Blade tip and tool combination having a blade tip

Patent metadata

Field	Value
Publication number	US-11234352-B2
Application number	US-201715594945-A
Country	US
Kind code	B2
Filing date	May 15, 2017
Priority date	Nov 13, 2014
Publication date	Feb 1, 2022
Grant date	Feb 1, 2022

Abstract

A blade tip, and a tool combination having a blade tip, for an agricultural soil cultivation machine. The blade tip has a base part including a cutter, a cutter carrier, a guiding element and a receptacle for fastening the blade tip to a tine of the agricultural soil cultivation machine. The base part has a receptacle covered by covering portion. The guiding element has a plug attachment held in the receptacle, and a form-fitting connection preventing movement of the guiding element out of the receptacle, provided between the blade tip and the guiding element.

First claim

The invention claimed is:

1. A tool combination for an agricultural soil cultivation machine, the agricultural soil cultivation machine including a tine including a carrier part, the tool combination comprising:
a blade tip including a base part and a cutter attached to the base part, the base part including:
a screw receptacle defined in the base part for fastening the base part to the carrier part of the tine;
a plug receptacle defined in a back side of the base part, the plug receptacle being laterally enclosed by two side walls spaced apart from each other in a first direction transverse to a tool feed direction, and the plug receptacle being open to an end of the base part opposite from the cutter, such that the plug receptacle is covered in the tool feed direction by a covering portion of the base part; and
at least one form-fitting element defined on the base part; and

a guiding element including a plug projection receivable in the plug receptacle between the covering portion of the base part and the carrier part of the tine, the plug projection also being receivable between the two sidewalls, the guiding element further including at least one form-fitting counter element defined on the plug projection, the guiding element extending away from the plug projection out of the plug receptacle and beyond the base part in a direction away from the cutter to cover a portion of the carrier part of the tine and to guide soil cut by the blade tip; and
wherein the at least one form-fitting element is configured to form a form-fitting connection with the at least one form-fitting counter element such that movement of the plug projection out of the plug receptacle is prevented.

2. The tool combination of claim 1 , wherein:
the base part further includes two insertion chamfers spaced apart from each other and transitioning into the two side walls of the plug receptacle, the two insertion chamfers extending from the end of the base part opposite from the cutter to the two side walls of the plug receptacle.

3. The tool combination of claim 2 , wherein:
the two insertion chamfers define an opening angle in a range between 50 degrees and 70 degrees.

4. The tool combination of claim 2 , wherein:
the plug projection includes two guide surfaces set in a V-shape at an angle to each other, the guide surfaces being receivable between the two insertion chamfers.

5. The tool combination of claim 1 , wherein:
the at least one form-fitting element is arranged at least partially between the two side walls and the two side walls are spaced apart by a distance in a range between 40 mm and 50 mm.

6. The tool combination of claim 1 , wherein:
the at least one form-fitting element is defined on at least one of a surface delimiting the covering portion or on at least one of the side walls.

7. The tool combination of claim 1 , wherein:
the at least one form-fitting element includes at least one attachment protruding from the covering portion or at least one recess formed in the covering portion.

8. The tool combination of claim 1 , wherein:
the at least one form-fitting element is formed by at least one region of the plug receptacle tapering towards an opening of the plug receptacle.

9. The tool combination of claim 1 , wherein:
the at least one form-fitting element includes one of a centering attachment, a centering receptacle, a ball attachment, or a ball receptacle.

10. The tool combination of claim 1 , wherein:
the covering portion has a second screw receptacle defined through the covering portion and through the at least one form-fitting element.

11. The tool combination of claim 10 , wherein:
the second screw receptacle includes an end-side opening facing away from plug receptacle, the end-side opening being configured to receive a head of a fastening screw countersunk therein.

12. The tool combination of claim 10 , wherein:
the second screw receptacle includes a substantially rectangular shape opening defining a screw lock for non-rotatably fixing in place a fastening screw received through the second screw receptacle.

13. The tool combination of claim 1 , wherein:
the at least one form-fitting element includes at least one region of the plug receptacle tapering, and the at least one form-fitting counter element includes at least one region of the plug projection tapering to fit in the one region of the plug receptacle.

14. The tool combination of claim 1 , wherein:
the guiding element is connected to the tine and a second form-fitting connection is provided in a boundary surface between the guiding element and the tine.

15. The tool combination of claim 1 , wherein:
the guiding element is connected to the tine and the base part of the blade tip includes a form-fitting element proximate the plug receptacle engaging with a form-fitting counter element on the plug projection and with a form-fitting counter element of the tine.

16. The tool combination of claim 1 , wherein:
the guiding element is connected to the tine and the plug projection includes a form-fitting element engaging with a form-fitting counter element of the base part of the blade tip and with a form-fitting counter element of the tine.

17. The tool combination of claim 1 , wherein:
the guiding element is connected to the tine and the tine includes a form-fitting element engaging with a form-fitting counter element of the plug projection and with a form-fitting counter element of the base part of the blade tip.

18. The tool combination of claim 1 , wherein:
the covering portion has a second screw receptacle defined through the covering portion and through the at least one form-fitting element; and
the guiding element has a third screw receptacle defined therethrough and through the at least one form-fitting counter element.

19. The tool combination of claim 1 , wherein:
the covering portion forms a free surface positioned above the guiding element on the end of the base part opposite from the cutter; and
a further screw receptacle is defined through the guiding element, the further screw receptacle being spaced from the free surface by a distance of less than 50 mm.

20. The tool combination of claim 1 , wherein:
the covering portion includes a projection projecting above a front surface of the base part intermediate the plug receptacle and the cutter, the projection defining a protective skirt around at least a portion of the screw receptacle.

Assignees

• Betek Gmbh & Co Kg

Inventors

• Essig Wolfgang
• Kraemer Ulrich
• Smeets Florian
• Seifried Fabian
• Huber Ruth

Classifications

• B62D63/062

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• B65F1/1473

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• B65F2240/128

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• B65F1/10

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