Garden tool with 2 handles and knife-like tines for soil cultivation
Interchangeable tines and adjustable handles on a garden tool enable adaptation to various soil types and conditions, addressing the limitations of fixed-tine tools by providing versatility and ergonomic grip.
Patent Information
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- GRUBMILLER STEFAN
- Filing Date
- 2016-11-25
- Publication Date
- 2026-05-28
AI Technical Summary
Conventional garden tools with two handles and knife-like tines are limited to specific applications due to fixed tines, requiring significant effort to replace them for different soil types and working conditions.
The tines are detachably attached to the crossbeam, allowing for interchangeable tines with varying properties such as length, thickness, and shape, and the handles and crossbar dimensions are adjustable for ergonomic grip and versatile use.
The garden tool can adapt to different soil types and working conditions by exchanging tines, reducing the need for multiple tools, saving costs, space, and enhancing ergonomic usability.
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Abstract
Description
[0001] Among garden tools, there are a variety of hand tools, tool handles, shafts and locking systems that allow different tools to be attached and replaced as needed. See also: CN000002917210Y, CN000002590329Y, CN000201378914Y, CN000002912208Y, CN000002706997Y, CN000002199663Y, CN000205093089U, CN000205124257U, CN000203181503U, CN000102202490A, CN000202014439U, CN000002440303Y, CN000002323552Y, CN000002341345Y, DE000029619449U1 DE000029709364U1, DE000002617621A1, DE000002617622A1, DE000003815988A1, DE000008906844U1, DE000008813630U1, DE000003230521A1, DE000002617622C2, DE000002617621C2, KR000101039036B1, KR102009011342A, GB000001574156A, WO002011120189A1.
[0002] Garden tools for soil cultivation with one or more handles, featuring forked tools, are known. See: DE000020020475U1, CN000202635010U, US000007654018B2, WO002014154983A1, FR000002786976A1, DE202008008085U1.
[0003] There are garden tools for soil cultivation with tines made of round steel or other rounded shapes that offer the possibility of replacing the tines or changing their position. See: CN000102257890A, CN000202183931U, CN000105874898A, CN000104663020A.
[0004] Garden tools with knife-like tines are known. See FR000002248768A1. Furthermore, garden tools with two handles and knife-like tines are known, which allow for the tines to be repositioned. See FR000002948848A1.
[0005] Garden tools with two handles and knife-like tines of the usual design (internationally also called "broadforks") consist of two handles, a crossbar, and the tines. The tines are firmly attached to the crossbar. These connections are usually made of welds.
[0006] These garden tools are used for cultivating garden and field soils. The tines are pressed into the ground using body weight, so that the crossbar rests on the soil. Then, a downward levering motion is achieved via the handles, with the axle on the crossbar. This causes the tines to move upwards, breaking up and loosening the soil. This soil loosening is a great advantage for cultivating plants.
[0007] The tines of these garden tools have specific properties. These properties are determined, for example, by their length, diameter, and strength. Thus, different tines are available for different soil types, working depths, and degrees of soil compaction.
[0008] Due to the fixed connection of the tines to the crossbar, the familiar garden tools with two handles and knife-like tines for soil cultivation are only suitable for very specific applications. Different garden tools with two handles and knife-like tines must be used for different tasks.
[0009] Conventional garden tools for soil cultivation with two handles and knife-like tines lack the option of replacing the tines. Converting them to tines with different properties would require considerable effort to remove the original tines and attach new ones.
[0010] The invention specified in claim 1 is based on the problem of creating a garden tool with 2 handles and knife-like tines that makes it possible to change the tines depending on the area of application.
[0011] This problem is solved by the features listed in claims 1 and 2. The tines are detachably attached to the crossbeam. The tines are attached either directly to the crossbeam or to tool holders that are themselves firmly connected to the crossbeam.
[0012] The advantages achieved with the invention lie particularly in the fact that the garden tool can be adapted for different applications, such as varying working depths, different degrees of soil compaction, or different soil types, by exchanging the tines. Depending on the application, the different tines can have different properties, such as different lengths, thicknesses, strengths, or shapes. An example would be the use of tines of different lengths for working soils of varying depths.
[0013] This interchangeability of the tines has the advantage that only a single set of handles and crossbars is needed for multiple applications. This saves costs, environmental resources, and space in storage and transport.
