Driving mechanism for a pneumatic tool

Details Driving mechanism for a pneumatic tool Driving mechanism for a pneumatic tool

1997-05-29

1998-11-17

Smith, Scott A.

Tool driving or impacting

Impacting devices

With anvil arranged to transmit torsional impact to tool

173 935, B25D 1500

Patent

active

058364013

ABSTRACT:
A driving mechanism for a pneumatic tool includes a motor and an elongated connector. The motor has a body portion and a rotor shaft mounted rotatably to the body portion. The rotor shaft has an engaging section which extends beyond the body portion. The engaging section of the rotor shaft has an externally threaded portion adjacent to the body portion and a non-threaded portion which is connected to and which extends away from the externally threaded portion. The connector has first and second ends and an axial hole extending from the first end of the connector. The axial hole has an internally threaded section formed adjacent to the first end of the connector and a non-threaded section which is connected to the internally threaded section and which extends away from the first end toward the second end of the connector. The externally threaded portion of the rotor shaft engages threadedly the internally threaded section of the connector. The non-threaded portion of the rotor shaft engages fittingly the non-threaded section of the connector.

REFERENCES:
patent: 1391723 (1921-09-01), Du Sell
patent: 2373664 (1945-04-01), Emery
patent: 3187865 (1965-06-01), Blachowski
patent: 4836296 (1989-06-01), Biek
patent: 5080181 (1992-01-01), Tatsuno
patent: 5645130 (1997-07-01), Schoeps

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