US20130298503A1 - Film cassette - Google Patents
Film cassette Download PDFInfo
- Publication number
- US20130298503A1 US20130298503A1 US13/799,119 US201313799119A US2013298503A1 US 20130298503 A1 US20130298503 A1 US 20130298503A1 US 201313799119 A US201313799119 A US 201313799119A US 2013298503 A1 US2013298503 A1 US 2013298503A1
- Authority
- US
- United States
- Prior art keywords
- film
- cassette
- base
- film roll
- rotation axis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B41/00—Supplying or feeding container-forming sheets or wrapping material
- B65B41/12—Feeding webs from rolls
- B65B41/16—Feeding webs from rolls by rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H18/00—Winding webs
- B65H18/28—Wound package of webs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/40—Type of handling process
- B65H2301/41—Winding, unwinding
- B65H2301/413—Supporting web roll
- B65H2301/4134—Both ends type arrangement
- B65H2301/41346—Both ends type arrangement separate elements engaging each end of the roll (e.g. chuck)
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2405/00—Parts for holding the handled material
- B65H2405/40—Holders, supports for rolls
- B65H2405/42—Supports for rolls fully removable from the handling machine
- B65H2405/421—Supports for rolls fully removable from the handling machine and serving also as package
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
- B65H2701/17—Nature of material
- B65H2701/175—Plastic
- B65H2701/1752—Polymer film
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
- B65H2701/18—Form of handled article or web
- B65H2701/184—Wound packages
- B65H2701/1849—Wound packages in cartridge or similar packaging device
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2801/00—Application field
- B65H2801/81—Packaging machines
Definitions
- the present disclosure relates to a film cassette that internally houses a packaging film.
- a packaging device is known that is configured to package a product.
- a packaging machine is known that overlaps a product with a plastic film while the product is conveyed by a conveyor. By heating the plastic film using a heat sealing member, the packaging machine packages the product with the plastic film. The packaging machine pulls out the plastic film from a film roll of the plastic film, and feeds the film while positioning the film using rollers on a feed path.
- Various embodiments of the broad principles derived herein provide a film cassette that allows an operator to efficiently perform an operation of mounting a film roll in a packaging device.
- a film cassette that includes a film roll, a cassette case, and a roller portion.
- the film roll is a wound film for packaging.
- the cassette case is configured to rotatably house the film roll.
- the cassette case includes a discharge opening from which the film pulled out from the film roll is discharged to the outside of the cassette case.
- the discharge opening extends in a direction parallel to a first rotation axis.
- the first rotation axis is a rotation axis of the film roll.
- the roller portion is rotatably supported by the cassette case in the vicinity of the discharge opening.
- the roller portion is rotatable around a second axis.
- the second rotation axis extends parallel to the first rotation axis.
- FIG. 1 is a perspective view of a packaging device 1 on which a film cassette 21 is placed, as seen from the front;
- FIG. 2 is a perspective view of the packaging device 1 on which the film cassette 21 is placed, as seen from the rear;
- FIG. 3 is a perspective view showing internal structures of the film cassette 21 and the packaging device 1 ;
- FIG. 4 is a perspective view of the film cassette 21 , as seen from the front;
- FIG. 5 is a perspective view of the film cassette 21 , as seen from the rear;
- FIG. 6 is a perspective view showing the internal structure of the film cassette 21 in a state in which a right side half of a cassette case 25 is removed;
- FIG. 7 is a longitudinal sectional view of the film cassette 21 ;
- FIG. 8 is a plan view of the film cassette 21 ;
- FIG. 9 is a plan view of a film guide roller 23 ;
- FIG. 10 is a perspective view of a cylindrical member 232 ;
- FIG. 11 is a first view showing a process in which the packaging device 1 packages a packaging target object 3 and a base 80 ;
- FIG. 12 is a second view showing the process in which the packaging device 1 packages the packaging target object 3 and the base 80 ;
- FIG. 13 is a third view showing the process in which the packaging device 1 packages the packaging target object 3 and the base 80 ;
- FIG. 14 is a fourth view showing the process in which the packaging device 1 packages the packaging target object 3 and the base 80 .
- the lower left side, the upper right side, the upper left side, the lower right side, the upper side and the lower side of FIG. 1 respectively define the front side, the rear side, the left side, the right side, the upper side and the lower side of a packaging device 1 .
- the packaging device 1 is a device that, using a film 24 , packages an article 3 (hereinafter referred to as a “packaging target object 3 ”) that is placed on a base 80 , along with the base 80 (refer to FIG. 14 ).
- the base 80 is, for example, a board that is rectangular in a plan view. While conveying the base 80 from the rear toward the front, the packaging device 1 packages the base 80 and the packaging target object 3 (refer to FIG. 11 to FIG. 14 ).
- the front side of the packaging device 1 is also referred to as the downstream side in the conveyance direction and the rear side of the packaging device 1 is also referred to as the upstream side in the conveyance direction.
- the packaging device 1 includes side plate portions 111 and 112 that stand upward, respectively, from a right side edge and a left side edge of a bottom portion that has a rectangular shape in a plan view.
- the side plate portions 111 and 112 are collectively referred to as side plate portions 11 .
- the side plate portions 11 each have a generally rectangular plate shape that is longer in the up-down direction.
- One surface (an inner surface) of the side plate portion 111 and one surface (an inner surface) of the side plate portion 112 face each other.
- the film cassette 21 may be supported on the upper ends of the side plate portions 111 and 112 in a section between the side plate portions 111 and 112 .
- a slit 17 is formed in the inner surface of each of the side plate portions 11 .
- the slit 17 extends in the up-down direction in generally the center in the front-rear direction, of each of the side plate portions 11 .
- Gears 113 are provided on the upper ends of the side plate portions 111 and 112 , respectively (refer to FIG. 1 and FIG. 2 ). Only the gear 113 on the upper end of the side plate portion 111 is illustrated in FIG. 1 and FIG. 2 .
- a clutch spring (not shown in the drawings) regulates a rotation speed of the gears 113 .
- the film cassette 21 internally houses a film roll 22 (refer to FIG. 7 ).
- the film cassette 21 will be explained in more detail later.
- the base 80 on which the packaging target object 3 is placed may be conveyed from the upstream side toward the downstream side in the conveyance direction, below the film cassette 21 and between the side plate portions 111 and 112 .
- end portions of the side plate portions 11 on the downstream side in the conveyance direction support a first receiving tray 12 .
- the shape of the first receiving tray 12 is a generally rectangular plate shape that is longer in the left-right direction in a plan view.
- a top surface of the first receiving tray 12 is referred to as a first support surface 14 .
- the first support surface 14 is positioned on the downstream side in the conveyance direction of a conveyance portion 40 (to be described later), and supports the base 80 that is conveyed by the conveyance portion 40 .
- a pair of guide portions 16 are provided on a left edge portion and a right edge portion of the first receiving tray 12 .
- Groove portions 164 that are recessed in the left-right direction are provided on lower ends of the guide portions 16 , respectively.
- the base 80 is guided along the groove portions 164 .
- end portions of the side plate portions 11 on the upstream side in the conveyance direction support a second receiving tray 13 .
- the shape of the second receiving tray 13 is a generally rectangular plate shape that is longer in the left-right direction in a plan view.
- a top surface of the second receiving tray 13 is referred to as a second support surface 15 .
- the second support surface 15 is positioned on the upstream side in the conveyance direction of the conveyance portion 40 , and supports the base 80 that is conveyed by the conveyance portion 40 .
- the first support surface 14 of the first receiving tray 12 and the second support surface 15 of the second receiving tray 13 form the same flat surface.
- the base 80 on which the packaging target object 3 is placed may be conveyed on the flat surface from the upstream side toward the downstream side in the conveyance direction.
- the flat surface that is formed by the first support surface 14 of the first receiving tray 12 and the second support surface 15 of the second receiving tray 13 and that is the flat surface along which the conveyed base 80 passes is referred to as a conveyance surface.
- the side plate portions 11 includes the conveyance portion 40 shown in FIG. 3 .
- the conveyance portion 40 includes a pair of left and right conveyance rollers 41 and a pair of left and right urging rollers 42 .
