RU2594787C1 - Dispensing device - Google Patents

Abstract

FIELD: machine building.

SUBSTANCE: group of inventions relates to devices for takeaway of sheet material from a roll. Takeaway system includes a takeaway device and a hollow cylindrical core. Core is made to support a roll of sheet material. Takeaway device comprises a body, a rotating shaft, a drive assembly and an energy storage system. Rotating shaft is made with a possibility of penetration into a roll. Drive assembly is connected, with a possibility of rotation, to the said rotating shaft. Shaft contains an engagement device with a possibility to lock rotation of the shaft with a roll. Triggered from the outside shaft rotation provides for accumulation of energy in the energy storage system by means of the drive assembly. Drive assembly is made with a possibility to get power from the energy storage system for temporary rotation of the rotating shaft. Engagement device comprises at least one ledge and/or at least one recess on the circumferential outer surface of the shaft.

EFFECT: there is ensured a fast and simple replacement of rolls and a possibility to lock rotation of the roll with a rotating shaft.

23 cl, 11 dwg

Description

FIELD OF THE INVENTION

The present invention relates to a dispensing device configured to dispense absorbent sheet material from a roll according to the preamble of claim 1. The dispenser is particularly suitable for wall mounting to dispense absorbent sheet material, or towels, to a user. The roll may be a continuous or intermittent tightly wound roll of towel.

BACKGROUND OF THE INVENTION

One problem often encountered when using a sheet dispenser is the lack of a readily visible front end of the sheet material. In this case, the user must look for the front end and then pull the sheet material from the roll and out of the dispenser. A dispenser is known with electric functions for supplying the front end, and the supply of sheet material, for example, starts when a user is detected by the proximity sensor, or the front end of the sheet material is automatically fed from the dispenser after the sheet is pulled by the user. However, such dispensers require electrical energy, which is typically supplied by connecting to a power supply network or through an electrical energy storage system including batteries. Connecting to the mains is expensive and limits the installation location, and batteries need to be replaced regularly.

These problems are solved in document US2010 / 0051737A1, which describes a dispenser for energy-saving web material. By recovering energy from a user who draws sheet material, supplying the front end of the sheet material is possible without connecting to an external power supply network or without batteries that need to be changed regularly.

Summary of the invention

An object of the present invention is to provide an inventive dispensing device for dispensing absorbent sheet material from a roll, the dispensing device providing a quick and easy replacement of the absorbent sheet material roll, while at the same time providing the ability to block the rotation of the roll with the rotational shaft of the dispensing device. This goal is achieved through the features characterizing part of paragraph 1 of the claims.

The dispensing device according to the invention is adapted to dispense absorbent sheet material from a roll disposed within said dispensing device. The dispensing device comprises: a dispensing device housing, a rotational shaft configured to penetrate said roll, a drive unit, and an energy storage system for storing energy. The drive unit is rotatably coupled to said rotational shaft, which comprises gear means configured to block rotation of said rotational shaft with said roll. The externally-induced rotation of said rotational shaft drives said drive unit, thereby providing energy storage in said energy storage system, and said drive unit is configured to supply energy from said energy storage system for temporarily rotating said rotary shaft.

The invention is characterized in that said engagement means comprises at least one protrusion and / or at least one recess located on a circumferential outer surface of said rotational shaft for radial engagement with said roll.

The solution according to the invention provides an effective and simple, possibly automatic, blocking of rotation of the roll with the rotational shaft when the rotational shaft axially penetrates the bore of the roll. It is not necessary to carry out any long and complicated manual blocking of the roll, and at least one protrusion and / or at least one recess possibly prevents erroneous installation of the roll, for example, by means of the fact that the protrusion / recess intuitively guides the maintenance personnel to the correct installation. Also, incorrect axial installation of the roll is difficult and even impossible when the roll itself is provided with an appropriate gearing means. In addition, the protrusion / recess may be configured to automatically block rotation in the corresponding means of engagement of the roll after installing the roll, optionally when the roll is first rotated. It seems that in the prior art there is no detailed description regarding the location of the roll on the rotational shaft, except that the roll is mounted on the rotational shaft. Therefore, the inventive solution has many advantageous aspects relative to the prior art.

Additional advantages are achieved through the implementation of one or more features of the dependent claims.

For example, a drive unit may be formed by an electric machine, said energy storage system may be formed by an electric energy storage system, and externally induced rotation of said rotational shaft can drive said electric machine, thereby generating electric energy that can be stored in said electric energy storage system, and wherein said electric machine may be configured to power electric energy from said electric energy storage system for temporarily rotating said rotational shaft.

In addition, the engagement means may comprise a spirally formed protrusion and / or recess located on the circumferential outer surface of said rotational shaft. The spiral shape of the protrusion and / or recess provides cost-effective manufacturing of the core of interchangeable rolls, since the core is usually made by spiral winding a strip of sheet material around the mandrel. Thus, the core can be very economically efficiently provided with at least one corresponding helical protrusion and / or recess.

Furthermore, the engaging means may comprise at least one retractable radial protrusion located on the circumferential outer surface of said rotational shaft. The advantage of the retractable radial protrusion is to provide a higher degree of freedom with respect to the angular orientation of the roll when it is inserted on the rotational shaft. If the angular position of the roll is such that the means of engagement with the rotational shaft is not inserted into the means of engagement of the core of the roll, this does not automatically prevent the roll from being pushed onto the rotational shaft. After insertion, the roll can simply be rotated into an angular position in which the means of engagement with the rotational shaft is configured to block the rotation of the roll.

Moreover, at least one retractable radial protrusion can be spring loaded into the protruding position. This arrangement further simplifies the insertion of the roll onto the rotary shaft, since after inserting the roll in any angular position, the roll can simply be rotated into an angular position in which the engagement means with the rotary shaft automatically clicks outward into the corresponding engagement means on the roll core, so that the roll is locked in rotation with rotary shaft. Moreover, the roll insertion is further simplified since the spring-loaded radial protrusion can be automatically retracted when the roll is inserted in any angular position.

The engaging means may also comprise at least one retractable radial protrusion located adjacent to the surface of the free end of said rotational shaft, and this radial protrusion is capable of axially mounting said roll on said rotational shaft. The result of the axial mounting of the roll on the rotary shaft is better control of the position of the front end of the sheet material and the prevention of any unwanted unintentional contact between the roll and the housing of the dispenser or other parts of the dispenser.

