Umbrella

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==Umbrella==
==Umbrella==
Basic introduction information. 'Contents' box is created automatically. To skip  directly to a section, use [[Umbrella#FMEA]] to create a link.
Basic introduction information. 'Contents' box is created automatically. To skip  directly to a section, use [[Umbrella#FMEA]] to create a link.
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 +
==Parts List==
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{| {{table}} border="1" cellpadding = "3"
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| align="center" style="background:#f0f0f0;"|'''Part #'''
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| align="center" style="background:#f0f0f0;"|'''Part Name'''
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| align="center" style="background:#f0f0f0;"|'''Qty'''
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| align="center" style="background:#f0f0f0;"|'''Weight'''
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| align="center" style="background:#f0f0f0;"|'''Function'''
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| align="center" style="background:#f0f0f0;"|'''Manufacturing Process'''
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| align="center" style="background:#f0f0f0;"|'''Material'''
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| align="center" style="background:#f0f0f0;"|'''Picture'''
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|-
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| 1||Shaft||1||||Main support unit for umbrela||Laminated, turned||Wood||
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|-
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| 2||Handle||1||||Provides a comfortable grip for shaft||Laminated, warped||Wood||
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|-
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| 3||Tip||1||||Protects shaft & Aesthetic||injection molded||Plastic||
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|-
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| 4||Top Cap||1||||Holds canopy to shaft||Stamped||Steel||
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|-
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| 5||Top Cap Retention Pin||1||||Attaches top cap to shaft||Formed||Steel||
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|-
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| 6||Top Cap Skirt||1||||Prevents water leakage around top cap||Woven||Nylon||
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|-
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| 7||Rider Limit Pin||1||||Prevents upper assembly rider from traveling out of range||Formed||Steel||
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|-
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| 8||Rider Latch||2||||Locks rider in place at top and bottom of range||Stamped||Steel||
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|-
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| 9||Rider Latch Pin||2||||Attaches rider latch to shaft||Extruded||Steel||
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|-
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| 10||Canopy section||8||||Keeps water from entering area below umbrella||Woven||Nylon||
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|-
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| 11||Canopy Latch Strap||1||||Thins trap to wrap around canopy when closed||Woven||Nylon||
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|-
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| 12||Canopy Latch Strap Velcro||1||||Allows canopy latch strap to attach to itself||                            ||Velcro||
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|-
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| 13||Upper Hub||1||||Attaches arms to shaft||injection moulded||Plastic - abs?||
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|-
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| 14||Hub Pin||1||||Attaches upper hub to shaft||Formed||Steel||
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|-
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| 15||Bumper||1||||Reduces jarring at end of rider travel||injection moulded||Rubber||
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|-
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| 16||Connecting wire||2||||Attaches arms to upper hub and rider||Extruded||Aluminum||
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|-
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| 17||Rider||1||||Attaches arm support rod to shaft; allows motion along shaft and attaches to latch||injection moulded||Plastic||
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|-
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| 18||Arm Mainshaft||8||||Attaches canopy to upper hub||Extruded, stamped||Steel||
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|-
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| 19||Arm Support Rod||8||||Attaches rider to arm mainshaft||Stamped, formed||Steel||
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|-
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| 20||Arm Support Rod Insert||16||||Inserts into end of support rod; adds strength at crimp point||Extruded||Steel||
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|-
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| 21||Arm Endcap||8||||Covers exposed end of arm mainshaft||Die cast||Steel||
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|-
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| 22||Short string||16||||Loops between canopy and arm mainshaft/endcap to provide attachment||Spun||Cotton||
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|-
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| 23||Arm Joint Connector||8||||Connects arm mainshaft and support rod, allows rotation between the two||Stamped, crimped||Steel||
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|-
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| 24||Arm Joint Connector Pin||8||||Connects arm joint connector to support rod||Extruded||Brass||
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|}
==DFA==
==DFA==
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If you don't want something formatted, try using these <nowiki> HTML tags.  Then you can put things like [[Main_Page]] </nowiki> into the document.
If you don't want something formatted, try using these <nowiki> HTML tags.  Then you can put things like [[Main_Page]] </nowiki> into the document.
==FMEA==
==FMEA==
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{| {{table}} border="1" cellpadding = "3"
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| align="center" style="background:#f0f0f0;"|'''Item or Function'''
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| align="center" style="background:#f0f0f0;"|''' Failure Mode'''
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| align="center" style="background:#f0f0f0;"|''' Effects of Failure'''
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| align="center" style="background:#f0f0f0;"|''' S'''
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| align="center" style="background:#f0f0f0;"|''' Causes of Failure'''
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| align="center" style="background:#f0f0f0;"|''' O'''
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| align="center" style="background:#f0f0f0;"|''' Design Controls'''
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| align="center" style="background:#f0f0f0;"|''' D'''
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| align="center" style="background:#f0f0f0;"|''' RPN'''
