AU2012397325B2

AU2012397325B2 - Dispenser

Info

Publication number: AU2012397325B2
Application number: AU2012397325A
Authority: AU
Inventors: Gunilla Himmelmann; Robert Kling
Original assignee: SCA Hygiene Products AB
Current assignee: Essity Hygiene and Health AB
Priority date: 2012-12-20
Filing date: 2012-12-20
Publication date: 2016-05-12
Anticipated expiration: 2032-12-20
Also published as: PL2934259T3; US20150327735A1; CN104869880A; RU2015129494A; CN104869880B; EP2934259A4; EP2934259A1; WO2014098672A1; EP2934259B1; MX2015007956A; AU2012397325A1; CA2893982A1; EP2934259B8; ES2633862T3; RU2613168C2

Abstract

A dispenser (2) for tissue paper comprising a housing (4) is provided. The housing (4) comprises a first seat (6) for a first roll (8) or a first stack of tissue paper and a second seat (10) for a second roll (11) or a second stack of tissue paper. The housing (4) is provided with a first dispensing position (12) and a second dispensing position (14), from which first and second dispensing positions (12, 14) tissue paper is graspable for dispensing thereof. The dispenser (2) comprises a blocking arrangement (16) for selectively blocking either the first dispensing position (12) or the second dispensing position (14). The dispenser (2) comprises a sensor device (50) arranged to sense at least one position of the blocking arrangement (16), wherein the sensor device (50) is connected to a control unit arranged to indicate a tissue paper filling state of the dispenser (2) based on the sensed at least one position of the blocking arrangement (16).

Description

WO 2014/098672 PCT/SE2012/051444 DISPENSER TECHNICAL FIELD The present invention relates to a dispenser for tissue paper. 5 BACKGROUND A dispenser for tissue paper may typically be arranged in a washroom. The tissue paper may be provided in rolls of tissue paper or in stacks of tissue paper. A dispenser arranged in a public or commercial facility which is highly frequented may be provided 10 with a large reserve of tissue paper. For instance, the tissue paper may be provided from two seats, or positions, inside the dispenser. US 6364245 discloses a dispenser for selectively dispensing first and second rolls of sheet material respectively wrapped around first and second cores. The dispenser 15 includes a housing defining a storage compartment for the first and second rolls and an opening, a first and second core support structures disposed in the housing for respectively supporting differently sized first and second cores and a divider slidably carried by the housing and covering a portion of the opening. The divider is movable between a first dispensing position, wherein a first portion of the opening is uncovered to 20 allow access to the first roll and a second portion of the opening is covered to prevent access to the second roll, and a second position, wherein the first portion of the opening is covered and the second portion the opening is uncovered to allow access to the second roll. The divider includes an adjustable blocking plate for preventing movement of the divider from the first dispensing position to the second dispensing portion until 25 substantially all the sheet material has been exhausted from the first roll. A dispenser for tissue paper has to be replenished more or less regularly. An indication of a tissue paper filling state of a dispenser may facilitate the work of service personnel responsible for replenishing the dispenser with tissue paper. 30 WO 2005/065509 discloses a system and method for measuring, monitoring and controlling washroom dispensers and products. An apparatus for the dispensing of 2 product is provided. The apparatus includes a dispenser sensor unit. The dispenser sensor unit is configured for detecting information about the product and for varying a dispensing parameter of the dispenser. A data communications unit in communication with the dispenser sensor unit is provided and is configured for receiving information from 5 the dispenser sensor unit. A washroom monitoring station in communication with the data communications unit may be present and may be configured for receiving information from the data communications unit. The dispenser sensor unit may be configured for receiving a communication so as to vary a dispensing parameter of the dispenser. 10 WO 2012/034590 SCA discloses a solution for detecting a level of a consumable tissue product in a tissue dispenser located in a washroom. This is provided in a number of aspects such as a tissue dispenser, a method, system, and a sensor unit utilizing two sensor elements each arranged to measure light reflected from a reflection field located on the tissue product itself, and arranged to measure absence of the tissue product. Data 15 from the sensor elements are wirelessly transmitted to a server for further handling, such as for instance notification to a janitor in charge of service of the washroom. A dispenser comprising two seats, or positions, from which tissue paper may be dispensed may be provided with a blocking arrangement. The blocking arrangement 20 blocks access to one of the two seats such that dispensing of tissue paper takes place from only one of the seats until that particular seat is empty. Only then the blocking arrangement may be manipulated to provide access to the other seat for dispensing tissue paper therefrom. 25 Any discussion of documents, devices, acts or knowledge in this specification is included to explain the context of the invention. It should not be taken as an admission that any of the material formed part of the prior art base or the common general knowledge in the relevant art on or before the priority date of the claims herein. 30 Comprises/comprising and grammatical variations thereof when used in this specification are to be taken to specify the presence of stated features, integers, steps or components or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, components or groups thereof.

