Automatic can opener

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(Functional Operation)
(Components)
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<br />6. When the cycle is nearly completed the cutting wheel is retracted again and the automatic switch is released, stopping the opener.
<br />6. When the cycle is nearly completed the cutting wheel is retracted again and the automatic switch is released, stopping the opener.
<br />7. A magnet on the underside of the opener lifts the top of the can with it when the opener is lifted off.
<br />7. A magnet on the underside of the opener lifts the top of the can with it when the opener is lifted off.
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==Components==
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{| class="wikitable" border="1"
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|-
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! Part Number !! Part Name !! Qty !! Function
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|-
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! 001
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| Battery Casing || 1 ||
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*Encloses batteries
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*Protects against cutting wheel
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*Holds magnet
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|-
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! 002
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| Lower Shell || 1 ||
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*Holds Batteries
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*Holds internal components
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|-
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! 003
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| Upper Shell || 1 ||
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*Holds button in place
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*Holds internal components
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|-
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! 004
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| Screws(large) || 7 ||
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*Used to fasten top and bottom cases together
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|-
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! 005
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| Pressure switch || 2 ||
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*Safety feature to make sure battery casing is on
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*Safety feature to make sure opener is positioned on can
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|-
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! 006
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| Movement Wheel || 1 ||
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*Provides pressure so that cutting wheel can pierce can
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*Rotates opener around can
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|-
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! 007
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| Cap Screw || 1 ||
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*Attaches cutting wheel to gearing
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|-
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! 008
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| Washer || 1 ||
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*Provides adequate spacing between cap screw and cutting wheel
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|-
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! 009
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| Cutting Wheel || 1 ||
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*Cuts through can to remove lid
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|-
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! 010
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| Magnet || 1 ||
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*Keeps opener mounted to can lid
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*Lifts top of can off when opener is lifted off
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|-
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! 011
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| Reverse Switch || 1 ||
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*Reverses the direction of the motor
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|-
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! 012
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| Manual Pinion || 1 ||
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*Allows manual rotation of the gear system using a screwdriver
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|-
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! 013
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| Positive Terminal || 2 ||
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*Attaches to positive end of battery
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|-
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! 014
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| Negative Terminal || 2 ||
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*Attahced to negative end of battery
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|-
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! 015
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| Main button || 1 ||
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*Initially turns on power to engage motor
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|-
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! 016
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| Internal Switch || 2 ||
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*Completes circuit to power motor
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|-
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! 017
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| Switch Spacer || 1 ||
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*Spreads switch blades so it is only engaged when button is pressed
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|-
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! 018
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| Screw(small) || 1 ||
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*Mounts Switch Spacer to Upper Shell
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|-
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! 019
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| Motor || 1 ||
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*Drives geartrain, movement wheel, and cutting wheel
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|-
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! 020
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| Circuit Board || 1 ||
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*Allows reverse switch to reverse the motor's polarity
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|-
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! 021
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| Motor Pinion || 1 ||
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*Transfers motor rotation to geartrain
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|-
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! 022
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| Ratio Gears || 3 ||
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*Gear down motor output to usable speed and torque
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|-
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! 023
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| Movement Gear || 1 ||
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*Drives the movement wheel
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*Drives the cutting gear
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|-
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! 024
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| Bent Pin || 1 ||
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*Attaches movement gear to movement wheel
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|-
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! 025
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| Cutting Gear || 1 ||
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*Moves cutting wheel into position
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*Slowly rotates cutting wheel
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|-
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! 026
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| Slow Drive Gear || 1 ||
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*Moves the cutting gear slowly while engaged
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|-
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! 027
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| Shaft || 6 ||
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*Mounts gears
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|}

Revision as of 20:57, 28 January 2007

Contents

Product Dissection

The following notes were taken prior to and during product dissection.

Function/Purpose:

This can opener provides a low effort method to opening any size can.


Inputs/Outputs:

  • INPUTS: Battery Power
  • INPUTS: Positioning of opener
  • INPUTS: Press button until unit begins to move
  • OUTPUTS: Cut through can to open
  • OUTPUTS: Rotates around can

Use:

1. Opener is removed from storage place and placed in position on top of can.
2. Button is held until opener begins to move.
3. Let go and wait for opener to finish.

  • If the can is larger than a standard soup can multiple cycles must be used.

4. Lift the opener off of the can.

  • Because of the magnet, this also lifts the top off of the can.

5. Remove top of can from opener and replace opener in storage place.


Functional Operation:

1. Opener is positioned on can, which presses a safety switch.
2. Button on top is pressed to close main circuit using manual switch.
3. Motor engages and turns several gears to drive movement wheel and move the cutting wheel into position.

  • There are four gears used to gear down the movement wheel, with a fifth gear to further slow the cutting wheel.

4. As cutting wheel gets into position, the main circuit is closed using an automatic switch that is pressed by the top of the cutting wheel shaft.
5. The cutting wheel is even further geared down using a secondary portion to its gear. This allows it to rotate roughly ten degrees about six times through the cutting process.
6. When the cycle is nearly completed the cutting wheel is retracted again and the automatic switch is released, stopping the opener.
7. A magnet on the underside of the opener lifts the top of the can with it when the opener is lifted off.


Components

Part Number Part Name Qty Function
001 Battery Casing 1
  • Encloses batteries
  • Protects against cutting wheel
  • Holds magnet
002 Lower Shell 1
  • Holds Batteries
  • Holds internal components
003 Upper Shell 1
  • Holds button in place
  • Holds internal components
004 Screws(large) 7
  • Used to fasten top and bottom cases together
005 Pressure switch 2
  • Safety feature to make sure battery casing is on
  • Safety feature to make sure opener is positioned on can
006 Movement Wheel 1
  • Provides pressure so that cutting wheel can pierce can
  • Rotates opener around can
007 Cap Screw 1
  • Attaches cutting wheel to gearing
008 Washer 1
  • Provides adequate spacing between cap screw and cutting wheel
009 Cutting Wheel 1
  • Cuts through can to remove lid
010 Magnet 1
  • Keeps opener mounted to can lid
  • Lifts top of can off when opener is lifted off
011 Reverse Switch 1
  • Reverses the direction of the motor
012 Manual Pinion 1
  • Allows manual rotation of the gear system using a screwdriver
013 Positive Terminal 2
  • Attaches to positive end of battery
014 Negative Terminal 2
  • Attahced to negative end of battery
015 Main button 1
  • Initially turns on power to engage motor
016 Internal Switch 2
  • Completes circuit to power motor
017 Switch Spacer 1
  • Spreads switch blades so it is only engaged when button is pressed
018 Screw(small) 1
  • Mounts Switch Spacer to Upper Shell
019 Motor 1
  • Drives geartrain, movement wheel, and cutting wheel
020 Circuit Board 1
  • Allows reverse switch to reverse the motor's polarity
021 Motor Pinion 1
  • Transfers motor rotation to geartrain
022 Ratio Gears 3
  • Gear down motor output to usable speed and torque
023 Movement Gear 1
  • Drives the movement wheel
  • Drives the cutting gear
024 Bent Pin 1
  • Attaches movement gear to movement wheel
025 Cutting Gear 1
  • Moves cutting wheel into position
  • Slowly rotates cutting wheel
026 Slow Drive Gear 1
  • Moves the cutting gear slowly while engaged
027 Shaft 6
  • Mounts gears
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