JP4184271B2 - Pack with thread for tear release, manufacturing method and apparatus thereof - Google Patents

Description

  The present invention relates to a rectangular parallelepiped pack, in particular, a cigarette pack including an outer packaging material made of a film and an open-end type tear-opening thread that fits the outer packaging material. The invention also relates to a method and apparatus for manufacturing such a pack.

  Packs of various shapes and forms often include an outer wrapping made of film or similar wrapping material to protect the contents of the pack. To open the pack, i.e. to open the outer wrapping material, the outer wrapping material is often provided with a tear-release thread or tear-release strip that is secured to the outer wrapper by gluing or sealing. This outer wrapping material can be cut by a tear-open thread whose grip end is gripped, thus removing the outer wrapping material.

  The present invention relates to such a pack, and more particularly to a (thin) cardboard rectangular solid pack.

  The object of this invention is to fit a tear release thread or tear release strip to the outer packaging so that when the tear release thread is used, the entire outer packaging is reliably removed.

  To achieve this objective, the pack of the present invention is such that the tear-release thread is moved from one (upper) pack corner to the front wall and / or the corresponding rear wall region of the large surface area of the pack ( It is characterized by extending almost diagonally to the pack corner (at the bottom).

  The diagonal trajectory drawn (more or less) by the tear-open thread in at least one region of the large surface area pack wall allows the outer wrapping material to be maximally separated by the tear-open strip, so that the outer wrap The remaining part of the material can be easily removed by pulling from the corner of the pack. The invention is therefore particularly suitable for a hinged cigarette pack of the type comprising a shrink film as the outer packaging.

  The tear-open thread is such that the transverse section of the straight thread is arranged in the narrow upright side area, in particular adjacent the end and bottom walls, and any In some cases, these thread sections extending in the same direction, i.e. diagonal thread sections of the front wall and the rear wall, are arranged so that each of these walls is connected.

  One feature is the production of a blank (film) web for outer packaging with a continuous tear release thread or tear release strip. According to one particular embodiment, a tear release thread or tear release strip is applied to a material web made of film, paper, etc., while the material is continuously transferred to the material web for tear release. The thread is moved across the transport direction of the (film) web according to the form of the thread to be manufactured by means of a thread guide which is precisely controlled. This continuous tear release thread is fed to the material web in a more or less serpentine form with curved transitions.

  According to another important embodiment, a thread section or tear release thread or tear release strip completed in shape and length is applied to the continuous (film) web. This tear-open strip is cut from the thread by a cutting die that gives one contour and is placed directly on the web according to the position of the blank for the outer packaging.

  The device according to the invention for applying a continuous tear-release thread or tear-release strip to a continuously moving web has a special guide member for the tear-release thread, i.e. a guide roller. This guide roller has a dual function. That is, it functions to arrange the tear-release thread on the web surface, and at the same time functions as one guide member. The guide roller is moved by the controlled gear mechanism in a direction perpendicular to the web transfer direction, i.e., in a direction transverse to the web transfer direction, so that the tear-release thread has a curved shape and is in a curved shape. Moved to. In this case, the driving action of the tear-release thread drawn from the thread reel is preferably taken into account on the one hand on the relative movement between the web which is preferably transported continuously at a uniform speed and on the other hand with the tear-release thread. To be controlled.

  The device of the present invention for providing a stylized thread section or finished tear-release thread has a stylized or curved cutting notch so that in each operating cycle the web or web While the section is temporarily stationary, the tear-release thread shaped in accordance with the present invention is disconnected from the thread web fed in the transverse direction and properly positioned on the (film) web surface. Specifically, it is correctly placed in the blank area that is cut off from the (film) web.

  Both the process and equipment are advantageously set for dual web operation.

  Further details of the method and apparatus of the present invention for manufacturing the pack and outer packaging of the present invention will be specifically described below with reference to the accompanying drawings.

