Corner structure of resinous molded part

Details Corner structure of resinous molded part Corner structure of resinous molded part

1994-06-21

1995-12-19

Ryan, Patrick J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including sheet or component perpendicular to plane of web...

428 58, 428 60, 428 63, 428120, 428132, 428136, 428161, 428192, 4285428, 264138, 264318, B32B 900

Patent

active

054767059

ABSTRACT:
A corner structure of a resinous molded part includes a base portion and a pair of lever portions which are formed integrally with the base portion. The molded part is provided with cut-outs which are arranged at corners where the base portion intersects the lever portions. A thickness of a portion outside the recess is established to be larger than a thickness of another portion inside the cut-out. With the establishment of the thickness, the amount of the inward inclination of the lever portions derived from the differential shrinkage can be reduced since they are pulled outwardly due to the increased thickness of the outside portion, when the part is cooled.

REFERENCES:
patent: 3551940 (1971-01-01), Edison
patent: 3816181 (1974-06-01), Buckethal
patent: 3907193 (1975-09-01), Heller
patent: 4341307 (1982-07-01), Shyers
patent: 4430370 (1984-02-01), Gallagher

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