Paper towel dispenser
From DDL Wiki
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| 02 || Front Housing Clip|| Holds housings together ||Fractured || text || text ||text ||text ||text ||text ||text ||text ||text | | 02 || Front Housing Clip|| Holds housings together ||Fractured || text || text ||text ||text ||text ||text ||text ||text ||text | ||
|- | |- | ||
- | | 03 || Front Housing Tab|| Fractured ||text || text ||text ||text ||text ||text ||text ||text ||text || | + | | 03 || Front Housing Tab|| Secures housing clip || Fractured ||text || text ||text ||text ||text ||text ||text ||text ||text || |
|- | |- | ||
- | | 04 || Rear Housing || Fractured ||text || text ||text ||text ||text ||text ||text ||text ||text || | + | | 04 || Rear Housing ||Holds mechanical components || Fractured ||text || text ||text ||text ||text ||text ||text ||text ||text || |
|- | |- | ||
- | | 05 || Paper Towel Holding Arm || | + | | 05 || Paper Towel Holding Arm ||Holds paper towel roll || Bent|| text ||text ||text ||text ||text ||text ||text ||text || |
|- | |- | ||
- | | 08 || Screw Anchor || Fractured ||text || text ||text ||text ||text ||text ||text ||text ||text || | + | | 08 || Screw Anchor || Holds screw in wall || Fractured ||text || text ||text ||text ||text ||text ||text ||text ||text || |
|- | |- | ||
- | | 09 || Paper Guide Tube || Failed ||text || text ||text ||text ||text ||text ||text ||text ||text | + | | 09 || Paper Guide Tube ||Guides paper towel to cutting cylinder || Failed ||text || text ||text ||text ||text ||text ||text ||text ||text |
|- | |- | ||
- | | 10 || Spring (uneven hooks)|| Broken ||text || text ||text ||text ||text ||text ||text ||text ||text | + | | 10 || Spring (uneven hooks)||Holds 09 in place || Broken ||text || text ||text ||text ||text ||text ||text ||text ||text |
|- | |- | ||
- | | 11 || Spring (even hooks) || Broken ||text || text ||text ||text ||text ||text ||text ||text ||text | + | | 11 || Spring (even hooks) || Holds lever to spindle housing ||Broken ||text || text ||text ||text ||text ||text ||text ||text ||text |
|- | |- | ||
- | | 13 || Red Screw Cap || Fractured || text || text ||text ||text ||text ||text ||text ||text ||text | + | | 13 || Red Screw Cap ||Hides screw in turning wheel || Fractured || text || text ||text ||text ||text ||text ||text ||text ||text |
|- | |- | ||
- | | 14 || Locking Spring || Broken ||text || text ||text ||text ||text ||text ||text ||text ||text | + | | 14 || Locking Spring ||Hides screw in turning wheel || Broken ||text || text ||text ||text ||text ||text ||text ||text ||text |
|- | |- | ||
- | | 15 || SRed Turning Wheel || Failed ||text || text ||text ||text ||text ||text ||text ||text ||text | + | | 15 || SRed Turning Wheel ||Turns main spindle || Failed ||text || text ||text ||text ||text ||text ||text ||text ||text |
|- | |- | ||
- | | 16 || Guide clips for ||text || text ||text ||text ||text ||text ||text ||text ||text | + | | 16 || Guide clips for 09 ||Guides paper on 09 ||text || text ||text ||text ||text ||text ||text ||text ||text |
|- | |- | ||
- | | 18 || Guide clips for ||text || text ||text ||text ||text ||text ||text ||text ||text | + | | 18 || Guide clips for 09||Connects spring to spindle ||text || text ||text ||text ||text ||text ||text ||text ||text |
|- | |- | ||
- | | 19 || Spring Connector ||text || text ||text ||text ||text ||text ||text ||text ||text | + | | 19 || Spring Connector ||text ||Connects two springs to lever arm || text ||text ||text ||text ||text ||text ||text ||text |
|- | |- | ||
- | | 20 || Rounded Spring Guide ||text || text ||text ||text ||text ||text ||text ||text ||text | + | | 20 || Rounded Spring Guide ||Angles spring to desired measurement ||text || text ||text ||text ||text ||text ||text ||text ||text |
|- | |- | ||
- | | 21 || Thin Paper Guide||text || text ||text ||text ||text ||text ||text ||text ||text | + | | 21 || Thin Paper Guide||text||Guides paper out of device || text ||text ||text ||text ||text ||text ||text ||text |
|- | |- | ||
