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

Claim 10:
11. The wheel traction device as claimed in claim 9, wherein:
said first connecting portion of said bearing unit further has two first side upright walls that are disposed respectively at said opposite sides of said receiving space in the second direction, and two first side linking walls, each of said first side linking walls being transversely connected to a respective one of said first side upright walls and formed with a plurality of first punch holes;
said second connecting portion of said guiding unit further has two second side linking walls that are opposite to each other in the second direction, each of said second side linking walls abutting against a respective one of said first side linking walls, and being formed with a plurality of second punch holes which are registered respectively with said first punch holes of said respective one of said first side linking walls; and
said fastening unit further includes a plurality of side fastening groups, each of said side fastening groups having a side bolt that extends through a corresponding one of said second punch holes of a corresponding one of said second side linking walls and a corresponding one of said first punch holes of a corresponding one of said first linking walls, and a side nut that is threadedly engaged with said side bolt for securing the corresponding one of said first linking walls and the corresponding one of said second side linking walls together.