Sewing machine

A sewing machine comprising an upper feed mechanism configured to cause an upper feed dog provided to an upper side of a needle plate to perform a feeding operation,

• wherein the upper feed mechanism comprises:
• a driving cam provided to an upper shaft such that they can be rotated as a single unit;
• a link mechanism configured to operate when receiving a transmission of a driving force of the driving cam;
• a transmission mechanism configured to transmit a driving force of the driving cam to the link mechanism so as to operate the link mechanism;
• an upper feed leg mounting the upper feed dog, and coupled to the link mechanism such that, when the link mechanism is operated, the upper feed dog is driven in an upper-lower direction;
• and
• a switching mechanism configured to switch the transmission mechanism between a transmission state in which the driving force of the driving cam is transmitted to the link mechanism and a non-transmission state in which the driving force of the driving cam is not transmitted to the link mechanism,
• and wherein the switching mechanism switches the transmission mechanism to the non-transmission state so as to suspend an upper-lower movement of the upper feed leg.