  The attached drawings show, as a preferred application, a cigarette pack, more precisely a box with hinge lid (hinge lid pack) 10 and a multipack for a plurality of cigarette packs, ie a cigarette multipack 11 (FIG. 11). The packs are hard packs made of (thin) cardboard, each surrounded by an outer wrapping material. The outer wrapping material consists of a (thin) transparent plastic film, in particular a shrink film made of cellophane. Nevertheless, it can be made of other packaging materials such as paper, for example.

  The blanks 12, 13 forming the outer packaging material include a front wall 14, a rear wall 15, and side walls 16, 17. The blanks 12 and 13 also form the end wall 18 as well as the bottom wall 19 (the hinged box 10). The side wall 16 is provided as a continuous material strip between the front wall 14 and the rear wall 15, while the opposite side wall 17 has one outer side flap 20 and one inner side. Part flap 21 is included. The two side flaps 20, 21 overlap each other and are connected to each other by sealing or gluing. End wall 18 and bottom wall 19 include end flaps 22, 23 that extend the entire length of blanks 12, 13.

  As a result, the blanks 12, 13 are folded in a U-shape around the pack 10, i.e. the box 10 with hinge lid or the multipack 11 for cigarettes, as is known in the first folding step. At first, the side flaps 20 and 21 protruding beyond the pack are bent one after another in a partially overlapping state (see FIGS. 1 and 2). The end flaps 22, 23 are then folded to form the end wall 18 and the bottom wall 19, respectively.

  In order to open the pack unit or outer wrapping material, the tear release thread 24 is fitted to the pack surface or the surface of the outer wrapping material. In practice, the strip-like tear release thread 24 is preferably connected to the inside of the blanks 12, 13 by gluing or sealing. A grip tab 25 is formed integrally with the blanks 12 and 13 at one end of the open-end type tear-off thread 24 and extends to the side wall 17 or the boundary of the side flap 20 when the pack is completed. So you can grip with your hands. With the help of this grip tab 25, the tear release thread 24 is pulled apart and the outer wrapping or blank 12, 13 is cut in this process.

  The tear-release thread 24 is fitted to the surface of the blanks 12, 13 in a special form so that the outer wrapping is always cut diagonally in the region of the large surface area packed area, as it is cut off. . By this, the corner cap of the outer packaging material to be formed can be easily separated by pulling it diagonally.

  In the region of the front wall 14 and the rear wall 15, the (one line) tear release thread 24 is such that the release thread 24 more or less follows a diagonal trajectory (in a common imaginary diagonal plane) It is fitted to the surfaces of the blanks 12 and 13. Thus, the thread sections 26, 27 extend approximately from one bottom pack corner 28 to the opposite pack corner 29. Illustratively, the thread sections 26, 27 extend a small distance from the associated pack corners 28, 29 and thus extend from the bottom wall 19 and the end wall 18. In the area adjacent to these pack corners 28, 29, ie at the ends of the thread sections 26, 27, the tear-release thread has the curved portion 30 as a transition area to the straight thread sections 31, 32 in the transverse direction. Form. One continuous thread section 31 extends in the region of the continuous side wall 16 across the side wall, directly adjacent to the bottom wall 19 and extends above it. The other thread section 32 is adjacent to the upper region, the end wall 18, and extends to the region of the directly below-side wall 17. This thread section 32 includes two partially overlapping subsections. Therefore, the tear release threads are arranged so that their ends overlap each other. In the region of the outer side flap 20, one grip tab 25 is provided on the segment of the thread section 323.

  One feature is the production of blanks 12, 13 from the continuous web 33, which are cut from the continuous web along the cut 69 in the blank subassembly 34 of the packaging machine (see FIG. 3). Disconnected. The tear release thread 24 is preferably applied to the continuous web 33 while performing a continuous transfer motion. In this case, the tear release thread 24, which is also supplied continuously, is arranged on the surface of the web 33, with the tear release thread 24 being guided to achieve a more or less serpentine or wavy form (FIG. 2). The The resulting thread sections 31, 32 extend in the longitudinal direction of the web and are different in length. Due to the side flaps 20, 21 located side by side, the thread section 32 towards the end wall 18 is longer than the thread section 31 in the region of the side wall 16.

