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Publication of NL6803297ApublicationCriticalpatent/NL6803297A/xx
B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
B60C27/00—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels
B60C27/02—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels extending over restricted arcuate part of tread
B60C27/04—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels extending over restricted arcuate part of tread the ground-engaging part being rigid
B60C27/045—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels extending over restricted arcuate part of tread the ground-engaging part being rigid involving retractable devices
B—PERFORMING OPERATIONS; TRANSPORTING
B60—VEHICLES IN GENERAL
B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
B60B15/00—Wheels or wheel attachments designed for increasing traction
B60B15/26—Auxiliary wheels or rings with traction-increasing surface attachable to the main wheel body
B60B15/263—Traction increasing surface being located axially beside tyre
B—PERFORMING OPERATIONS; TRANSPORTING
B60—VEHICLES IN GENERAL
B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
B60B15/00—Wheels or wheel attachments designed for increasing traction
B60B15/26—Auxiliary wheels or rings with traction-increasing surface attachable to the main wheel body
B60B15/266—Traction increasing surface being located radially outside tyre circumferential surface