Lay-flat book production

Patent metadata

Field	Value
Publication number	US-10245874-B2
Application number	US-201415506180-A
Country	US
Kind code	B2
Filing date	Aug 28, 2014
Priority date	Aug 28, 2014
Publication date	Apr 2, 2019
Grant date	Apr 2, 2019

Abstract

Provided is a lay-flat book block production apparatus. The apparatus comprises a glue dispenser, the glue dispenser to transition between an active state in which glue is to be provided to one side of the web which is to be guided past the glue dispenser and an inactive state in which glue is not to be provided to the web which is to be guided past the glue dispenser. The apparatus further comprises a folding unit, wherein the folding unit is to fold the web along a plurality of crease lines wherein each of a plurality of flat portions of a side of the folded web faces another of the plurality of flat portions of a same side.

First claim

The invention claimed is:

1. A lay-flat book block production apparatus comprising:
a glue dispenser to transition between an active state in which glue is provided to one side of a web that is guided past the glue dispenser, and an inactive state in which glue is not provided to the web that is guided past the glue dispenser; and
a folding unit to fold the web, wherein each of a plurality of flat portions of a side of the folded web faces another of the plurality of flat portions of a same side, and wherein the folding unit includes a roller pair to guide the web and provide the web with a plurality of crease lines and a plurality of perforation lines, wherein:
a first roller of the roller pair includes at least one longitudinally extending, radially protruding portion to dive into at least one corresponding longitudinally extending notch of a second roller of the roller pair to crease the web, wherein the at least one corresponding longitudinally extending notch forces the web to sharply bend around the at least one longitudinally extending, radially protruding portion, and
the second roller of the roller pair includes at least one longitudinally extending line of radially protruding pins to dive into at least one longitudinally extending line of recesses of the first roller of the roller pair to perforate the web.

2. The lay-flat book block production apparatus according to claim 1 , wherein the folding unit is to fold the web along the plurality of perforation lines.

3. The lay-flat book block production apparatus according to claim 1 , wherein the folding unit arranges the folded web in a pile of flat web portions.

4. The lay-flat book block production apparatus according to claim 3 , wherein the folding unit further arranges the plurality of crease lines at one side of the pile of flat web portions.

5. A method of producing lay-flat book blocks, comprising:
guiding a web along a roller pair of a folding unit;
providing the web with a plurality of crease lines and a plurality of perforation lines, including:
creasing the web by diving at least one longitudinally extending, radially protruding portion of a first roller of the roller pair into at least one corresponding longitudinally extending notch of a second roller of the roller pair; and
perforating the web by diving at least one longitudinally extending line of radially protruding pins of the second roller of the roller pair into at least one longitudinally extending line of recesses of the first roller of the roller pair;

applying glue to at least a portion of one side of a web, including transitioning between an active state in which glue is provided to one side of the web that is guided past a glue dispenser, and an inactive state in which glue is not provided to the one side of the web that is guided past the glue dispenser;
folding the web along a plurality of crease lines and the plurality of perforation lines using the folding unit; and
gluing each of a plurality of flat portions of the one side of the folded web to one of a plurality of other flat portions of the one side.

6. The method according to claim 5 , wherein glue is not provided to at least two flat portions of the one side of the folded web that face each other.

7. The method according to claim 6 , further comprising separating the at least two flat portions of the one side of the web that face each other and to which glue has not been applied.

8. The method according to claim 5 , wherein the folding comprises arranging the folded web in a pile of flat web portions.

9. The method according to claim 8 , wherein folding comprises arranging the plurality of crease lines at one side of the pile of flat web portions.

10. The method according to claim 9 , further comprising cutting away a portion of a side of the pile that is opposite to the one side of the pile at which the crease lines are arranged.

Assignees

• Hp Indigo Bv

Inventors

• Menashe Avihay
• Joseph Lior
• Meiri Ilan
• Kent Itzik

Classifications

• B42C9/0081

  applying adhesive to individual sheets for binding them together (by fusing, welding B42C9/0093) · CPC title

• B42C19/06 Primary

  starting with webs not provided for elsewhere · CPC title

• B65H2301/5152

  Cutting partially, e.g. perforating · CPC title

• B65H45/20

  Zig-zag folders {(B65H45/228 takes precedence)} · CPC title

• B65H45/30

  Folding in combination with creasing, smoothing or application of adhesive (folding or adhesive application in article or web delivering B65H37/00) · CPC title