- the conveyance rollers 41 are provided below the conveyance surface.
- the urging rollers 42 are provided above the conveyance surface.
- the conveyance rollers 41 and the urging rollers 42 are disposed in positions facing each other, with the conveyance surface located in between.
- the conveyance rollers 41 and the urging rollers 42 come into contact with a left edge portion and a right edge portion of the base 80 .
- the conveyance rollers 41 may be geared rollers, for example.
- the conveyance rollers 41 may rotate in a state in which the conveyance rollers 41 are in contact with the base 80 from below.
- the urging rollers 42 may be wheel-shaped rubber rollers, for example.
- the urging rollers 42 may downwardly urge the base 80 in a state in which the urging rollers 42 are in contact with the base 80 from above.
- the base 80 that is held between the conveyance rollers 41 and the urging rollers 42 may be conveyed from the upstream side toward the downstream side in the conveyance direction, in accordance with rotation of the conveyance rollers 41 .
- the packaging device 1 includes guide rollers 71 and 73 .
- the guide rollers 71 and 73 are provided between the side plate portions 111 and 112 and below the conveyance surface.
- the guide roller 71 is positioned between the second support surface 15 and the conveyance portion 40 .
- the guide roller 73 is positioned between the first support surface 14 and the conveyance portion 40 .
- the guide roller 71 includes a shaft portion 711 and a plurality of roller portions 712 .
- the guide roller 73 includes a shaft portion 731 and a plurality of roller portions 732 .
- the shaft portions 711 and 731 are respectively supported between the side plate portions 111 and 112 .
- the plurality of roller portions 712 are rotatably supported on the shaft portion 711 at equal intervals in the axial direction of the shaft portion 711 .
- the plurality of roller portions 732 are rotatably supported on the shaft portion 731 at equal intervals in the axial direction of the shaft portion 731 .
- the guide rollers 71 and 73 may support the base 80 conveyed by the conveyance rollers 41 and the urging rollers 42 , from below, between the first receiving tray 12 and the second receiving tray 13 .
- the guide rollers 71 and 73 may guide the base 80 , which is conveyed from the upstream side toward the downstream side in the conveyance direction, from the second receiving tray 13 to the first receiving tray 12 .
- the packaging device 1 includes a column-shaped holding roller 72 that is positioned on the upstream side of the conveyance portion 40 and below the conveyance surface.
- the holding roller 72 extends in the left-right direction.
- the left and right end portions of the holding roller 72 are rotatably supported by a holding portion 61 .
- the holding portion 61 is configured to swing.
- the holding portion 61 can switch between a first position and a second position.
- the first position is a position (refer to FIG. 12 ) in which the holding roller 72 is disposed close to the guide roller 71 on the downstream side of the guide roller 71 in the conveyance direction.
- the second position is a position (refer to FIG.
- the packaging device 1 includes two guide rails 74 .
- the guide rails 74 are mounted between the side plate portions 111 and 112 , below the guide roller 73 .
- the guide rails 74 support a cutting portion 77 such that the cutting portion 77 can move in the left-right direction.
- the cutting portion 77 has a blade portion 771 (refer to FIG. 11 ) that protrudes upward from the top surface.
- the blade portion 771 extends in the left-right direction. When the cutting portion 77 moves in the left-right direction along the guide rails 74 , the blade portion 771 cuts the film 24 .
- the packaging device 1 includes a guide roller 31 and an auxiliary roller 32 that each have a generally column shape.
- the guide roller 31 and the auxiliary roller 32 extend in the left-right direction.
- the left end portion and the right end portion of the guide roller 31 are supported by a pair of left and right first support portions 33 , such that the guide roller 31 is rotatably and detachably supported.
- the left end portion and the right end portion of the auxiliary roller 32 are rotatably supported by the pair of first support portions 33 .
- the first support portions 33 can move in the up-down direction along the slits 17 (refer to FIG. 1 and FIG. 2 ) that are provided in the side plate portions 11 .
- the guide roller 31 and the auxiliary roller 32 move in the up-down direction (refer to FIG. 12 and FIG. 13 ).
- a path of the guide roller 31 that moves in the up-down direction due to the movement of the first support portions 33 is sometimes referred to as a first path.
- FIG. 3 and FIG. 11 show a state in which the first support portions 33 are in a position furthest to the top.
- the position furthest to the top in a movable range of the first support portions 33 is referred to as a topmost position.
- the first support portions 33 are positioned on both the right and left sides of the film cassette 21 (refer to FIG. 1 ).
- the guide roller 31 and the auxiliary roller 32 are positioned above the conveyance surface and below the film cassette 21 .
- FIG. 13 shows a state in which the first support portions 33 (refer to FIG. 3 ) are in a position furthest to the bottom.
- the position furthest to the bottom in the movable range of the first support portions 33 is referred to as a lowermost position.
- a second support portion 51 and the holding portion 61 are positioned below the positions of the guide roller 31 and the auxiliary roller 32 when the first support portions 33 are in the lowermost position.
- the second support portion 51 is configured to move in the conveyance direction.
- the second support portion 51 is configured to support the guide roller 31 that is detached from the first support portions 33 .
- the guide roller 31 may move in the conveyance direction (refer to FIG. 13 and FIG.
- a path of the guide roller 31 that moves in the conveyance direction due to the movement of the second support portion 51 is sometimes referred to as a second path.
- the guide roller 31 may move along the first path and the second path due to the movement of the first support portions 33 and the second support portion 51 .
- the lower left side, the upper right side, the upper left side, the lower right side, the upper side and the lower side define, respectively, the front side, the rear side, the left side, the right side, the upper side and the lower side of the film cassette 21 .
- the film cassette 21 includes the film roll 22 (refer to FIG. 6 ), a cassette case 25 and a film guide roller 23 .
- the cassette case 25 is configured to house the film roll 22 inside.
- the film roll 22 has a generally cylindrical shape and extends in the left-right direction.
- the left end portion and the right end portion of the film roll 22 are rotatably supported by the left end portion and the right end portion of the cassette case 25 .
- a rotation axis of the film roll 22 extends in the left-right direction.
- the left-right direction of the film cassette 21 is sometimes referred to as an axial line direction.
- the film roll 22 includes a cylindrical shaped core portion 221 and the film 24 for packaging that is wound around the periphery of the core portion 221 .
- a pair of fixing members 27 are fixed to both end portions in the axial line direction (the left-right direction) of the core portion 221 .
- the fixing members 27 includes a wall portion 271 , a cylinder portion 272 and a gear 273 .
- the wall portion 271 has a round plate shape in a side view.
- the diameter of the wall portion 271 is substantially the same as the diameter of the film roll 22 when the film 24 is wound to the maximum.
- the cylinder portion 272 protrudes from the wall portion 271 to a specific length.
- the outer diameter of the cylinder portion 272 is substantially the same as the inner diameter of the core portion 221 of the film roll 22 .
- the fixing member 27 is fixed to the film roll 22 by the cylinder portion 272 being fitted into the inner periphery of the core portion 221 from the left or from the right of the film roll 22 .
- the wall portion 271 is thus disposed to the right end or to the left end of the film roll 22 .
- a column-shaped shaft portion protrudes from a center portion of the wall portion 271 toward the outside in the axial line direction.
- the shaft portion is fixed to the wall portion 271 .
- the gear 273 is fixed around the periphery of the shaft portion.
- the gear 273 When the fixing member 27 is fixed to the left end or the right end of the film roll 22 , the gear 273 is positioned on the outside in the axial line direction of the film roll 22 . In other words, the gear 273 protrudes from the left end portion or the right end portion of the film roll 22 , in either the left direction or the right direction, along the rotation axis of the film roll 22 .
- the gears 273 of the pair of left and right fixing members 27 are arranged, respectively, on the inner side of left and right protruding portions 253 and 254 (to be explained later) of the cassette case 25 (refer to FIG. 8 ).
- the fixing members 27 When the film roll 22 rotates due to the film 24 being pulled out, the fixing members 27 also rotate. As a result, the gears 273 rotate around the rotation axis of the film roll 22 in accordance with the rotation of the film roll 22 .
