Senior Design Ideas

1
Senior Design Ideas

• Team INASAD
• Members
• Jose Medina Joseph Leone
• Andrew Merk Alex Sanders
• Michael Fox

2
Agenda

• Past Events
• Current Events
• Subsystem Conceptual Designs
• Future Events

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Past Events

• Group members individually brainstormed
  conceptual designs for subsystems
• 1-2 per subsystem
• Group met and discussed the different subsystems
• 2 designs were selected for each subsystem
• Jose and Michael were assigned to draw the
  different conceptual designs
• Joe, Andrew, and A.J. began the patent search

4
Bulb Clamping Subsystem

• Pincher Clamping System
• Consists of
• Two links
• Hinge
• Squeezed/opened by motor or pull cables
• High-grip material inside of the links to provide
  friction during rotation

Advantages Disadvantages
Gripping action in normal direction. Minimal rotation of support rod. Limited degrees of freedom.
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Bulb Clamping Subsystem

• Talon Clamping System
• Consists of
• 3 links
• 2 fixed links on bottom provide support
• 1 at the top moves to clamp bulb
• Squeezes/opens with a motor or pull cables
• The links are covered with a high-grip to provide
  friction during rotation

Advantages Disadvantages
One link at top to make insertion easier. Links covered with high-grip material to assist rotation. Talons must act in unison. Operation might require tilt of the support base.
6
Bulb Clamping Subsystem

• Alternative Options
• Pinchers
• Wraps around the end of the bulb
• Cable used to lock the pinchers into appropriate
  diameters
• Pincher
• Side of clamps are gears
• Pull cable attached that will close them and lock
  to different sizes.
• Scissor clamp
• Runs on a crank to tighten around the bulb
• Ring
• Pressure sensitive point that adjusts to the size
  of the bulb

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Bulb Rotation Subsystem

• Pull Cable Rotating System
• Consists of
• Handlebar
• Pull cable
• Rotating wheel
• Twisting handlebar provides torque to wheel
• Wheel provides the necessary torque to rotate the
  Bulb Clamping Subsystem

Advantages Disadvantages
Quantity of torque controlled by operator depending on bulb requirements. Simplicity High-maintenance
8
Bulb Rotation Subsystem

• Gear and Motor Rotating System
• Consists of
• Electric motor
• Driving gear or pinion
• Reduction gear
• Driving gear is fixed to the electric motor
• Reduction gear reduce the angular speed and turns
  Bulb Clamping Subsystem

Advantages Disadvantages
Motor started/stopped by user commands. Robust. Electronic controls required. Heavy. Complex.
9
Bulb Rotation Subsystem

• Alternative Options
• Hinge Bar System
• Raising/lowering bar connected to the clamping
  system at an angle
• Raising/lowering bar can be pulled down to
  cause the clamping system to rotate
• Delrin gear
• Split and machined
• The sides of the split gear would be spur geared
  for rotation

10
Bulb Alignment Subsystem

• Bulb Guiding System
• Consists of
• Tapered U shaped piece of metal
• Metal surrounds both the Bulb Turning and
  Rotating systems
• The tapered shape funnels the socket in to the
  correct position

Advantages Disadvantages
Would not require any electricity to function Allows a larger range of flexibility during initial positioning Difficult to see the socket If not aligned correctly could break the bulb
11
Bulb Alignment Subsystem

• Periscope Alignment System
• Consists of
• Set of two mirrors
• Hollow channel
• Mirrors are positioned inside of a hollow channel
  
• Mirrors create a periscope
• View windows are positioned at the top and bottom
  of the channel

Advantages Disadvantages
Alignment is achieved without necessity of user to look up. Reduces strains on neck. Bulky. Mirrors are fixed. Not many degrees of freedom.
12
Bulb Alignment Subsystem

• Alternative Options
• Laser Pointer
• Positioned below the gripper
• Spring pin system
• Manually adjusts for big adjustments
• Fine tuning adjustments with small wheel
• 2 mirrors at top of product show the socket
• Pulley system

13
Bulb Collecting/Safety Subsystem

• Crescent Moon Collecting System
• Consists of
• 3 half cylinder shaped collecting/safety pans
• Pan consists of three collinear parts
• Middle part is stationary
• End parts slide along middle section for varying
  sized bulbs
• Bulb could gently drop into the pan after removal

Advantages Disadvantages
Crescent moon shape would keep the bulb from sliding out the sides and capture shards if bulb is broken Plexiglas material would allow the operator the ability to see the bulb and socket through pan. Only holds a couple of bulbs at a time. Broken bulbs could occur if multiple bulbs are placed in the pan at one time.
14
Bulb Collecting/Safety Subsystem

