3-wheel handicap cycle

Worldwide, 100-130 million people need wheelchairs, but less 10% either own or have means of obtaining one because of these people live in developing countries where are not available. It is predicted that these figures rise by 22% over the next ten years for a number of , including but not limited to the aging baby-boomer , ongoing wars, re-habitation of areas infested with mines from prior conflicts, and other injuries. Design and functionality as a whole has been improved over the past several decades, but there is a need for new technology and innovative designs.

1. A PRESENTATION ON “ 3- WHEEL HANDICAPPED CYCLE " Submitted by: Guided by: Dinesh Singh (1 53200089 ) Mr. Saurav Sikarwar Gulshan Kumar (153200113) (Lecturer-M.E Deptt.) Govind Garg (153200109) Anmol (153200032) Co-Guide: Mr. Sanjay Kumar ( Lab Assistant, M.E. Deptt.) Department of Mechanical Engineering UNIVERSITY POLYTECHNIC G.L.A UNIVERSITY, Mathura (U.P.) SESSION- 2017-2018

2. INTRODUCTION Worldwide , 100-130 million people need wheelchairs, but less 10% either own or have means of obtaining one because of these people live in developing countries where are not available. It is predicted that these figures rise by 22% over the next ten years for a number of , including but not limited to the aging baby-boomer , ongoing wars, re-habitation of areas infested with mines from prior conflicts, and other injuries. Design and functionality as a whole has been improved over the past several decades, but there is a need for new technology and innovative designs. The of assistive device users are over age 65, with expected as the baby boomers age and the life expectancy increases.

3. Working principals 1. When we apply the force on steering in forward and backward direction liver and crank provide the motion to wheel chair by converting the sliding motion into rotary motion. 2. The motion of direction of wheelchair is controlled by steering. 3. The device is operated by to and from motion of steering which help to rotate the wheel , the turning action takes place by tilting the steering forward and backward direction.

4. OBJECTIVE It is a home made 3-wheel handicapped cycle. It is simple and light weight Disc brakes A wheelchair and hand cycle hybrid that a self-propulsion mechanism that converts push pull motion to forward movement, such as 8 speed hub gear. Bicycle style steering. Foot stirrup. Gearing for hills. Anti rollback mechanism. 16 " front and 20" rear wheels. Internal hub gear. Integrated driveshaft.etc.

5. SCOPE & FUNCTION SCOPE:- 1.It is used for very large amount of Japan. 2. If need to be handicapped human. 3. Then it was need of in market used for handicapped human.   FUNCTION :- 1. More powerful up to hand are move on. 2. Manuel control. 3. The motion of direction of wheelchair is controlled by steering. 4. Pressure can be adjust ,etc

6. HARDWARE & RESOURCE HARDWARE :- Welding Machine. Screw Driver . Drill Machine. Lathe Machine etc . RESOURCES :- We use the some material such as :- 1. Still alloys commonly used for wheelchairs are mild steel, alloy steel, and chromium-nickel molybdenum alloy steel. 2. Due to cost and availability restrictions, the team will likely a combination of aluminum and steel to construct the assesory .  

7. Fig.2 Steering Fig.1 Bearing Fig.3 Break pad Fig.4 Internal hub gear

8. Fig.5 Cable yoke Fig.6 Wheel Fig.7 Break Lever

9. VEHICLE MECHANICS In order to optimize performance and endurance, the vehicle losses must be minimized and the hand cycle well . Rolling resistance issues that play in hand rim are equally relevant in hand cycles. Rolling must be minimized through lightweight design and material, wheel alignment and maintenance.        

10. BREAKING & PROPULSION 1. The propulsion system must move the wheelchair and be in both the forward and reverse directions. 2. Brakes must be able to slow the wheelchair in addition to it to a complete stop. 3. The basic function of brakes is to slow or stop a moving (i.e. wheels) to prevent loss of control of the object. 4. The brake lever cannot require more than 35 pounds of grip force to actuate.

11. DETAILS DIMENSIONS (cm) Distance between center of two rear wheels 72 cm Between center of front and rear wheel 128 cm Length of connecting rod 50 cm Radius of pedal 8 cm Length of rear axle 35 cm Heat of seat from center of rear exal 37 cm Height of steering from footpad 67 cm Length of steering rod 55 cm Length of outer rod 47.5 cm iameter of steering wheel 32 cm Length of direction rod 67 cm Distance between center of front and steering rod (at center position) 67 cm eight of seat from footpad 37 cm and Height of footpad from ground 33 cm  

12. Steering systems 1.The user must be able to steer the chair at all times, unless an attendant is pushing the Chair. Maintaining control of the direction of the chair at all times is essential not only for user safety , but also to maximize the independence of the individual . When there is not an attendant pushing the chair, the user must have full control to be able to safely manoeuvre it. 2 . The modification accessory cannot interfere with an attendant’s ability to push/control the chair. This will be accomplished by providing a means of disengaging the

13. CONCLUSION The hand cycle has evolved into a contemporary assistive for sports, leisure and daily use, as well as for training, . Even in rehabilitation, hand cycling is being as a good training alternative in early rehabilitation also frail individuals. It is expected that the current booming development of crank propelled tricycles in the industrialized countries serve not only the young and active wheelchair user, but also the less well-trained individual or those with more extensive limitations.    

14. References 1. www.youtube.com 2. www.wikipedia.com 3. R.S. Khurmi “Theory of machine” 4. R.K. Rajpoot “Machine Design” 5. N ehru Place “New Delhi”