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A platform for research: civil engineering, architecture and urbanism
To provide the fall prevention device of a lifting door surely preventing fall of the lifting door, with an inexpensive and simple structure.SOLUTION: The fall prevention device of a lifting door comprises: a revolving shaft 3 provided at the upper edge of a furnace body opening 12 and opening or closing a lifting door 2 by normally and reversely rotating; at least one stopper body 5A, 5B fixed at a prescribed angular position of a circumference of the revolving shaft 3 and protruding outward in the radial direction of an outer periphery of the revolving shaft 3 and revolving integrally therewith; and a holding member 6 set at a furnace body side and detachably holding at least one regulator 7A, 7B extended into tip end revolution loci T1, T2 of the stopper body 5A, 5B. The pair of the stopper bodies 5A, 5B protrude with different length outward in the radial direction at different positions in the circumferential direction of the revolving shaft 3, and the regulator has a first regulator 7A extended into the tip end revolution locus T1 of the stopper body 5A relatively long protruded, and a second regulator 7B extended into the tip end revolution locus T2 of the stopper body 5B relatively short protruded, which are selectively held by the holding member 6.SELECTED DRAWING: Figure 2
【課題】安価かつ簡易な構造で昇降扉の落下を確実に防止できる昇降扉の落下防止装置を提供する。【解決手段】炉体開口部１２の上縁に設けられて、正逆回転して昇降扉２を開放ないし閉鎖作動させる回転軸３と、回転軸３の外周の、所定の角度位置に固定されて当該回転軸３の径方向外方へ突出しこれと一体に旋回する少なくとも一つのストッパ体５Ａ,５Ｂと、炉体側に設置されてストッパ体５Ａ,５Ｂの先端旋回軌跡Ｔ１，Ｔ２内に進出する少なくとも一つの規制体７Ａ，７Ｂを着脱可能に保持する保持部材６とを備える。ストッパ体５Ａ,５Ｂは、回転軸３の周方向の異なる位置で径方向外方へそれぞれ異なる長さで突出する一対が設けられ、規制体は、相対的に長く突出するストッパ体５Ａの先端旋回軌跡Ｔ１内に進出する第１規制体７Ａと、相対的に短く突出するストッパ体５Ｂの先端旋回軌跡Ｔ２内に進出する第２規制体７Ｂが設けられてこれらが選択的に保持部材６に保持される。【選択図】 図２
To provide the fall prevention device of a lifting door surely preventing fall of the lifting door, with an inexpensive and simple structure.SOLUTION: The fall prevention device of a lifting door comprises: a revolving shaft 3 provided at the upper edge of a furnace body opening 12 and opening or closing a lifting door 2 by normally and reversely rotating; at least one stopper body 5A, 5B fixed at a prescribed angular position of a circumference of the revolving shaft 3 and protruding outward in the radial direction of an outer periphery of the revolving shaft 3 and revolving integrally therewith; and a holding member 6 set at a furnace body side and detachably holding at least one regulator 7A, 7B extended into tip end revolution loci T1, T2 of the stopper body 5A, 5B. The pair of the stopper bodies 5A, 5B protrude with different length outward in the radial direction at different positions in the circumferential direction of the revolving shaft 3, and the regulator has a first regulator 7A extended into the tip end revolution locus T1 of the stopper body 5A relatively long protruded, and a second regulator 7B extended into the tip end revolution locus T2 of the stopper body 5B relatively short protruded, which are selectively held by the holding member 6.SELECTED DRAWING: Figure 2
【課題】安価かつ簡易な構造で昇降扉の落下を確実に防止できる昇降扉の落下防止装置を提供する。【解決手段】炉体開口部１２の上縁に設けられて、正逆回転して昇降扉２を開放ないし閉鎖作動させる回転軸３と、回転軸３の外周の、所定の角度位置に固定されて当該回転軸３の径方向外方へ突出しこれと一体に旋回する少なくとも一つのストッパ体５Ａ,５Ｂと、炉体側に設置されてストッパ体５Ａ,５Ｂの先端旋回軌跡Ｔ１，Ｔ２内に進出する少なくとも一つの規制体７Ａ，７Ｂを着脱可能に保持する保持部材６とを備える。ストッパ体５Ａ,５Ｂは、回転軸３の周方向の異なる位置で径方向外方へそれぞれ異なる長さで突出する一対が設けられ、規制体は、相対的に長く突出するストッパ体５Ａの先端旋回軌跡Ｔ１内に進出する第１規制体７Ａと、相対的に短く突出するストッパ体５Ｂの先端旋回軌跡Ｔ２内に進出する第２規制体７Ｂが設けられてこれらが選択的に保持部材６に保持される。【選択図】 図２
FALL PREVENTION DEVICE OF LIFTING DOOR
昇降扉の落下防止装置
SHIGA AKIRA (author)
2024-06-26
Patent
Electronic Resource
Japanese
IPC:
F27D
Einzelheiten oder Zubehör für Industrieöfen, Schachtöfen, Brennöfen oder Retorten, soweit sie nicht auf eine Ofenart eingeschränkt sind
,
DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
/
E06B
Feste oder bewegliche Abschlüsse für Öffnungen in Bauwerken, Fahrzeugen, Zäunen oder ähnlichen Einfriedungen allgemein, z.B. Türen, Fenster, Läden, Tore
,
FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES, OR LIKE ENCLOSURES, IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
/
F23M
Verkleidungen, Auskleidungen, Wände oder Türen besonders ausgebildet für Feuerräume oder Brennkammern, z.B. Feuerbrücken
,
CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES
/
F27B
Industrieöfen, Schachtöfen, Brennöfen, Retorten allgemein
,
FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL
| European Patent Office | 2021
Fall prevention fire ladder capable of automatically lifting
| European Patent Office | 2020