Method and device for detecting position

Abstract

Abstract PURPOSE:To perform the adjustment of a position relatively easily only by a driver without a large apparatus, by preparing first and second reflecting plates and a third plate, which has a protruded part that becomes gradually narrow along a central line, and moving a beam from a third detector to the direction of the protruded part of the third reflecting plate. CONSTITUTION:When a carrier part 1 is located at the left side, driver drives the device so that light beams from beam detectors 11-13 are irradiated on and received by the top end parts of the reflecting plates 6-8. The driving can be performed relatively simply by detecting whether the reflected beam is received by the third detector 13 or not. When the carrier part 1 is moved backward and brought close to a crane part 2, the irradiating positions of the first - third beam detectors 11-13 with respect to the first - third reflecting plates 6-8 are gradually moved downward. Since the third reflector 8 has a protruded part 10 at the central part, the reflected beam is not detected by the third beam detector 13 if the beam from the third beam detector 13 is not within the range determined by the width of the protruded part 10.

Inventors

• 👤 Yasuo Kubota
• 👤 靖夫 久保田
• 👤 Mutsuo Hirai
• 👤 平井　睦男

Bibliographic Details