B - Operations – Transporting – 21 – D
Patent
B - Operations, Transporting
21
D
26/189
B21D 45/00 (2006.01) B21J 5/12 (2006.01) B21K 1/76 (2006.01)
Patent
CA 1245042
ABSTRACT A tool, and method, for making the outer member of a constant velocity universal joint of the cross-groove type, the outer member being of hollow form having in its interior two sets of helical grooves of opposite hand. The tool comprises first and second parts 15, 21 mounted for axial movement relative to one another, the parts having portions 23, 17 which can be brought into and out of mutual inter- calation by such axial movement, the portions 17 carrying projections 18 which form the grooves of one hand and the portions 23 carrying projections 24 which form the grooves of` the other hand. When the tool is used to produce a joint outer member by being placed in a hollow blank which is forced through a die to form the material of the blank around the projections, the tool is withdrawn from the formed blank by helically withdrawing the portion 23, with its projections 24 moving along the grooves formed thereby, followed by helically withdrawing the portion 17 with its projections 18 moving along the grooves which they have formed.
438384
James Stephen R.
Langford Edward A.
Neale Reginald L.
Pfd Limited
Ridout & Maybee Llp
LandOfFree
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