JIGSAW, ASSEMBLING STATION FOR SAW BLADE GUIDE ROLLER UNIT OF THIS JIGSAW, MAINTAINING AND RUNNING-IN STATION, AND REPLACING METHOD FOR THE SAW BLADE GUIDE ROLLER UNIT

摘要

PROBLEM TO BE SOLVED: To shorten a jigsaw stop time for replacing a jigsaw guide roller, by arranging movable and fixed bearings in a saw blade guide roller, forming a saw blade guide roller unit by these bearings, and constituting the unit removably as a whole from a saw head. SOLUTION: The guide roller 1 of a wire-rod-like saw blade is pivotally mounted rotatably on a saw head 4 between movable and fixed bearings 2 and 3, and these bearings 2 and 3 are fitted onto a supporting spindle 5, also form a saw blade roller unit 6 together with the saw blade guide roller 1. The unit 6 is moved in an axial direction to a releasing position by a linear slide mechanism 19 equipped with a spindle transmission gear 18, to be made separable into a half part 20 remaining in the saw head 4, and a half part 21 remaining while connected to the unit 6.