JP2014061614A - Envelope paper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an envelope paper which is appropriately transferred by a comb-like transportation roller.SOLUTION: An envelop paper used to form an envelop comprises: a first formation paper 107 of a rectangle; a second formation paper 109 of a rectangle which is connected through the first formation paper 107 and a first folding part 111 in the envelop development direction; and a third formation paper 113 of a rectangle which is connected through the second formation paper 109 and a second folding part 115 in an envelop development direction. The first formation paper 107 and the third formation paper 113 have a leading-end linear part Y formed in a direction SD orthogonal to an envelop transportation direction so that a skew correction is performed by striking of a register roller 30 including comb-like rollers 30a-30f which are formed in a direction orthogonal to the envelop development direction, and a chamfered portions 125, 127 formed on corners which are at end portions in a direction orthogonal to the envelop development direction so that end portions in the envelop development direction contact with the rollers 30a-30f.

Description

  The present invention relates to an envelope paper used when producing an envelope.

  In recent years, with the expansion of the use of envelopes such as direct mail, various developments have been made on envelope paper used when envelopes are produced by an automatic envelope production system (see Patent Document 1). The configuration of the envelope paper according to the prior art will be described as follows.

  The envelope paper according to the prior art includes a rectangular first component paper, and the second component paper having a rectangular shape is arranged in the envelope unfolding direction (envelope transport direction) via the first folding portion. Along the line. Moreover, the rectangular 3rd component paper is continuously provided in the 2nd component paper along the envelope expansion direction via the 2nd folding part. In other words, three rectangular component papers are continuously provided along the envelope unfolding direction via two folding portions.

  An envelope automatic production system includes an image forming apparatus that forms an image on the above-described envelope paper and content paper for inclusion, and an envelope produced by using the content paper produced using the content paper. And a sealing device for sealing.

JP 2000-343892 A

  As an image forming apparatus of an automatic envelope production system, a line head type ink jet printing apparatus capable of realizing variable printing and high speed printing may be used.

  In this line head type ink jet printing apparatus, an ink jet head that discharges ink and an endless belt that is provided directly below the ink jet head and conveys envelope paper are provided.

  The distance (gap) between the endless belt and the ink jet head is very small, about 1 mm, in order to land the ink at an appropriate position. Usually, for example, the envelope paper is moved to the endless belt side using air pressure by driving a fan. Printing is performed on the envelope paper in the sucked state.

  Further, in the image forming apparatus, envelope paper is conveyed to an unsupported belt by a conveyance roller, and a comb-shaped conveyance roller is often used as this conveyance roller rather than a cylindrical roller.

  Envelope sheets conveyed by these endless belts and conveyance rollers have a glue portion for bonding the constituent sheets, and therefore are easily deformed. In particular, when deformation occurs at the corner of the envelope paper, the comb-shaped transport roller cannot correct the deformation during transport, and the corner may be bent.

  When the envelope paper is conveyed by the endless belt with the corners bent as described above, there may be a problem such as collision with the ink jet head or defective printing.

  The present invention has been made in view of the above problems, and an object thereof is to provide an envelope paper that is properly conveyed by a comb-shaped conveyance roller.

  In order to achieve the above object, the first feature of the envelope paper according to the present invention is that the envelope is sealed by being nipped by a conveyance roller provided in a comb-teeth shape and being conveyed in the envelope conveyance direction within the enclosure sealing system. A front end straight portion is formed in a direction perpendicular to the envelope transport direction of the front end portion so that the front end portion in the envelope transport direction is abutted against the transport roller and is skew-corrected. Further, a chamfered portion is formed at a corner that is an end portion in a direction orthogonal to the envelope conveying direction, and both ends of the leading end straight portion are formed so as to be nipped by a conveying roller provided in the comb shape. There is in being.

  The second feature of the envelope paper according to the present invention is that the envelope paper is placed on the paper feed table along the envelope conveying direction when the leading edge is aligned and placed on a paper feed table for picking up one sheet at a time. The chamfered portion is formed so that a side edge straight portion in a direction orthogonal to the envelope conveying direction is in contact with a pair of provided paper fences.

  According to the first feature of the envelope paper according to the present invention, the leading end straight line in the direction perpendicular to the envelope transporting direction of the leading end is corrected so that the leading end in the envelope transporting direction is abutted against the transporting roller and is skew-corrected. A chamfered portion is formed at a corner that is an end portion in a direction orthogonal to the envelope conveyance direction, and both ends of the straight end portion of the tip are niped by a conveyance roller provided in a comb shape. Since it is formed, it is properly conveyed by a comb-like conveyance roller.

