This document proposes the Efficient Mechanical Rickshaw (EMR), which aims to reduce the effort required for rickshaw drivers. It does this by installing spiral springs that store energy when the pedals are rotated in reverse, and provide assistance when pedaling forward. This stored mechanical energy helps increase starting torque and reduce the load on the driver. The conceptual design utilizes spiral springs made of spring steel, and costs less than battery or solar-powered alternatives. An overall goal is to help rickshaw drivers overcome problems like requiring high starting torque, climbing hills, and operating when overloaded.

1. Presented by : Ritesh Rai
Rohit Karotia
Shiva Chauhan
(B. Tech III Year -Mechanical Engineering)
Session 2012-16
Dronacharya Group of Institution, Greater
Noida
Efficient Mechanical Rickshaw(EMR)

2. Content
 CYCLE RICKSHAW
 PROBLEM FACED BY RICKSHAW MAN
 OBJECTIVE OF EMR
 CONCEPT OF EMR
 SPIRAL SPRING
 CONCETUAL DRAWING
 ALTERNATE SOLUTION
 CONCLUSION

3. CYCLE RICKSHAW
(Introduction)
 In India there are many rural areas and modern cities where the manual
cycle rickshaw & cart rickshaw is mostly used as a transporting medium or
load carrying purpose though the rickshaw is used in almost every part of the
country.
 starting torque required is very high when the rickshaw is loaded.

4. PROBLEM FACED BY RICKSHAW MAN
 High starting torque required
 Starting from sudden stopping
 Going up hill
 Operating while overloading

5. OBJECTIVE OF EMR
 To utilize the mechanical energy or waste mechanical energy stored in
spiral springs.
 To increasing the starting torque
 To reduce the human effort
 Help to enhance the speed

6. CONCEPT OF EMR
 installed a small mechanism of spiral springs in rickshaw
which is low in cost and can help the rickshaw-man to
overcome from problem faced
 energy gets stored in the spiral springs when the pedals
are rotated in reverse direction
 the stored energy in the spiral springs get utilized as soon
as the rickshaw-man starts pedaling in clockwise direction
 Energy can be utilized at any time while operating as the
energy is stored very quickly

7. Spiral Spring
 Material used for Spiral springs:
The most suitable material for springs are those which
can store up the maximum amount of work or energy in a given
weight or volume of spring material, without permanent
deformation. These steels should have a high elastic limit as well as
high deflection value.
 Types of Spiral Spring :
 Power Spring
 Hairspring
 Brush Spring
 Constant Force Springs
 Spring steel

8. CONCEPTUAL DRAWING

9. ALTERNATE SOLUTION
 Battery operated Rickshaw
 E Rickshaw
 Auto Rickshaw
 Solar Rickshaw

10. COST EFFECTIVE SOLUTION
 Battery operated Rickshaw Rs 40,000/-
 E Rickshaw Rs 50,000/-
 Auto Rickshaw Rs 1,50,000/-
 Solar Rickshaw Rs 2,00,000/-
 Efficient Mechanical Rickshaw Rs 25,000/-
Hence EMR is having less capital cost as well as it does not require
any extra running cost of fuel.

11. CONCLUSION
 We with our sincere efforts are able to
materialize the idea as conceptual working
model. The device with further refinements and
modifications shall prove as an asset for reduction
in starting torque.