Patent ID: 6244321
Filing Date: 2001-06-12
Classification: B65H,Y10T

Abstract:
An automatic web material connecting apparatus comprising:a pair of blocks arranged so as to be able to move relatively and be pressed against each other in a direction to cross a feed path for a first web material and a feed path for a second web material;retaining means for retaining the first and second web materials on respective opposite faces of said pair of blocks;cutting means, associated with said pair of blocks, for cutting a desired one of the first and second web materials; anddriving means for relatively moving said pair of blocks, whereby the desired web material is cut by said cutting means while said pair of blocks are moving relative to each other;wherein said cutting means essentially consists of:a rotating body rockable between the feed paths for the first and second web materials on an upper-course side of said pair of blocks,first and second knives fixed individually to said pair of blocks,a single third knife fixed to said rotating body, andactuator means for rotating said rotating body between a first rotational position in which said third knife faces said first knife and a second rotational position in which said third knife faces said second knife,said third knife having a cutting edge which is directed to different radial directions as said rotating body rotates between the first and second rotational positions,wherein the desired web material is cut by said third knife and one of said first and second knives selected depending on the rotational position of said rotating body.