Booklet binding apparatus and image forming system

Abstract

A booklet binding apparatus including a clamp mechanism for clamping a sheet bundle, a coating member for applying adhesive to the spine surface of the sheet bundle clamped by the clamp mechanism, and an attaching and detaching mechanism for moving the coating member to and from the spine surface of the sheet bundle, wherein the attaching and detaching mechanism includes a separation mechanism which makes the coating member to be detached from the spine surface of the sheet bundle when an abnormal incident has occurred during application of the adhesive.

1 . A booklet binding apparatus comprising: 
 a clamp mechanism for clamping a bundle of sheets;    a coating member for coating adhesive on an end surface of the bundle of sheets clamped by the clamp mechanism;    an attaching and detaching mechanism for attaching the coating member to the end surface of the bundle of sheets and for detaching the coating member from the end surface; and    a separation mechanism for detaching the coating member from the end surface of the bundle of sheets, when an abnormal incident occurs during coating of adhesive on the end surface of the bundle of sheets by the coating member.    
   
   
       2 . The booklet binding apparatus of  claim 1 , 
 wherein the attaching and detaching mechanism has a solenoid for attaching the coating member to an end surface of a bundle of sheets and for detaching the coating member from the end surface, and the separation mechanism detaches the coating member from the end surface of the bundle of sheets by cutting off electricity supply to the solenoid.    
   
   
       3 . The booklet binding apparatus of  claim 1 , 
 wherein the attaching and detaching mechanism has a cam for attaching the coating member to an end surface of a bundle of sheets and for detaching the coating member from the end surface, and the separation mechanism detaches the coating member from the end surface of the bundle of sheets by cutting off driving force to the cam.    
   
   
       4 . The booklet binding apparatus of  claim 1 , 
 wherein the attaching and detaching mechanism has a link mechanism for attaching the coating member to an end surface of a bundle of sheets and for detaching the coating member from the end surface, and the separation mechanism detaches the coating member from the end surface of the bundle of sheets by cutting off driving force to the link mechanism.    
   
   
       5 . An image forming system comprising: 
 an image forming apparatus having an image forming section for forming an image on a sheet;    a booklet binding apparatus for producing a booklet by receiving a plurality of sheets from the image forming apparatus, the booklet binding apparatus comprising;    a clamp mechanism for clamping a bundle of sheets;    a coating member for coating adhesive on an end surface of the bundle of sheets clamped by the clamp mechanism;    an attaching and detaching mechanism for attaching the coating member to the end surface of the bundle of sheets and for detaching the coating member from the end surface; and    a separation mechanism for detaching the coating member from the end surface of the bundle of sheets, when an abnormal incident occurs during coating of adhesive on the end surface of the bundle of sheets by the coating member.    
   
   
       6 . The image forming system of  claim 5 , 
 wherein the attaching and detaching mechanism has a solenoid for attaching the coating member to an end surface of a bundle of sheets and for detaching the coating member from the end surface, and the separation mechanism detaches the coating member from the end surface of the bundle of sheets by cutting off electricity supply to the solenoid.    
   
   
       7 . The image forming system of  claim 5 , 
 wherein the attaching and detaching mechanism has a cam for attaching the coating member to an end surface of a bundle of sheets and for detaching the coating member from the end surface, and the separation mechanism detaches the coating member from the end surface of the bundle of sheets by cutting off driving force to the cam.    
   
   
       8 . The image forming system of  claim 5 , 
 wherein the attaching and detaching mechanism has a link mechanism for attaching the coating member to an end surface of a bundle of sheets and for detaching the coating member from the end surface, and the separation mechanism detaches the coating member from the end surface of the bundle of sheets by cutting off driving force to the link mechanism.