Patent Publication Number: US-11382467-B2

Title: Spindle assembly for a web material dispenser, web material roll dispensing assembly and method for inserting a web material roll in a dispenser

Description:
PRIOR APPLICATION 
     The present application claims the benefit of the filing date of U.S. provisional patent application No. 62/767,082, filed on Nov. 14, 2018, and entitled “SPINDLE ASSEMBLY FOR A DISPENSER OF ROLLED WEB MATERIAL AND ROLLED WEB MATERIAL DISPENSING ASSEMBLY”, the disclosure of which being hereby incorporated by reference in its entirety. 
    
    
     TECHNICAL FIELD 
     The present disclosure generally relates to rolls of web material and to dispensers of rolled web material. More particularly, the disclosure relates to a spindle assembly to support a roll of web material in a dispenser; to a rolled web material dispensing assembly and to a method for inserting a roll of web material in a dispenser of rolled web material. 
     BACKGROUND 
     Several types of paper roll dispensers exist in the prior art that are used to gradually provide a user of the paper roll dispenser with different types of paper. The most common of these types of paper roll dispensers, dispenses paper items such as paper towels or toilet paper. Some of these paper rolls include a bushing provided in a cavity thereof, to interact with the mandrel of the dispenser. The bushing provided in the cavity of the roll can facilitate and improve roll replacement in the dispensers. However, the bushing might make the paper roll unusable in certain types of paper roll dispensers. 
     It could be advantageous to allow the use of paper rolls which include a bushing, in paper roll dispensers that are not originally configured to be used with such paper rolls. 
     BRIEF SUMMARY 
     The present invention aims to address at least some of the above-mentioned needs and provide a spindle assembly for supporting a roll of web material in a dispenser, a roll dispensing assembly and a method for supporting a roll of web material in a dispenser. 
     According to a general aspect, there is provided a spindle assembly for supporting a web material roll in a web material dispenser having first and second opposed sides, the web material roll having first and second extremities and defining a central cavity provided with a bushing toward the first extremity. The spindle assembly comprises a bushing-engaging member comprises a first dispenser mounting portion mountable to the first side of the web material dispenser, and a bushing-engaging portion sized and configured to fit at least partially in the bushing; and a spindle connection member comprising: a second dispenser mounting portion mountable to the second side of the web material dispenser, and a connecting portion mountable to at least one of the second extremity of the web material roll and the bushing-engaging member; thereby allowing use of the web material roll with the bushing in the web material dispenser. 
     According to another general aspect, there is provided a spindle assembly for supporting a web material roll in a web material dispenser having first and second opposed sides, the web material roll having first and second extremities and defining a central cavity provided with a bushing toward the first extremity, the spindle assembly comprising: a bushing-engaging member comprising: a first dispenser mounting portion removably mountable to the first side of the web material dispenser, and a bushing-engaging portion extending from the first dispenser mounting portion and being at least partially engageable in the bushing of the web material roll; and a spindle connection member comprising: a second dispenser mounting portion removably mountable to the second side of the web material dispenser; and a connection portion at least partially engageable into the cavity of the web material roll toward the second extremity and connectable to the bushing-engaging portion to configure the spindle connection member and the bushing-engaging member in an assembled configuration thereby allowing use of the web material roll with the bushing in the web material dispenser. 
     According to another general aspect, there is provided a roll dispensing assembly comprising a web material roll having first and second extremities and defining a central cavity provided with a bushing toward the first extremity; and a spindle assembly according to the present disclosure, the bushing-engaging member and the spindle connection member being mountable respectively to the first and second extremities of the web material roll. 
     According to another general aspect, there is provided a method for inserting a web material roll in a web material dispenser, the web material dispenser having first and second sides, the web material roll having first and second extremities and defining a central cavity provided with a bushing toward the first extremity, the method comprising: providing a spindle assembly comprising: a bushing-engaging member comprising a first dispenser mounting portion and a bushing-engaging portion; and a spindle connection member comprising a second dispenser mounting portion and a connecting portion; engaging the bushing-engaging portion in the bushing of the web material roll; and introducing the spindle connection member in the central cavity via the second extremity. 
     According to another general aspect, there is provided a spindle assembly for supporting a roll of web material in a dispenser; the dispenser has first and second sides, and the roll of web material has first and second extremities and a central cavity provided with a bushing, toward the first extremity. The spindle assembly comprises a first spindle element having a first dispenser mounting portion and a bushing mounting portion. The first dispenser mounting portion is removably mountable to the first side of the dispenser, and the bushing mounting portion is sized and configured to fit in the bushing. The spindle assembly further comprises a second spindle element having a second dispenser mounting portion removably mountable to the second side of the dispenser, and a connecting portion mountable to the second extremity of the roll and/or to the first spindle element, thereby allowing use of the roll of web material with the bushing in the dispenser. 
