Spline and spline for rotary elements of multi spindle extruder

Details Spline and spline for rotary elements of multi spindle extruder Spline and spline for rotary elements of multi spindle extruder

1996-05-28

1998-02-10

Kim, Harry C.

Joints and connections

Interfitted members

Longitudinally splined or fluted rod

403404, 464158, F16B 700

Patent

active

057161593

ABSTRACT:
A tooth-profile shaped spline convenient to rotary elements of a multi spindle extruder is provided. The spline has a tooth profile which can be provided by deforming a continuous curve as if the x-axis ran on a center circle of predetermined radius. This continuous curve before deformation is a continuous line obtained by connecting a semi-circular or semi-oval line, the line being represented by an expression of x.sup.2 /a.sup.2 +y.sup.2 /b.sup.2 =1 in a defined area of y.gtoreq.0, with another semi-circular or semi-oval line, the another line being represented by the expression of x.sup.2 /a.sup.2 +y.sup.2 /b.sup.2 =1 in a defined area of y.ltoreq.0, by turns.

REFERENCES:
patent: 4149431 (1979-04-01), Rouverol
patent: 4302047 (1981-11-01), Esser
patent: 4357137 (1982-11-01), Brown
patent: 4673342 (1987-06-01), Saegusa
patent: 4922781 (1990-05-01), Peiji
patent: 4938731 (1990-07-01), Nguyen et al.

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