Bookbinding: process and apparatus – Process
Patent
1995-03-13
1997-07-15
Fridie, Jr., Willmon
Bookbinding: process and apparatus
Process
412 16, B42B 900
Patent
active
056477147
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a method of automatically cutting book indexing indentations and an automatic index cutting machine for carrying out the method.
2. Description of the Prior Art
Present-day machines which cut indexing indentations or index tabs in pages that are larger than A5 are semiautomatic. A greater part of the work with these index cutting machines is effected manually. The number of pages that shall lie beneath a given index indentation or index tab are turned over by hand and then inserted manually beneath the reference. The work that is carried out automatically in such semiautomatic index cutting machines is the work of cutting an index indentation and re-adjustment to the next following index indentation. These procedures are carried on a book that lies flat on a supportive surface. The drawbacks with such semi-automatic index cutting machines is that they require a work force to carry out the manual procedures and that production is relatively low.
SUMMARY OF THE INVENTION
These drawbacks are eliminated by the inventive automatic index cutting machine and automatic index cutting method having the characteristic features set forth in the characterizing clause of claim 1 and claim 6 respectively. The inventive index cutting machine is constructed of modules, where each module includes a counter which automatically counts a predetermined number of pages for a specific index indentation, and knife means for cutting said predetermined number of pages. The book is transported between the modules while hanging from a transportation device. In each module, a count is made up to the page on which an index or reference indentation is to be made and the page is then cut in the knife arrangement, whereafter the book is transported to the next module where a count is made to the intended place of the next index indentation and this page is cut, this procedure being repeated in module after module.
The present invention will now be described in more detail with reference to an exemplifying embodiment thereof and also with reference to the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a schematic elevation of one embodiment of the inventive automatic index cutting machine;
FIG. 2 is a sectional view of part of the inventive automatic index cutting machine shown in FIG. 1; and
FIG. 3 is a perspective view of a counter included in the inventive automatic index cutting machine.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
The exemplifying embodiment of the inventive automatic index cutting machine or index cutting machine 10 illustrated in FIGS. 1 and 2 includes a number (n) of modules 12:1-12:n, where each module 12:1-12:n includes a counter (see FIG. 3) and a knife arrangement 28. The index cutting machine 10 also includes a book storage means 14 for books 26 and an infeed means 16 which functions to feed one book 26 at a time from the storage means 14 to a transporter 20 which forms part of a transportation arrangement 40 and firmly holds the book 26 by its spine. The cutter 10 also includes an outfeed means 18 which discharges the processed books from the indexing machine, i.e. books in which all index indentations or index tabs have been cut. The illustrated embodiment of the indexing machine 10 also includes a transporter switch 22 which changes the direction of movement of the transporter 20, and a return table 24 which returns the transporter 20 to the beginning of the indexing machine 10.
As shown in FIG. 2, each knife arrangement 28 includes a knife means 30, which moves linearly and which may consist of a knife blade. Although not shown, the knife is moved by means of a pneumatic piston-cylinder device which translates said movement to the knife means 30 via a link system (not shown). The knife arrangement 28 also includes a spring-biassed anvil (a clamping strip not shown) which holds the index indentation firmly at the cutting moment. It will be noted that the knife means 30 cuts in both directions of i
REFERENCES:
patent: 2078656 (1937-04-01), Erickson
patent: 2187827 (1940-01-01), Eickman
patent: 2489825 (1949-11-01), Sieb
patent: 2763324 (1956-09-01), Loverch et al.
patent: 3250162 (1966-05-01), Bunting
patent: 4484501 (1984-11-01), Ramcke
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