Title:
ANCHOR SLEEVE FOR CONCRETE, AND ITS MANUFACTURING METHOD
Document Type and Number:
Japanese Patent JP3717164
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a high strength anchor sleeve for concrete only with a plastic working from a steel bar base stock.
SOLUTION: A plurality of recessed linear grooves (11a)(11b) for extension parallelly extended by prescribed lengths (L1)(L2) along a cylinder axial direction of a cylindrical body (10) having a fixed thickness (T), are plastically worked as a tapered shape so that the depth (G) depressed from the outer peripheral surface or/and the inner peripheral surface of the body (10) becomes gradually deeper towards the tip end side which is inserted into the embedding hole (44) of a concrete structure (C), and in such a way, the anchor sleeve is set so as to be possible to push and expand the above body (10) from the tip end surface of the relatively remaining thinnest portion (P).
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Inventors:
Tanizaki Ju
Application Number:
JP2003021432A
Publication Date:
November 16, 2005
Filing Date:
January 30, 2003
Export Citation:
Assignee:
KFC Inc.
International Classes:
B21K1/74; B21J5/06; (IPC1-7): B21K1/74; B21J5/06
Domestic Patent References:
| JP58000346A | ||||
| JP63207440A | ||||
| JP4073034U |
Attorney, Agent or Firm:
Kenji Yamashita