In addition, at least one retractable radial protrusion may be located on the spring web. The spring web provides an elegant, compact and reliable spring-loaded retractable radial protrusion.

In addition, the retractable radial protrusion can be configured to temporarily block said rotational shaft during radial indentation from its protruding position. Therefore, the wrong core presses the radial protrusion of the leaf spring to rotationally block the rotational shaft in a fixed, non-rotating position. The advantage of this configuration is to prevent the feature of the invention from automatically feeding the dispenser if the wrong roll core is inserted on the rotary shaft. Blocking rotation of the rotational shaft also leads to sliding friction during rotation between the roll and the core, so that the pulling force required to rotate the roll on the rotational shaft while removing sheet material from the roll increases. This increased pulling force creates the motivation for using the right roll.

Moreover, said temporary rotation of said rotational shaft can be carried out by bringing said drive unit for a predetermined period of time or by driving said drive unit so that said rotational shaft is rotated by a predetermined angle, said predetermined time period or predetermined angle being set or calculated based on Registered or estimated radial roll size. A time period or angle can be set to provide the desired length of the front end captured by the user. In addition, a time period or angle can advantageously be calculated based on the current recorded radial size of the roll, so that during the feed of the front end, substantially the same length of the front end of the sheet material is output, regardless of the current fill level of the roll.

Also, the housing of the dispensing device may include a bracket of the dispensing device and a casing pivotally attached to the bracket of the dispensing device, said rotational shaft being rotatably mounted on said casing or bracket. When the rotational shaft is located on the bracket, the casing may be less rigid and less complex because it does not have to support the drive unit and the energy storage system. However, when the rotational shaft is located on the casing, the rotational shaft protrudes upward when the casing is tilted 90 ° forward, thereby simplifying the insertion of a new roll onto the rotational shaft due to gravity and simplified handling.

In addition, at least one retractable radial protrusion can be mechanically actuated by pivoting said casing. Mechanical casting of the radial protrusion can provide an increased protrusion force of said protrusions, since it no longer depends on any springing. Moreover, the removal and insertion of the roll onto the rotary shaft is also simplified, since the radial protrusion is in the retracted position and no springing needs to be overcome.

The dispensing device may further comprise an additional rotational shaft configured to hold the additional roll. The additional rotational shaft is configured to rotatably attach to said drive unit or to an additional drive unit, said additional rotational shaft comprising engagement means configured to block rotation of said additional rotational shaft with said additional roll, wherein externally caused rotation of said additional rotational shaft drives said drive unit or said additional drive unit node, thereby providing energy storage in said energy storage system or in an additional energy storage system, and wherein said drive unit or said additional drive unit is configured to supply energy from said energy storage system or said additional energy storage system for temporarily rotating said additional rotational shaft. An advantage of this arrangement is the simultaneous holding of two rolls of absorbent sheet material. Thus, the capacity of the dispensing device is increased, and the service interval can be accordingly increased.

Moreover, an additional drive unit may be formed by an additional electric machine, said additional energy storage system may be formed by an additional electric energy storage system, wherein externally induced rotation of said additional rotational shaft may drive said electric machine or said additional electric machine, thereby providing the generation of electrical energy that is stored in said storage system The electrical energy or said additional electrical energy storage system, and wherein said electric machine or said additional electric machine may be configured to supply electric energy from said electric energy storage system or said additional electrical energy storage systems for temporary additional rotation of said rotary shaft. Electricity as an energy carrier provides a compact and cost-effective solution for energy storage and subsequent supply of the front end of the absorbent sheet material.

Moreover, the dispensing device may comprise means configured to register the radial roll size of both said roll and said additional roll, said dispensing device being configured to dispense absorbent paper sheet from a roll having the smallest radial roll size. The advantage of this scheme is the complete emptying of one roll before starting feeding from another roll, which eliminates any loss of sheet material due to the replacement of emptied rolls.

In addition, the dispensing device may include a rear wall, which is configured to at least partially contact the external wall, with the possibility of installation on which the said dispensing device is made, and the longitudinal axis of said rotational drive shaft is located in a closed dispensing device, essentially perpendicular to a plane formed by portions of said rear wall, which are configured to come into contact with said wall. The rotational shaft, which is oriented essentially perpendicular to the wall, with the possibility of mounting onto which the dispensing device is made, simplifies the replenishment of the dispensing device, since access from the front of the dispensing device is often the simplest. Side obstructions, such as walls or other dispensing devices, often make it difficult to easily access the dispensing device from its side.

Moreover, externally induced rotation of said rotary shaft can be effected by the user pulling the absorbent sheet material from said roll when positioned on said rotational shaft, and said temporary rotation of said rotational shaft can extend a predetermined length of said absorbent sheet material when said roll is located on said rotational shaft, in order to extend the front end of said absorbent Stow material.

The invention further relates to a dispensing system comprising a dispensing device as defined above and a hollow cylindrical core configured to support a roll of absorbent sheet material, the dispensing system may comprise: a dispensing device housing, a rotational shaft on which said core, a drive unit, and a system storing energy for storing energy, wherein said drive unit is rotatably coupled to said rotational shaft, moreover the removed rotational shaft and said core contain gearing means which are in a mutually engaged position, so that said rotational shaft is locked in rotation with said core, wherein the external rotation caused by said core drives said drive unit, thereby providing energy storage, which is stored in said energy storage system, and wherein said drive unit is configured to supply electrical energy from said an electrical energy storage system for temporarily rotating said core.

Brief Description of the Drawings

In the following detailed description of the invention, reference is made to the accompanying drawings, in which:

In FIG. 1 shows a perspective view of a dispensing device according to a first embodiment of the invention in a half open state,

In FIG. 2 shows the dispenser of FIG. 1 open

In FIG. 3 shows an electric feed mechanism according to the invention mounted in a dispenser,

In FIG. 4 shows a rotational shaft having a recess according to the invention,

In FIG. 5a shows a rotational shaft having a spring loaded radial protrusion according to the invention,

In FIG. 5b is a perspective view of FIG. 5a

In FIG. 5c is a perspective view of FIG. 5a

In FIG. 6a shows a rotational shaft having a spring loaded radial protrusion according to the invention,

In FIG. 6b is a perspective view of FIG. 6a

In FIG. 6c shows a top view of a rotational shaft according to the invention having a radial protrusion,

In FIG. 7 shows a dispenser according to the invention having two rotational shafts.

