JPS63177564U

JPS63177564U -

Info

Publication number: JPS63177564U
Application number: JP6789887U
Authority: JP
Priority date: 1987-05-08
Filing date: 1987-05-08
Publication date: 1988-11-17

Description

[Brief explanation of the drawing]

第１図は本考案装置の全伸長状態における正面
図、第２図は同・短縮し収納状態としたとの正面
図、第３図は同・拡大平面図、第４図は中間管と
しての内管の拡大横断面図、第５図は外管の拡大
横断面図、第６図は内管の要部斜面図、第７図は
係止段部と係止軸との関連構造を示す要部断面図
、第８図は使用状態説明図である。１……支柱装置、２……外管、３，４……内管
、５，１５……支持機構、６，１６……両側縦杆
、７，１７……横杆、８，１８……係止段部、１
２，１３，１４，１９，２０……係止軸。 Fig. 1 is a front view of the device of the present invention in its fully extended state, Fig. 2 is a front view of the device in its shortened and stored state, Fig. 3 is an enlarged plan view of the same, and Fig. 4 is a front view of the device as an intermediate tube. FIG. 5 is an enlarged cross-sectional view of the inner tube, FIG. 5 is an enlarged cross-sectional view of the outer tube, FIG. 6 is a perspective view of the main part of the inner tube, and FIG. 7 is a diagram showing the related structure between the locking step and the locking shaft. A cross-sectional view of the main part, and FIG. 8 is an explanatory view of the state of use. 1... Strut device, 2... Outer tube, 3, 4... Inner tube, 5, 15... Support mechanism, 6, 16... Vertical rods on both sides, 7, 17... Horizontal rods, 8, 18... Locking stepped portion, 1
2, 13, 14, 19, 20... Locking shaft.

Claims

[Scope of utility model registration request]

On the opposite side of the inner surface of the upper opening of the outer tube, each side consists of vertical rods on both sides and horizontal rods with both ends fixed to these vertical rods on both sides, and the upper side is open at the opposite sides of the vertical rods on both sides and the upper side of the horizontal rod. A support mechanism is formed by defining a locking stepped portion, and a locking shaft is provided protrudingly on the opposite side of the outer peripheral surface of the inner tube, and the locking shaft of the inner tube is connected to the locking step portion of the outer tube. A strut device consisting of a plurality of stages consisting of a combination of an inner tube and an outer tube, which can be freely fitted and removed, and which can be expanded and contracted in height, with the outer tube at the lowest level being embedded and fixed.