Device for rotating or rolling a smokable rod product

Abstract

Device (1) for rotating or rolling a smokable bar product, comprising a lower part (2) and an upper part (3) and several rotatably mounted rollers (7), wherein a first group (5) of the rollers (7) is arranged in the upper part (3) and a second group (6) of the rollers (7) is arranged in the lower part (2), wherein the first ends and / or second ends of several rollers (7) of the first group (5) are arranged adjacent to each other and the first ends and / or second ends of several rollers (7) of the second group (6) are arranged adjacent to each other, wherein the rollers (7) are arranged and / or designed such that they collectively form a longitudinally tapered roller body (9) which encloses a longitudinally tapered free space (10), wherein at least one rolling element (11) is arranged in the free space (10) which is adjacent to the first ends and / or the second ends of the rollers (7),and wherein, by a rotation of the rollers (7) in the free space (10), the smoke material present can be rolled into a covering material, so that a conically shaped smokable rod product can be produced.

Description

The invention relates to devices for twisting or rolling smokable stick products, in particular cigarettes, hand-rolled cigarettes or similar smoking products enclosed in a wrapping material. To manufacture such stick products, it is known to place a filling of a smoking product, in particular tobacco or tobacco-containing or tobacco-free smoking material, into a paper or other wrapping material and to form it into a substantially elongated body. The filling should be distributed as evenly as possible and introduced into the wrapping material with a desired density to obtain a dimensionally stable and usable product. The production of such products generally requires the controlled guidance, compaction, and shaping of the smoking material during the rolling process. The uniformity of the cross-section, the position of the coating material relative to the filling, and the reproducible shaping of the final product are particularly important. Depending on the desired product shape, a geometry deviating from a cylindrical profile may also be significant. Furthermore, devices for rolling smokable rod products generally require that the rolling process be carried out with minimal manual effort and with repeatable product quality. In particular, a device should be provided that enables controlled shaping of the product to be rolled and is easy to handle. EP 0 765 610 A1 describes a device for rolling a cigarette, in which two rollers and a band-shaped element work together to transform a smoking product into a conical shape. The shape of the product is essentially influenced by the geometry of the band-shaped element. US Patent 3,911,933 A discloses a manual cigarette rolling machine with two rollers and an endless belt. The smoking material is taken up in an area formed by the belt and rolled into a smokable stick product by actuating the device. WO 2019 / 095040 A1 discloses a foldable rolling device comprising a base, a lid, and a flexible rolling band that forms a roll bag when the device is closed. The product to be rolled is shaped by means of the rolling band. WO 2021 / 246863 A1 discloses a rolling device with a receiving area and a guided rod, wherein a rolling blade is moved relative to the rod to form a smokable product. CN 212574121 U discloses a device for the manufacture of conical cigarettes with a forming device and a movable cover by means of which a conical smoking product can be formed. US 11,547,141 B2 describes a method for making conical cigars or cigarettes by hand. Against this background, there remains a need for a device for rotating or rolling a smokable rod product that is structurally simple and enables reliable and reproducible shaping of the product to be rolled. The object of the present invention is to provide a device for turning or rolling a smokable rod product, with which a reproducible and defined shaping, in particular of a rod product tapering in its longitudinal extension, is made possible. The problem is solved by the features of claim 1. Preferred embodiments are described in the dependent claims. The object of the invention is achieved by providing a device for rotating or rolling a smokable stick product, comprising a lower part, an upper part, and several rotatably mounted rollers. For the purposes of the invention, a smokable stick product is understood to be an elongated smoking product encased in a wrapping material, in particular a cigarette, a joint, a cigar, a cigarillo, or any other smokable, elongated product. The smokable stick product may comprise tobacco-containing and / or tobacco-free smoking material. For the purposes of the invention, rollers are understood to be rotatably mounted, elongated rolling elements that at least partially define the free space and, through their rotational movement, act upon and are in effective contact with the smoking material and / or the wrapping material. For the purposes of this invention, the terms "lower part" and "upper part" are used for simplified description purposes only and are not to be understood restrictively. These terms generally refer to two housing parts of the device that are movable relative to each other and can be brought together to form the roller body and the clearance space. The lower part and the upper part can therefore also be designed as a first and second housing part and can be arranged in any spatial orientation relative to each other. In particular, the designation is not to be understood as meaning that one of the housing parts must necessarily be arranged below or above the other. Rather, the decisive factor is the functional interaction of the housing parts for receiving and