1. Perform Assembly analysis using GE-Hitachi Analysis on the given switch design.
2. Suggest Improved designs and quick sketch.
3. Analyze improved designs using Hitachi and compare to original design.
4. Show changes in Assembly seconds (1 Tdown = 3 seconds) and in assembly efficiency.

HITACHI ASSEMBLY ANALYSIS SHEET
PRODUCT: LIGHT SWITCH
PART
LEVEL
1 2 3 4
PART NAME

OF

PART
S (n)
OPERATION
SYMBOLS

OF

OPER
ATIO
NS
(m)
Σe 100+
Σe
T=α●(
100+
Σe)
T●n
1 RIVETS 2
2 SWITCH BASE 1
3 RUBBER POSTS 2
4 SPRING 1
5.1 STATIONARY
BRIDGE 1
5.2 SCREW 1
6.1 MOBILE BRIDGE 1
6.2 SCREW 1
7
SWITCH
MECHANISM 1
8 SWITCH HOLDER 1
9 MOUNTING PLATE 1
10 MOUNTING
SCREWS 2
11 SCREW HOLDER 2
Assembly Efficiency Rating: N=Σn: Assembly Cost Ratio
(Redesign only):
Normalized
Assembly Time ΣT●n:
E=N(100)/AT: K=AT/AT0: AT=ΣT●n/100:
m 1 2 3 4 5 6 7 8 9 10 >10
α 1 1.15 1.30 1.45 1.50 1.75 1.90 2.05 2.20 2.35
0.85+
0.15●
m

Sample Solution