Folded leaflet and method and apparatus for making same
AssigneeVijuk Equipment, Inc.
InventorRobert Vijuk
Life of this patent
Estimating the term…
Abstract
A method and apparatus are disclosed for making a leaflet having fold lines and cross folds normal to the fold lines and with an adhesive adhering a lip portion of a long leg of the leaflet to a short leg of the leaflet to avoid leaving a loose edge on the leaflet. Sheets are conveyed in a first direction to a first folding at a first folding station, and then a second conveyor feeds the sheets to travel at right angles to a cross folder at a second folding station. The cross folds are made to a lip portion on a long leg and adhesive applicator applies adhesive to the lip portion which is adhered by the adhesive to a folded panel to form a leaflet having fold lines and cross folds at its edges, thereby eliminating any loose edges. Loose edges may open the leaflet during a high speed conveyance thereof.
Claims9
In an apparatus for folding a folded, enclosed leaflet formed from an integral sheet having fold lines and cross folds normal to the fold lines therein and having adhesive interior of the leaflet to join folded halves of the leaflet together, the leaflet having an interior lip portion and having cross folds and fold lines along exterior edges of the leaflet so as not to leave a loose edge on the leaflet, said apparatus comprising:
- first conveyor means for feeding sheets in a first direction to a first folding station,
- a first folding means at the first folding station for folding the sheet with fold lines extending normal to the direction of travel of the sheet into the folding station,
- means for delivery of the folded sheets with fold lines to the transfer station,
- second conveyor means for feeding the folded sheets in a direction substantially at right angles to the first direction of travel,
- adhesive application means for applying adhesive to a portion of the folded sheet,
- second folder means at a second folding station to fold the folded sheet in a direction perpendicular to the fold lines formed at the first folding station thereby forming cross folds and including means to form one leg longer than the other leg to leave a lip portion on the longer leg, and
- said second folder means including a folder to make a final cross fold which joins the leaflet halves together and to push the lip portion against a folded panel to adhere the latter to the lip portion to form a folded leaflet with adhered panels and without a loose edge.
A method of folding sheets at high speeds with automatic equipment to form leaflets having adhered panels facing each other, said method comprising the steps of:
- feeding sheets forwardly from a stack to a first folding station,
- at the first folding station folding the sheet a plurality of times,
- feeding the folded sheet from the first folding station forwardly with a closed folded edge leading in the travel direction,
- transferring the folded sheets at a transfer station for travel in a direction to right angles in the first direction of travel,
- applying adhesive to the folded sheet at a predetermined location,
- traveling folded sheet forwardly to a second folding station and folding the folded sheet with a first short leg and a second longer leg leaving a lip portion on the longer leg, and
- folding the folded sheets again to bring a portion of the second let against the lip portion with an adhesive adhering the lip portion to the folded panel to complete the folded leaflet.
In an apparatus for folding a folded, enclosed leaflet formed from an integral sheet having fold lines and cross folds normal to the fold lines therein and having adhesive interior of the leaflet to join folded halves of the leaflet together, the leaflet having an interior lip portion and having cross folds and fold lines along exterior edges of the leaflet so as not to leave a loose edge on the leaflet,
- first conveyor means for feeding sheets in a first direction to a first folding station,
- a first folding means at the first folding station for folding the sheet with a fold lien extending normal to the direction of travel of the sheet into the folding station,
- means for delivery of the folded sheets to a transfer station,
- second conveyor means for feeding the folded sheets in a direction substantially at right angles to the first direction of travel,
- adhesive application means for applying adhesive to a portion of the folded sheet,
- second folder means at a second folding station to fold the folded sheet in a direction perpendicular to the fold line formed at the first folding station thereby forming cross folds and including means to form one leg longer than the other leg to leave a lip portion on the longer leg,
- said second folder means including a folder to make a final cross fold and to push the lip portion against a a folded panel to adhere the latter to the lip portion to form a folded leaflet with adhered panels and without a loose edge, and stacker means for stacking the folded leaflets in a stack or row.
A method of folding sheets at high speeds with automatic equipment folding a folded, enclosed leaflet formed from an integral sheet having fold liens and cross folds normal to the fold lines therein and having adhesive interior of the leaflet to join folded halves of the leaflet together, the leaflet having an interior lip portion and having cross folds and fold lines along exterior edges of the leaflet so as not to leave a loose edge on the leaflet, said method comprising the steps of:
- feeding sheets forwardly from a stack to a first folding station,
- at the first folding station folding the sheet a plurality of times while forming fold lines in the sheet,
- feeding the folded sheet from the first folding station forwardly with a closed folded edge leading in the travel direction,
- transferring the folded sheets at a transfer station for travel in a direction to right angles in the first direction of travel,
- applying adhesive to the folded sheet at a predetermined location,
- traveling folded sheet forwardly to a second folding station and folding the folded sheet in a direction perpendicular to the fold lines formed at the first folding station thereby forming cross folds and at the second folding station forming a first short leg and a second longer leg leaving a lip portion on the longer leg,
- folding the folded sheets again at the second folding station to bring a portion of the second leg against the lip portion with an adhesive adhering the lip portion to the folded panel to complete the folded leaflet without a loose edge thereon, and automatically stacking the leaflets in a stack or row.
Dependencies are inferred from the claim text.