JP6281464B2 - Film roll and packaging device - Google Patents

Description

  The present invention relates to a film roll around which a film is wound and a packaging device that supports the film roll.

  Conventionally, a film roll mounted on a packaging device is known. The packaging apparatus is an apparatus that wraps an article placed on a pedestal together with a pedestal using a film. A film is wound around the film roll. For example, a film roll attached to a packaging device disclosed in Patent Document 1 is accommodated in a cassette case. The packaging device includes a pair of side plate portions disposed to face each other with a gap therebetween. Before the packaging apparatus starts packaging an article, the user holds a cassette case in which a film roll is accommodated and attaches the cassette case to each upper portion of the pair of side plate portions.

JP2013-233966A

  However, depending on the part of the cassette case to be held, the user may have difficulty mounting the film cassette on the packaging device.

  The objective of this invention is providing the packaging apparatus which supports the film roll which can make the attitude | position in the case of hold | maintaining into a predetermined attitude | position, and a film roll.

The film roll according to the first aspect of the present invention includes a core part on which an outer peripheral surface surrounding an axis serving as a rotation center is wound, a first connection part connected to one end part in the axial direction of the core part, A second connecting portion that is connected to the other end portion of the core portion opposite to the one end portion, and at least a part of the second connecting portion is disposed outside the core portion on the outer side of the outermost peripheral surface of the film. , Swingable with respect to each of the first connecting portion and the second connecting portion, and further capable of supporting each specific portion of the first connecting portion and the second connecting portion that are separated from the axis. And a handle.
The film roll according to the second aspect of the present invention includes a core portion around which the film is wound on an outer peripheral surface surrounding an axis serving as a rotation center, a first connecting portion that is connected to one end portion in the axial direction of the core portion, A second connecting portion that is connected to the other end portion of the core portion opposite to the one end portion, and at least a part of the second connecting portion is disposed outside the core portion on the outer side of the outermost peripheral surface of the film. , Swingable with respect to each of the first connecting portion and the second connecting portion, and further capable of supporting each specific portion of the first connecting portion and the second connecting portion that are separated from the axis. A handle, and the handle is flexible in a direction close to the axis and in a direction away from the axis.
The film roll according to the third aspect of the present invention is a core part around which an axis surrounding the axis serving as the rotation center is wound, a first connection part connected to one end part in the axial direction of the core part, A second connecting portion that is connected to the other end portion of the core portion opposite to the one end portion, and at least a part of the second connecting portion is disposed outside the core portion on the outer side of the outermost peripheral surface of the film. , Swingable with respect to each of the first connecting portion and the second connecting portion, and further capable of supporting each specific portion of the first connecting portion and the second connecting portion that are separated from the axis. A handle, provided at at least one of the first connecting portion and the second connecting portion, an end in a direction away from the axis is an open end, and the closer to the axis, the wider the groove width. A narrow groove is provided.

According to the first aspect, the second aspect, and the third aspect , when the user holds the handle and lifts the film roll, the handle has a specific part separated from the axis of the first connection part and the second connection part. To support. When the user holds the handle and lifts the film roll, the handle swings with respect to the first connecting portion, the second connecting portion, the core portion, and the film (hereinafter, these four are collectively referred to as a rotating portion). Move. Thereby, the lifted film roll is held in a posture (hereinafter referred to as “basic posture”) in which the axis is located directly below each specific part. Therefore, regardless of the posture of the film roll before being lifted, the lifted film roll is held in the basic posture. In addition, when the film roll is lifted, even if the rotating unit rotates about the axis, a restoring force that returns to the basic posture acts on the rotating unit. The rotating part immediately returns to the basic posture. Therefore, the lifted rotating part rotates around the axis, and the film is not pulled out. As described above, the film roll can be held in a predetermined posture when held.

In the packaging device according to the fourth aspect of the present invention, the film is wound around the outer peripheral surface surrounding the axis serving as the rotation center, and at least one of both end portions in the axial direction has an end in a direction away from the axis as an open end. A film roll provided with a groove whose groove width becomes narrower as it approaches the axis, and a support part that rotatably supports the axis extending in a horizontal direction, and a pedestal on which an article can be placed. A mounting table, and a packaging means for transporting the pedestal mounted on the mounting table substantially horizontally and wrapping the article together with the pedestal in the film of the film roll supported by a front support part, The support portion includes a protrusion portion that can enter the groove portion from the opening end to the inside of the groove portion. According to the fourth aspect, the packaging device has the same effect as the film roll.

It is a perspective view of packaging device 1 (state where case 800 was equipped). FIG. It is a perspective view of packaging device 1 (state which removed case 800). It is a perspective view near the upper end of the side plate portions 111 and 112. It is a perspective view of the film roll 22 with which the tooth | gear part 92D meshes | engages with the winding gear 652A. It is a perspective view of the film roll 22 of a basic posture. It is a cross-sectional view of the film roll 22 in the basic posture. 3 is a perspective view of a movable roller 30. FIG. It is a right view of the packaging apparatus 1 by which the support part 34 was arrange | positioned at the highest position. It is a right view of the packaging apparatus 1 by which the support part 34 was arrange | positioned at the lowest position. 4 is a perspective view of a pedestal guide roller 71, a holding roller 72, and a heating unit 86. FIG. 4 is a perspective view of the movable roller 30, a heating unit 86, and a rotation suppressing unit 80. FIG. It is explanatory drawing of the film roll 22 lifted from the container 5. FIG. It is explanatory drawing which the film roll 22 hold | maintains returns to a basic attitude. It is a state transition diagram of packaging device 1 at the time of packaging operation start. FIG. 16 is a state transition diagram of the packaging device 1 in the packaging operation following FIG. 15. FIG. 17 is a state transition diagram of the packaging device 1 in the packaging operation following FIG. 16. FIG. 18 is a state transition diagram of the packaging device 1 in the packaging operation following FIG. 17. FIG. 19 is a state transition diagram of the packaging device 1 in the packaging operation following FIG. 18. FIG. 20 is a state transition diagram of the packaging device 1 in the packaging operation following FIG. 19. It is a state transition diagram of the packaging apparatus 1 in a packaging operation following FIG. FIG. 22 is a state transition diagram of the packaging device 1 in the packaging operation following FIG. 21. It is a cross-sectional view of the film roll 122 which concerns on a modification.

  Embodiments of the present invention will be described below with reference to the drawings. The packaging device 1 wraps the article 3 by covering the article 3 placed on the base 2 such as a mount with a film 24 and fixing the article 3 to the base 2. Hereinafter, packaging the article 3 in this way is referred to as packaging the base 2 and the article 3. The packaging device 1 conveys the pedestal 2 on which the article 3 is placed substantially horizontally from the lower right side of FIG. 1 toward the upper left side, and wraps the pedestal 2 and the article 3. The upper side, the lower side, the left diagonally lower side, and the right diagonal upper side in FIG. 1 are referred to as the upper side, the lower side, the right side, and the left side of the packaging device 1, respectively. The diagonally lower right side and the diagonally upper left side in FIG. 1 are referred to as an upstream side and a downstream side in the transport direction, respectively. The upper side, the lower side, the upper left side, and the lower right side in FIG. 6 are respectively referred to as the upper side, the lower side, the right side, and the left side of the film roll 22 in the basic posture. The diagonally lower left side and the diagonally upper right side in FIG. 6 are the upstream side and the downstream side in the transport direction, respectively.

<Case 800>
As shown in FIG. 1, the packaging device 1 includes a housing 800. The shape of the housing 800 is a substantially rectangular parallelepiped whose longitudinal direction is the vertical direction. The housing 800 includes a lower housing 803 and an upper housing 801. The shape of the lower housing 803 is a substantially rectangular parallelepiped with the left-right direction as the longitudinal direction. An operation unit 206 for the user to instruct the packaging apparatus 1 to start or stop the packaging operation is provided in the lower casing 803.

  The upper housing 801 includes two standing portions 802 and a erection portion 810. The two standing portions 802 extend upward from both left and right end portions of the lower housing 803, respectively. The two standing portions 802 cover side plate portions 111 and 112 (see FIG. 2) described later from the right side and the left side, respectively.

