TRIPOD LEG EXTENSION ROD

• Main Author: HAYASHI MASAHIDE
• Format: Patent
• Language: English; Japanese
• Published: 16.02.2017
• Subjects: ACCESSORIES THEREFOR; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES; APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM; BLASTING; CINEMATOGRAPHY; ELECTROGRAPHY; ENGINEERING ELEMENTS AND UNITS; FRAMES, CASINGS, OR BEDS OF ENGINES OR OTHER MACHINES ORAPPARATUS NOT SPECIFIC TO AN ENGINE, MACHINE, OR APPARATUSPROVIDED FOR ELSEWHERE; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; HOLOGRAPHY; LIGHTING; MECHANICAL ENGINEERING; PHOTOGRAPHY; PHYSICS; STANDS OR SUPPORTS; THERMAL INSULATION IN GENERAL; WEAPONS

PROBLEM TO BE SOLVED: To further increase a height beyond the total height length of a tripod.SOLUTION: A technology can cope with a case when a height over a height adjustment structure is necessary, by a leg length adjustment lock mechanism 15 of a tripod body by connecting a threaded portion 2 of an extension rod 1 and a threaded portion 3 of a leg 14 of the tripod body. According to this screw connection extension rod system, the height can be further extended without having adverse effect of degradation of strength, though an ordinary inner/outer cylinder type contractile structure has a problem that the higher the leg is extended, the thinner the leg becomes to thereby degrade the strength. Further a ferrule component of a hard member is connected to a lower end of the extension rod 1 by screwing, thus the extension rod can be further extended and connected to extend the height by utilizing the screw for joining the ferrule, in addition to a merit of improvement of strength durability of a grounding portion.SELECTED DRAWING: Figure 1 【課題】三脚の全高長を超えて、更に高く出来る事を目的としたものである。【解決手段】本発明の延長棒１のネジ切部２と、三脚本体の脚１４のネジ切部３とを接続し、三脚本体の脚長さ調節ロック機構１５による、高さ調節構造を超えた必要がある場合に対応した技術。通常の内外筒式の伸縮構造では、高く伸ばせば伸ばす程、脚が細くなり強度低下の不具合を生じるが、このネジ接合の延長棒方式では、強度低下の副作用を生じること無く、さらなる高さ延長が可能となる。さらに延長棒１の下端には、硬い部材の石突き部品を、ネジにより接続する構造としており、接地部の強度耐久性の向上メリットに合わせて、この石突き接合用のネジを利用して、延長棒のさらなる延長接続によるさらなる高さ延長も可能。この延長を複数本繰り返しても、やはり、延長脚が細くなり強度低下する副作用はいっさい発生しない構造。【選択図】図１