3 SUMMARY It would be desirable to provide a dispenser for tissue paper with an alternative arrangement for assisting service personnel in replenishing the dispenser. 5 In accordance with the present invention, there is provided a dispenser for tissue paper comprising a housing. The housing comprises a first seat for a first roll or a first stack of tissue paper and a second seat for a second roll or a second stack of tissue paper. The housing is provided with a first dispensing position and a second dispensing position, from which first and second dispensing positions tissue paper is graspable for dispensing 10 thereof. The dispenser comprises a blocking arrangement for selectively blocking either the first dispensing position or the second dispensing position. The dispenser comprises a sensor device arranged to sense at least one position of the blocking arrangement. The sensor device is connected to a control unit arranged to indicate a tissue paper filling state of the dispenser based on the sensed at least one position of the blocking 15 arrangement. Since the sensed at least one position of the blocking arrangement is utilized by the control unit to indicate a tissue paper filling state of the dispenser, service personnel are able to utilize the tissue paper filling state as a basis for planning replenishing of the 20 dispenser with tissue paper. The dispenser may be adapted to be arranged in a washroom. The dispenser may be arranged to be attached to a structure such as a wall or a door. The housing may comprise one compartment, inside which the first and second seats are provided. 25 Alternatively the dispenser may comprise two compartments, one for each of the first and second seats. The term "seat" is herein to be interpreted as any structure or arrangement suitable for supporting a roll of tissue paper or a stack of tissue paper. An example of a seat for a roll of tissue paper is a peg, which fits into a core of the roll and about which the roll may pivot. An example of a seat for a stack of tissue paper is a frame provided 30 with a dispensing opening. The frame is sized such that the stack abuts against the frame around the dispensing opening. The term "dispensing position" is intended to define a portion of the housing from which a user is intended to dispense tissue paper. Accordingly, the blocking arrangement prevents dispensing of tissue paper from either the first dispensing position or the second dispensing position. For each dispensing 35 position there may be provided a separate dispensing opening. Alternatively, there may be provided one dispensing opening for both dispensing positions.

3a According to embodiments, the blocking arrangement may comprise a movable lid arranged to be positioned in a first blocking position and in a second blocking position, wherein in the first blocking position the movable lid prevents access to the first 5 dispensing position and permits access the second dispensing position, and wherein in the second blocking position the movable lid prevents access to the second dispensing 10 THE NEXT PAGE IS PAGE 4.

WO 2014/098672 PCT/SE2012/051444 4 position and provides access to the first dispensing position. The lid may be arranged to slide between the first and second blocking positions. According to embodiments, the blocking arrangement may prevent the movable lid from 5 being moved from the first blocking position to the second blocking position unless the second seat is substantially empty. In this manner it may be ensured that the movable lid is only movable to the second blocking position when the second seat is empty, i.e. all tissue paper in the second seat has been used. Thus, the second seat is emptied before access is provided to the first seat for dispensing tissue paper therefrom. Replenishing of 10 the dispenser may thus be performed of a completely empty second seat. According to embodiments, the blocking arrangement may prevent the movable lid from being moved from the second blocking position to the first blocking position unless the first seat is substantially empty. In this manner it may be ensured that the movable lid is 15 only movable to the first blocking position when the first seat is empty, i.e. all tissue paper in the first seat has been used. Thus, the first seat is emptied before access is provided to the second seat for dispensing tissue paper therefrom. Replenishing of the dispenser may thus be performed of a completely empty first seat. 20 According to embodiments, the blocking arrangement may comprise a lever mechanism adapted to bear against rolls or stacks of tissue paper arranged in the first and second seats. The lever mechanism may be arranged to engage and release the movable lid. Thus, a level of tissue paper in the first and/or second seats may affect the movable lid and its movability between the first and second blocking positions. 25 According to embodiments, the lever mechanism may comprise a first linkage arranged to bear against the first roll or stack of tissue paper and a second linkage arranged to bear against the second roll or stack of tissue paper. In this manner a level of tissue paper in the first seat and the second seat may be detected. 30 According to embodiments, the at least one position of the blocking arrangement sensed by the sensor device may relate to one position of the lever mechanism.