  As shown in FIG. 2, the erection part 810 is a plate-like member that erections the upper parts of the two erection parts 802. The erection part 810 includes a bottom part 812, a right wall part 814, a left wall part 816, and a recess 818. The bottom surface portion 812 extends in the left-right direction between the two standing portions 802 and is curved in an arc shape downward. The right wall portion 814 stands upward from the right end portion of the bottom surface portion 812. An opening (not shown) provided in the right wall portion 814 exposes a mounting portion 141 (see FIG. 4) described later. The left wall portion 816 stands upward from the left end portion of the bottom surface portion 812. A film roll 22 described later is accommodated in a space surrounded by the bottom surface portion 812, the right wall portion 814, and the left wall portion 816 (hereinafter referred to as an accommodation portion 830).

  The recess 818 is formed at the upper right part of the left wall 816 and is recessed leftward. The concave portion 818 has a substantially semicircular shape that curves downward as viewed from the right side. The recess 818 has a lower end surface 818A, an upstream end surface 818B, a downstream end surface 818C, a left end surface 818D, and a protrusion 818E. The lower end surface 818A, the upstream end surface 818B, the downstream end surface 818C, and the left end surface 818D are the lower, upstream, downstream, and left surfaces of the recess 818, respectively. The lower end surface 818A extends linearly in the transport direction. The upstream end surface 818B extends upward from the upstream end of the lower end surface 818A, and the downstream end surface 818C extends upward from the downstream end. The upstream end surface 818B and the downstream end surface 818C face each other in the transport direction. The left end surface 818D connects the left end portions of the lower end surface 818A, the upstream end surface 818B, and the downstream end surface 818C. The left end surface 818D extends in the transport direction and the vertical direction. The protruding portion 818E is a substantially rectangular parallelepiped extending upward from a substantially central portion in the transport direction of the lower end surface 818A. The protrusion 818E is connected to the left end surface 818D in the vertical direction.

  On the upper part of the two standing portions 802, a lid portion 806 is provided. The lid portion 806 is a plate-like body that is pivotally supported by the downstream end portions of the two standing portions 802. The lid portion 806 is rotatable between an open position (see FIG. 1) for opening the storage portion 830 and a closed position (not shown) for closing the storage portion 830.

  As shown in FIG. 1, a space surrounded by the lower housing 803, the two standing portions 802, and the bottom surface portion 812 forms an internal space of the housing 800. The internal space of the housing 800 communicates with the outside of the housing 800 through openings 805 formed on the upstream side and the downstream side of the housing 800. The internal space of the housing 800 communicates with the housing portion 830 (see FIG. 2) through an opening (not shown) formed on the upstream side of the bottom surface portion 812.

<Mounting part 141>
As shown in FIG. 4, a mounting portion 141 is provided on the left side surface of the upper end portion of the side plate portion 111. The mounting portion 141 includes plate-like portions 141A, 141B, and 141C. The plate-like portion 141B extends to the left from the upstream side of the upper end portion of the side plate portion 111. The plate-like portion 141 </ b> C extends leftward from the downstream side of the upper end portion of the side plate portion 111. Each surface of the plate-like portions 141B and 141C faces the transport direction. The plate-like portion 141A is constructed between the left ends of the plate-like portions 141B and 141C. Each surface of the plate-like portion 141A faces in the left-right direction.

  A concave portion 141D that is recessed downward is provided at the upper end of the plate-shaped portion 141A. The recess 141D has end surfaces 1411, 1412, and 1413. The end surfaces 1411, 1412, and 1413 are surfaces on the lower side, the upstream side, and the downstream side of the recess 141D, respectively. The end surface 1411 extends linearly in the transport direction. The end surfaces 1412 and 1413 extend linearly in the vertical direction. The length in the conveyance direction of the end surface 1411 is longer than the length in the vertical direction of the end surfaces 1412 and 1413.

  An erection plate 117 </ b> A is erected between the side plate parts 111 and 112. The shape of the erection plate 117A is a plate shape. The erection plate 117A extends horizontally. The erection plate 117A supports the bottom surface part 812 (see FIG. 2) of the erection part 810 from below. The erection plate 117B is provided upstream of the upstream end of the erection plate 117A. The installation plate 117 </ b> B is installed between the side plate portions 111 and 112. The construction plate 117C extends upward from the downstream end of the construction plate 117A.

  The film 24 (see FIG. 5) fed out from the film roll 22 attached to the attachment portion 141 passes through the gap between the upstream end of the installation plate 117A and the installation plate 117B, and the internal space of the housing 800. It is discharged down to. When the pedestal 2 on which the article 3 is placed is conveyed from the upstream side toward the downstream side in the internal space of the housing 800, the pedestal 2 is packaged by the film 24.

<Film motor 227>
As shown in FIG. 4, the film motor 227 is provided on the left side of the plate-like portion 141A of the mounting portion 141 and on the upstream side of the construction plate 117C. The rotating shaft of the film motor 227 extends horizontally to the right and is inserted into a hole provided in the plate-like portion 141A. The right end of the rotating shaft protrudes to the right side from the plate-like portion 141A. A gear 670 (see FIG. 5 and the like) is fixed to the right end of the rotation shaft of the film motor 227.

  As shown in FIG. 5, the upper gear group 652 is disposed on the downstream side of the recess 141 </ b> D (see FIG. 4). Upper gear group 652 includes a plurality of gears. A plate-like member 15 is provided on the right side of the upper gear group 652. The plate-like member 15 rotatably supports each gear included in the upper gear group 652 between the plate-like portion 141A. Upper gear group 652 includes a take-up gear 652A and a connecting gear 652B. The winding gear 652A is arranged on the right side of the right side surface of the plate-like portion 141A. The connection gear 652B is disposed on the right side of the winding gear 652A. The connection gear 652B meshes with the take-up gear 652A.

A lower gear group 653 is disposed below the upper gear group 652. Lower gear group 653 includes a plurality of gears and is coupled to gear 670 of film motor 227. A plate-like member 16 is provided on the right side of the lower gear group 653. The plate-like member 16 rotatably supports each gear included in the lower gear group 653 between the plate-like portion 141A. Lower gear group 653 includes gear 653A.
The gear 653A is disposed on the right side of the upper part of the left side surface of the plate-like member 16. The gear 653A is located on the downstream side of the connecting gear 652B. The gear 653A can swing between the separation position and the meshing position around the rotation shaft 681 supported by the plate-like member 16 and the plate-like portion 141A. The separation position is a position where the gear 653A is separated from the connection gear 652B to the downstream side. The meshing position is a position where the gear 653A meshes with the connection gear 652B. When the gear 653A is in the meshing position, the lower gear group 653 and the upper gear group 652 are connected.

  A solenoid (not shown) is provided on the upstream side of the plate-like member 16. The solenoid can swing the gear 653A. The solenoid swings the gear 653A to the separation position when the solenoid is in a non-energized state, which is not energized, and swings the gear 653A to the meshing position when it is energized, which is the energized state.

<Film roll 22>
The film roll 22 will be described with reference to FIGS. The film roll 22 is a rotating body around which the film 24 is wound, and is accommodated in the accommodating portion 830 (see FIG. 2). In FIG. 5, the right cylindrical portion 286 and the handle 25 described later are not shown. 7 is a cross-sectional view in the direction of arrows BB in FIG.

  As shown in FIG. 7, the film roll 22 includes a core portion 29, a film 24, a right mounting portion 92, a right cylindrical portion 286, a left cylindrical portion 281, a left mounting portion 96, and a handle 25. The core portion 29 is a cylindrical body that extends along the axis P serving as a rotation center. The core portion 29 includes a through hole 29A on the inner side. The through hole 29 </ b> A is a cylindrical hole of the core portion 29. The axis P passes through the center of the through hole 29A. Hereinafter, the direction in which the axis P extends is referred to as the axial direction. The axial direction is the left-right direction of the film roll 22. In the following description, the left end portion and the right end portion of the core portion 29 may be referred to as one end portion and the other end portion of the core portion 29, respectively.

  The film 24 is made of, for example, a transparent resin, and is wound around the outer peripheral surface 29 </ b> B of the core portion 29. The length of the film 24 in the left-right direction is substantially equal to the length of the core portion 29 in the left-right direction. The film 24 is placed on the bottom surface portion 812 (see FIG. 3).

  The right mounting portion 92 has a substantially cylindrical shape extending in the axial direction, and is mounted on the right end portion of the core portion 29. The right mounting portion 92 is mounted in the recess 141D (see FIG. 4), and movement along the transport direction is restricted. The right mounting portion 92 includes a cylindrical portion 92A and a gear portion 92B. The cylindrical portion 92A extends in the axial direction. The outer diameter of the cylindrical portion 92A is substantially equal to the inner diameter of the through hole 29A. The cylindrical portion 92A is fitted into the through hole 29A, and the right mounting portion 92 is fixed to the right end portion of the core portion 29. The right mounting portion 92 can rotate integrally with the core portion 29 about the axis P.

