Abstract:
The invention relates to a method for manufacturing a liner, in particular for the cabinet of a refrigerator, allowing to leave out a deep thermoforming step, comprising the steps of: extruding a sheet (2), trimming said sheet (2), folding said sheet (2) and joining adjacent edges.
Abstract:
A process for manufacturing a honeycomb structured panel and a so obtained honeycomb structured panel is described. The honeycomb structured panel (8) is composed of a first central body (9) and an external body (10), applied on to the entire longitudinal and transversal surface of the central body (9), and formed by two flat component elements (11, 12) having equal surface, overlapped and joined to each other, of which the first central component element (11) is formed by at least a flat layer of wooden material such as for example chipboard, MDF, plywood or the like, and the second covering component element (12) is constituted by at least a flat layer having the width equal to the previous component element (11), which may be obtained with different foldable materials such as for example paper, leather, wood, metal etc.. with protective film.
Abstract:
A corner bead for wallboard applications comprising a polymeric core having a bonding surface for bonding to wallboard wherein the bonding surface has applied thereto a water activated adhesive which is bonded to the polymeric core by a curable adhesive having embedded therein fibers which are also embedded in the water activated adhesive.
Abstract:
A strap having increased column stiffness includes a leading edge and a trailing edge forming a length of the strap, a first outer edge and second outer edge defining a width of the strap, and a first side and a second side defining a thickness of the strap. A crush region is formed in the first or second side, between and generally parallel to the first and second outer edges. The crush region is defined by a thickness that is less than the thickness of the strap adjacent to the crush region. The crush region forms a line along which a bend may be formed in the strap. The bend increases the column stiffness of the strap at least about 67 percent over that of a comparable flat strap. The bend defines an acute angle and an obtuse angle in the strap as viewed in cross-section.
Abstract:
A blank for a box made from an expandable material which is initially moulded generally flat in which, where folds forming hinges are to be made to enable the formation of the box, the tooling which defines the shape of the blank is such as to provide a thickness of the expanded material less than the thickness of the major part of the blank where the folds are to be made having defined edges generally in the direction of each fold the fold and subsequently applying pressure along the area where folds are to be permitted to reduce the thickness of the this blank without removing material therefrom thereby providing hinges to permit formation of the box. The invention also provides a method of making the blank and a box made from the blank.
Abstract:
The present invention provides a substantially flat sheet material which is arranged to fold to form a corner module(200). The sheet comprises a face (101) and an underside(103) and at leastfour convergent fold lines (L 1, L 2, L 3, L 4) defining four stiff sections in the sheet (102,106,108,110). Three of the fold lines (L 1, L 2, L 3) are arranged 5 to allow the sheet to fold so as to reduce the angle between the faces of adjacent sections(102,106,108,110), and one of the fold lines (L 4) is arranged to allow the sheet to fold so as to increase the angle between the faces of adjacent sections. To be accompanied, when published, by Figure 3.
Abstract:
The invention relates to a method for manufacturing and reinforcing a corner in an object made from a sandwich structure, comprising a thermoplastic core layer (18), which is arranged between two cover layers (16), at least one of which is a plastic cover layer, which method comprises the steps of : Producing an object comprising a corner between two object parts; positioning a thermoplastic core part (24) and an additional fibre-reinforced thermoplastic layer (26) in the corner, which thermoplastic core part has a shape adapted to the corner, in such a manner thta the additional fibre-reinforced thermoplastic layer (26) substantially covers the exposed surface of the core part (24); and connecting a cover layer (16) of the sandwich structure to the additional fibre-reinforced thermoplastic layer (26).
Abstract:
The invention initially provides a method of working a sheet of a solid foamed plastics material including applying to a part of the material to which a fold is to be provided pressure and heat to deform the material to provide a thinned area fold line about which a deforming force can cause the material on each side of the fold line to hinge. By the use of this method there can be provided containers of a solid foamed plastics material which can be delivered flat, can be made into boxes and which, after use can again be flattened for reuse or recycling. The containers can be made to be liquid impervious and can be treated to provide an outer surface which can be printed.
Abstract:
A process for forming a container blank with flexible fold lines from polylactic acid sheet material. In the process, a sheet of polylactic acid material suitable for use as a container blank is placed between a forming tool and a substantially flat surface. The temperature of the forming tool is maintained at a point between the softening temperature and the melting temperature of the polylactic acid sheet. Then, a high frequency electric field is created between the forming tool and the flat surface so as to heat a portion of the polylactic acid sheet sandwiched therebetween, while pressing the forming tool into the sheet to a depth of at least 25% of the thickness of the sheet and forming bulges in the sheet adjacent to opposite sides of the tool. Next, the polylactic acid sheet is allowed to cool while maintaining the same in a substantially flat condition.
Abstract:
A process for designing and manufacturing precision-folded, high strength, fatigue-resistant structures and a sheet therefore. The techniques include methods for precision bending of a sheet of material (41, 241, 341, 441, 541) along a bend line (45, 245, 345, 445, 543) and a sheet of material formed with bending strap-defining structures, such as slits or grooves (43, 243, 343, 443, 542), are disclosed. Methods include steps of designing and then separately forming longitudinally extending slits or grooves (43, 243, 343, 443, 542) through the sheet of material in axially spaced relation to produce precise bending of the sheet (41, 241, 341, 441, 541) when bent along the bend line (45, 245, 345, 445, 543).