SHUTTER WINDING AND UNWINDING DEVICE

• Main Author: YAMAMOTO KUNIO
• Format: Patent
• Language: English; Japanese
• Published: 18.04.2019
• Subjects: DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; FIXED CONSTRUCTIONS; FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES,FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS,BLINDS, GATES; LADDERS

To provide a long-life shutter winding and unwinding device that further prolongs durable years of a shaft serving as a central axis for winding and unwinding a shutter.SOLUTION: A shutter winding and unwinding device 1 comprises: two pulleys fitted to a shaft, disposed separately from each other and provided rotatably with respect to the shaft; a link bar 5 having an inner cylinder 5a and an outer cylinder 5b, bridged between the two pulleys and formed so as to extend and contract in a longitudinal direction; a grease cap fitted to an end part 5c of both ends of the link bar; and a pump structure 7 for pushing out air. The pump structure includes: a disk-like member 5ba fixed inside the outer cylinder 5b for cutting off an interior of the outer cylinder in the longitudinal direction, and having a through-hole 5baa at a central axis of the link bar; a piston 5ad for sliding the interior of the outer cylinder in the longitudinal direction; and a connection member 5ac for connecting the piston with an end part of the inner cylinder. Grease is pushed out from the grease cap by extension and contraction of the link bar, and grease d is dripped on a shaft 3.SELECTED DRAWING: Figure 1 【課題】 本発明は、シャッターを巻き取り・繰り出しする中心軸であるシャフトの耐用年数をさらに延ばす高寿命なシャッター巻取繰出装置を提供する。【解決手段】 シャッター巻取繰出装置１は、シャフトに嵌着されて、互いに離間して配置され、シャフトに対して回転自在に設けられた２つのプーリと、内筒５ａと外筒５ｂを備え、２つのプーリ間に掛け渡された長手方向へ伸縮可能に形成されたリンク棒５と、リンク棒の両端の端部５ｃに嵌設されたグリスキャップと、空気を押し出すポンプ構造７と、このポンプ構造は、外筒５ｂの内部に固定されて外筒の内部を長手方向に遮断して、リンク棒の中心軸上に貫通孔５ｂａaを有する円盤状部材５ｂａと、外筒の内部を長手方向に摺動するピストン５ａｄと、ピストンを内筒の端部に接続する接続部材５ａｃを備え、リンク棒が伸縮することでグリスキャップからグリスが押し出されてシャフト３上にグリスｄが滴下される。【選択図】図１