Title:
【発明の名称】緩衝式の流体作動型のファスナ取り付け工具
Document Type and Number:
Japanese Patent JP2809502
Kind Code:
B2
Abstract:
A push-pull tool for setting multi-piece fasteners includes a piston that is movable back and forth within a cylinder in response to fluid forces on opposite faces of the piston. One of the fluids is an air-oil foam mixture that acts essentially as an incompressible liquid force-transmitter, while being somewhat compressible so as to absorb shock loadings associated with rapid piston movements. A check valve is included in the system to admit atmospheric air into the air-oil foam mixture, to thereby partially compensate for oil leakage that might inadvertantly take place across the piston seals.
Inventors:
HOOTO GEERII ERU
KEERIN JON JEI
KEERIN JON JEI
Application Number:
JP50137790A
Publication Date:
October 08, 1998
Filing Date:
December 04, 1989
Export Citation:
Assignee:
HATSUKU INTERN INC
International Classes:
B23P11/00; B21J15/00; B21J15/02; B21J15/06; B21J15/16; B21J15/22; (IPC1-7): B21J15/22
Domestic Patent References:
| JP62220240A |
Foreign References:
| US4633068A |
Attorney, Agent or Firm:
Kazuo Shamoto (5 outside)