JPS62166308U

JPS62166308U -

Info

Publication number: JPS62166308U
Application number: JP5404686U
Authority: JP
Priority date: 1986-04-10
Filing date: 1986-04-10
Publication date: 1987-10-22

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例を示す伸縮脚杆装置
の一部を切り欠いた正面図、第２図および第３図
はそれぞれ他の実施例を示す伸縮脚杆装置の要部
の拡大断面図、第４図は従来の伸縮脚杆装置の一
部断面図である。１１……内側脚管としての第１の脚管、１２…
…外側脚管としての第２の脚管、１３……締付け
ナツト、１４……拡径管部、１５……傾斜段部、
１６……ねじ部、１７……係合縁、１８……締付
け突部、１９，２０，２１……締付け環体、２２
……係合面。 Fig. 1 is a partially cutaway front view of a telescoping leg rod device showing one embodiment of the present invention, and Figs. 2 and 3 are enlarged views of main parts of the telescoping leg rod device showing other embodiments, respectively. FIG. 4 is a partially sectional view of a conventional telescopic leg rod device. 11... First leg tube as a medial leg tube, 12...
...Second leg pipe as an outer leg pipe, 13...Tightening nut, 14...Enlarged diameter tube part, 15...Incline step part,
16... Threaded portion, 17... Engaging edge, 18... Tightening protrusion, 19, 20, 21... Tightening ring body, 22
...Engagement surface.

Claims

[Claims for Utility Model Registration] Consisting of an inner leg tube, an outer leg tube that is telescopically fitted into the inner leg tube, and a tightening nut that is screwed onto the end of the outer leg tube, the outer leg An enlarged diameter pipe portion is formed at one end of the tube through an inclined step, and a threaded portion for screwing the tightening nut is formed on the outer circumferential surface portion, and an inclined step of the outer leg tube is formed inside one end of the tightening nut. A plurality of tightening rings are fitted between the enlarged diameter tube part of the outer leg tube and the inner leg tube, and both ends of each tightening ring are fitted. The engaging surface of the tightening ring body facing the inclined stepped portion of the outer leg pipe is an inclined engaging surface, and the engaging surface facing the engaging edge of the tightening protrusion of the tightening nut is engaged. each tightening ring has an engaging surface that engages with the engaging surface of an adjacent tightening ring as an inclined surface, and the thickness of at least one of the tightening rings is set to the above-mentioned thickness. A telescoping leg rod device characterized by having substantially the same dimension as the gap between the enlarged diameter pipe of the outer leg tube and the inner leg tube.