1

Team INASAD

Members: Jose Medina Joseph

LeoneAndrew Merk Alex

SandersMichael Fox

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Past Events

Current Events Subsystem Conceptual

Designs Future Events

Agenda:

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Past EventsGroup 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 SubsystemPincher 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.

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.

Bulb Clamping SubsystemAlternative 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

Advantages Disadvantages

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

Advantages Disadvantages

Motor started/stopped by user commands.Robust.

Electronic controls required.Heavy.Complex.

Bulb Rotation SubsystemAlternative 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 SubsystemBulb 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 functionAllows a larger range of flexibility during initial positioning

Difficult to see the socketIf not aligned correctly could break the bulb

Bulb Alignment SubsystemPeriscope 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.

Bulb Alignment SubsystemAlternative 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 SubsystemCrescent 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.

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 removalFull bags could be removed and thrown away with the bulbs in them

Bulbs could break if multiple bulbs are placed in one bagMultiple bulbs would increase the weight of the product

Bulb Collecting/Safety SubsystemAlternative Options

Fine net to catch glass pieces Work like a strainer

Square Plexiglas box Adjustable length

Horizontal Telescoping SubsystemPush Pin Sliding System

Consists of: Bulb Collecting Safety

Subsystem Spring loaded pins Strategically drilled

holes

Manually adjustable

Advantages Disadvantages

No electricity neededHoles predrilled for the different standard bulb lengths

Could not be adjusted for odd length bulbsOver 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

Advantages Disadvantages

Does not need electricityAllows for minor adjustments for odd sized light bulbs.

Over time the gear threads could wearOver time the pinion could break off and separate from the rack

Horizontal Telescoping SubsystemAlternative 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 SubsystemPneumatic 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.

Vertical Motion SubsystemRack 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

Vertical Motion SubsystemAlternative 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

Advantages Disadvantages

Allows extra mobilityAllows the changing of bulbs which have non-movable objects under themReduces the overall size for storage

If changing multiple bulbs the operators arm, shoulders, or back could get tiredWould 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

Advantages Disadvantages

Allows for increased product weightAllows minimal to no physical effort when using the product

Could provide a problem when trying to change bulbs over non-movable objectsIf product is to heavy pushing it on the wheels could be difficult

Support SubsystemAlternative 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 ToolAdvantages

•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 ToolAdvantages•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 ToolAdvantages•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 ToolAdvantages•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 ToolAdvantages•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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FutureSelect subsystem

designs

Continue patent search

Begin discussing materials, sizes, etc. of product

31

INASADFluorescent Light Changing System