Quick setup expanding arbor for lamination assembly of an electr

Metal working – Means to assemble or disassemble – Means to assemble electrical device

Patent

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Details

Other Related Categories

414 27, 414788, 29596, B23P 1900, H01K 1502

Type

Patent

Status

active

Patent number

058966480

Description

ABSTRACT:
An expandable arbor is provided for assembling a plurality of laminas into a lamination, wherein each lamina has a central opening and a plurality of slots extending radially from the central opening. The arbor includes a base portion and an expandable core that is disposed to extend axially from the base portion. The arbor further includes a plurality of key holders disposed around the core. Each key holder is configured in the form of an elongated shaft that extends axially from the base portion and has a polygonal transverse cross-section. Each key holder is further configured with a plurality of faces, and each face defines a key receptacle therein for holding a key.

REFERENCES:
patent: 3378907 (1968-04-01), Dixon
patent: 4079512 (1978-03-01), Lakes

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