  According to the second feature of the envelope paper according to the present invention, when the front end is aligned and placed on a paper feed tray that picks up and feeds one sheet at a time, the envelope paper is provided along the envelope conveyance direction. Since the chamfered portion is formed so that the side edge straight portion in the direction orthogonal to the envelope conveying direction is in contact with the pair of paper fences, the envelope paper can be guided to the pair of paper fences. And can be fed appropriately in the envelope conveyance direction.

It is explanatory drawing explaining that an envelope is formed using the envelope paper which is one Embodiment of this invention with an enclosure sealing system. It is a typical front view of the enclosure sealing system which produces an envelope using the envelope paper which is one Embodiment of this invention. It is the figure which looked at the envelope paper which is one Embodiment of this invention from the envelope inner side. (A) is the figure which looked at the envelope produced using the envelope paper which is one Embodiment of this invention from the back paper side, (b) is the cross section along the IIB-IIB line | wire in (a). FIG. 4C is a cross-sectional view taken along line IIC-IIC in FIG. It is the figure which showed the state in which the envelope paper which concerns on one Embodiment of this invention was mounted in the paper feed tray. It is the figure which showed the state in which the envelope paper which concerns on one Embodiment of this invention was conveyed from the paper feed tray. It is the figure explaining the effect | action and effect of the envelope paper which is one Embodiment of this invention.

  Embodiments of the present invention will be described below.

  In the following description, any size paper can be applied. In the following embodiments, printing is performed by, for example, inkjet, but printing may be performed by other methods, and the printing format is not particularly limited in the present invention.

<Configuration of encapsulated sealing system>
A configuration of an encapsulating sealing system for producing an envelope paper according to an embodiment of the present invention will be described. In the description, “upstream” refers to the upstream as viewed from the conveyance direction of the content sheet, and “downstream” refers to the downstream as viewed from the conveyance direction of the content sheet. In FIG. 2, “L” indicates the left direction as viewed from the front, and “R” indicates the right direction as viewed from the front.

  FIG. 1 is an explanatory diagram for explaining that an envelope is formed by using an envelope paper which is an embodiment of the present invention in an encapsulating sealing system, and FIG. 2 is a diagram illustrating an envelope paper which is an embodiment of the present invention. It is a typical front view of the enclosure sealing system which produces an envelope using.

  As shown in FIGS. 1 and 2, the encapsulating / sealing system 1 includes an image forming apparatus 3 and an encapsulating / sealing apparatus 5. As shown in FIG. 2, the image forming apparatus 3 performs printing on a plurality of content sheets P1 and an envelope sheet P2, and from the plurality of printed content sheets P1 and envelope sheets P2 to a content B and an envelope E. Are formed, and the envelope E is sealed in a state in which the contents B are sealed, thereby producing a sealed letter M. In other words, the encapsulating and sealing system 1 includes an image forming apparatus 3 that performs printing on a plurality of content sheets P1 and envelope sheets P2, and an encapsulating and sealing apparatus (sealed letter preparation) provided at a position adjacent to the image forming apparatus 3. Device) 5 and a combination. Here, the sealing device 5 forms the content B and the envelope E from the plurality of printed content sheets P1 and the envelope paper P2, respectively, and seals the envelope E in a state where the content B is sealed. Thus, the sealed letter M is produced.

  The image forming apparatus 3 includes an image forming apparatus casing 7 (hereinafter, referred to as an apparatus casing 7 as appropriate). In the apparatus casing 7, image data included in the job (content image data and An ink jet printing section 9 is provided for printing on the content paper P1 and the envelope paper P2 based on the envelope image data. The printing unit 9 includes a plurality of line-type ink heads 11A, 11B, 11C, and 11D that discharge black, cyan, magenta, and yellow inks.

  An annular platen belt 14 is provided immediately below the ink heads 11A, 11B, 11C, and 11D, and the content paper P1 and the envelope paper P2 are placed on the platen by a suction fan (not shown) installed in the platen belt 14. The ink is sucked onto the belt 14 and is printed on the content paper P1 and the envelope paper P2 by the ink ejected from the ink heads 11A, 11B, 11C, and 11D while being transported on the transport path at a predetermined transport speed.

  The intervals between the ink heads 11A, 11B, 11C, and 11D and the platen belt 14 are set narrow so that the ink is landed at an appropriate position. Therefore, it is necessary to suppress the deformation of the envelope paper P2 as much as possible so that the envelope paper P2 conveyed by the platen belt 14 does not contact the ink heads 11A, 11B, 11C, and 11D.

  In the apparatus housing 7, a loop-shaped print conveyance path 13 for conveying the content paper P <b> 1 and the envelope paper P <b> 2 is provided so as to surround the printing unit 9. A plurality of first transport roller pairs (not shown) that sandwich and transport the content paper P1 and the envelope paper P2 are provided at intervals along the print transport path 13 in the apparatus housing 7. Yes. The plurality of first transport roller pairs can be rotated by driving an appropriate first transport motor (not shown).