[0014] The garden tool has two separate handles. These are attached directly to the crossbar, either directly or via a handle holder. A single handle attached to the center of the crossbar with one or even two separate grip areas on top is unsuitable due to unfavorable leverage.
[0015] The length of the handles is variable. The handles are of a length that a normal person can grasp in an upright position (60 to 250 cm).
[0016] The width of the crossbar is variable. The crossbar has a minimum width that allows at least one human foot to be positioned between it (at least 8 cm). The maximum width of the crossbar depends on the desired working width (maximum 160 cm). The handles are gripped with one hand each. The distance between the handles depends on the width of the crossbar (at least 8 cm if the handles are attached laterally). The maximum distance between the handles depends on the span of the human arm and the resulting limitations on gripping the handles (maximum 120 cm). Preferably, the distance between the handles is chosen according to the human shoulder width (40 cm to 90 cm) so that both handles can be gripped ergonomically with one hand each.
[0017] This allows the user to place one or both feet between the handles on the crossbar while working and apply downward pressure using their body weight. The spacing between the tines, or rather between the tool holders, is variable (3 cm to 30 cm) and is selected according to the application. For example, smaller spacings (3 cm to 10 cm) are advantageous for light soils. Larger spacings (10 cm to 30 cm) are better suited for heavy soils. With models featuring tool holders, it is possible to mount the tool holders at close intervals on the crossbar and still use the garden tool for various applications. Depending on the task, tool holders can then be left empty to adjust the tine spacing.The detachable fastenings between crossbeam and tines or between tines and tine mounts can be implemented, for example, with screw connections, quick-release fasteners, clamping locks, quick-release fasteners, bayonet locks, bolt and pin connections, bolt and cotter pin connections, toggle clamps or clamping bolts.
[0018] An advantageous embodiment of the invention is specified in claim 3. By providing uniform attachment options for various tools, the garden tool also offers the possibility of mounting other tools, such as crumbler rollers, cultivators, hoeing knives, cutting knives, support wheels, ridging bodies, or combinations thereof, on the crossbar.
[0019] An embodiment of the invention is described with reference to the Fig. 1, Fig. 2, Fig. 3 and Fig. 4 explained. These show: Fig. 1 Side view of the garden tool Fig. 2 Front view of the garden tool Fig. 3. Detailed side view of the garden tool Fig. 4. Detailed view of the front of the garden tool
[0020] The figures show an embodiment of the garden tool as a variant with handle mounts (2), a crossbar (3), 4 tool mounts (4), screw connections (5) and 4 identical tines (6).
[0021] In the embodiment shown in the figures, the detachable connections between tool holders and tines are designed as screw connections.
[0022] The tool holders and tines have holes that allow for screw connections. This allows the tines to be replaced or other tools with identical holes to be mounted. Reference symbol list 1 stem 2 Stem attachment 3 crossbeams 4 Tool holder 5 screw connection 6 knife-like prongs
Claims
Garden tool with 2 handles (1) and knife-like tines (6) for soil cultivation, characterized in that at least 2 knife-like tines (6) are detachably attached to at least one crossbar (3). Garden tool according to claim 1, characterized in that the knife-like tines (6) are detachably attached either directly to at least one crossbar (3) or via tool holders (4) which are themselves attached to at least one crossbar. Garden tool according to one of the preceding claims, characterized in that the garden tool can be equipped with other tools instead of knife-like tines (6), preferably crumb rollers, cultivators, chopping knives, cutting knives, support wheels, ridging bodies or a combination of different tools which have the same features with regard to attachment. Garden tool according to one of the preceding claims, characterized in that the handles (1) are directly connected to the crossbar (3) or are attached via handle receptacles (2). Garden tool according to one of the preceding claims, characterized in that the handles (1) are connected by means of a transverse connection, so that an additional handle is formed at right angles to the handles. Garden tool according to one of the preceding claims, characterized in that the handles (1) can have straight or curved shapes. Garden tool according to one of the preceding claims, characterized in that the knife-like tines (6) can be blunt or sharpened. Garden tool according to one of the preceding claims, characterized in that the knife-like tines (6) can have different materials, cross-sections, lengths and shapes. Garden device according to one of the preceding claims, characterized in that the crossbar (3) can have different, preferably rectangular or round, cross-sections. Garden tool according to one of the preceding claims, characterized in that the at least 2 knife-like tines (6) are attached to the at least one crossbar (3) by means of screw connections (5).
Citation Information
Patent Citations
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