×

Transmission apparatus between rotary body and fixed body

  • US 5,413,492 A
  • Filed: 08/30/1993
  • Issued: 05/09/1995
  • Est. Priority Date: 09/04/1992
  • Status: Expired due to Term
First Claim
Patent Images

1. A transmission apparatus between a rotary body and a fixed body comprising:

  • an outside case having a flange portion and an outer tubular portion,an inside case having a flange portion and an inner tubular portion disposed at the inner circumference side of said outside case and rotatable with respect to said outside case,at least one flat cable with an inner end connected to the outer circumference of the inner tubular portion and an outer end connected to the inner circumference of the outer tubular portion and for exchanging signals between a rotary body and a fixed body, andat least one dummy cable with an inner end connected to the outer circumference of the inner tubular portion and an outer end connected to the inner circumference of the outer tubular portion at different connecting positions from connecting positions of said flat cable in the circumferential direction,said flat cable and said dummy cable forming winding direction inversion portions at portions midway in the longitudinal directions of the cables in the space defined by the outer tubular portion, inner tubular portion, and flange portions and further being wound up and housed so that the respective winding direction inversion portions are at intervals in the circumferential direction,a first stopper member having a projecting portion being provided on said at least one dummy cable near a said connection portion to the inner tubular portion, a first engagement groove housing the first stopper member being formed at the outer circumference of the inner tubular portion, and a first depression portion in which the projecting portion of the first stopper member enters when the first stopper member leaves the first engagement groove being formed at the inner circumference portion of the flange portion of the outside case.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×