  Below the printing unit 9 in the apparatus housing 7 are a plurality of content sheet feeding units 15 that sequentially feed a plurality of content sheets P1 to the printing unit 9 side (printing conveyance path 13 side). It is provided stepwise in the direction. Each content paper feeding unit 15 sequentially feeds a plurality of content papers P1 stacked on the paper feeding tray 17 to the printing unit 9 side. A plurality of paper feed rollers 19 are provided. The plurality of paper feed rollers 19 can be rotated by driving an appropriate content paper feed motor (not shown).

  In addition, a paper feed transport path 21 for transporting the content paper P1 to the printing section 9 side is provided on the left side in the apparatus housing 7, and this paper feed transport path 21 is provided on the upstream end side ( Two branch portions 21a are provided on the base end side. Furthermore, the end of each branch portion 21a of the paper feed transport path 21 is connected to the corresponding content paper feed section 15, and the downstream end (tip) of the paper feed transport path 21 is the print transport path. 13 is connected. A plurality of second transport roller pairs (not shown) that sandwich and transport the content paper P1 are provided at intervals along the paper feed transport path 21 in the apparatus housing 7. The plurality of second transport roller pairs can be rotated by driving an appropriate second transport motor (not shown).

  The left side of the apparatus housing 7 is provided with an envelope paper feeding unit 23 for feeding the envelope paper P2 to the printing unit 9 side (printing conveyance path 13 side). A sheet feeding tray 25 for stacking a plurality of envelope sheets P2 and a plurality of sheet feeding rollers 27 for feeding the envelope sheets P2 stacked on the sheet feeding tray 25 to the printing unit 9 are provided. The roller 27 can be rotated by driving an appropriate envelope paper feed motor (not shown). In addition, a paper feed transport path 29 for transporting the envelope paper P2 to the printing unit 9 side is provided at the left part in the apparatus housing 7, and an upstream end (base end) of the paper feed transport path 29 is provided. Are connected to the envelope paper feed unit 23, and the downstream end (tip) of the paper feed conveyance path 29 is connected to the print conveyance path 13. A plurality of third transport roller pairs (not shown) that sandwich and transport the envelope paper P2 are provided at intervals along the paper feed transport path 29 in the apparatus housing 7. The plurality of third transport roller pairs can be rotated by driving an appropriate third transport motor (not shown).

  The envelope paper P2 transported through the paper feed transport path 29 and the content paper P1 transported through the paper feed transport path 21 are abutted against the registration rollers 30. As a result, the envelope paper P2 and the content paper P1 are slackened, and the slackness is used to align the leading edge of the envelope paper P2 and the content paper P1 and to correct the skew, and then to the printing unit 9 at a predetermined timing. Are transported.

  In the upper left portion of the print conveyance path 13, a cassette 31 is provided for temporarily storing the content paper P <b> 1 and the envelope paper P <b> 2. Further, a switchback transport path 33 is provided from the left part in the apparatus housing 7 to the inside of the cassette 31 for reversing the contents sheet P1 and the envelope sheet P2 and transporting them to the printing unit 9 side. The base end portion of the switchback transport path 33 can be connected to and disconnected from the print transport path 13 by operation of a known switchback flapper (not shown). Furthermore, an entrance / exit roller that pulls in the content paper P1 and the envelope paper P2 while holding them on the switchback conveyance path 33 side, or sends them out while holding them from the switchback conveyance path 33 side, on the left side in the apparatus housing 7. A pair (not shown) is provided, and the pair of entrance / exit rollers can be rotated in forward and reverse directions by driving an appropriate entrance / exit conveyance motor (not shown).

  A communication conveyance path 35 for conveying the content sheet P1 and the envelope sheet P2 sent out from the printing conveyance path 13 to the enclosing and sealing apparatus 5 side (rightward direction) is provided at the left portion in the apparatus casing 7. The upstream end portion (base end portion) of the communication conveyance path 35 can be connected to and disconnected from the print conveyance path 13 by operation of a known communication flapper (not shown). In addition, a plurality of fourth transport roller pairs (not shown) that sandwich and transport the content paper P1 and the envelope paper P2 are provided at intervals along the communication transport path 35 in the apparatus housing 7. The plurality of fourth transport roller pairs can be rotated by driving an appropriate fourth transport motor (not shown).