arranging the rollers and for forming the clearance space. The rollers are divided into two groups, with a first group located in the upper section and a second group in the lower section. The first and / or second ends of several rollers within each group are arranged adjacent to one another or may have an equally sized gap filled with a solid material to prevent the smoke material from escaping. This allows the rollers as a whole to form a shell structure surrounding the open space. The rollers are arranged and / or designed such that they collectively form a roller body that tapers longitudinally. The roller body is understood to be the shell structure formed by all the rollers, which surrounds the open space, at least partially. The roller body thus defines the outer boundary of the open space, at least in some areas. The open space enclosed by the rollers also tapers longitudinally.In the context of the invention, a roller body or clearance that tapers longitudinally means that the cross-section changes along its longitudinal extent, in particular decreases, such that one axial end section has a larger cross-section than another axial end section opposite it. In other words, the clear width of the clearance or the outer dimension of the roller body decreases in the axial direction towards one end. The recess is designed to accommodate and shape a conically shaped, smokeable rod product. The longitudinally tapered design of the roller body and the recess allows the smoke material within the recess to be formed into a conical shape during rolling. The recess serves to hold both the smoke material and the wrapping material during the rolling process. At least one rolling element is arranged in the free space, adjacent to the first ends and / or the second ends of the rollers. The rolling element interacts with the rollers in such a way that the wrapping material can be gripped and guided by the rolling element as the smokeable rod product rotates or rolls. This allows the wrapping material to be applied to and guided around the smoke material present in the free space in a defined manner. The rolling element thus supports, in particular, the controlled engagement and guidance of the wrapping material in an axial end region of the free space. This promotes the wrapping material fitting closely to the smoke material, resulting in a compact shape for the smokeable rod product being produced. The rolling element therefore acts not merely as an additional forming element, but as a functional guiding element for the wrapping material within the free space.By arranging the rolling element adjacent to the ends of the rollers, the coating material can be specifically influenced in an area that is crucial for the start or progress of the rolling process. The rollers are rotatably mounted, allowing smoke material in the free space to be rolled into a wrapping material by their rotation. The wrapping material can be, in particular, a sheet, a blank, or a web-like material intended for encasing the smoke material. The rotation of the rollers moves the smoke material in the free space relative to the wrapping material, while the wrapping material is guided by the at least one roller body. This allows the smoke material to be rolled into the wrapping material within the longitudinally tapered free space and formed into a conically shaped, smokable rod product.The smoke material can initially be placed in the open space as a localized pile. The rotating rollers then distribute the smoke material along the length of the open space and spread it circumferentially, resulting in a more even distribution before the actual rolling process. Essentially, the smoke material can be positioned freely within the open space, as the rotating rollers ensure its uniform distribution. The division of the rollers into upper and lower sections allows the free space to be at least partially accessible when the device is open, and when the upper section is closed relative to the lower section, the roller bodies are available for shaping the rod product. This can facilitate filling the free space with smoke material and introducing the coating material. Compared to known devices where the smoking material is primarily rolled using a belt, a flexible web, or only a few forming elements, the creation of the free space by several interacting rollers enables a more precisely defined mechanical shape of the rod product. This particularly facilitates the production of a conically shaped rod product with reproducible geometry. Furthermore, the multi-roller arrangement enclosing the free space ensures more uniform guidance of the smoking material. Depending on the specific geometric design of the device, especially the axial extent of the free space, smoking rod products of varying lengths can be rolled, making the device suitable for producing shorter or longer rod products depending on its configuration. In one embodiment, the lower and upper parts together form a housing for the device. This housing encloses the rollers and the free space, ensuring that the mechanical arrangement of the rollers remains stable and that the wrapping material can be guided in a controlled manner during the rolling process. In one embodiment, the first ends of the rollers of the first group and the first ends of the rollers of the second group are arranged in an axial view on circular segments that form a first circle when the upper and lower parts are joined. Furthermore, the second ends of the rollers of the first group and the second ends of the rollers of the second group are arranged in an axial view on circular segments that form a second circle when the upper and lower parts are joined. An arrangement on circular segments is understood to mean that the ends of the rollers arranged in the upper part lie in an axial