JPH0450541U

JPH0450541U -

Info

Publication number: JPH0450541U
Application number: JP9270490U
Authority: JP
Priority date: 1990-09-05
Filing date: 1990-09-05
Publication date: 1992-04-28

Description

[Brief explanation of the drawing]

第１図は本考案の実施例に係る安全装置を含む
自動ステツプ装置の制御系を示すブロツク線図、
第２図はその自動ステツプ装置を示す説明図、第
３図は第１図に示す制御系の動作を示すフローチ
ヤート、第４図ａは本考案の実施例に係る具体的
な回路を示す回路図、第４図ｂはその各部の波形
を示す波形図、第５図は従来技術を示す説明図で
ある。図面中、３ａ，３ｂはレバー、４ａ，４ｂ，４
ｃ，４ｄはピン、５は支持枠、６はステツプ、７
は障害物、８はセフテイスイツチ、１０は制御部
、１１は駆動部、１２はリンク機構である。 FIG. 1 is a block diagram showing a control system of an automatic step device including a safety device according to an embodiment of the present invention;
FIG. 2 is an explanatory diagram showing the automatic step device, FIG. 3 is a flowchart showing the operation of the control system shown in FIG. 1, and FIG. 4a is a circuit showing a specific circuit according to an embodiment of the present invention. 4B is a waveform diagram showing the waveforms of each part, and FIG. 5 is an explanatory diagram showing the prior art. In the drawing, 3a, 3b are levers, 4a, 4b, 4
c, 4d are pins, 5 is a support frame, 6 is a step, 7
8 is a safety switch, 10 is a control section, 11 is a drive section, and 12 is a link mechanism.

Claims

[Scope of utility model registration request]

The step of an automatic step device is adapted to cause a step stored under the floor of a vehicle or the like to protrude outward from a side surface of the vehicle body by operating a link mechanism in conjunction with the drive of a drive unit, thereby allowing the step to be used for getting on and off the vehicle. An automatic step comprising: a safety switch which is disposed at the tip of the stepper and operates when a horizontal load is applied toward the vehicle body; and when the safety switch is in operation, the drive of the drive unit is locked. Equipment safety equipment.