Preparing for the construction equipment which possesses the job

摘要

PROBLEM TO BE SOLVED: To reduce a shear force which is generated in accordance with an external force given to a cover, namely, a shear force given to a bolt fastening the cover to a bossed portion of a rod end in a hydraulic cylinder.;SOLUTION: A cover 10 is fastened near its distal end portion 10a by a bolt 13 which is screwed to an internal thread part 12a of a mounting part 12 provided on an outer circumferential surface of a bossed portion 11 formed in a rod end of a packet cylinder 7. The cover 10 includes protrusions 15 which are formed while protruding integrally to surround the mount part 12 near its end portion at a side of the cover 10 and can be abutted to the mount part 12 in accordance with movement of the cover 10 caused by an external force given to the cover 10. For example, the mount part 12 is formed columnar and the protrusions 15 to accommodate the columnar mount part 12 therein are doughnut-shaped.;COPYRIGHT: (C)2013,JPO&INPIT