  The operation of applying the tear release thread 24 to the continuous web 33 includes features related to the method and equipment. The tear release thread 24 is transferred to the surface of the web 33 by a guide member, in this case a rotating guide roller 35. The rotating roller is fitted on the mount. The tear release thread 24 is supplied so that a sufficient amount of the thread section is in contact with the circumferential surface of the guide roller 35. The guide roller is a web 33 that is continuously moved by a gear mechanism that is specially controlled so that the tear-release thread 24 is applied to the web 33 following the trajectory shown in FIG. 2, FIG. 12 or similar. Is moved across.

  The device for applying the tear release thread 24 to the web 33 is advantageously a component of the packaging machine (see FIG. 3). The subassembly is shown as Detail IV. Accordingly, the web 33 drawn from the reel 38 is supplied to the thread unit 39. This is illustrated in FIG. 4 by way of example.

  The tear release thread 24 is pulled out from the thread reel 40. The tear release thread 24 is advantageously provided with an adhesive on one side thereof, ie the side facing the web 33. The thread reel 40 is rotationally driven. To be precise, in this example, it is rotationally driven at a constant transfer speed for pulling out the tear release thread 24. This tear release thread is guided over a plurality of compensation rollers 41. These compensating rollers can be moved relative to each other to reduce the amount of movement of the tear release thread 24 while the packaging machine starts or stops, i.e., in a different working situation than the standard working process. Generate motion to compensate.

  The actual thread subassembly includes two gear units 42, 43. The gear unit 42 functions to compensate for the transfer speed of the tear release thread 24 based on the relative movement between the web 33 and the tear release thread 24. The gear unit 43 provides a controlled transverse movement of the guide roller 35 for the transfer member or tear release thread 24.

  Although at a constant withdrawal speed of the tear release thread 24 in the area of the thread reel 40, the gear unit 42 must increase the tear release thread 24 transport speed while forming the thread sections 26,27. In the region of the thread sections 31, 32, the transfer speed of the tear release thread 24 necessarily corresponds to the transfer speed of the web 33.

  The gear unit 42 alternately forms the supply length of the thread. That is, the increased transfer rate is reduced and a smaller transfer rate is formed again. This supply of sled includes a loop of sled as a result of turning about the movable dancer roller 44. The dancer roller 44 is fitted to the receiving body 45, that is, the slot guide body 46 in a displaceable manner. Two separate fixed turning rollers 47, 48 for the tear release thread are fitted to the receptacle. Although the dancer roller 44 is offset with respect to the turning rollers 47 and 48, the dancer roller 44 is mounted at the center between the turning rollers 47, so that the distance from the turning rollers 47 and 48 increases when the dancer roller 44 is displaced. Or decrease.

  The dancer roller 44 is controlled in exact correspondence with the movement sequence of the web 33 and the tear release sled 24. For this purpose, the dancer roller 44 is assigned a servo motor 49 as a drive member. This motor is connected to a dancer roller via a gear mechanism, specifically a crank mechanism 50. FIG. 9 shows a side portion of the receiving body 45 including the crank mechanism 50 in a direction away from FIG. 4, and the connecting rod 51 is connected to the dancer roller 44. The servo motor 49 acts on the crank 52.

  The gear unit 43 performs the movement of the guide roller 35 exactly, ie in terms of the required movement of the guide roller 35 across the web 33 on the one hand. In view of the accurate angular position of the guide roller 35 so as to be aligned with the angular position of the tear release thread 24 relative to the web 33, the double control is performed.

