DE9018001U1 - MOSS AND WEED DEVICE - Google Patents

Description

My file: H 112/12

Moss and weed killing device

The invention relates to a weed-killing device that works with a flat separating device.

Chemical and/or mechanical means are used to remove weeds between or on paving slabs, paving stones and garden areas. The well-known chemical moss and weed killers are harmful to the environment because they penetrate into the groundwater.

Mechanical weed-killing devices, such as knives or wire brushes, damage and scratch the edges of the paving slabs or paving stones. They are also cumbersome and time-consuming to use.

The object of the invention is to develop a device for weed control which is extremely simple in construction, ecologically compatible and economical to operate.

The solution to the problem is that weeds or similar plants are burned, scorched or cut off with an electrically heated wire or rod.

The weed-killing device consists of an electrical heating conductor, which is advantageously arranged in a ring-shaped and flexible manner at the lower end of a rod.

The rod preferably has an electrical connection and a handle at the upper end, as well as a switch, and if necessary a transformer or a battery if this is not located upstream of the electrical connection.

After the ring-shaped heating conductor has been placed around the weed or plant, the current flow is switched on. If the heating conductor is moved close to the ground, it cuts off the unwanted plants at the point it touches. The cutting height or depth can be freely selected by the user.

Due to the small thickness and width of the ring-shaped heating conductor, further, deeper processing of the joints between the pavement or paving stones is easily possible.

The weed-killing device can also be made from at least one rod-shaped heating conductor. It is advantageous if this heating rod is spring-loaded and flexible at its connection point to the hand holder.

By moving the rod-shaped heating conductor, which is held parallel to the ground, the weeds are burned and cut off. The remaining plant in the joints or in the soil is burned off by piercing the roots with the heating rod.

This type of weed control prevents rapid regrowth and is used effectively in a targeted manner.

The heating element is very easy to replace.

If the heating conductor is moved flat on a surface covered with moss horizontally or vertically, the moss will burn off and separate from the surface.

This method of removing moss and weeds leaves no marks on the paving slabs and is environmentally friendly.

The invention is illustrated in Fig. 1 to 6.

Fig. 1 shows the enclosure of a plant with the ring-shaped heating conductor;

Fig. 2 shows a side view of the moss and weed killing device in a joint guide;

Fig. 3 shows the adaptation of the heating element to uneven surfaces, even in vertical ones;

Fig. 4 shows the flat guidance of the ring-shaped heating conductor during moss destruction;

Fig. 5 shows a side section through the heating conductor rod and its connecting part;

Fig. 6 shows a side section through the heating conductor ring and its connecting part.

Fig. 1 shows a view of the weed-killing device (1) with a holder (3) and an electrical connection (7) while wrapping a ring-shaped heating conductor (2) around a plant for the purpose of plant destruction.

If the heating conductor (2) is displaced, the plant is cut. The roots remaining in the joints of footpath slabs (9) or paving can also be burned off by inserting the heating conductor (2) into narrow slots.

A low-voltage generator or accumulator (4) and the switches (6) are located on the hand holder (3) or along the connecting cable (7).

This device (1) is operated by hand and can also be used to shorten plant branches.

The length of the support rod (3) of the moss and weed-killing device (1) is advantageously adjustable. The support (3) is advantageously flexible in its course due to a radial separation of the rod and a connection with a spring (5). The heating conductor (2) is connected to the lower end of the support (3) using screws (13) or another detachable fastening method in a relatively easy-to-replace manner.

Fig. 2 shows a side view of the weed-killing device (1) when used in a joint guide; the plant roots and residues that are in the joints and thin slit-like cracks can be scorched and damaged.

Fig. 3 shows the adaptation of the heating element (2) to uneven surfaces, even in a vertical surface. The easy guidance of the heating element (2) allows it to avoid obstacles and adapt to every corner, edge and angle. The holder (3) is also axially flexible.

A fastening screw (13) of the heating element holder (10) is shown at the lower end of the bracket (3).

Fig. 4 shows the flat guidance of the ring-shaped heating conductor (2) for the purpose of moss destruction.

This device (1) is guided by hand and can also carry a replaceable rod- or ring-shaped heating conductor (2).

The way it works is roughly the same in both cases. By connecting a transformer (4), the weed-killing device (1) can also be used in damp areas without the operator being exposed to the risk of electric shock.

Due to the low energy consumption, the device can also be operated with a battery or other energy storage device.

Fig. 5 shows a side section through the heating conductor rod (2) and its connecting part (12).

By arranging a spring-loaded heating conductor holder (10), the expansion difference of the heating conductor (2) is compensated.

After loosening a fastening screw (13), the heating conductor (2) and its expansion compensation holder (10) with its connecting part (12) can be pulled out of the device holder (3) for replacement.

Fig. 6 shows a side section through the heating conductor ring (2) and its connecting part (12).

The spring (11) for compensating the expansion of the heating conductor (2) and its holder (10) are advantageously designed as a plug-in part. This is removably attached to the lower end of the device holder (3) using a removable fastening screw (13).

Claims (5)

Protection claims 1. Moss and weed killing device (1) with a flat cutting tool for destroying plants (8) growing on and/or between paving slabs (9) or pavements, characterized in that the cutting tool is a heating conductor (2) which is heated as a cutting-burning tool (2) by electrical resistance heating. 2. Moss and weed killing device according to claim 1, characterized in that the heating conductor (2) is ring-shaped and is elastically flexible and exchangeably connected to a hand holder (3). 3. Moss and weed killing device according to claim 1, characterized in that the heating conductor (2) is rod-shaped and is elastically flexible and exchangeably connected to a hand holder (3). 4. Moss and weed killing device according to claims 1 to 3, characterized in that a heating conductor holder (10) is made of a solid, rigid material in order to compensate for the expansion difference of the heating conductor (2) at different temperatures, for which purpose a spring (11) is arranged at the connection point of the heating conductor holder (10) to the device holder (3). 5. Moss and weed killing device according to claims 1 to 3, characterized in that the heating conductor holder (10) is made of a resilient material, which compensates for the expansion difference of the heating conductor (2) at different temperatures.