  As shown in FIGS. 1 and 2, the encapsulating and sealing apparatus 5 in the enclosing and sealing system 1 includes an encapsulating and sealing apparatus casing 41 (hereinafter, referred to as an apparatus casing 41 as appropriate). In the apparatus housing 41, an introduction conveyance path 43 is provided for conveying the printed content sheet P1 and envelope sheet P2 sent out from the communication conveyance path 35 (image forming apparatus 3) in the right direction. The upstream end portion (base end portion) of the introduction conveyance path 43 is connected to the downstream end portion (tip end portion) of the communication conveyance path 35. Further, at a position along the introduction conveyance path 43 in the apparatus casing 41, a plurality of fifth conveyance roller pairs (not shown) that convey the printed content paper P1 and the envelope paper P2 while sandwiching them are spaced apart. The plurality of fifth transport roller pairs can be rotated by driving an appropriate fifth transport motor (not shown).

  A content paper transport path 45 for transporting printed content paper P1 and the like (including content B) is provided in the apparatus housing 41, and an upstream end of the content paper transport path 45 The portion (base end portion) can be connected to and disconnected from the downstream end portion (tip end portion) of the introduction conveyance path 43 by the operation of a known sealing and sealing flapper. In addition, a plurality of sixth transport roller pairs (not shown) that sandwich and transport the printed content paper P1 and the like are spaced at positions along the content paper transport path 45 in the apparatus housing 41. The plurality of sixth transport roller pairs can be rotated by driving an appropriate sixth transport motor (not shown).

  An envelope paper transport path 47 for transporting the printed envelope paper P2 is provided above the content paper transport path 45 in the apparatus casing 41, and an upstream end portion of the envelope paper transport path 47 ( The base end portion) can be connected to and disconnected from the downstream end portion of the introduction conveyance path 43 by the operation of the above-described sealing and sealing flapper. Further, a plurality of seventh transport roller pairs (not shown) that sandwich and transport the printed envelope paper P2 are provided at intervals along the envelope paper transport path 47 in the apparatus housing 41. The plurality of seventh transport roller pairs can be rotated by driving an appropriate seventh transport motor (not shown).

  The downstream end side of the content paper transport path 45 and the downstream end side of the envelope paper transport path 47 merge. The envelope E and the like (including the envelope M) are conveyed to the downstream side (exit side) of the merging portion of the content paper conveyance path 45 and the envelope paper conveyance path 47 in the apparatus housing 41 with the content B enclosed. An envelope conveying path 49 is provided. The envelope conveyance path 49 extends to the upper part of the apparatus housing 41. A plurality of eighth transport roller pairs (not shown) that sandwich and transport the envelope E and the like are provided at intervals along the envelope transport path 49 in the apparatus housing 41.

  An alignment unit 51 is provided in the middle of the content sheet conveyance path 45. The alignment unit 51 accumulates and aligns a plurality of printed content sheets P1 sent out from the introduction conveyance path 43. The alignment unit 51 includes an alignment gate (standby gate) 53 that waits for a plurality of printed content sheets P1. The alignment gate 53 opens and closes the content sheet conveyance path 45. Can be switched to.

  A content forming unit 55 is provided on the exit side (downstream side) of the alignment unit 51 in the content sheet conveyance path 45, and the content formation unit 55 includes a plurality of aligned units sent out from the alignment unit 51. The content B is formed by bending a sheet of content paper P1 (hereinafter, appropriately referred to as content paper P1). And the specific structure of the content formation part 55 is as follows.

  A main folding roller 57 is rotatably provided on the outlet side (downstream side) of the aligning portion 51 in the apparatus casing 41, and the main folding roller 57 in the apparatus casing 41 is adjacent to the main folding roller 57. An introduction roller 59 for introducing the content sheet P1 from the content sheet conveyance path 45 in cooperation with the folding roller 57 is rotatably provided. A guide plate 61 for guiding the content sheet P 1 introduced by the main folding roller 57 and the introduction roller 59 is provided below the main folding roller 57 in the apparatus housing 41. Further, the guide plate 61 is provided with an abutting member 63 that abuts against the content paper P1 (the leading end) and gives a slack near the folding line P1a of the content paper P1. The position can be adjusted along the guide plate 61 by driving a first position adjusting motor (not shown). An intermediate roller 65 is rotatably provided in the apparatus housing 41 at a position adjacent to the main folding roller 57 and facing the introduction roller 59, and the intermediate roller 65 bends the content sheet P1. The content sheet P1 is folded from the folding line P1a in cooperation with the main folding roller 57 in a state where the vicinity of the line P1a is slackened.

  On the left side of the main folding roller 57 in the apparatus housing 41, a guide plate 67 for guiding the content paper P1 folded by the main folding roller 57 and the intermediate roller 65 is provided. Further, the guide plate 67 is provided with an abutting member 69 that abuts against (the front end of) the content paper P1 and gives a slack near the folding line P1b of the content paper P1. The position can be adjusted along the guide plate 67 by driving a second position adjusting motor (not shown). Further, a derivation roller 71 is rotatably provided at a position in the apparatus housing 41 adjacent to the main folding roller 57 and facing the intermediate roller 65, and the derivation roller 71 folds the content sheet P1. In the state where the vicinity of the line P1b is slackened, the content paper P1 is led from the folding line P1b to the content paper conveyance path 45 side in cooperation with the main folding roller 57.

