors for each branch, attach and

must close, this process is very time-consuming and energy-consuming.

The invention is based on the object of creating a tool of this type that is much simpler and lighter is to be handled and by means of which the branches can be cut off much faster.

Postscheckamt Stuttgart 7211-700 BLZ 60010070 Telephone information and

Deutsche Bank AG, 14/28630 BLZ 60070070 Orders are only possible after written

Confirmation binding

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This object is achieved according to the invention by a tool that is designed as a sword-like knife that has a substantially straight blade with a cutting edge and a handle facing away from the blade End is provided with a bracket that is on the cutting side of the tool at a distance from Handle extends over at least part of the length of the same. This creates a cutting tool by means of whose branches located on one side of the plant can be cut off with one stroke, whereby by the momentum with which the tool according to the invention is moved when cutting the branches, for the direct Cutting off much less force is required. Since when cutting off the branches, the tool usually moves from the top to the bottom is moved down, the bracket protects the hand from injuries caused by plant branches. In addition, this forms Bracket, so to speak, a hook on which the tool, when it is cutting off the branches while exercising Blows out of the hand, gets stuck in the hand or on which the tool can be hung in the arm when it required to have both hands free. With the tool according to the invention, the branches can also in the manner cut off or better cut off when the tool is moved from bottom to top. Since in this case the The handle does not sit as well in the hand as it does when moving the tool from top to bottom, it can be held in such a way that the bracket forms a stop on the arm through which a rotation of the tool about its longitudinal axis in the Hand is avoided.

There is another advantage of the tool according to the invention in the fact that if you train the handle by such a piece longer than 10 cm, when you grasp his the

Blade at the adjacent end that protrudes from the palm of the hand The end of the handle, together with the stirrup, compensates for the impact exerted on the blade when a branch is cut Shock forms. As a result, the tool according to the invention can be designed in such a way that the tool holding the tool Hand is only minimally burdened and thus, for example, a multiple of crops from the undesired in one day Branches can be freed, as with the familiar scissor-shaped tools.

LO For the simplest and most cost-saving production possible to enable the tool according to the invention is at a preferred embodiment of the same as a handle a tube is provided on its facing towards the blade The end is flattened in a wedge shape so that the blade end connected to the handle has the widest axial section of the flattened pipe end has adapted cut and up for touching its edges with the inner wall of the pipe is introduced into this and welded together with this.

The preferred field of application of the invention The tool is viticulture, in which the tool is used to cut off blind shoots from the vines. The tool can also be used to cut branches from other crops, e.g. in maize cultivation for cutting off the upper stems, for trimming hedges, especially privet hedges. Depending on the application can the tool within the scope of the invention in his Shaping can be adapted to the respective requirements if this is necessary.

An embodiment of the tool according to the invention provided for viticulture is shown in the drawing and described in detail in the following description. .

Show it:

Fig. 1 is a side view of the embodiment;

2 shows a partial view of the end of the blade facing the handle of the tool;

Fig. 3 is a perspective view of the

Handle forming, reshaped pipe section; ·

4 and 5, sections along the lines IV - IV and V - V in FIG. 1

The tool shown in the drawing for cutting off blind shoots from vines is a sword-like knife formed, which has a substantially straight blade 11 with a cutting edge 12 and a handle 13, the at its end facing away from the blade 11 is provided with a bracket 14 which is located on the cutting side of the tool extends at a distance from the handle 13 over more than half the length of the handle 13.

The handle 13 consists, like that in particular from FIG. 3 It can be seen from a pipe section 15 which is flattened in a wedge shape at its end facing the blade 11.

The end 16 of the blade 11 facing the handle 13 has, as can be seen from FIG. 2, one of the widest Axial section of the flattened

End of the pipe section 15 adapted blank, by which it is ensured / that when the end 16 of the blade 11 in the flattened end of the pipe section 15 is inserted, the edges of the blade end 16 the inner wall of the flattened Touch the end of the pipe section where this inner wall has the largest diameter. So put together the blade end 16 is welded together with the pipe section 15 by spot welding, so that at the welds Welding nubs 17 and 18 are formed. The welding nubs are arranged so that they are between the fingers of a hand grasping the handle and so on increase the grip of the handle. The weld nubs located on the pipe end facing the blade 11 18 simultaneously form a delimitation of the handle towards the blade 11.

In the illustrated embodiment, the handle 13 a length of about 16 cm. With a hand width of up to 10 cm, the handle 13 protrudes on that of the blade 11 facing away end with at least 6 cm over the through the Knobs 17 marked, grasped by the hand Teil'des Handle.

The approximately 3 mm thick blade has in the illustrated embodiment a length of 60 cm 57 and 62 cm. Its width is 4 cm at the widest point next to the handle. The one to avoid from injuries only at a distance of at least Cutting edge 12 beginning 10 cm from handle 13 is light convexly curved to prevent the blade from getting stuck, is the free end 19 of the rest of the cutting edge, like that can be seen from Fig. 1, slightly kinked. Furthermore, the end 16 of the blade 11 is cut so that the bracket 14 facing Mantelünie 21 of the handle with the tangent 22 at the center of the cutting edge 12 an angle

of 13 forms with a tolerance of + 3 ° to when cutting of the branches to achieve a cut that is as pulling as possible.

