Group 24 - Swingline Electric Stapler - Revision history

MAE277G24 at 15:25, 10 December 2007

2007-12-10T15:25:01Z

MAE277G24: /* Energy Transfer */

2007-12-10T15:22:37Z

Energy Transfer

MAE277G24: /* Part Table */

2007-12-10T13:41:05Z

Part Table

MAE277G24 at 13:39, 10 December 2007

2007-12-10T13:39:31Z

MAE277G24: /* Part Table */

2007-12-10T13:18:27Z

Part Table

MAE277G24: /* Part Table */

2007-12-10T13:11:09Z

Part Table

MAE277G24: /* Part Table */

2007-12-10T12:52:00Z

Part Table

MAE277G24: /* Part Table */

2007-12-10T11:46:51Z

Part Table

MAE277G24: /* Part Table */

2007-12-10T11:33:34Z

Part Table

MAE277G24: /* Part Table */

2007-12-10T11:18:36Z

Part Table

@@ Line 28: / Line 28: @@
 ==Before Disassembly==
-Our knowledge was limited in how the stapler works, what components it may entail, and what different materials are used.  We know that it uses electrical components such as wires and a switch board because it needs the electrical energy to transfer it into mechanical energy.  This mechanical energy is the part that actually does the stapling.  In order to accomplish this, it must have some mechanism to drive the staple into the paper.  We also know that a small motor is used to power this mechanism and the motor is powered by our electrical energy.  We can predict that the system may use gears to transfer motion, but we are not sure of the orientation or how many.  The materials used in the production of the stapler are hard to predict because many materials would be feasible solutions.  We do in fact know that plastic is used for the protective casing.  The other materials that we assume are used in some components would be steel and magnets for the motor and other types of metal for smaller components that need to be strong such as screws.
+*The product that our group was assigned was an electric stapler made by Swingline.  Before disassembling the product, our knowledge was very limited in how it works or the components inside.  However, we can make several obvious assumptions from current knowledge of staplers.  The purpose of an electric stapler is to staple pages together or to bind two pages or more pages together.  This is useful because in a report several pages long, they can be kept organized chronologically and won’t be separated from each other.  An electric stapler is more advanced than your regular stapler because instead of using your hand to push the staple in the page, it is automatically done for you.  You slide your pages under the designated area, the stapler triggers, and activates a staple binding your pages.
 When we received the product we tested it out and it did work.  We plugged it into the wall using the electricity from the outlet and put batteries in the bottom of it.  Both methods worked and let the stapler run flawlessly.  It did emit a sound from all the movement that was going on underneath the protective casing.  The sound was not like a normal stapler but more forceful and fast paced.  You could hear some components moving around and then the louder sound of something drive the staple down.
 ==Energy Transfer==
 The picture on the right side below this paragraph is a 3D CAD Drawing of the main components of our stapler.  The motor, powered by electricity from an electrical outlet, spins at a high rate of speed and through gear reduction it spins the large gear (2) causing the swing arm to pivot, therefore forcing the piece of metal down that pushes the staple into the paper (this being the rotational to linear energy transfer).  There is a video to the left which will clarify my explanation.
@@ Line 41: / Line 45: @@
 <embed src="http://www.youtube.com/v/pmcud7JTBKI&rel=1" type="application/x-shockwave-flash" wmode="transparent" width="425" height="355"></embed>
 ==Disassembly Process Table==

@@ Line 36: / Line 36: @@
 ==Energy Transfer==
-The motor spins at a high rate of speed and through gear reduction it spins the large gear (2) causing the swing arm to pivot, therefore forcing the piece of metal down that pushes the staple into the paper.  The video below will help.
+The picture on the right side below this paragraph is a 3D CAD Drawing of the main components of our stapler.  The motor, powered by electricity from an electrical outlet, spins at a high rate of speed and through gear reduction it spins the large gear (2) causing the swing arm to pivot, therefore forcing the piece of metal down that pushes the staple into the paper (this being the rotational to linear energy transfer).  There is a video to the left which will clarify my explanation.
 [[Image:Cad25.JPG|right]]
 <embed src="http://www.youtube.com/v/pmcud7JTBKI&rel=1" type="application/x-shockwave-flash" wmode="transparent" width="425" height="355"></embed>
 ==Disassembly Process Table==

@@ Line 307: / Line 307: @@
 | align="center" | ABS plastic (cheap. no need for strong support)
 | align="center" | The unusual shape of the tray release switch is used so that when it is pressed, it can in turn press both the small spring mounting pin, and the cut off button on the circuit board at the same time.
-| align="center" |
+| align="center" | Injection Molding
 |-
 | align="center" | 18

@@ Line 410: / Line 410: @@
 | align="center" | Circuit Board & Components (acts as the brain of the stapler)
 | align="center" | 1
-| align="center" |
+| align="center" | fiberglass board with copper paths
 | align="center" | The bottom of the circuit board his a space cut out so it doesn't get in the way of the staple tray. The sides of the circuit board fit into slots on in the shell bottom.
-| align="center" |
+| align="center" | Etching
 |-
 | align="center" | 34

@@ Line 450: / Line 450: @@
 |-
 | align="center" | 39
-| align="center" |
+| align="center" | Large Screw (fastens shell bottom to shell top)
-| align="center" |
+| align="center" | 2
 | align="center" | 1020-1040 Steel (it provides adequate strength while maintaining low cost)
-| align="center" |
+| align="center" | A large screw head makes it easy to access in a tight space
 | align="center" | Extrusion and Cold Forging
 |-
 | align="center" | 40
-| align="center" |
+| align="center" | Small Screw (fastens base plate to shell Bottom)
-| align="center" |
+| align="center" | 4
 | align="center" | 1020-1040 Steel (it provides adequate strength while maintaining low cost)
-| align="center" |
+| align="center" | A large screw head makes it easy to access in a tight space
 | align="center" | Extrusion and Cold Forging
 |-

@@ Line 419: / Line 419: @@
 | align="center" | Steel(lever), ABS plastic (housing)
 | align="center" | The long lever allows for a sensitive, more reliable sensor
-| align="center" | Sheet Metal Forming (lever) Injection Molded (housing)
+| align="center" | Sheet Metal Forming (lever) Injection Molding (housing)
 |-
 | align="center" | 35
-| align="center" |
+| align="center" | Power Input Jack (source of energy)
-| align="center" |
+| align="center" | 1
-| align="center" |
+| align="center" | ABS plastic (housing)
-| align="center" |
+| align="center" | the lack of cord directly attached to the stapler makes it easy to move around a desk
-| align="center" |
+| align="center" | Injection Molding (housing)
 |-
 | align="center" | 36
-| align="center" |
+| align="center" | LED (shows that the stapler is ready to accept paper)
-| align="center" |
+| align="center" | 1
-| align="center" |
+| align="center" | Clear ABS plastic
-| align="center" |
+| align="center" | Clear cover allows light so show through
-| align="center" |
+| align="center" | Injection Molding
 |-
 | align="center" | 37