Electric contacting device
AssigneeNissan Motor Co., Ltd.
InventorsNaoki Ogawa, Kazuo Ikawa
Life of this patent
Estimating the term…
Abstract
A first annular member provided with at least two different shaped conductive spring arms is fixedly and coaxially connected to a rotatable member for rotatable movement therewith the two spring arms having different characteristic frequencies respectively. A second annular member provided with an annular conductive rail is connected to a relatively stationary member so as to be coaxially spaced apart from the first annular member. The free ends of the conductive spring arms are urged into sliding contact with the annular conductive rail.
Claims19
An electric contacting device for providing continuous electric connection between first and second electric devices respectively mounted on a rotatable member rotatable about its axis and a relatively stationary member, said electric contacting device comprising:
- a first annular member coaxially securely mounted on said rotatable member;
- a second annular member adapted to connect to said relatively stationary member so as to be coaxially spaced apart from said first annular member;
- a first conductive annular plate coaxially mounted on said second annular member and electrically connected to said second electric device;
- and
- at least two first conductive spring arms mounted on said first annular member on a first imaginary annular portion which is coaxial with said first annular member, said first conductive spring arms being urged into sliding contact with said first conductive annular plate at the free ends thereof and electrically connected to said first electric device, further said first conductive spring arms being different in size to each other so as to respectively have different characteristic frequencies.
An electric contacting device for providing continuous electrical connection between an electrical gas generating device of an air-cushion mounted on a portion of a steering wheel and an impact detecting device mounted on a relatively stationary portion of a motor vehicle, said electric contacting device comprising:
- a first annular member coaxially and securely mounted on a back portion of said steering wheel;
- a second annular member adapted to connect to said relatively stationary member so as to coaxially space apart from said first annular member;
- first and second conductive annular plates coaxially mounted on said second annular member in a spaced relationship and electrically individually connected to said impact detecting device;
- and
- at least two first spring arms and at least two second spring arms, of conductive materials, mounted on said first annular member on first and second imaginary spaced annular portions which are coaxial with said first annular member, said first and second spring arms being urged into sliding contact with said first and second conductive annular plates respectively at the free ends thereof and electrically individually connected to said electrical gas generating device, further said first and second spring arms being different in size to each other so as to have different characteristic frequencies respectively.
Dependencies are inferred from the claim text.