Variable Pinch-Force Prehensor


Manufactured by TOUGHWARE PRX

My role: Engineering and design of injection molded, cast aluminum and metal laser sintered version.

Time allocated: 2 years

Deliverables: Inventory of all version parts.

Requirements: Aesthetic appearance, broad and compliant gripping surfaces to provide secure and stable grasp, easily replaceable grip pads, gripper that allows for “back-handed” use for less pre-positioning, pinch-force adjustability, ability to replacing elastic bands with no tools or need to remove device, ability to use ordinary rubber bands for custom-tailor grip force, ability to exchanges one-for-one with most adult split hook models, no harness adjustment needed, accepts 9/32” standard ball terminals (3/16” connector plate option is available), includes industry-standard ½-20 UNF threaded mounting boss, accepts most commercial quick disconnect (QD) adapters with ½-20 UNF thread, removable “thumb” plate for stabilizing flatware, writing utensils, etc., easy to clean and maintain.

Status: On time and on budget.

 
 

ENGINEERING

 
 

DESIGN

 
 

PROTOTYPE

 
 

TESTING

 
 

HIGH-STRENGTH POLYMER RESIN INJECTION MOLDED VERSION

 
 

ALUMINUM CASTING VERSION

 
 

DIRECT METAL LASER SINTERING VERSION