zWork Study for Apparel Manufacturing

Deepali Pandit | BFT 5

WORK STUDY OF AN

OPERATION TOP STITCHING THE FRENCH SEAM OF

BACK POCKET BAG

WORK PLACE LAYOUT

Input i.e. Trouser Back Panel are placed on the lap of Operator.

Measurements:

Machine bed – 47 X 21” Machine head – 18 X 7” Thread Cutter – 5 X 2’

Height of Stool is adjustable, Width – 12”

Height of stool to keep finished panel – 18

Layout is ergonomically sound.

Machine bed

Machine Head

Thread Cutter

Operator

Stool to Store Output

TWO HANDED PROCESS CHART

LH Description

Therbligs

SYMBOLS SYMBOLS Therbligs

RH Description

Reach to the Trouser Panel

Transport Empty

Rest Idle

Grasp the Panel

Grasp Rest Idle

Bring Panel Trans

port loaded

Rest Idle

Hold the panel

Hold Grasp Grasp the panel

Fold Use Use Fold

ORIGINAL METHOD:

Layout has been already made on the

previous sheet.

DRAWING AND PART: Pocket Bag (Rectangular)

14 X 7”

CHART NO. 1 SHEET NO. 1 OF Topstitching French seam WORKPLACE LAYOUT

OPERATION: Topstitching at the French seam of back

Pocket bag.

LOCATION: Sewing Department

OPERATIVES: XYZ

CHARTED BY: Deepali Pandit

APPROVED BY: Mr. Umar

LH Description

Therbligs

SYMBOLS SYMBOLS Therbligs

RH Description

Place on the machine bed

P P Place on the machine bed

Align the Pocket bag

PP PP Align the pocket bag

Place the panel under Presser Foot

P P Place the panel under Presser Foot

Sew to Hold Use Use Sew to hold

Align PP PP Align

Sew with m/c Use Use Sew with m/c

Turn at 900 P P Turn at 900

Align PP PP Align

Sew with m/c Use Use Sew with m/c

Turn at 900 P P Turn at 900

Align PP PP Align

Sew with m/c Use Use Sew with m/c

Get Panel out of Presser foot

Use Rest Idle

LH Description

Therbligs

SYMBOLS

SYMBOLS Therbligs

RH Description

Hold the Panel

Hold Transport empty

Reach to the panel

Idle Rest Grasp Grasp Panel

Idle Rest Transp

ort Loaded

Reach to Stool

Idle Rest Release

Load Discard

Summary LH RH Operation 15 15 Transport 2 2 Delay 5 4 Permanent NIL 1

Total 22 22

Since this data is gathered after watching the video, Measurements are taken as per

standards as observed in class. For example: Measurement of machine table and etc.

PROPOSED WORK PLACE LAYOUT

The only Drawback of previous layout was the stool where the output is being stored is too near to the

operator and is overloaded and hence, it disturbs the left hand motion of operator.

And the input is taken from the lap of the operator but as observed in Nishambhu as well, input is

carried by operators on their lap. Else a bar can be installed where one can hang the Trouser panel

Bar to hang

output

PROPOSED TWO HANDED CHART

LH Description

Therbligs

SYMBOLS SYMBOLS Therbligs

RH Description

Reach to the Trouser Panel

Transport Empty

Transport Empty

Reach to the Trouser Panel

Grasp the Panel

Grasp Grasp Grasp the Panel

Bring Panel Trans

port loaded

Transport loaded

Bring panel

Fold Use Use Fold

LH Description

Therbligs

SYMBOLS SYMBOLS Therbligs

RH Description

Place on the machine bed

P P Place on the machine bed

Align the Pocket bag

PP PP Align the pocket bag

Place the panel under Presser Foot

P P Place the panel under Presser Foot

Sew to Hold Use Use Sew to hold

Align PP PP Align

Sew with m/c Use Use Sew with m/c

Turn at 900 P P Turn at 900

Align PP PP Align

Sew with m/c Use Use Sew with m/c

Turn at 900 P P Turn at 900

Align PP PP Align

Sew with m/c Use Use Sew with m/c

Get Panel out of Presser foot

Use Rest Idle

LH Description

Therbligs

SYMBOLS

SYMBOLS Therbligs

RH Description

Reach to Stool

Transport Loaded

Rest Idle

Discard Releas

e load Rest Idle

Summary LH RH Operation 15 14 Transport 3 2 Delay NIL 3 Permanent 1 NIL

Total 19 19

Total motion of LH has been cut down to 19 from 22 and Total motion of RH has been cut down to 19

from 22. I.e. total reduction of 3 motions.

Delay of LH has been cut down to 0 from 5 whereas Delay of RH has been cut down to 3 from 4. I.e. a

reduction of 6 delays.

1 operation has been reduced from RH.

Permanent Storage remains the same.

Transportation increased by 1 of LH and RH’s transport remains the same.