Title:
油圧式作動拡張手段を備えた油圧機械式締付装置
Document Type and Number:
Japanese Patent JP2007504961
Kind Code:
A
Abstract:
Hydromechanical clamping device which in one end thereof is designed as a mandrel pin with an outer envelope surface onto which one or more tools may be mounted. The mandrel pin 5 comprises outer expanding means ( 6 ), the outer surface of which consisting of said envelope surface, with a relatively thin, radially expandable wall and a conical inner surface in the axial direction, the mandrel pin further comprising a centre pin ( 8 ), the outer diameter of which being smaller than 10 the diameter of the inner surface of said means, wherein in the space between the centre pin ( 8 ) and the expanding means there are arranged intermediate means ( 7 ) connected to a piston ( 9 ). The intermediate means ( 7 ) are displaceable in the axial direction by means of hydraulically operating means, 15 wherein the intermediate means ( 7 ) and the outer expanding means ( 6 ) have interacting conical surfaces which at axial displacement of the intermediate means in one direction cause radial expansion of the outer expanding means ( 6 ), wherein axial displacement of the intermediate means in the other 20 direction causes relief with radial contraction of the outer expanding means ( 6 ).
Inventors:
Rosberg, Niclas
Application Number:
JP2006526046A
Publication Date:
March 08, 2007
Filing Date:
September 10, 2004
Export Citation:
Assignee:
ATP Transmission Activolag
International Classes:
B23B31/40; B23B
Attorney, Agent or Firm:
Hisao Kobayashi
Kiyoshi Yasushima
Souji Sasaki
Noboru Omura
Takanashi Norio
Kiyoshi Yasushima
Souji Sasaki
Noboru Omura
Takanashi Norio