Detailed Description of Embodiments of the Present Invention

Various aspects of the invention will now be described with reference to the accompanying drawings, data to illustrate and not limit the invention, in which like elements are denoted by the same numbers, and variations in aspects of the invention are not limited to the particular embodiment shown, and are applicable to other variations of the invention.

In FIG. 1 shows a first embodiment of a dispensing device 10 according to the invention. The dispensing device 10 is configured to dispense absorbent sheet material from a roll 11 located inside said dispensing device 10. The dispensing device comprises a dispensing device housing that includes a dispensing device bracket 12, an outer casing 13 pivotally attached to the dispensing device bracket 12, and an inner casing 14, also pivotally attached to the bracket 12 of the dispensing device. Here, the dispensing device 10 is shown with the outer casing 13 turned to the open position and the inner casing 14 in the closed position, that is, in the half-open state. In the fully closed state, both housings 13, 14 are in the closed state. A window 16 in the inner casing 14 provides a visual control of the fill level of the roll 11 without having to open the inner casing 14. Moreover, thanks to a window (not shown) also in the outer casing 13, a visual control of the fill level of the roll 11 is possible without opening any of the casings 13, fourteen.

In FIG. 2 shows the dispenser of FIG. 1, but both the inner and outer casings 13, 14 are in the open position, that is, turned to the front of the dispensing device 10.

The roll 11 with the central hollow core 17 is also shown in an unstable position so that the rotational shaft 15 of the dispensing device is visible. The rotational shaft 15 is rotatably mounted on the inner casing 14 and is configured to penetrate at least a portion of the hollow core 17 of the roll 11. The rotational shaft 15 includes a gearing means that is capable of blocking the rotation of the rotational shaft 15 with the core 17 of the roll 11. Despite not shown in FIG. 1 or 2, the dispensing device 10 further comprises a drive unit in the form of an electric machine, which is rotatably connected to said rotational shaft, and an energy storage system for storing energy, in particular electric energy, connected to the drive unit.

The bracket 12, which contains the rear wall of the dispensing device 10, is configured to at least partially contact an external wall, which can be mounted on which the dispensing device 10 is made. The longitudinal axis of the rotational shaft 15 in the closed state of the dispensing device 10 is essentially perpendicular to the plane formed by the parts of the rear wall of the bracket 12, which are made with the possibility of contact with the said wall. This device is designed to have a substantially horizontally positioned rotary shaft 15 when mounted on a substantially vertical wall, as well as to provide easy replacement of the roll 11 of sheet material, since it provides good access to the roll 11 when turning the outer and inner casings 13, 14 of the dispensing device 10 to the open position. This de effect is achieved when the rotational shaft 15 is rotatably connected to the bracket 12 instead of the inner casing 14.

When the user needs a piece of absorbent sheet material, the user can grab the front end of the sheet material that is wound on the core 17 to form the roll 11. The front end is preferably located at least partially outside the dispensing device 10, for example, hanging to a predetermined length through the dispensing hole in the lower part dispensing device 10. When pulling the front end, the roll 11 begins to rotate due to the pulling force exerted by the user, and the sheet material is removed from the roll 11. The benefit By engaging the gearing means with the rotational shaft 15 and the corresponding gearing means on the core 17, the rotational shaft 15 can be blocked from rotation with the roll 11. Therefore, an externally induced rotation of the roll 11 also causes rotation of the rotational shaft 15. The rotational shaft 15 is rotatably connected to the electric machine which is configured to convert the pulling energy coming from the user into electrical energy that is supplied to the electrical energy storage system. Thus, pulling and pulling the sheet material from the roll 11 drives the electric machine, thereby generating electric energy that is stored in the electric energy storage system. The electric energy storage system is preferably formed by at least one capacitor. An electrical energy storage system may comprise a plurality of capacitors and / or batteries.

When the user has pulled out the required amount of sheet material, he can tear off the sheet material on the tear-off segment located on the dispenser 10, or something similar, to separate the pulled sheet material from the roll 11. As a result, the rotation of the roll 11 starts to stop due to a shortage external pulling force and resistance to rotation caused mainly by an electric machine working as an electric generator. After a certain delay, the electric machine can be transferred, for example by means of an electric control unit, to work as an electric motor and to rotate the rotational shaft 15 for a certain period of time. Bringing the rotational shaft 15 causes the rotational shaft 15 to rotate and thereby supply a certain length of sheet material from the roll 11. The supplied certain length of the sheet material is selected to provide a gripping front end of the sheet material so that the user can easily find, grasp and extend the front end when the next need arises in sheet material. Without supplying a certain length of sheet material after the user pulls out, the front end of the sheet material is usually difficult to find and difficult to grasp, since the front end of the sheet material is usually located close to the tear-off segment of the dispenser 10. The tear-off segment can be formed, for example, by means of a toothed tear-off edge of the lower the end of the casing 13, 14.

The control unit of the dispensing device 10 can additionally register the direction of rotation of the roll 11 while pulling sheet material out of it. By this means, the control unit can cause the electric machine to rotate the rotational shaft 15 in the same direction during the automatic feeding of sheet material. This device ensures that the sheet material is actually supplied when driving the electric machine, and not just wound instead on the roll 11.

According to an alternative control method for extending the front end of said absorbent sheet material from the dispensing device 10, the dispensing device may be provided with a proximity sensor device to determine a user's proximity. A certain approximation of the user is interpreted by the control unit as a desire to pull the sheet material from the dispensing device 10, and in response to this, the control unit is configured to cause the electric machine to supply a certain length of sheet material from the roll 11 to facilitate detection and capture of the front end of the sheet material. When the front end is detected and captured, the user pulls out the sheet material to pull out the required amount of sheet material, and during said removal of the sheet material, the electric machine is rotated and produces electrical energy that is stored in the electric energy storage system for the following case of the front end extension. The proximity sensor device may be formed using one or more proximity sensors, which are based on one or more proximity measurement technologies, such as capacitive measurement, measurement by emitting and detecting infrared light, and so on.

