Title:
CUSHION MATERIAL
Document Type and Number:
Japanese Patent JP3526005
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To prevent the release of a cushion material from the mounting hole of a block during carrying and laying work by forming irregularities on the circumferential surface of the cylindrical part of the cushion material having the cylindrical part to be fitted to the mounting hole of the block, a bottom wall part integrally connected to the cylindrical part, and a swollen part formed on the surface side contact with a floor surface of the bottom wall part.
SOLUTION: A cushion material 5 consisting of an elastic material such as ethylene-vinyl acetate copolymer for a block 2 to be laid on a floor surface is provided with a cylindrical part 6 to be fitted to a mounting hole 4 formed on the leg part bottom surface of the block 2 and a bottom wall part 7 integrally connected to the cylindrical part 6. A swollen part 8 swollen to the side opposite to the cylindrical part 6 is formed on the surface side contact with a floor surface 1 of the bottom wall part 7, so that the bottom wall part 7 is set on the floor surface when the block 2 is laid on the floor surface 1. Irregularities 11 are formed on the circumferential surface of the cylindrical part 6 of the cushion material 5, so that the irregularities 11 are firmly frictionally engaged with the inside surface of the mounting hole 4 of the block 2 after the cylindrical part 6 is once fitted to the mounting hole 4.
Inventors:
Otsuka, Masaru
Application Number:
JP31988298A
Publication Date:
May 10, 2004
Filing Date:
October 23, 1998
Export Citation:
Assignee:
MEIWA IND CO LTD
International Classes:
E04F15/024; E04F15/18; (IPC1-7): E04F15/18; E04F15/024
Attorney, Agent or Firm:
星野 則夫