Patent ID: 9539839
Date: 2017-01-10
CPC Classifications: B41J,B65H

Claim:
1. A long sheet material holding device comprising: a holding shaft configured to hold a long sheet material in a roll shape; a pair of first locking groove trains arranged in parallel with each other along the axial direction of the holding shaft, the pair of first locking groove trains having a series of grooves respectively, each of the series of grooves being provided with slope surfaces sloped along the axial direction of the holding shaft and perpendicular surfaces perpendicular to the axial direction of the holding shaft, the slope surfaces and the perpendicular surfaces, in each of the series of grooves, being positioned opposite to each other relative to the grooves formed therebetween with respect to the axial direction of the holding shaft from a first end to a second end; a regulating member provided to be movable along the axial direction of the holding shaft, the regulating member being configured to regulate a position of the long sheet material held by the holding shaft; and a pair of locking members provided in the regulating member to match the pair of first locking groove trains, each of the locking members having a second locking groove train, the second locking groove train having a series of grooves, the series of grooves having surfaces to match the slope surfaces and the perpendicular surfaces of the grooves of the first locking groove train, the second locking groove trains being engaged with the first locking groove trains to fix the regulating member to the holding shaft.