  The gear portion 92B is a substantially circular plate-like member connected to the right end portion of the cylindrical portion 92A in a right side view. A fitting hole 92C is formed at the center of the gear portion 92B. The fitting hole 92C penetrates the gear portion 92B in the axial direction. A tooth portion 92D (see FIG. 5) extending in the circumferential direction is formed on the outer peripheral surface of the gear portion 92B. The tooth portion 92D meshes with the take-up gear 652A (see FIG. 5). The number of teeth of the tooth portion 92D is larger than the number of teeth of the winding gear 652A.

  The right cylindrical portion 286 has a substantially bottomed cylindrical shape extending in the axial direction. The right part of the right cylindrical part 286 is open. The outer diameter of the right cylindrical portion 286 is substantially equal to the inner diameter of the fitting hole 92C. The right cylindrical portion 286 is fitted into the fitting hole 92C of the gear portion 92B. That is, the right cylindrical portion 286 is connected to the other end portion of the core portion 29 via the right mounting portion 92.

  The right cylindrical portion 286 includes a wall portion 286A. The wall portion 286A is a wall portion that forms the left end portion of the right cylindrical portion 286. A circular hole 286B is formed in the wall 286A in a side view. The hole 286B penetrates the wall 286A at a position away from the axis P. The hole portion 286B communicates with the through hole 29A in the axial direction through the cylindrical hole of the cylindrical portion 92A of the right mounting portion 92. The hole 286B is surrounded by the inner peripheral surface 286C. The left end portion of the shaft portion 280 extending in the axial direction is connected to the left side surface of the wall portion 286A. The shaft portion 280 is formed integrally with the wall portion 286A and is inserted through the through hole 29A.

  The left cylindrical portion 281 is formed integrally with the left end portion of the shaft portion 280 and extends in the axial direction. The right part of the left cylindrical part 281 has a larger diameter than the left part. The outer diameter of the right portion of the left cylindrical portion 281 is substantially equal to the inner diameter of the through hole 29A. The right portion of the left cylindrical portion 281 is fitted in the through hole 29 </ b> A, and the left cylindrical portion 281 is fixed to one end portion of the core portion 29.

  As shown in FIG. 6, the left mounting portion 96 is connected to the left portion of the left cylindrical portion 281 and is mounted in the recess 818 (see FIG. 3). The left mounting part 96 includes a base part 96A. The base portion 96A is a substantially circular wall portion centering on the axis P when viewed from the left side. The right portion of the base portion 96 </ b> A is rotatably fitted in the left cylindrical hole of the left cylindrical portion 281. That is, the left mounting portion 96 is connected to one end portion of the core portion 29 via the left cylindrical portion 281. When a load greater than or equal to a predetermined value (hereinafter referred to as a predetermined load) is generated between the base portion 96A and the left cylindrical portion 281 in opposite directions around the axis P, the left cylindrical portion 281 rotates with respect to the base portion 96A. To do. That is, the core portion 29, the film 24, the right mounting portion 92, the right cylindrical portion 286, the shaft portion 280, and the left cylindrical portion 281 (hereinafter, these members are collectively referred to as the rotating body 99) are attached to the base portion 96A. It can rotate with respect to it.

  The base portion 96A includes a pair of flat surfaces 96B. The pair of flat surfaces 96B form part of the outer peripheral surface in the left portion of the base portion 96A. The pair of planes 96B extend in parallel with each other with the axis P therebetween. The facing distance between the pair of flat surfaces 96B is slightly shorter than the facing distance between the upstream end surface 818B and the downstream end surface 818C of the recess 818 (see FIG. 3). Hereinafter, a direction orthogonal to the pair of planes 96B is referred to as a facing direction.

  The base 96A is formed with a circular hole 96C in a side view. The hole portion 96C passes through the base body portion 96A at a position that is orthogonal to the axial direction and the opposing direction and is separated from the axial line P, and communicates with the through hole 29A in the axial direction through the cylindrical hole of the left cylindrical portion 281 (see FIG. 7). The inner diameter of the hole 96C is smaller than the inner diameter of the hole 286B. The hole 96C is surrounded by the inner peripheral surface 96D.

  A groove portion 155 is formed in a portion of the base portion 96A opposite to the hole portion 96C across the axis P. The groove portion 155 is formed by cutting a portion of the outer peripheral surface of the left portion of the base portion 96 </ b> A opposite to the hole portion 96 </ b> C with respect to the axis line P toward the axis line P. The depth direction of the groove portion 155 is substantially parallel to the axial direction. The width direction of the groove portion 155 is substantially parallel to the facing direction. Of the groove portion 155, the end on the side away from the core portion 29 along the axis P and the end in the direction away from the axis P are open ends. The length of the groove portion 155 in the direction orthogonal to the axial direction is substantially equal to the length in the vertical direction of the protrusion 818E.

  The groove portion 155 includes a pair of side wall portions 156 and a contact wall 154. The pair of side wall portions 156 are wall portions facing in the facing direction. The pair of side wall portions 156 includes a first guide wall 156A and a second guide wall 156B, respectively. The first guide wall 156A forms a portion of the side wall portion 156 on the side away from the axis P. The closer the pair of first guide walls 156A to the axis P, the closer to each other. In other words, the portion of the groove portion 155 on the side away from the axis P has a shape in which the groove width becomes narrower as it approaches the axis P.

  The second guide wall 156B extends from a portion close to the axis P of the first guide wall 156A in a direction close to the axis P perpendicular to the axial direction and the opposing direction. The pair of second guide walls 156B extend in parallel to each other. The facing distance between the pair of second guide walls 156B is slightly longer than the length of the protruding portion 818E (see FIG. 2) in the transport direction. The contact wall 154 connects the ends of the pair of second guide walls 156B on the side close to the axis P.

  Inside the groove 155, the protrusion 818E (see FIG. 2) of the recess 818 enters. Specifically, the abutting wall 154 of the groove portion 155 abuts on the upper surface of the protrusion 818E, and the end portions in the direction away from the axis P of the pair of first guide walls 156A abut on the lower end surface 818A, respectively. The second guide walls 156B are in contact with both side surfaces of the projecting portion 818E in the transport direction. As a result, the left mounting portion 96 is mounted in the recess 818, and the rotation about the axis P and the movement along the transport direction are restricted.

  The handle 25 will be described with reference to FIGS. The handle 25 is a member to be gripped by the user when the film roll 22 is lifted. The handle 25 is formed in a flat plate shape and a loop shape. The width of the handle 25 is slightly smaller than the inner diameter of the hole 96C. The handle 25 is inserted through the hole 96C, the through hole 29A, and the hole 286B, and surrounds the film 24 from the outside. That is, the handle 25 surrounds a part of the core portion 29 in the circumferential direction.

  The handle 25 includes a gripping portion 25A and an insertion portion 25B. The grip portion 25A is disposed outside the outermost peripheral surface of the film 24 and extends along the axial direction. The insertion part 25B extends along the axial direction inside the hole part 96C, the through hole 29A, and the hole part 286B. The right end portion of the insertion portion 25B can support the upper portion of the inner peripheral surface 286C of the hole portion 286B from the lower side. The left end portion of the insertion portion 25B can support the upper portion of the inner peripheral surface 96D of the hole portion 96C from the lower side. The insertion portion 25B can swing with respect to the holes 96C and 286B.

  The handle 25 is made of, for example, a synthetic resin. The material of the handle 25 in this embodiment is polypropylene as an example. Since the handle 25 is made of polypropylene, it can exhibit high strength while having flexibility in the direction of approaching and separating in the axial direction.

  Since the film roll 22 configured as described above can rotate around the axis P, the film roll 22 changes to various postures. Among these, the posture of the film roll 22 shown in FIGS. 6 and 7 is referred to as a basic posture. The basic posture is the posture of the film roll 22 immediately before being attached to the packaging device 1. When the film roll 22 is in the basic posture, the axis P extends in the horizontal direction, the holes 96C and 286B are positioned above the axis P, and the grip 25A of the handle 25 is positioned above the upper end of the film 24. The opening end of the groove portion 155 that becomes the basic posture in the direction away from the axis P faces downward. Further, in a posture where the axial direction is parallel to the horizontal direction, the position of the center of gravity of the film roll 22 substantially coincides with the axial line P in a side view.