     According to another general aspect, there is provided a spindle assembly for supporting a roll of web material in a dispenser having first and second sides; the roll of web material has first and second extremities and a central cavity provided with a bushing, toward the first extremity. The spindle assembly comprises a first spindle element comprising a first dispenser mounting portion removably mountable to the first side of the dispenser, and a bushing mounting portion extending from the first dispenser mounting portion and being engageable in the bushing of the web material roll. The spindle assembly further comprises a second spindle element at least partially engageable in the cavity of the roll toward the second extremity and comprising a second dispenser mounting portion removably mountable to the second side of the dispenser. One of the first and second spindle elements comprises an assembling rod and the other one of the first and second spindle elements comprises an assembling sleeve defining an assembling cavity to receive the assembling rod for the first and second spindle elements to be assembled together thereby allowing use of the roll of web material with a bushing in the dispenser. 
     According to another general aspect, there is provided a roll dispensing assembly comprising a roll of web material having first and second extremities and a central cavity provided with a bushing, toward the first extremity, and a spindle assembly according to the present disclosure. The first and second spindle elements are mountable respectively to the first and second extremities. 
     According to another general aspect, there is provided a method for inserting a roll of web material in a dispenser, the dispenser having first and second sides, the roll of web material having first and second extremities and a central cavity provided with a bushing, toward the first extremity. The method comprises providing a spindle assembly according to the present disclosure, engaging the first spindle element in the bushing of the roll of web material, introducing the second spindle element in the central cavity via the second extremity and mounting the first and second dispenser mounting portions respectively to the first and second sides of the dispenser. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIGS. 1 and 2  are right and left perspective views of a spindle assembly in accordance with an embodiment, the spindle assembly shown with first and second spindle elements being configured in a disassembled configuration; 
         FIGS. 3 and 4  are right and left perspective views of the spindle assembly of  FIGS. 1 and 2 , the first and second spindle elements being configured in an assembled configuration; 
         FIGS. 5 and 6  are right and left perspective exploded views of the first and second spindle elements of the spindle assembly of  FIGS. 1 and 2 ; 
         FIG. 7  is a cross-section view of the second spindle element of the spindle assembly of  FIGS. 1 and 2 ; 
         FIG. 8  is a cross-section view, in perspective, of a roll dispensing assembly comprising a roll of web material defining a central cavity provided with a bushing, the first spindle element of the spindle assembly of  FIGS. 1 and 2  being inserted in the bushing; 
         FIGS. 9 and 10  are enlarged cross-section views, in perspective, of the first spindle element and the bushing of the roll dispensing assembly of  FIG. 8 , without the roll of web material; 
         FIG. 11  is a cross-section view, in perspective of the roll dispensing assembly of  FIG. 8 , the first and second spindle elements of the spindle assembly of  FIGS. 1 and 2  being engaged in the central cavity and connected to each other; 
         FIG. 12  is a cross-section view of the roll dispensing assembly of  FIG. 11 , the first and second spindle elements being mounted to first and second sides of a web material dispenser; 
         FIG. 13  is a left perspective view of a spindle assembly in accordance with another embodiment, the first and second spindle elements being configured in the assembled configuration; 
         FIG. 14  is a cross-section view, in perspective, of the first and second spindle elements of  FIG. 13 ; 
         FIGS. 15 and 16  are left and right perspective views of the spindle assembly of  FIG. 13 , the first and second spindle elements being configured in the disassembled configuration; 
         FIGS. 17 and 18  are right and left perspective exploded views of the first and second spindle elements of the spindle assembly of  FIG. 13 ; 
         FIG. 19  is a cross-section view of the roll dispensing assembly of  FIG. 13 , the first and second spindle elements being mounted to the first and second sides of the web material dispenser; 
         FIG. 20  is a side perspective view of the roll of web material of  FIG. 8 , with no spindle assembly inserted therein; 
         FIG. 21  is a front perspective view of the web material dispenser of  FIG. 12 , with a conventional mandrel mounted to the first and second sides of the web material dispenser; 
         FIG. 22  is a front perspective view of the web material dispenser of  FIG. 21  with the conventional mandrel removed, so as to allow use of a roll dispensing assembly in accordance with an embodiment; and 
         FIG. 23  is a front perspective view of the web material dispenser of  FIG. 22 , with two roll dispensing assemblies being inserted therein, the web material rolls being provided with bushings, such as shown in  FIG. 20 . 
