TELESCOPIC WORK DEVICE AND EXPANSION/CONTRACTION CONTROL METHOD

• Main Authors: MAEDA YUJI, WARASHINA MASAHIKO, HOZUMI HISASHI, TOKUNAGA YASUAKI, SAITO MASAHIRO, SATO KATSUHIKO
• Format: Patent
• Language: English; Japanese
• Published: 06.04.2017
• Subjects: BLASTING; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR; FLUID-PRESSURE ACTUATORS; FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS; HEATING; HYDRAULICS OR PNEUMATICS IN GENERAL; LIGHTING; MECHANICAL ENGINEERING; SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; WEAPONS

PROBLEM TO BE SOLVED: To provide a telescopic work device and an expansion/contraction control method capable of suppressing increase of a weight of the telescopic mechanism, performing positioning at a tip portion of the telescopic mechanism by suppressing a deflection amount at the tip portion of the telescopic mechanism, and further preventing loosening of a wire for contracting the telescopic mechanism.SOLUTION: A telescopic mechanism 1 is composed of a multistage cylinder units 31 composed of an outer cylinder 32 and inner cylinders 33-36, and a position adjustment wire 3 is wound between a tip base 2 mounted on a tip portion 1a and a wire take-up mechanism 5 disposed on a fixing portion 4. By taking up the position adjustment wire 3 by the wire take-up mechanism 5, the telescopic mechanism 1 can be contracted, and the telescopic mechanism 1 can be expanded to a desired length by supplying the compressed air of a prescribed pressure to the telescopic mechanism 1 from a pressure adjustment means 8.SELECTED DRAWING: Figure 1 【課題】テレスコピック機構の重量増加を抑えることができ、テレスコピック機構の先端部における撓み量を抑えて、テレスコピック機構の先端部における位置決めを行うことができ、また、テレスコピック機構を縮短させるワイヤの弛みを防止できる伸縮式作業装置およびテレスコピック機構の伸縮制御方法を提供する。【解決手段】テレスコピック機構１は、外筒３２と内筒３３〜３６からなる多段のシリンダユニット３１から構成されており、先端部１ａに取付けた先端ベース２と固定部４に設けたワイヤ巻取り機構５との間に位置調整用ワイヤ３が巻架されている。ワイヤ巻取り機構５で位置調整用ワイヤ３の巻取りを行うことで、テレスコピック機構１の縮短動を行え、圧力調整手段８から所定圧の圧縮空気をテレスコピック機構１に供給することで、テレスコピック機構１を所望の長さ伸長させることができる。【選択図】図１