Electric motor driven toggle mold clamping device

Details Electric motor driven toggle mold clamping device Electric motor driven toggle mold clamping device

2007-05-29

2007-05-29

Mackey, James P. (Department: 1722)

Plastic article or earthenware shaping or treating: apparatus

With means lubricating cooperating apparatus parts

C425S451600, C425S593000

Reexamination Certificate

active

10878298

ABSTRACT:
The purpose of the invention is to prevent a sticking of lubricant to a ball screw shaft and a scattering to the circumstance in an electromotive toggle mold clamping device.This invention relates to the electric motor driven toggle mold clamping device wherein a ball nut member is screwed together to the ball screw shaft which rotates by an electric motor to advance and retreat freely and a cross head is fixed to the ball nut member, a cylindrical or polygonal cylindrical member which has a cylindrical body shape or square cylindrical body shape with a length and a size of placing the ball screw shaft with a required gap while retreating the cross head, is attached to the front ends of the cross head concentrically with the ball screw shaft. The ball screw shaft protruding from the cross head is placed in the cylindrical or polygonal cylindrical member having a required gap.

REFERENCES:
patent: 2403092 (1946-07-01), Lear
patent: 3508300 (1970-04-01), Allard et al.
patent: 6711963 (2004-03-01), Yabe
patent: 6865963 (2005-03-01), Takanohashi et al.
patent: 3199363 (2001-06-01), None
patent: 2001-248707 (2001-09-01), None
patent: 2003-083416 (2003-03-01), None

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