Linear actuator using a screw mechanism

Details Linear actuator using a screw mechanism Linear actuator using a screw mechanism

1994-05-04

1996-06-25

Herrmann, Allan D.

Machine element or mechanism

Gearing

Rotary bodies

74 8914, 74 8915, 74459, 411277, F16H 2524, F16B 39284

Patent

active

055289517

ABSTRACT:
A linear actuator using a screw mechanism is provided which can be made free from play and can operate in a smooth fashion without involving any unacceptably rigorous tolerance control. An external thread of a screw rod is in threading engagement with an internal thread of a nut member for converting a rotational movement of the nut member into a linear movement of the screw rod, and a localized region of relatively tight fit is provided in the threading engagement. In particular, when the nut member is made of a molded plastic member, the localized region of relatively tight fit can be easily formed by grinding or cutting a part of the molding core for molding the internal thread of the nut member.

REFERENCES:
patent: 1902912 (1933-03-01), Sharp
patent: 2255384 (1941-09-01), Hood
patent: 2686546 (1954-08-01), MacLean, Jr.
patent: 2923339 (1960-02-01), Skidmore
patent: 3391721 (1968-07-01), Rosan
patent: 3674075 (1972-07-01), Hoegee
patent: 3831460 (1974-08-01), Linley, Jr.
patent: 4633732 (1987-01-01), Nishikawa et al.
patent: 4967618 (1990-11-01), Matsumoto et al.
patent: 5150872 (1992-09-01), Isomura

Affiliated with

Also associated with

Rating

Linear actuator using a screw mechanism does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Linear actuator using a screw mechanism, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Linear actuator using a screw mechanism will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2181358