| 摘要 |
<p>The present invention relates generally to improvements in the structure of door panel supporting carriages, and more particularly to the roller securing section of such carriages. The embodiment of the invention disclosed herein includes a carriage frame having oppositely disposed pintles extending therefrom and rollers carried by said pintles, the outer extremities of each pintle being slightly enlarged. The roller associated with each pintle has a central aperture the diameter of which is slightly less than the outer diameter of the pintle enlargement, said rollers being sufficiently yieldable to permit telescopic assembly thereof with a complementary pintle.</p> |