<Receivers 12, 13>
As shown in FIG. 1, the cradle 12 extends in the horizontal direction from the upper end of the upstream side surface of the lower housing 803 toward the upstream side. The cradle 13 extends in the horizontal direction from the upper end of the downstream side surface of the lower housing 803 toward the downstream side. The shapes of the cradles 12 and 13 are box-like shapes that are substantially rectangular in plan view with the conveying direction as the longitudinal direction. The cradle 12 receives the pedestal 2 conveyed toward the opening 805 on the upper surface. The cradle 13 receives the pedestal 2 and the article 3 whose packaging has been completed on the upper surface. The leg portions 121 and 131 support the cradle 12 and 13 from below.

  The upper surface of the cradle 12 is referred to as a receiving surface 12A, and the upper surface of the cradle 13 is referred to as a receiving surface 13A. The receiving surfaces 12A and 13A are horizontal and form substantially the same plane. Therefore, the receiving surfaces 12A and 13A are flat surfaces that can smoothly convey the base 2. A portion where the base 2 is transported on the receiving surfaces 12A and 13A is referred to as a transport path 103 (see FIG. 9 and the like).

  As shown in FIG. 3, the packaging device 1 includes a bottom portion 10 and side plate portions 111 and 112. The shape of the bottom 10 is a rectangular shape in plan view. The side plate portion 111 extends in the upward vertical direction from the right end portion of the bottom portion 10. The side plate portion 112 extends in the upward vertical direction from the left end portion of the bottom portion 10. Each shape of the side plate portions 111 and 112 is a substantially rectangular plate shape whose longitudinal direction is the vertical direction. The inner surfaces of the side plate portions 111 and 112 face each other. The cradle 12 is supported by end portions on the upstream side of the side plate portions 111 and 112. The cradle 13 is supported by the downstream ends of the side plate portions 111 and 112.

<Belt 511, 512>
Endless belts 511 and 512 are provided at the right and left ends of the cradles 12 and 13, respectively. Each of the belts 511 and 512 has teeth on the inner surface. The belt 511 is bridged between a pulley (not shown) provided on the upstream side of the right part of the cradle 12 and a pulley (not shown) provided on the downstream side of the right part of the cradle 13. Similarly, the belt 512 is bridged between a pulley (not shown) provided on the upstream side of the left part of the cradle 12 and a pulley (not shown) provided on the downstream side of the left part of the cradle 13. . The two pulleys provided on the cradle 13 are each connected to a transport motor (not shown). The transport motor is provided inside the cradle 13. When the transport motor is driven, the belts 511 and 512 can rotate clockwise and counterclockwise in a side view.

  Portions of the outer surfaces of the belts 511 and 512 facing upward are exposed to the receiving surfaces 12A and 13A and extend in the transport direction. An attachment / detachment portion 60 is provided on the outer side surface of each of the belts 511 and 512. The detachable part 60 includes a right detachable part 61 provided on the belt 511 and a left detachable part 62 provided on the belt 512. The right attaching / detaching portion 61 and the left attaching / detaching portion 62 face each other in the left-right direction. The right attachment / detachment portion 61 and the left attachment / detachment portion 62 are arranged at predetermined equal intervals along the rotation direction of the belts 511 and 512, respectively. Note that FIG. 3 illustrates a part of the right attach / detach section 61 and the left attach / detach section 62 that are respectively provided. When the transport motor is driven, the belts 511 and 512 rotate counterclockwise when viewed from the right side. Accordingly, the detachable unit 60 conveys the pedestal 2 from the upstream side to the downstream side, as will be described later.

<Movable roller 30>
As shown in FIG. 3, a carriage 349 that is driven by the rotation of the carriage motor 221 is provided on the right side surface of the side plate portion 111. The carriage 349 is connected to a support portion 341 (see FIG. 8). A carriage 350 is provided on the left side surface of the side plate portion 112. The carriage 350 is connected to a support portion 342 (see FIG. 8).

  As shown in FIG. 8, the support portions 341 and 342 are collectively referred to as the support portion 34. The guide roller 31, the first auxiliary roller 32, and the second auxiliary roller 33 are collectively referred to as a movable roller 30. The movable roller 30 is a cylindrical body extending in the left-right direction. The length in the left-right direction of the movable roller 30 is substantially the same as the length in the left-right direction of the cradles 12 and 13 (see FIG. 2). The support portion 34 rotatably supports the left and right end portions of the movable roller 30.

  The support part 34 is a plate-like member having a substantially inverted L shape when viewed from the right side. The guide roller 31 is supported at the downstream end portion of the support portion 34. The first auxiliary roller 32 is supported by the support portion 34 slightly upstream from the guide roller 31. The second auxiliary roller 33 is supported by the support portion 34 on the upstream side and the upper side of the first auxiliary roller 32. That is, the guide roller 31, the first auxiliary roller 32, and the second auxiliary roller 33 are arranged in order from the downstream side to the upstream side.

  The carriage motor 221 (see FIG. 3) can move the support portion 34 that supports the movable roller 30 in the vertical direction via carriages 349 and 350 (see FIG. 3). FIG. 9 shows a state in which the support portion 34 is disposed at the uppermost position. In this state, a portion extending in the vertical direction of the support portion 34 is disposed in the vicinity of the upstream side of the film roll 22. A portion extending in the transport direction of the support portion 34 is disposed below the film roll 22. The movable roller 30 is disposed below the film roll 22. In FIG. 9, the casing 800, the bottom portion 10, and the side plate portions 111 and 112 are not shown (the same applies to FIG. 10).

  FIG. 10 shows a state in which the support portion 34 is disposed at the lowest position. In this state, a portion of the support portion 34 that extends in the transport direction is disposed below the transport path 103. A movement path of the guide roller 31 accompanying the movement of the support portion 34 is referred to as a movement path 104. When the guide roller 31 moves to the lowest position along the movement path 104, the guide roller 31 is disposed below the conveyance path 103. A position where the conveyance path 103 and the movement path 104 intersect is referred to as an intersection position 105.

<Cutting part 77>
As shown in FIGS. 9 to 11, a guide rail 74 extending in the left-right direction is provided below the intersection position 105. The guide rail 74 extends to the right side of the belt 511 and extends to the left side of the belt 512. The cutting part 77 is connected to the upstream side of the guide rail 74 and is movable along the guide rail 74. The cutting portion 77 includes a blade portion 771 that protrudes upward and extends in the left-right direction. A cutting unit motor (not shown) moves the cutting unit 77 in the left-right direction along the guide rail 74.

  As shown in FIG. 10, when the support portion 34 is disposed at the lowest position, the guide roller 31 is disposed above the guide rail 74. A blade portion 771 extending upward from the cutting portion 77 is disposed between the guide roller 31 and the first auxiliary roller 32. In this state, when the cutting part 77 is moved in the left-right direction, the blade part 771 can cut the film 24 supplied from the film roll 22 in the width direction (left-right direction).

<Pedestal guide roller 71, holding roller 72, heating unit 86, rotation suppressing unit 80>
As shown in FIGS. 9 to 11, a pedestal guide roller 71 extending in the left-right direction is provided on the upstream side of the portion sandwiched between the side plate portions 111 and 112 (see FIG. 2) and on the lower side of the conveyance path 103. The pedestal guide roller 71 contacts the conveyance path 103 from below. The pedestal guide roller 71 supports the pedestal 2 (see FIG. 1) transported from the upstream side to the downstream side along the transport path 103 from below between the cradles 12 and 13, and from the cradle 12 to the cradle 13. Induce. As shown in FIG. 10, when the support portion 34 is disposed at the lowest position, the second auxiliary roller 33 is disposed near the upper portion of the pedestal guide roller 71.

  A holding roller 72 extending in the left-right direction is provided on the downstream side of the pedestal guide roller 71. The left and right end portions of the holding roller 72 are rotatably supported by the holding portion 78. The holding portion 78 can swing around a shaft extending in the left-right direction provided below the pedestal guide roller 71. The holding part 78 is swung by a holding part motor (not shown). The state in which the holding roller 72 is close to the downstream side of the pedestal guide roller 71 (see FIG. 15) and the state in which the holding roller 72 is separated downward from the pedestal guide roller 71 by the swinging of the holding unit 78 (see FIGS. 9 and 10). To see). When the holding roller 72 comes close to the downstream side of the pedestal guide roller 71, the holding roller 72 contacts the conveyance path 103 from the lower side (see FIG. 15). At this time, the film 24 supplied from the film roll 22 is sandwiched between the holding roller 72 and the pedestal guide roller 71.

