Press-in reversing knob

Details Press-in reversing knob Press-in reversing knob

1986-05-06

1988-08-23

Bonck, Rodney H.

192 clutches and power-stop control

Clutches

Automatic

16DIG30, 81 62, 81 631, F16D 4116, B25B 1346

Patent

active

047654490

ABSTRACT:
A press-in reversing knob for a ratchet wrench which has a self-contained retaining means. The reversing knob includes a generally cylindrical member having an annular flange at its upper end and resilient inwardly-deformable projections extending radially outward from its lower end. A cylindrical bore formed in the plug includes a coaxial annular retaining groove spaced downwardly from the top of the bore. As the reversing knob is pressed into the bore, the resilient projection is deformed inwardly by the walls of the bore until the projection engages the retaining groove and springs outwardly. The retaining groove retains the projection to prevent the reversing knob from becoming upwardly disengaged from the bore while accommodating rotational movement of the projection as the reversing knob is turned.

REFERENCES:
patent: 959690 (1910-05-01), Anderson
patent: 2139650 (1938-12-01), Anderson et al.
patent: 2188846 (1940-01-01), Rueb
patent: 2706424 (1955-04-01), Johnson
patent: 2706774 (1955-04-01), Bowman
patent: 3044591 (1962-07-01), Kilness
patent: 3290969 (1966-12-01), Bergquist et al.
patent: 3372612 (1968-03-01), Rozmus
patent: 3393587 (1968-07-01), Jolliff et al.
patent: 3438291 (1969-04-01), Bergquist
patent: 3503586 (1970-03-01), Bordes
patent: 4052768 (1977-10-01), Yamazaki et al.
patent: 4307632 (1981-12-01), Penner
patent: 4520697 (1985-06-01), Moetteli

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