Indian anthropometric dimensions for ergonomic design practice pdf

#Indian anthropometric dimensions for ergonomic design practice pdf manual#

Later in the year 1655 Stephen Farfler built a self-propelling chair on a three wheel chassis as shown in figure 3. LITERATURE REVIEW 2.1 History and Evolution of Wheel chair The first wheel chair was invented in the 1595 called as invalids chair was made for the king of Spain called Phillip. 2 Nomenclature of a Foldable wheel chairДў. ДЎ.4 Nomenclature of a simple rigid frame wheel chairДЇig. Use of two hand rims at a time gives straight movement of the chair, use of one of the rim gives the turning movement to the chair towards left or right. The hand rims are of diameter lesser than the rear wheels. Дriven by the user by using the rear wheels (diameter of 20-26вЂќ) which resembles to that of bicycle but has an additional rims know as hand rims are for the movement of the chairs by means of pushing forward or backward. Figure 1 & 2 shows the parts of rigid frame and X frame wheel chair and its parts. This device comes in many variations like self propelled, propelled by the motor or with the help of an attendee to push.

This is used for movement of physically disabled, elder people, children who have difficulty and are unable to walk. Arm rest creates obstruction while shifting the patient from wheel chair to vehicles, no solution in the existing design to make ease of shifting of patient to transportation vehicle.ДЎ.2 Wheel Chair A chair with wheels designed as a replacement for walking is known as wheel chair. The present design of brake needs to be improved for better impact and application of brake in slope area. The design of back rest in the existing wheel chair creates repetitive stress injury if the patient is sitting for a long time. Patients needs to be lifted up and helped to remove the dress and make them defecate, which is discomforting to the patients in emergency condition. 1 Nomenclature of a rigid frame wheel chairДЎ.5 Need for New Design in a Wheel Chair At present patients are facing problem while defecating. INTRODUCTION 1.1 Product Design Product design is the concept of systematic approach in understanding the user requirement, existing deficits, possible improvement and inventing new designs through idea generation, concept development, and concept realization thereby bringing newer products and solutions for the better quality of life.ДЇig. Industrial Design New Product Design Product Design Specifications Quality Function Deployment Repetitive Strain Injuries Voice of CustomerДЎ. Key Words: Mobility Device, Wheel Chair, Ethnographic Research, QFD, PDS.ДЎ.3 Nomenclature of a Simple Rigid Frame Wheel Chair Validation of the prototype is done and usage is found satisfactory. Additional to this alarm facility is provided to inform the attendee that there is a need of his / her presence to the patient. Facility provided for keeping plate while having food, reading and keeping water bottle. The adjustable arm rest provide ease of shifting the patient from chair to the bed or to the vehicle. Adjustable back rest, arm rest, leg rest provides comfort for the patient while resting. The final output is a wheel chair which gives multiple option to the user and attendee by providing ease of defecation, cleaning and changing of clothes. The feed back was taken from different users and attendees, concept generation and design execution was done by the implementation of design methodologies like Quality Function Deployment, Mind mapping, Product Design Specification. Ethnography study was done to observe the need, the importance of the existing product and to address the design gap in the existing product to the user need through questionnaries. Market study was carried out to know the present competators available in the market with cost analysis of the existing product. The design of wheel chair started by means of literature review to know its evaluation from earlier to the present generation.

#Indian anthropometric dimensions for ergonomic design practice pdf manual#

The redesign of manual wheel chair was considered for this project. Electrical powered wheel chairs runs with electric power however manual operation is required to operate the joystick for the movement of the chair.

Manual powered wheelchairs are driven by manual power which are again classified into foldable and non-foldable with or with out commode design. The wheel chair is divided into two different types based on the power used for mobility: 1. Ltd, BangaloreДЄbstract Wheel Chair is a mobility device designed for shifting patients, moving physically challenged people from one place to another with the help of attendee or by means of self propelling. 4- Technical Director, M/S Sidhi Vinayaka Fab Engineering Pvt.

Ramaiah School of Advanced Studies, Bangalore 560058. Design of Multipurpose Wheel Chair for Physically Challenged and Elder People 1 2 3, 4 Mohan Kumar R.