In FIG. 3 schematically shows a diagram of a dispensing system supply system 20. The dispensing device 10, which has a different circuit than the dispensing device of FIG. 1 and 2, here is shown in front view and with a front cover removed to expose the inside of the dispensing device 10. The dispensing device 10 is provided with a rotational shaft 15, which is configured to penetrate the center of the roll 11 of sheet material, for rotational support of the roll 11 inside of the dispensing device 10. The rotational shaft 15 has an external cylindrical surface 21 with an axial straight protrusion 22 extending in the axial direction of the rotational shaft 15. An axial thrust flange 23 at the rear end of the rotational shaft 1 5 for axial support of the roll 11 is provided here with gear teeth 24 that mesh with the teeth 25 of the smaller gear 26 of the intermediate double gear 27 having two engaged gears, namely, the smaller gear 26 and the larger gear 28. Electric machine 29 contains a rotary shaft provided with a gear wheel 30, the teeth of which are engaged with the teeth 31 of the larger gear 28 of the said intermediate double gear 27. This gear device about provides a gear having a gear ratio lowering the rotational speed, which allows the speed of the electric machine 29 to be significantly higher than the rotational speed of the rotational shaft 15, which is configured to support the roll 11. This lower gear ratio may be necessary in order to allow a relatively low power electric machine 29 to drive the rotational shaft 15 and the roll 11 to extend the front end of the sheet material. Also schematically shown is an electric energy storage system 32, an electronic control unit 33, and an proximity sensor device 35, also located inside the dispensing device of FIG. 3. The dispensing device includes a bracket 12 of the dispensing device, which has an outer side wall 35 and a lower dispensing hole 34.

According to an alternative design of the dispensing device supply system 20 not shown, the electric energy storage system, the electric machine, and the transmission can be located vice versa inside the rotational shaft 15 supporting the roll. This arrangement has many advantages, such as physical protection of the parts of the feed system 20, a more compact design and higher reliability due to the reduced risk of collision with other parts.

When the control unit 33 reaches the sheet feed instruction, several different feed strategies are available. For example, the temporary rotation of the rotational shaft 15 can be carried out simply by driving the electric machine 29 for a predetermined period of time. This feed control strategy is easy to implement, but the resulting feed length may vary due to the fill level of the roll, the energy level of the electric energy storage system 32, the friction of rotation of the rotational shaft 15 and the roll assembly, and so on. Alternatively, the control unit 33 may drive the electric machine 29 so that the rotational shaft 15 is rotated by a predetermined angle. This control strategy leads to a more constant feed length, but requires an input signal related to the angular position of at least one part of the gear, thereby increasing the cost of the dispensing device 10. An even better feed result can be achieved by providing the dispensing device 20 with size determination means a roll (not shown), since then the control of the electric machine 29 can also be carried out based on the current filling level of the roll 11. The means for determining the size the roll can be implemented by a mechanical and / or electrical sensor that responds to the radial size of the roll 11. According to another example, the current level of roll filling can be estimated by tracking the accumulated number of sheet feed events for a single roll 11 and estimating the total amount of sheet material pulled out based on predetermined information relating to the average length of pulling of the sheet material for each pulling case.

In FIG. 2, engagement means with the rotary shaft 15 is formed by a helically extending protrusion 18 extending in a spiral winding direction on the outer cylindrical surface 21 of the rotational shaft 15. The helical protrusion 18 may extend along the entire length of the rotational shaft 15 in the axial direction of the rotational shaft 15, but it is also possible other lengths of passage, provided that the rotation of the rotational shaft 15 with the core 17 of the roll 11 is reliably blocked. The core 11 itself is provided with appropriate means engagement 19, which is here, therefore, formed as a helically extending groove 19. During the installation of the roll 11, the maintenance staff replacing the rolls 11 rotates the roll 11 and / or the rotational shaft 15 until the protrusion 18 and the groove 19 coincide in the first mutual position gearing. Then, the roll 11 is simply pushed onto the rotary shaft 15, while the roll 11 rotates in the spiral winding direction until the roll 11, for example, abuts against the thrust shoulder 34 of the rotary shaft 15. Perhaps, when the roll 11 is inserted, the force is essentially vertical gravity can cause a sufficient downward force to be applied to the roll 11 so that the insertion of the roll 11 on the rotary shaft 15 does not require any additional force.

As illustrated in FIG. 4, the rotary shaft 15 can alternatively be provided on the contrary with a recess 37, such as a groove, on the circumferential outer surface 21 of said rotational shaft 15. Here, the groove 37 extends axially in a straight line, but alternatively, it can extend into the form of spiral winding. Optionally, the cylindrical outer surface 21 of the rotary shaft 15 may be provided with one or more radial protrusions 18, and with one or more radial recesses 37. According to another alternative design, the outer surface 21 of the rotational shaft 15 may have a non-cylindrical cross-sectional shape, which made with the possibility of interaction with the core 17 of the roll 11, which has a corresponding non-cylindrical cross-sectional shape of the inner surface of the roll. For example, the outer surface of the rotational shaft 15 may have a rectangular or elliptical cross-sectional shape.

According to yet another design of the means of engagement with the rotational shaft, as illustrated in FIG. 5a, the means for engaging with the rotary shaft may comprise at least one retractable radial protrusion 50 located on the circumferential outer surface 21 of said rotary shaft 15. The retractable radial protrusion 50, which is biased between the protruding position, as seen in FIG. 5a and 5b, and the retracted position, as seen in FIG. 5c provides more design possibilities for the corresponding engagement means of the core 17, which is adapted to penetrate the rotational shaft 15. No longer need to provide the core 17 with the engagement means, which extends axially for a certain length of the core 17, since it is no longer necessary it is imperative to engage the engagement means of the core 17 with the engaging means of the rotational shaft 15 also during the installation of the core 17 on the rotational shaft 15, i.e. during axial displacement of the core 17 and the rotational shaft 15. Instead, the radial protrusion 50 can be set to a retracted position in which the radial protrusion 50 does not protrude beyond the outer cylindrical surface 21 of the rotational shaft 15. When the core 17 reaches an end position where it can abut in the thrust shoulder 23 of the rotational shaft 15, the radial protrusion 50 can be installed in the protruding position, in which the radial protrusion 50 is configured to rotationally block the rotational shaft 15 s rdechnikom 17, as illustrated in FIG. 5b, on which the core 17 with a spiral inner groove 19 is indicated by dashed lines.

