Provided is an automatic mattress sterilization apparatus configured to sterilize a mattress, including a frame extending in one direction and on which the mattress is placed, a sterilization part coupled to an upper portion of the frame and having an inner space through which the mattress passes, and a moving part provided in the frame and configured to move the mattress placed on the frame, and the mattress is moved from one side of the sterilization part to the other side of the sterilization part via the inner space of the sterilization part by the moving part.

Provided is an automatic mattress sterilization apparatus configured to sterilize a mattress, including a frame extending in one direction and on which the mattress is placed, a sterilization part coupled to an upper portion of the frame and having an inner space through which the mattress passes, and a moving part provided in the frame and configured to move the mattress placed on the frame, and the mattress is moved from one side of the sterilization part to the other side of the sterilization part via the inner space of the sterilization part by the moving part.

Devices and related methods for, among other things, maintaining the warp/weft threads of a backing layer of material (e.g., fabric) in a fixed orientation while being sewed are described and provided.

In a holding frame, a frame forming portion includes a first holding surface and the second holding surface extending in different directions crossing an area surface of an inner area defined by the frame forming portion. In a state where a holder is magnetically attached to the frame forming portion, the first holding surface and the second holding surface respectively face inner surfaces of a first holding portion and a second holding portion of the holder. The first holding surface includes a first portion connected to a first connecting portion, and a first end located opposite from the first portion. The second holding surface includes a second portion connected to the first connecting portion, and a second end located opposite from the second portion. A distance between the first end and the second end is greater than a distance between the first portion and the second portion.

In a holding frame, a frame forming portion includes a first holding surface and the second holding surface extending in different directions crossing an area surface of an inner area defined by the frame forming portion. In a state where a holder is magnetically attached to the frame forming portion, the first holding surface and the second holding surface respectively face inner surfaces of a first holding portion and a second holding portion of the holder. The first holding surface includes a first portion connected to a first connecting portion, and a first end located opposite from the first portion. The second holding surface includes a second portion connected to the first connecting portion, and a second end located opposite from the second portion. A distance between the first end and the second end is greater than a distance between the first portion and the second portion.

A software activation system includes a sewing machine and at least one server connected via a network. The sewing machine acquires an authentication code corresponding to an activation target software that is at least one of a program and data not activated on the sewing machine, and transmits, to an authentication server included in the at least one server, an authentication request including the acquired authentication code. The server acquires an authentication key on the basis of the authentication request, when the authentication request is received by the first receiver; and transmits the acquired authentication key to the sewing machine. The sewing machine also receives the authentication key from the authentication server, determines whether the received authentication key satisfies a predetermined authentication condition, and activates the activation target software on the sewing machine when it is determined that the authentication key satisfies the predetermined condition.

A software activation system includes a sewing machine and at least one server connected via a network. The sewing machine acquires an authentication code corresponding to an activation target software that is at least one of a program and data not activated on the sewing machine, and transmits, to an authentication server included in the at least one server, an authentication request including the acquired authentication code. The server acquires an authentication key on the basis of the authentication request, when the authentication request is received by the first receiver; and transmits the acquired authentication key to the sewing machine. The sewing machine also receives the authentication key from the authentication server, determines whether the received authentication key satisfies a predetermined authentication condition, and activates the activation target software on the sewing machine when it is determined that the authentication key satisfies the predetermined condition.

An embroidery frame driving device includes: a base plate firmly fixed to an X-Y driving unit of the embroidery frame driving device; a fixation arm provided on the base plate; an attachment/detachment cam; a removing link; a coupling link; and an embroidery frame. The embroidery frame is slid against the base plate to rotate the attachment/detachment cam and the fixation arm through pressing of a pressing part of a fixation part to press and fix one end of the fixation arm to a fixation groove of the fixation part in attachment of the embroidery frame. The removing link is operated to rotate the coupling link and the attachment/detachment cam to rotate the fixation arm and release pressing and fixation of the fixation groove of the fixation part by the one end of the fixation arm in detachment of the embroidery frame.

An embroidery frame driving device includes: a base plate firmly fixed to an X-Y driving unit of the embroidery frame driving device; a fixation arm provided on the base plate; an attachment/detachment cam; a removing link; a coupling link; and an embroidery frame. The embroidery frame is slid against the base plate to rotate the attachment/detachment cam and the fixation arm through pressing of a pressing part of a fixation part to press and fix one end of the fixation arm to a fixation groove of the fixation part in attachment of the embroidery frame. The removing link is operated to rotate the coupling link and the attachment/detachment cam to rotate the fixation arm and release pressing and fixation of the fixation groove of the fixation part by the one end of the fixation arm in detachment of the embroidery frame.

Provided are: a sewing device provided with a sewing mechanism which performs sewing on a work to be sewn using a sewing-machine needle, while holding the work to be sewn in a state of being shaped in a predetermined shape on a plurality of seating portions arranged in a sewing direction; and a sewing method. When the seating portions are withdrawn from the work to be sewn so as to avoid interference between the sewing mechanism and the seating portions, a guiding mechanism enables movement in a first withdrawing direction for avoiding a first undercut portion of the work to be sewn, and movement in a second withdrawing direction for avoiding a second undercut portion of the work to be sewn.