Structure for mounting an operating member of an electrical part

Details Structure for mounting an operating member of an electrical part Structure for mounting an operating member of an electrical part

1997-11-19

1999-03-30

Walberg, Teresa

Electrical resistors

Mechanically variable

Movable contact electrically adjustable over length of...

H01C 1030

Patent

active

058894616

ABSTRACT:
An electrical part including a step provided at a housing-facing side of an operating portion of an operating shaft, which protrudes externally from the housing, with the outside diameter of the step being smaller than the outside diameter of the operating portion. Thus, the load, produced when an operating member is being caulked to an end of the operating shaft, can be exerted on a flange surface at the step, so that even when the operating member is caulked to the operating shaft, the performance of the electrical part is not affected. Such an electrical part has been constructed in view of a conventional problem described below. When an attempt is being made to caulk an operating member to an operating shaft incorporated in a housing of a rotary sensor, or electrical part, to form a conventional rotary sensor. In this case, a sliding element bearing mounting portion at a side of the operating shaft, which is disposed in the housing, is suspended in mid-air in the housing, so that when a load W produced when caulking an end of the operating shaft, a force which tries to move the operating shaft rearward acts thereon, as a result of which the operating shaft tries to push the bearing in the housing rearward, thereby breaking the internal portion of the housing retaining the bearing.

REFERENCES:
patent: 3795882 (1974-03-01), Tokubo et al.
patent: 3902152 (1975-08-01), Van Benthuysen et al.
patent: 4295119 (1981-10-01), Kasashima et al.
patent: 4355293 (1982-10-01), Driscoll
patent: 4403211 (1983-09-01), Shibata et al.
patent: 4430634 (1984-02-01), Hufford et al.
patent: 4739300 (1988-04-01), Kuratani et al.
patent: 5567337 (1996-10-01), Edwards et al.

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