JP2008119777A - Cutting jig for book-bound cover - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cutting jig which cuts an end margin while a cut portion of the end margin of a cover to be cut of a case-bound book is correctly aligned with ends of a bundle of sheets. <P>SOLUTION: The cutting jig has: a base plate 11 to be inserted between a rear face of the cover 2 and the bundle 3 of sheets; and a pressing plate 13 pivoted at both ends of the base plate 11 and rotated around the axis for holding the cover 2 on the upper surface 11a of the base plate 11. The base plate 11 is equipped with an end contact surface 16 coming into contact with the ends 4 from outward. The pressing plate 13 is equipped with a cut guide surface 22 for guiding a cutting edge. While the pressing plate 13 is rotated toward the upper surface 11a of the base plate 11 and closed, the contact surface 16 and the guide surface 22 are leveled. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a bookbinding cover cutting jig for cutting an end protruding portion of a cover to be cut that protrudes from a paper bundle of case-bound books.

  Conventionally, as shown in FIG. 7, in case binding where the sheet bundle 41 is wrapped with a cover 42 and the back surface of the sheet bundle 41 and the cover 42 are bonded with an adhesive 43, this corresponds to the maximum thickness of the sheet bundle 41. A cover 42 having a cover length L is used. That is, as shown in FIG. 7B, one end 42a of the cover sheet 42 is aligned with the fore edge 44 (side end) of the sheet bundle 41, the sheet bundle 41 is wrapped with the cover sheet 42, the back surface of the sheet bundle 41, the cover sheet 42, When the sheet bundle 41 is thinner than the maximum thickness, the other end 42b of the cover sheet 42 protrudes outward from the small edge 44 of the sheet bundle 41, as shown in FIG. As described above, it is necessary to cut such an end protruding portion 45 so that the other end of the cover sheet 42 is aligned with the small edge 44 of the sheet bundle 41.

Patent Document 1 below discloses a cutter knife linear ruler that guides a cutter knife with a guide shaft and cuts paper or the like in a straight line.
Patent Document 2 below discloses a cutting machine that moves a slider along a rail and cuts paper in a straight line with a rotary blade held by the slider.

Further, in Patent Document 3 below, the paper deterrent body is rotated to the upper surface side of the base body so that a large number of sheets are held on the upper surface of the base body, the pressing member is moved, and the paper is removed by a cutter built in the pressing member. A cutter is disclosed that cuts a straight line.
JP-A-6-105972 JP 11-333788 A JP 2001-150383 A

  However, as shown in FIG. 7C, it is difficult to accurately cut the end protruding portion 45 so that the other end 42b of the cover 42 is aligned with the edge 44 of the sheet bundle 41, and the other end 42b of the cover 42 is There is a problem that the sheet bundle 41 is cut at a position shifted from the fore edge 44.

  In addition, when the devices of the above Patent Documents 1 to 3 are used, paper or the like can be cut in a straight line, but the cut portion of the end protruding portion 45 of the cover 42 is accurately placed in the fore edge 44 of the sheet bundle 41. There is a problem that it is difficult to align.

  An object of the present invention is to provide a binding cover cutting jig capable of accurately aligning the cut portion of the edge protruding portion of the cut cover sheet with the edge of the sheet bundle and cutting the edge protruding portion. To do.

  In order to achieve the above object, the first invention is a bookbinding cover cutting jig used when cutting an end protruding part of a cover sheet to be cut out of a bundle of bound-bound books, A substrate inserted between the back surface of the cover sheet to be cut and the sheet bundle along the edge of the book, and pivotally supported at both ends of the substrate and pivoted about the shaft to sandwich the cover sheet on the top surface of the substrate The board is provided with a fore edge abutting part that comes into contact with the fore edge from the outside, and the holding plate is provided with a cutting guide part for guiding a cutting blade. In the closed state, the fore edge contact portion and the cutting guide portion are located on the same plane.

  According to this, the substrate is inserted between the rear surface of the cover sheet to be cut and the sheet bundle along the case edge of the case-bound book, and the edge contact portion is brought into contact with the edge from the outside. Next, the holding plate is rotated and closed to the upper surface of the substrate, and the cover sheet to be cut is sandwiched between the holding plate and the upper surface of the substrate. In this state, by moving the cutting blade in the height direction of the book along the cutting guide portion, the cutting blade moves while being guided by the cutting guide portion, and cuts the protruding portion of the edge of the cover sheet to be cut. To do.

  At the time of the above cutting, since the cutting guide portion and the fore edge contact portion are located on the same plane, the position of the cutting edge of the cutting blade guided by the cutting guide portion becomes the same as the position of the fore edge of the sheet bundle. The cutting part of the edge part of the cut cover sheet coincides with the position of the edge of the sheet bundle, so that the edge part can be cut accurately and easily so that the edge part of the cover sheet is aligned with the edge. .