  Here, the main folding roller 57, the introduction roller 59, the intermediate roller 65, and the outlet roller 71 can be rotated by driving an appropriate first folding motor (not shown).

  A front folding portion 73 is provided at the junction between the content paper conveyance path 45 and the envelope paper conveyance path 47, and the front folding section 73 is a printed envelope paper P2 (from the communication conveyance path 35). Hereinafter, the paper is appropriately folded (hereinafter referred to as envelope paper P2). And the specific structure of the front folding part 73 is as follows.

  A main fold roller 75 is rotatably provided at the junction between the content sheet conveyance path 45 and the envelope sheet conveyance path 47, and the main fold roller 75 is positioned adjacent to the main fold roller 75 in the apparatus housing 41. An introduction roller 77 for introducing the envelope sheet P2 from the envelope sheet conveyance path 47 in cooperation with the roller 75 is rotatably provided. In addition, a guide plate 79 for guiding the envelope paper P2 introduced by the main folding roller 75 and the introduction roller 77 is provided below the main folding roller 75 in the apparatus housing 41. Further, the guide plate 79 is provided with an abutting member 81 that abuts against the envelope paper P2 (the front end thereof) and gives a slack in the vicinity of a fold line P2a (second folding portion 115 described later) of the envelope paper P2. The position of the abutting member 81 can be adjusted along the guide plate 79 by driving an appropriate third position adjusting motor (not shown). A guide roller 83 is rotatably provided at a position in the apparatus housing 41 adjacent to the main folding roller 75 and facing the introduction roller 77. The guide roller 83 is a folding line for the envelope paper P2. The envelope paper P2 is folded from the fold line P2a in cooperation with the main folding roller 75 in a state where the vicinity of P2a is slackened, and the envelope B is fed to the envelope forming portion 85 side while containing the contents B conveyed by the conveying roller 72. .

  Here, the main folding roller 75, the introduction roller 77, and the lead-out roller 83 can be rotated by driving an appropriate second folding motor (not shown).

  On the downstream side of the front folding portion 73, there are provided conveying rollers 74 and 76 for sending the envelope paper P2 enclosing the contents B to the envelope forming portion 85 side. The conveying rollers 74 and 76 are drive motors (not shown). No.) is configured as a pair of rollers, a driving roller that is rotated by the driving of the driving roller and a driven roller that is rotated by the driving of the driving roller.

  Further, an envelope forming portion 85 is provided on the downstream side of the front folding portion 73, and this envelope forming portion 85 forms the envelope E by folding the envelope paper P <b> 2 sent out from the front folding portion 73. is there. And the specific structure of the envelope formation part 85 is as follows.

  A main folding roller 87 is rotatably provided on the outlet side (downstream side) of the front folding portion 73 in the apparatus casing 41, and a position adjacent to the main folding roller 87 in the apparatus casing 41 is An introduction roller 89 for introducing the envelope paper P2 from the envelope paper conveyance path 47 in cooperation with the main folding roller 87 is rotatably provided. A guide plate 91 for guiding the envelope paper P2 introduced by the main folding roller 87 and the introduction roller 89 is provided below the main folding roller 87 in the apparatus casing 41. Further, the guide plate 91 is provided with an abutting member 93 that abuts against the envelope paper P2 (the front end thereof) and gives a slack in the vicinity of a fold line P2b (first folding portion 111 described later) of the envelope paper P2. The abutting member 93 can be adjusted in position along the guide plate 91 by driving an appropriate fourth position adjusting motor (not shown). Further, along the guide plate 91, in the vicinity of the abutting member 93, there is provided a hydration mechanism 99 for applying water to an adhesive application portion to which a water paste of envelope paper P2 to be described later is applied. .

  A final folding roller 95 is rotatably provided at a position in the apparatus housing 41 adjacent to the main folding roller 87 and facing the introduction roller 89. The final folding roller 95 is provided on the envelope paper P2. The envelope paper P2 is folded from the folding line P2b in cooperation with the main folding roller 87 in a state where the vicinity of the folding line P2b is slackened.

  A sealing portion 86 is provided in the middle of the envelope conveyance path 49, and this sealing portion 86 seals the envelope E sent out from the envelope forming portion 85. The sealing portion 86 includes a sealing roller pair 88 that sandwiches and presses the envelope E, and the sealing roller pair 88 can be rotated by driving an appropriate sealing motor (not shown). Here, the envelope E is sealed by a pressure-sensitive adhesive previously applied to the envelope paper P2 by being sandwiched and pressed by the pair of sealing rollers 88.

