Sheet material cutting unit and printing device

A sheet material cutting unit comprising:

• a stationary blade;
• a movable blade mounted to undergo reciprocal movement toward and away from the stationary blade for cutting a sheet material moving along a sheet material transfer path;
• a movable blade holder integrally connected to the movable blade for reciprocal movement therewith;
• a sheet material retaining structure that retains the sheet material on the sheet material transfer path during cutting of the sheet material, the sheet material retaining structure having a stationary sheet material holding portion and a movable sheet material holding portion disposed opposite to the stationary sheet material holding portion with the sheet material transfer path therebetween, the movable sheet material holding portion being mounted on the movable blade holder for reciprocal movement therewith;
• and
• a transmitting structure that transmits reciprocal movement of the movable blade to the movable sheet material holding portion to maintain the sheet material in a sandwiched state between the movable sheet material holding portion and the stationary sheet material holding portion during cutting of the sheet material, the transmitting structure having a notch portion formed in the movable blade holder, a biasing member disposed in the notch portion, and a protrusion of the movable sheet material holding portion extending into the notch portion and contacting the biasing member so that during movement of the movable blade toward the stationary cutting member, the movement of the movable blade is transmitted to the movable sheet material holding portion.

A sheet material cutting unit comprising:

• a stationary blade;
• a movable blade mounted to undergo reciprocal movement toward and away from the stationary blade for cutting a sheet material moving along a sheet material transfer path;
• first and second movable blade holders integrally connected to the movable blade for reciprocal movement therewith;
• a sheet material retaining structure that is connected to the first and second movable blade holders for reciprocal movement therewith and that retains the sheet material on the sheet material transfer path during cutting of the sheet material, the sheet material retaining structure having first and second stationary sheet material holding portions and first and second movable sheet material holding portions having end parts confronting the respective first and second stationary sheet material holding portions with the sheet material transfer path therebetween;
• and
• a transmitting structure that transmits reciprocal movement of the movable blade to the first and second movable sheet material holding portions to maintain the sheet material in a sandwiched state between the first and second movable sheet material holding portion and the first and second stationary sheet material holding portions during cutting of the sheet material, the transmitting structure having a pair of notch portions formed in the respective first and second movable blade holders, a pair of biasing members disposed in the respective notch portions, and a pair of protrusions of the respective first and second movable sheet material holding portions extending into the respective notch portions and contacting the respective biasing members so that during movement of the movable blade toward the stationary cutting member, the movement of the movable blade is transmitted to the first and second movable sheet material holding portions.