In the second aspect of the present invention, the presser plate is made of metal, and a magnet for attracting the presser plate is provided on the substrate.
According to this, when the presser plate is turned and closed to the upper surface of the substrate and the cover sheet to be cut is sandwiched between the presser plate and the upper surface of the substrate, the magnet adsorbs the presser plate, so that the presser plate is closed. It is fixed by and can prevent inadvertent opening. Thereby, a to-be-cut cover sheet can be clamped reliably.

In the third invention, a cutting guide groove for guiding the cutting edge of the cutting blade is formed in the substrate, and the cutting edge of the cutting blade guided by the cutting guide portion is fitted into the cutting guide groove at the time of cutting.
According to this, at the time of cutting, the cutting blade moves while being guided by the cutting guide portion, the cutting edge of the cutting blade is fitted into the cutting guide groove and guided by the cutting guide groove, and the end protruding portion is covered. Cut from the cut cover. Therefore, the cutting edge of the cutting blade can be prevented from wobbling, and the end protruding portion can be more accurately cut so that the end of the cover sheet to be cut is aligned with the edge of the sheet bundle.

  As described above, according to the present invention, when the end portion of the cover sheet to be cut is cut, the cutting guide portion and the fore edge contact portion are located on the same plane. The end protruding portion can be cut accurately and easily so as to align with the fore edge.

Hereinafter, embodiments of the present invention will be described with reference to FIGS.
As shown in FIGS. 1 and 5, reference numeral 1 denotes a case-bound book, and an end portion 2 a protruding from the sheet bundle 3 is formed at the end portion of the cover sheet 2 to be cut. Reference numeral 10 denotes a cutting jig for cutting the end protruding portion 2a. The configuration of the cutting jig 10 will be described below.

  As shown in FIGS. 1 to 5, the cutting jig 10 includes a substrate 11 inserted between the back surface of the cover sheet 2 to be cut and the sheet bundle 3 along the fork 4 of the book 1, and the cover sheet 2 to be cut. The holding plate 13 is sandwiched between the upper surface 11 a of the substrate 11. A protrusion 15 that protrudes downward is formed on one side of the width direction of the substrate 11, and a small edge contact surface 16 (small edge) that contacts the small hole 4 from the outside is formed on the side surface of the protrusion 15. An example of a contact portion is formed.

  The presser plate 13 is made of metal such as a steel plate, and is pivotally supported via arms 17 at both ends in the length direction of the substrate 11, and is provided so as to be rotatable about both shafts 12. As shown in FIGS. 4 to 6, a guide body 19 is provided on one side of the holding plate 13 in the width direction. The guide body 19 is composed of a guide piece 20 that stands upward and is formed in the length direction, and an L-shaped thin protective plate 21 that is applied from the outer surface of the guide piece 20 to the back surface of the presser plate 13. Has been. An example of a cutting guide surface 22 (an example of a cutting guide portion) that guides the cutting blade 5 (cutter or the like) in the height direction H (that is, the cutting direction) of the book 1 is provided on the side surface of the protective plate 21 applied to the guide piece 20. ) Is formed.

  As shown in FIGS. 1 to 3, a recess 24 is formed over the entire length of the upper surface 11 a of the substrate 11, and a magnet 25 that attracts the presser plate 13 is provided in the recess 24. As shown in FIG. 3B, in the state where the presser plate 13 is rotated in the closing direction S and the presser plate 13 is closed, the protective plate 21 of the presser plate 13 contacts the upper surface 11a of the substrate 11, and As shown in FIG. 6, the fore edge contact surface 16 and the cutting guide surface 22 are set to be located on the same plane.

  As shown in FIGS. 5 and 6, a recessed surface 27 that is one step lower than the upper surface 11 a is formed on one side in the width direction of the substrate 11. An L-shaped thin protective plate 28 is applied from the depressed surface 27 to one side surface of the substrate 11. Further, a cutting guide groove 29 surrounded by the step surface 31 that falls from the upper surface 11 a to the recessed surface 27, the side surface of the protective plate 28, and the recessed surface 27 is formed in the substrate 11 in the length direction. The cutting guide groove 29 guides the cutting edge 5a of the cutting blade 5, and is set so that the step surface 31 and the cutting guide surface 22 are positioned on the same plane with the presser plate 13 closed at the time of cutting. The cutting edge 5 a of the cutting blade 5 guided by the cutting guide surface 22 is fitted into the cutting guide groove 29.

Hereinafter, the operation of the above configuration will be described.
As shown in FIGS. 1B and 5, the substrate 11 of the cutting jig 10 is inserted between the back surface of the cover sheet 2 to be cut and the sheet bundle 3 along the edge 4 of the case-bound book 1. The fore edge contact surface 16 is brought into contact with the fore edge 4 from the outside.