It is possible that the shape and configuration of the radial protrusion 50 and the core 17 are such that the radial protrusion 50 and the core 17 are mutually engaged to provide said rotational locking only in relative angular positions. For example, the core 17 may be provided with at least one separate opening or cavity in the inner cylindrical surface of the core 17, and at least one radial protrusion 50 of the rotational shaft 15 is adapted to engage with said at least one separate opening or cavity when said radial protrusion 50 and said aperture or cavity coincide in a radial direction. Therefore, if the radial protrusion 50 and the opening or cavity do not coincide in the radial direction after installing the core 17 in the axial direction on the rotational shaft 15, the relative rotation between the rotational shaft 15 and the core 17 automatically leads to the radial protrusion 50 coinciding in the radial direction with opening or cavity. In practice, this means that the maintenance personnel who replace the rolls 11 do not need to solve the problem of the correct and complete installation of the roll 11, that is, so that the rotational shaft 15 is blocked in rotation with the core 17 of the roll 11. Instead, just pushing may be sufficient core 17 onto the rotary shaft 15, and subsequent blocking of rotation can occur automatically when the roll 11 is rotated in an angular position in which the radial protrusion 50 coincides in the radial direction with the opening or cavity. Of course, this also happens when the core 17 contains one or more axial straight or helically extending grooves.

As illustrated in FIG. 5a, the retractable radial protrusion 50 is preferably spring loaded in the protruding position. This can be accomplished by arranging the retractable radial protrusion 50 on a spring web 51 that is attached to the rotational shaft 15. A spring web 51, which is preferably aligned with the axial direction 53 of the rotational shaft 15, can be attached to the inner cylindrical surface 54 of the rotational shaft 15 in the first the end region 55 of said spring web 51. The spring web 51 can be attached to the rotary shaft 14 using any conventional fastening means, such as anicheskoe fixing, gluing or the like. Alternatively, the spring web 51 may be integrally formed with the rotary shaft 15. A suitable material of the spring web 51 is a plastic or metal material. The radial protrusion 50 may be located in the window 56 in the rotational shaft 15. In FIG. 5c illustrates how a spring web 51 including a radial protrusion 50 is temporarily pressed into the retracted position due to the absence of any recess in the inner cylindrical surface of the core 17 at the moment. Other springing devices for the radial protrusion 50 are possible, such as a coil spring located in a radial cavity in the outer cylindrical surface of the rotational shaft 15, or the like.

The rotary shaft 15 according to the invention can be further provided with a device for rotationally locking the rotational shaft 15 with a dispenser housing using a core 17 which does not have an engaging means that corresponds to the means for engaging with the rotational shaft 15. One possible implementation of such rotation blocking is shown schematically in FIG. 5a, 5b and 5c. Here, the spring web 51 is configured to temporarily block the rotation of the rotational shaft 15 with the housing of the dispenser when radially pressing the spring web 51 to a predetermined length. The rotation blocking is carried out when the leaf spring 51 is pressed in by the amount at which the second free end 57 of the leaf spring 51 engages with the fixed housing element of the dispenser. Here, the stationary member is constituted by an internal stationary rotational shaft 58 that rotatably supports the rotational shaft 15 at the end regions of the rotational shaft 15. The stationary rotational shaft 58 is provided with engagement means in the form of one or more radial protrusions 59 that engage with the free end 57 of the leaf spring 51 so as to prevent rotation of the rotational shaft 15. The free end 57 of the leaf spring 51 may be provided with suitable engagement means, such as a cavity 60, for simple rotational locking of the rotational shaft 15 with the internal stationary rotary shaft 58. The spring web 51 is aligned with the longitudinal axis 53 of the rotational shaft 15 and can be located with the free end 57 near the free end 62 of the rotational shaft 15 or near the thrust shoulder 23 of the rotational shaft shaft 15. As a result of blocking the rotation of the rotational shaft 15 when using an inappropriate core 17, it is possible to pull out a sheet of paper only if the core 17 slides during rotation by a locked a rotary shaft 15, and the use of the function of energy recovery and supply of sheet material is blocked.

The core 17 of the roll 11 can advantageously also be axially attached to the rotary shaft 15 to prevent the axial displacement of the core 17, which can lead to unwanted contact between the roll 11 and the internal parts of the dispensing device 10. One solution to prevent this is to provide the rotational shaft 15 means of engagement, which contains at least one retractable radial protrusion 61 located next to the surface 62 of the free end of the rotational shaft 15, and this p dially projection 61 being axially securing the core 17 and roll on a rotary shaft 15, as illustrated in FIG. 6a, 6b and 6c. The radial protrusion 61 must be retractable to allow the roll 11 to be installed on the rotational shaft 15 and to remove the roll 11 from the rotational shaft 15.

The radial protrusion 61 is preferably spring-loaded radially outward to automatically return to the protruding position when the full roll 11 extends beyond the radial protrusion 61 in the axial direction, that is, when the radial protrusion 61 no longer overlaps the core 17 in the radial direction. The radial protrusion 61 may be provided with a surface (not shown) that is axially chamfered from the wall of the dispensing device that supports the rotational shaft 15 to automatically bias the radial protrusion 61 into the retracted position when it is initially engaged with the core 17. Removing the core 17 to replace the roll may require manual pushing of the radial protrusion 61 into the retracted position, thereby removing the core 17.

Spring radial protrusion 61 can be spring loaded by locating the retractable radial protrusion 61 on the free end of the spring web 63, which is preferably aligned with the axial direction 53 of the rotary shaft 15. The spring web 63 can be a separate part that is attached to the rotational shaft 15 in the attachment position 64, which may be located, for example, on the inner surface of the rotational shaft 15, as shown in FIG. 6c. The radial protrusion may protrude through a window 65 in the rotary shaft 15. Alternatively, the spring web 63 can be integrally formed with the rotational shaft 15, whereby the spring web can be retracted by cutting two longitudinal through slots in the rotational shaft 15, thus, obtaining the spring web 63 formed as a single unit, as shown in FIG. 6a and 6b.

Optionally, a spring web 63 supporting the radial protrusion 61 for axially securing the core 17 may further be provided with an additional radial protrusion 66, which is adapted to engage with the recess or cavity of the core 17, similar to the radial protrusion described with reference to FIG. 5a-5c.

The additional radial protrusion 66, which is adapted to engage with a recess or cavity in the inner cylindrical surface of the core 17, preferably has a shape that corresponds to the dimensional shape of said recess or cavity. For example, as shown in FIG. 6a-6c, if the rotational shaft 15 is rotatably locked with a core 17 having a spiral extending inner groove 19, the additional radial protrusion 66 accordingly has an elongated shape that is provided with an angular orientation that corresponds to the spiral angle of the spiral extending groove. Therefore, the longitudinal direction of the elongated radial protrusion 66 may form an angle α to the axial direction 53 of the rotational shaft 15 in the range of about 40 ° -85 ° when the rotational shaft 15 is adapted to receive a core 17 having a helically extending groove or recess 19. This device is additional radial protrusion 66, of course, can be applied to other radial engaging protrusions of the rotational shaft 15. Other forms of one or more radial engaging protrusions may include a cylindrical, polygonal, or the like, with or without a bevel to simplify possible automatic blocking when spring loaded radial protrusions 50, 61, 66 penetrate into the core 17.

