Group 19 - Eureka EasyClean Hand-Held Vacuum 71B

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Contents

Gate 1- Project Planning

Introduction

Project Management: Request for Proposal

Work Proposal

Dis-assembly/Assembly

The Eureka Easy Clean Hand Held Vacuum that we will be dissecting is not an overly complex piece of machinery. As such the process involved with its dis-assembly is very similar in nature to that of its reassembly, simply in the reverse order. The vacuum can and should be taken apart without causing any damage to the actual item. If properly done, the di-sassembly should take approximately 1 hour to complete and the reassembly should take no more than 1.5 hours.

Necessary Tools

-Philips Head Screw Drivers (assorted size)

-Flat Head Screw Drivers (assorted sizes)

-Long Nose Pliers

-Hex Keys


Process Involved

In order to take apart the vacuum the first step is to take off all of the appliances that can be readily detached without the use of any of the above tools. The first of which is the crevice tool that can be used to extend the reach of the suction hose. This item can be simply pulled out from its storage place in the base of the vacuum. The others are the dust cup and filter. These are removed by moving the power switch to the “open cup” position and lifting the dust cup containing the filter away from the vacuum. Next we must use the different screw drivers and hex keys to take apart the outer shell of the eureka vacuum and expose its interworking’s. Without an exploded image of the vacuum and due to the lack of an extensive user guide this is as far as we can specifically get given our current knowledge of the vacuum. It will obviously require further dissection but we must open up the outer shell before we discuss the process after that point. If any of the parts are particularly difficult to remove the long nose pliers can aid in the removal. When the vacuum must later be reassembled it can be done by reversing the above process.

Perceived Challenges

The main challenge involved with the eureka vacuum’s dissection is that it is a fairly small mechanical object. This means that disassembling its various parts will require some precision as the screws, springs, and parts contained in vacuum will be small and require the technician involved in its dis-assembly to be very meticulous.

Team Strengths

Thus far our team seems to have the crucial keys to succeed for this project. We are all willing to work hard and put in the time to achieve each Gate. We also have a fairly good knowledge of the fundamental underlying principles that go into mechanical devices i.e. Physics, Electricity, Thermodynamics, etc. As we do not have much prior knowledge to the specific interworking’s of a vacuum this basic knowledge should prove beneficial. Lastly we all seem to have the patience that is needed when trying to disassemble such a small object that may require a lot of precision.

Team Weaknesses

Our team presents the unique case in which our members are from different countries of the world. Although this mostly creates a positive situation it does create somewhat of a culture/language barrier between our group members. This can prove to be problematic during group meetings if our members have difficulty communicating amongst each other. In order to solve this issue the best course of action is to spend increased amounts of time together, which will allow us to grow accustomed to different accents and more comfortable in our communication together. We can also work to do a large portion of our work on the computer, that way no words are lost in the translation. The other main weakness our team presents is a heavy work schedule by all of our group members. This is fitting since we all have the same major and thus must take very similar workloads. The solution to this is time management and proper allotment of tasks.

Management Proposal

Timeline

Timeline Group 19.jpg

Figure 1: Timeline of Group Due Dates

The Product Proposal and Gate 1 was not included in this timeline become it either is past the due date or is due now. There are about two and a half weeks between each gate and ten days for the final delivery. Since the time given to do the final delivery is less than the gates, there will be less meetings. Each member will be assign their work at least two weeks prior to the due date, an exception being the final delivery. The members are expected to have their work done two to three days before the due date in order for the Project Manager to review their work.

Meeting Time

Our group will meet whenever it is necessary to finish our work. If we do not finish it time on one day, we will continue to meet another day until our work is complete. We can meet up on all weekdays from 5:00 PM until about 8:00 PM. However, one member (Tina Zhang) will be unable to be there the whole time on Tuesdays and Thursdays due to class. If we need more time or are unable to meet up during those times, we will meet up early on the weekdays or even on the weekends if needed. Our usual meeting place is at the bottom floor of Capen Library and if there are no seats available, we can relocate to Lockwood Library. If there were to be a group conflict, the members would both explain their sides of the conversation and there will be a majority rule. Since there are five members in the group, the side in which three or more members agree on wins. Each person is expected to do his/her own part. In the situation if a member was not pulling his/her own weight, the other members will go to an instructor's office and hold a conference on what to do there. If there is a need to get in contact with our group, you can email the Project Manager, Tina Zhang, at tinazhan@buffalo.edu.