- the cassette case 25 includes an upper case 251 and a lower case 252 .
- the cassette case 25 is a housing (refer to FIG. 5 and FIG. 7 ) that has a generally column-shaped outer form, and a rear end portion thereof protrudes in the downward direction.
- the protruding portion 253 protrudes toward the right from the right surface of the cassette case 25 .
- the protruding portion 254 protrudes toward the left from the left surface of the cassette case 25 .
- a hole 255 is provided in the front surface of the protruding portion 253 .
- a hole 256 is provided in the front surface of the protruding portion 254 .
- the holes 255 and 256 of the protruding portions 253 and 254 expose the gears 273 to the outside on the right side and the left side, respectively.
- a protruding portion 257 is provided on the lower portion of the rear end portion of the cassette case 25 .
- the protruding portion 257 protrudes in the downward direction from the left end portion to the right end portion.
- the protruding portion 257 includes a discharge opening 26 on the lower end thereof (refer to FIG. 7 ).
- the discharge opening 26 is a hole that extends from the left end portion to the right end portion of the protruding portion 257 , in parallel to the axial line direction.
- the film 24 that is pulled out from the film roll 22 is discharged to the outside of the cassette case 25 from the discharge opening 26 .
- the film guide roller 23 is provided in the discharge opening 26 , along the axial line direction.
- the film guide roller 23 includes a shaft portion 231 and a plurality of cylindrical members 232 .
- the shaft portion 231 is disposed in the axial line direction.
- the left and right end portions of the shaft portion 231 are supported by holes 258 that are provided, respectively, in the lower left end portion and the lower right end portion of the protruding portion 257 .
- the shaft portion 231 does not rotate.
- the shaft portion 231 may be rotatably supported at the protruding portion 257 .
- each of the cylindrical members 232 is formed in a cylindrical shape having a hole in the center portion thereof.
- the plurality of cylindrical members 232 (five cylindrical members 232 in the example shown in FIG. 9 ) are rotatably provided around the periphery of the shaft portion 231 .
- the cylindrical members 232 are aligned in the axial line direction.
- the film 24 that is pulled out from the film roll 22 passes behind the film guide roller 23 and is discharged to the outside from the discharge opening 26 .
- the cylindrical members 232 rotate in accordance with the pulling out of the film 24 , due to contact resistance with the film 24 .
- a recessed portion 259 which is recessed in the upward direction, is provided on the front of the protruding portion 257 of the cassette case 25 .
- the auxiliary roller 32 is positioned in the recessed portion 259 (refer to FIG. 11 ).
- an operator arranges the film cassette 21 on the upper ends of the side plate portions 11 (refer to FIG. 1 and FIG. 11 ).
- the protruding portions 253 and 254 of the film cassette 21 are supported on the upper ends of the side plate portions 11 .
- the gears 273 that are exposed to the outside from the holes 255 and 256 of the protruding portions 253 and 254 mesh with the gears 113 provided on the upper ends of the side plate portions 11 (refer to FIG. 1 ).
- the operator manually pulls out the film 24 that has been discharged from the discharge opening 26 of the film cassette 21 .
- the operator arranges the leading end of the pulled out film 24 on the downstream side of the guide roller 71 .
- the operator operates the packaging device 1 and swings the holding portion 61 to the first position.
- the holding roller 72 moves to a position on the downstream side of and in the vicinity of the guide roller 71 . As shown in FIG. 11 , the leading edge of the film 24 that is pulled out from the film cassette 21 is clamped by the guide roller 71 and the holding roller 72 from the upstream side and the downstream side in the conveyance direction.
- the rotation speed of the gears 113 of the packaging device 1 which mesh with the gears 273 of the film cassette 21 , is regulated. Therefore, when the film 24 is pulled out, the rotation speed of the film roll 22 that rotates along with the gears 273 is also regulated. As a result, tension is applied to the pulled out film 24 .
- the film 24 extends in a straight manner in a direction that is generally orthogonal to the conveyance surface (namely, in the up-down direction) (refer to FIG. 11 ).
- the first support portions 33 (refer to FIG. 3 ) are disposed in the topmost position.
- the auxiliary roller 32 is positioned in the recessed portion 259 of the film cassette 21 .
- the second support portion 51 is disposed on the uppermost stream side in the conveyance direction.
- the cutting portion 77 is located on the left end.
- the operator places the packaging target object 3 on the base 80 .
- the operator places the base 80 on which the packaging target object 3 is placed on the second support surface 15 of the second receiving tray 13 .
- the operator arranges the leading edge (the downstream side edge) of the base 80 on the conveyance portion 40 .
- the downstream side edge of the base 80 moves, sequentially, over the second receiving tray 13 , the guide roller 71 and the holding roller 72 .
- the downstream side edge of the base 80 comes into contact with the film 24 .
- the operator sends the base 80 further toward the downstream side.
- the downstream side edge of the base 80 pushes the film 24 to the downstream side.
- a sensor 431 (refer to FIG. 1 ) is provided slightly to the upstream side of the conveyance portion 40 .
- the downstream side edge of the base 80 pushes the sensor 431 downward.
- the sensor 431 is thus turned to an ON state.
- the packaging device 1 starts to rotate the conveyance rollers 41 .
- the conveyance portion 40 clamps the base 80 from above and below.
- the conveyance portion 40 appropriately conveys the base 80 toward the downstream side.
- the downstream side edge of the base 80 and the downstream side edge of the packaging target object 3 press against the film 24 .
- the film 24 bends at a section that comes into contact with the base 80 and at a section that comes into contact with the packaging target object 3 .
- the film 24 is gradually pulled out from the film cassette 21 .
- the rotation speed of the gears 113 is regulated and so tension is applied to the pulled out film 24 . Therefore, the film is pushed strongly against the downstream side of the base 80 and the packaging target object 3 .
- the film 24 is firmly attached to the base 80 and to the packaging target object 3 in a position at which the film 24 covers the downstream side of the base 80 and the packaging target object 3 .
- the leading edge of the film 24 is separated from the guide roller 71 and the holding roller 72 .
- the leading edge of the film 24 moves along with the base 80 and passes through between the base 80 and the holding roller 72 .
- the holding roller 72 presses the leading edge of the film 24 against the bottom surface of the base 80 , from below.
- the leading edge of the film 24 is bonded to an adhesion portion that is provided on the bottom surface of and on the downstream side of the base 80 .
- the conveyance portion 40 continuously conveys the base 80 to the downstream side.
- the sensor 431 (refer to FIG. 1 )
- the sensor 431 is turned to an OFF state.
- the packaging device 1 stops the rotation of the conveyance rollers 41 .
- the film 24 is located in a position at which the film 24 covers the upper side of the base 80 and the packaging target object 3 .
- the packaging device 1 swings the holding portion 61 toward the second position (refer to an arrow 65 shown in FIG. 12 ).
- the packaging device 1 moves the first support portions 33 from the topmost position to the lowermost position along the first path (refer to an arrow 66 shown in FIG. 12 ).
- the guide roller 31 comes into contact with the film 24 from the upper side, and guides the film 24 in the downward direction.
- the film 24 is located in the position at which the film 24 covers the upper side of the base 80 and the packaging target object 3 .
- the guide roller 31 is located on the downstream side of and in the vicinity of the guide roller 71 . In this position, the guide roller 31 is passed from the first support portions 33 (refer to FIG. 3 ) to the second support portion 51 (refer to FIG. 3 ). When the first support portions 33 has moved to the lowermost position, the auxiliary roller 32 is located above the guide roller 71 .
- the packaging device 1 moves the second support portion 51 from the uppermost stream side to the lowermost stream side along the second path.
- the guide roller 31 that is supported by the second support portion 51 moves along the bottom surface of the base 80 from the upstream side to the downstream side along the second path.
- the film 24 extends downward from a position at which the film 24 covers the upper side of the base 80 and the packaging target object 3 .
- the film 24 comes into contact with the edge portion on the upper side of the base 80 and bends to the downstream side along the bottom surface of the base 80 .
- the film 24 is pressed onto the bottom surface of the base 80 toward the upstream side.
- the film 24 is bonded to an adhesion portion that is provided on the upstream side end portion of the bottom surface of the base 80 .