  The guide roller 35 is fitted to a carrier movable in the transverse direction, that is, a guide carriage 53 for moving in the transverse direction. This guide carriage can move on the transverse guide 54. The drive is performed via a tie rod 55 that is driven by a servomotor or controlled by a cam via a support roller.

  The guide roller 35 is fixed to the guide carriage 53 via a mounting member 56, that is, it is mounted to the mounting member 56 via a mount 57 capable of a fork-like pivot. The mount 57 can rotate or pivot with the guide roller 35 about one axis, ie, perpendicular to the axis of the guide roller 35. Therefore, the guide roller 35 can occupy different angular positions. A rotating gear mechanism including a connecting rod 58 connected to the rotating arm 60 of the mount 57 via a joint 59 is present directly below the mounting member 56. In this case as well, the control of the connecting rod 58 is not shown, but it is the same as the control of the tie rod 55 in which the guide roller 35 is always directed in the direction in which the tear releasing thread 24 is supplied. FIG. 6 shows the position of the guide roller 35 during the formation of sled sections 26, 27 facing in an oblique direction.

  Since the guide roller 35 has a special design, it has a dual function, ie, on the one hand, the guide function of the tear release thread 24 and, on the other hand, the function of pressing the release thread against the surface of the web 33. It can be carried out. This is because the guide roller 35 is lifted laterally so that it does not function in the region where the tear release thread 24 is in contact with the web 33. For this purpose, the guide roller 35 includes three separate rollers 61, 62, 63 (see FIG. 8). The individual roller 62 in the middle accommodates the tear release thread 24 on its peripheral surface, and the individual rollers 61, 63 in the transverse direction serve as flanged wheels. The individual rollers 61, 62, 63 can be rotated independently of each other, and are fixed to the fixed mounting spindle 64 by a rotating contact bearing. The mounting spindle 64 includes an offset section in a manner similar to a crankshaft. The individual rollers 61, 62, and 63 are provided such that the middle individual roller 62 rotates around one imaginary axis, while the individual rollers 61 and 63 in the lateral direction rotate in an offset manner. Therefore, in the region where the tear release thread 24 is transferred to the web 33, the individual rollers 61, 62, 63 always have three circumferential surfaces that coincide with each other (see FIG. 8).

  In order for the tear-release thread 24 to achieve a sufficient packaging area around the guide roller 35, the support roller 36 (FIGS. 4, 10) is fitted directly under the guide roller, i.e. directly under the mounting member 56, The tear release thread 24 is slightly turned to guide it relative to the guide roller 35.

  The transfer speed of the tear release thread 24 in the transfer area to the web 33 is achieved by the transfer speed of the web 33. The transfer speed of the web 33 pulls the tear release thread 24 along with the web 33 as a result of bonding. Transfer of the tear release thread 24 to the web 33 occurs in the area of the turning roller 65 of the web 33. The guide roller 35 is in pressure contact with the turning roller 65. The turning roller 65 is mounted in an elastic manner, that is, on a rotating arm 66 biased in the direction of the guide roller 35 by a compression spring 67.

  FIG. 10 shows one alternative of the thread unit 39 of FIG. Here, the gear unit 43 corresponds to the specific example of FIG. One deformation is applied in the region of the gear unit 42. The dancer roller 44 with servo drive is replaced by a single compensating member that rotates exclusively. This rotation compensation disk 37, which brings the tear release thread 24 into contact with the circumferential surface, generates a length compensation corresponding to the different transport speeds of the tear release thread 24 during each rotation as a result of its eccentric structure.

  In the present example, the packaging machine and its subassemblies are set up to perform a double web operation. The (double-width) web 33 includes two blank webs. Therefore, the thread unit 39 is set for the work of fitting the two tear release threads 24 at the same time. Therefore, two thread reels of the same equipment are provided, i.e., arranged one above the other. The remaining members of the thread unit 39 and / or the gear units 42, 43 are set to handle the two tear open threads 24 either appropriately sized or supplied in a double arrangement. . In particular, the two guide rollers 35 are provided to be biased and / or adjusted simultaneously by common members.