WO 2014/098672 PCT/SE2012/051444 5 According to embodiments, the at least one position of the blocking arrangement sensed by the sensor device may relate to one position of the movable lid. According to embodiments, the dispenser may comprise a sensing unit arranged to 5 acknowledge replenishing of the dispenser with tissue paper. In this manner a tissue paper filling state of the dispenser may be reset to a state representing filled first and second seats. The sensing unit may be connected to the control unit. According to embodiments, the sensor device may comprise an optical sensor device. 10 According to embodiments, the optical sensor device may comprise a light source and a photosensitive element. Several alternative operations of the optical sensor and the control unit are envisaged. Depending on how the optical sensor is arranged in relation to the blocking arrangement, either light sensed by the optical sensor indicates a filled 15 seat and absence of light indicates an empty seat, or light sensed by the optical sensor indicates an empty seat and absence of light indicates a filled seat. Alternatively, difference in light sensed by the optical sensor indicates a filled or an empty seat. A change in intensity of light from the light source received by the photosensitive element indicates that a seat has been emptied, either an increase in light intensity or a decrease 20 in light intensity. According to embodiments, the blocking arrangement may comprise a light reflecting surface arranged to reflect light from the light source towards the photosensitive element. In this manner reliability of the sensor device may be ensured by the light being 25 reflected from the light source towards the photosensitive element. According to embodiments, the sensor device and at least part of the blocking arrangement may be arranged in an enclosure separate from the first and second seats. In this manner the sensor device may be protected from damage, e.g. when the 30 dispenser is replenished. Moreover, if the sensor device is an optical sensor device, the sensor device is not accidentally affected by light nor related to the sensor. According to embodiments, the sensor device may be arranged to sense at least two positions of the blocking arrangement, and the control unit may be arranged to indicate a WO 2014/098672 PCT/SE2012/051444 6 tissue paper filling state of the dispenser based on the sensed at least two positions of the blocking arrangement. According to embodiments, the control unit may be arranged to indicate a first tissue 5 paper filling state indicating either an empty first seat or an empty second seat, and a second tissue paper filling state indicating empty first and second seats. According to embodiments, the control unit may be arranged to indicate a third tissue paper filling state indicating at least partially filled first and second seats. 10 The control unit may be arranged to indicate a fourth tissue paper filling state indicating filled first and second seats. According to embodiments, the control unit may be arranged separate from the 15 dispenser and the sensor device may be arranged to communicate with the control unit. For instance, the sensor device may communicate wirelessly with the control unit. According to embodiments, the control unit may be arranged in the dispenser. In this manner a tissue paper filling state of the dispenser may be indicated directly on the 20 dispenser, e.g. by one or more light sources indicating different tissue paper filling states. According to embodiments, the control unit may communicate with, or may form part of, a data collection system configured for communicating tissue paper filling states of the 25 dispenser to an operator. In this manner the operator may be informed of tissue paper filling states of the dispenser. The data collection system configured for communicating tissue paper filling states may for instance comprise a visual indication of a relevant tissue paper filling state of the dispenser. The data collection system may be provided on the dispenser itself or remote from the dispenser. In these embodiments the data 30 collection system need not necessarily have any data storage capacity. The data collection system may only have the possibility to indicate a current tissue paper filling state of the dispenser.

WO 2014/098672 PCT/SE2012/051444 7 According to embodiments, the data collection system may be configured to store data for communicating tissue paper filling states of the dispenser to an operator. In this manner the operator may be informed of tissue paper filling states of the dispenser in a location remote from the dispenser, e.g. via message from the data collection system to 5 a handheld device used by the operator. The operator may for instance upon demand retrieve the tissue paper filling state of the dispenser. The data collection system configured to store data may for instance be a data server. Further features of, and advantages with, the present invention will become apparent 10 when studying the appended claims and the following detailed description. Those skilled in the art will realize that different features of the present invention may be combined to create embodiments other than those described in the following, without departing from the scope of the present invention, as defined by the appended claims. 15 BRIEF DESCRIPTION OF THE DRAWINGS The various aspects of the invention, including its particular features and advantages, will be readily understood from the following detailed description and the accompanying drawings, in which: 20 Fig. 1 illustrates a dispenser for tissue paper according to embodiments, Fig. 2 illustrates schematically a sensor device and a portion of the dispenser illustrated in Fig. 1, and Figs. 3 and 4 each illustrates a dispenser for tissue paper according to different embodiments. 25 DETAILED DESCRIPTION The present invention will now be described more fully with reference to the accompanying drawings, in which example embodiments are shown. However, this invention should not be construed as limited to the embodiments set forth herein. 30 Disclosed features of example embodiments may be combined as readily understood by one of ordinary skill in the art to which this invention belongs. Like numbers refer to like elements throughout. Well-known functions or constructions will not necessarily be described in detail for brevity and/or clarity.

