Mechanism and method of making an envelope

• US 4,071,997 A
• Filed: 04/27/1976
• Issued: 02/07/1978
• Est. Priority Date: 04/27/1976
• Status: Expired due to Term

• Current Assignee: GBR Systems Corp.
• Original Assignee: Gunther Business Systems Incorporated
• Inventors: Golicz, Roman M., Gunther, William H. Jr., Hough, James W.
• Primary Examiner(s): McGehee, Travis S.
• Assistant Examiner(s): Sipos, John
• Application Number:
  US05/680,788
• Time in Patent Office: 651 Days
• Field of Search: 53/31, 53/32, 53/206, 53/209, 53/266 A, 53/172, 53/389, 93/62, 93/63 R, 93/63 M, 229/69, 271/52.5, 156/512, 270/64, 83/106
• US Class Current: 53/429
• CPC Class Codes: B31B 2150/00 Flexible containers made from sheets or blanks, e.g. from flattened tubes
• CPC Class Codes: B31B 2160/10 rectangular and flat, i.e. without structural provision for thickness of contents
• CPC Class Codes: B31B 2170/20 having multi-layered walls, e.g. laminated or lined
• CPC Class Codes: B43M 5/045 using heat-sensitive adhesive
• CPC Class Codes: B43M 5/047 using pressure-sensitive adhesive

Abstract

An improved machine and method of making and folding a personalized letter and a personalized envelope.

Claims

1. A mechanism for forming an envelope, comprising a composite sheet which includes an envelope assembly and a letter insert assembly connected together in lengthwise relationship to each other, means for moving said composite sheet in a lengthwise direction, means for severing said composite sheet widthwise between said letter insert assembly and said envelope assembly to separate the two assemblies, means for moving the envelope assembly along one path and for moving the letter insert assembly along another path, said means for moving the letter insert assembly includes means for positioning the letter insert assembly in superimposed relationship to the envelope assembly, said means for moving the envelope assemblies includes means for causing the letter insert assembly to be deposited on said moving envelope assembly, means for folding the envelope assembly around the letter insert assembly and means for sealing the edges of the envelope assembly.

2. A mechanism as claimed in claim 1 wherein the paths of said insert assembly and said envelope assembly are in superimposed relationship to each other.

3. A mechanism as claimed in claim 2 wherein means are provided for alternately deflecting said insert assembly and said envelope assembly for deposition of each of the respective moving means.

4. A mechanism as claimed in claim 3, wherein said deflecting means comprises a pivotally mounted deflecting chute.

5. A mechanism as claimed in claim 4 wherein said envelope assembly moving means comprises conveyor means having upstanding pins adapted to strike the envelope assembly.

6. A mechanism as claimed in claim 5 wherein said letter insert assembly moving means comprises a slide chute overlying the conveyor means down which the letter insert assembly slides, said slide chute having a lower toe overlying the conveyor means.

7. A mechanism as claimed in claim 6 wherein slits are provided in said slide chute to permit the pins to strike the letter insert assembly and push it off the toe and onto an envelope assembly.

8. A mechanism as claimed in claim 7 wherein said deflecting means comprises a chute movable from one position to direct an envelope assembly to the conveyor means to a second position to direct the letter insert assembly to the slide chute.

9. A mechanism as claimed in claim 8 wherein a folding mechanism is provided adjacent the upper edge of said slide chute to fold the letter insert assembly.

10. A mechanism as claimed in claim 9 wherein means are provided for applying adhesive to the edges of the envelope assembly.

11. A mechanism as claimed in claim 10 wherein said envelope assembly folding means comprises a ramp having a stop at its forward end and being spaced above the plane of the conveyor to form a gap and means for causing the envelope to fold along a fold line and to push the folding envelope through said gap.

12. A mechanism as claimed in claim 11 wherein a deflecting mechanism is provided movable upwardly to close the gap and permit the envelope to move up the ramp and to thereafter be movable downwardly to open the gap to permit the envelope to pass through the gap.

13. A mechanism as claimed in claim 12 wherein pressure applying means are provided to seal the edges of the folded envelope assembly.

14. A mechanism as claimed in claim 13 wherein means are provided for transferring said folded envelope assembly to a flap folding means.

15. A mechanism as claimed in claim 14 wherein said flap folding means comprises second conveyor means moving at an angle to said first conveyor means.

