
Hercules Prime US
A strong solution is needed for children, young people and adults with physical and neurological disabilities – so that they are always safe in the car.
Special Needs & Adaptive booster seat that grows with your child for years
For children, young people and adults who weigh between 40 lbs and 176.4 lbs (18.1 and 80 kg) AND whose height ist between 51.1 and 70.9" / 130 and 180 cm. Person must always be secured with vehicle's 3-point safety belt. Integrated 5-point harness provides positioning support only.
Hercules Prime US has its great performance when adaptive car seats have become too small or more support is needed when sitting in the car. As a modular positioning booster seat that grows with the user, it offers the familiar functions of our special needs car seats and can be very individually adapted with a large selection of accessories that grow with the user. When more support for the head and upper body is needed, a simple belt system in the car is not enough. For a good, safe sitting position on every journey.

Pioneer since 1988
Thomashilfen has been providing children with special needs with adapted car seats for over 30 years. Today we also use our know-how to develop our own special needs booster seats for children, young persons and adults. They incorporate all our many years of experience around the needs of users and their relatives.
Large becomes small & handy
The adaptive booster seat can be quickly folded to a small, handy size in a few simple steps. This not only facilitates installation in the vehicle. – The positioning booster seat can also be easily transported in small car trunks and can be stowed away to save space.
Swivel and tilting function
Tilting function up to 10° provides more seating comfort for users with weak upper body control. Swivel function facilitates transfer for users and care givers. Booster seat rotates to the right side only.
Shoulder width
Slim and broad users with a shoulder width of 42 to 51 cm / 16.5 to 20.1" sit well supported at all times. The shoulder guides (accessory) grow with the user and are infinitely variable and individually adjustable for each side - even asynchronously.
Hercules Prime US meets the needs of children, young people and adults with following clinical pictures, who are not able to sit freely and independently: cerebral palsy, autism, hypotony syndrome of unspecific genesis, muscular dystrophy & different diseases.
Technical data
Hercules Prime US | |
---|---|
Seat depth | 40 - 46 cm / 15.7 - 18.1" |
Depth behind crotch strap | 24 - 38 cm / 9.5 - 15" |
Seat width | 40 cm / 15.7" |
Seat to head | 63 - 76 cm / 24.8 - 29.9" |
Back width (seat) | 45 cm / 17.7" |
Shoulder height (belt guide) | 38 - 60 cm / 15 - 23.6" |
Shoulder width (with shoulder guide) | 42 - 51 cm / 16.5 - 20.1" |
Back angle (max.) | 120° |
Seat tilt-in-space (with tilting base 10°) |
0° / 2,5° / 5° / 7,5° / 10° |
Lower leg length (with foot rest)) | 17 - 43 cm / 6.7 - 16.9" |
Height of lateral trunk supports (upper edge) | 26 - 36 cm / 10.2 - 14.2" |
Distance lateral trunk supports rigid | 19.05 - 35 cm / 7.5 - 13.8" |
Distance lateral trunk supports swing away | 22.86 - 39.88 cm / 9 - 15.7" |
Max. overall dimensions (w x h x d)) | 52 x 88 x 43 cm / 20.5 x 34.6 x 16.9" |
Min. folded dimensions (w x h x d) | 52 x 21 x 73 cm / 20.5 x 8.3 x 28.7" |
Weight of seat (basic model) | 13.4 kg / 29.5 lbs |
Body height user | 130 - 180 cm / 51.1 - 70.9" |
User weight | 18.1 - 80 kg / 40 - 176.4 lbs |
Standard features:
Back with integrated height adjustment | seat with integrated seat depth adjustment | continuous back angle adjustment with quick release lever | swivel function incl. swivel lock (right vehicle door) | tilting function 10° (adjustable in steps) | breathable upholstery: head cushion, back cushion, pelvic cushion, seat cushion, crotch pad | 5-point belt including shoulder pads | upper belt guide for vehicle’s lap and shoulder belt (can be used on the right or left) | prepared mounting options for all accessories | removable covers, machine washable
Hercules Prime US
Registration
Please register your Hercules Prime US. Use the form below. Please enter the correct serial number, see the image:
Downloads
Video
Installation Hercules Prime US
Installation – crotch strap
Installation – shoulder guides
Installation – shoulder straps
Installation – seatfix adapter
Installation – stabilizing bow
Installation – abduction block
Installation – leg guide
Installation – footrest, foldable
Installation – of the stand
Installation – lateral trunk supports, firm
Installation – lateral trunk supports, swing-away
Installation – chest clip
Installation – Headrest
Installation – upper body guide, firm
Installation – upper body guide, swing-away
Installation – hip belt