As an alternative to the spring-loaded radial protrusion 50, 61, 66 on the rotary shaft 15, at least one retractable radial protrusion can be mechanically driven by the rotational movement of one of the said housings 14, 15 between the closed and open positions. Such a solution can be made by means of a mechanical link (not shown) that is attached to the radial protrusion 50, 61, 66 and which is actuated by turning the casing 13, 14, so that the radial protrusion 50, 61, 66 moves to the retracted position when turning the casing 13, 14 to the open position and moves to the protruding position when the casing 13, 14 is rotated to the closed position.

The dispenser 10 having only one rotational shaft 15 is described above, but the invention is equally applicable to the dispenser having two or more rotational shafts. In FIG. 7 shows a diagram of a dispenser having an additional rotational shaft 70 configured to hold an additional roll. The additional rotational shaft 70 is rotatably mounted on the dispenser housing, similar to the adjacent rotational shaft 15. The additional rotational shaft 70 is rotatably connected either to the previously described electric machine or to an additional drive unit, preferably formed by an additional electric machine . Thus, a dispensing device circuit with one common electrical machine may be provided, which is rotatably connected to all rotatable rotational shafts 15, 70, or each rotatable rotational shaft 15, 70 is rotatably connected to a separate electric machine. The additional rotational shaft 70 includes gear means configured to block the rotation of the additional rotational shaft 70 with an additional roll.

The following describes the operation of the dispensing device with two rotational shafts with an electric drive. The external rotation caused by the additional rotational shaft 70 due to the pulling force exerted by the user on the front end of the sheet material drives an electric machine or an additional electric machine, depending on the circuit of the dispensing device, thereby generating electrical energy. The generated electric energy is stored in the previously described electric energy storage system or in an additional energy storage system specially provided for the additional rotational shaft 70, in particular, the electric energy storage system. In determining that a front end extension is required, either the electric machine or the additional electric machine is energized and driven by electric energy from the electric energy storage system or the additional electric energy storage system to temporarily rotate the additional rotational shaft 70. An accurate diagram of the electric machines and storage systems of electric energy can vary and depends mainly on the specific system of the dispensing device as a whole, and on giving mechanism. For example, if the feed mechanism includes an electric machine and an electric energy storage system is used that is integrated in the rotating rotary shaft itself, then the additional rotational shaft 70 is advantageously provided with a separate feed mechanism including an additional electric machine and an additional electric energy storage system. However, if the feed mechanism is mounted outside the rotating rotary shaft 15, 70, it is advantageous simply to bring both the rotational shaft 15 and the additional rotational shaft 70 using a common feed mechanism, i.e. a common electric machine and a common electric energy storage system. If both the rotational shaft 15 and the additional rotational shaft 70 are driven using a common feed mechanism, a mechanical clutch may be required to control the transmission of torque so that both rotational shafts 15, 70 are not driven simultaneously.

As illustrated in FIG. 7, the rotational shaft 15 and the additional rotational shaft 70 can be located on a common element 71, which is made with the possibility of horizontal sliding by a distance d inside the housing of the dispensing device. The common element 71 is shown in the farthest left position in FIG. 7 and can be biased with sliding to the farthest right position, as indicated by a dashed line. The feed is controlled so that the outermost roll is emptied first, and feed continues using a more central roll. When service personnel replenish dispenser 10, the common element 71 is first shifted to another extreme position, i.e., in FIG. 7 to the farthest right position, and a new full roll 11 is mounted on the most central rotational shaft 15, 71. This feeding and replenishment procedure ensures the most efficient use of the internal volume of the dispensing device, since, due to size restrictions, the dispensing device 10 may be able to be received new full roll only on the most central rotary shaft.

In particular, when the dispensing device 10 is configured to supply sheet material from one of two rolls of sheet material, it is preferable to have information about the filling level of each roll. Then this information can be used to determine from which roll to distribute the sheet material using an electrically driven feed mechanism. The roll fill level can be determined, for example, by recording the radial roll size for each roll in the dispenser 10, and the radial roll size can be detected by electrical and / or mechanical sensors, such as proximity sensors, and the like. Different feeding strategies may be provided, for example, feeding sheet material from a roll having the smallest radial roll size, and when empty, starting feeding from an adjacent roll. However, information about the level of filling of the roll may be advantageous for controlling the electrical operation of the rotational shafts 15, 70, so that the required length of sheet material is advanced by means of a feed mechanism with an electric drive. Therefore, this is also interesting for a single roll dispenser.

As an alternative to fill level information, the dispenser may be equipped with means for confirming that the sheet material is indeed being supplied from the dispenser 10 upon receipt of a feed command from the control unit. When it is determined that no sheet material is being fed, despite a feed command, it can be concluded that the current roll is empty and that another roll should be started. The determining means for this task can use the determination of the presence of an object, that is, sheet material, in the dispensing opening of the dispensing device, for example, using a light source in conjunction with a photoelectronic receiver, or an proximity sensor. Then the lack of determination of the presence of sheet material in the dispensing hole, despite the simultaneous supply, can be interpreted as the fact that the roll is empty.

The circuit of the dispensing device of FIG. 1-7 can be changed widely within the scope of the claims. For example, the rotary shaft may be mounted on a bracket protruding from the dispensing device from the wall, with the possibility of attaching to which the dispensing device is made, as shown in FIG. 3 and 7. Alternatively, the rotational shaft may be mounted on the inner rotary housing, as shown in FIG. 1 and 2. In addition, the rotary shaft according to another alternative can be mounted on the outer casing, thereby eliminating the need for an inner casing, which, therefore, can be omitted. In addition, the rotational shaft can be oriented with the longitudinal axis, essentially perpendicular to the plane of the rear wall of the bracket, or essentially parallel to the plane.