- | | 22 || Front Spindle Housing ||text || text ||text ||text ||text ||text ||text ||text ||text | + | | 22 || Front Spindle Housing ||Final housing before paper leaves device ||text || text ||text ||text ||text ||text ||text ||text ||text |
|- | |- | ||
- | | 23 || Spindle Housing Back ||text || text ||text ||text ||text ||text ||text ||text ||text | + | | 23 || Spindle Housing Back ||Back of spindle housing ||text || text ||text ||text ||text ||text ||text ||text ||text |
|} | |} |
Revision as of 11:48, 16 September 2009
Contents |
Executive Summary
Stakeholders
There are five major stakeholders with regards to the paper towel dispenser: Manufacturer, retailer, customer, user, society. The main needs for the manufacturer are to reduce cost and create a reliable product. For the retailer, it is being able to sell a quality product. For the customer, it is making sure it is an affordable and reliable machine. For the customer, cleanliness and ease of use are paramount. Society plays a role with regards to how the use of paper towel affects the ecosystem and earth in general. Listed below are the stakeholders and their respective needs.
Paper Towel Manufacturer
- Material cost
- Manufacturing cost
- Assembly
- Transporting
- Standardize/minimize parts
Retailer
- Cost
- Storage
- Reliability
- Usability
- Transporting
Customer
- Cost
- Mounting
- Ease of use
- Reliability
- Aesthetics
User
- Ease of use / ergonomics
- Speed of operation
- Aesthetics
- Cleanliness
Society
- Environment
Usability Study
Parts List
DFMA Analysis
Design For Manufacture
Design For Assembly
FEMA Analysis
Part No. | Name | Function | Failure Mode | Effects of Failure | S | Causes of Failure | O | Design Controls | D | RPN | Recommended Actions | Responsibility | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
01 | Front Housing | Protects device from exterior | Fractured | text | text | text | text | text | text | text | text | text | |
02 | Front Housing Clip | Holds housings together | Fractured | text | text | text | text | text | text | text | text | text | |
03 | Front Housing Tab | Secures housing clip | Fractured | text | text | text | text | text | text | text | text | text | |
04 | Rear Housing | Holds mechanical components | Fractured | text | text | text | text | text | text | text | text | text | |
05 | Paper Towel Holding Arm | Holds paper towel roll | Bent | text | text | text | text | text | text | text | text | ||
08 | Screw Anchor | Holds screw in wall | Fractured | text | text | text | text | text | text | text | text | text | |
09 | Paper Guide Tube | Guides paper towel to cutting cylinder | Failed | text | text | text | text | text | text | text | text | text | |
10 | Spring (uneven hooks) | Holds 09 in place | Broken | text | text | text | text | text | text | text | text | text | |
11 | Spring (even hooks) | Holds lever to spindle housing | Broken | text | text | text | text | text | text | text | text | text | |
13 | Red Screw Cap | Hides screw in turning wheel | Fractured | text | text | text | text | text | text | text | text | text | |
14 | Locking Spring | Hides screw in turning wheel | Broken | text | text | text | text | text | text | text | text | text | |
15 | SRed Turning Wheel | Turns main spindle | Failed | text | text | text | text | text | text | text | text | text | |
16 | Guide clips for 09 | Guides paper on 09 | text | text | text | text | text | text | text | text | text | ||
18 | Guide clips for 09 | Connects spring to spindle | text | text | text | text | text | text | text | text | text | ||
19 | Spring Connector | text | Connects two springs to lever arm | text | text | text | text | text | text | text | text | ||
20 | Rounded Spring Guide | Angles spring to desired measurement | text | text | text | text | text | text | text | text | text | ||
21 | Thin Paper Guide | text | Guides paper out of device | text | text | text | text | text | text | text | text | ||
22 | Front Spindle Housing | Final housing before paper leaves device | text | text | text | text | text | text | text | text | text | ||
23 | Spindle Housing Back | Back of spindle housing | text | text | text | text | text | text | text | text | text |
DFE Analysis