JPS6441454U

JPS6441454U -

Info

Publication number: JPS6441454U
Application number: JP13628487U
Authority: JP
Priority date: 1987-09-08
Filing date: 1987-09-08
Publication date: 1989-03-13
Anticipated expiration: 2002-09-08
Also published as: JPH051472Y2

Description

[Brief explanation of the drawing]

第１図は本考案に係る昇降装置の実施例であつ
てプラツトフオームが階段状のときの側面図、第
２図は車止め板のみが起立した状態の側断面図、
第３図はプラツトフオーム展開状態の側断面図、
第４図はプラツトフオーム着地状態の側断面図、
第５図は昇降装置を装着する車両としてのバスを
示す側面図、第６図は第１の連結板を展開用平行
リンク機構の回動に追従させる追従機構の側面図
、第７図は第６図の―断面図、第８図は踏み
板を支える踏み板支持機構の側面図である。１，３…乗降口、１０…本体フレーム、１１…
サイドフレーム、１２…アツパーアーム、１３…
踏み板、１４，１５…連結板、１６…プラツトフ
オーム、１７…車止め板、２０…メインアーム、
２１…サブアーム、２７…昇降用油圧シリンダ、
３１…ロアーフレーム、３２，３３…リンク、３
５…展開用油圧シリンダ、４０…車止め用油圧シ
リンダ、５０…係合用突条、５１…取付板、５２
…ガイドローラー、５５…踏み板支えアーム、５
６…付加リンク。 Fig. 1 is a side view of an embodiment of the lifting device according to the present invention, in which the platform is in the form of steps, Fig. 2 is a side sectional view with only the car stopper plate standing up;
Figure 3 is a side sectional view of the platform in its deployed state;
Figure 4 is a side sectional view of the platform landing state.
Fig. 5 is a side view showing a bus as a vehicle equipped with a lifting device, Fig. 6 is a side view of a follow-up mechanism that makes the first connecting plate follow the rotation of the parallel link mechanism for deployment, and Fig. 7 is a side view of a bus as a vehicle equipped with a lifting device. 6 is a cross-sectional view, and FIG. 8 is a side view of the footboard support mechanism that supports the footboard. 1, 3...Gateway, 10...Main frame, 11...
Side frame, 12... Upper arm, 13...
Footboard, 14, 15...Connection plate, 16...Platform, 17...Car stop plate, 20...Main arm,
21...Sub arm, 27...Hydraulic cylinder for lifting and lowering,
31...Lower frame, 32, 33...Link, 3
5... Hydraulic cylinder for expansion, 40... Hydraulic cylinder for car stop, 50... Engagement protrusion, 51... Mounting plate, 52
...Guide roller, 55...Tread support arm, 5
6...Additional link.

Claims

[Scope of utility model registration request]

A main body frame fixed to the entrance/exit side of the vehicle,
It has an upper frame that is supported so as to be able to rise and fall freely with respect to the main body frame via a parallel link mechanism for lifting and lowering, a footboard, and a first connecting plate and a second connecting plate that are pivotally connected to both sides of the footboard, and a platform whose rear end is pivotally connected to the upper frame; a footplate-cum-vehicle stop plate provided at the tip of the platform so as to be able to rise and fall; and a connecting plate between the footplate and first and second connecting plates of the platform. a deploying parallel link mechanism for changing the folded state from a step-like folded state to a flat plate-like deployed state; a following mechanism for causing the first connecting plate to follow the rotation of the deploying parallel link mechanism; A lifting device characterized by comprising a footplate support mechanism that supports a footplate when the footboard is in the state.