  As shown in FIGS. 11 and 12, a heating unit 86 is provided in the vicinity of the downstream side of the holding roller 72. The heating unit 86 includes three heating units at the upper end. The heating unit includes a heater 871 on the upper surface. The heater 871 can heat the film 24 in contact with the film 24. As the heating unit motor (not shown) rotates, the heating unit 86 moves in the vertical direction. With the heating unit 86 disposed at the top (see FIG. 11), the upper surfaces of the three heating units are close to the transport path 103 (see FIGS. 9 and 10). The upper surface of each of the three heating units is separated from the conveyance path 103 in a state where the heating unit 86 moves and is disposed at the lowest position (see FIGS. 9 and 10).

  A rotation suppression unit 80 is provided on the downstream side of the heating unit 86. The rotation suppression unit 80 includes a cam 851, two support bars 82, and a stopper 81. The two support bars 82 extend in the transport direction. The stopper 81 is provided at the upstream end of each of the two support rods 82 and extends in the left-right direction. The shape of the stopper 81 is a bar shape having a square cross-sectional shape. Rubber is provided on the upstream surface of the stopper 81. When a cam motor (not shown) rotates the cam 851, the two support bars 82 move in the transport direction, and the stopper 81 also moves in the transport direction.

  In FIG. 12, the support portion 34 is disposed at the lowest position, the pedestal guide roller 71 (see FIG. 10) and the holding roller 72 are close to each other, the heating portion 86 is disposed at the uppermost position, and the stopper 81 is disposed on the upstream side. Indicates the state. The stopper 81 is disposed at a position where it can contact the guide roller 31. The rubber of the stopper 81 pushes the guide roller 31 upstream. Thereby, the rotation of the guide roller 31 is restricted. The heating unit 86 projects upward between the first auxiliary roller 32 and the holding roller 72.

<Pedestal 2>
The pedestal 2 will be described with reference to FIG. The pedestal 2 is produced by bending a substantially rectangular plate-shaped portion 90 with bent portions 911 and 912. The bent portions 911 and 912 are folds extending in the transport direction and arranged at intervals in the left-right direction. A portion sandwiched between the bent portions 911 and 912 in the plate-like portion 90 is referred to as a first plate-like portion 905. A portion of the plate-like portion 90 that stands up from the bent portion 911 is referred to as a second plate-like portion 906. A portion of the plate-like portion 90 that stands from the bent portion 912 is referred to as a second plate-like portion 907. The first plate-like portion 905 has a plurality of holes 927 formed at equal intervals along the bent portions 911 and 912. The plurality of holes 927 formed in the bent portion 911 are aligned in the left-right direction with any of the plurality of holes 927 formed in the bent portion 912, respectively.

  Each of the plurality of holes 927 can be attached with the detachable portion 60. Specifically, as shown in FIG. 1, when the user places the pedestal 2 on the cradle 12, the detachable portions 60 are respectively placed in the pair of holes 927 on the downstream side in the transport direction among the plurality of holes 927. Install. Thereby, the detachable part 60 attached to the pair of holes 927 can transport the base 2 to the downstream side in the transport direction.

<Preparation>
With reference to FIG. 13, FIG. 14, the preparation which a user performs before performing packaging apparatus 1 packaging operation | movement is demonstrated. As a preparation, the user causes the film roll 22 to be attached to the packaging device 1 according to the following procedure. In addition, in FIG. 13, only the bottom face part of the container 5 mentioned later is illustrated conceptually. The lid 806 (see FIG. 1) is located in the open position, and the packaging device 1 is not turned on.

  The film roll 22 before being mounted on the packaging device 1 is stored, for example, in a dedicated container 5. In the following description, it is assumed that the film roll 22 is stored in the container 5 in an inclined posture (see FIG. 13A). When the film roll 22 is in the inclined posture, the rotating body 99, the left mounting portion 96, and the handle 25 are in a posture that is rotated approximately 45 degrees clockwise from the basic posture when viewed from the left side.

  As illustrated in FIG. 13A, the user grips the grip portion 25 </ b> A of the handle 25. The user can stably lift the film roll 22 by gripping the grip portion 25A, which is a predetermined part. Therefore, even if the film roll 22 is relatively heavy, the user does not drop the film roll 22 to be lifted.

  When the user lifts the grip portion 25A, both end portions in the axial direction of the insertion portion 25B come into contact with the upper portions of the inner peripheral surfaces 96D and 286C (see FIG. 7) from below. The handle 25 swings counterclockwise (in the direction of arrow A) as viewed from the left side with a contact portion (hereinafter, also referred to as a specific portion) between the insertion portion 25B and the inner peripheral surfaces 96D and 286C as the center. Since the handle 25 has flexibility, the handle 25 swings around a specific portion while being bent in a direction in which the grip portion 25A curves upward. Further, since the holes 96C and 286B are circular, the insertion part 25B is easy to slide with respect to the inner peripheral surfaces 96D and 286C, and the handle 25 is easy to swing.

  When the handle 25 moves the specific part upward, the rotating body 99 and the left mounting part 96 are lifted in an inclined posture. The position of the center of gravity of the film roll 22 is on the downstream side of the specific part in a side view.

  A force (hereinafter referred to as a restoring force) for moving the position of the center of gravity below the specific part acts on the rotating body 99 and the left mounting portion 96. Accordingly, as shown in FIGS. 13A and 13B, the rotating body 99 and the left mounting portion 96 rotate counterclockwise (in the direction of arrow B) as viewed from the left side with the specific portion as the center, to the basic posture. (See FIG. 13B). Therefore, even when the film roll 22 is stored in the container 5 in an inclined posture, the film roll 22 assumes the basic posture when taken out from the container 5.

  As shown in FIG. 14A, when the film roll 22 is lifted, only the rotating body 99 and the left mounting portion 96 rotate counterclockwise in the left side view around the axis P from the basic posture. Even in this case, the rotating body 99 and the left mounting portion 96 are rotated clockwise (in the direction of the arrow C) in the left side view around the axis P by the restoring force, and return to the basic posture. Therefore, the film roll 22 is stably held in the basic posture when being lifted.

  As shown in FIG. 14 (b), the user moves the film roll 22 held in the basic posture above the accommodating portion 830 (see FIG. 1), and the left-right direction of the film roll 22 is changed to the left-right direction of the packaging device 1. To match. The groove 155 is located above the protrusion 818E. The user moves the film roll 22 downward (arrow D direction). The protruding portion 818E enters the groove portion 155 from the end in the direction away from the axis P. As the first guide wall 156A is closer to the axis P, the first guide wall 156E extends in a direction closer to each other. Therefore, the protrusion 818E can easily enter between the pair of second guide walls 156B. The upper end of the protrusion 818E contacts the contact wall 154, and the lower end surface 818A (see FIG. 2) contacts the end of the pair of first guide walls 158A away from the axis P, whereby the film roll 22 The left mounting portion 96 is mounted in the recess 818 (see FIG. 2).

  At the same time that the left mounting portion 96 is mounted in the recess 818, the right mounting portion 92 enters and is mounted in the recess 141D (see FIG. 4). The tooth portion 92D (see FIG. 5) of the film roll 22 meshes with the winding gear 652A (see FIG. 5). Here, since the power of the packaging device 1 is not turned on, the solenoid (not shown) arranged on the upstream side of the plate-like member 16 is in a non-energized state. Therefore, the gear 653A is located at the separation position, and the lower gear group 653 and the upper gear group 652 are not connected to each other. Therefore, the winding gear 652A can freely rotate. Therefore, the tooth portion 92D can easily mesh with the take-up gear 652A. In the state where the film roll 22 is mounted in the recesses 141D and 818, the left mounting portion 96 is not rotatable, while the rotating body 99 is rotatable about the axis P. That is, the concave portions 141D and 818 support the rotating body 99 of the film roll 22 in a rotatable manner.

