Latch and Hinge Design Review PREMCO Machine Co

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Latch and Hinge Design Review PREMCO Machine Co. Customer: Craig Mc. Donald By: Kyle

Latch and Hinge Design Review PREMCO Machine Co. Customer: Craig Mc. Donald By: Kyle Westmoreland, Louie Mysse, Luke Rust, Vinnie Di. Blasi

Design Requirements Latch Hinge PREMCO Competitor

Design Requirements Latch Hinge PREMCO Competitor

Musts n n Hinge n Must have be reversible for left or right side

Musts n n Hinge n Must have be reversible for left or right side attachment. n Must carry a minimum load of 300 lb. per pair. n Must meet 4 or 3 hole pattern of competitors. n Must have countersunk holes for ¼ in. screws. n Must reach offset height from flush to 1 ¾ in. n Must be aesthetically to PREMCO. Latch n Must have self closing action. n Must meet hole footprint of competitors. n Must be available with or without cylinder lock. n Must have countersunk holes for ¼ in. screws. , n Must have strike that ranges from flush to 2 ½ in. offset. n Must have inside safety release mechanism. n Must be aesthetically to PREMCO.

Shoulds n Hinge Should reach offsets of 1 7/8 and 2 in. n Should

Shoulds n Hinge Should reach offsets of 1 7/8 and 2 in. n Should be available with or without spring kit. n Blades should be able to be lifted off of hinge. n Should be able to be cam, or non cam lift design. n Should use nylar bushings. n

One Piece Insert Hinge n Highlights n Adjustable Inserts n Low Molding Costs n

One Piece Insert Hinge n Highlights n Adjustable Inserts n Low Molding Costs n 2 Blade Design

Two Piece Insert Hinge n Highlights n Adjustable Inserts n Low Molding Costs n

Two Piece Insert Hinge n Highlights n Adjustable Inserts n Low Molding Costs n 2 Blade Design

Shim Hinge n Highlights n 2 Blade Design n Shim Variability n More Rigid

Shim Hinge n Highlights n 2 Blade Design n Shim Variability n More Rigid Hinge Base

Hinge Selection n Insert Hinge n Pros n Shim Hinge n n Single Base

Hinge Selection n Insert Hinge n Pros n Shim Hinge n n Single Base n Internalized Spring n 2 Blades n Simple Internal Mechanism n Internalized Spring n Pros Cons n Large Insert n Longer Bolts n Longer Hinge Base n Difficult Reinstallation

Latch Design n Mini PREMCO Highlights

Latch Design n Mini PREMCO Highlights

Latch Design Conclusions n Pros Streamline Design n Handle Flush with Door n Few

Latch Design Conclusions n Pros Streamline Design n Handle Flush with Door n Few Internal Parts n Safety Release Mechanism n n Cons n Too Similar to Competitor

Development Needs Stress and Fatigue Analysis on Nylon Material n Spring Material and Dimensions

Development Needs Stress and Fatigue Analysis on Nylon Material n Spring Material and Dimensions n Test Stand Design and Loading n DFMEA of Modeled Prototype n Locking Mechanism for Latch n Insert Hinge Design Restraint n

Milestones n Summer 2005 Finalize System Level Design Drawings… 7/29/05 n Build Prototype Test

Milestones n Summer 2005 Finalize System Level Design Drawings… 7/29/05 n Build Prototype Test Stand……………. . 8/05/05 n Final Design Review…………. . 8/04/05 n n Fall 2005 Detailed Drawing Design Review………. . 9/15/05 n Detailed Drawing Package………………. 9/30/05 n Prototype………………. . . 10/7/05 n

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