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Title:
OPENING AND CLOSING METHOD AND DEVICE OF COMPANIONWAY DOOR PANEL ON TEMPORARY SCAFFOLD
Document Type and Number:
Japanese Patent JP2016089362
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a safe opening and closing technique of a companionway door plate on a temporary scaffold without requiring an operator to open and close the door plate by one hand when going up and down.SOLUTION: A scaffold board 2 with a companionway 3 is assembled to a storey state. Ends 12a,16a of a first wire 12 and a second wire 16, respectively, are fixed on a free side of a door plate 5 on a temporary scaffold 1 in which the door plate 5 is connected to the companionway 3 of each scaffold board 2, so that the door plate can open at 90 degrees, by hinge connection and a ladder 6 continuing to a lower level is connected. The other end 12b of the first wire 12 is suspended to the lower level through an upper face and a hinge connection side of the door plate 5, and a weight 15 with a required weight W is fixed to the suspended end 12b. The other end 16b of the second wire 16 is suspended from a lower face of the door plate 5 to the lower level. The door plate 5 is kept at the open position by the weight W of the first wire 12 until a force in a closing direction is applied to the door plate 5 or the second wire 16 when the door plate 5 is opened. The door plate 5 is kept at a close position by a self weight M of the door plate 5 until a force in opening direction is applied to the door plate 5 or the first wire 12 when the door plate 5 is closed.SELECTED DRAWING: Figure 1

Inventors:
ISHIBASHI YASUYUKI
TAKIGUCHI NORIO
GOKAN JUNJI
KANETO TAKASHI
Application Number:
JP2014221246A
Publication Date:
May 23, 2016
Filing Date:
October 30, 2014
Export Citation:
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Assignee:
KAJIMA CORP
International Classes:
E04G5/08; E04G5/10; E04G7/26
Domestic Patent References:
JP2003105967A2003-04-09
JP3108694U2005-04-28
JP2011094386A2011-05-12
Foreign References:
US20050077107A12005-04-14
Attorney, Agent or Firm:
Atsushi Ichito
Reijiro Ichihigashi