  Further, on the downstream side of the envelope conveyance path 49, a seal discharge unit 92 that discharges the sealed letter M that is normally sealed and sent out from the envelope conveyance path 49 is provided.

  An envelope sheet according to an embodiment of the present invention will be described with reference to FIGS.

  As shown in FIGS. 3 and 4A, 4B, and 4C, the envelope paper P2 according to the embodiment of the present invention is used when the envelope M in which the content B is enclosed by the enclosure sealing system 1 is produced. A rectangular first component paper 107 is used. In addition, a rectangular second component paper 109 is continuously provided on the first component paper 107 along the envelope developing direction (envelope conveying direction) ED via the first folding portion 111 (the above-described fold line P2b). The second component paper 109 is provided with a rectangular third component paper 113 continuously along the envelope developing direction ED via the second folding portion 115 (the folding line P2a described above). In other words, the three component papers 107, 109, 113 are continuously provided along the envelope developing direction ED via the two folding portions 111, 115.

  Here, the length L of the second constituent paper 109 in the envelope developing direction ED is set to be equal to or longer than the length Lout of the first constituent paper 107 in the envelope developing direction ED.

  Further, the length Lout of the first component paper 107 in the envelope development direction ED is from an end portion of the third component paper 113 facing the second component paper 109 to an adhesive coating unit 123 described later in the envelope development direction ED. Distance T2 or more.

  Further, the third component paper 113 holds the contents B in cooperation with the second component paper 109, and the length Lin of the third component paper 113 in the envelope developing direction ED is It is set to be 3/4 or more of the length L in the envelope developing direction ED of the two-component paper 109 and less than L.

  And the 1st component paper 107 has the flap part 117 which can be opened and closed in the one end side of envelope expansion direction ED. Furthermore, the envelope inner side surface and the envelope outer side surface of each component paper 107, 109, 113 are printed with a document, a figure or the like by the inkjet printing unit 9, and the second folding unit 115 is a front folding unit. The envelope paper P2 is folded by being folded at 73 and the first folding portion 111 being folded at the envelope forming portion 85.

  Here, the grain of each of the constituent papers 107, 109, 113 is formed along a direction SD orthogonal to the envelope developing direction.

  A coating part 119, coated with a pressure sensitive adhesive (crimping adhesive) on both side edges of a direction SD (paper short side direction) SD orthogonal to the envelope developing direction on the inner surface of the envelope of each component paper 107, 109, 113. 121 are continuously formed along the envelope developing direction ED. In addition, as long as each coating part 119,121 is formed along the envelope expansion direction ED, it may be discontinuous.

  Water glue (an example of an adhesive) for closing the flap portion 117 is applied to a part of the outer surface of the envelope of the third component paper 113 that comes into contact with the flap portion 117 when the second folding portion 115 is bent. The worked adhesive coating part 123 is formed along the direction SD orthogonal to each other, and the adhesive coating part 123 is sandwiched between the tips of the pair of coating parts 119 and 121.

  Further, in the adhesive coating unit 123, the distance T2 from the end of the third component paper 113 facing the second component paper 109 to the adhesive coating unit 123 in the envelope deployment direction is orthogonal to the envelope deployment direction. It is set to be 20% or more of the length R of the second component paper 109 in the direction SD. Here, as described above, the water glue is supplied with water by the hydration mechanism 99 during the folding of the envelope paper P2 by the envelope forming portion 85, so that the adhesive force is exerted at a pressure lower than that of the pressure sensitive adhesive. It has become.

  Notches toward the direction SD perpendicular to the envelope deployment direction at both ends of the third component paper 113 in the direction SD perpendicular to the envelope deployment direction and extending in the extending direction of the coating portions 119 and 121. Portions 128 and 130 are formed. That is, the notches 128 and 130 are formed so as to have end portions parallel to the rotation axis of each roller. Accordingly, the paper feed roller 27 of the envelope paper feed unit 23, the main folding roller 75 of the front folding unit 73, the introduction roller 77, and the like can be easily bitten, and the envelope paper P2 can be stably conveyed.

  Chamfers 124 and 126 are formed at the corners of the third component paper 113 at the end portions of the envelope development direction ED direction and the direction SD perpendicular to the envelope development direction, respectively. Further, the length W1 of each chamfer 124, 126 in the envelope deployment direction ED direction is provided so that the envelope paper P2 contacts the paper fence so that the envelope paper P2 is placed at an appropriate position on the paper feed tray 17. Yes.

  FIG. 5 is a view showing a state where the envelope paper P <b> 2 according to the embodiment of the present invention is placed on the paper feed tray 17.