<Packaging operation>
With reference to FIGS. 15-22, the packaging operation | movement of the packaging apparatus 1 is demonstrated. 15 to 22 are cross-sectional views taken along the line AA in FIG. 2, and the casing 800, the bottom portion 10, and the side plate portions 111 and 112 are not shown. Before the packaging operation is performed, the leading end of the film 24 is pulled out from the film roll 22 accommodated in the accommodating portion 830, and is located below the conveying path 103 and downstream of the pedestal guide roller 71 (see FIG. 15). ). The user attaches the film roll 22 to the packaging device 1, rotates the lid 806 to the closed position, and turns on the packaging device 1. The user inputs an instruction to start the packaging operation via the operation unit 206. Before the packaging operation is performed, the packaging device 1 is in an initial state (see FIG. 15). When the packaging device 1 is in the initial state, the gear 653A is disposed at the meshing position, the support unit 34 is disposed at the uppermost position, the heating unit 86 is disposed at the lowermost position, the stopper 81 is disposed on the downstream side, and the cutting unit 77 is arranged on the left side, and the holding roller 72 is arranged at a position close to the pedestal guide roller 71 from the downstream side. The leading end of the film 24 is sandwiched between the holding roller 72 and the pedestal guide roller 71 from both sides in the transport direction. The film 24 is in a state of extending straight in the vertical direction between the upstream side of the second auxiliary roller 33 and the portion sandwiched between the base guide roller 71 and the holding roller 72 (see FIG. 15).

  In addition, it is assumed that the detachable unit 60 is at the start position. The start position is a position at which conveyance of the pedestal 2 placed on the cradle 12 is started. The pedestal 2 placed on the cradle 12 by the user is positioned by being attached to the detachable part 60 at the start position. The article 3 is placed on the first plate-like portion 905 of the base 2. When the user inputs an instruction to start the packaging operation to the operation unit 206 (see FIG. 1), the packaging device 1 starts the packaging operation.

  As shown in FIG. 15, the belts 511 and 512 rotate counterclockwise as viewed from the right side when a transport motor (not shown) is driven. As the belts 511 and 512 rotate, the attaching / detaching unit 60 conveys the base 2 toward the downstream side (see FIGS. 15 and 16).

  As shown in FIG. 16, the pedestal 2 is conveyed toward the downstream side by the conveyance motor rotating the belts 511 and 512 counterclockwise when viewed from the right side (arrow 142). The downstream end of the first plate-like portion 905 contacts the film 24 and then passes over the holding roller 72. The pedestal 2 approaches the movement path 104 from the upstream side while pushing the film 24 to the downstream side, and passes above the heating unit 86. Note that the leading end of the film 24 is sandwiched between a pedestal guide roller 71 and a holding roller 72. When the film 24 is pushed downstream by the pedestal 2, the leading end portion of the film 24 wraps around the lower surface of the first plate-like portion 905. The rotating body 99 rotates in the feeding direction around the axis P with respect to the left mounting portion 96. The feeding direction is a direction in which the film 24 wound around the core portion 29 is fed. Note that the left mounting portion 96 does not rotate because the projection 818E (see FIG. 3) enters the groove 155 (see FIG. 6). That is, a predetermined load is generated between the base portion 96 </ b> A (see FIG. 7) and the left cylindrical portion 281 (see FIG. 7) with the axis P as the center and in opposite directions. When the rotating body 99 rotates, the film motor 227 rotates the tooth portion 92D in the feeding direction via the lower gear group 653 and the upper gear group 652. That is, the film motor 227 rotates the rotating body 99 in the feeding direction.

  When the downstream end of the pedestal 2 moves a predetermined distance downstream from the position above the heating unit 86, the transport motor stops the rotation of the belts 511 and 512. The pedestal 2 stops. The film motor 227 (see FIG. 4) further rotates the rotating body 99. As a result, the film 24 is forcibly fed out from the film roll 22. As the film roll 22 rotates in the direction of arrow 161, the film 24 relaxes. Thereafter, the film motor 227 stops rotating.

  A heating unit motor (not shown) raises the heating unit 86 to the top (arrow 143). The upper surface of the heating unit 86 is close to the conveyance path 103 from below. The downstream end of the pedestal 2 has moved a predetermined distance downstream from the upper position of the heating unit 86, and the film 24 has wrapped around the lower surface of the first plate-like part 905. Therefore, the upper surface of the heating unit 86 moved to the uppermost position is in a state where the leading end portion of the film 24 is sandwiched between the upper surface of the heating unit 86 and the lower surface of the first plate-shaped portion 905.

  The heater 871 (see FIG. 12) of the heating unit 86 generates heat. When heated by the heater 871, the leading end of the film 24 is melted and bonded to the lower surface of the base 2. The heater 871 stops the heat generation after a lapse of a predetermined time from the start of heat generation. The predetermined time is a time required for heating the temperature of the film 24 to the melting point by the heater 871.

  As shown in FIG. 17, a heating unit motor (not shown) lowers the heating unit 86 to the lowest position (arrow 144). The holding unit motor (not shown) swings the holding unit 78 to move the holding roller 72 to a position spaced downward with respect to the base guide roller 71 (arrow 145). The pedestal guide roller 71 and the holding roller 72 release the leading end of the film 24. In addition, the front-end | tip part of the film 24 is the state adhere | attached on the lower surface of the base 2. As shown in FIG.

  The conveyance motor starts rotation of the belts 511 and 512 counterclockwise as viewed from the right side, and conveys the base 2 to the downstream side (arrow 146). The leading end of the film 24 is released from the pedestal guide roller 71 and the holding roller 72. The leading end of the film 24 is moved to the downstream side with the movement of the pedestal 2 while being adhered to the lower surface of the pedestal 2. Note that the film motor 227 rotates the rotating body 99 in the feeding direction as the pedestal 2 moves downstream. The film 24 is further unwound from the film roll 22 (arrow 162). The film 24 is loose.

  The conveyance motor continuously rotates the belts 511 and 512 counterclockwise as viewed from the right side, so that the downstream end of the base 2 is located upstream of the intersection 105 where the conveyance path 103 and the movement path 104 intersect. Cross from the road toward the downstream side. The base 2 is further conveyed downstream (arrow 146). By transporting the pedestal 2 to the downstream side, the downstream end of the first plate-like portion 905 of the pedestal 2 and the downstream end of the article 3 are brought into contact with the film 24 and bent.

  The downstream end of the pedestal 2 is transported to the cradle 13. The upstream end of the pedestal 2 is conveyed to the downstream side of the pedestal guide roller 71. The film 24 is disposed at a position covering the first plate-like portion 905 and the upper side of the article 3. After the upstream end of the base 2 crosses the intersection position 105 from the upstream side to the downstream side, the conveyance motor stops the rotation of the belts 511 and 512. The pedestal 2 stops. The film 24 extending from the film roll 22 contacts the upstream side of the second auxiliary roller 33 and is guided slightly upstream, contacts the lower side of the second auxiliary roller 33 and extends downstream, and the first auxiliary roller It contacts the lower side of 32 and extends further downstream, reaching the downstream side of the base 2 and the downstream side of the article 3. The guide roller 31 is disposed above the film 24 extending between the first auxiliary roller 32 and the base 2 and the article 3.

  As shown in FIG. 18, after the base 2 is stopped, the carriage motor 221 (see FIG. 1) moves the support portion 34 along the movement path 104 from the uppermost position to the lowermost position. As the support portion 34 moves to the lowest position, the guide roller 31 contacts the film 24 from above, and further guides the film 24 downward along the movement path 104 (arrow 147). The film 24 presses the base 2 and the article 3 from above. While the support portion 34 moves to the lowest position, the film motor 227 rotates the rotating body 99 in the feeding direction. The film 24 is fed out from the film roll 22 (arrow 163). Accordingly, the film 24 is loose. Thereafter, the film motor 227 stops rotating.

  As shown in FIG. 19, the guide roller 31 that has moved to the lowest position is in contact with the transport path 103 from below. The film 24 covers the first plate-shaped portion 905 and the downstream side, the upper side, and the upstream side of the article 3. The film motor 227 rotates the rotating body 99 in the winding direction. The winding direction is the direction opposite to the feeding direction. As a result, the film 24 fed out from the film roll 22 is forcibly wound around the film roll 22 (arrow 164).

  The conveyance motor rotates the belts 511 and 512 clockwise as viewed from the right side. The detachable portion 60 moves from the downstream side to the upstream side, and conveys the base 2 toward the upstream side (arrow 148). The upstream end of the first plate-like portion 905 of the pedestal 2 comes into contact with the film 24 and pushes it upstream. The upstream end of the pedestal 2 crosses the intersection position 105 from the downstream side toward the upstream side, and passes through the upper position of the heating unit 86.

  The guide roller 31 moves relatively to the downstream side with respect to the pedestal 2 while being in contact with the lower surface of the first plate-like portion 905 from below. The film 24 is sandwiched between the lower surface of the first plate-shaped portion 905 and the guide roller 31. The film 24 goes around to the lower side of the base 2. When the upstream end surface of the pedestal 2 has moved a predetermined distance upstream from the position above the heating unit 86, the transport motor stops driving and stops the pedestal 2.

