A folding device for a flat blank has a plurality of bearing blocks arranged in a row in a first direction, the mutual distance of which can be changed by a drive device and each of which has a support surface for the blank by a holding device. A plurality of folding blades are arranged at a distance next to one another in the first direction, at least one of the folding blades being arranged between immediately adjacent bearing blocks. The folding blades can be adjusted by changing a mutual distance with an additional movement component perpendicular to the blank. Adjacent bearing blocks are coupled in terms of movement via a linkage. The folding blade arranged between adjacent bearing blocks is connected to the linkage so a change in distance between the bearing blocks can be transferred by the linkage to the folding blade for the adjustment thereof.

This application is related to a greeting card that is conducive to automated printing, as well as methods and systems for printing on the greeting card. For example, the greeting card can include a three-dimensional (3D) card element that is containable, when the card is being printed, between a first panel of the greeting card and a protective panel of the greeting card. In addition, the greeting card can include a second panel for receiving a printed graphic (e.g., text, letters, numbers, pictures, symbols, etc.).

A method of folding a sheet of paper. The method includes: folding the sheet of paper into an accordion shape comprising a plurality of pleats and collapsing the pleats to form a strip; folding the strip about in half to form a first folded strip; folding the first folded strip about a point that is about two-thirds a length of the first folded strip to form a second folded strip comprising an exposed portion that is about a third the length of the first folded strip; and folding the second folded strip about in half to form a third folded strip.

A method of folding a sheet of paper. The method includes: folding the sheet of paper into an accordion shape comprising a plurality of pleats and collapsing the pleats to form a strip; folding the strip about in half to form a first folded strip; folding the first folded strip about a point that is about two-thirds a length of the first folded strip to form a second folded strip comprising an exposed portion that is about a third the length of the first folded strip; and folding the second folded strip about in half to form a third folded strip.

A structural element is formed of at least one foldable blank. The structural element has side walls, at least one partition that extends between at least two of the side walls and at least one pair of flaps, each of the flaps in the pair of flaps being formed by an edge part of the foldable blank bent inwards the structural element. The flaps in each pair are adjacent to each other and coupled with the partition by notches. The partition is located in a plane which is not parallel to planes of the sidewalls.

A structural element is formed of at least one foldable blank. The structural element has side walls, at least one partition that extends between at least two of the side walls and at least one pair of flaps, each of the flaps in the pair of flaps being formed by an edge part of the foldable blank bent inwards the structural element. The flaps in each pair are adjacent to each other and coupled with the partition by notches. The partition is located in a plane which is not parallel to planes of the sidewalls.

The application provides a blank for forming a handheld tool. The blank includes an elongated sheet that includes a top surface and a bottom surface, a first longitudinal end and a second longitudinal end, a first side end and a second side end, and a circumferential edge. The circumferential edge includes a rear edge, a front edge, a first side edge, and a second side edge. The elongated sheet also includes at least one upward bending line extending, and a second upward bending segment, and a connecting segment. The elongated sheet also includes a first downward bending line and a second downward bending line.

The application provides a blank for forming a handheld tool. The blank includes an elongated sheet that includes a top surface and a bottom surface, a first longitudinal end and a second longitudinal end, a first side end and a second side end, and a circumferential edge. The circumferential edge includes a rear edge, a front edge, a first side edge, and a second side edge. The elongated sheet also includes at least one upward bending line extending, and a second upward bending segment, and a connecting segment. The elongated sheet also includes a first downward bending line and a second downward bending line.

The present invention provides paper glasses and a method for manufacturing the same including a lens frame connected in parallel to both sides of a central bridge to fix a lens; glasses temples which are extended integrally from both sides of the lens frame and bent at an angle perpendicular to the lens frame to wear the lens frame on the face; and a support piece of which one end is fixed to the lens frame and the other end is fixed to the front end of the glasses temples to ensure a support force of the glasses temples and maintain a predetermined angle of the glasses temples.

The present invention provides paper glasses and a method for manufacturing the same including a lens frame connected in parallel to both sides of a central bridge to fix a lens; glasses temples which are extended integrally from both sides of the lens frame and bent at an angle perpendicular to the lens frame to wear the lens frame on the face; and a support piece of which one end is fixed to the lens frame and the other end is fixed to the front end of the glasses temples to ensure a support force of the glasses temples and maintain a predetermined angle of the glasses temples.