Title:
SAFETY UNIT FOR FLOOR SURFACE OPENING
Document Type and Number:
Japanese Patent JPH0882101
Kind Code:
A
Abstract:
PURPOSE: To protect a worker from falling down into a floor surface opening resultant from a deviated foundation frame by fixing the foundation frame definitely at a specified position.
CONSTITUTION: A cross-linking member (45) is installed to opposed sides of a foundation frame (14) where a projected part engageable with an interior wall surface of a wall surface opening is installed to the tower part of the cross-linking part 45. The cross-linking part 45 is slidable in the extending direction of the two opposed members and arranged to be conformable to openings in various sizes.
Inventors:
OOTSUKI CHIKATERU
Application Number:
JP21680094A
Publication Date:
March 26, 1996
Filing Date:
September 12, 1994
Export Citation:
Assignee:
MAKI KOGYO KK
OTSUKI CHIKATERU
OTSUKI CHIKATERU
International Classes:
E01D15/00; E04G21/32; (IPC1-7): E04G21/32; E01D15/00
Attorney, Agent or Firm:
江原 省吾 （外２名）