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| align="center" style="background:#f0f0f0;"|''' Recommended Actions'''
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| align="center" style="background:#f0f0f0;"|''' Responsibility'''
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|-
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| Shaft||Splintering||Decreased shaft strength||5||Wear||3||Coating or finish on shaft||4||60||||
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|-
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| ||||Potential safety hazard to user||||||||Material choice||||||||
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|-
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| ||||||||||||Durability testing||||||||
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|-
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| ||Breakage||Product is inoperable||8||Inappropriate stresses on shaft||1||Material Quality||5||40||||
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|-
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| ||||||||Impact||||Robust Design||||||||
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|-
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| ||Rot||Reduced Strength||3||Poor Protective Coating||1||Coating Process Control||5||15||||
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|-
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| Handle||Splintering||Decreased handle strength||7||Wear||4||Coating or finish on handle||4||112||||
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|-
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| ||||Potential safety hazard to user||||||||Material choice||||||||
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|-
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| ||||||||||||Durability testing||||||||
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|-
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| ||Breakage||Product is inoperable||7||Impact||1||Material Quality||5||35||||
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|-
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| ||||||||||||Robust Design||||||||
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|-
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| ||Rot||Reduced Strength||3||Poor Protective Coating||1||Coating Process Control||5||15||||
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|-
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| Tip||Loss of Protection||Degredation of Shaft||2||Wear||4||Material choice||7||56||||
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|-
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| ||||||||||||Part Design||||||||
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|-
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| Top Cap||Corrosion||Decrease In Aesthetics||2||Oxidation||2||Material choice/Coating||5||20||||
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|-
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| Top Cap Retention Pin||||||||||||||||||||
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|-
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| Top Cap Skirt||||||||||||||||||||
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|-
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| Rider Limit Pin||||||||||||||||||||
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|-
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| Rider Latch||Bending||Latch fails to operate||8||Inappropriate Loading||1||Part Design||2||16||||
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|-
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| ||Jamming||Latch fails to operate||8||Corrosion/Foreign Debris/Poor Assembly||2||Tolerance control||4||64||||
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|-
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| Rider Latch Pin||Loss||Potential Loss of Latch||5||Vibration/Poor Assembly||1||Proper Assembly||2||10||||
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|-
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| Canopy section||Tear||Leak in Umbrella||7||Improper Manufacturing/Improper Storage by Consumer||5||Material Selection/Manufacturing Control||4||140||||
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|-
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| ||Seam Failure||Leak in Umbrella||7||Improper Manufacturing||3||Manufacturing Controls||6||126||||
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|-
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| Canopy Latch Strap||Seam Failure||Inability to strap umbrella||5||Improper Manufacturing||3||Manufacturing Controls||6||90||||
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|-
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| Canopy Latch Strap Velcro||||||||||||||||||||
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|-
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| Upper Hub||||||||||||||||||||
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|-
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| Hub Pin||Loss||Upper Hub not longer attached to shaft||8||Improper Tolerancing/Manufacturing||1||Proper Tolerancing/Manufacturing||2||16||||
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|-
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| Bumper||||||||||||||||||||
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|-
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| Connecting wire||Breakage||Arms disconnect from shaft||8||Wear||1||Coating/Material Selection||6||48||||
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|-
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| Rider||Button Breakage||Latch more difficult to operate||6||Fatigue||2||Proper Tolerancing/Manufacturing||3||36||||
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|-
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| Arm Mainshaft||Plastic Yielding||Deformed umbrella shape/trouble closing||7||Excessive Loading||6||Part Design/Material Selection||4||168||||
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|-
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| Arm Support Rod||Plastic Yielding||Deformed umbrella shape/trouble closing||8||Excessive Loading/Impact||6||Part Design/Material Selection/Manufacturing||4||192||||
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|-
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| Arm Support Rod Insert||||||||||||||||||||
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|-
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| Arm Endcap||Disassociation from Arm||Partial Canopy Detatchment/Exposed Rod||7||Insufficient Crimping/Tolerances||5||Manufacturing and Assembly Controls||3||105||||
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|-
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| Short string||Snap||Partial Canopy Detatchment||7||Excessive Loading/Defective Materials/Poor Manufacturing||3||Material Quality/Manufacturing||5||105||||
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|-
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| Arm Joint Connector||Plastic Yielding||Non-smooth operation||2||Excessive Loading||2||Part Design/Material Selection/Manufacturing||2||8||||
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|-
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| ||Seperation from Arm||Impaired operation of umbrella||8||Improper Manufacturing||3||Manufacturing and Assembly Controls||3||72||||
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|-
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| Arm Joint Connector Pin||||||||||||||||||||
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|}
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Revision as of 11:50, 19 September 2008

