초록 ▼

A printing press racking board and corner angle support, both preferably formed via injection molding processes. The racking board is a generally flat member having stiffening ribs and stiffening rod inserts attached to the bottom surface so that the board can exhibit the required stiffness. Hand ho

A printing press racking board and corner angle support, both preferably formed via injection molding processes. The racking board is a generally flat member having stiffening ribs and stiffening rod inserts attached to the bottom surface so that the board can exhibit the required stiffness. Hand holds and finger holes are included to facilitate moving the racking board. The corner angle support has two members extending perpendicularly from each other. Each member has flanges which can support a racking board, and each member also includes stiffening ribs to increase stiffness. The racking board and supports are both lighter than the prior art, and yet both exhibit the required stiffness. Also, racking board and supports are less likely to splinter and fracture, and thus exhibit a longer user life.

대표청구항 ▼

1. An injection-molded printing press racking board comprising:a flat member comprising a top surface and a bottom surface, the flat member further comprising first, second, third, and fourth sides extending between the top and bottom surfaces, the first and second sides disposed between the third a

1. An injection-molded printing press racking board comprising:a flat member comprising a top surface and a bottom surface, the flat member further comprising first, second, third, and fourth sides extending between the top and bottom surfaces, the first and second sides disposed between the third and fourth sides; a plurality of ribs attached to the bottom surface, selective ones of the ribs extending diagonally from the first and third sides in substantially parallel arrangement, other selective ones of the ribs extending diagonally from the second and third sides in substantially parallel arrangement, additional selective ones of the ribs extending orthogonally from the first side to the second side for enhancing rigidity of the flat member; and at least one stiffening insert attached to and extending across the bottom surface orthogonal to the additional selective ones of the ribs. 2. The racking board of claim 1, wherein the at least one stiffening insert has a generally E-shaped cross sectional configuration.3. The racking board of claim 1, wherein further additional selective ones of the ribs extends across the bottom surface orthogonally from the third side to the fourth side.4. The racking board of claim 1, further comprising at least one aperture extending between the top and bottom surfaces through which a hand can partially fit.5. The racking board of claim 1, further comprising a plurality of apertures extending between the top and bottom surfaces through which a finger can fit.6. The racking board of claim 1, further comprising a plurality of weight reducing holes extending between the top and bottom surfaces.7. The racking board of claim 1, further comprising at least one side that is rounded outward from the top surface to the bottom surface.8. The racking board of claim 1, further comprising at least one stacking tab register that includes a flat portion extending outward from the top surface and a channel extending inward from the bottom surface, wherein the channel further includes a contact surface that is largely parallel to the flat portion.9. The racking board of claim 1, wherein the at least one stiffening insert is embedded within at least one rib.10. The racking board of claim 1, wherein the flat member and ribs are made out of a polypropylene polyphenylene oxide blend.11. A method of forming a printing press racking board, the board including a flat member comprising a top surface and a bottom surface, the flat member further comprising first, second, third, and fourth sides extending between the top and bottom surfaces, the first and second sides disposed between the third and fourth sides, a plurality of ribs attached to the bottom surface, selective ones of the ribs extending diagonally from the first and third sides in substantially parallel arrangement, other selective ones of the ribs extending diagonally from the second and third sides in substantially parallel arrangement, additional selective ones of the ribs extending orthogonally from the first side to the second side for enhancing rigidity of the flat member, at least one stiffening insert attached to and extending across the bottom surface orthogonal to the additional selective ones of the ribs, the method comprising:preparing a mold that defines a cavity capable of containing a molten polymer and capable of forming the printing press racking board; positioning at least one stiffening insert within the mold; introducing the molten polymer into the mold; allowing the molten polymer to cool, forming an injection molded printing press racking board. 12. The racking board of claim 11, wherein the at least one stiffening insert has a generally E-shaped cross sectional configuration.13. The racking board of claim 11, wherein the at least one stiffening insert partially extends across the bottom surface orthogonally from the third side to the fourth side.14. The racking board of claim 11, wherein the molten polymer is a polypropylene polyphenylene oxide blend.15. An injection molded corner angle support, the corner angle support useful for providing space between stacked printing press racking boards and comprising:a first portion defining a first end, a second end, a top side, a bottom side, a front face, and a back face; a second portion attached to the first end and extending generally perpendicular from the first portion, the second portion defining a top side, a bottom side, a front face, and a back face; a first flange attached to the top side of the first portion and extending perpendicularly away from the back face of the first portion; a second flange attached to the bottom side of the first portion and extending perpendicularly away from the back face of the first portion; a third flange attached to the top side of the second portion and extending perpendicularly away from the back face of the second portion; and a fourth flange attached to the bottom side of the second portion and extending perpendicularly away from the back face of the second portion. 16. The corner angle support of claim 15, further comprising weight reducing apertures extending through the first portion from the front face to the back face of the first portion.17. The corner angle support of claim 15, further comprising weight reducing apertures extending through the second portion from the front face to the back face of the second portion.18. The corner angle support of claim 15, further comprising:a first set of ribs individually attached to both the back face of the first portion and the first flange; a second set of ribs individually attached to both the back face of the first portion and the second flange; a third set of ribs individually attached to both the back face of the second portion and the third flange; and a fourth set of ribs individually attached to both the back face of the second portion and the fourth flange. 19. The corner angle support of claim 15, wherein the corner angle support is made from a polypropylene polyphenylene oxide blend.20. An injection-molded printing press racking board comprising:a flat member comprising a top surface and a bottom surface, the flat member including a plurality of weight reducing holes extending between the top and bottom surfaces, the flat member further including a plurality of apertures extending between the top and bottom surfaces for placing a finger therethrough and at least one aperture extending between the top and bottom surfaces for placing a hand therethrough, the flat member further comprising first, second, third, and fourth sides extending between the top and bottom surfaces, the first and second sides disposed between the third and fourth sides, at least one of the sides being rounded outward from the top surface to the bottom surface, the flat member being made of a polypropylene polyphenylene oxide blend; at least one stacking tab register including a flat portion and a channel, the flat portion extending outward from the top surface of the flat member, the channel extending inward from the bottom surface of the flat member, wherein the channel further includes a contact surface that is largely parallel to the flat portion; a plurality of ribs attached to the bottom surface, selective ones of the ribs extending diagonally from the first and third sides in parallel arrangement, other selective ones of the ribs extending diagonally from the second and third sides in parallel arrangement, additional selective ones of the ribs extending orthogonally from the first side to the second side for enhancing rigidity of the flat member; at least one stiffening insert attached to and extending across the bottom surface orthogonal to the additional selective ones of the ribs, the stiffening insert including a generally E-shaped cross section for enhancing rigidity of the flat member; and an injection molded corner angle support, the corner angle support useful for providing space between stacked printing press racking boards, the corner angle support comprising: a first portion defining a first end, a second end, a top side, a bottom side, a front face, and a back face; a second portion attached to the first end and extending generally perpendicular from the first portion, the second portion defining a top side, a bottom side, a front face, and a back face; a first flange attached to the top side of the first portion and extending perpendicularly away from the back face of the first portion; a second flange attached to the bottom side of the first portion and extending perpendicularly away from the back face of the first portion; a third flange attached to the top side of the second portion and extending perpendicularly away from the back face of the second portion; and a fourth flange attached to the bottom side of the second portion and extending perpendicularly away from the back face of the second portion.