     
    
    
     DETAILED DESCRIPTION 
     In the following description, the same numerical references refer to similar elements. Furthermore, for the sake of simplicity and clarity, namely so as to not unduly burden the figures with several references numbers, not all figures contain references to all the components and features, and references to some components and features may be found in only one figure, and components and features of the present disclosure which are illustrated in other figures can be easily inferred therefrom. The embodiments, geometrical configurations, materials mentioned and/or dimensions shown in the figures are optional and are given for exemplification purposes only. 
     Moreover, it will be appreciated that positional descriptions such as “above”, “below”, “forward”, “rearward” “left”, “right” and the like should, unless otherwise indicated, be taken in the context of the figures and correspond to the position and orientation of the web material roll and corresponding parts when being mounted to a web material roll dispenser. The terms “inner”, “interior” and “outer” should be understood as being relative to the central cavity of the web material roll. Positional descriptions should not be considered limiting. 
     To provide a more concise description, some of the quantitative expressions given herein may be qualified with the term “about”. It is understood that whether the term “about” is used explicitly or not, every quantity given herein is meant to refer to an actual given value, and it is also meant to refer to the approximation to such given value that would reasonably be inferred based on the ordinary skill in the art, including approximations due to the experimental and/or measurement conditions for such given value. 
     In the following description, the term “about” means within an acceptable error range for the particular value as determined by one of ordinary skill in the art, which will depend in part on how the value is measured or determined, i.e. the limitations of the measurement system. It is commonly accepted that a 10% precision measure is acceptable and encompasses the term “about”. 
     In the present description, an embodiment is an example or implementation of the invention. The various appearances of “one embodiment,” “an embodiment” or “some embodiments” do not necessarily all refer to the same embodiments. Although various features of the invention may be described in the context of a single embodiment, the features may also be provided separately or in any suitable combination. Conversely, although the invention may be described herein in the context of separate embodiments for clarity, the invention may also be implemented in a single embodiment. 
     Reference in the specification to “some embodiments”, “an embodiment”, “one embodiment” or “other embodiments” means that a particular feature, structure, or characteristic described in connection with the embodiments is included in at least some embodiments, but not necessarily all embodiments, of the inventions. 
     It is to be understood that the phraseology and terminology employed herein is not to be construed as limiting and is for descriptive purposes only. The principles and uses of the teachings of the present invention may be better understood with reference to the accompanying description, figures and examples. It is to be understood that the details set forth herein do not construe a limitation to an application of the invention. Furthermore, it is to be understood that the invention can be carried out or practiced in various ways and that the invention can be implemented in embodiments other than the ones outlined in the description above. 
     It is to be understood that the terms “including”, “comprising”, and grammatical variants thereof do not preclude the addition of one or more components, features, steps, or integers or groups thereof and that the terms are to be construed as specifying components, features, steps or integers. 
     If the specification or claims refer to “an additional” element, that does not preclude there being more than one of the additional element. It is to be understood that where the claims or specification refer to “a” or “an” element, such reference is not to be construed as limited to only one of that element. It is to be understood that where the specification states that a component, feature, structure, or characteristic “may”, “might”, “can” or “could” be included, that particular component, feature, structure, or characteristic is not required to be included. 
     Methods of the present invention may be implemented by performing or completing manually, automatically, or a combination thereof, selected steps or tasks. The term “method” may refer to manners, means, techniques and procedures for accomplishing a given task including, but not limited to, those manners, means, techniques and procedures either known to, or readily developed from known manners, means, techniques and procedures by practitioners of the art to which the invention belongs. 
     The descriptions, examples, methods and materials presented in the claims and the specification are not to be construed as limiting but rather as illustrative only. 
     Meanings of technical and scientific terms used herein are to be commonly understood as by one of ordinary skill in the art to which the invention belongs, unless otherwise defined. The present invention may be implemented in the testing or practice with methods and materials equivalent or similar to those described herein. 
