# US 2016/0243784 A1 · Folder-gluer > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2016/0243784 A1 - Document ID: US20160243784A1 - Status: Published application - Kind: A1 - Application number: 15/041,490 - Filed: 2016-02-11 - Published: 2016-08-25 - Earliest claimed: 2015-02-20 - Assignees: Kabushiki Kaisha Isowa - Applicants: Kabushiki Kaisha Isowa - Inventors: Mitsuhiro ISHIZUKA; Yukiomi SUZUKI - Web page: https://patentgrep.com/patent/US20160243784A1 ## CPC - B31B 50/624: {Applying glue on blanks} - B31B 50/006: {Controlling; Regulating; Measuring; Improving safety} - B31B 50/042: {using rolls, belts or chains} - B31B 50/044: {involving aligning} - B31B 50/36: by continuously feeding the sheets, blanks or webs to stationary members, e.g. plates, ploughs or cores - B31B 50/58: by moving endless belts {or chains} - B31B 50/62: by adhesives - B31B 50/64: by applying heat or pressure, e.g. by welding (to unite areas where adhesives are applied B31B50/62) - B31B 50/26: Folding sheets, blanks or webs - B31B 2100/00: Rigid or semi-rigid containers made by folding single-piece sheets, blanks or webs - B31B 2110/35: rectangular, e.g. square - B31B 2120/302: {collapsible into a flat condition} - B31B: MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER (making wound articles, e.g. wound tubes, B31C; combined making and filling B65B) ## Abstract Disclosed is a folder-gluer comprises: a conveyance device configured to convey a corrugated paperboard sheet; a pair of bending bars configured to bend a first panel and a fourth panel of the corrugated paperboard sheet from 0 degree to about 90 degrees; a pair of bending plates provided in a zone where the first and fourth panels are bent from 0 degree to about 90 degrees, and configured such that distal ends thereof come into contact, respectively, with crease lines of the first and fourth panels or vicinities of the crease lines, wherein each of the bending plates is configured to be pushed and moved outwardly in a width direction, by a push-out device; a detector configured to detect a position of the corrugated paperboard sheet; and a control device configured to control the push-out device. ## Claims ### Claim 1 A folder-gluer for, with respect to a corrugated paperboard sheet having first to fourth panels and a joint flap serially connected together through respective connection regions, folding each of the first panel and the fourth panel in the connection region thereof and gluing the folded first and fourth panels together through the joint flap, comprising: a conveyance device configured to convey the corrugated paperboard sheet; a pair of first bending devices, configured to come into contact with respective outside surfaces of the first panel and the fourth panel of the corrugated paperboard sheet being conveyed by the conveyance device, to bend the first and fourth panels from 0 degree to about 90 degrees; a pair of second bending devices, configured to come into contact with the respective outside surfaces of the first panel and the fourth panel of the corrugated paperboard sheet being conveyed by the conveyance device, to bend the first and fourth panels from about 90 degrees to 180 degrees; a pair of bending members provided in a zone where the first and fourth panels are bent from 0 degree to about 90 degrees, and configured such that distal ends thereof come into contact, respectively, with a crease line formed in a reverse surface of the first panel or a vicinity of the crease line, and a crease line formed in a reverse surface of the fourth panel or a vicinity of the crease line, each of the bending members being movable outwardly in a width direction by a given distance; a detection device provided upstream of the bending members, and configured to detect a position of the corrugated paperboard sheet being conveyed; a push-out device configured to push and move each of the bending members outwardly in the width direction by a given distance; and a control device, during a given period of time after the position of the corrugated paperboard sheet being conveyed is detected by the detection device, to control the push-out device to push and move each of the bending members outwardly in the width direction by the given distance to thereby expand a downstream region of each of the first and fourth panels in the width direction. ### Claim 2 (depends on 1) The folder-gluer according to claim 1, wherein each of the bending members is configured such that a downstream portion thereof is swingable in the width direction, about an upstream end thereof serving as a support point. ### Claim 3 (depends on 1) The folder-gluer according to claim 1, which further comprises a wheel member provided widthwise outside each of the bending members, and configured to come into contact with the outside surface of an associated one of the first and fourth panels at a position of a fold line thereof. ### Claim 4 (depends on 3) The folder-gluer according to claim 3, wherein the wheel member comprises a cylindrical portion and a flange portion provided on an upper side of the cylindrical portion, and wherein the wheel member is configured such that an outer peripheral surface of the cylindrical portion and a lower surface of the flange portion come into contact with the outside surface of the associated one of the first and fourth panels at the position of the fold line thereof. ### Claim 5 (depends on 3) The folder-gluer according to claim 3, wherein the wheel member is provided along a conveyance direction of the corrugated paperboard sheet at a position where a bending angle of the corrugated paperboard sheet reached 80 to 90 degrees. ### Claim 6 (depends on 3) The folder-gluer according to claim 3, wherein the wheel member is a drive wheel configured to rotate in a direction causing the corrugated paperboard sheet to be conveyed. ### Claim 7 (depends on 1) The folder-gluer according to claim 1, wherein the push-out device is an air cylinder configured to push and move each of the bending members outwardly in the width direction by means of high-pressure air. ### Claim 8 (depends on 1) The folder-gluer according to claim 1, wherein the push-out device is a servomotor configured to push and move each of the bending members outwardly in the width direction. ### Claim 9 (depends on 1) The folder-gluer according to claim 1, wherein a movement distance of each of the bending members toward an outward side in the width direction is variable depending on properties of the corrugated paperboard sheet. ### Claim 10 (depends on 1) The folder-gluer according to claim 1, wherein a length of each of the bending members in a conveyance direction of the corrugated paperboard sheet is greater than a box depth dimension of the corrugated paperboard sheet to be conveyed. ### Claim 11 (depends on 3) The folder-gluer according to claim 3, wherein the given period of time during which, under control of the control device, the push-out device pushes each of the bending members outwardly in the width direction by the given distance is a period of time during which a downstream portion of the corrugated paperboard sheet having one-half of a box depth dimension thereof passes through a position of the wheel member. ### Claim 12 (depends on 1) The folder-gluer according to claim 1, wherein the given distance of each of the bending members toward an outward side in the width direction is approximately one-half of a widthwise dimension of a slot of the corrugated paperboard sheet.