| 摘要 |
PROBLEM TO BE SOLVED: To prevent an operator from carelessly pushing down an operation lever in the state of pulling up an unload lever.SOLUTION: A work machine includes a steering box turnably pivoted on a supporting bracket lateral to an operator seat via a first horizontal shaft, the operation lever provided on the steering box, the unload lever rockably supported on the steering box, a cam body turnably pivoted on the steering box via a second horizontal shaft, and having a cam groove, and a guide pin located on one side of the cam groove when the unload lever is at a pushed-down position and on the other side when it is at a pulled-up position, the unload lever having a lock part to be locked to the guide pin when the guide pin is on the other side of the cam groove.SELECTED DRAWING: Figure 9 |