- the packaging device 1 moves the cutting portion 77 along the guide rails 74 from the left end to the right end.
- the blade portion 771 cuts a section of the film 24 that extends from the guide roller 31 toward the auxiliary roller 32 .
- tension is applied to the pulled out film 24 .
- tension is also applied to the film 24 that extends from the guide roller 31 toward the auxiliary roller 32 .
- the blade portion 771 can appropriately cut the film 24 .
- the leading edge of the film 24 and the end portion that is cut by the blade portion 771 are in a state of being bonded to the bottom surface of the base 80 .
- the packaging target object 3 is fixed on the top of the base 80 by the film 24 . As the film 24 is closely attached to the packaging target object 3 , the operator cannot directly touch the packaging target object 3 from the outside. The packaging target object 3 is protected by the film 24 . The packaging of the base 80 and the packaging target object 3 by the film 24 is thus complete.
- the packaging device 1 packages the base 80 and the packaging target object 3 in the manner described above.
- the film 24 passes beside (to the rear side of) the film roller 23 , is discharged to the outside from the discharge opening 26 and is pulled out (refer to FIG. 7 ).
- the leading edge of the film 24 is located outside the cassette case 25 .
- the cassette case 25 is positioned between the leading edge of the film 24 and the film roll 22 , the leading edge of the film 24 that has once been pulled out can be inhibited from sticking to the film roll 22 .
- the operator can efficiently perform an operation of mounting the film roll 22 in the packaging device 1 .
- the packaging target object 3 and the base 80 can be packaged while the film 24 is being pulled out. Because the film 24 may stretch and shrink, there may be cases in which the respective sections of the film 24 in the axial line direction (in the width direction of the film 24 ) pass the film guide roller 23 at varying speeds.
- the plurality of cylindrical members 232 (refer to FIG. 9 ) of the film guide roller 23 can rotate at mutually differing rotation speeds. Thus, even when the speeds of the respective sections of the film 24 in the axial line direction vary, the individual cylindrical members 232 can rotate along with the individual sections. As a result, the film cassette 21 can achieve smooth pulling out of the film 24 .
- the film cassette 21 includes the holes 255 and 256 (refer to FIG. 8 ).
- the gears 273 that rotate in accordance with the rotation of the film roll 22 are exposed to the outside by the holes 255 and 256 . Therefore, the gears 273 can mesh with the gears 113 (refer to FIG. 1 ) of the packaging device 1 via the holes 255 and 256 .
- the rotation speed of the gears 113 is regulated and therefore, the rotation speed of the film roll 22 , which rotates together with the rotation of the gears 273 , is also regulated.
- tension is applied to the film 24 that is being pulled out.
- the packaging device 1 can feed the film 24 in a state in which appropriate tension is applied to the film 24 .
- the tension is applied to the film 24 , compared to a case in which no tension is applied to the film 24 , the film 24 is more likely to be firmly attached to the packaging target object 3 .
- the gears 113 of the packaging device 1 may be rotary drive gears.
- the gears 113 that mesh with the gears 273 of the film cassette 21 may apply a motive force to cause the film roll 22 to rotate.
- the gears 273 of the film cassette 21 are exposed to the outside by the holes 255 and 256 .
- the cassette case 25 may have a shape, such as a rectangular box shape, other than the shape exemplified in the above-described embodiment.
- the cassette case 25 need not necessarily include the protruding portion 257 .
- the discharge opening 26 need not necessarily be provided on the protruding portion 257 . It is sufficient that the discharge opening 26 extend along the axial line direction of the film roll 22 and have a length (width) that is larger than the width of the film 24 .
- the film guide roller 23 may include a single cylindrical member that is long in the left-right direction and that can rotate around the periphery of the shaft portion 231 .
- the number of the plurality of cylindrical members 232 may be a number other than five illustrated in FIG. 9 .
- the film guide roller 23 may be, for example, a single roller that is rotatably supported by the cassette case 25 .
- the film guide roller 23 need not necessary be provided in the discharge opening 26 , and may be provided in the vicinity of the discharge opening 26 .
- the film guide roller 23 may be located in a position in the vicinity of the discharge opening 26 inside the cassette case 25 , on the side of the film roll 22 with respect to the discharge opening 26 .
- the path of the film 24 that is pulled out from the film roll 22 need not necessarily pass to the rear side of the film guide roller 23 .
- the path of the film 24 may pass to the front of the film guide roller 23 .
- the film cassette 21 need not necessarily include the gears 273 . In this case, the holes 255 and 256 need not be provided.
- the film cassette 21 may include the gear 273 on one side only in the axial line direction (on the left side or on the right side only). In other words, the film cassette 21 may include only one of the gears 273 .
- the manner of conveying the base 80 can be modified.
- the base 80 may be mounted on a conveyance member (for example, a tray on which the base 80 can be placed, or a member that can be mounted on the left and right edge portions of the base 80 ).
- the base 80 may be conveyed by the conveyance member being conveyed by the conveyance portion 40 .
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Basic Packing Technique (AREA)
- Replacement Of Web Rolls (AREA)
Abstract
A film cassette includes a film roll, a cassette case and a roller portion. The film roll is a wound film for packaging. The cassette case is configured to rotatably house the film roll, and includes a discharge opening from which the film pulled out from the film roll is discharged to the outside of the cassette case. The discharge opening extends in a direction parallel to a first rotation axis, which is a rotation axis of the film roll. The roller portion is rotatably supported by the cassette case in the vicinity of the discharge opening. The roller portion is rotatable around a second axis, which extends parallel to the first rotation axis.
Description
- This application claims priority to Japanese Patent Application No. 2012-107114, filed May 8, 2012, the content of which is hereby incorporated herein by reference in its entirety.
- The present disclosure relates to a film cassette that internally houses a packaging film.
- A packaging device is known that is configured to package a product. For example, a packaging machine is known that overlaps a product with a plastic film while the product is conveyed by a conveyor. By heating the plastic film using a heat sealing member, the packaging machine packages the product with the plastic film. The packaging machine pulls out the plastic film from a film roll of the plastic film, and feeds the film while positioning the film using rollers on a feed path.
- When mounting the film roll in the packaging machine, it is necessary for an operator to peel off a film, which is closely attached to the film roll, from the film roll and to form a feed path via a plurality of rollers. The film that has been peeled off from the film roll by the operator may stick to the film roll. As a result, it is possible that the operator cannot efficiently perform the operation of mounting the film roll in the packaging machine.
- Various embodiments of the broad principles derived herein provide a film cassette that allows an operator to efficiently perform an operation of mounting a film roll in a packaging device.
- Various embodiments herein provide a film cassette that includes a film roll, a cassette case, and a roller portion. The film roll is a wound film for packaging. The cassette case is configured to rotatably house the film roll. The cassette case includes a discharge opening from which the film pulled out from the film roll is discharged to the outside of the cassette case. The discharge opening extends in a direction parallel to a first rotation axis. The first rotation axis is a rotation axis of the film roll. The roller portion is rotatably supported by the cassette case in the vicinity of the discharge opening. The roller portion is rotatable around a second axis. The second rotation axis extends parallel to the first rotation axis.
