A support structure includes: a support frame as a shaft support member for supporting two shafts; a bush provided on each of the two shafts in a slidable manner; a cover support member connected to the multiple bushes and configured to support the cover; a first connection member for connecting one end of each of the two shafts to the support frame in a manner that the relative position between the shaft and the support frame will not change; and a second connection member for connecting the other end of each of the two shafts to the support frame in a manner that the relative position between the shaft and the support frame can change.

A machine tool includes a frame with two opposite frame sections, a number of leg elements arranged on the frame, and a first carriage having a first linear axis. The first carriage is guided on the two opposite sections of the frame and is displaceable in a first direction. A second carriage of a second linear axis is guided on the first carriage and is displaceable in a second direction A tower element has a third linear axis, which is retained on the second carriage. A machining element is retained on the tower element and is displaceable in a third direction, and a tool spindle is arranged on the machining element for receiving a tool.

A method for determining and/or monitoring the state of a protective cover, includes the steps of a) obtaining a first state value of at least one characteristic physical, mechanical and/or chemical property of the protective cover at a first point in time; and b) obtaining a second state value of the at least one characteristic property of the protective cover at a second point in time, which is to subsequent to the first point in time; and c) comparing the obtained state values; and d) determining the state of the protective cover based on the comparison performed in step c).

A support structure includes: a support frame as a shaft support member for supporting two shafts; a bush provided on each of the two shafts in a slidable manner; a cover support member connected to the multiple bushes and configured to support the cover; a first connection member for connecting one end of each of the two shafts to the support frame in a manner that the relative position between the shaft and the support frame will not change; and a second connection member for connecting the other end of each of the two shafts to the support frame in a manner that the relative position between the shaft and the support frame can change.

A support structure includes: at least two shafts extending in a first direction in which the cover expands and contracts, and arranged inside the cover so as to be spaced from each other in a second direction that intersects the first direction; a bush provided on each of the at least two shafts so as to be slidable along the shafts; and a cover support member. The cover support member includes a main part supporting the cover, a first connection part connecting the main part and the bush so as not to change the relative position between the bush and the main part, and a second connection part connecting the main part and the bush in a manner that the relative position between the bush and the main part can be changed.

The invention relates to a protective cover (01) comprising at least one protective cover element (02), which is variable in length, and comprising a frame element (04), said frame element (04) being capable of being connected to the protective cover element (02), said protective cover element (02)comprising at least one holding means (03) and said frame element (04) comprising at least one fastening means (06) in the area of a first longitudinal edge (05a), the connection between the holding means (03) and the fastening means (06) being a detachable, in particular force-fitting and/or interlocking, snap connection.

A surgical guide production apparatus and accessories are provided to simplify the process of using the production apparatus within the surgical environment. A cutting attachment is provided for use on a surgical guide production apparatus. The cutting attachment comprises a cutting element, a connector for connecting the cutting element to a drive mechanism of the surgical guide production apparatus so that the cutting element can be driven by the drive mechanism to modify an impression of a surgical site to produce a surgical guide, and a protective barrier. The protective barrier is configured to be positioned around the cutting element to surround a cutting area to help prevent contaminants from entering or leaving the cutting area during modification of the impression.

An adjustable safety guard includes first, second and third portions which are operable to extend from a collapsed position where it can be easily stored, to an expanded position to where it operates as a functioning guard to protect a machine operator. One of the sections of the guard is expandable between an infinite number of positions which provides a flexible system that can be used in many different manufacturing applications.

A protective cover having at least one supporting profile and having at least one length-adjustable protective cover element, the supporting profile having a first connecting means for detachably connecting the protective cover element, and the protective cover being movable in a direction of movement within a predetermined range of movement, which is defined between a first position of the protective cover and a second position of the protective cover, the supporting profile being rotatably mounted around an axis in such a manner that the height of the cross section of the supporting profile is disposed essentially perpendicular to the direction of movement in the first position and parallel to the direction of movement in the second position.

A method for determining and/or monitoring the state of a protective cover, includes the steps of a) obtaining a first state value of at least one characteristic physical, mechanical and/or chemical property of the protective cover at a first point in time; and b) obtaining a second state value of the at least one characteristic property of the protective cover at a second point in time, which is to subsequent to the first point in time; and c) comparing the obtained state values; and d) determining the state of the protective cover based on the comparison performed in step c).