view on a first segment of an imaginary circle, while the ends of the rollers arranged in the lower part lie in an axial view on a further segment of the same imaginary circle.The circular segments thus complete a full circle when the upper and lower parts are joined. In other words, when the device is open, each of the two housing parts contains only a portion of the circular end arrangement, while the complete circular circumferential arrangement of the roller ends only emerges when the device is closed. This applies accordingly to both the first and second ends of the rollers. An axial view of the first ends of the rollers thus reveals a first circle, and an axial view of the second ends reveals a second circle. The two circles can have different diameters, particularly if the roller body and the enclosed space taper along their length.This circular segment arrangement of the roller ends ensures that the rollers are positioned relative to each other in a defined circumferential geometry at both axial end regions. This supports the formation of a circumferentially closed, or at least largely closed, roller body and thus a geometrically defined limitation of the free space. At the same time, the division of the circular end arrangement into circular segments allows for a structurally simple distribution of the rollers between the upper and lower parts without compromising the circular geometry in the closed state. In one embodiment, the rollers are conically shaped along their longitudinal extent, causing the roller body to taper axially in the clearance space. This facilitates precise shaping of the smoke material arranged in the clearance space, as the longitudinally tapered profile of the roller body correspondingly restricts the clearance at the axial ends. The conical design of the rollers ensures that the coating material is guided evenly during the rolling process and that the resulting bar product has a compact, conical geometry. The angle of the roller's cone can vary, allowing for the production of bar products with different tapering angles.Furthermore, the conical design of the rollers contributes to ensuring that the rotation of the rollers allows for a uniform compaction of the smoking material along the longitudinal axis of the free space, thereby guaranteeing a reproducible shape of the smokable rod product. In a further embodiment, straight rollers can be used instead of conical ones. Even with straight rollers, their arrangement in the upper and lower sections allows them to form a single roller body that encloses a longitudinally tapered cavity. In this way, a conically shaped, smokeable rod product can also be manufactured. The use of straight rollers offers the advantage that standard rollers without individual taper can be used, while the desired conical shape of the cavity is achieved through the arrangement of the rollers relative to each other. If gaps exist between the rollers, these can be at least partially closed with elements to prevent the smoke material from being ejected or seeping through during rolling. The device can be made from various materials, depending on the desired mechanical properties, the manufacturing method, and the application. In one embodiment, the device components, particularly the lower part, the upper part, and the rollers, can be made of plastic, for example, by injection molding. Plastic enables the cost-effective production of complex geometries, reduces the device's weight, and can minimize wear at the contact points of the smoke material. In another embodiment, individual components, especially load-bearing elements such as axles, gears, or bearing housings, can be made of metal to ensure high strength, rigidity, and durability.Furthermore, a combination of plastic and metal components is possible, allowing the advantages of both material groups to be utilized, such as economical manufacturing of the housings using injection molding while simultaneously using metallic roller axles or drive components for increased service life and precision. In one embodiment, the rollers are provided with a profiled surface. The profiling can take the form of longitudinal grooves, slots, or raised areas running along the conical surface of the rollers. The profiled surface guides the coating material during the rolling process and stabilizes it in position. This facilitates the insertion of the coating material into the cavity and contributes to a uniform and compact formation of the conically shaped bar product. Furthermore, the profiling of the rollers can advantageously influence the friction between the rollers and the coating material, thereby enabling controlled insertion of the coating material and preventing twisting of the smoke material. In one embodiment, the rollers have at least a partially smooth surface. In one embodiment, the device is configured with at least three rollers. Depending on the specific configuration, eight, ten, or even more rollers can be used, allowing for a more uniform limitation of the free space around its circumference. This contributes to a reproducible and stable shape of the smokable rod product. In another embodiment, the rollers can be arranged such that three are located in the lower section and two in the upper section. This results in a structurally simple distribution of the rollers between the two housing parts and enables precise guidance of the coating material within the free space. In one embodiment, the at least one rolling element has a conically shaped outer surface along its longitudinal extent. The rolling element can be tubular or sleeve-shaped and is rotatably mounted so that it can rotate synchronously with the rollers or independently. Due to its conical outer surface, the rolling element grips and guides the wrapping material during its insertion into