{"id":47581,"date":"2024-06-19T10:55:54","date_gmt":"2024-06-19T08:55:54","guid":{"rendered":"https:\/\/frh-fondation.ch\/project\/adjusting-the-wheelbase-of-a-test-wheelchair\/"},"modified":"2024-11-19T17:20:09","modified_gmt":"2024-11-19T16:20:09","slug":"adjusting-the-wheelbase-of-a-test-wheelchair","status":"publish","type":"project","link":"https:\/\/frh-fondation.ch\/en\/project\/adjusting-the-wheelbase-of-a-test-wheelchair\/","title":{"rendered":"Adjusting the wheelbase of a test wheelchair"},"content":{"rendered":"[et_pb_section fb_built=”1″ _builder_version=”4.17.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_row _builder_version=”4.17.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.17.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.17.0″ _module_preset=”default” custom_padding=”0px||6px|||” global_colors_info=”{}”]\n

Adjusting the wheelbase of a test wheelchair<\/span><\/strong><\/h1>\n

Lateral wheelbase adjustment system for a test wheelchair<\/span><\/strong><\/h4>\n

 <\/p>\n

Type of project:<\/strong> Prototype<\/span><\/p>\n

Disability concerned:<\/strong> Motor disability<\/span><\/p>\n

Topics:<\/strong> Autonomy, Health, Comfort, Ergonomics<\/span><\/p>\n

Status:\u00a0<\/strong>Completed<\/span><\/p>\n[\/et_pb_text][et_pb_text _builder_version=”4.17.0″ _module_preset=”default” hover_enabled=”0″ global_colors_info=”{}” sticky_enabled=”0″]\n

The aim of this project was to develop a test wheelchair (TWC)\u00a0that would enable all the necessary adjustments to be made so that the most suitable wheelchair could be ordered for a person with a disability.<\/h5>\n[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”1_3,1_3,1_3″ _builder_version=”4.17.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”1_3″ _builder_version=”4.17.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.17.0″ _module_preset=”default” global_colors_info=”{}”]\n

The test wheelchair (TWC) is a wheelchair that enables all the necessary adjustments to be made so that the most suitable wheelchair can be ordered for a person with a disability. Loaned by a shop for a limited period, it is used to determine the characteristics of the final wheelchair to be ordered from a supplier. The aim of this project was to demonstrate the feasibility of the most complex adjustment to be made, that of the lateral wheelbase (overall width). The aim was to produce a prototype of the concept integrated into a wheelchair in the form of a 3D drawing, as well as a demonstrator of the principle. At the start of the project, the TWC was to include only lateral wheelbase adjustment, but discussions with the partners led to a change in demand and the desired settings on the TWC. The lateral wheelbase adjustment proved to be of little interest to users and was abandoned.<\/p>\n[\/et_pb_text][\/et_pb_column][et_pb_column type=”1_3″ _builder_version=”4.17.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.17.0″ _module_preset=”default” global_colors_info=”{}”]\n

However, the new TWC concept had to include the possibility of adjusting seven parameters, including seat depth, front and rear seat heights, and the position of the rear wheels in relation to the backrest. In this project, we assessed the feasibility of technical solutions for these different adjustments. Some can be done with simple sliding rods, but others are interdependent and require a more complex solution. A system with two jacks was proposed as a simple, light and innovative solution. At the end of the project, we produced a 3D drawing of the TWC with all the desired adjustments, demonstrating the technical feasibility of such a chair.
The first learning from this project was the change in demand that took place during the kick-off session. Although the subject had already been the subject of a student project in 2022, and the team members had worked together to draw up the funding application, actually tackling the project generated discussions that led to the conclusion that the setting initially chosen for the TWC was not relevant.<\/p>\n[\/et_pb_text][\/et_pb_column][et_pb_column type=”1_3″ _builder_version=”4.17.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.17.0″ _module_preset=”default” global_colors_info=”{}”]\n

The project was therefore completely redefined. The exchanges between HEI, Helios Handicap and the Wheelchair Club were very instructive, showing that the choice and adjustment of wheelchairs is a highly specialised field requiring a great deal of experience. Translating this into technical specifications and understanding each other’s specific vocabulary was an interesting challenge.
The next stage of this project is to carry out the detailed design of the TWC: mechanical sizing, choice of components, drawings of the mechanical parts, assessment of the manufacturing processes and the cost of producing the TWC. As no such test chair currently exists on the market, the solution proposed for the TWC is innovative and could have a real beneficial impact on the quality of life of people with disabilities, as well as reducing costs due to unsuitable features on a chair (at the time of the initial order or in the case of progressive disabilities). We see great potential in this area, and very much hope to convince a partner to bring it to market.<\/p>\n[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=”4.17.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.17.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_image src=”https:\/\/frh-fondation.ch\/wp-content\/uploads\/2024\/11\/Empattement-300×290.png” alt=”Illustration of the wheelchair prototype.” title_text=”Empattement” align=”center” _builder_version=”4.17.0″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][\/et_pb_row][et_pb_row disabled_on=”off|off|off” _builder_version=”4.17.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.17.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.17.0″ _module_preset=”default” text_font=”|300|||||||” text_line_height=”-1.3em” max_width=”100%” global_colors_info=”{}”]\n

Contact information<\/strong><\/h4>\n

HES-SO Valais-Wallis, Institut Syst\u00e8mes Industriels<\/p>\n

Laurent Rapillard<\/p>\n

laurent.rapillard@hevs.ch<\/a> \u00a0<\/p>\n[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section]\n","protected":false},"excerpt":{"rendered":"

The aim of this project was to develop a test wheelchair (TWC)\u00a0that would enable all the necessary adjustments to be made so that the most suitable wheelchair could be ordered for a person with a disability.<\/p>\n","protected":false},"author":41,"featured_media":48745,"comment_status":"open","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":""},"thematiques":[204],"project_category":[164],"project_tag":[171],"acf":[],"yoast_head":"\nAdjusting the wheelbase of a test wheelchair - FRH Fondation<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/frh-fondation.ch\/project\/reglage-de-lempattement-dun-fauteuil-roulant-test\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Adjusting the wheelbase of a test wheelchair - 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