JPH0220353Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention is an automatic concrete floor surface finishing system that consists of an unmanned running trolley supported by running wheels and an impeller installed on the trolley and rotated by a motor. It relates to wheels for running the device.

[Prior Art] When forming a concrete floor surface, it is necessary to smoothen the floor surface after pouring concrete in a fluid state. Currently, the mainstream method for finishing concrete floors is the monolithic construction method, in which floor finishing is carried out in parallel with the hardening of the concrete. A device called a trowel is used for this finishing step. This trowell has an impeller that rotates with power, and uses this impeller to smoothen the concrete surface. This trowell is normally operated by a worker. For the purpose of automating this concrete finishing work, the applicant has already proposed a device in which a trowel is attached to an automatically traveling trolley.

These devices are disclosed in Japanese Patent Application No. 130843/1984.
-132029, Patent Application No. 132030, Patent Application No. 1982-
No. 132031 filed by the present applicant.
These devices have an excellent ability to completely automate the finishing of concrete floors by allowing a traveling trolley equipped with an autonomous navigation device to accurately drive unmanned over the concrete floor and send the trowel to every corner of the floor. ing.

However, the trolley still runs on a semi-hardened concrete floor surface that is not yet dry.
In order to perform steering, paste-like skin of the concrete floor surface may adhere to the wheel surface of the traveling truck and peel off from the floor surface. As a result, it is necessary to refinish the concrete floor surface that has been carefully finished, and there is also the problem that the concrete adhering to the wheels may further damage other floor surfaces.

[Purpose of the invention] Therefore, the purpose of the present invention is to provide an improved device that prevents concrete from adhering to the surface of the wheels supporting the traveling truck.

[Structure of the invention] According to the invention, a coating layer is formed on the outer peripheral surface of a traveling wheel, and this coating layer is composed of a plastic substrate and plastic fibers implanted on the substrate.

[Effect of the invention] Therefore, according to the invention, since the plastic fiber layer is interposed between the concrete floor surface and the wheel frame, concrete is not adsorbed to the frame and the concrete peeling phenomenon is prevented. It will no longer occur.

[Embodiment] FIG. 1 shows the entire automatic concrete floor finishing device to which the present invention is applied, and the device is roughly divided into a traveling cart 2 and a trowel device 1. The trowell 1 is provided with an impeller 11 driven by a motor 12 on the floor surface, and the impeller 11 finishes the concrete floor surface 10 smoothly while slidingly contacting the surface.

The traveling truck 2 has driven wheels 4 at the front and rear and a driving wheel 5 in the center, and the driven wheels 4 are steered by a steering device 6. In addition to the power source inside the trolley 2,
A gyro device 21 is provided, and this gyro device controls the unmanned operation of the truck while automatically calculating the traveling direction, current position, etc. of the truck. A measuring roller 22 is attached to the center of the truck 2, and by detecting the rotation of this roller 22, the traveling distance of the truck 2 is measured and a signal is given to the control device.

An arm 3 is attached to the trolley 2, and this arm 3 supports the trowel 1 in a freely rotating manner.

Therefore, while the trolley 2 automatically travels in the direction of the arrow, the floor surface is finished by the trowel 1 behind it, so even if there are marks left behind by the wheels 4 and 5, the trowel will immediately correct it. The surface becomes smooth. However, if a lump of concrete adheres to the surface of the wheels 4 and 5,
Even if Trowel's feathers pass in its wake,
The recess cannot be filled completely and will require repair. In the present invention, as shown in FIG.
A covering layer 8 made of synthetic resin is attached to the surface.

As shown in FIG. 3, this covering layer 8 is composed of a substrate 8a made of plastic or the like and a fibrous material 8b planted on the substrate. The fiber material 8b is made of hard plastic fibers planted all over the substrate to a height of about 5 to 6 mm, and has a shape similar to what is called artificial grass.

When this wheel runs on the concrete floor surface 10, the fibers 8b are interposed between the floor surface and the wheel, so a gap is created, making it difficult for concrete to stick to the drum surface of the wheel. Furthermore, since the fibers 8b are made of plastic and do not have water absorption properties, concrete containing water is difficult to adhere to them, and even if they are pushed down onto the concrete surface, they return to their original position after passing and stand upright, thereby preventing concrete from adhering to them.

[Summary] As described above, the present invention has a simple configuration in which a plastic fiber layer is provided on the surface of the wheels that support the traveling bogie, and it is possible to prevent concrete from peeling during concrete finishing work and achieve high-quality finishing. Can be done. Further, the technical concept of the present invention is not limited to a concrete floor finishing device, but can be applied to, for example, a device for finishing surfaces such as playgrounds and tennis courts.

[Brief explanation of drawings]

Figure 1 is a side view of an automatic concrete floor finishing device to which the present invention is applied, Figure 2 is a side view of the wheels,
FIG. 3 is an explanatory diagram of the coating layer. DESCRIPTION OF SYMBOLS 1... Trowel, 2... Traveling truck, 3... Arm, 4... Driven wheel, 5... Drive wheel, 6... Steering device, 7... Wheel drum, 8... Plastic coating layer, 10... Concrete floor surface.

Claims (1)

[Scope of utility model registration request] Forming a coating layer on the outer circumferential surface of the running wheels of an automatic concrete floor finishing device that consists of an unmanned running trolley supported by running wheels and an impeller installed on the trolley and rotated by a motor. A running wheel for an automatic concrete floor finishing device, wherein the coating layer is composed of a plastic substrate and plastic fibers planted on the substrate.