Laser distance sensor calibration tool and laser distance sensor calibration method

Abstract

In a forklift equipped with a laser distance sensor, the target plate can be easily and accurately positioned at a predetermined location in front of the forks. [Solution] The laser distance sensor calibration tool 10 includes a target plate 14 for calibrating the laser distance sensor 104 provided by the forklift 100, a long tool body 16 that supports the target plate 14 in front of the forks 102 of the forklift 100, a support part 18 that supports the tool body 16 at three points on the upper surface 102a of the forks 102, and a restricting part 20 that restricts the orientation of the tool body 16 relative to the forks 102 so that the central axis of the forks 102 and the central axis of the tool body 16 overlap in a top view.

Claims

1. A target plate for calibrating the laser distance sensor installed in a forklift, The tool body comprises an elongated section that supports the target plate in front of the forks of the forklift, A support portion that supports the tool body at three points on the upper surface of the fork, A restricting portion that restricts the orientation of the tool body relative to the fork such that the central axis of the fork and the central axis of the tool body overlap when viewed from above, A laser distance sensor calibration tool characterized by having the following features.

2. The laser distance sensor calibration tool according to claim 1, further comprising a fork tip for abutting against.

3. The laser distance sensor calibration tool according to claim 1 or 2, further comprising a fixing part for fixing the tool body to the fork.

4. The aforementioned support portion is The first and second support parts support the tool body at two points on the tip side of the fork, and the third support part supports the tool body at one point on the base side of the fork, A laser distance sensor calibration tool according to claim 1 or 2, characterized by including the following:

5. The third support portion is configured to be variable in length, The laser distance sensor calibration tool according to claim 4, characterized in that the tool body can adjust the pitch angle using the tips of the first and second support parts as pivot points by changing the length of the third support part.

6. The aforementioned regulatory body, A first restricting portion restricts the position of the tool body relative to the fork such that, in a top view, the center of the tool body in the width direction and the center of the fork in the width direction overlap at the tip of the fork, A second restricting portion restricts the position of the tool body relative to the fork such that, in a top view, the center of the width direction of the tool body and the center of the width direction of the fork overlap at the base of the fork, A laser distance sensor calibration tool according to claim 1 or 2, characterized by including the following:

7. A step of preparing a laser distance sensor calibration tool comprising a target plate for calibrating a laser distance sensor equipped on a forklift, and a long tool body that supports the target plate in front of the forks of the forklift, The steps include supporting the tool body at three points on the upper surface of the fork, The step of restricting the orientation of the tool body relative to the fork such that the central axis of the fork and the central axis of the tool body overlap when viewed from above, The steps include adjusting the optical axis of the laser distance sensor using the target plate, A method for calibrating a laser distance sensor, characterized by comprising the following:

8. The method for calibrating a laser distance sensor according to claim 7, further comprising the step of abutting the tip of the fork against a stopper provided on the tool body.

Images