- Exemplary embodiments will be described below in detail with reference to the accompanying drawings in which:
-
FIG. 1 is a perspective view of a packaging device 1 on which afilm cassette 21 is placed, as seen from the front; -
FIG. 2 is a perspective view of the packaging device 1 on which thefilm cassette 21 is placed, as seen from the rear; -
FIG. 3 is a perspective view showing internal structures of thefilm cassette 21 and the packaging device 1; -
FIG. 4 is a perspective view of thefilm cassette 21, as seen from the front; -
FIG. 5 is a perspective view of thefilm cassette 21, as seen from the rear; -
FIG. 6 is a perspective view showing the internal structure of thefilm cassette 21 in a state in which a right side half of acassette case 25 is removed; -
FIG. 7 is a longitudinal sectional view of thefilm cassette 21; -
FIG. 8 is a plan view of thefilm cassette 21; -
FIG. 9 is a plan view of afilm guide roller 23; -
FIG. 10 is a perspective view of acylindrical member 232; -
FIG. 11 is a first view showing a process in which the packaging device 1 packages apackaging target object 3 and abase 80; -
FIG. 12 is a second view showing the process in which the packaging device 1 packages thepackaging target object 3 and thebase 80; -
FIG. 13 is a third view showing the process in which the packaging device 1 packages thepackaging target object 3 and thebase 80; and -
FIG. 14 is a fourth view showing the process in which the packaging device 1 packages thepackaging target object 3 and thebase 80. - Hereinafter, an embodiment will be explained with reference to the drawings. In the following explanation, the lower left side, the upper right side, the upper left side, the lower right side, the upper side and the lower side of
FIG. 1 respectively define the front side, the rear side, the left side, the right side, the upper side and the lower side of a packaging device 1. - An outline of the packaging device 1 that uses a
film cassette 21 will be explained. The packaging device 1 is a device that, using afilm 24, packages an article 3 (hereinafter referred to as a “packaging target object 3”) that is placed on abase 80, along with the base 80 (refer toFIG. 14 ). Thebase 80 is, for example, a board that is rectangular in a plan view. While conveying thebase 80 from the rear toward the front, the packaging device 1 packages thebase 80 and the packaging target object 3 (refer toFIG. 11 toFIG. 14 ). In the following explanation, the front side of the packaging device 1 is also referred to as the downstream side in the conveyance direction and the rear side of the packaging device 1 is also referred to as the upstream side in the conveyance direction. - As shown in
FIG. 1 andFIG. 2 , the packaging device 1 includesside plate portions side plate portions side plate portions 11. Theside plate portions 11 each have a generally rectangular plate shape that is longer in the up-down direction. One surface (an inner surface) of theside plate portion 111 and one surface (an inner surface) of theside plate portion 112 face each other. Thefilm cassette 21 may be supported on the upper ends of theside plate portions side plate portions slit 17 is formed in the inner surface of each of theside plate portions 11. Theslit 17 extends in the up-down direction in generally the center in the front-rear direction, of each of theside plate portions 11. -
Gears 113 are provided on the upper ends of theside plate portions FIG. 1 andFIG. 2 ). Only thegear 113 on the upper end of theside plate portion 111 is illustrated inFIG. 1 andFIG. 2 . When thefilm cassette 21 is disposed on the upper ends of theside plate portions gears 113 mesh withgears 273 of thefilm cassette 21. A clutch spring (not shown in the drawings) regulates a rotation speed of thegears 113. - The
film cassette 21 internally houses a film roll 22 (refer toFIG. 7 ). Thefilm cassette 21 will be explained in more detail later. Thebase 80 on which thepackaging target object 3 is placed may be conveyed from the upstream side toward the downstream side in the conveyance direction, below thefilm cassette 21 and between theside plate portions - As shown in
FIG. 1 , end portions of theside plate portions 11 on the downstream side in the conveyance direction support a first receivingtray 12. The shape of the first receivingtray 12 is a generally rectangular plate shape that is longer in the left-right direction in a plan view. Hereinafter, a top surface of the first receivingtray 12 is referred to as afirst support surface 14. Thefirst support surface 14 is positioned on the downstream side in the conveyance direction of a conveyance portion 40 (to be described later), and supports thebase 80 that is conveyed by theconveyance portion 40. A pair ofguide portions 16 are provided on a left edge portion and a right edge portion of the first receivingtray 12.Groove portions 164 that are recessed in the left-right direction are provided on lower ends of theguide portions 16, respectively. Thebase 80 is guided along thegroove portions 164. - As shown in
FIG. 2 , end portions of theside plate portions 11 on the upstream side in the conveyance direction support asecond receiving tray 13. The shape of the second receivingtray 13 is a generally rectangular plate shape that is longer in the left-right direction in a plan view. Hereinafter, a top surface of the second receivingtray 13 is referred to as asecond support surface 15. Thesecond support surface 15 is positioned on the upstream side in the conveyance direction of theconveyance portion 40, and supports the base 80 that is conveyed by theconveyance portion 40. - As shown in
FIG. 1 andFIG. 2 , thefirst support surface 14 of the first receivingtray 12 and thesecond support surface 15 of the second receivingtray 13 form the same flat surface. The base 80 on which thepackaging target object 3 is placed may be conveyed on the flat surface from the upstream side toward the downstream side in the conveyance direction. Hereinafter, the flat surface that is formed by thefirst support surface 14 of the first receivingtray 12 and thesecond support surface 15 of the second receivingtray 13 and that is the flat surface along which the conveyedbase 80 passes is referred to as a conveyance surface. - An internal structure of the packaging device 1 will be explained with reference to
FIG. 1 toFIG. 3 ,FIG. 11 andFIG. 13 . In the packaging device 1, theside plate portions 11 includes theconveyance portion 40 shown inFIG. 3 . Theconveyance portion 40 includes a pair of left andright conveyance rollers 41 and a pair of left and right urgingrollers 42. Theconveyance rollers 41 are provided below the conveyance surface. The urgingrollers 42 are provided above the conveyance surface. Theconveyance rollers 41 and the urgingrollers 42 are disposed in positions facing each other, with the conveyance surface located in between. - When the
base 80 is conveyed between theside plate portions conveyance rollers 41 and the urgingrollers 42 come into contact with a left edge portion and a right edge portion of thebase 80. Theconveyance rollers 41 may be geared rollers, for example. Theconveyance rollers 41 may rotate in a state in which theconveyance rollers 41 are in contact with the base 80 from below. The urgingrollers 42 may be wheel-shaped rubber rollers, for example. The urgingrollers 42 may downwardly urge the base 80 in a state in which the urgingrollers 42 are in contact with the base 80 from above. The base 80 that is held between theconveyance rollers 41 and the urgingrollers 42 may be conveyed from the upstream side toward the downstream side in the conveyance direction, in accordance with rotation of theconveyance rollers 41. - As shown in
FIG. 1 toFIG. 3 , the packaging device 1 includesguide rollers guide rollers side plate portions guide roller 71 is positioned between thesecond support surface 15 and theconveyance portion 40. Theguide roller 73 is positioned between thefirst support surface 14 and theconveyance portion 40. - The
guide roller 71 includes ashaft portion 711 and a plurality ofroller portions 712. Theguide roller 73 includes ashaft portion 731 and a plurality ofroller portions 732. Theshaft portions side plate portions roller portions 712 are rotatably supported on theshaft portion 711 at equal intervals in the axial direction of theshaft portion 711. The plurality ofroller portions 732 are rotatably supported on theshaft portion 731 at equal intervals in the axial direction of theshaft portion 731. Theguide rollers conveyance rollers 41 and the urgingrollers 42, from below, between the first receivingtray 12 and the second receivingtray 13. Theguide rollers base 80, which is conveyed from the upstream side toward the downstream side in the conveyance direction, from the second receivingtray 13 to the first receivingtray 12. - As shown in
FIG. 3 , the packaging device 1 includes a column-shaped holdingroller 72 that is positioned on the upstream side of theconveyance portion 40 and below the conveyance surface. The holdingroller 72 extends in the left-right direction. The left and right end portions of the holdingroller 72 are rotatably supported by a holdingportion 61. The holdingportion 61 is configured to swing. The holdingportion 61 can switch between a first position and a second position. The first position is a position (refer toFIG. 12 ) in which the holdingroller 72 is disposed close to theguide roller 71 on the downstream side of theguide roller 71 in the conveyance direction. The second position is a position (refer toFIG. 13 ) in which the holdingroller 72 is separated, in the downward direction, from theguide roller 71. When the holdingportion 61 is in the first position, the holdingroller 72 and theguide roller 71 can clamp, between them, thefilm 24 that is pulled out of thefilm cassette 21. - As shown in