WO 2014/098672 PCT/SE2012/051444 8 Fig. I illustrates a dispenser 2 for tissue paper according to embodiments. The dispenser 2 comprises a housing 4. The housing 4 comprises a first seat 6 for a first roll 8 of tissue paper and a second seat 10 for a second roll 11 of tissue paper. The housing 4 is provided with a first dispensing position 12 and a second dispensing position 14. A 5 user may grasp tissue paper from the first and second dispensing positions 12, 14 for dispensing tissue paper. The dispenser 2 comprises a blocking arrangement 16 for selectively blocking either the first dispensing position 12 or the second dispensing position 14. The blocking 10 arrangement 16 comprises a movable lid 18 arranged to be positioned in a first blocking position and in a second blocking position. In the first blocking position the movable lid 18 prevents access to the first dispensing position 12 and permits access the second dispensing position 14. In the second blocking position the movable lid 18 prevents access to the second dispensing position 14 and provides access to the first dispensing 15 position 12. In Fig. 1 the movable lid 18 is illustrated in the first blocking position. The movable lid 18 is slidably attached to the housing 4 for sliding between the first and second blocking positions. The blocking arrangement 16 is arranged to prevent the movable lid 18 from being moved from the first blocking position to the second blocking position unless the second seat 11 is substantially empty. That is, when substantially all 20 tissue paper has been dispensed from the second roll 11 of tissue paper the movable lid 18 may be moved to the second blocking position. Conversely, should the movable lid 18 be in the second blocking position then the blocking arrangement 16 prevents the movable lid 18 from being moved from the second blocking position to the first blocking position unless the first seat is substantially empty. 25 The blocking arrangement 16 comprises a lever mechanism 20 adapted to bear against the first and second rolls 8, 11 of tissue paper. The lever mechanism 20 of the blocking arrangement 16 is arranged to engage and release the movable lid 18. Thus, when engaged, the movable lid 18 is prevented from being moved from the first blocking 30 position to the second blocking position, or vice versa. Conversely, when released, the movable lid 18 may be moved from the first blocking position to the second blocking position, or vice versa.

