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Friday, October 29, 2010

Weaving between the frame


The weaving is simple. The cricket ball offcuts will be woven in long chains and linked around the outer and inner circular frames. It will simply be tied at each end and tightened so there is no sag around the sides. The seat will be a separate woven piece and to create sag fro the seat, it will be woven into a net. This method is the easiest, and requires no threads, screws or adheasives.

Saturday, October 23, 2010

Anthropemetric Considerations

The average human height is 168cm.

 
Anthropometric estimates for British adults
aged 19-65 years (in mm, from Pheasant)
Dimension 5th %ile 50th %ile 95th %ile
A Sitting height 850 910 965
795 850 910
B Sitting shoulder height 540 595 645
505 555 610
C Shoulder breadth 420 465 510
355 385 435
D Hip breadth 310 360 405
310 370 435
E Buttock-popliteal length 440 495 550
435 480 530
F Popliteal height 395 440 490
355 400 445

 
MALE FEMALE




GUIDELINES FOR DESIGN

MULTI-PURPOSE SEATS
Multi-purpose seats are intended for a variety of uses: in dining rooms, bedrooms, work areas, and as spare chairs. They are also used in public spaces such as waiting rooms, conference centres and libraries, where they often have to be stacked for storage. General requirements for seats can be applied to multipurpose chairs. However, such chairs will not usually be maximally comfortable in all situations and compromises will often have to be made. It is difficult to design a seat that is comfortable both for a forward-inclined posture (a dining table) and a backward leaning posture (listening to a talk). Taller and shorter users may be particularly uncomfortable with certain chairs.
Recommendations:
  • The seat and backrest should be upholstered with a gently-rounded lumbar support.
  • The seat surface should be gently moulded with slight concavity under the buttocks.
  • The depth of the seat should not exceed 430mm in order that the backrest is effective for smaller users.
  • The height of a flat seat surface should be 400–460mm.
  • The material for the seat cover should allow for air circulation and not be slippery.