JPS63138399U

JPS63138399U -

Info

Publication number: JPS63138399U
Application number: JP3144387U
Authority: JP
Priority date: 1987-03-04
Filing date: 1987-03-04
Publication date: 1988-09-12
Also published as: JPH0127808Y2

Description

[Brief explanation of the drawing]

図は本考案の一実施例を説明するもので、第１
図および第２図は設置状態の側面図および平面図
、第３図はステツプ部分の縦断側面図、第４図は
ステツプ部分の一部破断拡大正面図、第５図は階
段橋の正面図、第６図はステツプパイプの斜視図
、第７図はステツプブラケツトの斜視図、第８図
はステツプの一部拡大斜視図である。１……縦桁、２……ブラケツト、３……長孔、
４……欄干、５……支柱、６，７……横梁、８〜
１０……ボルト、１１……ステツプパイプ、１２
，２４……凹凸条、１３……突片、１４……円孔
、１５……タツピングねじ、１６……ステツプ、
１７……側辺、１８，２６……支持枠、１９……
係止枠、２０……突条、２２……ステツプブラケ
ツト、２３……円弧状部、２５……係合部材、２
７……突片、２７ａ……透孔。 The figure is for explaining one embodiment of the present invention.
Figure 2 and Figure 2 are a side view and a plan view of the installed state, Figure 3 is a longitudinal side view of the step section, Figure 4 is a partially cutaway enlarged front view of the step section, Figure 5 is a front view of the stair bridge, FIG. 6 is a perspective view of the step pipe, FIG. 7 is a perspective view of the step bracket, and FIG. 8 is a partially enlarged perspective view of the step. 1...Strong girder, 2...Bracket, 3...Long hole,
4...parapet, 5...post, 6,7...crossbeam, 8~
10... Bolt, 11... Step pipe, 12
, 24... Uneven strip, 13... Protruding piece, 14... Circular hole, 15... Tapping screw, 16... Step,
17...Side side, 18, 26...Support frame, 19...
Locking frame, 20... Projection, 22... Step bracket, 23... Arc-shaped portion, 25... Engaging member, 2
7... protrusion, 27a... through hole.

Claims

[Claims for Utility Model Registration] (1) A pair of left and right vertical girders 1, 1, a parapet 4 fixed to the outside of each vertical girder 1, and a plurality of horizontal girders 1, 1 suspended between the left and right vertical girders 1, 1. It consists of a real step pipe 11 and a step 16 fixed to this step pipe 11 via a pair of left and right step brackets 22, 22. 12 are formed at a predetermined pitch in the circumferential direction, and circular holes 14 are formed along the longitudinal direction at predetermined intervals in the circumferential direction by a pair of left and right protrusions 13, 13 having an arcuate cross section on the inner peripheral surface. A plurality of circular holes 14 are formed, and tapping screws 15 are screwed into these circular holes 14 from the outside of the longitudinal girder 1. (2) An inverted T-shaped support frame 18 is formed along the longitudinal direction at the center of the lower surface of the step 16, and on both sides of this support frame 18 there are symmetrical L-shaped cross sections.
Letter-shaped locking frames 19, 19 are formed with their bent pieces facing inward, and T-shaped spaces 19a are formed between the support frame 18 and the locking frame 19, respectively, and the step bracket 22 , 22 are exactly the same,
and is formed to be left and right symmetrical, each having an arcuate portion 23 in the center, and this arcuate portion 2
An uneven strip 24 having a structure complementary to the uneven strip on the outer circumferential surface of the step pipe 11 is formed along the longitudinal direction on the inner circumferential surface of the step pipe 3, and a T-shaped strip on the lower surface of the step 16 is formed at the upper end of the arcuate portion 23. A T-shaped engagement member 25 that fits into the shaped space 19a is formed along the longitudinal direction, and faces obliquely upward from the outer circumferential surface of the arcuate portion 23, with the upper end of the T-shaped engagement member 25 fitting into the engagement member 25. A support frame 26 is formed along the longitudinal direction until it is flush with the upper surface, and a projecting piece 27 having through holes 27a, 27a for connection with a bolt 28 is provided at the lower end of the arcuate portion 23. A rocky staircase bridge according to claim 1 of the utility model registration claim, characterized in that: