WheelyMate

What it does

Wheelchair users often struggle to carry their personal belongings with ease and convenience. Our storage solution provides a simple and efficient way to store and transport items, empowering users with greater independence in their daily lives.

Your inspiration

As part of our year-long Master’s program, we were tasked with designing and building a product of our choice. Our team focused on assistive technologies to make daily life easier for people with disabilities. We wanted to make a difference and highlight an often overlooked challenge. After speaking with wheelchair users, we learned how difficult it is to carry personal items: bags fall, get tangled, or are out of reach. With accessibility in mind, we created a simple, adjustable storage system that feels built into the wheelchair. Using feedback, sketches, and prototypes, we designed a solution that supports daily independence.

How it works

We divided the product into two main parts: the core device and customizable accessories that attach to the bar. -The core device includes a bar and redesigned armrests. -Accessories include: *Bag Clips for securely attaching bags *Clip-on Tray, a collapsible surface for personal items or meals *Fanny Pack for essentials *Bags: a waterproof large zipper bag and two smaller collapsible bags *Off-the-shelf accessories The device is easy to use. Our redesigned armrests maintain the same screw placement but include an integrated tube that holds a sliding bar. The bar adjusts in length and attaches quickly with G-locks. At this stage, users can add accessories, whether bulky items like backpacks and grocery bags or practical additions like the clip-on tray. When not in use, it rests parallel to the wheels, and when in use, it connects securely between the two armrests. Users simply swap out their existing armrests and can use the chair with or without the bar.

Design process

This Master’s project was completed over two advanced design courses at Boston University. Firstly, we conducted market research, benchmarked existing solutions, and surveyed wheelchair users. Based on this, we defined product requirements focused on simplicity, ease of use, and adaptability. We brainstormed and sketched ideas, narrowing them down based on user needs and feasibility. We then created CAD models and basic mockups using a real wheelchair to test fit. Armrest prototypes were 3D printed to explore shape and ergonomics. FEA simulations helped define specs for the main bar, targeting a 40 lb load with a 4× safety factor. The device was designed with DFMA principles, and detailed manufacturing drawings were created using GD&T and tolerance analysis. Final prototyping took a full semester and multiple iterations. Armrests were sand cast using 3D-printed patterns and sodium silicate cores, then machined with waterjet cutting, wire EDM, and drilling. Foam and leather cushions were added. The aluminum bar was bent and refined through several versions. G-locks were used to attach the bar to the armrests. We also designed a clip-on tray and custom sliding clips, that were 3D printed. Off-the-shelf bags were modified, and all parts painted to match wheelchair aesthetics.

How it is different

Most wheelchair storage solutions on the market are hard to access independently, lack stability, and don’t adapt well to different user needs or wheelchair types. They often feel like bulky add-ons rather than integrated, customizable systems. No similar product currently exists on the market. Based on competitor analysis and market research, our solution brings a unique and innovative approach to enhancing independence and accessibility for wheelchair users. WheelyMate has the following advantages: -Compact, modular, and aesthetically integrated -Customizable storage space without compromising mobility -Side-mounted, detachable design with a sliding bar mechanism -Compatibility with most wheelchair frames -Holds multiple accessories at the same time -Belongings remain always in sight -Cost-effective and purely mechanical -One Allen key is needed to assemble only This solution best meets user needs for ease of access, security, and everyday usability.

Future plans

In today’s world filled with complex technology advancements, we believe there’s real value in keeping things simple. We see this product as a first step toward improving the everyday experience for wheelchair users by focusing on intuitive and easy-to-use design. From the start, simplicity has been our priority. We wanted something that doesn’t add complexity but fits naturally into daily life. As we continue developing the design through user feedback, our goal is to make it even more adaptable while staying true to that core idea. It may not change the entire world, but it has the power to meaningfully improve someone’s world!

Awards

This project concluded in May and received valuable feedback from industry professionals and professors who believe it has strong potential to move forward and enter the market. We hope this award marks the beginning of a meaningful and impactful journey.