Patent ID: 11970024
Assignee: nan
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 8:
9. The wheel traction device as claimed in claim 1, wherein:
said first connecting portion of said bearing unit further has a first linking wall that extends in the second direction, and that is formed with a plurality of first through holes;
said second connecting portion of said guiding unit further has a second linking wall that abuts against said first linking wall, and that is formed with a plurality of second through holes registered respectively with said first through holes; and
said fastening unit includes a plurality of main fastening groups, each of said main fastening groups having a main bolt that extends through a respective one of said first through holes and a respective one of said second through holes, and a main nut that is threadedly engaged with said main bolt for securing said first and second linking walls together.