WO 2014/098672 PCT/SE2012/051444 9 The lever mechanism 20 comprises a first linkage 22 arranged to bear against the first roll 8 and a second linkage 24 arranged to bear against the second roll 11. The first and second linkages 22, 24 are identical. In the following the function of the first and second linkages will be discussed, primarily with reference to the second linkage 24. The second 5 linkage 24 comprises a first arm 26 arranged to bear against the second roll 11 of tissue paper. The first arm 26 is pivotably and slidably connected to the housing 4 at a pivot point 27. The second linkage 24 further comprises a second arm 28. The second arm 28 is connected to the first arm 26 at a first end portion 30 of the first arm 26 and is arranged to engage with the movable lid 18 at a second end portion 32 of the second 10 arm 28. The second end portion 28 engages with the movable lid 18 by the second arm 28 being immovable in a direction along the movable lid 18 and its sliding direction 33. Thus, a straight edge 35 of the second end 32 abutting against a straight edged recess 37 of the movable lid 18 prevents the movable lid 18 from being moved to the second blocking position. 15 The second arm 28 is slidably connected to the housing 4. The second arm 28 is slidable along a longitudinal direction of the second arm 28, substantially perpendicularly to the sliding direction 33 of the movable lid 18. The connection between the second arm 28 and the first arm 26 at the first end portion 30 is a sliding connection. For instance, 20 the first end portion 30 may be provided with a pin 34 and the first arm 26 may be provided with a slot 36 such that the pin 34, arranged in the slot 36, may slide along the slot 36. As tissue paper is dispensed from the second roll 11, the first arm 26 bearing against the 25 second roll 11 is displaced by the diameter of the second roll 11 decreasing. During the displacing, the first arm 26 pivots and slides in relation to the housing 4 at the pivot point 27. As the first arm 26 is displaced in this manner, the first arm 26 slides with its slot 36 along the pin 34 from a first slot end 38 to a second slot end 40. The second arm 28 thus, remains immovable until the pin 34 reaches the second slot end 40. The length of 30 the slot 36 is adapted to the diameter of the second roll 11. Thus, when substantially all tissue paper has been dispensed from the second roll 11, the second slot end 40 reaches the pin 34. Upon a further decrease of the diameter of the second roll 11, the first arm 26 engages with the pin 34 in the slot 36 and slides the second arm 28 away from the movable lid 18. The movable lid 18 is thus released from the engagement with WO 2014/098672 PCT/SE2012/051444 10 the second arm 28 and may be moved to the second blocking position to provide access to the first dispensing position 12. Since in the illustrated example a first roll 8 of tissue paper is provided in the first seat 6, 5 a corresponding second arm 28' of the first linkage 22 is in a position to engage with the movable lid 18. However, the second arms 28, 28' are each provided with a slanted edge 42, 42' opposite to the straight edge 35, 35'. Thus, as the movable lid 18 being moved to the second blocking position pushes against the slanted edge 42', the second arm 28' slides away from the lid 18 in a direct substantially perpendicularly to the sliding 10 direct 33 of the lid 18. When the movable lid 18 has reached the second blocking position, the straight edge 35' of the second arm 28' of the first linkage 22 engages with a straight edged recess 37' at an opposite end of the movable lid 18. The dispenser 2 comprises a sensor device 50 arranged to sense at least one position 15 of the blocking arrangement 16. The sensor device 50 is connected to a control unit (not shown) arranged to indicate a tissue paper filling state of the dispenser 2 based on the sensed at least one position of the blocking arrangement 16. Fig. 2 illustrates schematically the sensor device 50 and a portion of the dispenser 2 20 illustrated in Fig. 1. The movable lid 18 is illustrated in the second blocking position in Fig. 2. The sensor device 50 is arranged to sense at least one position of the blocking arrangement 16. In these embodiments, the at least one position of the blocking arrangement 16 sensed by the sensor device 50 relates to one position of the lever mechanism 20. The sensor device 50 is arranged in a vicinity of the first and second 25 linkages 22, 24 more particularly in a vicinity of the second arms 28, 28'of the two linkages 22, 24. The sensor device 50 and the second arms 28, 28' are arranged in an enclosure 52 separate from the first and second seats 6, 10 of the first and second rolls 8, 11 of tissue paper. The enclosure 52 is attached to the housing 4 of the dispenser 2. In these embodiments the sensor device 50 is separate from the first and second seats 30 6, 10 in the sense that the enclosure 52 delimits the sensor device 50 from the housing 4 of the dispenser 2. The sensor device 50 comprises an optical sensor device. The optical sensor device comprises a light source 54 and a photosensitive element 56. The second arm 28 of the WO 2014/098672 PCT/SE2012/051444 11 second linkage 24 of the blocking arrangement 16 comprises a light reflecting surface 58 arranged to reflect light from the light source 54 towards the photosensitive element 56. The light reflecting surface 58 may be constituted by any kind of surface having reflective properties, at least to some degree. 5 When the second arm 28 of the second linkage 24 is in a position in which the second arm 28 may engage with the movable lid 18 in the first blocking position, the light from the light source 56 is reflected by light reflecting surface 58 towards the photosensitive element 56. This is the situation illustrated in both Figs. 1 and 2, i.e. when there is tissue 10 paper on the second roll 11 in the second seat 10. The sensor device 50 thus, senses at least one position of the blocking arrangement 16. The sensor device 50 is connected to a control unit 60. The control unit 60 is arranged separate from the dispenser 2. The sensor device 50 is arranged to communicate with 15 the control unit 60. For instance, the sensor device 50 may communicate wirelessly with the control unit 60. In these embodiments the control unit 60 is provided in a data server 62. The data server 62 forms an example of a data collection system configured to store data. The data server 62 may e.g. be arranged for communicating tissue paper filling states of the dispenser to an operator. The control unit 60 may be a dedicated control 20 unit provided separately in the server, e.g. on a PCI card inserted in the data server 62. Alternatively, the control unit 60 may be implemented as a computer program executed by a processor of the data server 62. However, the control unit 60 may alternatively be provided in a separate device, which separate device in turn may communicate with the data server 62. 