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Designing a new joint for the iXa walker

Author(s)
Grove, Garth S
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Massachusetts Institute of Technology. Dept. of Mechanical Engineering.
Advisor
Warren Seering.
Terms of use
M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582
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Abstract
In the fall of 2009, the Purple team developed a walker which allows users to rise from a seated position by folding down to provide a set of handles which the user can push off of to aid in the standing process. The walker relies on a unique geometry and a joint that allows the walker to transition between the standing and kneeling positions. Several members of the team decided to continue the project in attempts to create a beta prototype that improved upon the flaws of the old design in attempts to create a patentable product. My area of focus in the redesign was creating the exterior of the joint including the locking pin interface, the alignment of the legs in relation to the joint, and the integration of the joint into the frame. After deliberating the costs and benefits of each feature, it was decided that the joint would have and axial pin, inline legs, and would be welded to the legs of the walker. These features were then used to create a new joint design. The design process was completed by analyzing the new joint for deflection, optimizing it for weight limitations and material costs, and looking at for design for manufacturing and assembly considerations. Overall, the goal of creating a new joint that could be implemented into a future iteration of the walker was achieved.
Description
Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2010.
 
Cataloged from PDF version of thesis.
 
Includes bibliographical references (p. 18).
 
Date issued
2010
URI
http://hdl.handle.net/1721.1/59929
Department
Massachusetts Institute of Technology. Dept. of Mechanical Engineering.
Publisher
Massachusetts Institute of Technology
Keywords
Mechanical Engineering.

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  • Mechanical Engineering - Bachelor's degree
  • Mechanical Engineering - Bachelor's degree

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