| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To reduce the size and cost with a simple construction, in an operating oil tank structure of a work machine. <P>SOLUTION: This operating oil tank structure has an operating oil tank 1 arranged in the rear to an extension line of a support shaft of a boom 17 rotatably journaled in the vertical direction in front of the work machine, a tank upper surface 2 composed of a first upper surface part 2b positioned on its upper end and a second upper surface part 2a arranged downward via a step height to the first upper surface part 2b, a pipe connecting port 3 fixed on a front face of the operating oil tank 1 under the extension line of the support shaft and connecting a return oil pipe of operating oil, an operating oil filter device 4 connected to the pipe connecting port 3 on the inside of the tank 1, fixing the upper end to the second upper surface part 2a and filtering the operating oil flowing in from the pipe connecting port 3, an inside inspecting opening hole 5 of the operating oil filter device 4 opened on a fixing surface with the operating oil filter device 4 in the second upper surface part 2a, and an opening cover 6 for openably-closably covering the opening hole 5. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