the free space and lays it evenly over the smoke material, thereby promoting a compact and uniformly shaped conical geometry of the rod product. In another embodiment, the at least one rolling element is tubular or sleeve-shaped and is penetrated by a rod extending into the free space. A tamping element is formed at the free end of the rod, while the end opposite the tamping element projects from the lower part and is movably mounted axially along the longitudinal axis of the free space.The rolling element can be coupled to the rollers or a drive mechanism, allowing it to rotate synchronously or independently of the rollers. This arrangement enables the coating material to be precisely gripped, guided, and drawn into the free space, thus promoting the compact and uniform formation of the conically shaped, smokable rod product. It can be advantageous if a rolling element is attached to the plugging element at one end, for example, by the plugging element engaging with a hollow rolling element. This also allows several rolling elements to be arranged one behind the other over the rod and / or the plugging element in the free space. In one embodiment, gears are arranged at the ends of the rollers, positioned around a central gear. Each roller gear engages with the central gear, thus transmitting its rotational movement to the rollers. The direction of rotation of the roller gears is fixed such that adjacent rollers rotate in opposite directions, ensuring that the smoke material and the wrapping material are guided and held evenly within the free space. Furthermore, the circumferential arrangement of the gears around the central gear achieves a compact, spatially defined integration of the drive components, guaranteeing precise synchronization of the roller movements. In one embodiment, the gears are either mounted on the free ends of the rollers or permanently connected to them. With mounted gears, these are slid onto the roller shaft and held in place by a fit, toothing, or other mechanical connection so that they rotate with the roller. With integral manufacturing, the gears are manufactured as a single unit with the rollers, so that the roller and gear form a single component and power transmission occurs directly without an additional connection. A technical advantage of this embodiment is that the choice between mounted or integral gear designs allows for both simple assembly and maintenance, as well as a particularly robust and wear-resistant power transmission to the rollers. In one embodiment, a drive element is arranged on the central gear, or the central gear can be connected to a drive element. The drive element can be an electric motor, a mechanical torque transmission device, or a torque-transmitting shaft or pin that engages with the central gear. This connection reliably transmits the rotary motion to the central gear, ensuring that the gears of the rollers are driven synchronously and the rollers rotate uniformly. This allows the smoke material, along with the wrapping material, to be moved in a controlled manner within the free space. In one embodiment, the drive mechanism is designed as an electric motor, for example, a DC motor, AC motor, or brushless electric motor. The electric drive mechanism can be part of the device or reversibly connected to it, for example, via a coupling, plug connection, or positive-locking fitting. This arrangement transmits the rotary motion directly or via the central gear to the gears of the rollers, ensuring synchronous and uniform rotation of the rollers. This allows the smoke material, along with the coating material, to be guided in a controlled manner within the free space and processed into a conically shaped rod product. In one embodiment, the drive mechanism is designed as a lever, serving as a mechanical torque transmission device. The lever is either directly connected to the central gear or integrally manufactured with it. The lever can be connected to a knob via a torque-transmitting linkage, so that manually turning the knob drives the central gear. This allows the gears of the rollers to rotate synchronously, enabling the rollers to guide the smoke material, along with the wrapping material, in a controlled manner within the free space and produce a conically shaped rod product. In one embodiment, at least one rolling element is arranged in the free space near the second ends of the rollers of the second group located in the lower part. The rolling element is rotatably mounted, for example, on an axle or hub that is guided in corresponding bearing receptacles in the lower part, thus ensuring rotation-free, stable guidance. This rotatable mounting allows the rolling element to grip the wrapping material as it is inserted into the free space and guide it over the smoke material. The position of the rolling element in the immediate vicinity of the second ends of the rollers ensures that the wrapping material is gripped in a controlled manner as it enters the free space, thereby promoting a uniform and compact shape of the conically shaped rod product. In one embodiment, at least one rolling element is connected to the drive element in a torque-transmitting manner. The rolling element can be directly connected to the drive element via a shaft, hub, or coupling, so that the torque is transmitted from the drive element to the rolling element. Alternatively, the rolling element can be coupled to the central gear via a toothed connection or other positive-locking connection, so that the rotary motion of the central gear is transmitted to the rolling element. This arrangement ensures that the rolling element rotates synchronously or in coordination with the rollers and that the coating material is reliably guided and moved in a controlled manner over the smoke material in the free space during the rolling