FIG. 3 andFIG. 11 , the packaging device 1 includes twoguide rails 74. The guide rails 74 are mounted between theside plate portions guide roller 73. The guide rails 74 support a cuttingportion 77 such that the cuttingportion 77 can move in the left-right direction. The cuttingportion 77 has a blade portion 771 (refer toFIG. 11 ) that protrudes upward from the top surface. Theblade portion 771 extends in the left-right direction. When the cuttingportion 77 moves in the left-right direction along the guide rails 74, theblade portion 771 cuts thefilm 24. - As shown in
FIG. 3 andFIG. 11 , the packaging device 1 includes aguide roller 31 and anauxiliary roller 32 that each have a generally column shape. Theguide roller 31 and theauxiliary roller 32 extend in the left-right direction. The left end portion and the right end portion of theguide roller 31 are supported by a pair of left and rightfirst support portions 33, such that theguide roller 31 is rotatably and detachably supported. The left end portion and the right end portion of theauxiliary roller 32 are rotatably supported by the pair offirst support portions 33. - The
first support portions 33 can move in the up-down direction along the slits 17 (refer toFIG. 1 andFIG. 2 ) that are provided in theside plate portions 11. When thefirst support portions 33 move in the up-down direction along theslits 17, theguide roller 31 and theauxiliary roller 32 move in the up-down direction (refer toFIG. 12 andFIG. 13 ). Hereinafter, a path of theguide roller 31 that moves in the up-down direction due to the movement of thefirst support portions 33 is sometimes referred to as a first path. -
FIG. 3 andFIG. 11 show a state in which thefirst support portions 33 are in a position furthest to the top. Hereinafter, the position furthest to the top in a movable range of thefirst support portions 33 is referred to as a topmost position. As shown inFIG. 3 , when thefirst support portions 33 are in the topmost position, thefirst support portions 33 are positioned on both the right and left sides of the film cassette 21 (refer toFIG. 1 ). As shown inFIG. 3 andFIG. 11 , when thefirst support portions 33 are in the topmost position, theguide roller 31 and theauxiliary roller 32 are positioned above the conveyance surface and below thefilm cassette 21. -
FIG. 13 shows a state in which the first support portions 33 (refer toFIG. 3 ) are in a position furthest to the bottom. Hereinafter, the position furthest to the bottom in the movable range of thefirst support portions 33 is referred to as a lowermost position. In the packaging device 1, asecond support portion 51 and the holding portion 61 (refer toFIG. 3 ) are positioned below the positions of theguide roller 31 and theauxiliary roller 32 when thefirst support portions 33 are in the lowermost position. Thesecond support portion 51 is configured to move in the conveyance direction. Thesecond support portion 51 is configured to support theguide roller 31 that is detached from thefirst support portions 33. Theguide roller 31 may move in the conveyance direction (refer toFIG. 13 andFIG. 14 ) in accordance with the movement of thesecond support portion 51 in the conveyance direction. Hereinafter, a path of theguide roller 31 that moves in the conveyance direction due to the movement of thesecond support portion 51 is sometimes referred to as a second path. Theguide roller 31 may move along the first path and the second path due to the movement of thefirst support portions 33 and thesecond support portion 51. - The
film cassette 21 will be explained with reference toFIG. 3 toFIG. 10 . In the following explanation, the lower left side, the upper right side, the upper left side, the lower right side, the upper side and the lower side define, respectively, the front side, the rear side, the left side, the right side, the upper side and the lower side of thefilm cassette 21. - As shown in
FIG. 3 toFIG. 8 , thefilm cassette 21 includes the film roll 22 (refer toFIG. 6 ), acassette case 25 and afilm guide roller 23. Thecassette case 25 is configured to house thefilm roll 22 inside. Thefilm roll 22 has a generally cylindrical shape and extends in the left-right direction. The left end portion and the right end portion of thefilm roll 22 are rotatably supported by the left end portion and the right end portion of thecassette case 25. In other words, a rotation axis of thefilm roll 22 extends in the left-right direction. In the following explanation, the left-right direction of thefilm cassette 21 is sometimes referred to as an axial line direction. As shown inFIG. 3 andFIG. 7 , thefilm roll 22 includes a cylindrical shapedcore portion 221 and thefilm 24 for packaging that is wound around the periphery of thecore portion 221. - As shown in
FIG. 6 , a pair of fixingmembers 27 are fixed to both end portions in the axial line direction (the left-right direction) of thecore portion 221. InFIG. 6 , only the rightside fixing member 27 is illustrated. Each of the fixingmembers 27 includes awall portion 271, acylinder portion 272 and agear 273. Thewall portion 271 has a round plate shape in a side view. The diameter of thewall portion 271 is substantially the same as the diameter of thefilm roll 22 when thefilm 24 is wound to the maximum. - The
cylinder portion 272 protrudes from thewall portion 271 to a specific length. The outer diameter of thecylinder portion 272 is substantially the same as the inner diameter of thecore portion 221 of thefilm roll 22. The fixingmember 27 is fixed to thefilm roll 22 by thecylinder portion 272 being fitted into the inner periphery of thecore portion 221 from the left or from the right of thefilm roll 22. Thewall portion 271 is thus disposed to the right end or to the left end of thefilm roll 22. A column-shaped shaft portion (not shown in the drawings) protrudes from a center portion of thewall portion 271 toward the outside in the axial line direction. The shaft portion is fixed to thewall portion 271. Thegear 273 is fixed around the periphery of the shaft portion. When the fixingmember 27 is fixed to the left end or the right end of thefilm roll 22, thegear 273 is positioned on the outside in the axial line direction of thefilm roll 22. In other words, thegear 273 protrudes from the left end portion or the right end portion of thefilm roll 22, in either the left direction or the right direction, along the rotation axis of thefilm roll 22. Thegears 273 of the pair of left and right fixingmembers 27 are arranged, respectively, on the inner side of left and right protrudingportions 253 and 254 (to be explained later) of the cassette case 25 (refer toFIG. 8 ). When thefilm roll 22 rotates due to thefilm 24 being pulled out, the fixingmembers 27 also rotate. As a result, thegears 273 rotate around the rotation axis of thefilm roll 22 in accordance with the rotation of thefilm roll 22. - As shown in
FIG. 4 , thecassette case 25 includes anupper case 251 and alower case 252. Thecassette case 25 is a housing (refer toFIG. 5 andFIG. 7 ) that has a generally column-shaped outer form, and a rear end portion thereof protrudes in the downward direction. As shown inFIG. 8 , the protrudingportion 253 protrudes toward the right from the right surface of thecassette case 25. The protrudingportion 254 protrudes toward the left from the left surface of thecassette case 25. Ahole 255 is provided in the front surface of the protrudingportion 253. Ahole 256 is provided in the front surface of the protrudingportion 254. Theholes portions gears 273 to the outside on the right side and the left side, respectively. - As shown in
FIG. 5 andFIG. 7 , a protrudingportion 257 is provided on the lower portion of the rear end portion of thecassette case 25. The protrudingportion 257 protrudes in the downward direction from the left end portion to the right end portion. The protrudingportion 257 includes adischarge opening 26 on the lower end thereof (refer toFIG. 7 ). Thedischarge opening 26 is a hole that extends from the left end portion to the right end portion of the protrudingportion 257, in parallel to the axial line direction. Thefilm 24 that is pulled out from thefilm roll 22 is discharged to the outside of thecassette case 25 from thedischarge opening 26. - As shown in
FIG. 6 andFIG. 7 , thefilm guide roller 23 is provided in thedischarge opening 26, along the axial line direction. As shown inFIG. 9 , thefilm guide roller 23 includes ashaft portion 231 and a plurality ofcylindrical members 232. Theshaft portion 231 is disposed in the axial line direction. As shown inFIG. 4 andFIG. 5 , the left and right end portions of theshaft portion 231 are supported byholes 258 that are provided, respectively, in the lower left end portion and the lower right end portion of the protrudingportion 257. In the present embodiment, theshaft portion 231 does not rotate. However, theshaft portion 231 may be rotatably supported at the protrudingportion 257. - As shown in