25 In any event, the control unit 60 is arranged to indicate a tissue paper filling state of the dispenser 2. The tissue paper filling state is based on the sensed at least one position of the blocking arrangement 16. Accordingly, in the dispenser illustrated in Figs. I and 2 the tissue paper filling state of the dispenser 2 may e.g. be that the second seat 10 of 30 the dispenser 2 is not empty. As mentioned above, when all tissue paper of the second roll 11 in the second seat 10 has been dispensed, the second arm 28 of the second linkage 24 moves away from the movable lid 18, i.e. upwardly in Figs. 1 and 2. The light reflecting surface 58 is thus WO 2014/098672 PCT/SE2012/051444 12 moved away from the sensor device 50. No light, or light at a lower intensity, from the light source 54 is now received by the photosensitive element 56. The control unit 60 now indicates a different tissue paper filling state of the dispenser 2, e.g. that the second seat 10 of the dispenser 2 is empty, or that one of the first and second seats 6, 10 is 5 empty. Thus, in these embodiments the sensor device 50 is arranged to sense at least two positions of the blocking arrangement 16, and the control unit 50 is arranged to indicate a tissue paper filling state of the dispenser 2 based on the sensed at least two positions of the blocking arrangement 16. 10 The sensor arrangement 50 may comprise a further light source and a further photosensitive element. The second arm 28 of the first linkage 22 may also be provided with a light reflecting surface. Thus, a tissue paper filling state of the dispenser 2 may also indicate whether the first roll 8 in the first seat 6 comprises tissue paper or is empty. Thus, also in this sense the sensor device 50 of these embodiments is arranged to 15 sense at least two positions of the blocking arrangement 16, and the control unit 50 is arranged to indicate a tissue paper filling state of the dispenser 2 based on the sensed at least two positions of the blocking arrangement 16. Fig. 3 illustrates a dispenser 2 for tissue paper according to embodiments. The 20 dispenser 2 comprises a housing 4. The housing 4 comprises a first seat 6 for a first stack of tissue paper and a second seat 10 for a second stack 70 of tissue paper. The first seat 6 is empty, i.e. the first stack of tissue paper has been dispensed. The housing 4 is provided with a first dispensing position 12 and a second dispensing position 14. A user may grasp tissue paper from the first and second dispensing positions 12, 14 for 25 dispensing tissue paper. Other than being adapted for dispensing of tissue paper from a stack of tissue paper, the dispenser 2 of these embodiments works in the same manner as the dispenser 2 of the Fig. I and 2 embodiments. To avoid repetition, elements have been omitted in Fig. 3. 30 The lever mechanism 20 of the blocking arrangement 16 is adapted to bear against the first and second stacks of tissue paper. The first linkage 22 of the lever mechanism 20 is illustrated in Fig. 3 in a position where the first arm 26' has followed the now empty first stack. The second arm 28' has thus been slid upwardly in Fig. 3 and permitted the movable lid 18 to be moved from the second blocking position to the first blocking WO 2014/098672 PCT/SE2012/051444 13 position. Dispensing of the tissue paper may now be performed from the second stack 70 at the second dispensing position 14. For a further description of the dispenser 2 reference is made to the description relating 5 to Figs. I and 2. Fig. 4 illustrates a dispenser 2 for tissue paper according to embodiments. The dispenser 2 comprises a housing 4. The housing 4 comprises a first seat 6 for a first roll 8 of tissue paper and a second seat 10 for a second roll 11 of tissue paper. The housing 10 4 is provided with a first dispensing position 12 and a second dispensing position 14. A user may grasp tissue paper from the first and second dispensing positions 12, 14 for dispensing tissue paper. The dispenser 2 comprises a blocking arrangement 16 for selectively blocking either the 15 first dispensing position 12 or the second dispensing position 14. The blocking arrangement 16 comprises a movable lid 18 arranged to be positioned in a first blocking position and in a second blocking position. In the first blocking position the movable lid 18 prevents access to the first dispensing position 12 and permits access the second dispensing position 14. In the second blocking position the movable lid 18 prevents 20 access to the second dispensing position 14 and provides access to the first dispensing position 12. In Fig. 4 the movable lid 18 is illustrated in the second blocking position. The movable lid 18 is slidably attached to the housing 4 for sliding between the first and second blocking positions. The blocking arrangement 16 is arranged to prevent the movable lid 18 from being moved from the second blocking position to the first blocking 25 position unless the first seat 6 is substantially empty. That is, when substantially all tissue paper has been dispensed from the first roll 8 of tissue paper the movable lid 18 may be moved to the first blocking position. Conversely, should the movable lid 18 be in the first blocking position then the blocking arrangement 16 prevents the movable lid 18 from being moved from the first blocking position to the second blocking position unless 30 the second seat 10 is substantially empty. The blocking arrangement 16 comprises a stud 80 adapted to bear against the first roll 8 of tissue paper or the second roll 11 of tissue paper. The stud 80 extends from the movable lid 18 in a direction perpendicularly to a sliding direction 33 of the movable lid WO 2014/098672 PCT/SE2012/051444 14 18. The stud 80 has a length such that it will bear against the tissue paper of the first roll 8. When the first roll 8 of tissue paper has been dispensed, the stud 80 has a length such that it will pass the first seat 6. Thus, the movable lid 18 is prevented from being moved from the second blocking position to the first blocking position until the first roll 8 5 of tissue paper is substantially empty. The stud 80 is attached to a first socket 82 provided at one end portion of the movable lid 18. The stud 80 may be removed from the first socket 82 and may be place in a second socket 83 provided at an opposite end portion of the movable lid 18. An operator 10 may do so when the first seat 6 has been replenished with a roll of tissue paper while dispensing of tissue paper takes place from the second roll 11. Thus, the movable lid 18 will be prevented from being moved from the first blocking position until the second seat 10 is empty. Accordingly, tissue paper from one roll at a time will be dispensed from the dispenser 2. 