     Referring to the drawings, and more particularly to  FIGS. 1 to 12 , a first embodiment of a spindle assembly  100  is shown, for supporting a roll  20  of web material  21 —or web material roll  20  (as represented in  FIG. 20 )—in a dispenser  10  (or web material dispenser). The web material roll  20  defines a central cavity  26  of the roll  20 . Moreover, the web material roll  20  has a bushing  30  provided in its central cavity  26 . As it will be further detailed, the spindle assembly  100  comprises first and second spindle elements  200 ,  300  (or a bushing-engaging member  200  and a spindle connection member  300 , or first and second roll support members  200 ,  300 ) configured to be assembled together (i.e. to be configured in an assembled configuration) thereby allowing use of the web material roll  20  with the bushing  30  in the web material dispenser  10 . The term “use” should be understood as referring to the delivery or dispensing of the web material  21  via a dispenser opening (not represented) of the web material dispenser  10 . The spindle assembly  100  may also be referred to as a “spindle adaptor”, since it allows replacing the conventional spindle (or mandrel) of dispensers for instance configured to receive web material rolls without a bushing provided in their cavity, with the “spindle assembly” or “spindle adaptor”, so as to allow receiving rolls provided with a bushing inserted therein. 
     Web Material Dispenser and Web Material Roll 
     Referring to the drawings, and more particularly to  FIGS. 12, 19 and 21 to 23 , the dispenser  10  (or web material dispenser  10 ) is configured to dispense rolled web material  21 . The dispenser  10  comprises a first (or left) side  12  and a space-apart second side  16  (or right side), the first and second sides  12 ,  16  defining at least partially a dispenser cavity  19  in between, to receive the roll  20  of web material  21 . The roll of web material  21  can be a roll of hygienic paper for example. 
     In the embodiment shown, the first and second sides  12 ,  16  are substantially parallel to each other and extend, for instance, in substantially vertical planes. First and second guiding rails  14 ,  18  are formed respectively in the first and second sides  12 ,  16 . The rails can take other shapes and configuration, as long they allow receiving opposite ends of the spindle assembly  100 . For instance, and without being limitative, the dispenser  10  could comprise first and second substantially U-shaped receiving portions mounted respectively to the first and second sides  12 ,  16  dimensioned and shaped to receive the opposite ends of the spindle assembly  100 . Elongated slots could also be formed in the first and second sides  12 ,  16  communicating with the dispenser cavity  19  and be shaped and dimensioned to receive the opposite ends of the spindle assembly  100 . 
     Referring to  FIGS. 8, 11, 12 and 20 , the roll  20  of web material  21  illustrated is a toilet/hygienic paper roll and has a central axis X 1 . The roll  20  of web material has first and second opposed extremities  22 ,  24 . The rolled web material  21  defines two opposed lateral sides  25 ,  28  that extend, in this embodiment, substantially parallel to each other in substantially vertical planes. In other words, in the embodiment shown, the opposed lateral sides  25 ,  28  extend substantially perpendicularly to the central axis X 1 . 
     In the illustrated embodiment, the roll  20  of web material further comprises a hollow central core  23  inserted in the central cavity  26  defined by the rolled web material  21 , typically made of cardboard, around which the web material  21  is rolled. Even though the hollow central core  23  might be useful to help and maintain the shape and dimensions of the central cavity  26  of the web material roll  20 , it could be conceived a web material roll  20  in which the central cavity  26  would only be defined by the rolled web material  21 . Such rolls of web material are sometimes referred to as “coreless” rolls. 
     The roll  20  of web material can be a toilet paper roll, a hand towel paper roll, or any other type of rolled paper or more globally any other type of rolled web material product. 
     The web material roll  20  illustrated is a toilet/hygienic paper roll, comprising the bushing  30  inserted therein, provided in the roll&#39;s central cavity  26 , toward the first extremity  22 , as best shown in  FIG. 20 . In the embodiment shown, the central cavity  26  has a cross-section  27  ( FIG. 8 ) substantially constant along the central axis X 1 . The central cavity  26  is shaped and dimensioned for the bushing  30  to be at least partially inserted therein. This embodiment of a bushing is only one of many possible other configurations of bushings that can be used according to the present invention. Different possible embodiments of the bushing  30  are described in CA 3.036.028 filed by the Applicant. In this example, a single bushing is inserted at one of the extremities  22 ,  24  of the roll  20  of web material, but in other embodiments, it is possible to have two bushings, one bushing being inserted in each of the two extremities of the roll of web material. 
     When inserted into the roll  20  of web material, the bushing  30  defines a central axis that substantially coincides with the central axis X 1  of the roll  20 . In other words, when the bushing  30  is inserted in the roll  20  of web material, the central axis of the bushing  30  is preferably substantially coaxial with the central axis X 1  of the roll  20  of web material. 
     Referring to  FIGS. 8 to 12 , the bushing  30  comprises a body  32  sized, shaped and configured to be fitted at least partially into the central cavity  26  of the roll  20 . The bushing  30  has first and second ends  34 ,  36 . When the bushing  30  is fitted in the central cavity  26  of the roll  20 , the first end  34  is proximate to the first extremity  22  of the roll  20 . 
