Method of assembling a calibratable knob and skirt and a product

Details Method of assembling a calibratable knob and skirt and a product Method of assembling a calibratable knob and skirt and a product

1994-06-22

1995-10-24

Gorski, Joseph M.

Metal working

Method of mechanical manufacture

Assembling or joining

156155, 1563084, 29423, 29464, 29513, G05G 110

Patent

active

054599199

ABSTRACT:
A knob and skirt assembly having a dial which can be calibrated relative to a control shaft and easily assembled in the proper position of alignment. The assembly includes a knob having a handle portion and hub portion. The knob portion has a control shaft receiving socket at the outer end thereof. The handle portion has an axially facing annular rim. At least one arcuate segment of teeth is formed on the annular rim. A disk shaped skirt has a central opening which fits over and receives the hub of the knob. A shallow well is formed in the skirt surrounding the central opening. Teeth formed in at least one arcuate segment are positioned in the well to mesh with the teeth on the annular rim. Ribs on the knob are heated and bent over against the skirt to fasten the knob to the skirt and to frictionally resist rotation of the hub and the skirt relative to each other until a predetermined rotational force is applied. An indexing notch is formed in the central opening of the skirt at the peripheral edge thereof. An indexing post is formed on the handle and extends through the indexing notch when the handle and skirt are assembled to align the skirt and the handle. The indexing post is removed from the notch when the ribs are bent over the skirt.

REFERENCES:
patent: 4417483 (1983-11-01), Howie, Jr.
patent: 4417483 (1983-11-01), Howie, Jr.
patent: 4446811 (1984-05-01), Howie, Jr.
patent: 4736504 (1988-04-01), Jones
patent: 5141247 (1992-08-01), Barth
patent: 5181304 (1993-01-01), Piotrowski

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