  When the base 2 is conveyed upstream, the film motor 227 rotates the rotating body 99 in the winding direction. The film 24 is wound on a film roll 22. Accordingly, the pedestal 2 is transported to the upstream side, and tension is applied to the film 24 in response to the upstream end of the first plate-shaped portion 905 pushing the film 24 to the upstream side. Due to the tension acting on the film 24, the film 24 adheres to the base 2 and the article 3.

  As shown in FIG. 20, the cam motor (not shown) moves the stopper 81 upstream (arrow 149). On the upstream side of the stopper 81, the guide roller 31 that has moved to the lowest position is disposed. The rubber of the stopper 81 is close to the guide roller 31 and sandwiches the film 24 wound around the guide roller 31 between the guide roller 31 and the rubber. The film 24 is sandwiched between the guide roller 31 and the rubber of the stopper 81. The rotation of the guide roller 31 is restricted. Thereafter, the film motor 227 stops driving and stops the rotation of the film roll 22 in the winding direction.

  The cutting unit motor moves the cutting unit 77 from the left side to the right side along the guide rail 74 (see FIG. 11). When the cutting portion 77 moves to the right side, the film 24 is cut by the blade portion 771 on the film roll 22 side from the portion sandwiched between the guide roller 31 and the rubber of the stopper 81. The cutting part 77 cuts out the part which covered the downstream edge part of the base 2 and the articles | goods 3 among the films 24 from the film roll 22 side. After the film 24 is cut, the cut end of the film 24 extending from the film roll 22 hangs down below the pedestal guide roller 71 (see FIG. 21).

  As shown in FIG. 21, the holding unit motor (not shown) moves the holding roller 72 to a position close to the base guide roller 71 from the downstream side by swinging the holding unit 78 (arrow 150). ). An end portion of the film 24 cut by the cutting portion 77 is sandwiched between the pedestal guide roller 71 and the holding roller 72.

  The heating unit motor raises the heating unit 86 from the lowest position to the highest position (arrow 151). The upper surface of the heating unit 86 is close to the conveyance path 103 from below. Note that the upstream end face of the first plate-like portion 905 has moved upstream by a predetermined distance from the position above the heating portion 86. At the upstream end of the lower surface of the first plate-shaped portion 905, the film 24 guided by the guide roller 31 is in a state of being disposed along the lower surface. Therefore, when the heating unit 86 is raised and disposed at the uppermost position, the upper surface of the heating unit 86 is in a state where the film 24 is sandwiched between the pedestal 2 and the upper surface.

  The heater 871 of the heating unit 86 generates heat and heats the end portion of the film 24 cut by the cutting unit 77. The film 24 melts. The melted film 24 is bonded to the upstream end of the lower surface of the base 2. The film 24 cut from the film roll 22 is in a state of covering the base 2 and the article 3. The base 2 and the article 3 are packaged. The heater 871 stops generating heat after a predetermined time has elapsed.

  As shown in FIG. 22, the heating unit motor lowers the heating unit 86 from the highest level to the lowest level (arrow 152). The upper surface of the heating unit 86 is separated from the conveyance path 103. The cam motor moves the stopper 81 downstream (arrow 153). The rubber provided on the stopper 81 is separated from the guide roller 31. The guide roller 31 is in a rotatable state. Thereafter, the transport motor rotates the belts 511 and 512 counterclockwise as viewed from the right side to transport the base 2 to the downstream side. Thereby, the base 2 after packaging is conveyed downstream toward the receiving tray 13, and the packaging operation by the packaging apparatus 1 is completed.

  As described above, when the user lifts the film roll 22 stored in the container 5 in an inclined posture, the handle 25 swings around a specific portion, and the rotating body 99 and the left mounting portion 96 are restored. It rotates around a specific part by force. As a result, the film roll 22 that has been in the inclined posture changes from the inclined posture to the basic posture when it is lifted. Further, when the film roll 22 is lifted, even if the rotating body 99 and the left mounting portion 96 rotate about the axis P, a restoring force that returns to the basic posture acts on the rotating body 99 and the left mounting portion 96. To do. The rotating body 99 and the left mounting portion 96 immediately return to the basic posture. Therefore, the lifted rotating body 99 rotates around the axis P, and the film 24 is not pulled out. As described above, the film roll 22 can have a predetermined posture when held.

  The handle 25 is formed in a loop shape. When the user lifts the film roll 22, since the force due to the weight of the film roll 22 does not act on a certain part of the handle 25, the handle 25 is not easily damaged. Therefore, the film roll 22 can improve the durability of the handle 25 as compared with the case where the handle 25 is rotatably connected to the right cylindrical portion 286 and the left mounting portion 96.

  Further, the handle 25 has flexibility in the direction approaching and separating from the axis P. When the user grips the grip portion 25A and lifts the film roll 22, the grip portion 25A bends in a direction away from the axis P. Thereby, a sudden reaction force is not added to a user's hand. Therefore, the user can lift the film roll 22 smoothly.

  The holes 96C and 286B are formed in a circular shape. When the film roll 22 stored in the container 5 is lifted in an inclined posture, the insertion portion 25B is easy to slide with respect to the inner peripheral surfaces 96D and 286C, and the handle 25 is likely to swing around a specific portion. The handle 25 in the inclined posture is easy to return to the basic posture. Therefore, the film roll 22 can further stabilize the posture when held.

  Further, the holes 96C and 286B are formed at positions separated from the axis P, respectively. As a result, the specific part is surely separated from the axis P. Therefore, when the tilted film roll 22 is lifted, the film roll 22 is surely in the basic position. Therefore, the film roll 22 can be more reliably brought into a predetermined posture when held.

  The pair of first guide walls 156 </ b> A of the groove portion 155 extends in a direction closer to each other as it approaches the axis P. Thereby, when the film roll 22 is mounted on the packaging device 1, the protrusion 818 </ b> E easily enters between the pair of second guide walls 156 </ b> B, and further contacts the contact walls 154 and is easily positioned. Therefore, the film roll 22 can be easily attached to the packaging device 1.

  Further, the groove portion 155 is formed on the opposite side of the base portion 96A across the hole portion 96C and the axis P. When the film roll 22 is lifted, the opening end in the direction away from the axis P of the groove 155 faces downward. The user can cause the protruding portion 818E of the packaging device 1 to enter the groove portion 155 by moving the lifted film roll 22 downward. Therefore, the film roll 22 can be mounted on the packaging device 1 more easily.

  The handle 25 has a flat plate shape made of polypropylene. The plate-like handle 25 is easily deformed and bent easily in the thickness direction. That is, the handle 25 is easily bent in a direction away from the axis P and in a direction close thereto. By being formed from polypropylene, the strength of the handle 25 is increased. Therefore, the handle 25 can exhibit high strength while having flexibility.

  When the left mounting portion 96 is mounted in the recess 818, not only the contact wall 154 of the groove 155 contacts the upper surface of the projection 818E but also the pair of first guide walls 156A contacts the lower end surface 818A. The load applied to the left mounting portion 96 that is mounted in the recess 818 is dispersed. Therefore, the left mounting portion 96 is not easily damaged. Further, since the protrusion 818E extends upward from the lower end surface 818A, the user simply moves the film roll 22 before mounting downward and causes the protrusion 818E to enter the groove 155, so that the pair of first guide walls 156A Each can be brought into contact with the lower end surface 818A. Thus, the packaging device 1 can support the film roll 22 stably without damaging the left mounting portion 96 of the film roll 22 while facilitating the mounting of the film roll 22.

The left end portion of the core portion 29 is an example of the “one end portion” in the present invention. The right end portion of the core portion 29 is an example of the “other end portion” in the present invention. The left mounting portion 96 is an example of the “first connecting portion” or “at least one connecting portion” in the present invention. The right cylindrical portion 286 is an example of the “left mounting portion 96” in the present invention.
The hole 96C is an example of the “first hole” in the present invention. The base portion 96A is an example of the “first wall portion” in the present invention. The hole 286B is an example of the “second hole” in the present invention. The wall portion 286A is an example of the “second wall portion” in the present invention. The concave portions 141D and 818 are examples of the “supporting portion” of the present invention. The cradle 12 is an example of the “mounting table” in the present invention. The belts 511 and 512, the movable roller 30, the cutting unit 77, the pedestal guide roller 71, the holding roller 72, the heating unit 86, and the rotation suppressing unit 80 are examples of the “packaging unit” of the present invention. The lower end surface 818A is an example of the “wall surface” in the present invention.