A drive unit has been described with respect to an electric machine, and an energy storage system has been described with respect to an electric energy storage system, such as one or more batteries and / or capacitors. However, the drive unit and the energy storage system may alternatively have other configurations. For example, it may be a fully mechanical system in which an energy storage system is formed by a spring, and a drive unit is formed by a mechanical link interconnecting the spring with the rotational shaft and driving the rotational shaft when the front end is needed. Similar to an embodiment using an electric machine as a drive unit, the mechanical drive unit must also be able to receive rotational energy from the rotational shaft that rotates in the first direction of rotation, and subsequently cause the rotational shaft to rotate in the same direction while feeding the front end. The energy storage system may include a flywheel energy storage device configured to temporarily store kinetic energy, which is obtained due to the fact that the user pulls a tape of absorbent sheet material. Alternatively, the energy storage system may have a load that can be moved between at least two different vertical positions corresponding to different levels of potential energy, or the energy storage system can be formed by a hydraulic accumulator that can store the hydraulic fluid under pressure and subsequently supply hydraulic fluid under pressure to a hydraulic machine, which is rotatably connected to a rotational shaft for casts.

The phrase “said rotational shaft is rotatably mounted on the dispenser housing” in this document means that the rotational shaft is a part separate from the dispenser housing and that the rotational shaft is mounted on the dispenser so that the rotational shaft can rotate while the housing The dispensing device is stationary. In addition, the phrase “blocking rotation of said rotary shaft with said roll” in this document means that the roll and rotary shaft are separate parts and that they can be locked together rotatably around a common axis of rotation, so that the roll cannot rotate without causing rotation of the rotational shaft, and vice versa. The term “rotatably coupled” in this document means that rotational movement can be transferred from one object to another object.

The reference numbers mentioned in the claims are not to be understood as limiting the scope of protection of the claims, and their sole purpose is to facilitate understanding of the claims.

As you can understand, the invention can be modified in various obvious respects, without departing from the scope of the attached claims. Accordingly, the drawings and description should be construed as illustrative and not restrictive in nature.

Claims (23)

