Staple gun

From DDL Wiki

(Difference between revisions)
Jump to: navigation, search
m
Line 57: Line 57:
==Other Stakeholders==
==Other Stakeholders==
Identify other stakeholders besides the end user, such as those who manufacture, distribute, sell, purchase, assist, install, maintain, repair and manage the product's end of life. Document attributes of the product that affect these stakeholders.
Identify other stakeholders besides the end user, such as those who manufacture, distribute, sell, purchase, assist, install, maintain, repair and manage the product's end of life. Document attributes of the product that affect these stakeholders.
 +
 +
==Parts List==
 +
 +
{| class="wikitable" border="1"
 +
|-
 +
! Part # !! Part name !! QTY !! Function !! Wt.(kg.) !! Material
 +
|-
 +
| 001 || Hexstar screw || 4 || Holds opposite sides of chassis together, unique design prevents it from being taken apart || <.001 || ? ||
 +
|-
 +
| 002 || Safety Storage Lock || 1 || Holds down trigger handle for smaller profile during storage || <.001 ||  aluminum ||
 +
|-
 +
| 003 || Chassis/top || 1 || Provides support and protection for components, screws enter from this side || .117 || aluminum ||
 +
|-
 +
| 004 || Inner Grip || 1 || Provides comfortable place to hold onto staple gun  || .016 || plastic/black
 +
|-
 +
| 005 || Reloader spring || 2 || Pushes on handle to return it to it's upright position ||  <.001|| ? ||
 +
|-
 +
| 006 || Spring Holder || 1 || Anchors the reloader springs || .002 || Plastic/Black ||
 +
|-
 +
| 007 || Loader || 1 || Greased plastic latch attached to halde which catches and pulls back the tensions bars until it reaches the release point where it's curved shape releases the bars suddenly|| 0.024 || plastic ||
 +
|-
 +
| 008 || Handle || 1 || A metal bar that connects to the loader and transfers the force input of the user by proxy of the loader to the tension bars ||  .071 || steel ||
 +
|-
 +
| 009 || Handle Grip || 1 || A plastic cover for the handle which allows the user a more comfortable hold when using the stapler || - || plastic/black ||
 +
|-
 +
| 010 || Handle grip screw || 4 ||  Phillips screw which attaches Handle Grip to Handle || # ||  ? ||
 +
|-
 +
| 011 || Pin (Large) || 1 || Acts as a pivot point for the handle, anchoring it to the chassis || 0.005 || steel ||
 +
|-
 +
| 012 || Pin (Small) || 3 || Act as either pivots for loader/handle or provides point loads which to tension bars which both hold them in place and provide a pretension condition || 0.003 || steel ||
 +
|-
 +
| 013 || Stapler Loader || 1 || (Assembly) Pushes the staples into place to be launched || 0.041 || (Assembly-plastic) ||
 +
|-
 +
| 014 || Staple Queue || 1 || Provides location for staple storage and holds them in place until they are to be launched || 0.027 || (Assembly - plastic) ||
 +
|-
 +
| 015 || Staple Piston || 1 || powered by the tension bars this piece of metal knocks the stapler out of the gun and into the material || 0.007 || steel ||
 +
|-
 +
| 016 || Staple Piston Guide || 1 || attaches to piston and provides support and railings to guide it along its path || 0.023 || steel ||
 +
|-
 +
| 017 || tension bar (lower) || 1 || Stores energy for driving staple piston using the spring properties of a beam || 0.050 || steel ||
 +
|-
 +
| 018 || tension bar (upper) || 1 || Stores energy for driving staple piston using the spring properties of a beam. Is shorter than lower bar || 0.048 || steel ||
 +
|-
 +
| 019 || power lever || 1 || Adjusts the level of pretension in the bar || 0.003 || plastic-black ||
 +
|-
 +
| 020 || Chassis (bottom) || 1 || Provides support and protection for components  || .134 || aluminum ||
 +
|-
 +
| 021 || Spacer || 1 || Acts as a stop to prevent the tension bar from going to far, absorbs impact from tension bar when staple gun is fired|| 0.005 || plastic-transparent ||
 +
|}

Revision as of 01:28, 29 January 2007

Contents

Product Dissection

The following notes were taken prior to and during product dissection.

Function/Purpose

The function of the product is to fasten materials together using staples.