process, thereby achieving a compact and reproducible conical shape of the bar product.In a further embodiment, at least one rolling element is not connected to the drive element or the central gear in a torque-transmitting manner, but is freely mounted or inserted in the free space. The rolling element can then rotate passively as a result of the movement of the rollers and the casing material. In this embodiment as well, the rolling element interacts with the rollers in such a way that the smoke material arranged in the free space is guided and stabilized in its position, thus enabling the formation of the smokeable rod product. In one embodiment, at least one rolling element is tubular or sleeve-shaped and is penetrated by a rod extending into the free space. A packing element is formed at the free end of the rod, serving to compress and compact the smoke material in the free space along its longitudinal axis. The end of the rod opposite the packing element projects from the lower part and is axially movably mounted along the longitudinal axis of the free space, so that the packing element can uniformly collect the smoke material upon entering the free space and compact it in the direction of the free space. A knob, lever, or similar actuating element can be attached to the end projecting from the lower part, allowing the axial movement of the packing element to be controlled manually or mechanically.This arrangement supports a compact and uniformly shaped conical structure of the smokable stick product. In one embodiment, a further rolling element is arranged axially spaced from the first rolling element in the free space, near the first ends of the rollers of the second group located in the lower part. The rolling element is rotatably mounted, for example, on an axle or hub guided in corresponding bearing receptacles in the lower part. This arrangement allows the further rolling element to stabilize and guide the smoke material and the coating material in a separate axial section of the free space. The rotatable mounting, while not strictly necessary, enables uniform rotation, thereby ensuring controlled material feeding and promoting the formation of a compact and uniformly shaped conical structure in the rod product. In one embodiment, the upper part is articulated to the lower part and pivotable relative to it, for example, by connecting the upper part to the lower part via one or more articulated joints. An articulated joint can be realized, in particular, via a flexible connecting element or a hinge located between the upper and lower parts. This articulated joint allows the upper part to be moved to open the device, thus providing access to the free space, for example, for introducing smoke material and wrapping material or for maintenance and cleaning work. When the upper and lower parts are joined, the pivoting action creates a stable, positive-locking connection, so that the rollers and the free space are held in a defined position during the rolling process. In one embodiment, the upper and lower parts each include receptacles for the rotatable mounting of the roller ends. These receptacles consist of slots, holes, or recesses dimensioned to accommodate the corresponding shaped elements of the free roller ends. The receptacles can be located within the upper and lower parts, within their components, or within inserts. This means that inserts containing the receptacles can also be provided in the upper and lower parts. Alternatively, the receptacles can be integrated directly into the upper and lower parts. The roller ends can be rotatably mounted in these receptacles, and if necessary, they can be additionally locked or secured to prevent unintentional loosening during operation. In a simple embodiment, the receptacles are round, into which the round roller ends are rotatably held. In one embodiment, the upper part has a slot on its lower edge, running parallel to the longitudinal axis of the free space, which is designed for introducing the wrapping material into the free space. The slot can be dimensioned such that the wrapping material, in its entirety, particularly its width, can be introduced into the free space in a controlled manner without affecting the position of the rollers or rolling elements. This arrangement enables precise insertion of the wrapping material. In a further embodiment, the upper part features a larger slot on the front. This slot has a downward-facing guide through which the wrapping material can be inserted from the front and then bent downwards to emerge. Half the length of the wrapping material can be inserted through the slot to ensure optimal insertion. In one embodiment, the device comprises a lifting device with a lifting element that is movable, at least partially, into and out of the free space. The lifting element engages in the free space, particularly through a gap between the rollers, and can be designed as a pin, plate element, or disc-shaped element. This design allows the lifting element to be selectively inserted under the rolled smoke material and wrapping material lying in the free space, enabling the conically shaped rod product to be lifted and removed from the free space in a controlled manner without impairing the function of the rollers or the rolling body. In one embodiment, the lifting device comprises a lever that is movable relative to the lower part and is connected to the lifting element in a way that transmits movement. The lever can, for example, be located on the outside of the lower part, making it accessible from the outside and enabling easy operation, or it can be activated by a mechanical button to set the lifting mechanism in motion. The mechanical coupling of the lever to the lifting element allows for a defined translation or rotation of the lifting element within the free