| 摘要 |
An improvement is realized in mutual assembly strength between a swing bearing member and right and left longitudinal ribs, and welds are subjected to a reduced stress concentration. A backhoe comprises a swivel deck ( 10 ); a first longitudinal rib ( 19 L) disposed on the swivel deck, the first longitudinal rib extending in a fore and aft direction, and having a front portion ( 19 La) extending in a transverse direction; a second longitudinal rib ( 19 R) disposed on said swivel deck, the second longitudinal rib extending in the fore and aft direction, and having a front end thereof connected to the front portion of the first longitudinal rib; and a swing bearing member ( 20 ) attached to a front surface of the front portion of the first longitudinal rib for supporting a ground working implement through a swing shaft.
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