FIG. 10 , each of thecylindrical members 232 is formed in a cylindrical shape having a hole in the center portion thereof. As shown inFIG. 9 , the plurality of cylindrical members 232 (fivecylindrical members 232 in the example shown inFIG. 9 ) are rotatably provided around the periphery of theshaft portion 231. Thecylindrical members 232 are aligned in the axial line direction. As shown inFIG. 7 , thefilm 24 that is pulled out from thefilm roll 22 passes behind thefilm guide roller 23 and is discharged to the outside from thedischarge opening 26. When thefilm 24 is pulled out, thecylindrical members 232 rotate in accordance with the pulling out of thefilm 24, due to contact resistance with thefilm 24. - As shown in
FIG. 5 andFIG. 7 , a recessedportion 259, which is recessed in the upward direction, is provided on the front of the protrudingportion 257 of thecassette case 25. When thecassette case 25 is mounted in the packaging device 1, and when thefirst support portions 33 are in the topmost position, theauxiliary roller 32 is positioned in the recessed portion 259 (refer toFIG. 11 ). - Operations of the packaging device 1 when the
packaging target object 3 and the base 80 are packaged using thefilm 24 will be explained with reference toFIG. 11 toFIG. 14 . - First, an operator arranges the
film cassette 21 on the upper ends of the side plate portions 11 (refer toFIG. 1 andFIG. 11 ). The protrudingportions film cassette 21 are supported on the upper ends of theside plate portions 11. Thegears 273 that are exposed to the outside from theholes portions gears 113 provided on the upper ends of the side plate portions 11 (refer toFIG. 1 ). - The operator manually pulls out the
film 24 that has been discharged from the discharge opening 26 of thefilm cassette 21. The operator arranges the leading end of the pulled outfilm 24 on the downstream side of theguide roller 71. The operator operates the packaging device 1 and swings the holdingportion 61 to the first position. The holdingroller 72 moves to a position on the downstream side of and in the vicinity of theguide roller 71. As shown inFIG. 11 , the leading edge of thefilm 24 that is pulled out from thefilm cassette 21 is clamped by theguide roller 71 and the holdingroller 72 from the upstream side and the downstream side in the conveyance direction. - As described above, the rotation speed of the
gears 113 of the packaging device 1, which mesh with thegears 273 of thefilm cassette 21, is regulated. Therefore, when thefilm 24 is pulled out, the rotation speed of thefilm roll 22 that rotates along with thegears 273 is also regulated. As a result, tension is applied to the pulled outfilm 24. Thus, thefilm 24 extends in a straight manner in a direction that is generally orthogonal to the conveyance surface (namely, in the up-down direction) (refer toFIG. 11 ). - In
FIG. 11 , the first support portions 33 (refer toFIG. 3 ) are disposed in the topmost position. Theauxiliary roller 32 is positioned in the recessedportion 259 of thefilm cassette 21. Thesecond support portion 51 is disposed on the uppermost stream side in the conveyance direction. The cuttingportion 77 is located on the left end. The operator places thepackaging target object 3 on thebase 80. The operator places thebase 80 on which thepackaging target object 3 is placed on thesecond support surface 15 of the second receivingtray 13. By sending the base 80 toward the downstream side, the operator arranges the leading edge (the downstream side edge) of the base 80 on theconveyance portion 40. At this time, the downstream side edge of the base 80 moves, sequentially, over the second receivingtray 13, theguide roller 71 and the holdingroller 72. The downstream side edge of thebase 80 comes into contact with thefilm 24. - The operator sends the base 80 further toward the downstream side. The downstream side edge of the
base 80 pushes thefilm 24 to the downstream side. A sensor 431 (refer toFIG. 1 ) is provided slightly to the upstream side of theconveyance portion 40. The downstream side edge of thebase 80 pushes thesensor 431 downward. Thesensor 431 is thus turned to an ON state. When thesensor 431 is in the ON state, the packaging device 1 starts to rotate theconveyance rollers 41. When the downstream side edge of thebase 80 is placed on theconveyance portion 40, theconveyance portion 40 clamps the base 80 from above and below. Theconveyance portion 40 appropriately conveys the base 80 toward the downstream side. - When the base 80 moves to the downstream side, the downstream side edge of the
base 80 and the downstream side edge of thepackaging target object 3 press against thefilm 24. Thefilm 24 bends at a section that comes into contact with thebase 80 and at a section that comes into contact with thepackaging target object 3. As the base 80 moves toward the downstream side, thefilm 24 is gradually pulled out from thefilm cassette 21. As described above, the rotation speed of thegears 113 is regulated and so tension is applied to the pulled outfilm 24. Therefore, the film is pushed strongly against the downstream side of thebase 80 and thepackaging target object 3. Thefilm 24 is firmly attached to thebase 80 and to thepackaging target object 3 in a position at which thefilm 24 covers the downstream side of thebase 80 and thepackaging target object 3. - Since a force toward the downstream side is applied to the
film 24, the leading edge of thefilm 24 is separated from theguide roller 71 and the holdingroller 72. The leading edge of thefilm 24 moves along with thebase 80 and passes through between the base 80 and the holdingroller 72. The holdingroller 72 presses the leading edge of thefilm 24 against the bottom surface of thebase 80, from below. The leading edge of thefilm 24 is bonded to an adhesion portion that is provided on the bottom surface of and on the downstream side of thebase 80. - The
conveyance portion 40 continuously conveys the base 80 to the downstream side. When the base 80 passes over the sensor 431 (refer toFIG. 1 ), thesensor 431 is turned to an OFF state. The packaging device 1 stops the rotation of theconveyance rollers 41. As shown inFIG. 12 , thefilm 24 is located in a position at which thefilm 24 covers the upper side of thebase 80 and thepackaging target object 3. - As shown in
FIG. 12 andFIG. 13 , the packaging device 1 swings the holdingportion 61 toward the second position (refer to anarrow 65 shown inFIG. 12 ). Next, the packaging device 1 moves thefirst support portions 33 from the topmost position to the lowermost position along the first path (refer to anarrow 66 shown inFIG. 12 ). Theguide roller 31 comes into contact with thefilm 24 from the upper side, and guides thefilm 24 in the downward direction. Thefilm 24 is located in the position at which thefilm 24 covers the upper side of thebase 80 and thepackaging target object 3. - As shown in
FIG. 13 , when thefirst support portions 33 move to the lowermost position, theguide roller 31 is located on the downstream side of and in the vicinity of theguide roller 71. In this position, theguide roller 31 is passed from the first support portions 33 (refer toFIG. 3 ) to the second support portion 51 (refer toFIG. 3 ). When thefirst support portions 33 has moved to the lowermost position, theauxiliary roller 32 is located above theguide roller 71. - As shown in
FIG. 13 andFIG. 14 , the packaging device 1 moves thesecond support portion 51 from the uppermost stream side to the lowermost stream side along the second path. Theguide roller 31 that is supported by thesecond support portion 51 moves along the bottom surface of the base 80 from the upstream side to the downstream side along the second path. As shown inFIG. 14 , thefilm 24 extends downward from a position at which thefilm 24 covers the upper side of thebase 80 and thepackaging target object 3. Thefilm 24 comes into contact with the edge portion on the upper side of thebase 80 and bends to the downstream side along the bottom surface of thebase 80. In the course of the movement of theguide roller 31 to the downstream side, thefilm 24 is pressed onto the bottom surface of the base 80 toward the upstream side. As a result, thefilm 24 is bonded to an adhesion portion that is provided on the upstream side end portion of the bottom surface of thebase 80. - Next, the packaging device 1 moves the cutting
portion 77 along the guide rails 74 from the left end to the right end. Theblade portion 771 cuts a section of thefilm 24 that extends from theguide roller 31 toward theauxiliary roller 32. As described above, tension is applied to the pulled outfilm 24. Thus, tension is also applied to thefilm 24 that extends from theguide roller 31 toward theauxiliary roller 32. As a result, theblade portion 771 can appropriately cut thefilm 24. - The leading edge of the
film 24 and the end portion that is cut by theblade portion 771 are in a state of being bonded to the bottom surface of thebase 80. Thepackaging target object 3 is fixed on the top of the base 80 by thefilm 24. As thefilm 24 is closely attached to thepackaging target object 3, the operator cannot directly touch thepackaging target object 3 from the outside. Thepackaging target object 3 is protected by thefilm 24. The packaging of thebase 80 and thepackaging target object 3 by thefilm 24 is thus complete. - The packaging device 1 packages the
