| 摘要 |
PROBLEM TO BE SOLVED: To extend a range in which a positional relationship between a sensor and the other member can be adjusted with respect to a manufacture error, an assembling error, etc. SOLUTION: In a hydraulic excavator in which a boom and an arm are connected together in a relatively rotatable manner by a connecting shaft, a sensor 11 is provided for the boom in such a manner as to be rotatable on a sensor shaft 12 which is positioned coaxially with the connecting shaft, so that an angle of rotation of the arm relative to the boom can be transmitted to the sensor 11 by a rotary lever 14 and an L-shaped interlocking bar 17. A bent portion 14a and a notch 16 are provided at leading end of the rotary lever 14; a leading end portion 17a of the interlocking bar 17 is engaged with the notch 16 in the state of enabling rotation integral with the rotary lever 14 and enabling relative displacement in the length direction of the lever and the axial direction of the sensor; and a base end portion 17b thereof is mounted on a bar mounting bracket 21 of a guard member 19, which is fixed to the arm, in the state of making a position variable in a direction almost orthogonal to length direction of the lever and almost parallel to a tangent line of the sensor 11. COPYRIGHT: (C)2008,JPO&INPIT
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