  The cigarette multipack in FIG. 11 is manufactured in a manner similar to the hinged box 10 as far as the outer packaging material is concerned. The blank 12 (FIG. 12) is designed so that the slanted thread sections 26, 27 have a relatively large length relative to the thread sections 31, 32. Otherwise, the outer packaging has a corresponding design.

  It is also possible to produce a tear release thread 24, or tear release strip, in sections and feed it to individual blanks 12 or webs 33 made of film or the like (FIGS. 13-17). In this case, the completed tear release threads 24 are individually manufactured and placed on the surface of the web 33. In the exemplary embodiment of FIG. 13, the individual tear release threads 24 have the same structure as the exemplary embodiment of FIGS. However, the tear release thread includes a portion of the thread section 32 that extends toward the grip tab 25. Since the other end of the thread section 32 is spaced from the grip tab 25 of the adjacent blank 12, the tear release thread 24 is fitted to the surface of the blank 12 in an offset manner as a whole.

  The current shape of the tear release thread 24 is manufactured in a finished form, but other forms are also possible, especially without the curved portion 30, i.e. with a zigzag form, or with a deformed corner.

  The thread unit 39 for manufacturing and fitting the tear release thread 24 in FIG. 13 separates (at least) one cutting cutter, i.e. the tear release thread 24 with contours, from the lead ends of the material webs or thread webs 71, 72. It operates with the thread cutters 69 and 70 for the purpose. The thread cutters 69 and 70 correspond in shape to the shape of the tear release thread 24 to be separated. In other words, in this case, it is almost V-shaped or meandering.

  The thread webs 71 and 72 are supplied to a cutting block 73 of the thread unit 39 that traverses the web 33. The thread cutters 69 and 70 can be raised and lowered within the cutting block 73 (FIG. 16). The lead end portions of the thread webs 71 and 72 are supported in a standby state as projecting portions corresponding to the width of the tear release thread 24 to be separated in the cutting block 73. The thread webs 71 and 72 run between the slot-shaped guide body 74 and / or the upper and lower guide rollers 75 and 76 in the cutting block 73. To perform the cutting, the thread cutters 69, 70 are moved upward from the starting position at the bottom (see FIG. 17). A fixed alignment cutter 77 having the same shape as the thread cutters 69 and 70 is formed above the thread webs 71 and 72. When cutting is performed as a result of the relative movement, the tear release thread 24 is cut off as the lead end of the thread webs 71, 72.

  Since the thread cutters 69 and 70 continue to move (upward), the separated tear release thread 24 is directly supplied to the surface of the web 33, the tear release thread 24 is disposed on the lower surface of the web 33, and the web 33 (See FIG. 16). For this purpose, the thread cutters 69, 70 are designed as carriers or bars 85 (with shaped contours), which go up and down in an upstanding recess 78 of a cutting block 73 with a similar contour. be able to. In order to hold the tear release thread 24, the bar 85 is provided with a suction hole 79 on the upper side adjacent to the thread cutters 69, 70. The suction hole 79 is connected to a negative pressure source at least during the transfer phase of the tear release thread 24.

  The web 33 is transported through the cutting block 73 in the (upper) guide slot 80. On the opposite side of the cutting cutters 69, 70, when the tear release thread 24 is crimped, one (elastic) pressure member 81 is formed in the cutting block 73 as a contact member. The pressure member 81 can be heated in turn so that the tear release thread 24 is attached by a seal.

  Also in this exemplary embodiment, the web 33 is transferred continuously. However, in the area of the thread unit 39 and / or the cutting block 73, the web section 82 is controlled so that a temporary resting state occurs, i.e. a resting state in which the tear-release thread 24 is fitted. (FIG. 14). For this purpose, the web 33 is guided through two pivoting compensation pendulum structures 83, 84 that can swing back and forth in synchrony. This already known mechanism provides a temporary stationary state of the web section 82, despite the continued continuous drive operation.

