Car jack
From DDL Wiki
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#Crank arm end placed into eyelet or car. | #Crank arm end placed into eyelet or car. | ||
#Crank arm held up in one hand and rotated clockwise with the other. | #Crank arm held up in one hand and rotated clockwise with the other. | ||
| - | #When upward motion of jack gets close to car frame, user aligns jack as necessary make sure it | + | #When upward motion of jack gets close to car frame, user aligns jack as necessary make sure it is securely aligned with the pinch weld on the car's frame. |
#User continues to rotate crank arm as the jack lifts the car until the desired height is reached. | #User continues to rotate crank arm as the jack lifts the car until the desired height is reached. | ||
#After the user is done changing the tire the crank arm is rotated counter-clockwise until the jack is completely closed | #After the user is done changing the tire the crank arm is rotated counter-clockwise until the jack is completely closed | ||
Revision as of 21:50, 28 January 2007
Contents |
About
This is the project Wiki for Team 8 in 24-441 Engineering Design Course. The product we have chosen to analyze is a car jack.
Group Members
- Matt Wasserman
- Alberto Guzman
- Saran Soongsawang
Product Dissection
Documentation of Team 8's Product Dissection
Function
- Typically used to lift up the corner of a car, normally for changing a tire.
Input
- Crank, which rotates threaded rod
Output
- Vertical motion up or down that locks in place
Normal Use
- User kneels down in next to car.
- Jack is placed flat under car.
- Crank arm end placed into eyelet or car.
- Crank arm held up in one hand and rotated clockwise with the other.
- When upward motion of jack gets close to car frame, user aligns jack as necessary make sure it is securely aligned with the pinch weld on the car's frame.
- User continues to rotate crank arm as the jack lifts the car until the desired height is reached.
- After the user is done changing the tire the crank arm is rotated counter-clockwise until the jack is completely closed
