Handle bag

Abstract

A bag has front and back thermoplastic panels having upper and lower end edges and joined-together longitudinal edges. A C-shaped thermoplastic handle has a central part extending transversely parallel to one of the end edges of the front panel and a pair of end parts extending transversely inward toward each other from outer ends of the central part and bearing directly against a face of the front panel. Respective strong welds secure each of the end parts to the face of the front panel at a spacing from the outer end of the respective central part.

1 . A bag comprising: 
 front and back thermoplastic panels having upper and lower end edges and joined-together longitudinal edges;    a C-shaped thermoplastic handle having a central part extending transversely parallel to one of the end edges of the front panel and a pair of end parts extending transversely inward toward each other from outer ends of the central part and bearing directly against a face of the front panel; and    respective strong welds securing each of the end parts to the face of the front panel at a spacing from the respective outer end of the central part.    
   
   
       2 . The bag defined in  claim 1  wherein the front panel has an end flap extending from the one end edge, the handle being secured by the welds to the end flap.  
   
   
       3 . The bag defined in  claim 2  wherein the end flap lies flat against an inner face of the front panel.  
   
   
       4 . The bag defined in  claim 3  wherein both panels have such an end flap and one such handle is secured to each of the end flaps.  
   
   
       5 . The bag defined in  claim 2  wherein the end flap has an outer edge secured via another such end flap to an end edge of the back panel.  
   
   
       6 . The bag defined in  claim 5  wherein one such handle is secured to each end flap.  
   
   
       7 . The bag defined in  claim 1  wherein the back panel is longer than the front panel and has an extension flap projecting past an end edge of the front panel, the extension flap being formed with a through going hole.  
   
   
       8 . The bag defined in  claim 7  wherein the extension flap is at an end of the bag opposite the one end edge.  
   
   
       9 . The bag defined in  claim 1  wherein the back wall has an extension flap extending up and folded over the one end edge and formed with a slot through which the handle can extend.  
   
   
       10 . The bag defined in  claim 1 , further comprising 
 a floor panel bridging the end edges of the panels opposite the one end edge.    
   
   
       11 . The bag defined in  claim 1  wherein the handle is provided with a bond-inhibiting layer between the location and the central part.  
   
   
       12 . The bag defined in  claim 1 , further comprising 
 at least one weak bond between the handle and the face.    
   
   
       13 . The bag defined in  claim 12  wherein the weak bond is an adhesive joint.  
   
   
       14 . The bag defined in  claim 1  wherein the welds unitarily bond the handle end parts to the front panel.  
   
   
       15 . A method of making a bag comprising the steps of: 
 forming a C-shaped handle with a straight center part and with a pair of end parts extending toward each other from ends of the center part;    providing between locations on the end parts offset from the center-part ends and the center part a bond-inhibiting layer;    positioning the handle against a face of a bag panel; and    unitarily welding the end parts at the locations to the bag-panel face.    
   
   
       16 . The bag-making method defined in  claim 15  wherein the end parts are unitarily welded with heat.  
   
   
       17 . The bag-making method defined in  claim 15 , further comprising the step of 
 weakly bonding the handle to the face offset from the locations.    
   
   
       18 . The bag-making method defined in  claim 15  wherein the bag panel has a floor-panel extension joined to another floor-panel extension of another bag panel, the handle being unitarily bonded to one of the floor-panel extensions.