JPH0462797U

JPH0462797U -

Info

Publication number: JPH0462797U
Application number: JP10345490U
Authority: JP
Priority date: 1990-10-01
Filing date: 1990-10-01
Publication date: 1992-05-28

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図はこの考案が組立られた状態の側面図、
第２図は同じく一部欠除した連結状態を示す横断
面図、第３図は同じく一部欠除した回動係止片の
作動状態を示す一部欠除した横断面図、第４図は
同じく伸長した状態の側面図、第５図は回動係止
片の作動状態の一部欠除した側面図、第６図は梯
子側枠の嵌合状態を示す斜面図、第７図は上下部
係止突部の停止状態を示す横断側面図である。符号１は梯子本体、２は梯子側枠、３は足踏棒
、４は開口部、７は可動係止片、８は回動軸、９
は係止凹部、１０，１１は長孔部、１３，１５，
１７は水平片、１４，１６は垂直片、１８は凹凸
面、２０は下降停止片である。 Figure 1 is a side view of this device in its assembled state.
Fig. 2 is a cross-sectional view showing the connected state with a part removed, Fig. 3 is a cross-sectional view with a part removed showing the operating state of the rotation locking piece, and Fig. 4. 5 is a partially cutaway side view of the rotary locking piece in its operating state, FIG. 6 is a perspective view showing the ladder side frame in its fitted state, and FIG. 7 is a side view of the ladder side frame in its extended state. FIG. 7 is a cross-sectional side view showing a stopped state of the upper and lower locking protrusions. Reference numeral 1 is the ladder body, 2 is the ladder side frame, 3 is the foot bar, 4 is the opening, 7 is the movable locking piece, 8 is the rotating shaft, 9
is a locking recess, 10, 11 is a long hole, 13, 15,
17 is a horizontal piece, 14 and 16 are vertical pieces, 18 is an uneven surface, and 20 is a descending stop piece.

Claims

【実用新案登録請求の範囲】[Scope of utility model registration request]

相対向する梯子側枠を順次伸縮自在に連結して
梯子本体を形成する伸縮梯子において、前記梯子
側枠２，２^１……は、相反する開口部４，４を形
成した断面が角Ｓ字型に構成され、該梯子側枠２
，２^１の水平片１３，１５，１７には、各々片側
に凹凸面１８，１８，１８を形成し、隣接する前
記梯子側枠２，２^１の相対する開口部４，４の該
凹凸面１８，１８，１８を交互に嵌合し、且つ該
梯子側枠２，２^１の該開口部における伸長時の重
複部分に各々長孔部１０，１１を穿設すると共に
、該長孔部１０，１１に可動自在に嵌合する可動
係止片７を該開口部４の所定位置に装着したこと
を特徴とした伸縮梯子。 In a telescopic ladder in which a ladder main body is formed by sequentially telescopically connecting opposing ladder side frames, each of the ladder side frames 2, 2 ¹ . The ladder side frame 2 is configured in a mold.
, 2 ¹ , each of the horizontal pieces 13, 15, 17 has an uneven surface 18, 18, 18 formed on one side, and the uneven surface of the opposing opening 4, 4 of the adjacent ladder side frame 2, 2 ¹ 18, 18, 18 are fitted alternately, and elongated holes 10, 11 are respectively bored in the overlapping portions of the openings of the ladder side frames 2, ²¹ during expansion, and the elongated holes 10 , 11 is provided with a movable locking piece 7 which is movably fitted into the opening 4 at a predetermined position.