16. A mechanism as claimed in claim 15 wherein pressure rollers are adapted to place the envelopes into contact with the second conveyor means.

17. A mechanism as claimed in claim 16 wherein said pressure means comprises a roller assembly pivotally mounted above said second conveyor means, movable from a raised position to allow an envelope assembly to be deposited on the second conveyor means to a lowered position in contact with the envelope assembly.

18. A mechanism as claimed in claim 17 wherein an adhesive is applied to the flap, means are provided to turn the flap, and a pressure roller is provided to seal the flap.

19. A mechanism as claimed in claim 18 wherein said envelope assembly and said letter insert assembly are on a continuous web and wherein cutter means are provided in advance to said deflecting means to separate the letter insert assembly from the envelope assembly and to cause the deflecting means to alternately deposite the envelope assembly onto the first conveyor means and the insert assembly to the slide chute.

20. A mechanism as claimed in claim 19 wherein said web has perforations along the edges and wherein means are provided for removing the perforations before the web is moved to the cutter means.

21. A mechanism as claimed in claim 20 wherein a pair of letter insert assemblies and a pair of envelope assemblies are provided transversely of each other on the web on either side of the center line of the web.

22. A mechanism as claimed in claim 21 wherein a cutter is provided near the top of said chute to cut the letter insert assembly along the center.

23. A mechanism as claimed in claim 22 wherein guides are provided on the chute to prevent the letter insert assembly from angling.

24. A mechanism as claimed in claim 23 wherein said adhesive applier applies adhesive to the edges of the envelope assembly and along the center line.

25. A mechanism as claimed in claim 24 wherein guide rails are provided on each side of the letter insert assembly when positioned on the envelope assembly to prevent adhesive from being applied to the letter.

26. A mechanism as claimed in claim 25 wherein a cutter is provided after the folding mechanism to cut the envelope along the center line to form two envelopes.

27. A mechanism as claimed in claim 26 wherein means are provided to deposit additional inserts on said envelope assembly, in advance of the envelope folding mechanism, said means comprising a mechanism to position addition inserts over the first conveyor means to permit the pins to strike the inserts and cause them to drop on the envelope assembly.

28. A mechanism as claimed in claim 27 wherein side trimming knives are provided adjacent the letter folding means to trim the edges.

29. A method for forming an envelope from a composite sheet which includes an envelope assembly and a letter insert assembly connected together in lengthwise relationship to each other comprising moving said composite sheet in a lengthwise direction, severing said composite sheet widthwise between said letter assembly and said envelope assembly to separate the two assemblies, moving the envelope assembly along one path and moving the letter assembly along another path, positioning the insert assembly in superimposed relationship to the envelope assembly, causing the insert assembly to be deposited on said moving envelope assembly, folding the envelope assembly around the insert assembly and sealing the edges of the envelope assembly.

30. A method as claimed in claim 29 wherein the paths of said insert assembly and said envelope assembly are in superimposed relationship to each other.

31. A method as claimed in claim 30 wherein said insert assembly and said envelope assembly are alternately deflected for deposition of each on the respective moving means.

32. A method as claimed in claim 31 wherein said insert assembly is folded before deposition on the envelope assembly.

33. A method as claimed in claim 32 wherein adhesive is applied to the edges of the envelope assembly and pressure is applied to the edges of the folded envelope assembly to seal them.

34. A method as claimed in claim 33 wherein the flaps of said folded envelope assembly are folded and adhered and wherein said envelope is moved in a second direction while the flap is folded.

35. A method as claimed in claim 34 wherein said envelope assembly and said letter insert assembly are on a continuous web and wherein the web is cut in advance to said deflecting step to separate the letter insert assembly from the envelope assembly.

36. A method as claimed in claim 35 wherein said web has perforations along the edges and the perforations are removed before the web is cut.

37. A method as claimed in claim 36 wherein a pair of letter insert assemblies and a pair of envelope assemblies are provided transversely of each other on the web on either side of the center line of the web and said letter insert assembly is cut along the center before being folded.

38. A method as claimed in claim 37 wherein adhesive is applied to the edges of the envelope assembly and along the center line.

39. A method as claimed in claim 38 wherein after the folding the envelope is cut along the center line to form two envelopes.

40. A method as claimed in claim 39 wherein said letter insert assembly is folded before deposition on the envelope assembly.

41. A method as claimed in claim 40 wherein additional inserts are deposited on the envelope assembly before folding.