MECHANISM FOR SLIDING ENGAGEMENT OF ROLLER WITH GROOVED PART, HOPPER OPENING/CLOSING DEVICE HAVING THE MECHANISM AND COMBINATION WEIGHING DEVICE HAVING THE MECHANISM AT HOPPER OPENING/CLOSING DEVICE

摘要

PROBLEM TO BE SOLVED: To avoid twisting during sliding although clearance between a roller rotatably provided on a gate at the outlet port of a hopper and a guide groove provided in an operating lever driven and rocked is set at zero, in a hopper opening/closing device which opens and closes the outlet port by engaging the roller slidably in the guide groove to convert the rocking movement of the operating lever into the rocking movement of the gate. ;SOLUTION: Two rollers 109, 110 are provide in such a way as to be coaxial 101 with the ever member 24a of a gate, and in an operating lever 44, two arm parts 111, 112 are formed in steps in the vertical and horizontal directions to form the space between the two arms 111, 112 into a guide groove 44a. With each roller 109, 110 in contact with only one of the arm parts 111, 112, an entire roller 28 is slidably engaged in the guide groove 44a.;COPYRIGHT: (C)1998,JPO