High speed reamer attachment for coaxial drive fastener gun

Details High speed reamer attachment for coaxial drive fastener gun High speed reamer attachment for coaxial drive fastener gun

1977-03-09

1978-04-04

Weidenfeld, Gil

Cutting by use of rotating axially moving tool

Means to drive tool

With specific tool structure

408126, 30500, 74801, 173 29, B23B 4704

Patent

active

040824756

ABSTRACT:
There is disclosed an attachment for a counter-rotating coaxial drive fastener gun having a cylindrical housing adapted to be threadably attached to the outer drive member of a coaxial drive fastener gun and having an inner cavity with a ring gear fixedly attached therein. A spider has a projecting end thereon adapted to engage the inner drive of the coaxial drive fastener gun and further has a plurality of planetary gears journaled therearound and is inserted into the inner cavity of the cylindrical housing with the planetary gears engaging the ring gear. A central drive gear of smaller diameter than the planetary gears is inserted into a central opening between the planetary gears and engages each of the planetary gears. A reamer is removably coupled to the central drive gear and rotated thereby. A locking mechanism is attached to the coaxial drive fastener gun to prevent the outer drive member from rotating and allowing the inner drive member to rotate and turn the spider at the speed of rotation of the fastener gun which, in turn, rotates the central drive gear and reamer at a faster speed of rotation.

REFERENCES:
patent: 1799393 (1931-04-01), Rylander
patent: 3134275 (1964-05-01), Davidson
patent: 3613853 (1971-08-01), Linthicum

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