JPS6246885B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a detector in an unmanned towing vehicle system.

In an unmanned towing vehicle system, it is necessary to bury a large number of reed switches underground for vehicle detection.

In conventional detectors of this kind, after the concrete base on which the unmanned vehicle runs is poured, a narrow groove is cut into the concrete base in the shape of a square using a concrete cutter, and the area is surrounded by the narrow groove. The reed switch would be embedded either directly or with some protection into the rectangular part of the reed, and then concrete would be poured on top of it.

For this reason, when a reed switch or the like malfunctions, it is extremely troublesome to have to break the concrete in the area, take out the switch, and repair it, or replace it with a new one, and the switch itself is also very difficult to repair. There were also problems such as the lead wire connected to the reed switch being severed due to the rotation of the detector due to external force.

The present invention has been made in view of these circumstances, and it completely eliminates the conventional drawbacks by simple yet rational means, improves the efficiency of embedding the detector, and improves the protection effect of the detector itself. The aim is to take sufficient measures to streamline the unmanned towing vehicle system and improve its workability.

Figures 1 and 2 show a detector A used in the equipment of the present invention, and as is clear from the figures, the reed switch mechanism B is fixed in a circular container 1 made of aluminum. Built-in,
An aluminum cap 3 is removably screwed onto the circular container 1 via an O-ring 2.

Reference numeral 4 denotes a lead wire of the reed switch mechanism (B), which is led out from a hole provided in the side surface of the circular container 1 through a watertight structure. Further, on the outer surface of the bottom of the circular container 1, a protrusion 5 (or groove) is provided in the diametrical direction of the circular container 1.
This is to prevent an accident in which the lead wire 4 is cut due to rotation by some external force.

Next, the method for burying this detector will be explained. Holes 7 having approximately the same diameter as the circular container 1 of the detector A are drilled with a hole saw at the required locations on the concrete base 6 on which the unmanned towing vehicle runs. Furthermore, this hole 7
A narrow groove 8 leading to the groove is provided using a concrete cutter or the like.

Next, the detector A is fitted into the drilled hole 7 so that its surface is approximately flush with the concrete level, and the protrusion 5 or groove provided on the bottom back surface of the circular container 1 is fitted. is firmly fitted into the inner bottom surface of the hole 7 to prevent the detector A from rotating and stabilize it, and the lead wire 4 is fitted and embedded in the narrow groove 8.

If the detector A buried in this way breaks down for some reason, the cap 3 is removed and the reed switch mechanism is taken out for repair or inspection.

The O-ring 2 also prevents dust and water from entering and protects the built-in reed switch mechanism B.

As detailed above, according to the present invention, a protrusion or groove is provided on the back surface of the bottom of the container housing the reed switch mechanism, and is screwed into the inner opening of the container so that the cap can be attached and detached via the sealing material. This prevents the buried container from rotating and prevents the lead wire from breaking, and if the built-in reed switch mechanism breaks down, the cap can be removed and the reed switch mechanism removed for repair or replacement. Yes, the work is extremely easy.

Furthermore, since the structure is such that the sealing member completely prevents the intrusion of dust and water, the built-in reed switch mechanism is reliably protected and has excellent effects such as fewer failures.

[Brief explanation of the drawing]

FIG. 1 is a plan view of the detector, and FIG. 2 is a longitudinal sectional view of the same. A...Detector, B...Reed switch mechanism, 1
...Container, 2...O ring (sealing member), 3...
...Cap, 4...Lead wire, 5...Protrusion or groove.

Claims (1)

[Claims] 1. A reed switch mechanism is built into the detector of an unmanned towing vehicle system, which is buried in a hole drilled at a predetermined location on the concrete base on which the unmanned towed vehicle runs, so that the detector surface is almost flush with the surface of the concrete base. and a container having a protrusion or groove for preventing rotation on the back of the bottom, and a built-in container that is screwed into the opening of the container and prevents water from entering through a sealing member between the container and the container. A detector in an unmanned towing vehicle system consisting of a cap to protect a reed switch.