Variable resistor

Details Variable resistor Variable resistor

1998-05-29

1999-11-09

Donovan, Lincoln

Electrical resistors

Mechanically variable

Movable contact electrically adjustable over length of...

338164, 338202, H01C 1032

Patent

active

059822724

ABSTRACT:
A variable resistor reduces an inclination of a rotor caused by spring reaction of a slider, and prevents the lowering of contact pressure and deterioration in sliding performance of the slider. The resistor includes a rotor 3 and a slider 4 inside a case 1. The variable resistor also includes a resistor substrate 2 having a collector electrode 25 at a central portion of a surface thereof and having a resistive element 24 in a circular arc shape on an outer side of the collector electrode 25 substantially concentric with the central portion. The resistor substrate 2 is mounted to a lower end portion of the case 1. The slider 4 is provided with a first arm 42 having a substantially U-like shape at one end side of a base portion 41 attached to the rotor 3, having a first contact point portion 42a at a front end of the first arm which is brought into sliding contact with the resistive element 24 in the circular arc shape. The slider 4 is also provided with a second arm 43 and a second contact point portion 43a at a front end of the second arm which is brought into contact with the collector electrode. The arms are bent in directions opposed to each other, wherein the slider 4 is formed such that the first contact point portion 42a is disposed on the inner side of base portion 41 from a folded-bent portion 43b of the second arm 43, and the second contact point portion 43a is disposed on the inner side of the base portion 41 from a folded-bent portion 42b of the first arm 42. The second contact point portion 43a is folded back to the side of the resistor substrate 2.

REFERENCES:
patent: 4292660 (1981-09-01), Tasumi
patent: 4527147 (1985-07-01), Arakawa
patent: 4884052 (1989-11-01), Eitoku et al.
patent: 4998088 (1991-03-01), Masuda
patent: 5053742 (1991-10-01), Masuda
patent: 5293525 (1994-03-01), Yoshimura

Affiliated with

Also associated with

Rating

Variable resistor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Variable resistor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable resistor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1462001