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

2 Past Events Current Events Subsystem Conceptual Designs Future Events Agenda:

3 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

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 AdvantagesDisadvantages  Gripping action in normal direction.  Minimal rotation of support rod.  Limited degrees of freedom.

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 AdvantagesDisadvantages  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.

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

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 AdvantagesDisadvantages  Quantity of torque controlled by operator depending on bulb requirements.  Simplicity  High-maintenance

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 AdvantagesDisadvantages  Motor started/stopped by user commands.  Robust.  Electronic controls required.  Heavy.  Complex.

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

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 AdvantagesDisadvantages  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

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 AdvantagesDisadvantages  Alignment is achieved without necessity of user to look up.  Reduces strains on neck.  Bulky.  Mirrors are fixed. Not many degrees of freedom.

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

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 AdvantagesDisadvantages  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.

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 AdvantagesDisadvantages  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

Bulb Collecting/Safety Subsystem Alternative Options Fine net to catch glass pieces Work like a strainer Square Plexiglas box Adjustable length

Horizontal Telescoping Subsystem Push Pin Sliding System Consists of: Bulb Collecting Safety Subsystem Spring loaded pins Strategically drilled holes Manually adjustable AdvantagesDisadvantages  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

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 AdvantagesDisadvantages  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

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

Vertical Motion Subsystem Pneumatic System Consists of: Pneumatic cylinder Pneumatic extension Extension lowers or raises according to needed height AdvantagesDisadvantages  Little manual labor required to rise.  Raises in large or small increments  Need substantial weight to lower it.  Very long pneumatic cylinder.

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 AdvantagesDisadvantages  Robust.  Excellent range of adjustable heights.  Requires manual labor to raise product

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

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 AdvantagesDisadvantages  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

Support Subsystem Tripod Support System Consists of: Tripod Wheels Tripod material would be selected depending on resulting total weight of product Wheels provide mobility AdvantagesDisadvantages  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

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

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

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

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

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

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

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

31 INASAD Fluorescent Light Changing System