JPH03122935U

JPH03122935U -

Info

Publication number: JPH03122935U
Application number: JP3258090U
Authority: JP
Priority date: 1990-03-28
Filing date: 1990-03-28
Publication date: 1991-12-13

Description

[Brief explanation of drawings]

第１図は本考案による昇降用はしごを備えた給
油自動車を示した平面図、第２図は本考案による
昇降用はしごの作業台テーブルを下降させた状態
を示した側面図、第３図は作業台テーブルを上昇
させた状態を示した昇降用はしごの側面図、第４
図は上部はしごと作業台テーブルとの取付け部分
を示した平面図、第５図は踏み板とリンクプレー
トと、アームと上部はしごフレームとの取付部を
示した詳細平面図、第６図は作業台テーブルを下
降させたときのはしごフレーム、リンクプレート
および踏み板の折りたたみ状態を示した詳細図、
第７図は作業台テーブルを上昇させたときのはし
ごフレーム、リンクプレートおよび踏み板の状態
を示した詳細図、第８図ａ，ｂは従来の昇降用は
しごを示した概略側面図である。３……上部はしご、４……下部はしご、５……
上段はしごフレーム、６……下段はしごフレーム
、７……上部リンクプレート、８……下部リンク
プレート、９……踏み板、１０……作業台テーブ
ル、１２……車両本体、１３……上部はしごフレ
ーム取付軸、１４……下部はしごフレーム取付軸
、１５……アーム、１６……ローラー、１９……
上部はしご手すりの固定支柱、２０……下部はし
ご手すりの固定支柱、２３……手すり本体。 Fig. 1 is a plan view showing a refueling vehicle equipped with a lifting ladder according to the present invention, Fig. 2 is a side view showing the work platform table of the lifting ladder according to the invention in a lowered state, and Fig. 3 is a plan view showing a refueling vehicle equipped with a lifting ladder according to the present invention. Side view of the lifting ladder showing the work platform table in the raised position, No. 4
The figure is a plan view showing the attachment part between the upper ladder and the workbench table, Figure 5 is a detailed plan view showing the attachment part between the tread plate, the link plate, the arm and the upper ladder frame, and Figure 6 is the workbench. Detailed view showing the folded state of the ladder frame, link plates and tread when the table is lowered;
FIG. 7 is a detailed view showing the state of the ladder frame, link plate, and footboard when the workbench table is raised, and FIGS. 8a and 8b are schematic side views showing a conventional lifting ladder. 3... Upper ladder, 4... Lower ladder, 5...
Upper ladder frame, 6...lower ladder frame, 7...upper link plate, 8...lower link plate, 9...tread plate, 10...workbench table, 12...vehicle body, 13...upper ladder frame installation Shaft, 14... Lower ladder frame mounting shaft, 15... Arm, 16... Roller, 19...
Fixed support for upper ladder handrail, 20...Fixed support for lower ladder handrail, 23... Handrail body.

Claims

[Claim for Utility Model Registration] In a refueling vehicle that is equipped with a horizontal work platform that can be raised and lowered, a pair of lower ladder frames and lower link plates are arranged parallel to each other, and a plurality of parallel footboards are arranged between them. A lower ladder is constructed by arranging the lower ladder frame and the lower link plate to form a link mechanism, and the lower ends of the lower ladder frame and the lower link plate are pivotally connected to the vehicle body, while a pair of channel members with grooves facing outward An upper ladder is constructed by arranging an upper ladder frame and a pair of upper link plates in parallel, and arranging a plurality of treads between them to form a parallel link mechanism. The upper ends of the ladder frame and the upper link plate are pivotally connected to the workbench table, and the lower ladder frame of the lower ladder and the upper ladder frame of the upper ladder are connected by arms having equal arm lengths. A ladder for lifting and lowering refueling vehicles.