Jizai Arms Supernumerary Robotic Limb System by Team Jizai Arms is a highly esteemed winner of the very prestigious 2023 Golden A' Design Award in Cybernetics, Prosthesis and Implant Design Competition Category.
GoldCybernetics· 2023
Jizai Arms Supernumerary Robotic Limb System
Client: The University of Tokyo
Golden A' Design Award Winner in Cybernetics Category
Verified Award Winner
Verify Award Status for #148712The Design
About Jizai Arms Supernumerary Robotic Limb System
Jizai Arms is a supernumerary robotic limb system worn on the body. The system consists of a wearable base unit with six terminals and detachable robotic arms, each with five degrees of freedom. The arms can be attached and removed quickly, so wearers can exchange arms with one another. Exterior parts are produced by three-dimensional printing, which allows complex shapes and reduces weight. The arms are operated through a half scale model moved by hand, and the posture of the model is applied directly to the robotic arms.
The Recognition
About the Golden A' Design Award
Jizai Arms Supernumerary Robotic Limb System is a Golden A' Design Award winner, an immensely prestigious recognition granted to first-rate, marvelous, and outstanding designs. Golden winners are exceedingly innovative, visionary, and glamorously dazzling creations that reflect the prodigy, wisdom, and prowess of their designers. Jizai Arms Supernumerary Robotic Limb System is expected to be a highly praised, trendsetting, and monumental invention that delivers unprecedented value. This Golden A' Design Award-winning design is a spectacular, respected project that highly benefits and advances the boundaries of art, science, design, and technology. Jizai Arms Supernumerary Robotic Limb System creates intense feelings of desire, evokes passion, encourages creativity, and fascinates us.
Where to Get It
Human Augmentation and Cybernetics Research
We pioneer supernumerary robotic limb systems and human-machine integration technologies at the forefront of cybernetics research. Our award-winning work explores the future of digital cyborgs and embodied experiences, advancing the possibilities of human augmentation through innovative wearable robotics and collaborative research partnerships.
Learn MoreBehind the Design
Press Kit
Credits, team members and technical details provided by the designer.
- Unique Properties
- JIZAI ARMS is a supernumerary robotic limb system.
It was designed to enable social interaction between multiple JIZAI ARMS wearers such as an exchange of arms.JIZAI ARMS is a supernumerary robotic limb system consisting of a wearable base unit with detachable robotic arms. The system has been designed to enable social interaction between multiple wearers, such as exchanging arms, and to explore possible interactions between digital cyborgs in a cyborg society. - Dimensions & Packaging
- Width 900mm x Depth 400mm x Height 1000mm
*A system contains attachable/detachable robotic limb and wearable base unit, dimensions changes up to layout and posture of arms. - Tags
- Cyborg, Digital Cyborg, Social Digital Cyborg, Supernumerary Robotic Limb System, Robotic Limbs, Wearable Robotic Limbs, Human-Machine Integration, Human-Computer Integration, Robotics, Human-Robot Integration
- Production Technology
- This system contains a wearable base unit which has six terminal to attach arms and board to communication, and robotic arms with 5 DOF.
Exterior parts are designed with organic and complex shape to cover only necessory part and make it lighter, 3D printing enabled these complex shape.
We designers worked from considering basic engineering specification like motor layout and geometry of arms, to finalize exterior design.
This process made sophisticated design. - Design Challenge
- Enabling quick and free attach/detach of arms is a core concept of JIZAI ARMS and system design for this feature was one of a hard point.
Production team invented connection system enables easy attach/detach and connect both electrically and physically, but stiff enough as a base of robotic arms.
From styling perspective, achieving a beautiful fusion of human body and machine was a challenging point. We designed this robotic system rationally but tried designing it visually fit to human body. - Research
- JIZAI ARMS is a prototype to explore possible social interactions between digital cyborgs in a cyborg society, such as gifting body parts or exchanging arms.
In existing research in human augmentation, interesting changes of embodiment happened through using wearable robotics has reported.
We focused not only individual wearer but also embodied experience happen between multiple digital cyborgs, and made JIZAI ARMS as a prototype to make such experiences real. - Inspiration
- In “One Arm”, Nobel Prize-winning author Yasunari Kawabata wrote a weird scene that a girl gives her arm to a man and a man stay a night with it.
He vividly described a man’s experience at the night with his wide-ranging emotional changing.
After a half a century, emerging human-machine integration technologies have begun to allow us to physically experience Kawabata’s world.
“JIZAI ARMS” are designed to explore possible interactions between digital cyborgs in a cyborg society. - Project Duration
- The project started in Nov 2021 in part of JST INAMI JIZAI BODY PROJECT and completed production in September 2022. JIZAI ARMS has firstly used and shown in dance performances in JIZAI Collection held at Tokyo in Novenber 2022.
- Operation Flow
- JIZAI ARMS is a system contains wearable base unit and detachable robotic arms.
Robotic arms which connected to base unit are controlled by computer.
In current prototype, robotic arms are controlled using a 1/2 scale model as a controller, operator can control arms with moving a model like puppet.
Using this controller, operator controll robotic arms intuitively since a posture which operators made with model is directly applied to actual robotic arms. - Team Members
- Design & Production: Nahoko Yamamura, Daisuke Uriu, Mitsuru Muramatsu, Yusuke Kamiyama, Shin Sakamoto, Shunji Yamanaka
Research Director: Masahiko Inami
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