  As shown in FIG. 5, the envelope deployment direction (envelope transport direction) ED is placed on the paper feed tray 17 so that the envelope paper P2 placed on the paper feed tray 17 is properly carried out in the envelope deployment direction (envelope transport direction) ED. A pair of paper fences 18 are provided for guiding along.

  The envelope paper P2 is chamfered so that both ends in the direction SD perpendicular to the envelope unfolding direction are in contact with the pair of paper fences 18 in a state of being placed on the paper feed tray 17. . Specifically, the lengths of the chamfers 124 and 126 in the envelope deployment direction ED direction so that at least the side end straight portions X1 at both ends in the direction SD orthogonal to the envelope deployment direction are in contact with the pair of paper fences 18. W1 is set. Similarly to the chamfers 124 and 126, the chamfers 129 and 131 are also chamfered so that both ends of the pair of paper fences 18 in the direction SD perpendicular to the envelope deployment direction are in contact with each other.

  As described above, the chamfers 124 and 126 are formed at the corners of the third constituent paper 113 in the envelope developing direction ED direction and the end of the direction SD orthogonal to the envelope developing direction, respectively, and therefore the envelope paper P2 Is easily sucked onto the platen belt 14 by a suction fan installed in the platen belt 14, and warping of the corners can be prevented. Thereby, generation | occurrence | production of paper jam can be prevented.

  Furthermore, since the chamfer is formed so that both ends of the direction SD perpendicular to the envelope deployment direction are in contact with the pair of paper fences 18, the envelope paper P2 is guided to the pair of paper fences 18, Appropriately, the sheet is conveyed in the envelope developing direction (envelope conveying direction) ED.

  FIG. 6 is a view showing a state in which the envelope paper P <b> 2 according to the embodiment of the present invention is conveyed from the paper feed tray 17.

  As shown in FIG. 6, the envelope paper P <b> 2 conveyed from the paper feed tray 17 in the envelope developing direction (envelope conveyance direction) is abutted against the registration roller 30. As a result, the envelope paper P2 is slackened, and by this slackness, the leading edge of the envelope paper P2 is aligned and skewed, and then conveyed toward the printing unit 9 at a predetermined timing.

  The registration roller 30 includes rollers 30a to 30f provided in a comb shape in a direction SD orthogonal to the envelope unfolding direction. Each roller differs depending on the size of the paper. For example, the rollers 30a and 30f are a pair of rollers for correcting skew feeding of A3 size paper, and the rollers 30b and 30e are a pair of rollers for correcting skew feeding of A4 size and envelope size paper. The rollers 30c and 30d are a pair of rollers for correcting skew feeding of a postcard size paper.

  Therefore, the envelope paper P2 is orthogonal to the envelope conveyance direction so that the envelope paper P2 is abutted against the rollers 30b and 30e to correct skewing, that is, the end of the envelope development direction ED contacts the rollers 30b and 30e. A straight line portion is formed in the direction SD.

  Further, chamfers 125 and 127 are formed at corners that are ends in the envelope deployment direction ED and the direction SD perpendicular to the envelope deployment direction, respectively. Specifically, at the end of the envelope developing direction ED, at least the front end straight portion Y in the direction SD perpendicular to the envelope conveying direction is in contact with the roller 30b or the roller 30e (so that only the Y1 portion overlaps), The length W2 of the direction SD orthogonal to the envelope deployment direction of the chamfers 125 and 127 is set.

  As described above, the chamfers 125 and 127 are formed at the corners of the third component paper 113 at the ends of the direction SD perpendicular to the envelope developing direction, so that the envelope paper P2 is placed in the platen belt 14. The sucked fan is easily sucked onto the platen belt 14 to prevent warping of the corners. Thereby, generation | occurrence | production of paper jam can be prevented.

  Further, since the chamfers 125 and 127 are formed so that the end portions in the envelope developing direction ED are in contact with the rollers 30b and 30e, the envelope paper P2 conveyed and abutted against the rollers 30b and 30e is loosened. Due to this slackness, the leading edge of the envelope paper P2 is aligned and skewed, and then conveyed to the printing unit 9 at an appropriate position at a predetermined timing.

  Next, the operation and effect of the envelope paper according to an embodiment of the present invention will be described.

  FIG. 7 is a diagram for explaining the operation and effect of the envelope paper according to an embodiment of the present invention. FIG. 7 shows a state where the envelope paper P <b> 2 is abutted against the registration roller 30.

