Ratchet spanner, for vehicle jack, has collar on one side of ratchet wheel passing through boring in casing layer

摘要

The spanner has a ratchet wheel (5) with a collar (4) on one side of it, passing through a boring in one of the casing layers. The components are so arranged that they are not subjected to much wear and can thus be made lighter and able to lie positively at the inside against two surfaces of the guide (10).