Multi-purpose front end plate for motor of pneumatic tool

Details Multi-purpose front end plate for motor of pneumatic tool Multi-purpose front end plate for motor of pneumatic tool

1981-09-01

1983-10-25

Staab, Lawrence J.

Machine element or mechanism

Gearing

Plural power paths to and/or from gearing

173104, F16H 5710

Patent

active

044111738

ABSTRACT:
The front end plate for the motor of a portable pneumatic tool has an integral annular portion extending forwardly of a bearing seat in the end plate. An internal ring gear is formed within the annular extending portion and engages planetary gearing carried by an output spindle. The planetary gearing engages a pinion gear on the motor shaft, and the shaft is journaled in a bearing retained in the bearing seat in the end plate. The annular extending portion of the end plate has an outer cylindrical surface for piloting the counterbored rear portion of a housing within which the output spindle is journaled. The end plate is alined circumferentially with the motor housing, and independently thereof, the end plate is alined circumferentially with the cylindrical liner of the motor. As a result, the motor liner is automatically alined with the motor housing during the assembly of the tool. The end plate thus serves a variety of purposes or functions; and preferably, the end plate is sintered from a suitable material to improve reliability and to reduce overall manufacturing costs.

REFERENCES:
patent: 2159232 (1957-10-01), Shaff
patent: 2198921 (1940-04-01), Shaff
patent: 2470256 (1949-05-01), McIlory
patent: 3238848 (1963-04-01), Bent
patent: 3642389 (1972-02-01), Chambers
patent: 3901631 (1975-08-01), Wickham
Design News, "The Amplexologist", 3/13/61.

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