Abstract: An upper decoration mechanism and a sewing machine without requiring an operation of detaching the upper decoration mechanism from the sewing machine without reducing workability even when performing a double chain stitch not using a decoration thread. The upper decoration mechanism provided on a sewing machine includes an expansion retraction mechanism configured to switch a spreader between an expanded state where the spreader cooperates with needles for performing an upper decoration sewing and a retracted state where the spreader is separated from the needles.

Abstract: Provided with a thread standing device capable holding a thread with excellent workability and a sewing machine provided with the thread standing device. A thread standing device includes: a spool pin around which a thread reel is inserted; a thread hooking base on which a thread wound around the thread reels is hooked; and a thread holding slider which is slidable with respect to the thread hooking base, the thread holding slider being movable between a first position for covering a thread hooking portion of the thread hooking base and a second position for exposing the thread hooking portion, the thread being hooked on the thread hooking portion, wherein the thread hooked on the thread hooking portion is held when the thread holding slider is slid to the first position.

Abstract: An upper decoration mechanism and a sewing machine without requiring an operation of detaching the upper decoration mechanism from the sewing machine without reducing workability even when performing a double chain stitch not using a decoration thread. The upper decoration mechanism provided on a sewing machine includes an expansion retraction mechanism configured to switch a spreader between an expanded state where the spreader cooperates with needles for performing an upper decoration sewing and a retracted state where the spreader is separated from the needles.

Abstract: A waste catch plate for sewing machine held between a sewing machine and a table, and catching wastes produced by a sewing work by the sewing machine, and the waste catch plate includes a plate main body in a tabular shape. The plate main body includes a placement plane provided in a partial region of the plate main body, and on which the sewing machine is to be placed, and an opening provided in a remaining region of the plate main body continuous and adjacent to the partial region, and to which a bag for collecting the wastes is attached. Provided on a back surface of the region of the plate main body where the placement plane is provided is a thin leg spreading on the back surface so as to cover a region surrounded by multiple legs of the sewing machine being placed on the placement plane.