Disclosed is a guiding apparatus for use with a machine to facilitate performing an action along a self-guided path on a substrate. The guiding apparatus may include a support member configured to be attached to at least a portion of the machine. Further, the guiding apparatus may include one or more of lighting units, optical sensors, controllers, and user interface components, mounted on the support member, configured to identify an object, obtain position of the object on a substrate and perform an action along a self-guided path in association with that object on the substrate.

A feed-dog stabilizing mechanism for a sewing machine essentially includes a support member and a drive source. The support member is disposed below a feed dog and driven to move by the drive source, so that the support member can push against the feed dog, and as a result, the height at which the fabric is bitten by the feed dog can be maintained during the course of fabric feeding to maintain the optimum feeding efficiency.

Disclosed is a guiding apparatus for use with a machine to facilitate performing an action along a self-guided path on a substrate. The guiding apparatus may include a support member configured to be attached to at least a portion of the machine. Further, the guiding apparatus may include one or more of lighting units, optical sensors, controllers, and user interface components, mounted on the support member, configured to identify an object, obtain position of the object on a substrate and perform an action along a self-guided path in association with that object on the substrate.

Disclosed is a guiding apparatus for use with a machine to facilitate performing an action along a self-guided path on a substrate. The guiding apparatus may include a support member configured to be attached to at least a portion of the machine. Further, the guiding apparatus may include one or more of lighting units, optical sensors, controllers, and user interface components, mounted on the support member, configured to identify an object, obtain position of the object on a substrate and perform an action along a self-guided path in association with that object on the substrate.

A sewing machine, in which a presser foot and a throat plate are detachable, includes a feed dog bracket, a feeding dog and a mounting portion. The feed dog bracket is driven according to a transfer direction of a fabric. The feeding dog transfers the fabric on the throat plate. The mounting portion detachably mounts the feeding dog on the feed dog bracket. The feeding dog includes a cam portion which is mounted on the mounting portion. The cam portion includes first, second and third cam surfaces. The first cam surface has a surface-contact with a first receiving surface of the mounting portion. The second cam surface has a line-contact with an end portion of a second receiving surface of the mounting portion. The third cam surface is pressed by a pressing member of the mounting portion.

A sewing machine includes a lower shaft, a feed dog, a feed bracket, a first shaft, a first arm, a second shaft, a second arm, an engagement receiving portion, an adjustment member, and an urging member. The first arm is configured to support the feed bracket to be swingable around the first shaft. The second shaft is fixed to the first arm and extending in a shaft direction. The engagement receiving portion is configured to engage with the second arm to be movable with respect to the second arm. The adjustment member is configured to swing the first arm around the first shaft and to swing the feed dog supported by the feed bracket in both directions along a transport direction. The urging member is configured to cause an urging force in an action direction along the shaft direction to act on the second arm.

A sewing machine includes a lower shaft, a feed dog, a feed bracket, a first shaft, a first arm, a second shaft, a second arm, an engagement receiving portion, an adjustment member, and an urging member. The first arm is configured to support the feed bracket to be swingable around the first shaft. The second shaft is fixed to the first arm and extending in a shaft direction. The engagement receiving portion is configured to engage with the second arm to be movable with respect to the second arm. The adjustment member is configured to swing the first arm around the first shaft and to swing the feed dog supported by the feed bracket in both directions along a transport direction. The urging member is configured to cause an urging force in an action direction along the shaft direction to act on the second arm.

Disclosed is a guiding apparatus for use with a machine to facilitate performing an action along a self-guided path on a substrate. The guiding apparatus may include a support member configured to be attached to at least a portion of the machine. Further, the guiding apparatus may include one or more of lighting units, optical sensors, controllers, and user interface components, mounted on the support member, configured to identify an object, obtain position of the object on a substrate and perform an action along a self-guided path in association with that object on the substrate.

Disclosed is a guiding apparatus for use with a machine to facilitate performing an action along a self-guided path on a substrate. The guiding apparatus may include a support member configured to be attached to at least a portion of the machine. Further, the guiding apparatus may include one or more of lighting units, optical sensors, controllers, and user interface components, mounted on the support member, configured to identify an object, obtain position of the object on a substrate and perform an action along a self-guided path in association with that object on the substrate.

A sewing control device includes in a sewing machine having upper feed function a control device which controls feed of an object to be sewn. A lower feed amount setting motor sets a feed amount of a lower feed dog and an upper feed amount change motor changes a feed amount of an upper feed dog. A feed execution range, in which the feed of the object to be sewn is executed by an appropriate feed amount while the object to be sewn is sandwiched between the lower feed dog and the upper feed dog, and a feed non-execution range, in which the feed of the object to be sewn is not executed in a state in which the feed dogs do not act on the object to be sewn, are present. The feed amount of the upper feed dog can be changed only in the feed non-execution range during sewing.