A sewing machine includes a bed, a projector configured to project an image toward the bed onto at least a guarantee area, a storage medium, and a controller. The controller controls the projector to project the image toward the bed onto a maximum area. The controller determines, based on a position of the image projected onto the maximum area, first world coordinates representing, in a real space coordinate system, a rectangular area contained in the maximum area. The controller determines, based on the first world coordinates, second world coordinates representing, in the real space coordinate system, a target area containing at least the guarantee area. The controller stores the second world coordinates in the storage medium.

A sewing machine determines a pattern from multiple patterns, as a first pattern. The sewing machine generates a projection image including a first image representing a sewing image of the first pattern in a sewing expected size thereof. The sewing machine projects the generated projection image onto a projection area. The sewing machine sews the first pattern on a workpiece in the sewing expected size based on pattern data for the first pattern.

A sewing machine determines a pattern from multiple patterns, as a first pattern. The sewing machine generates a projection image including a first image representing a sewing image of the first pattern in a sewing expected size thereof. The sewing machine projects the generated projection image onto a projection area. The sewing machine sews the first pattern on a workpiece in the sewing expected size based on pattern data for the first pattern.

An aspect of the present invention is a sewing machine which includes a holding member configured to be movable while holding a workpiece within a predetermined plane including a sewing position immediately below a needle, an actuator configured to move the holding member, an imaging device configured to be capable of capturing the workpiece, a sewing data acquisition unit configured to acquire sewing data including a sewing order to be referred to in sewing processing, and an imaging position setting unit configured to output a control signal to the actuator so that a plurality of feature patterns of the workpiece are sequentially disposed in an imaging region of the imaging device based upon the sewing data.

Provided with a cloth movement detection device and a sewing machine capable of precisely detecting a movement of a cloth. A cloth movement detection device includes: a light detection portion configured to detect a light for detecting a movement of a cloth; a body portion configured to be detachably attached to a presser bar of a sewing machine, the light detection portion being installed in the body portion; and a pressing support portion configured to be detachably attached to the body portion, a cloth pressing portion capable of contacting with the cloth being formed on the pressing support portion, wherein a window portion capable of transmitting the light is provided on a bottom surface of the body portion, and the cloth pressing portion is located lower than the bottom surface of the body portion in a state that the pressing support portion is attached to the body portion.

Provided with a cloth movement detection device and a sewing machine capable of precisely detecting a movement of a cloth. A cloth movement detection device includes: a light detection portion configured to detect a light for detecting a movement of a cloth; a body portion configured to be detachably attached to a presser bar of a sewing machine, the light detection portion being installed in the body portion; and a pressing support portion configured to be detachably attached to the body portion, a cloth pressing portion capable of contacting with the cloth being formed on the pressing support portion, wherein a window portion capable of transmitting the light is provided on a bottom surface of the body portion, and the cloth pressing portion is located lower than the bottom surface of the body portion in a state that the pressing support portion is attached to the body portion.

According to an embodiment, a mirror is attached to the gooseneck with a mounting bracket. The gooseneck attaches to a second mounting bracket that is affixed to the sewing machine. According to a further embodiment, optional magnets can be affixed to the back of the mirror, thus allowing the user to keep pins off the work surface (by attaching the pins to the back of the mirror).

According to an embodiment, a mirror is attached to the gooseneck with a mounting bracket. The gooseneck attaches to a second mounting bracket that is affixed to the sewing machine. According to a further embodiment, optional magnets can be affixed to the back of the mirror, thus allowing the user to keep pins off the work surface (by attaching the pins to the back of the mirror).

Apparatuses including support and accessory arms for positioning a sewing machine accessory are disclosed. According to an aspect, an apparatus for positioning a sewing machine accessory includes a support arm. The support arm is configured for attachment to a sewing machine and comprises a first coupling component. The first coupling component comprises a first magnetic component. The apparatus also includes an accessory arm configured for attachment of a sewing machine accessory. The accessory arm comprises a second coupling component. The first coupling component and the second coupling component are configured for attachment together. The second coupling component comprises a second magnetic component that is attracted to the first magnetic component for urging the second coupling component towards the first coupling component when the first and second coupling components are attached together. The first and second coupling components are configured to position the sewing machine accessory to a user-determined position.

Apparatuses including support and accessory arms for positioning a sewing machine accessory are disclosed. According to an aspect, an apparatus for positioning a sewing machine accessory includes a support arm. The support arm is configured for attachment to a sewing machine and comprises a first coupling component. The first coupling component comprises a first magnetic component. The apparatus also includes an accessory arm configured for attachment of a sewing machine accessory. The accessory arm comprises a second coupling component. The first coupling component and the second coupling component are configured for attachment together. The second coupling component comprises a second magnetic component that is attracted to the first magnetic component for urging the second coupling component towards the first coupling component when the first and second coupling components are attached together. The first and second coupling components are configured to position the sewing machine accessory to a user-determined position.