Title:
SAFETY NET FOR MANHOLE
Document Type and Number:
Japanese Patent JP3531818
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a safety net for a manhole facilitating the manufacture, formed into a soft and strong net as a whole, and surely securing the safety of a worker.
SOLUTION: This safety net for the manhole is so formed that flat-plate and belt-shaped synthetic fibers 8 are disposed into a grid shape and respective stacked parts 11 of vertical belt pieces 9 and lateral belt pieces 10 forming the grid are joined by machine-sewing or heat welding.
Inventors:
Takahashi, Eizo
Application Number:
JP2001237722A
Publication Date:
May 31, 2004
Filing Date:
August 06, 2001
Export Citation:
Assignee:
MIYAMA IND CORP
International Classes:
E02D29/12; (IPC1-7): E02D29/12
Attorney, Agent or Firm:
西村 幹男
Previous Patent: DIAZO COPYING MATERIAL, COPYING METHOD AND COPY IMAGE FORMING DEVICE
Next Patent: PILLAR STRUCTURE FOR AUTOMOBILE CARRIER
Next Patent: PILLAR STRUCTURE FOR AUTOMOBILE CARRIER