space. This enables the lifting element to be precisely inserted into and withdrawn from the gap between the rollers, reliably lifting or aligning the conically shaped bar product located in the free space without affecting the position of the rollers, rolling elements, or wrapping material. In one embodiment, the lower part comprises a base body with a bottom, the bottom being reversibly connectable to the base body. The bottom can be attached to the base body by screws, snap-fit, plug-in, or other detachable fasteners, allowing it to be removed or opened as needed. For this purpose, connecting elements are arranged on the bottom and on the housing facing the bottom, and can be engaged by bringing them close together. In one embodiment, the base includes, at least in part, a receiving compartment for collecting smoke material. The smoke material can trickle from the open space through the roller body towards the base. The arrangement of the receiving compartment ensures that excess smoke material is collected, thus facilitating clean operation of the device and enabling targeted refilling of the open space. In one embodiment, the base is designed to tilt for dispensing the smoke material. The smoke material in the receiving compartment is then moved out via a ramp located between the compartment and the outer edge. Adjacent slopes guide the smoke material towards the ramp, while optional walls prevent it from unintentionally falling out of the receiving compartment elsewhere. This design allows for controlled removal of the smoke material without affecting the rollers, the rolling element, or the surrounding material. The invention is explained in more detail below with reference to an embodiment of the invention, which is illustrated in the drawing. Figure 1 shows a perspective top view of an open device, Figure 2 a front view of a device, Figure 3 a perspective top view of a closed device, Figure 4 an exploded view of a device, Figure 5 a perspective top view of an isolated roller body with a central gear and knob, Figure 6A a side view of a roller, Figure 6B a side view of a roller with a recess, Figure 7 a perspective top view of a rolling body with a tamping body, Figures 8A and 8B a side view of an area of ​​the rollers arranged in the lower part with a lifting device and magnification, Figure 8C a perspective top view of a roller with a recess and a lifting device, Figure 9A a perspective top view of a base, Figure 8B a side view of a roller with a recess and a lifting device.Fig. 9B is a perspective top view of a further embodiment of a floor, Fig. 10 is a perspective top view of a device with an electromechanical drive and Fig. 11A , B is a perspective view of a device with a covering material. Fig. 1 shows a perspective top view of a device 1 in the open state, Fig. 2 a front view of a device, Fig. 3 shows a perspective top view of a device in the closed state, Fig. 4 an exploded view and Fig. 5 an isolated roller body with central gear and knob. The device 1 comprises a lower part 2 and an upper part 3, which are connected to each other via one or more joints 4. The lower part 2 and the upper part 3 are pivotable relative to each other and, in the closed state, together form a housing with a cavity in which the functional components of the device 1 are arranged. In the upper part 3, a first group of rollers 5 is arranged, and in the lower part 2, a second group of rollers 6 is arranged. The rollers 7 are each rotatably mounted in receptacles 8, which may be formed as openings in the narrow sides of the lower part 2 and upper part 3, into which the free ends of the rollers 7 are rotatably mounted. The rollers 7 are arranged such that, when the lower part 2 and upper part 3 are joined, they together form a roller body 9, which tapers along its longitudinal extent and encloses an internal cavity 10. At least one rolling element 11 is arranged in this cavity 10. At the ends of the rollers 7 that define the larger diameter of the roller body 9, gears 12 are arranged that are rotationally fixed to the rollers 7 or reversibly connectable to them, in particular via a positive-locking connection. The gears 12 of the rollers 7 of the first group of rollers 5 in the upper part 3 are arranged along a first circular segment, while the gears 12 of the rollers 7 of the second group of rollers 6 in the lower part 2 are arranged along a second circular segment. When the lower part 2 and upper part 3 are joined, the roller ends are brought close together so that the gears 12 are arranged together along a circle. Within this circle, a central gear 13 is arranged, which is in operative engagement with the gears 12 of the rollers 7. The gears 12 of the rollers 7 each engage with the central gear 13 without being in mesh with each other. The central gear 13 is connected to a knob 15 via a drive element 14, in particular a torque-transmitting pin. By turning the knob 15, the central gear 13 is rotated, thereby driving the gears 12 of the rollers 7. Due to the meshing with the central gear 13, adjacent rollers 7 rotate in opposite directions to each other. The rolling element 11 is connected to the central gear 13 in a torque-transmitting manner and is penetrated by a stub body 16 which is arranged on a rod 22. The device 1 further comprises a removable base 17 and a lifting device 18 with a lifting means 19. Additionally, a separate tamper 20 can be incorporated into the device 1 as an aid. Furthermore, a handle 21 can be provided on the upper part 3, by means of which the upper part 3 can be lifted relative to the lower part 2. Figures 6A and 6B each show a side view of a roller 7. The roller 7 is designed as an elongated body and tapers along its length. At a first end, the roller 7 has a shaped element that can be inserted into a receptacle 8 of the lower part 2 or the