  Bars 85 having a profile as a carrier for the thread cutters 69, 70 are fitted with their (horizontal) mounting arms 86 at their ends. The mounting arm 86 is mounted on the machine frame and can be moved up and down in the slot 87 to enable the tearing strip 24 to be cut and fed to the web 33.

  The apparatus shown in FIGS. 14 to 17 sets two web operations in the same manner. Accordingly, the two thread webs 71 and 72 are supplied to the cutting block 73 which is correspondingly designed in a manner that, to be precise, the two are arranged vertically. The upper thread web 71 is guided directly to the cutting block 73, while the lower thread web 72 initially travels directly under the cutting block 73 but is incidentally directed upward via the turning roller 88, It is then returned to the horizontal plane. Since the web 33 has a double width, as a result, the two blanks 12 are arranged back and forth in the transverse direction.

The perspective view of a cigarette pack provided with a pack, ie, an outer packaging material. Section of the web with tear release threads applied to produce a blank as outer packaging.

1 shows a packaging machine for attaching an outer wrapping material to a device or cigarette pack. Fig. 4 shows details of the packaging machine of Fig. 3, i.e. a subassembly for applying a tear-release thread to a (film) web. FIG. 5 shows a view in the form of a detail of the subassembly of FIG. 4 along the VI-VI section. FIG. 5 shows a view in the form of a detail of the subassembly of FIG. 4 along the V-V section. This time, another view of the subassembly of FIG. 4 as seen from the direction of arrow VII is shown. 8 shows an enlarged detail of region VIII in FIG. This time, a side view of another detail seen from the direction of the arrow IX in FIG. 7 is shown. FIG. 5 is a schematic view similar to FIG. 4 of an alternative structure of a subassembly. Another specific example of a pack provided with an outer packaging material, that is, a perspective view of a multipack of cigarettes. 12 shows a blank for the outer packaging material of the pack of FIG. Fig. 4 shows a section of a (film) web with pre-assembled tear release threads or strips applied in the section. Figure 14 shows a side view of a sub-region of the device for producing and applying the tear release thread of Figure 13; It is a figure which shows the detail of the apparatus of FIG. 14, Comprising: It is a horizontal cross section corresponding to the XV-XV cross section of FIG. 17, ie, a top view. FIG. 15 is a detail of the device of FIG. 14 with different member positions in a vertical section corresponding to the XVI-XVI section of FIG. The figure of the same meaning as FIG. (Reference code list) 10 ... pack, 11 ... multipack, 12 ... blank, 13 ... blank, 14 ... front wall, 15 ... rear wall, 16 ... side wall, 17 ... side wall, 18 ... end wall , 19 ... bottom wall, 20 ... outer side flap, 21 ... inner side flap, 22 ... end flap, 23 ... end flap, 24 ... tear release thread, 25 ... grip tab, 26 ... thread section, 27 ... Thread section, 28 ... Pack corner, 29 ... Pack corner, 30 ... Curved portion, 31 ... Thread section, 32 ... Thread section, 33 ... Continuous web, 34 ... Blank subassembly, 35 ... Guide roller, 36 ... Support roller, 37 ... Rotation compensation disk, 38 ... Reel, 39 ... Thread unit, 40 ... Thread reel, 41 ... Compensation roller, 42 ... Gear unit, 43 ... Gear unit, 44 ... Dancer roller, 45 ... Reception Rod, 46 ... Slot guide, 47 ... Turning roller, 48 ... Turning roller, 49 ... Servo motor, 50 ... Crank mechanism, 51 ... Connecting rod, 52 ... Crank, 53 ... Guide carriage, 54 ... Transverse guide, 55 ... Tie rod, 56 ... Mounting member, 57 ... Mount, 58 ... Connecting rod, 59 ... Joint, 60 ... Rotating arm, 61 ... Roller, 62 ... Roller, 63 ... Roller, 64 ... Mounting spindle, 65 ... Turning roller, 66 ... Rotating arm, 67 ... Compression spring, 68 ... Cutting part, 69 ... Thread cutter, 70 ... Thread cutter, 71 ... Thread web, 72 ... Thread web, 73 ... Cutting block, 74 ... Slot-shaped guide, 75 ... Guide roller, 76 ... Guide roller, 77 ... Aligning cutter, 78 ... Recess, 79 ... Suction bore, 80 ... Guide slot, 81 ... Pressure member, 82 ... Web section, 83 Compensating pendulum structure, 84 ... compensating pendulum structure, 85 ... Bar, 86 ... mounting arm, 87 ... slot, 88 ... guide roller,

