Final_Draft_Project_2.pdf - Goal Statement Design a coin-op...

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Goal StatementDesign a coin-op kiddie ride with a more interesting coupler motion path toenhance the experience for the child while maintaining safety.Task Specifications:The ride will have a weight limit of 200 lbs.Must be able to use indoors and outdoorsThe device must be safe and comfortable for the occupantMust be able to support a child up to 48’’ in heightThe ride must not exceed velocities and accelerations that could injure the occupantDevice must be a pin-jointed linkageCoupler motion must provide an interesting ride for the occupantSurface materials used must be wear-resistantMust be simple to operateMust cost less than one dollar per ride cycleMust use no more than 2 motors to operateMust be able to operate without repair for at least 1,000 operationsMust not repeat motion cycle more than 5 times during a single operationMust provide a smooth ride for occupantMust have constraints to keep child from falling out while in motionThe car must not exceed a +45 degree or -30 Degree angle during operation
Background ResearchTo perform this task asked upon us we focused on the design process whichsuggested that we performed much research to better understand our objective.Wewanted to create a “kid bouncer” similar to the ones that can be found outsidesupermarkets. We wanted to create a bouncer that could entertain children by usingunpredictable motion patterns while also remaining safe for the children and meeting allof our task specifications. To start we decided to look at related existing products on themarket focusing on how they operate and areas in which we could improve upon andchange to more fit the objective we were given.While doing this research we had to takemany aspects into account, including the size and safety of the potential user.In order to make this device attractive to our target market we have to understandthe potential users of these machines. This device is intended for children that weigh upto 200 lbs. but must also cater to small children as well. This limits us as far as the designof this product because we need to make sure that nothing can go wrong that wouldrequire only an older, larger user to withstand. The device must be large enough for thechild to fit comfortably in although must not allow too much room for the child topossibly get injured. As far as the motions of this device, it must not be too intense andthe motion of the device must not reach dangerous velocities or accelerations.To control these motions we looked at common linkages to give us ideas of whatwe are ultimately trying to accomplish. The first one that we came across was the Klannlinkage system (As seen in figure 1). The Klann linkage has a large coupler curveincluding a larger change in height than most linkages.This would appeal to children

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