Machine element or mechanism – Elements – Gear casings
Patent
1982-02-01
1984-10-02
Herrmann, Allan D.
Machine element or mechanism
Elements
Gear casings
173145, 74417, 81 5711, 29526R, 29451, 403326, 220319, F16H 5702, B23Q 5027, B25B 2500, B23P 1900
Patent
active
044740778
ABSTRACT:
A molded-plastic retaining member is mounted within the gear case or other internal housing member of a power tool and is keyed thereto. Screws pass through openings in the gear case cover and are received axially in respective bosses formed within the retaining member, thereby securing the gear case cover to the gear case. The gear case cover is formed with an internal hub, and locating ribs on the retaining member radially engage the hub to prevent the retaining member from disengaging the gear case, as the gear case cover is secured to the retaining member. Preferably, the retaining member comprises a partially-formed resilient ring which is molded from a suitable plastic material and is deformable during the assembly operation. Additionally, the internal hub on the gear case cover is provided with a bearing boss, and a bearing is mounted therein for journaling the rear portion of the output spindle. The assembly of the gear case and the gear case cover, and the components therein, are thereafter enclosed by a "clam-shell" outer housing.
REFERENCES:
patent: 1411422 (1922-04-01), Leece
patent: 2260712 (1941-10-01), Harrison
patent: 2506767 (1950-05-01), Bennett
patent: 2631551 (1954-03-01), Lawrence et al.
patent: 2678192 (1954-05-01), Ledbetter
patent: 2826095 (1958-03-01), Dirzius
patent: 2899850 (1959-08-01), Selby et al.
patent: 2976436 (1961-03-01), Anton
patent: 3208722 (1965-09-01), Rodriquez et al.
patent: 3357275 (1967-12-01), Green, Jr. et al.
patent: 3593878 (1971-07-01), Hertell
patent: 4011774 (1977-03-01), Moosberg
patent: 4331175 (1982-05-01), Brake et al.
patent: 4424004 (1984-01-01), Hiskes
Andrews Stephen B.
Black & Decker Inc.
Herrmann Allan D.
Sherer Ronald B.
Weinstein Harold
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