Air Suspension Wrench

A strap wrench as claimed in claim 8, wherein said drive receiving element comprises a drive spigot provided on an end of said toothed drive wheel or an axially extending recess provided in an end of said toothed drive wheel.

A strap wrench as claimed in any one of the preceding claims, wherein said fixed portion of said toothed band is disposed between a first anchor member and a second member and at least one third anchor member, said first and second anchor members engaging said toothed side and said at least one third member engaging said non-toothed side such that said fixed portion is fixed between said first, second and third anchor portions.

A strap wrench as claimed in any one of the preceding claims, wherein said guide member is a rod.

A strap wrench as claimed in any one of the preceding claims, wherein said guide member is removably mounted to said drive wheel mounting.

An air suspension wrench 1, comprising, a drive unit 20 which includes a drive unit axle 30 with output drive cog 33 protrusions on its periphery and an input drive recess 32 within its centre, with trunnions 31 either end and incorporating circlip grooves 35 for retaining circlips 36 or the like, said drive axle trunnions 31 rotationally held within end plate axle bushes 401, the end plates 400 further retained in position by a spacer plate 50 having distancing shoulders 53 and secured by riveting portions 54 within the end plate spacer plate recesses 403, further creating a drive unit restricted passage 21 through which the cam belt free end 64 can pass, whereby when its incorporated cam belt cog protrusions 61 are fully engaged within the drive axle cog recesses 34, whereas the cam belt inner drive surface 65 is now capable of traversing against the spacer plate guide surface 51, further characterized by the fitment of a rotational pin 71 that is removable in order to fit the cam belt free end 64 and after fitment of said rotational pin 71 this ensures that at least four of the cam belt free end 64, cam belt cog protrusions 61 are engaged into the corresponding drive axle cog recesses 34 in order to distribute the applied drive torque DT over twice as many cam belt cog protrusions 61 as in the prior art, considerably reducing the incidence of wear or failure.