Abstract: A sewing machine in which a base configured to support a throat plate, a shuttle or a looper, and an input shaft for a stitching operation to the shuttle or the looper with respect to a bed portion of a frame is supported to be movable along a direction of approaching or separating from a sewing needle is provided. The sewing machine includes a connecting member which changes to any one of a state in which the input shaft and a transmission shaft are aligned in the same straight line to be in a torque transmission state and a state in which the input shaft moves together with the base with respect to the transmission shaft, between the input shaft on the base side and the transmission shaft which transmits power to the input shaft.

Abstract: A sewing machine in which a base configured to support a throat plate, a shuttle or a looper, and an input shaft for a stitching operation to the shuttle or the looper with respect to a bed portion of a frame is supported to be movable along a direction of approaching or separating from a sewing needle is provided. The sewing machine includes a connecting member which changes to any one of a state in which the input shaft and a transmission shaft are aligned in the same straight line to be in a torque transmission state and a state in which the input shaft moves together with the base with respect to the transmission shaft, between the input shaft on the base side and the transmission shaft which transmits power to the input shaft.