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THE PEDAL MECHANISM 1

V. Ryan 2009

 

This pedal mechanism is very simple and depends on a series of narrow pieces of steel, linked together to allow movement.

This type of mechanism is called a linkage. It includes pivots (fixed and moving) and levers.

As a foot is pressed on the pedal (A) linkage B moves downwards linkage C moves upwards. Linkage C is connected to moving pivot D on the lid. Pivot E is fixed and allows rotation of the lid.
 
 
A 3D version of the pedal bin is shown below. The ‘skin’ of the bin is shown as translucent so that the mechanism / linkages cab be seen.
 
 
 
 
POSSIBLE MECHANISM DESIGN - 1
 
A ‘robust’ design of a pedal mechanism is seen below. This is the type seen on expensive bins. It is unlikely to break as it is manufactured from quality mild steel. This would be relatively complex to manufacture requiring a semi skilled workforce and a range of tools/equipment and machinery.
 
 
MECHANISM 1

Estimated cost of manufacture:
This would be a relatively expensive mechanism to manufacture. This is due to the range fo equipment needed and the cost of employment of a semi-skilled workforce. Estimated price - 3.00.

Manufacturing skills required:
The workforce need to be able to operate machines such as vertical millers, centre lathes, drilling machines and a range of hand tools and equipment.

Tools/equipment and machinery requirements:
Vertical miller for cutting slots. Drilling machines for drilling all holes. Centre lathe for accurate turning of pivots. Hand tools such as files for finishing.

Labour force training requirements:
Training in the use of all equipment and machinery mentioned above and Health and Safety certification / training.

Time scale:
Estimated time - after setting up of production line - 30 minutes as the product progresses down the production line.

Materials required:
10mm square section mild steel bar, 6mm round section mild steel, sheet steel.
 
 
 
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