Contents

Umbrella

Basic introduction information. 'Contents' box is created automatically. To skip directly to a section, use Umbrella#FMEA to create a link.

Parts List

Part # Part Name Qty Weight Function Manufacturing Process Material Picture
1Shaft1Main support unit for umbrelaLaminated, turnedWood
2Handle1Provides a comfortable grip for shaftLaminated, warpedWood
3Tip1Protects shaft & Aestheticinjection moldedPlastic
4Top Cap1Holds canopy to shaftStampedSteel
5Top Cap Retention Pin1Attaches top cap to shaftFormedSteel
6Top Cap Skirt1Prevents water leakage around top capWovenNylon
7Rider Limit Pin1Prevents upper assembly rider from traveling out of rangeFormedSteel
8Rider Latch2Locks rider in place at top and bottom of rangeStampedSteel
9Rider Latch Pin2Attaches rider latch to shaftExtrudedSteel
10Canopy section8Keeps water from entering area below umbrellaWovenNylon
11Canopy Latch Strap1Thins trap to wrap around canopy when closedWovenNylon
12Canopy Latch Strap Velcro1Allows canopy latch strap to attach to itself Velcro
13Upper Hub1Attaches arms to shaftinjection mouldedPlastic - abs?
14Hub Pin1Attaches upper hub to shaftFormedSteel
15Bumper1Reduces jarring at end of rider travelinjection mouldedRubber
16Connecting wire2Attaches arms to upper hub and riderExtrudedAluminum
17Rider1Attaches arm support rod to shaft; allows motion along shaft and attaches to latchinjection mouldedPlastic
18Arm Mainshaft8Attaches canopy to upper hubExtruded, stampedSteel
19Arm Support Rod8Attaches rider to arm mainshaftStamped, formedSteel
20Arm Support Rod Insert16Inserts into end of support rod; adds strength at crimp pointExtrudedSteel
21Arm Endcap8Covers exposed end of arm mainshaftDie castSteel
22Short string16Loops between canopy and arm mainshaft/endcap to provide attachmentSpunCotton
23Arm Joint Connector8Connects arm mainshaft and support rod, allows rotation between the twoStamped, crimpedSteel
24Arm Joint Connector Pin8Connects arm joint connector to support rodExtrudedBrass

DFA

Bullet list to identify major DFA decisions.

Starting with a colon indents a paragraph.
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    • Thing 1
    • Thing 2
    • Thing 3
  • Here are some things that they could improve on.
    • Thing 1
    • Thing 2
      • Thing 2.1
      • Thing 2.2
    • Thing 3

DFM

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FMEA

Item or Function Failure Mode Effects of Failure S Causes of Failure O Design Controls D RPN Recommended Actions Responsibility
ShaftSplinteringDecreased shaft strength5Wear3Coating or finish on shaft460
Potential safety hazard to userMaterial choice
Durability testing
BreakageProduct is inoperable8Inappropriate stresses on shaft1Material Quality540
ImpactRobust Design
RotReduced Strength3Poor Protective Coating1Coating Process Control515
HandleSplinteringDecreased handle strength7Wear4Coating or finish on handle4112
Potential safety hazard to userMaterial choice
Durability testing
BreakageProduct is inoperable7Impact1Material Quality535
Robust Design
RotReduced Strength3Poor Protective Coating1Coating Process Control515
TipLoss of ProtectionDegredation of Shaft2Wear4Material choice756
Part Design
Top CapCorrosionDecrease In Aesthetics2Oxidation2Material choice/Coating520
Top Cap Retention Pin
Top Cap Skirt
Rider Limit Pin
Rider LatchBendingLatch fails to operate8Inappropriate Loading1Part Design216
JammingLatch fails to operate8Corrosion/Foreign Debris/Poor Assembly2Tolerance control464
Rider Latch PinLossPotential Loss of Latch5Vibration/Poor Assembly1Proper Assembly210
Canopy sectionTearLeak in Umbrella7Improper Manufacturing/Improper Storage by Consumer5Material Selection/Manufacturing Control4140
Seam FailureLeak in Umbrella7Improper Manufacturing3Manufacturing Controls6126
Canopy Latch StrapSeam FailureInability to strap umbrella5Improper Manufacturing3Manufacturing Controls690
Canopy Latch Strap Velcro
Upper Hub
Hub PinLossUpper Hub not longer attached to shaft8Improper Tolerancing/Manufacturing1Proper Tolerancing/Manufacturing216
Bumper
Connecting wireBreakageArms disconnect from shaft8Wear1Coating/Material Selection648
RiderButton BreakageLatch more difficult to operate6Fatigue2Proper Tolerancing/Manufacturing336
Arm MainshaftPlastic YieldingDeformed umbrella shape/trouble closing7Excessive Loading6Part Design/Material Selection4168
Arm Support RodPlastic YieldingDeformed umbrella shape/trouble closing8Excessive Loading/Impact6Part Design/Material Selection/Manufacturing4192
Arm Support Rod Insert
Arm EndcapDisassociation from ArmPartial Canopy Detatchment/Exposed Rod7Insufficient Crimping/Tolerances5Manufacturing and Assembly Controls3105
Short stringSnapPartial Canopy Detatchment7Excessive Loading/Defective Materials/Poor Manufacturing3Material Quality/Manufacturing5105
Arm Joint ConnectorPlastic YieldingNon-smooth operation2Excessive Loading2Part Design/Material Selection/Manufacturing28
Seperation from ArmImpaired operation of umbrella8Improper Manufacturing3Manufacturing and Assembly Controls372
Arm Joint Connector Pin

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