  As shown in FIG. 7, the envelope paper P <b> 2 transported through the paper feed transport path 29 of the image forming apparatus 3 is abutted against the rollers 30 b and 30 e. At this time, the envelope paper P2 is placed so that the end in the envelope development direction ED contacts the rollers 30b and 30e at the corners which are the ends in the envelope development direction ED and the direction SD orthogonal to the envelope development direction. Chamfers 125 and 127 are formed so that the leading edge of the paper P2 is nipped by the rollers 30b and 30e. In addition, since the length W2 of the direction SD perpendicular to the envelope deployment direction of each chamfer 125, 127 is set so that the tip straight portion Y contacts the roller 30b or the roller 30e, Both ends, that is, the corner formed by the tip straight portion Y and the chamfer 125 and the corner formed by the tip straight portion Y and the chamfer 127 are nipped by the roller 30b or the roller 30e, respectively.

  As described above, when the envelope paper P2 is nipped by the rollers 30b and 30e, as shown in FIG. 7, the third component paper 113 is loosened, and this looseness causes the envelope conveyance direction of the envelope paper P2 to be the registration roller. The leading edge of the envelope paper P2 is aligned and skewed so as to be perpendicular to the 30 rotation axis.

  As described above, according to the envelope paper P2 which is an embodiment of the present invention, the leading edge of the envelope developing direction (envelope transport direction) ED is abutted against the rollers 30b and 30e so that skew correction is performed. The tip straight portion Y is formed in a direction orthogonal to the envelope transport direction of the tip, and chamfers 125 and 127 are formed at corners that are ends in the direction orthogonal to the envelope transport direction. Since both ends are formed so as to be nipped by rollers 30b and 30e provided in a comb-like shape, the envelope paper P2 abutted against the rollers 30b and 30e is loosened. The tip is aligned and skewed, and transported in an appropriate orientation. Further, not only chamfers 125 and 127 are formed at corners which are ends in a direction orthogonal to the envelope conveying direction, but both ends of the leading end straight portion Y are nipped with rollers 30b and 30e provided in a comb shape. By being formed as described above, the corner where the warpage is likely to occur is nipped, so that it can be properly conveyed without colliding with the ink jet head or causing problems such as defective printing.

  Further, according to the envelope paper P2 which is an embodiment of the present invention, when the leading end is aligned and placed on the paper feed tray 17 that picks up and feeds one by one, the envelope unfolding direction on the paper feed tray 17 (Envelope transport direction) Since the chamfers 124 and 126 are formed so that the side end straight portion X1 in the direction orthogonal to the envelope transport direction contacts the pair of paper fences 18 provided along the ED. The envelope paper P2 is guided to the pair of paper fences 18 and appropriately conveyed in the envelope developing direction (envelope conveyance direction) ED.

DESCRIPTION OF SYMBOLS 1 ... Encapsulation sealing system 3 ... Image forming apparatus 5 ... Encapsulation sealing apparatus 9 ... Printing part 11A, 11B, 11C, 11D ... Ink head 13 ... Printing conveyance path 14 ... Platen belt 15 ... Contents paper feeding part 17 ... Paper feeding Tray 18 ... Paper fence 19 ... Feed roller 21 ... Feed transport path 23 ... Envelope paper feed section 25 ... Feed tray 27 ... Feed roller 29 ... Feed transport path 30 ... Registration rollers 30a-30f ... Roller 41 ... Enclosed sealing device housing 43 ... Introduction conveyance path 45 ... Content paper conveyance path 47 ... Envelope paper conveyance path 49 ... Envelope conveyance path 51 ... Alignment part 55 ... Content formation part 73 ... Pre-folding part 74, 76 ... Conveying roller 74a , 76a ... Driving roller 74b, 76b ... Follower roller 75 ... Main folding roller 77 ... Introducing roller 83 ... Deriving roller 85 ... Envelope forming part 86 ... Sealing part 87 ... Main folding Roller 89 ... Introduction roller 99 ... Hydration mechanism 107 ... First component paper 109 ... Second component paper 113 ... Third component paper 117 ... Flap portion 119, 121 ... Coating portion 123 ... Adhesive coating portion 124,126 ... Surface Chamfer 125, 127 ... Chamfer 128, 130 ... Notch 129, 131 ... Chamfer

Claims (2)

In an encapsulating and sealing system, an envelope paper that is nipped and encapsulated while being conveyed in the envelope conveying direction by being nipped by a conveying roller provided in a comb-teeth shape,
A front end straight portion is formed in a direction orthogonal to the envelope transport direction of the front end portion so that the front end portion in the envelope transport direction is abutted against the transport roller and skew correction is performed, and in the envelope transport direction A chamfered portion is formed at a corner that is an end portion in an orthogonal direction, and both ends of the straight end portion of the tip are formed so as to be nipped by the conveying rollers provided in the comb teeth shape. Envelope paper to be used. When the front end is aligned and placed on a paper feed table that picks up and feeds one by one, the envelope against a pair of paper fences provided on the paper feed table along the envelope conveying direction The envelope paper according to claim 1, wherein the chamfered portion is formed so that a side end straight portion in a direction orthogonal to the transport direction is in contact.

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