Pump Tyre

Hirmanto Bin Suib B050710254

Faiz Bin Razali B050710234

Mohd Norazali Bin Zainal Abidin B050810145

PP23

PP10

PP16PP09

PP22

PP21PP18

PP17

PP15 X 2PCSPP11

PP14PP13

PP12

PP20PP03PP02PP01

PP19

PP08PP06

PP05PP04

PP07

Product Tree Structure

FINAL PRODUCT

FINAL PRODUCT

SUB ASSEMBLY 1 SUB ASSEMBLY 1 SUB ASSEMBLY 2SUB ASSEMBLY 2 SUB ASSEMBLY 3SUB ASSEMBLY 3 SUB ASSEMBLY 4SUB ASSEMBLY 4

SUB-SUB ASSEMBLY 1

SUB-SUB ASSEMBLY 1

SUB-SUB ASSEMBLY 2

SUB-SUB ASSEMBLY 2

Assembly Drawing (Current Design)

Assembly Worksheet Analysis (Current Design)

Part Number

No. of Operation

Manual Handling Code

Manual Handling Time (s)

Insertion Code

Insertion Time (s)

Total Operation Time (s)

Theoretical Minimum No. of Parts

Part Name

PP01 1 20 1.80 03 3.50 5.30 1 Outer Cap

PP02 1 03 1.69 01 2.50 4.19 1 Inner Cap

PP03 1 12 2.25 03 3.50 5.75 1 Notch

PP04 1 37 3.55  51 9.00 12.55 1 Nozzle

PP05 1 03 1.69 06 5.50 7.19 1 Collar

PP06 1 04 2.18 38 6.00 8.18 1 Flexible Washer

PP07 1 32 2.70  51 9.00 11.70 1 Lever

PP08 1 22 2.55 00 1.50 4.05 1 Clevis Pin

PP09 1 20 1.80 01 2.50 4.30 1 Knob

PP10 1 03 1.69 00 1.50 3.19 1 Cylinder

PP11 1 01 1.43 00 1.50 2.93 1 Release Valve

PP12 1 22 2.55 00 1.50 4.05 1 Receptacles

PP13 1 22 2.55 01 2.50 5.05 1 Pivotal Pin

PP14 1 04 2.18 00 1.50 3.68 1 Flexible Washer3

PP15 2 04 2.18 00 1.50 7.36 1 O' Ring

PP16 1 03 1.69 00 1.50 3.19 0 Gas Inlet

PP17 1 03 1.69 00 1.50 3.19 1 Piston Rod

PP18 1 30 1.95 01 2.50 4.45 1 Connector

PP19 1 30 1.95 00 1.50 3.45 1 Flexible Hose

PP20 1 04 2.18 00 1.50 3.68 1 Flexible Washer2

PP21 1 32 2.70 00 1.50 4.20 0 Foot Stand

PP22 1 09 2.98 38 6.00 8.98 0 Connector Pin

PP23 1 27 3.38 08 6.50 9.88 0 Head Tap Screw M3

Total 130.49 19

Total number of parts is 24The manual design efficiency is given by EM = 3 x (19/130.49)=41.38%

• The as inlet (PP16) could be attached by snap fits to the cylinder (PP10) so the head tap screw (PP23) can be eliminated.

• The foot stand (PP21) could be combined as one with connector (PP18).

• Providing plastic connector pin (PP22) can be eliminated by combining it with connector (PP18).

Discussion

Assembly Drawing (New Design)

Assembly Worksheet Analysis (New Design)

Part Number

No. of Operation

Manual Handling Code

Manual Handling Time (s)

Insertion Code

Insertion Time (s)

Total Operation Time (s)

Theoretical Minimum No. of Parts

Part Name

PP01 1 20 1.80 03 3.50 5.30 1 Outer Cap

PP02 1 03 1.69 01 2.50 4.19 1 Inner Cap

PP03 1 12 2.25 03 3.50 5.75 1 Notch

PP04 1 37 3.55  51 9.00 12.55 1 Nozzle

PP05 1 03 1.69 06 5.50 7.19 1 Collar

PP06 1 04 2.18 38 6.00 8.18 1 Flexible Washer

PP07 1 32 2.70  51 9.00 11.70 1 Lever

PP08 1 22 2.55 00 1.50 4.05 1 Clevis Pin

PP09 1 20 1.80 01 2.50 4.30 1 Knob

PP10 1 03 1.69 00 1.50 3.19 1 Cylinder

PP11 1 01 1.43 00 1.50 2.93 1 Release Valve

PP12 1 22 2.55 00 1.50 4.05 1 Receptacles

PP13 1 22 2.55 01 2.50 5.05 1 Pivotal Pin

PP14 1 04 2.18 00 1.50 3.68 1 Flexible Washer3

PP15 2 04 2.18 00 1.50 7.36 1 O' Ring

PP17 1 03 1.69 00 1.50 3.19 1 Piston Rod

PP18 1 30 1.95 01 2.50 4.45 1 Connector

PP19 1 30 1.95 00 1.50 3.45 1 Flexible Hose

PP20 1 04 2.18 00 1.50 3.68 1 Flexible Washer2

Total 104.24 19

Total number of parts is 19The manual design efficiency is given by EM = 3 x (19/104.24)= 54.68%