Snowboard
From DDL Wiki
Contents |
Executive Summary
Stakeholders
Consumer
Retailer
Manufacturer
Shipping
Use Study
Mechanical Function
Product Parts
Exploded Assembly
Bill of Materials
Table: Components of Snowboard
| Part # | Part Name | Quantity | Material | Function | Manufacturing process | Weight [g] | Image |
|---|---|---|---|---|---|---|---|
| 1 | Screw (1) | 8 | Steel | Fixes bindings to board | 5 | 
| |
| 2 | Washer (1) | 4 | Steel | Protects piece from screw | 0.75 | 
| |
| 3 | Nuts (1) | 4 | Steel | Attach strap to binding | 8 | 
| |
| 5 | Buckle Screw | 1 | Steel | Attaches buckle to strap | <1 | 
| |
| 6 | Strap (1) | 1 | Plastic | Fixes upper part of boot to binding | Injection | 16 | 
|
| 7 | Plastic Piece (1) | 1 | Plastic | <1 | 
| ||
| 8 | Screw (2) | 1 | Steel | 9 | 
| ||
| 9 | Screw (3) | 1 | Steel | 4 | 
| ||
| 11 | Metal Ring | 4 | Steel | Protect plate (n°18) from screws | 1.5 | 
| |
| 12 | Screw (4) | 1 | Steel | <1 | 
| ||
| 13 | Large Anchor Nut | 1 | Steel | Attaches foam pad (n°46) to straps (n°-) | <1 | 
| |
| 14 | Small Anchor Nut | 1 | Steel | Fixes strap (n°22) | <1 | 
| |
| 15 | Angle Limiter | 1 | Plastic | Limits angle of pad (n°24) | Injection | 10 | 
|
| 16 | Plastic Square | 1 | Plastic | Attaches angle limiter (n°15) to pad (n°24) | Injection | 9 | 
|
| 17 | Strap (2) | 1 | Plastic | Fixes lower part of boot to binding | Injection | 9 | 
|
| 18 | Circular Plate | 1 | Plastic | Allows different angles between board and binding | Injection | 68 | 
|
| 19 | Pad (1) | 1 | Foam | Softens connection between leg and binding | 6 | 
| |
| 20 | Washer (2) | 1 | Steel | <1 | 
| ||
| 21 | Strap (3) | 1 | Plastic | Attaches buckle and fixes lower part of boot | Injection | 10 | 
|
| 22 | Strap (4) | 1 | Leather | Fixes lower part of boot | 33 | 
| |
| 23 | Nut (2) | 1 | Steel | <1 | 
| ||
| 24 | Pad (2) | 1 | Plastic | Holds rear of boot | Injection | 133 | 
|
| 25 | Base | 1 | Plastic | Frame of binding | Injection | 276 | 
|
| 26 | Damper | 1 | Rubber | Dampers vibrations and shocks from board to binding | 79 | 
| |
| 27 | Metal Fixation (1) | 1 | Steel | Frame of buckle | 12 | 
| |
| 28 | Lever (1) | 1 | Plastic | Opens or closes buckle | 5 | 
| |
| 29 | Metal Fixation (2) | 1 | Steel | Frame of buckle | 12 | 
| |
| 30 | Rivet (1) | 1 | Steel | Connects angle limiter (n°15) pieces | <1 | 
| |
| 31 | Rivet (2) | 6 | Steel | Connects buckle pieces | 1 | 
| |
| 32 | Washer (3) | 1 | Steel | <1 | 
| ||
| 33 | Metal Fixation (3) | 1 | Steel | Frame of buckle | 26 | 
| |
| 34 | Lever (2) | 1 | Aluminium | Opens or closes buckle | 19 | 
| |
| 35 | Plastic Piece (2) | 1 | Plastic | Holds buckle pieces in place | Injection | 4 | 
|
| 36 | Spring (1) | 1 | Steel | Returns lever to original position | <1 | 
| |
| 37 | Rivet (3) | 1 | Steel | Connects buckle pieces | <1 | 
| |
| 38 | Rivet (4) | 1 | Steel | Connects buckle pieces | <1 | 
| |
| 39 | Plastic Piece (3) | 1 | Plastic | Holds buckle pieces in place | Injection | 5 | 
|
| 40 | Metal Fixation (4) | 1 | Steel | Frame of buckle | 22 | 
| |
| 41 | Lever (3) | 1 | Plastic | Opens or closes buckle | Injection | 4 | 
|
| 42 | Plastic Piece (4) | 1 | Plastic | Holds buckle pieces in place | Injection | <1 | 
|
| 43 | Spring (2) | 1 | Steel | Returns lever to original position | <1 | 
| |
| 45 | Board | 1 | Steel, Resin, Plastic | Glides on snow and cuts ice with its edges, frame of bindings | 3518 | 
| |
| 46 | Foam Pad | 1 | Foam | Softens connection between foot and strap | 49 | 
| |
| 47 | Plastic Retainer | 1 | Plastic | Fixes upper part of boot | Injection | 65 | 
|
| 48 | Bolt | 1 | Steel | Connects foam pad (n°46) to retainer (n°47) | <1 | 
|
Design for Manufacture and Assembly
Failure Modes and Effects Analysis
Design for Environment
A snowboard has very low greenhouse gas emissions in use. The only emissions associated with use are the additional emissions from transport, which we consider negligable if transported inside a vehicle, but could be significant if transported externally as for example on the roof of a car which would add drag.
The emissions caused by the added drag can be estimated by considering a increase in fuel consumption of 5% when using a ski rack [X]. When estimating an average driving distance to snowboard as 200 miles, a car with 20 miles/gallon, 5 trips/year, a 10 year life span and an average of 3 snowboards in the rack, the amount of gas needed to compensate for the ski rack can be estimated to 8.3 gallons. Considering 8.9 kg CO2 per gallon of gas [Y], the total CO2 emissions from the use of a snowboard is approximately 75 kg. Being such a rough estimate it seems natural to round it to the order of magnitude of 0.1 t CO2.
We assume that the main emmisions of greenhouse gas will be caused by the manufacture of the snowboard. To estimate the amount of this we used the EIO-LCA method. This gave a total of manufacturing emissions as 0.25t CO2 considering an average price of 400 dollars for a board.
However the method is very unprecise in our case as snowboards only represents a fraction of the sporting and athletic goods manufacturing sector, so it represents the average emmisions of all sports equipment which could vary enormously from one product to another.
