PROBLEM TO BE SOLVED: To provide a two-stage extension home door device which can safely and surely perform a two-stage extension operation of a movable portion with a driving mechanism having an easy structure.SOLUTION: In a door portion 30, a second stage door 32 is slid and stored in a first stage door 31. A driving mechanism 40 includes: a first stage door driving section 41 including a main driving sheave 42 that is fixed and provided on a door pocket 10 and is rotated by an electric motor M, and a fixation belt 43 of which both ends are fixed to the first stage door 31 and that is driven by the main driving sheave 42; and a second stage door driving section 50 including a first stage rack and pinion mechanism 53 in which a first stage pinion gear 52 mounted on the first stage door 31 is engaged with a first rack gear 51 fixed and provided in the door pocket 10, an endless belt driving mechanism 58 having a driving side sheave 55 coaxial with the first stage pinion gear 52, and a connection fixation member 59 which is fixed to a bottom face portion or an upper face portion of the second stage door 32 and a rotation belt 57 of the endless belt driving mechanism 58 and connects both of the bottom face portion or the upper face portion and the rotation belt 57.SELECTED DRAWING: Figure 1
【課題】可動部の2段伸縮動作を簡単な構造の駆動機構で安全かつ確実に実施できる2段伸縮ホームドア装置を提供する。【解決手段】扉部30は第1段扉31の内部に第2段扉32がスライドして収納され、駆動機構40は、戸袋10に固定設置されて電動機Mにより回動する主駆動シーブ42、第1段扉31に両端を固定されて主駆動シーブ42により駆動される固定ベルト43を備えている第1段扉駆動部41と、戸袋10内に固定設置された第1段ラックギア51に第1段扉31に取り付けた第1段ピニオンギア52を噛合させた第1段ラック&ピニオン機構53と第1段ピニオンギア52と同軸の駆動側シーブ55を備えている無端ベルト駆動機構58、第2段扉32の底面部又は上面部及び無端ベルト駆動機構58の回動ベルト57に固定されて双方を連結する連結固定部材59を備えている第2段扉駆動部50と、を具備して構成される。【選択図】図1
TWO-STAGE EXTENSION HOME DOOR DEVICE
2段伸縮ホームドア装置
2016-04-28
Patent
Electronic Resource
Japanese