• Bag Collecting System
• Consists of
• Transparent but rigid plastic bag
• 4 support rods
• Positioned under the Bulb Gripping and Turning
  devices
• Several bulbs could be stored in bag at one time

Advantages Disadvantages
Bulb would be gently dropped into the bag after removal Full bags could be removed and thrown away with the bulbs in them Bulbs could break if multiple bulbs are placed in one bag Multiple bulbs would increase the weight of the product
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Bulb Collecting/Safety Subsystem

• Alternative Options
• Fine net to catch glass pieces
• Work like a strainer
• Square Plexiglas box
• Adjustable length

16
Horizontal Telescoping Subsystem

• Push Pin Sliding System
• Consists of
• Bulb Collecting Safety Subsystem
• Spring loaded pins
• Strategically drilled holes
• Manually adjustable

Advantages Disadvantages
No electricity needed Holes predrilled for the different standard bulb lengths Could not be adjusted for odd length bulbs Over time the spring could wear out and break
17
Horizontal Telescoping Subsystem

• Rack and Pinion System
• Consists of
• Bulb Collecting Safety Subsystem
• rack and pinion system
• crank
• Pinion is attached to the stationary part of the
  system
• Rack is attached to the mobile part of the system
• Crank spins the pinion forcing the rack to slide
  back and forth

Advantages Disadvantages
Does not need electricity Allows for minor adjustments for odd sized light bulbs. Over time the gear threads could wear Over time the pinion could break off and separate from the rack
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Horizontal Telescoping Subsystem

• Alternative Options
• Spinning Screw Clamping System
• Lawn mower cut out locking device
• Clamps slide along a bar
• Clamp with push pin or tightening screw
• Drawer sliders

19
Vertical Motion Subsystem

• Pneumatic System
• Consists of
• Pneumatic cylinder
• Pneumatic extension
• Extension lowers or raises according to needed
  height

Advantages Disadvantages
Little manual labor required to rise. Raises in large or small increments Need substantial weight to lower it. Very long pneumatic cylinder.
20
Vertical Motion Subsystem

• Rack and Pinion Sliding System
• Consists of
• Worm (or possibly bar) rack
• Worm gear
• Crank.
• Rotation of crank drives the worm gear which in
  turn drives the worm

Advantages Disadvantages
Robust. Excellent range of adjustable heights. Requires manual labor to raise product
21
Vertical Motion Subsystem

• Alternative Options
• Attaching a pulley system to the light fixture
• Hinge system
• Swings from side to side in a half circular
  motion
• Adjustable spring loaded pin system

22
Support Subsystem

• Harness Support System
• Consists of
• Harness
• Support rod securing device
• Harness would be strapped to operators shoulders
  and waist
• Product would slide into the securing device
• Weight is distributed using leverage

Advantages Disadvantages
Allows extra mobility Allows the changing of bulbs which have non-movable objects under them Reduces the overall size for storage If changing multiple bulbs the operators arm, shoulders, or back could get tired Would require a low total weight of the product
23
Support Subsystem

• Tripod Support System
• Consists of
• Tripod
• Wheels
• Tripod material would be selected depending on
  resulting total weight of product
• Wheels provide mobility

Advantages Disadvantages
Allows for increased product weight Allows minimal to no physical effort when using the product Could provide a problem when trying to change bulbs over non-movable objects If product is to heavy pushing it on the wheels could be difficult
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Support Subsystem

• Alternative Options
• After market stands
• example field goal type stand.
• Two stands joined with bolt that can be
  separated.
• Moving cart
• Square based stand with wheels

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Grip and Turn Tool
Advantages
Individual height legs
Purely mechanical work
Light weight

Disadvantages
Not many DOF
Pull cables might get on the way when rising/lowering
Horizontal range limited
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Periscopic Electric Tool
Advantages
Pincher grip fine adjustment
Automatable gripping
Implements reliability of motors
Individual height legs

Disadvantages
Electric motors add weight
Not many DOF
More prone to breakage
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Bowing Tool
Advantages
Can be operated over obstacles
More DOF
Individual height legs

Disadvantages
More user physical work
Twist angle usage not intuitive
System can tip over with certain angles
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Hinge Supported Tool
Advantages
Can be operated over obstacles
Bulb rotation provided by user as desired
More DOF
Can be used from base or at hand level

Disadvantages
More user physical work
Attaching/detaching can get cumbersome
Attaching/detaching can pinch fingers
29
Push-rod Tool
Advantages
Individual height legs
Fine adjustment through 2 alignment devices
Purely mechanical work

Disadvantages
Limited rotation from bar
Potential of breaking bulb
Potentially Wobbly
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Future

• Select subsystem designs
• Continue patent search
• Begin discussing materials, sizes, etc. of product

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INASAD

• Fluorescent Light Changing System