Cutting – Tool or tool with support – Joint or connection
Reexamination Certificate
2000-09-22
2003-02-25
Peterson, Kenneth E. (Department: 3724)
Cutting
Tool or tool with support
Joint or connection
C083S653000, C083S699110
Reexamination Certificate
active
06523448
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates generally to die board assemblies and more particularly to an easily adaptable die board assembly.
2. Description of the Related Art
The following art defines the present state of this field:
Jenkins, U.S. Pat. No. D274,335 describes the ornamental design for a die cutting apparatus.
Rickenbacker, U.S. Pat. No. 3,635,115 describes a punching device for cutting sheet-type layer pieces having mutually adjustable knife plates and means for adjusting the knife plates to cut pieces from the sheet of desired sizes.
Saunders, U.S. Pat. No. 3,673,929 describes a creasing rule for a rotary cutting die. The creating rule is used to produce and indented line in a corrugated board, along which line the corrugated board is to be folded subsequently, when formed into a final product, such as a container. The cutting die comprises a curved die plate fastened on a rotatable cylinder with the creasing rule mounted in the die plate. The new creasing rule includes a base or flange which extends through the die plate to contact and be backed up by the cylinder, which then positions the creasing rule at a fixed distance from the surface of the cylinder, even with a variation in the thickness of the die plate. Further, the creasing rule is designed with a broad tapered web on each side of an indenting ridge which produces the indented line, so that the possibility of breaking of the liner of the corrugated board when the indentation is made is minimized.
Castille, U.S. Pat. No. 3,752,042 describes a system of four arcuate dies are adapted to be mounted in evenly spaced threaded holes in a rotary cylinder for a cardboard box fabricating machine. The positions of three of the dies are adjustable either longitudinally or circumferentially, or both, on the rotary cylinder whereby the dimensions of the cardboard boxes manufactured may be varied infinitely. Further, the position of a single die plate on the rotary cylinder may be adjusted both longitudinally and circumferentially of the rotary cylinder to an infinite number of positions.
Jones et al., U.S. Pat. No. 3,826,170 describes a cutting blade system for cutting sheet material into pieces of generally the same contour but of different sizes, especially useful in the manufacture of apparel for cutting cloth into pieces to be sewn together into garments. The system involves a set of primary cutting blade segments common to all sizes of a piece of given contour or pattern to be cut out of the sheet material and a set of auxiliary cutting blade segments additive to (or subtractive from) the primary segments to constitute cutting blade assemblies of different sizes in the stated contour or pattern. The segments are made of steel rule die stock, are releaseably held together in assembly, and assemblies of segments in various patterns are utilized in a hydraulic press for die-cutting through one or more layers of material in the press. The press may have an electromagnetic head for magnetically gripping the assemblies for the cutting operation and for quickly releasing them after the cutting operation whereupon the assemblies may be disassembled and the primary segments reassembled with auxiliary segments in a different size.
Young, Jr. et al., U.S. Pat. No. 3,835,746 describes an improved die assembly having easily replaceable rule. A plate or roll directly receives on or more sections of rule according to a predeterined design or shape. The rule is thin elongated strip metal having a flat underside and an upperside that is sharp, radiused or otherwise prepared to perform a particular function on a material. The flat underside of the cutting rule is directly in contact with the backing plate or roll or a resilient cover positioned thereon. Removable, resilient mounting means apply a spring force against the rule to hold same against a rigid support in proper position for die cutting, creasing or the like. Removability of the resilient mounting means permits redy replacement of damaged or dulled cutting rule without any undue expense or appreciable production loss. Mounting means for the rule are also claimed, and include a rigid support and a resilient support to receive rule therebetween. The resilient support has at least one spring secured thereto and extending outwardly therefrom. The end of the support when in position defines the thickness of the rule and the spring system extends outwardly therefrom. The spring system is deformed by the rule upon insertion of the rule from above an continually applies a spring force against the rule to hold same in place.
Gendron, U.S. Pat. No. 3,929,059 describes a reusable make-ready or counter plate for cutting and scoring boxboard to form carton blanks. The reusable make-ready or counter plate comprises a mounting plate that is detachably mountable on the press and at least on cutting plate which is adapted to co-operate with knives and creasing rules on a male die to form a carton blank. The cutting plates are releaseably retained on the mounting plate.
Bishop, U.S. Pat. No. 3,941,038 describes a forme construction for a die cutting apparatus in which cutting rule is supported in slots in a relatively massive support plate by using sinuous resilient elements lying between walls of slots in the support plate and the sides of the rule.
Quinlan, U.S. Pat. No. 4,020,724 describes a rotary cutting die adapted to be mounted on a rotatable cylindrical die drum of a rotary press to cut a planar object passed between such rotating die drum and a cooperative oppositely-rotating anvil drum of said press. The rotary die includes: a die board having a concave surface adapted to cover a portion of the die drum, an opposite convex surface, and a plurality of openings therethrough; a plurality of fasteners adapted to selectively hold the die board to the die drum; a plate-like knife member adapted to be mounted on the die board at any of a plurality of large incremental positions in a longitudinal direction; and holding means mounted on the die board and selectively operable to hold the knife member at any selected one of the large incremental positions. In one embodiment, the die board openings are longitudinally-elongated to permit the die board to be shifted longitudinally relative to the die drum. In another embodiment, the die board openings are circumferentially-elongated and uniquely spaced from one another in a longitudinal direction such that some of the die board openings will register with some of the die drum holes at any of a plurality of discrete positions in a longitudinal direction. In this embodiment, compound movement of the die board and the knife member enables the knife edge to be selectively positioned along the die drum at any of a plurality of small incremental positions.
Sauer et al., U.S. Pat. No. 4,103,580 describes a method of and apparatus for developing on tape and applying a pre-selected die design, etc., defined by spaced drilled holes, to a die board automatically by a tape controlled apparatus, and to automatically produce properly dimensioned cutting rule for the design. A computer is programmed to produce information which is transferred to a tape, or the like, fed to a numerical control machine to energize selected mechanisms to physically apply a pre-selected design formed by spaced drilled holes, routing, etc., to a die board for reception of spaced tangs or legs of cutting rule, or the like, or other workings. The information from the computer also is utilized, by means of an intermediate tape or the like, to energize a numerically controlled cutting rule machine to automatically produce cutting rule segments of the proper number and length for mounting in the drilled design on the cutting board. Included in the computer programming is a foreshortening of dimensions, if required, to compensate for the relative position of the cutting rule edge in arcuate die boards. Illustrated is an exemplary apparatus for punching cutting rule and for drilling or drilling and routing rotary die board including an electrica
Flores-Sánchez Omar
Peterson Kenneth E.
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