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**ERGONOMIC FOR PRODUCT DESIGN (GARDEN HAND TOOL) (Anthopometry…
**ERGONOMIC FOR PRODUCT DESIGN (GARDEN HAND TOOL)
Anthopometry
Traditional product
Hand fork
Trowel
Asian anthropometry data (Japan)
Existing product trowel and hand fork blade are not made from stainless steel
There is no finger form shape at the existing product handle
The width of the existing product did not match the user hand measurement
Smallest user 5th percentile and largest user with 95 percentile
Biomechanical (Force)
Class system data
Natural-0 Green-1 yellow-2 Red-3 this product use yellow class system data which include the movement of the hand that is forward and backward. also the rotational movement at the hand wrist. and the grip force to the handle.
Handle grip with finger for shape foe easy grip
The force used for using this product include digging and trowing into the soil repeatedly according to the user needed.
Psychology (Movement, Digestion, Mental, Recovery)
Repetition and vibration=movement
with the hand movement and wrist rotation it includes repetition and vibration to the hand muscle and this affect the user psychology of the user
How importance the product to the user=digestion
the combination of these two product is important between trowel and hand fork so the user can minimize the time to change tools and decrease the potential to get multiple wrist syndrome
How the size and the shape of the product appeal to the user=mental
the size of the existing product use be between the 5 and 95 percentile. to enabel a wide range of user van use the product easily.
Efficiency of the product, product expired time and the enhancement element in the product=recovery
a hand tool efficiency might decrease by years but it still can be so useful to the user as it is not easy to dispose. it is reusable and long lasting
Physiology
Shorten injury time
Reduce number of mistake-decreasing the potential injury to the user hand
Reduce learning time-user need no more time to understand to use the product.
combination of these two product lessen and improve the gardening acvtivity
With easy to use product function this new redesign product will Improve people satisfaction in term of user mind set.