15 The dispenser 2 comprises a sensor device 50 arranged to sense at least one position of the blocking arrangement 16. The sensor device 50 is connected to a control unit 60 arranged to indicate a tissue paper filling state of the dispenser 2 based on the sensed at least one position of the blocking arrangement 16. The control unit 60 is arranged in 20 the dispenser 2. The sensor device 50 is arranged to sense at least one position of the blocking arrangement 16. In these embodiments, the at least one position of the blocking arrangement 16 sensed by the sensor device 50 relates to one position of the movable 25 lid 18. The sensor device 50 comprises a Hall Effect sensor 85 attached to the housing 4 and a first magnet 84 and a second magnet 86 attached to opposite end portions of the movable lid 18. The Hall Effect sensor 85 is arranged to sense the first or the second magnet 84, 86. Sensing of the first or the second magnet 84, 86 allows the control unit 60 to indicate a paper tissue filling state of the dispenser 2 based on at least one 30 position of the movable lid 18. The sensor device 50 is connected to the control unit 60. The sensor device 50 is arranged to communicate with the control unit 60. The control unit 60 is arranged to indicate a tissue paper filling state of the dispenser 2. The control unit 60 is connected to WO 2014/098672 PCT/SE2012/051444 15 two light sources such as two LEDs 87 for indicating a tissue paper filling state of the dispenser 2. The control unit 60 may thus, be referred to as forming part of a data collection system configured for communicating tissue paper filling states of the dispenser 2 to an operator. A sensing unit 88 is positioned in the housing 4 and 5 arranged to acknowledge replenishing of the dispenser 2 with tissue paper. The sensing unit 88 is connected to the control unit 60. For instance, the sensing unit 88 may sense the opening and/or closing of a replenishing lid (not shown) of the dispenser 2. It is assumed that the dispenser 2 is replenished when the replenishing lid is opened. Thus, the control unit 60 may reset the tissue paper filling state of the dispenser 2 based on 10 input from the sensing unit 88. Purely provided as an example of indication of tissue paper filling states of the dispenser 2, the following example is provided: - Tissue paper is dispensed from the first roll 8 by users until the first seat 6 is 15 empty. - A user desiring to dispense tissue paper moves the movable lid 18 from the illustrated second blocking position to the first blocking position in order to dispense tissue paper form the second roll 11. - Thus, the sensor device 50 senses the first magnet 84 being moved away from 20 the Hall Effect sensor 85 and the second magnet 86 is moved to the Hall Effect sensor 85, which in turn is sensed by the Hall effect sensor 85. - The control unit 60 thus lights one of the LEDs 87 to indicate that one of the seats 6, 10 is empty. - When all tissue paper has been dispensed from the second roll 11, a user will 25 move the movable lid 18 to the second blocking position in an attempt to find tissue paper at the first dispensing position 12. - Again, the sensor device 50 senses a magnet being moved away from the Hall Effect sensor 85 and a magnet being moved to the Hall Effect sensor 85. - In response thereto the control unit 60 lights also the other LED 87 to indicate 30 that both seats 6, 10 are empty. An operator responsible for replenishing the dispenser 2 will see one or two lit LEDs 87 and in response thereto may replenish the dispenser 2, in one or both seats 6, 10, respectively. Upon opening the dispenser 2, the sensing unit 88 resets the control unit WO 2014/098672 PCT/SE2012/051444 16 60, which in turn shuts off the one or two LEDs 87. The control unit 60 may communicate with a remotely located data server 62. The data server 62 is an example of a data collection system configured to store data. 5 The following may relate to all embodiments disclosed herein: The control unit 60 may be arranged to indicate a first tissue paper filling state indicating either an empty first seat 6 or an empty second seat 10, and a second tissue paper filling state indicating empty first and second seats 6, 10. Thus, in the first tissue paper filling state it is recommended to replenish the dispenser 2 with tissue paper. In the second 10 tissue paper filling state it is required that the dispenser 2 is replenished with tissue paper. The control unit 60 may be arranged to indicate a third tissue paper filling state indicating at least partially filled first and second seats 6, 10. Thus, it is verified that no immediate replenishing of the dispenser 2 is required. 15 The data server 62 may be arranged for communicating tissue paper filling states of the dispenser 2 to an operator. The tissue paper filling states may be presented on a display screen of the data server 62. In addition thereto, or alternatively, the data server 62 may present the tissue paper filling states of the dispenser 2 in a location remote from the data server 62, e.g. via messages from the data server 62 to a handheld device used by 20 the operator. The data server 62 has been described to be a remotely located data server 62, which encompasses a data server 62 located outside a facility, such as a restroom, wherein the dispenser 2 is located, as well as a data server 62 located in a different building than 25 wherein the dispenser 2 is located. Alternatively, the data server 62 may be locally arranged, i.e. in the facility, such as a restroom, wherein the dispenser 2 is located. The data server 2 may thus form a locally arranged information system for providing an operator with paper tissue filling states of the dispenser 2. 30 Example embodiments described above may be combined as understood by a person skilled in the art. For example, the Fig. 4 embodiments may be provided with an optical sensor instead of the Hall Effect sensor. Although the invention has been described with reference to example embodiments, many different alterations, modifications and the like will become apparent for those skilled in the art. The light reflecting surface 58 may WO 2014/098672 PCT/SE2012/051444 17 alternatively be positioned to reflect light onto the photosensitive element 56 when a seat is empty. The second arms 28, 28' may be shaped such that light from the light source 54 does not hit the second arms 28, 28' in one position thereof, i.e. in which one position light will not be reflected from the light reflecting surface 58 to the photosensitive element 5 56. Parts of the lever mechanism 20 may be provided on a rear side of the dispenser 2, e.g. the second arms 28, 28'. Accordingly, also the enclosure 52 and the sensor device 50 may be provided on the rear side of the dispenser 2. Therefore, it is to be understood that the foregoing is illustrative of various example embodiments and that the invention is defined only the appended claims. 10

