Abstract: The present invention relates to a safety apparatus for a steer-by-wire. The present invention can ensure the safety of a steer-by-wire using a simple and compact structure and achieve a manufacturing-cost reduction effect.

Abstract: A sewing machine having a locking pin clutch mechanism allowing the user to selectively engage the flywheel or balance wheel for transmitting power to the main drive shaft. The locking pin may also have a line of weakness to function as a shear pin. The locking pin may be removable from the flywheel, and the flywheel retaining locking knob may include an aperture for storing the locking pin. In alternate embodiments, the locking pin may be held captive in the flywheel when the clutch is disengaged.

Abstract: A sewing machine having a locking pin clutch mechanism allowing the user to selectively engage the flywheel or balance wheel for transmitting power to the main drive shaft. The locking pin may also have a line of weakness to function as a shear pin. The locking pin may be removable from the flywheel, and the flywheel retaining locking knob may include an aperture for storing the locking pin.

Abstract: A sewing machine with a balance wheel (1), which is detachably fastened on the arm shaft (15). The balance wheel (1) is secured against rotation by the cooperation of a carrier pin (17) transversely protruding from the arm shaft (15) with two axially extending recesses (7) in the balance wheel hub (1), which said recesses are open at one end. The wheel is secured axially by the cooperation of an elastic finger (9), which is fastened to the balance wheel (1) and has a mounting hole (12), with the carrier pin (17).

Abstract: A sewing machine has at least one sewing head having a presser foot which is vertically reciprocally moved by a predetermined stroke in synchronism with a vertical movement of a needle bar. After completion of the sewing operation, an upper thread is cut in a position spaced by a suitable distance from a sewing needle mounted on the needle bar. A refuge mechanism is operable to move the presser foot to a refuge position for giving refuge to a part of the upper thread on the side of the sewing needle cut after completion of the sewing operation. The refuge position is out of the predetermined stroke.

Abstract: A sewing machine has a retractable handwheel which is always biased toward the outside of the frame by a resilient member. When pushed into the frame against the biasing action of the resilient member, the handwheel is locked in a retracted position in the frame by an actuating member. The handwheel is released in conjunction with operation for opening a cover covering the spool chamber of the sewing machine to allow the handwheel to be projected outwardly of the frame, so that the manual rotation of the handwheel may be effected.

Abstract: A handwheel is assembled to a sewing machine arm shaft with a conical screw in association with a torque transmitting handwheel clip-on member having wings thereon which are disposed in line contact with the screw, and which include planar surfaces that are caused to engage planar surfaces on radially extending ribs of the handwheel.