Title:
SCREW ADVANCED MECHANISM
Document Type and Number:
Japanese Patent JPH04366050
Kind Code:
A
Abstract:
PURPOSE: To enlarge the stroke of a screw advanced mechanism.
CONSTITUTION: A screw advanced mechanism 4 is composed of a screw shaft 41, screw pipe 42 and nut member 43. The screw shaft 41 is formed on the outer peripheral surface with a screw 41a and rotatably supported on the lower end by a frame 1 by a bearing 44. The screw pipe 42 is formed on the inner peripheral surface with a screw 42a screwed on the screw 41a of the screw shaft 41 and formed on the outer peripheral surface with a screw 42b. A cap 45 is fitted on the upper end to be rotatably supported by a bearing 46 provided on a cross plate 35. The nut member 43 is formed with a screw 43a screwed in the screw 42b formed on the outer peripheral surface of the screw pipe 42.
More Like This:
| WO/2012/072389 | CAR JACK |
| JP2001206677 | SCREW JACK |
Inventors:
CHICHII YUKIO
KINOSHITA YUTAKA
HASEGAWA TADASHI
KINOSHITA YUTAKA
HASEGAWA TADASHI
Application Number:
JP16754991A
Publication Date:
December 17, 1992
Filing Date:
June 12, 1991
Export Citation:
Assignee:
SHOWA MFG
International Classes:
B66F3/10; B66F9/06; F16H25/20; (IPC1-7): B66F3/10; B66F9/06; F16H25/20
Attorney, Agent or Firm:
Yoichiro Shimoda (2 outside)