upper part 3, thus enabling a rotatable mounting of the roller 7. At the opposite second end, a gear 12 is arranged, which is either positively engaged in a recess of the roller 7 or integrally manufactured with the roller 7. One surface of the roller 7 has a profiled surface in the form of longitudinal grooves. Figure 6B illustrates a design of the roller 7 in contrast to Figure 6A, in which the roller 7 has a recess 29 near one end. Fig. 7 shows a perspective top view of a rolling element 11 with a tamping element 16. The rolling element 11 is conical and sleeve-shaped. A rod 22 extends through the rolling element 11, the first end of which carries the tamping element 16. The opposite end of the rod 22 extends through the central gear 13 and is connected to the drive element 14, in particular via a positive-locking pin. The rod 22 is movably mounted axially along a longitudinal axis of the rolling element 11. Fig. 8A shows a side view of a region of the second group 6 of rollers 7 arranged in the lower part 2, and Fig. 8B shows an enlargement of the region marked with the letter "B". The lifting device 18 with a lifting element 19 is visible. The lifting element 19 is plate-shaped or disc-shaped and projects through a gap between adjacent rollers 7 into the free space 10. In an embodiment according to Fig. 8C, the lifting element 18 is formed by two plate-shaped elements that form a channel for at least one roller 7. For this purpose, the roller 7 can, as illustrated in Fig. 6B, include a recess 29, which is essentially formed by a central roller axis without a profiled surface. The lifting means 19 is connected to a lever of the lifting device 18 in a force- and motion-transmitting manner, so that by a movement of the lever the lifting means 19 can be moved into and out of the free space 10.This allows a shaped bar product, schematically depicted in Fig. 8A, to be moved out of the free space. Fig. 9A shows a perspective top view of a base 17. The base 17 has a receiving compartment 23. A ramp 24 is arranged between the receiving compartment 23 and an outer edge of the base 17. Adjacent to the ramp 24 are inclined surfaces 25, which are designed to guide smoke material located in the receiving compartment 23 towards the ramp 24. The base 17 is designed to tilt, so that the smoke material can be directed out of the receiving compartment 23 via the ramp 24. The base 17 also has positive-locking connecting elements 26 by means of which the base 17 can be detachably connected to the lower part 2. Fig. 9B shows an alternative embodiment of a base 17 in which the base 17 does not include a ramp 24. Smoke material located in the ground can be channeled via the slopes 25 and removed by tilting the ground 17. Fig. 10 shows a perspective top view of a device 1 in which the drive means is designed as an electric motor drive means 27. The electric motor drive means 27 is connected or connectable to the central gear 13 and is configured to drive the central gear 13 so that the gears 12 of the rollers, and thus the rollers themselves, are rotated synchronously. The electric motor drive means 27 can be operated, for example, by a schematically depicted button. Figures 11A and 11B each show a perspective view of a device with a covering material. The covering material 28 can be inserted into the area of ​​the rollers 7 via a slot, for example, formed in the upper part 3, and placed at least partially into the future free space. The slot is arranged such that the covering material 28 can be brought into a defined position relative to the rollers 7. In the embodiment according to Figure 11B, however, the covering material 28 is introduced into the area of ​​the rollers 7 by simply placing it in place. Here, the covering material 28 is manually placed onto the rollers 7 and inserted at least partially into the future free space, so that it is taken into the free space when the lower part 2 and upper part 3 are joined. A preferred method for turning or rolling a smokable rod product using the device 1 described above is explained below. In a first step, the upper part 3 is opened relative to the lower part 2, so that the area formed by the rollers 7 is accessible. Subsequently, a covering material is introduced via the slot of the upper part 3 or directly into the area of ​​the rollers 7 and placed, at least partially, into the future free space 10. In a further step, smoke material is introduced into the area of ​​free space 10, in particular placed on the encasing material. The smoke material can be loose or pre-portioned. Subsequently, the upper part 3 is pivoted relative to the lower part 2, so that the rollers 7 of the first group of rollers 5 and the second group of rollers 6 are brought together and jointly form the roller body 9 with the free space 10 in which the smoke material and the covering material are received. In the next step, the rollers 7 are set in rotation by actuating the drive mechanism 14, in particular by turning the knob 15 or by activating the electric motor drive 27. The rotational movement of the rollers 7 moves the smoke material relative to the wrapping material and rolls it into the wrapping material. The rollers 7, together with the rolling element 11, act in such a way that the smoke material is guided, compacted, and transformed into a defined shape that tapers longitudinally. If necessary, additional axial compression of the smoke material can be carried out by means of the packing body 16 by moving the rod 22 along the longitudinal axis of the free space 10 so that the smoke material is compressed in the axial direction. Once the desired shape and density are achieved, the finished rolled bar product is at least partially lifted out of the free space 10 by opening the upper part 3 or by actuating the lifting device 18. For this purpose, the