Group Roles

Group 19 Roles.jpg

Figure 2: Table of Group Roles and Responsibilities

Product Archaeology: Preparation and Initial Assessment

Section Intro

In order to successfully complete the product dissection later during Gate 2, we have read the manual and done some research on the Eureka Easy Clean Handheld Vacuum. The following initial assessment would be vital in the later process of dissecting the product successfully.

Development Profile

Based on the research we have done, the product was approximately developed and released for sales during December 2008 and is lasting till today with good sales. This product was first assembled in China due to its cheaper production cost. At that period, it was the global recession and probably that is the reason the production was delayed to the later months of the year (when the economy slowly started picking up).

The product was intended to be sold in all regions and countries considering its functions being universally needed. The main intended impact on the users were to ease the work of cleaning as it is equipped with many functions that would make it much easier to use than a regular vacuum.

Usage Profile

Intended Use of Product
  • Hand-held, powerful product to ease the process of cleaning car upholstery, sofas, and carpeted stairs.
Field of Product Usage
  • Primarily intended for home usage, rarely focusing on professional usage.
  • Product that would be comfortable for elderly, safe for children and pets.
Jobs Product can Perform
  • Cleans stairs and auto upholstery.
  • Equipped with features to get into tight spaces.
  • Light to carry and clean car upholstery, sofas, and carpeted stairs.
Tasks Required to Achieve Different Objective
  • Switch to turn on/off the brushroll to clean bare floors.
  • Pull back on the power switch to the ‘’open cup’’ position and lift dust cup to empty.
  • Attach crevice tool to clean smaller spaces.
  • Wrap cords at the given section to ease storing.

Energy Profile

This product works like any other normal vacuum does and hence use the following energies:

  • Electrical energy
  • Mechanical energy
  • Kinetic energy
  • Energy due to pressure change

Electrical energy flows from the plug through the cord to the motor. The motor then uses this energy to produce mechanical energy as we all know. The mechanical energy works on the turbine and its belt uses kinetic energy to spin around. This produces some sort of “vacuum” due to the low pressure and the pressure difference between the atmosphere and the vacuum (atmospheric pressure is higher than in the vacuum) causes the dirt to be sucked into the vacuum.

Complexity Profile

Based on resources found, there were 9 components which had been identified. These components are listed as follows:

  • Brushroll
  • On/Off Brushroll switch
  • 20 foot long cord
  • 3 foot hose
  • Filter
  • Motor
  • Bagless Dust Canister
  • Crevice Tool



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Complexity Chart

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All the components used are designed to be simple. When all these materials are fixed together, the motor powers them up by using electricity. This vacuum comes with a crevice tool which makes it easier to use the vacuum.

Material Profie

  • The main material used in this product is durable plastic. The outer layer is made entirely of plastic, except for the 20 foot long cord, which is made of copper wire insulated with rubber exterior.
  • The interior of the vacuum consists of the brushroll, the filter ,and the motor. The brushroll is made of fibers which is used in the form of bristles to allow effectiveness of the vacuum to collect debris. On the other hand, the filter is made up of clothe for easy cleaning.
  • The vacuum also consists of other materials which cannot be seen. These materials are vacuum greases and belts connected to the motor for the vacuum to function.

User Interface Profile

Alternative Products

Name Black & Decker CHV1510 Dustbuster 15.6-Volt Cordless Cyclonic Hand Vacuum
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Eureka RapidClean Pet Cordless Handheld Vacuum, 80A
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BISSELL Cleanview Deluxe Corded Handheld Vacuum, 47R51
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Hoover Platinum LINX Pet Cordless Hand Vacuum, BH50030
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Cost $45-$90 $40-$60 $30-$50 $100-$170
Advantage Lightweight easy to handle , powerful suction, cordless Light 3.8lbs , cordless , came with crevice tool, dusting brush, charging stand, powered pet brush Powerful suction, Rubberized tips, Ergonomic and lightweight Lithium-ion battery ( runs at full power until is dead), has LED gauge for battery life, less noise , cordless
Disadvantage Short extension wand, narrow suction path, small dust bin Small cleaning path, weak battery, lose power(suction) rapidly Exhaust blows forwards from both sides, kicking up dust a bit, Get heated easily, a lot of attachment not easy to store Pricy , have to remove battery in order to charge it
Special Uses It is great to use it while traveling, large nozzle able to take in larger object Features tools specially made to remove pet hair Rubberized tips can efficiently clean cloth and soft object Ability to clean delicate surface with its brush, powerful suction throughout the cleaning process.