These typical fasteners originate from the Gudo beginning, and were used by well known ski boot manufacturers. Later the applications became more diversified, e.g. in industry, cars, also in boots and shoes.
Lever fastener for textile straps. The principle is the same as the ski boot buckle, but is in combination with a textile strap. Usually used in the orthopaedic area. For light applications and especially due to the memory effect, it is also preferable to the brute force of a steel cable.
Tension fastener with round stirrup. The practically infinitely variable preset adjustment can be achieved with a clip and toothed belt. Simple handling with a large scale effect.
The Aluminium or plastic ski boot buckles are used in combination with an insulated steel cable. The tension adjustment is achieved through a system using fine teeth which is integrated in the base plate. As an alternative, a customer specific version is available in steel which is employed by the firm Strolz.
The stirrup can be simply inserted in the belt. Arresting through tipping the stirrup and depending upon which lever slot is used, the tension in the belt can be varied.