| 摘要 |
Trailer apparatus includes pneumatic shock absorber assemblies for absorbing road shocks as the trailer moves and for raising and lowering the trailer evenly. The trailer apparatus also includes king pin assemblies which may be moved relative to wheel spindles for enhanced steering while the trailer is being pulled and while the trailer is being backed up. Three embodiments of king pin assemblies and two embodiments of pneumatic shock absorber assemblies are disclosed.
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