Machine element or mechanism – Mechanical movements – Reciprocating or oscillating to or from alternating rotary
Patent
1990-05-16
1991-12-24
Herrmann, Allan D.
Machine element or mechanism
Mechanical movements
Reciprocating or oscillating to or from alternating rotary
74 178, 74459, 74566, 277 80, 384 45, 384446, 403 82, 403DIG1, F16H 2702, F16C 2906, F16B 710
Patent
active
050741608
ABSTRACT:
A guide rail has an axially extending recessed groove opening upwardly to guide a nut block to move rectilinearly along the recessed groove when a ball screw shaft is rotated. A pair of strip-shaped magnets are secured to upper surfaces of both side walls of the guide rail. A flexible seal plate made of steel sheet is fixed to the guide rail with its opposite ends fastened to opposite ends of the guide rail. The seal plate slidably engages a guide recess formed in the upper surface of the nut block and crosses axially over the nut block forming an expanded portion along the outer surface of the nut block. A seal pressing member is attached to the nut block to press the expanded portion of the seal plate downwardly, and also to guide the seal plate towards the belt-shaped magnets at front and rear portions of the expanded portion so that the seal plate is attracted by the magnets at portions located before and behind the expanded portion, i.e., the nut block, to cover the recessed groove of the guide rail.
REFERENCES:
patent: 1937985 (1933-12-01), Schnuck
patent: 2303438 (1942-12-01), Cornelius
patent: 3820446 (1974-06-01), Granbom et al.
patent: 4481869 (1984-11-01), Garlapaty
patent: 4512208 (1985-04-01), Lipinski et al.
patent: 4552483 (1985-11-01), Anderka et al.
patent: 4582371 (1986-04-01), Mottate
patent: 4616885 (1986-10-01), Komiya
patent: 4704913 (1987-11-01), Zimmer
patent: 4706510 (1987-11-01), Zimmer
patent: 4859085 (1989-08-01), Buessinger et al.
Herrmann Allan D.
Laub David W.
Nippon Seiko Kabushiki Kaisha
LandOfFree
Feed unit apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Feed unit apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Feed unit apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-37333