1. Dispensing device (10), configured to dispense absorbent sheet material from a roll (11) located inside the dispensing device (10), the dispensing device (10) comprising: a dispensing device housing, a rotational shaft (15) configured to penetration into the roll (11), the drive unit, and the energy storage system (32) for storing energy, the drive unit being rotatably connected to the rotational shaft (15), and the rotational shaft (15) comprises an engaging means adapted to block rotation of the rotational shaft (15) with the roll (11), and the external rotation of the rotational shaft (15) caused by the drive unit, thereby accumulating energy in the energy storage system (32), and the drive unit is configured to supply energy from an energy storage system (32) for temporarily rotating a rotational shaft (15), characterized in that the engagement means comprises at least one protrusion (18, 22, 50, 61, 66) and / or at least one recess (37) located on the district external turn NOSTA (21) rotational shaft (15) for a radial engagement with the roll (11), wherein the engagement means comprises a projection (18) and / or indentation in the form of a helix disposed on the circumferential outer surface (21) rotational shaft (15). 2. A dispensing device (10) configured to dispense absorbent sheet material from a roll (11) located inside the dispensing device (10), the dispensing device (10) comprising: a dispensing device housing, a rotational shaft (15) configured to penetration into the roll (11), the drive unit, and the energy storage system (32) for storing energy, the drive unit being rotatably connected to the rotational shaft (15), and the rotational shaft (15) comprises an engaging means adapted to block rotation of the rotational shaft (15) with the roll (11), and the external rotation of the rotational shaft (15) caused by the drive unit, thereby providing energy storage in said energy storage system (32), and wherein the drive unit is configured to power energy from the energy storage system (32) for temporary rotation of the rotational shaft (15), characterized in that the engagement means comprises at least one protrusion (18, 22, 50, 61, 66) and / or at least one recess (37 ) located on the district Shnei surface (21) rotational shaft (15) for a radial engagement with the roll (11), wherein the engagement means comprises an axially continuous recess (37) disposed on the circumferential outer surface (21) rotational shaft (15). 3. A dispensing device (10) configured to dispense absorbent sheet material from a roll (11) located inside the dispensing device (10), the dispensing device (10) comprising: a dispensing device housing, a rotational shaft (15) configured to penetration into the roll (11), the drive unit, and the energy storage system (32) for storing energy, the drive unit being rotatably connected to the rotational shaft (15), and the rotational shaft (15) comprises an engaging means adapted to block rotation of the rotational shaft (15) with the roll (11), and the external rotation of the rotational shaft (15) caused by the drive unit, thereby providing energy storage in said energy storage system (32), and wherein the drive unit is configured to power energy from the energy storage system (32) for temporary rotation of the rotational shaft (15), characterized in that the engagement means comprises at least one protrusion (18, 22, 50, 61, 66) and / or at least one recess (37 ) located on the district the back surface (21) of the rotational shaft (15) for radial engagement with the roll (11), and the means of engagement contains at least one retractable radial protrusion (50, 66) located on the peripheral outer surface (21) of the rotational shaft (15), wherein the rotational shaft (15) contains a device for blocking the rotation of the rotational shaft (15) with the housing of the dispensing device when installing the roll (11), which does not have an engaging means that corresponds to the means of engagement of the rotational shaft (15). 4. Dispensing device (10), configured to dispense absorbent sheet material from a roll (11) located inside the dispensing device (10), the dispensing device (10) comprising: a dispensing device housing, a rotational shaft (15) configured to penetration into the roll (11), the drive unit, and the energy storage system (32) for storing energy, the drive unit being rotatably connected to the rotational shaft (15), and the rotational shaft (15) comprises an engaging means adapted to block rotation of the rotational shaft (15) with the roll (11), and the external rotation of the rotational shaft (15) caused by the drive unit, thereby providing energy storage in said energy storage system (32), and wherein the drive unit is configured to power energy from the energy storage system (32) for temporary rotation of the rotational shaft (15), characterized in that the engagement means comprises at least one protrusion (18, 22, 50, 61, 66) and / or at least one recess (37 ) located on the district the back surface (21) of the rotational shaft (15) for radial engagement with the roll (11), and the means of engagement contains at least one retractable radial protrusion (61) located next to the surface (62) of the free end of the rotational shaft (15), and this radial protrusion (61) is configured to axially mount the roll (11) to the rotational shaft (15) when the full roll (11) has passed the radial protrusion (61) in the axial direction. 5. The dispensing device (10) according to any one of paragraphs. 1-4, characterized in that the drive unit is formed by means of an electric machine (29), said energy storage system (32) is formed by an electric energy storage system, wherein an external rotation of the rotational shaft (15) caused by said engine drives said electric machine (29) thereby ensuring the generation of electrical energy that is stored in said electric energy storage system, and wherein the electrical machine (29) is configured to supply electrical energy from the xp system neniya electrical energy for temporarily rotating the rotary shaft (15). 6. The dispensing device according to any one of paragraphs. 1-4, characterized in that the said at least one retractable radial protrusion (50, 61, 66) is spring-loaded in the direction of the protruding position. 7. The dispensing device according to any one of paragraphs. 1-4, characterized in that the retractable radial protrusion (50, 61, 66) temporarily blocks the rotational shaft (15) when radially indented from its protruding position. 8. The dispensing device according to any one of paragraphs. 1-4, characterized in that the temporary rotation of the rotational shaft (15) is carried out by operating the drive unit for a predetermined time or by operating the drive unit so that the rotational shaft (15) is rotated by a predetermined angle, wherein the predetermined time or the predetermined angle is set or calculated based on registered or estimated radial roll size. 9. The dispensing device according to any one of paragraphs. 1-4, characterized in that the housing of the dispensing device comprises a bracket (12) of the dispensing device and a casing (13, 14) pivotally attached to the bracket (12) of the dispensing device, the rotational shaft (25) being mounted for rotation on the casing (13 , 14) or bracket (12). 10. A dispensing device according to claim 9, characterized in that said at least one retractable radial protrusion (50, 61, 66) is mechanically actuated when the said casing is rotated (13, 14). 11. The dispensing device according to any one of paragraphs. 1-4, characterized in that it contains an additional rotational shaft (70) made with the possibility of holding an additional roll, and the additional rotational shaft (70) is configured to rotate either to the drive unit or to the additional drive unit, and additional the rotational shaft (70) comprises an engaging means adapted to block the rotation of the additional rotational shaft (70) with an additional roll, wherein the rotation of the additional the rotary shaft (70) drives a drive unit or an additional drive unit, thereby providing energy storage in said energy storage system (32) or in an additional energy storage system, and wherein the drive unit or additional drive unit is configured to supply energy from the system (32) energy storage or an additional energy storage system for temporarily rotating the additional rotational shaft (70). 12. A dispensing device (10) according to claim 11, characterized in that the additional drive unit is formed by an additional electric machine, the additional energy storage system (32) is formed by an additional electric energy storage system, and the rotation of the additional rotational shaft (15) caused from the outside causes action of an electric machine (29) or an additional electric machine, thereby ensuring the generation of electrical energy that is stored in an electrical energy storage system or supplement an electric energy storage system, and wherein the electric machine (29) or an additional electric machine is configured to supply electric energy from an electric energy storage system or an additional electric energy storage system for temporarily rotating an additional rotational shaft (15). 13. A dispensing device according to claim 10, characterized in that the dispensing device (10) comprises means configured to register a radial size of both said roll (11) and said additional roll, wherein the dispensing device (10) is configured to issue absorbent paper sheet from a roll (11) having the smallest radial roll size. 14. The dispensing device according to any one of paragraphs. 1-4, characterized in that the dispensing device (10) contains a rear wall, which is configured to at least partially contact the external wall, with the possibility of installation on which the dispensing device (10) is made, while the longitudinal axis (53) of the rotational the shaft (15) and / or the additional rotational shaft (70) in a closed dispensing device is located essentially perpendicular to the plane formed by the parts of the rear wall, which are made with the possibility of contact with the wall. 15. The dispensing device according to any one of paragraphs. 1-4, characterized in that the externally induced rotation of the rotational shaft (15) and / or the additional rotational shaft (70) is carried out by pulling the absorbent sheet material by the user from the roll (11) and / or the additional roll when located on the rotational shaft (15) or an additional rotational shaft (70), while temporarily rotating the rotational shaft (15) and / or the additional rotational shaft (70) advances a piece of absorbent sheet material from the roll (11) and / or the additional roll, with the aim Extension of the front end of the absorbent sheet material. 16. Dispensing device according to claim 4, characterized in that the radial protrusion (61) for axial fastening of the roll (11) is located on the leaf spring (63). 17. A dispensing device according to claim 16, characterized in that the leaf spring (63) supporting the radial protrusion (61) for axial fastening of the roll (11) is further provided with an additional radial protrusion (66), which is adapted to engage with a recess or cavity of the core (17) or roll (11). 18. Dispensing device according to claim 3, characterized in that the leaf spring (51) is attached to the rotational shaft (15), while the retractable radial protrusion (50) is located on the leaf spring (51), and the radial protrusion (50) is located in holes (56) in the rotational shaft (15). 19. The dispensing device according to any one of the preceding paragraphs. 3 or 18, characterized in that the leaf spring (51) attached to the rotational shaft (15) is configured to temporarily block the rotation of the rotational shaft (15) with the housing of the dispensing device when radially pressing the leaf spring (51) to a predetermined length. 20. The dispensing device according to claim 19, characterized in that the rotation is blocked by engaging the free end (57) of the leaf spring (51) with the fixed housing element of the dispensing device. 21. The dispensing device according to claim 20, characterized in that it comprises an internal stationary shaft (58), which motionlessly supports the rotational shaft (15) at the end regions of the rotational shaft (15), wherein the stationary shaft (58) contains an engaging means in the form of one or more radial protrusions (59), which is arranged to engage with the free end (57) of the leaf spring (51) to temporarily prevent rotation of the rotational shaft (15). 22. A dispensing device according to claim 21, characterized in that the free end (57) of the leaf spring (51) is provided with suitable gearing for blocking the rotation of the rotational shaft (15) with the fixed shaft (58). 23. A dispensing system comprising a dispensing device according to any one of paragraphs. 1-12, and a hollow cylindrical core (17) configured to support a roll of absorbent sheet material, the rotational shaft (15) comprising engaging means configured to block rotation of the rotational shaft (15) with the core (17), wherein the core (17) is provided with appropriate gearing means (19), the dispensing system comprises: a dispensing device body, a rotational shaft (15, 70) on which the core (17), a drive unit, and an energy storage system (32) for storing energy are located, wherein drive the assembly is rotatably connected to the rotational shaft (15, 70), wherein both the rotational shaft (15, 70) and the core (17) contain gearing means which are in a mutually engaged position, while the rotational shaft (15, 70) blocked from rotation with the core (17), and the rotation of the core (17) caused from the outside activates the drive unit, thereby providing energy storage that is stored in said energy storage system (32), and wherein the drive unit is configured to power Coy energy from the electric energy storage system (32) for temporarily rotating said core (17).

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