One end of the bracket 14 is attached to the end of the tubular piece forming the handle 13 facing away from the blade 15 welded so that it closes the pipe opening on this side at the same time. From this attachment point the bracket 14 extends initially in an arc shape and then at its free end in a straight part to a little over half the length of the handle 13. This straight free end of the bracket 14 forms with the one adjacent to it Surface line 21 of the handle 13 forms an angle 24 of approximately 20 ° with a tolerance of + 3 °.

The blade 11 is made of chrome vanadium steel. The pipe section 15 forming the handle 13 and the bracket 14 can be made of the same steel. However, a cheaper material can also be used for this. The exact dimensions of the individual parts are chosen so that the center of gravity of the entire tool is at such a point in the part of the blade 11 adjacent to the handle 13 that in connection with the part of the handle on the side facing away from the blade 11 over the hand grasping the handle protrudes _f and the bracket 14 a shock compensation for the shock exerted on the blade 11 when cutting a branch is achieved so that the hand is practically not burdened when knocking off the branches. In order to visually clearly indicate the position of the hand on the handle 13 to the user of the tool, the blade 11 is provided directly next to the handle 13 with a preferably red border strip as a marking 25.

The tool described above is usually used for knocking off the blind shoots on vines through one from above

downward movement used. To this end, will the handle 13 from the side facing away from the bracket 14 detected, so that the training of the tool has a particularly favorable effect in all of the above-mentioned details.

If the handle accidentally slips out of your hand, the tool can still be caught on the bracket can also be used to hang the whole tool, e.g. on the forearm, if the person using the tool both hands are required. In cases where the blind branches are attached to the vine by a bottom-up motion must be cut off by means of the said tool, the handle 13 is detected so that the thumb between the Handle 13 and the bracket 14 reaches through. In this case, the bracket 14 then forms a stop on the forearm through which a Twisting of the tool in the hand around the tool's longitudinal axis is prevented.

- 8 / claims

Claims (14)

Claims 1.Tool for cutting branches from crops, in particular of blind shoots of vines, characterized in that it is a sword-like knife is designed, which has a substantially straight blade (11) with a cutting edge (12) and a handle (13) has, which is provided at its end facing away from the blade (11) with a bracket (14) which is on the cutting side the tool extends at a distance from the handle (13) over at least part of the length thereof. 2. Tool according to claim 1, characterized in that that the initially arcuate bracket (14) runs essentially in a straight line at its free end and that this End with the adjacent surface line (21) of the handle (13) an acute angle (24), preferably one Forms an angle of about 20 ° + 3 °. 3. Tool according to claim 1 or 2, characterized in that that the bracket (14) extends only slightly over half the length of the handle (13). 4. Tool according to one of claims 1 to 3, characterized in that the on the cutting side of the tool located surface line (21) of the handle (13) with an imaginary extension extending along the handle the cutting edge (12) has an acute angle (23) lying outside the blade (11), preferably of 13 +3, forms. 5. Tool according to claim 4, characterized in that the cutting edge (12) is slightly: convex qeboqen and that the acute angle (23) through the tangent (22) at the midpoint the cutting edge (12) and the one on the cutting edge Surface line (21) of the handle (13) is defined. 6. Tool according to one of claims 1 to 5 / characterized in that the cutting edge (12) only in at least one 10 cm from the handle (13) begins and preferably has the feature that it is on its free end (19) is kinked. 7. Tool according to one of claims 1 to 6, characterized characterized in that the handle (13) is longer than 10 cm by such a piece that when grasping his the At the end adjacent to the blade (11), the handle end protruding beyond the palm of the hand together with the bracket (14) Forms shock compensation for the shock exerted on the blade (11) when cutting a branch. 8. Tool according to one of claims 1 to 7, characterized in that the center of gravity of the tool located in the part of the blade (11) which is adjacent to the handle (13) » 9. Tool according to one of claims 1 to 8, characterized characterized in that the part of the handle (13) adjacent to the blade (11) with; Knobs (17, 18) is provided, the are adapted to the hand grasping the handle, and preferably with a marking (25) indicating the position of the hand. 10. The tool is seen according to any one of claims 1 to 9, characterized in that a tube (15) forward as a handle (13) 'which is ^l flattened (11) end facing wedge-shaped at its blade that with the Handle (13) connected blade end (16) has a cut adapted to the widest axial section of the flattened pipe end and is inserted into the pipe until it touches the inner wall of the pipe and is welded to it. • · · »β A e a. . • · β., Soon. • «« II »Γ," "" "" " • · «■ · * α -th 11. Tool according to claim 9 and 10, characterized in that that the knobs (17, 18) adapted to the hand are weld knobs. 12. Tool according to one of claims 1 to 11, characterized in that the blade (11) made of chrome-vanadium steel consists. 13. Tool according to one of claims 1 to 12, characterized characterized in that the length of the blade (11) with a tolerance of about + 2 and - 3 cm, is 60 cm. 14. Tool according to claim 13, characterized in that the blade (11) is decreasing towards its free end Has a maximum width of 4 cm and is about 0.3 cm thick. ''