Title:
CONNECTION METHOD OF SQUARE BLOCK AND CONNECTION METAL FITTING THEREOF
Document Type and Number:
Japanese Patent JP3051694
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To easily connect four connection rings, by laying square blocks projecting connection rings from the inclined side faces at the four corners and arranging the connection rings in the space at the respective block corners and inserting the free end of a spiral body into adjacent connection rings while rotating the free end of the spiral body and connecting both free ends of the spiral metal fitting projected from the oppositely arranged tow connection rings.
SOLUTION: One free end 3 of a spiral body A is inserted in a connection ring 11a from the upper side and the spiral body A is turned to the left side to insert the free end 3 into the adjacent connection ring 11b from the downside to the upside. Then the spiral body A is turned to the right side to insert the other free end 3 into the adjacent connection ring 11c from the upside to the downside and further pass it into the adjacent connection ring 11d from the downside to the upside. Then, both ends of a fastening bolt 5 are inserted into the through holes 4, 4 at the upper end of both free ends 3, 3 protruded upward from the connection rings 11b, 11d to pierce them. And a nut 8 is screwed on a screw part 7 projected from the through hole 4 and fasten them tightly to connect four connection rings 11a, 11b, 11c, 11d.
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Inventors:
Tokizo Sugiura
Application Number:
JP11331497A
Publication Date:
June 12, 2000
Filing Date:
March 25, 1997
Export Citation:
Assignee:
Sakurai Kenzai Sangyo Co., Ltd.
International Classes:
E02B3/14; E02D17/20; E02D29/02; (IPC1-7): E02B3/14; E02D17/20; E02D29/02
Other References:
【文献】登録実用新案3026847(JP,U)
Attorney, Agent or Firm:
Tatsuhiko Ishigaki