base 80 and thepackaging target object 3 in the manner described above. In the present embodiment, thefilm 24 passes beside (to the rear side of) thefilm roller 23, is discharged to the outside from thedischarge opening 26 and is pulled out (refer toFIG. 7 ). In other words, the leading edge of thefilm 24 is located outside thecassette case 25. In this case, as thecassette case 25 is positioned between the leading edge of thefilm 24 and thefilm roll 22, the leading edge of thefilm 24 that has once been pulled out can be inhibited from sticking to thefilm roll 22. Thus, there is no need for the operator to search for the leading edge of thefilm 24 that is sticking to thefilm roll 22 and to peel off thefilm 24 from thefilm roll 22. Thus, the operator can efficiently perform an operation of mounting thefilm roll 22 in the packaging device 1. - The
packaging target object 3 and the base 80 can be packaged while thefilm 24 is being pulled out. Because thefilm 24 may stretch and shrink, there may be cases in which the respective sections of thefilm 24 in the axial line direction (in the width direction of the film 24) pass thefilm guide roller 23 at varying speeds. The plurality of cylindrical members 232 (refer toFIG. 9 ) of thefilm guide roller 23 can rotate at mutually differing rotation speeds. Thus, even when the speeds of the respective sections of thefilm 24 in the axial line direction vary, the individualcylindrical members 232 can rotate along with the individual sections. As a result, thefilm cassette 21 can achieve smooth pulling out of thefilm 24. - Further, the
film cassette 21 includes theholes 255 and 256 (refer toFIG. 8 ). Thegears 273 that rotate in accordance with the rotation of thefilm roll 22 are exposed to the outside by theholes gears 273 can mesh with the gears 113 (refer toFIG. 1 ) of the packaging device 1 via theholes gears 113 is regulated and therefore, the rotation speed of thefilm roll 22, which rotates together with the rotation of thegears 273, is also regulated. As a result, tension is applied to thefilm 24 that is being pulled out. Thus, the packaging device 1 can feed thefilm 24 in a state in which appropriate tension is applied to thefilm 24. When the tension is applied to thefilm 24, compared to a case in which no tension is applied to thefilm 24, thefilm 24 is more likely to be firmly attached to thepackaging target object 3. - The above-described embodiment can be modified in various ways. For example, the
gears 113 of the packaging device 1 may be rotary drive gears. In this case, thegears 113 that mesh with thegears 273 of thefilm cassette 21 may apply a motive force to cause thefilm roll 22 to rotate. Thegears 273 of thefilm cassette 21 are exposed to the outside by theholes film 24 by regulating the rotation speed of thefilm roll 22, or to apply the motive force that causes thefilm roll 22 to rotate and so on. - As long as the
cassette case 25 can be mounted on the packaging device 1 and thecassette case 25 can house thefilm roll 22 inside in a rotatable manner, thecassette case 25 may have a shape, such as a rectangular box shape, other than the shape exemplified in the above-described embodiment. Thecassette case 25 need not necessarily include the protrudingportion 257. Thedischarge opening 26 need not necessarily be provided on the protrudingportion 257. It is sufficient that thedischarge opening 26 extend along the axial line direction of thefilm roll 22 and have a length (width) that is larger than the width of thefilm 24. - In place of the plurality of
cylindrical members 232, thefilm guide roller 23 may include a single cylindrical member that is long in the left-right direction and that can rotate around the periphery of theshaft portion 231. The number of the plurality ofcylindrical members 232 may be a number other than five illustrated inFIG. 9 . Thefilm guide roller 23 may be, for example, a single roller that is rotatably supported by thecassette case 25. Thefilm guide roller 23 need not necessary be provided in thedischarge opening 26, and may be provided in the vicinity of thedischarge opening 26. For example, thefilm guide roller 23 may be located in a position in the vicinity of thedischarge opening 26 inside thecassette case 25, on the side of thefilm roll 22 with respect to thedischarge opening 26. The path of thefilm 24 that is pulled out from thefilm roll 22 need not necessarily pass to the rear side of thefilm guide roller 23. Depending on the structure of the packaging device in which thefilm cassette 21 is used, the path of thefilm 24 may pass to the front of thefilm guide roller 23. - The
film cassette 21 need not necessarily include thegears 273. In this case, theholes film cassette 21 may include thegear 273 on one side only in the axial line direction (on the left side or on the right side only). In other words, thefilm cassette 21 may include only one of thegears 273. - The manner of conveying the base 80 can be modified. For example, the
base 80 may be mounted on a conveyance member (for example, a tray on which thebase 80 can be placed, or a member that can be mounted on the left and right edge portions of the base 80). The base 80 may be conveyed by the conveyance member being conveyed by theconveyance portion 40. - The apparatus and methods described above with reference to the various embodiments are merely examples. It goes without saying that they are not confined to the depicted embodiments. While various features have been described in conjunction with the examples outlined above, various alternatives, modifications, variations, and/or improvements of those features and/or examples may be possible. Accordingly, the examples, as set forth above, are intended to be illustrative. Various changes may be made without departing from the broad spirit and scope of the underlying principles.
Claims (3)
1. A film cassette comprising:
a film roll that is a wound film for packaging;
a cassette case configured to rotatably house the film roll, the cassette case including a discharge opening from which the film pulled out from the film roll is discharged to the outside of the cassette case, the discharge opening extending in a direction parallel to a first rotation axis, the first rotation axis being a rotation axis of the film roll; and
a roller portion rotatably supported by the cassette case in the vicinity of the discharge opening, the roller portion being rotatable around a second axis, the second rotation axis extending parallel to the first rotation axis.
2. The film cassette according to claim 1 , wherein
the roller portion includes:
a shaft portion extending in a central portion of the roller portion along the second rotation axis; and
a plurality of cylindrical members, each of the cylindrical members being rotatably provided around a periphery of the shaft portion, along the second rotation axis.
3. The film cassette according to claim 1 , further comprising:
a first gear protruding from an end portion of the film roll along the first rotation axis, the first gear being configured to rotate around the first rotation axis in accordance with a rotation of the film roll,
wherein
the cassette case includes a hole that exposes the first gear to the outside.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012107114A JP2013233966A (en) | 2012-05-08 | 2012-05-08 | Film cassette for packaging |
JP2012-107114 | 2012-05-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20130298503A1 true US20130298503A1 (en) | 2013-11-14 |
Family
ID=47901808
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/799,119 Abandoned US20130298503A1 (en) | 2012-05-08 | 2013-03-13 | Film cassette |
Country Status (4)
Country | Link |
---|---|
US (1) | US20130298503A1 (en) |
EP (1) | EP2662321A3 (en) |
JP (1) | JP2013233966A (en) |
CN (1) | CN103387061A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013110944A1 (en) * | 2013-10-02 | 2015-04-02 | Krones Aktiengesellschaft | Method and device for changing carrier units with flat packaging material wound on supply rolls within a packaging machine |
US9061837B2 (en) | 2013-02-12 | 2015-06-23 | Brother Kogyo Kabushiki Kaisha | Packaging device |
US20160176551A1 (en) * | 2013-08-26 | 2016-06-23 | Brother Kogyo Kabushiki Kaisha | Packaging Device |
US9434493B2 (en) | 2012-11-15 | 2016-09-06 | Brother Kogyo Kabushiki Kaisha | Packaging device |
US9481481B2 (en) | 2012-11-15 | 2016-11-01 | Brother Kogyo Kabushiki Kaisha | Packaging device |
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US9434493B2 (en) | 2012-11-15 | 2016-09-06 | Brother Kogyo Kabushiki Kaisha | Packaging device |
US9481481B2 (en) | 2012-11-15 | 2016-11-01 | Brother Kogyo Kabushiki Kaisha | Packaging device |
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Also Published As
Publication number | Publication date |
---|---|
EP2662321A2 (en) | 2013-11-13 |
JP2013233966A (en) | 2013-11-21 |
CN103387061A (en) | 2013-11-13 |
EP2662321A3 (en) | 2014-08-20 |
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Legal Events
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Owner name: BROTHER KOGYO KABUSHIKI KAISHA, JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:TAKAHASHI, TOSHIHIRO;IMAMAKI, TERUO;REEL/FRAME:029982/0970 Effective date: 20130304 |
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STCB | Information on status: application discontinuation |
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