| 摘要 |
A telescoping frame on a paving tractor (P) is provided with fixed male extension members (32, 34, 36, 38) and paired forward (BF) and paired rear (BR) side-by-side female tube members. The male extension members (32, 34, 36, 38) provide for movement of the point of crawler support and expansion of the paving width of the tractor frame. Extenders (E1, E2, E3, E4) are added for attachment to the supported end of the male extension members (32, 34, 36, 38) interior of the female telescoping members (BF, BR). During frame width expansion, the male telescoping members (32, 34, 36, 38) are expanded to register their ends interior of the female telescoping members (BF, BR) with attachment access ports (64, 66) in the female telescoping member. The extenders (E1, E2, E3, E4) are inserted, supported, and registered with the complimentary attachment apertures (64, 66), and attached to the male telescoping members (32, 34, 36, 38). Once attachment has occurred, further extension of the male telescoping members (32, 34, 36, 38) can take place.
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