Claims

1. A dispenser for tissue paper comprising a housing, the housing comprising a first seat for a first roll or a first stack of tissue paper and a second seat for a second roll or a second stack of tissue paper, wherein the housing is provided with a first dispensing position and a second dispensing position, from which first and second dispensing positions tissue paper is graspable for dispensing thereof, and wherein the dispenser comprises a blocking arrangement for selectively blocking either the first dispensing position or the second dispensing position, wherein the dispenser comprises a sensor device arranged to sense at least one position of the blocking arrangement, and wherein the sensor device is connected to a control unit arranged to indicate a tissue paper filling state of the dispenser based on the sensed at least one position of the blocking arrangement.

2. The dispenser according to claim 1, wherein the blocking arrangement comprises a movable lid arranged to be positioned in a first blocking position and in a second blocking position, wherein in the first blocking position the movable lid prevents access to the first dispensing position and permits access the second dispensing position, and wherein in the second blocking position the movable lid prevents access to the second dispensing position and provides access to the first dispensing position.

3. The dispenser according to claim 2, wherein the blocking arrangement prevents the movable lid from being moved from the first blocking position to the second blocking position unless the second seat is substantially empty.

4. The dispenser according to either claim 2 or 3, wherein the blocking arrangement prevents the movable lid from being moved from the second blocking position to the first blocking position unless the first seat is substantially empty.

5. The dispenser according to any one of the preceding claims, wherein the blocking arrangement comprises a lever mechanism adapted to bear against rolls or stacks of tissue paper arranged in the first and second seats, and wherein the lever mechanism is arranged to engage and release the movable lid. 19

6. The dispenser according to claim 5, wherein the lever mechanism comprises a first linkage arranged to bear against the first roll or stack of tissue paper and a second linkage arranged to bear against the second roll or stack of tissue paper.

7. The dispenser according to either claim 5 or 6, wherein the at least one position of the blocking arrangement sensed by the sensor device relates to one position of the lever mechanism.

8. The dispenser according to any one of claims 1 - 6, wherein the at least one position of the blocking arrangement sensed by the sensor device relates to one position of the movable lid.

9. The dispenser according to any one of the preceding claims, wherein the dispenser comprises a sensing unit arranged to acknowledge replenishing of the dispenser with tissue paper.

10. The dispenser according to any one of the preceding claims, wherein the sensor device comprises an optical sensor device.

11. The dispenser according to claim 10, wherein the optical sensor device comprises a light source and a photosensitive element.

12. The dispenser according to claim 11, wherein the blocking arrangement comprises a light reflecting surface arranged to reflect light from the light source towards the photosensitive element.

13. The dispenser according to any one of the preceding claims, wherein the sensor device and at least part of the blocking arrangement are arranged in an enclosure separate from the first and second seats.

14. The dispenser according to claim any one of the preceding claims, wherein the sensor device is arranged to sense at least two positions of the blocking arrangement, and wherein the control unit is arranged to indicate a tissue paper filling state of the dispenser based on the sensed at least two positions of the blocking arrangement.

15. The dispenser according to claim 14, wherein the control unit is arranged to indicate a first tissue paper filling state indicating either an empty first seat or an empty 20 second seat, and a second tissue paper filling state indicating empty first and second seats.

16. The dispenser according to claim 15, wherein the control unit is arranged to indicate a third tissue paper filling state indicating at least partially filled first and second seats.

17. The dispenser according to claim 15 or 16, wherein the control unit is arranged to indicate a fourth tissue paper filling state indicating filled first and second seats.

18. The dispenser according to any one of the preceding claims, wherein the control unit is arranged separate from the dispenser and the sensor device is arranged to communicate with the control unit.

19. The dispenser according to any one of claims 1 - 17, wherein the control unit is arranged in the dispenser.

20. The dispenser according to any one of the preceding claims, wherein the control unit communicates with, or forms part of, a data collection system configured for communicating tissue paper filling states of the dispenser to an operator.

21. The dispenser according to claim 20, wherein the data collection system is configured to store data for communicating tissue paper filling states of the dispenser to an operator. SCA HYGIENE PRODUCTS AB WATERMARK PATENT AND TRADE MARKS ATTORNEYS P40489AU00