  The present invention is not limited to the above embodiment, and various modifications can be made. The holes 96 </ b> C and 286 </ b> B are not limited to being formed in portions of the base portion 96 </ b> A and the wall portion 286 </ b> A that are separated from the axis P, respectively. For example, you may form in the site | part through which the axis line P passes among base part 96A and wall part 286A.

  The hole portion 96C may not penetrate the base portion 96A at a position spaced apart from the axis line P perpendicular to the axial direction and the opposing direction. For example, the hole portion 96C may penetrate the base portion 96A in the vicinity of the groove portion 155.

Further, the holes 96C and 284B are not limited to being circular. For example, an elliptical shape that is long in the direction away from the axis P may be used, or a polygonal shape such as a quadrangle or a pentagon may be used. Further, only one of the holes 96C and 284B may be circular.

  Moreover, the handle 25 does not need to be formed from synthetic resins, such as a polypropylene. The handle 25 may be formed of a cloth member, an elastic member, a metal member, or the like. For example, the handle 25 may be a wire or the like. Even in this case, the handle 25 has flexibility. Note that the handle 25 may not have flexibility. Further, the handle 25 may not be formed in a flat plate shape. For example, the handle 25 may be formed in a sheet shape such as a vinyl string.

  Further, the position of the center of gravity does not have to coincide with the axis P in a side view. In this case, when the film roll 22 is lifted, the film roll 22 is held in such a posture that the position of the center of gravity is below the holes 96C and 286B.

  The handle 25 does not have to be a loop. Hereinafter, a film roll 122 which is a modification of the film roll 22 will be described with reference to FIG. The film roll 122 includes a handle 125 instead of the handle 25, and includes a right attachment portion 132 and a left attachment portion 134 in addition to various members included in the film roll 22. The right attachment portion 132 is a cap member that fits into the hole portion 286B of the wall portion 286A. The right attachment portion 132 is fixed to the right cylindrical portion 286. The left attachment portion 134 is a cap member that fits into the hole portion 96C of the base portion 96A. The left attachment portion 134 is fixed to the left mounting portion 96. The handle 125 is a rod-like member that is long in the left-right direction. The right side portion of the handle 125 is slidably connected to the right wall portion of the right mounting portion 132. The left side portion of the handle 125 is slidably connected to the left wall portion of the left mounting portion 134. That is, the handle 125 can swing with respect to the right attachment portion 132 and the left attachment portion 134. A central portion in the left-right direction of the handle 125 faces the outermost peripheral surface of the film 24 from the outside. The axis Q of the film roll 122 coincides with the center of gravity of the film roll 122 in a side view.

  When the user takes out the film roll 122 from the container 5 (see FIG. 13), the user grips the central portion of the handle 125 in the left-right direction. The handle 125 can swing with respect to the right attachment portion 132 and the left attachment portion 134. Therefore, the film roll 122 is stably held in a posture in which the center of gravity is located immediately below a portion where the handle 125 is connected to the right attachment portion 132 and the left attachment portion 134 in a side view.

DESCRIPTION OF SYMBOLS 1 Packaging apparatus 2 Base 3 Goods 12 Receptacle 24 Film 25, 125 Handle 29 Core part 29A Through-hole 29B Peripheral surface 30 Movable roller 71 Base guide roller 72 Holding roller 77 Cutting part 80 Rotation suppression part 86 Heating part 96 Left mounting part 96A Base portion 96C, 286B Hole portion 155 Groove portion 286 Right cylindrical portion 286A Wall portion 286B Hole portion 511, 512 Belt 818A Lower end surface 818E Projection portion P, Q Axis line

Claims (16)

A core portion on which the film is wound around the outer peripheral surface surrounding the axis serving as the rotation center;
A first connecting portion connected to one end portion in the axial direction of the core portion;
A second connecting portion connected to the other end portion of the core portion opposite to the one end portion;
At least a portion of the outermost peripheral surface of the film is disposed on the outer side opposite to the core portion, and is swingable with respect to each of the first connection portion and the second connection portion; A handle capable of supporting each specific part spaced apart from the axis of the first connecting part and the second connecting part ,
The core portion has a cylindrical shape in which a through hole extending in the axial direction is formed inside,
The first connecting portion includes a first wall portion formed with a first hole portion communicating with the through hole in the axial direction.
The second connecting portion includes a second wall portion formed with a second hole portion communicating with the through hole in the axial direction.
The handle is formed in a loop shape that surrounds a part in the circumferential direction of the core portion from the inside and the outside of each of the first hole portion, the through hole, and the second hole portion. Characteristic film roll.   2. The film roll according to claim 1, wherein the handle has flexibility in a direction close to the axis and in a direction away from the axis. The film roll according to claim 1 or 2 , wherein at least one of the first hole portion and the second hole portion is formed in a circular shape. The film roll according to any one of claims 1 to 3 , wherein the first hole portion and the second hole portion are formed at positions separated from the axis. Provided in at least one of the first connecting portion and the second connecting portion, an end in a direction away from the axis is an open end, and a groove portion whose groove width becomes narrower as it approaches the axis. The film roll according to any one of claims 1 to 4 , wherein: The groove is provided on the opposite side across the axis with the specific part corresponding to the at least one connection part among the specific parts of the first connection part and the second connection part. The film roll according to claim 5 , wherein The film roll according to any one of claims 2 to 6 , wherein the handle has a flat plate shape made of polypropylene. A core portion on which the film is wound around the outer peripheral surface surrounding the axis serving as the rotation center;
A first connecting portion connected to one end portion in the axial direction of the core portion;
A second connecting portion connected to the other end portion of the core portion opposite to the one end portion;
At least a portion of the outermost peripheral surface of the film is disposed on the outer side opposite to the core portion, and is swingable with respect to each of the first connection portion and the second connection portion; A handle capable of supporting each of the specific portions of the first connecting portion and the second connecting portion that are separated from the axis.
With
The film roll according to claim 1, wherein the handle has flexibility in a direction close to the axis and in a direction away from the axis. Provided in at least one of the first connecting portion and the second connecting portion, an end in a direction away from the axis is an open end, and a groove portion whose groove width becomes narrower as it approaches the axis. The film roll according to claim 8. The groove is provided on the opposite side across the axis with the specific part corresponding to the at least one connection part among the specific parts of the first connection part and the second connection part. The film roll according to claim 9, which is characterized by: The film roll according to claim 8, wherein the handle has a flat plate shape made of polypropylene. A core portion on which the film is wound around the outer peripheral surface surrounding the axis serving as the rotation center;
A first connecting portion connected to one end portion in the axial direction of the core portion;
A second connecting portion connected to the other end portion of the core portion opposite to the one end portion;
At least a portion of the outermost peripheral surface of the film is disposed on the outer side opposite to the core portion, and is swingable with respect to each of the first connection portion and the second connection portion; A handle capable of supporting each of the specific portions of the first connecting portion and the second connecting portion that are separated from the axis.
With
Provided in at least one of the first connecting portion and the second connecting portion, an end in a direction away from the axis is an open end, and a groove portion whose groove width becomes narrower as it approaches the axis. A film roll characterized by that. The groove is provided on the opposite side across the axis with the specific part corresponding to the at least one connection part among the specific parts of the first connection part and the second connection part. 13. A film roll according to claim 12, characterized in that The film roll according to claim 12 or 13, wherein the handle has a flat plate shape made of polypropylene. The film is wound on the outer peripheral surface surrounding the axis serving as the center of rotation, and at least one of both end portions in the axial direction is an opening end in a direction away from the axial line, and the groove width becomes narrower as it approaches the axis. A support part that rotatably supports the film roll provided with the groove part in a posture in which the axis extends in the horizontal direction;
A mounting table that supports a pedestal on which an article can be mounted;
A packaging means for transporting the pedestal placed on the mounting table substantially horizontally and packaging the article together with the pedestal with the film of the film roll supported by a front support portion;
The film roll is swingable with respect to each of both end portions in the axial direction of the film roll, and includes a handle capable of supporting each specific part spaced from the axis of the both end portions,
The said support part is provided with the projection part which can approach the inside of the said groove part from the said opening end in the said groove part, The packaging apparatus characterized by the above-mentioned. The support portion includes a wall surface that can be in contact with an end portion of the at least one of the both end portions in the direction away from the axis and is substantially parallel to the horizontal direction,
The packaging device according to claim 15 , wherein the protruding portion protrudes from the wall surface.

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