Adhesive applicator, and bookbinding and image-forming apparatuses equipped with the applicator
US8139999B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 3, 2007 |
| Grant date | Mar 20, 2012 |
| Priority date | — |
| Expiry date | Jan 27, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/00936
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A glue container receiving hot-melt adhesive, an applicator roll, an apparatus casing, and disposed therein, a cooling unit and its control unit, for cooling a post-cover-sheet-processed sheaf, are provided. The control unit is configured to halt the cooling unit when adhesive is being applied to a sheaf with the applicator roll, and to actuate it after adhesive application. The control unit: (1) cools the apparatus casing interior by actuating the cooling unit when a sheaf is conveyed toward a glue application position; (2) halts the cooling unit when adhesive is being applied to a sheaf conveyed into the glue application position; and (3) reactivates the cooling unit after adhesive application. Thus controlling the apparatus-internal temperature appropriately in applying a hot-melt adhesive to a sheaf, and binding the sheaf together with a cover, etc. enables secure binding adhesion in a short time frame, without bookbinding defects such as missing leaves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.