COMPACT CRUTCH

Samantha MaioranaAlex Policht

Alan Strimbu

Table of ContentsProblem StatementHypothesisJustificationBackgroundDesign SolutionTest ProcedureTest Data ChartsConclusionAcknowledgements

Problem Statement (Initial)Hospital crutches are bulky and hard to use in

school and crowded places.

Problem Statement (Modified)Crutches are very bulky; and therefore, they are

difficult to store in crowded settings when the crutches are not in use.

HypothesisIf the crutch could compact to ½ of its original

size, it will be easier to manage the storage when not in use.

Justification

12%

88%

Not a ProblemProblem

Would you consider it difficult to store crutches in crowded settings when they are not in use?

Background Tubular Metal

CrutchPatent number:

724,382

Background Telescopic Crutch

and Walking Stick Patent number:

4,809,725

Background Foldable Crutch

Patent number: 5,325,879

Intent

IntentTubular Crutch

IntentTubular Crutch

+ Telescopic Crutch

IntentTubular Crutch

+ Telescopic Crutch+ Foldable Crutch

---------------------------

IntentTubular Crutch

+ Telescopic Crutch+ Foldable Crutch

--------------------------- “Compact Crutch”

Design Solution

Design Solution

Design Solution

Test Procedure Obtain the following items:

WeightsFastening DeviceBucketHookData Collection SheetCrutchVideo CameraClamps

Test Procedure Set Up

Make sure all parts of the crutch are working properly

Secure the crutch vertically between two sturdy tables

Have Data Collection Sheet ready

Test Procedure Testing: Underarm Rest

Using the hook, hang the bucket from the underarm rest of the crutch

Carefully add weight at constant increments Stop if the crutch breaks, bends, cracks, etc.

Test Procedure Testing: Handle

Using the hook, hang the bucket from the handle of the crutch

Carefully add weight at constant incrementsStop if the crutch breaks, bends, cracks, etc.

Test Procedure Final Inspection

Check the crutch for any damages such as bends, cracks, scratches, etc.

Slide tubes up and downFold leg up and downCheck all locking mechanisms

Test Procedure Final Size:

Measure the crutch fully extended, collapsed. Document measurements

Conclusion Crutch folds to ½ size for storage Crutch supports full load from extended

position Crutch supports full load from underarm

rest and handle with zero deformation If everybody switches to our crutch - then

crutch clutter will be cut in the future!

Acknowledgements Experts

Donald StrimbuGeorge HudetzMike Geyer Jay Tedeschi Derrick SmithMike Barbanente