Claims (2)

Cigarette pack in the form of a hinged lid pack or bundle pack, which is a tearable film outer wrapping material, and a tear-release thread ( 24 ) attached to the outer wrapping material and extending around its entire circumference The tear-release thread comprises a grip tab (25) at one end thereof, is characterized by the following (a) to (g), and is operated by operating the tear-release thread ( 24 ). Cigarette pack that can divide the packaging material into two separate parts.
(A) In the region of the front wall (14) on the large surface of the cigarette pack and the region of the rear wall (15) corresponding to the front wall, the tear-release thread ( 24 ) is threaded (26,27 The section (26, 27) extends from one bottom pack corner (28) to a diagonally opposite end pack corner (29).
(B) In the area of the front wall (14) and the rear wall (15), the thread sections (26, 27) are straight, approximately diagonally extending thread areas, bottom pack corners, diagonally A curved thread region (30) formed in the region of the opposite end pack corner (29) and adjacent to the straight thread region.
(C) The curved portion (30) transitions to the transverse thread section (31) in the region of the side wall (16) and also faces the side wall (17) facing the side wall (16). ) Transition to the transverse thread section (32).
(D) The transverse thread sections (31, 32) in the region of the side walls ( 16, 17 ) are arranged at a small distance from the end wall (18) and the bottom wall (19).
(E) One side wall (17) of the outer wrapping includes two side flaps (20, 21) partially overlapping, and a transverse thread section (32) adjacent to the end wall (18). ) Is arranged in the region of the two side flaps (20, 21) overlapping and adjacent to the end wall (18).
(F) The segments of the transverse thread section (32) of the tear release thread (24) overlap each other in the region of the side flaps (20, 21).
(G) The segment of the thread section (32) arranged in the area of the outer side flap (20) extends into the area of the grip tab ( 25 ) arranged in the outer side flap (20). A method for producing a blank (12, 13) from a film, paper, or other tearable packaging material to form an outer packaging material of a rectangular parallelepiped cigarette pack, comprising the following (a) to (e ) And comprising a tear release thread that fits over the surface of the outer packaging.
(A) The blanks (12, 13) are continuously cut from the continuous web (33) of packaging material.
(B) During transfer of the material web (33), a continuous tear release thread (24) is applied to the material web (33) and connected to the material web (33).
(C) To form a diagonally extending thread section (26, 27), the tear release thread (24) is guided across the direction of transport of the material web (33) and the tear release thread (24 ) Is applied in a part of the material web (33) so as to be directed in an oblique direction with respect to the material web transfer direction.
(D) The transverse cut for cutting the blank (12) from the material web traverses the region of the thread section (32) extending in the transport direction of the material web (33).
(E) The tear release thread (24) is guided so that a substantially serpentine form is created when it is applied to the material web (33), the edge thread section (31, 32) Diagonally extending thread section (26,27) and curved section (30) as a transition zone between thread section (31,32) and thread section (26,27) extending in the material web transfer direction To do.

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