Flexible printed circuit assembly with torsionly rotated conduct

Electricity: conductors and insulators – Conduits – cables or conductors – Preformed panel circuit arrangement

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

174268, 361398, 361408, 439 31, 439165, H05K 100

Patent

active

048854301

ABSTRACT:
Conductors of a flexible printed circuit routed through a hollow two axis articulated hinge allow a calculator with rotating case halves to possess a keyboard portion in each half of the case. The conductors routed through the hollow articulated hinge are generally centered about one axis of hinge rotation for approximately half the length of the axis, whereupon they transition by either a U-turn or a jog to continue as centered about the other axis of hinge rotation. The conductors may be an integral part of a flexible membrane keyboard assembly having portions located in both halves of the calculator's case. Strain reliefs at the locations where the conductors traverse the case halves, and two in the hinge, at about the center thereof, limit and apportion the torsional flexing experienced by the conductors. The torsional flexing experienced by the flexible conductors increases the number of cycles of rotation they can undergo without breaking, as compared to conventional bending. The hollow articulated hinge allows one case half to rotate one full revolution about the other, so that the calculator can be opened and held in one hand. By being within the hollow hinge the conductors are protected from injury.

REFERENCES:
patent: 3629783 (1971-12-01), Holzwarth
patent: 4028509 (1977-06-01), Zurcher
patent: 4104728 (1978-08-01), Kasubuchi
patent: 4264962 (1981-04-01), Kodaira
patent: 4314117 (1982-02-01), Ditzig
patent: 4497036 (1985-01-01), Dunn
patent: 4517660 (1985-05-01), Fushimoto
patent: 4571456 (1986-02-01), Paulsen et al.
patent: 4667299 (1987-05-01), Dunn
patent: 4730146 (1988-03-01), Maser et al.
patent: 4742183 (1988-05-01), Soloway et al.
Lyman, Jerry; Flexible Circuits Bend to Designer's Will; Electronics; Sep. 15, 1977; 97-105.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Flexible printed circuit assembly with torsionly rotated conduct does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Flexible printed circuit assembly with torsionly rotated conduct, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flexible printed circuit assembly with torsionly rotated conduct will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2035768

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.