  Next, the presser plate 13 is rotated in the closing direction S to be closed, and the cover sheet 2 to be cut is sandwiched between the presser plate 13 and the upper surface 11 a of the substrate 11. At this time, as shown in FIG. 5B, since the magnet 25 attracts the presser plate 13, the presser plate 13 is fixed in a closed state and can be prevented from being opened carelessly. Thereby, the to-be-cut cover 2 can be clamped reliably.

  The cutting blade 5 is moved in the height direction H of the book 1 along the cutting guide surface 22 as shown in FIG. 4 and FIG. Accordingly, the cutting blade 5 moves while being guided by the cutting guide surface 22, the cutting edge 5 a of the cutting blade 5 is fitted into the cutting guide groove 29 and guided by the cutting guide groove 29, and the end protruding portion 2 a is Cut from the cover sheet 2 to be cut.

  At the time of the cutting, as shown in FIG. 6, the cutting guide surface 22 and the fore edge contact surface 16 are located on the same plane, so the position of the cutting edge 5 a of the cutting blade 5 guided by the cutting guide surface 22 is The position is the same as the position of the edge 4 (side edge) of the sheet bundle 3, and the cut portion of the edge protruding portion 2 a coincides with the position of the edge 4 so that the edge of the cover sheet 2 to be cut is aligned with the edge 4. Further, the end protruding portion 2a can be cut accurately and easily.

  Furthermore, since the cutting edge 5a of the cutting blade 5 is guided by the cutting guide groove 29 as described above, it is possible to prevent the cutting edge 5a of the cutting blade 5 from wobbling in the blade thickness direction, and the end protruding portion 2a. Can be cut even more accurately.

  After cutting off the end protruding portion 2a, as shown by the phantom line in FIG. 5B, the presser plate 13 is rotated in the opening direction O against the attracting force of the magnet 25 and opened. Is removed outwardly from between the back surface of the cut cover 2 and the sheet bundle 3.

  In the above embodiment, as shown in FIG. 6, the cutting guide surface 22 is formed on the side surface of the protection plate 21, but the protection plate 21 is not provided and the cutting guide surface 22 is formed on the outer surface of the guide piece 20. May be.

  In the above embodiment, the depression surface 27 is formed on the substrate 11 and the protection plate 28 is provided on the depression surface 27 to form the cutting guide groove 29. However, the depression surface 27 and the protection plate 28 are not provided, and the substrate The cutting guide groove 29 may be directly formed on the upper surface 11a of the 11.

It is a perspective view of the jig for cutting in an embodiment of the invention, (a) shows the state where the presser plate was opened, and (b) shows the state where the jig for cutting was set in the book. It is a figure of the jig for a cutting | disconnection, (a) is a XX arrow line view in Fig.1 (a), (b) is a YY arrow line view in Fig.1 (a), (c) is FIG. It is a ZZ arrow line view in (a). FIG. 3 is an enlarged perspective view of the cutting jig, wherein (a) shows a state in which the presser plate is opened, and (b) shows a state in which the presser plate is closed. FIG. 6 is an enlarged perspective view of the cutting jig, showing a state in which the presser plate is closed. It is a front view of the jig for cutting similarly, (a) shows the state which opened the press plate, (b) shows the state which closed the press plate. FIG. 4 is an enlarged longitudinal sectional view of a portion of the cutting jig contact surface and the cutting guide surface of the cutting tool, where (a) shows a state where the presser plate is closed and a cover to be cut is held, and (b) shows a cutting blade. The state which has cut | disconnected the edge part protruding part is shown. It is the schematic explaining the procedure of the conventional case binding.

Explanation of symbols

1 2 Covered sheet 2a Edge protruding part 3 Sheet bundle 4 Small edge 5 Cutting blade 5a Cutting edge 10 Cutting jig 11 Substrate 11a Upper surface 12 Shaft 13 Presser plate 16 Small edge contact surface (small edge contact part)
22 Cutting guide surface (cutting guide)
25 Magnet 29 Cutting guide groove

Claims (3)

A binding cover cutting jig used to cut an end protruding portion of a cut cover that protrudes from a case-bound book bundle,
A substrate inserted between the back side of the cover to be cut and the bundle of paper along the edge of the book;
A presser plate that is pivotally supported at both ends of the substrate and rotates around the shaft so as to sandwich the cut cover sheet on the upper surface of the substrate;
The substrate is provided with a fore edge abutting portion that contacts the fore edge from the outside,
The holding plate is provided with a cutting guide for guiding the cutting blade,
A jig for cutting a bookbinding cover, characterized in that the fore edge contact portion and the cutting guide portion are located on the same plane in a state where the presser plate is turned to the upper surface side and closed. The presser plate is made of metal,
The bookbinding cover cutting jig according to claim 1, wherein a magnet for adsorbing the presser plate is provided on the substrate. A cutting guide groove for guiding the cutting edge of the cutting blade is formed on the substrate,
3. The binding cover cutting jig according to claim 1 or 2, wherein the cutting edge of the cutting blade guided by the cutting guide portion is fitted into the cutting guide groove when cutting.

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