lifting device 19 is moved into the free space 10 so that the bar product can be lifted and removed. Excess smoke material can enter the receiving compartment 23 of the floor 17 and, if necessary, be removed from the receiving compartment 23 via the ramp 24 by tilting the floor 17. The process can be carried out for bar products of different lengths and conical shapes, depending on the design of the roller body 9 and the clearance 10. Reference symbol list 1 Device 2 Lower part 3 Upper part 4 Joint 5 First group of rollers 6 Second group of rollers 7 Rollers 8 Mounts 9 Roller body 10 Clearance 11 Roller body 12 Gears 13 Central gear 14 Drive means 15 Knob 16 Tamper body 17 Base 18 Lifting device 19 Lifting means 20 Tamper 21 Handle 22 Rod 23 Receptacle 24 Ramp 25 Inclines 26 Positive locking connecting means 27 Electromotive drive means 28 Enclosure material 29 Recess QUOTES INCLUDED IN THE DESCRIPTION This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature EP 0 765 610 A1

[0005] US 3,911,933 A

[0006] WO 2019 / 095040 A1

[0007] WO 2021 / 246863 A1

[0008] CN 212574121 U

[0009] US 11,547,141 B2

[0010]

Claims

Device (1) for rotating or rolling a smokable bar product, comprising a lower part (2) and an upper part (3) and several rotatably mounted rollers (7), wherein a first group (5) of the rollers (7) is arranged in the upper part (3) and a second group (6) of the rollers (7) is arranged in the lower part (2), wherein the first ends and / or second ends of several rollers (7) of the first group (5) are arranged adjacent to each other and the first ends and / or second ends of several rollers (7) of the second group (6) are arranged adjacent to each other, wherein the rollers (7) are arranged and / or designed such that they collectively form a longitudinally tapered roller body (9) which encloses a longitudinally tapered free space (10), wherein at least one rolling element (11) is arranged in the free space (10) which is adjacent to the first ends and / or the second ends of the rollers (7),and wherein, by a rotation of the rollers (7) in the free space (10), the smoke material present can be rolled into a covering material, so that a conically shaped smokable rod product can be produced. Device (1) according to claim 1, characterized in that first ends of the rollers (7) of the first group (5) and first ends of the rollers (7) of the second group (6) are arranged in an axial view on circular segments which form a first circle when the upper part (3) and lower part (2) are brought together, and that second ends of the rollers (7) of the first group (5) and second ends of the rollers (7) of the second group (6) are arranged in an axial view on circular segments which form a second circle when the upper part (3) and lower part (2) are brought together. Device (1) according to one of the preceding claims, characterized in that the rollers (7) are conically shaped over their longitudinal extent. Device (1) according to one of the preceding claims, characterized in that the rollers (7) have a profiled surface. Device (1) according to one of the preceding claims, characterized in that a total of at least three rollers (7) are provided. Device (1) according to one of the preceding claims, characterized in that the at least one rolling body (11) has a conically shaped outer surface along its longitudinal extent. Device (1) according to one of the preceding claims, characterized in that gears (12) are arranged at the second ends of the rollers (7) and that each gear (12) engages in a central gear (13) arranged between the gears (12), so that the gears (12) of the rollers (7) can be rotated by rotating the central gear (13). Device (1) according to claim 7, characterized in that the gears (12) can be attached to free ends of the rollers (7) or are integrally manufactured with them. Device (1) according to claim 7 or 8, characterized in that a drive means (14) is arranged on the central gear (13) or that the central gear (13) can be connected to a drive means (14). Device (1) according to claim 9, characterized in that the drive means (14) is designed as an electromechanical drive means (27) or as a lever which can be connected to a knob (15) in a torque-transmitting manner. Device (1) according to one of the preceding claims, characterized in that the at least one rolling body (11) is tubular or sleeve-shaped and is penetrated by a rod (22) extending into the free space (10), at the free end of which a tamping body (16) is formed, wherein the end of the rod (22) opposite the tamping body (16) projects from the lower part (2) and is movably mounted axially along the longitudinal axis of the free space (10). Device (1) according to one of the preceding claims, characterized in that a further rolling body (11) is arranged near the first ends of the rollers (7) of the second group (6) arranged in the lower part (2) and is rotatably mounted in the free space (10). Device (1) according to one of the preceding claims, characterized in that the upper part (3) has a slot which runs parallel to the longitudinal axis of the free space (10) and is provided for introducing the covering material into the free space (10). Device (1) according to one of the preceding claims, characterized in that the device (1) comprises a lifting device (18) with a lifting means (19) which can be moved at least partially into and out of the free space (10), so that a conically shaped smokable rod product can be moved at least partially out of the free space (10) by a movement of the lifting means (19). Device (1) according to claim 14, characterized in that the lifting device (18) comprises a lever which is movable relative to the lower part (2) and which is connected to the lifting means (19) in a manner that transmits movement.

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