JPH0456537U

JPH0456537U -

Info

Publication number: JPH0456537U
Application number: JP9985490U
Authority: JP
Priority date: 1990-09-25
Filing date: 1990-09-25
Publication date: 1992-05-14
Anticipated expiration: 2005-09-25
Also published as: JP2516416Y2

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
てプラツトホームが階段状のときの側面図、第２
図はプラツトホームを省略して示す同正面図、第
３図はアツパーフレーム及びサイドフレームを昇
降させるための機構部分を示す側面図、第４図は
プラツトホームの展開縮小動作を説明する側面図
、第５図は展開用リンク機構をサイドフレームに
係止するためのロツク機構を示す側面図、第６図
は全体的な動作を説明する側面図、第７図は昇降
装置を装着する乗降車両の一例としての鉄道車両
の客車を示す側面図である。１……客車、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、１３Ａ，１３Ｂ……踏み板、１４Ａ，
１４Ｂ，１４Ｃ……連結板、１６……プラツトホ
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……テンシ
ヨンアーム、３３……コンプレツシヨンアーム、
３５……展開用油圧シリンダ、４０……車止め用
油圧シリンダ、５０……バー状カム、５２……ロ
ーラー、５３……開閉補助部材、５４……伸長ば
ね、６０……フツク、６２……係止ピン、６６…
…ロツク解除用油圧シリンダ、７０……ストツパ
板、７１……押下板、７５……スライドプレート
。 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 stairs;
The figure is a front view with the platform omitted; Figure 3 is a side view showing the mechanism for raising and lowering the upper frame and side frame; Figure 4 is a side view illustrating the expansion and contraction operation of the platform; Figure 5 is a side view showing a locking mechanism for locking the deployment link mechanism to the side frame, Figure 6 is a side view illustrating the overall operation, and Figure 7 is an example of a passenger vehicle equipped with a lifting device. FIG. 2 is a side view showing a passenger car of a railway vehicle. 1...Passenger car, 3...Enter/exit, 10...Main frame, 11...Side frame, 12...Upper arm, 13A, 13B...Treadboard, 14A,
14B, 14C... Connection plate, 16... Platform, 17... Car stop plate, 20... Main arm, 21... Sub arm, 27... Hydraulic cylinder for lifting, 31... Lower frame, 32... Tension arm , 33...compression arm,
35...Hydraulic cylinder for deployment, 40...Hydraulic cylinder for car stop, 50...Bar-shaped cam, 52...Roller, 53...Opening/closing auxiliary member, 54...Extension spring, 60...Hook, 62...Register Stop pin, 66...
... Hydraulic cylinder for unlocking, 70 ... Stopper plate, 71 ... Pressing plate, 75 ... Slide plate.

Claims

[Scope of Claim for Utility Model Registration] (1) A main body frame fixed to the entrance/exit side of a vehicle, an upper frame supported so as to be able to rise and fall freely with respect to the main body frame via a parallel link mechanism for elevating, and the upper frame. a platform having a side frame integrated on both sides of the upper frame, a platform having a footboard and a connecting plate pivotally connected to both sides of the upper frame, and having a rear end pivotally connected to the upper frame; a pair of parallel or approximately parallel tension arms and compression arms each having one end pivotally connected to the upper frame; each has a lower frame that is pivotally connected,
a deploying link mechanism for changing the step plate and the connecting plate of the platform from a step-like folded state to a flat plate-like unfolded state by pivotally attaching the platform end to the lower frame end; A cam is fixed to either the tension arm or the compression arm, and a cam follower that can freely come into contact with the cam is provided on a connecting plate whose rear end is pivotally connected to the upper frame. An opening/closing auxiliary member for assisting the bending of the footboard is pivotally connected to the arm, and a connecting plate and either the tension arm or the compression arm are pivotally connected to the footboard on the front end side of the platform. A lifting device characterized by having an extension spring stretched between. (2) A main body frame fixed to the entrance/exit side of the vehicle, an upper frame supported so as to be able to rise and fall freely with respect to the main body frame via a parallel link mechanism for elevating, a first connecting plate, and a first connecting plate. a platform formed by sequentially connecting a footboard, a second connecting plate, a second footboard and a third connecting plate, and having a rear end pivotally connected to the upper frame; A car stop plate that also serves as a footboard; a parallel or approximately parallel pair of tension arms and compression arms each having one end pivotally connected to the upper frame; It has a lower frame to be worn,
a deploying link mechanism for changing the respective footboards and connecting plates of the platform from a step-like folded state to a flat-plate-like unfolded state by pivotally attaching the platform end to the lower frame end; A cam is fixed to either the tension arm or the compression arm, and a cam follower that can freely come into contact with the cam is provided on a first connecting plate whose rear end is pivotally connected to the upper frame, and the tension arm and compression arm are fixed to each other. An opening/closing auxiliary member that assists in bending the first footboard is pivotally connected to the compression arm, and extends between the second connecting plate and either the tension arm or the compression arm. A lifting device characterized by a tensioned spring. (3) A locking mechanism is provided between the deploying link mechanism and the side frame to lock the deploying link mechanism to the side frame when the platform is in a flat plate-like deployed state. 2. The lifting device according to 2. (4) A stopper plate is attached to the upper surface of the upper frame so as to be able to stand up freely by a spring, and the stopper plate is flattened by a push-down plate fixed to one of the parallel links at the upper limit position of the parallel link for elevating. The elevating device according to claim 1 or 2, wherein the elevating device is in a prone state. (5) A slide plate is fixed to at least one of the parallel links for elevation, and the slide plate is interposed between the link and the side frame at the upper limit position of the parallel link for elevation without rattling. The elevating device according to claim 1 or 2, further comprising: