how it works
seat height
On the right side of the chair, the front handle will change the height of the front two legs, the back handle will do the same to the back two legs.
The right side handles are connected to a main thread which is internally housed in the seat frame. The main thread has two nylon dies which connect to a spring-type part, the spring part connects directly to the internal leg.
As you turn the handle, the rotating thread causes the nylon die to move left and right, pushing out the internal leg which then raises and lowers the chair legs.
backrest depth
Some musicians are taller, some musicians prefer to sit further back in their seats.
You can easily adjust the depth of the backrest up to 8cm to suit everyones seating preference.
The backrest is attached to two aluminium bent rods which are inserted into a rack. This rack is the one moving part of the three components working with the pinion and worm drive gears that allow the rotational movement of the turning handle to translate directly to linear motion of the back rest. Each full rotation you make with the handle will change the backrest depth by one cm.
backrest height
The backrest height can easily be adjusted with one hand. Simply push the centre lower panel to release and lock it to your selected height.
You can easily adjust the backrest height to suit your seated support preference. Musicians can increase the backrest height up to 8cm.
SESURA is designed with as few components as possible. The backrest height mechanism operates similarly to the adjustment of a car seat headrest.
Simply push the lower bar to unlock, lift up or down to selected height and release the push bar to lock in place.
ideas & process
Find out more about the design process of SESURA