  • Hanging items from walls/ceilings/etc
  • Attaching one item to another
  • Shooting staples at targets (uncommon use)

Inputs/Outputs

  • INPUTS: force of hand squeezing
  • INPUTS: staples
  • OUTPUTS: staple projectile
  • OUTPUTS: recoil from handle

Typical Use Scenario

1. Pick up the staple gun and placed hand on handle
2. Positioned material with empty hand against item to be fastened to
3. Positioned gun against the material
4. Squeezed handled to release staple
5. Removed gun and checked to see if the materials were fastened together
6. No staple is present so repeats steps 2-5
7. Locates reloading place for staples
8. Removes slider on bottom of gun to check for staples
9. When no staples are present, finds staples and attempts to insert them
10. Positions staples over extruded part of staple loader and tries to close gun
11. When the slider will not close, repositions staples inside gun and closes slider successfully
12. Repeats steps 2-5
13. Finds that staple has successfully attached the two materials


Note: May have to unlock staple gun or adjust staple power before use. Do not always have to insert new staples.

Intended Use/Limitations/Annoyances

Intended functions:

  • Fasten materials together by shooting a staple through them
  • Ability to "lock" handle for more compact storage and/or safety reasons
  • Adjustable power so that the user may shoot staples at higher or lower speeds
  • Staples may be loaded by sliding the bottom of the stapler out, inserting the staples into the open compartment, then sliding and locking the bottom of the stapler back in place

Limitations/Annoyances:

  • A great amount of force is required to squeeze the handle for shooting staples
  • Difficult to adjust power
  • No safety lock (lock that is already on the stapler is intended for storage purposes)
  • Can't reach small/tight places
  • Size is awkward (ie for carrying or storing)

Advantages:

  • Sturdiness and solid weight
  • Easy to load once the process is known
  • Comfortable grip
  • Power adjustment option makes product seem higher quality/more advanced

Different Users / Use Scenarios

  • Force to dispense staples is high – people with small or weak hands may have difficulty using
  • People with large hands may not be able to fit their hands in the handle.
  • People may want to use it improperly – shooting staples at one another
  • People who need to fit staples in small, tight places may not be able to get the gun into those places

Other Stakeholders

Identify other stakeholders besides the end user, such as those who manufacture, distribute, sell, purchase, assist, install, maintain, repair and manage the product's end of life. Document attributes of the product that affect these stakeholders.

Parts List

Part # Part name QTY Function Wt.(kg.) Material
001 Hexstar screw 4 Holds opposite sides of chassis together, unique design prevents it from being taken apart <.001  ?
002 Safety Storage Lock 1 Holds down trigger handle for smaller profile during storage <.001 aluminum
003 Chassis/top 1 Provides support and protection for components, screws enter from this side .117 aluminum
004 Inner Grip 1 Provides comfortable place to hold onto staple gun .016 plastic/black
005 Reloader spring 2 Pushes on handle to return it to it's upright position <.001 ?
006 Spring Holder 1 Anchors the reloader springs .002 Plastic/Black
007 Loader 1 Greased plastic latch attached to halde which catches and pulls back the tensions bars until it reaches the release point where it's curved shape releases the bars suddenly 0.024 plastic
008 Handle 1 A metal bar that connects to the loader and transfers the force input of the user by proxy of the loader to the tension bars .071 steel
009 Handle Grip 1 A plastic cover for the handle which allows the user a more comfortable hold when using the stapler - plastic/black
010 Handle grip screw 4 Phillips screw which attaches Handle Grip to Handle #  ?
011 Pin (Large) 1 Acts as a pivot point for the handle, anchoring it to the chassis 0.005 steel
012 Pin (Small) 3 Act as either pivots for loader/handle or provides point loads which to tension bars which both hold them in place and provide a pretension condition 0.003 steel
013 Stapler Loader 1 (Assembly) Pushes the staples into place to be launched 0.041 (Assembly-plastic)
014 Staple Queue 1 Provides location for staple storage and holds them in place until they are to be launched 0.027 (Assembly - plastic)
015 Staple Piston 1 powered by the tension bars this piece of metal knocks the stapler out of the gun and into the material 0.007 steel
016 Staple Piston Guide 1 attaches to piston and provides support and railings to guide it along its path 0.023 steel
017 tension bar (lower) 1 Stores energy for driving staple piston using the spring properties of a beam 0.050 steel
018 tension bar (upper) 1 Stores energy for driving staple piston using the spring properties of a beam. Is shorter than lower bar 0.048 steel
019 power lever 1 Adjusts the level of pretension in the bar 0.003 plastic-black
020 Chassis (bottom) 1 Provides support and protection for components .134 aluminum
021 Spacer 1 Acts as a stop to prevent the tension bar from going to far, absorbs impact from tension bar when staple gun is fired 0.005 plastic-transparent
Retrieved from "http://wiki.ece.cmu.edu/ddl/index.php/Staple_gun"
Personal tools