     It is thus understood that the bushing  30  is configured to be mounted in at least one of the extremities of the roll  20  by being snugly fitted into the central cavity  26  thereof, so that the bushing  30  cannot rotate relative to the roll  20  around the central axis X 1  once in place. 
     The bushing  30  may further comprise an outside collar  38  extending from and encircling the first end  34 . As illustrated in  FIG. 8 , when the bushing  30  is inserted into the roll  20  of web material, the outside collar  38  abuts the first lateral side  25  of the roll  20 . 
     As best shown in  FIGS. 9 and 10 , the bushing  30  may further comprise a wall  40  that is configured to extend, when the bushing  30  is at least partially inserted into the central cavity  26  of the roll  20  of web material, across the central cavity  26  of the roll  20 . The wall  40  includes an opening or hole  42 . In the embodiment shown, the wall  40  of the bushing  30  is configured to be at least partially broken, as will be described below, when the first spindle element  200  is removed from the roll  20  of web material. 
     As best shown in  FIGS. 9 and 10 , the body  32  of the bushing  30  has an inner surface  43  having a portion located near the first end  34  of the bushing  30  and defining a first bearing surface or contact surface  44 . This first bearing surface  44  has a first diameter d 1  (identified in  FIG. 10 ). The surface of the opening  42  formed in the wall  40  defines a second bearing surface or contact surface  46  having a second diameter d 2 , the second diameter d 2  being smaller than the first diameter d 1 . In this embodiment, the bushing  30  is fixedly inserted in the roll. In the embodiment shown, the first spindle element  200  or bushing-engaging member  200  of the spindle adaptor/assembly  100  can be rotatable with respect to the bushing  30  (and with respect to the web material roll  20  provided with the bushing  30 ) about the central axis X 1 . For instance, the first and second bearing surfaces  44 ,  46  contact the bushing-engaging member  200  when the bushing-engaging member  200  and the bushing  30  are rotated relative to each other about the central axis X 1 . The first spindle element  200  of the spindle assembly  100  can thus be rotated about the first axis X 1  with respect to the roll  20  provided with the bushing  30 . 
     Depending for instance on the pulling force exerted on the web material  21  and/or on the material forming the bushing  30  and/or the material forming the first spindle element  200 , the first spindle element  200  can be in frictional engagement with the bushing  30  so that the first spindle element  200  be substantially fixedly inserted in the bushing  30 , with the wider section  230  (or proximal portion  230 —identified in  FIG. 1 ) being in contact with the inner surface of the bushing  30  near the first end  34 , and the narrower section  250  (also identified in  FIG. 1 ) being in contact with the edge of the bushing&#39;s wall  40 , the edge of the wall  40  delimiting the bushing&#39;s opening/hole  42 . The assembly formed by the bushing  30  and the first spindle element  200  of the spindle assembly  100  can thus be fixed with respect to the roll  20  (i.e. the assembly of the bushing  30  and the first spindle element  200  can be prevented from rotating relative to the roll  20  around the central axis X 1  once in place in the central cavity  26 ), in which case the roll rotates in the dispenser via a first dispenser mounting portion  210  of the first spindle element  200  (identified in  FIG. 1 ) on one side, and via a second dispenser mounting portion  310  of the second spindle element  300  on the other side, as will be described in more detail below. 
     First Spindle Element: Bushing-Engaging Member 
     Referring to  FIGS. 1 to 6 , the first spindle element  200  (or first roll-supporting member  200  or bushing-engaging member  200 ) defines a central axis extending substantially parallel to the central axis X 1  of the web material roll  20  (for instance substantially coinciding with the central axis X 1  of the roll  20  of web material) when the first spindle element  200  is at least partially engaged in the bushing  30  and/or in the central cavity  26  of the roll  20 . 
     The first spindle element  200  has a first end  202  (or outer end, in that it is configured to be located outwardly with regards to the central cavity  26  of the roll  20 , or proximal end, with regards to the first side  12  of the dispenser  10 ) and an opposed second end  204  (or inner end, with regards to the central cavity  26  of the roll  20 , or distal end, with regards to the first side  12  of the dispenser  10 ) and comprises a first dispenser mounting portion  210  and a bushing mounting portion  220  (or roll-supporting portion or bushing-engaging portion  220 ). 
     The first dispenser mounting portion  210  is removably mountable to the first side  12  of the dispenser  10 , and the bushing mounting portion  220  (or roll-supporting portion or bushing-engaging portion  220 ) is sized and configured to fit in and at least partially connect to the bushing  30  provided in the roll  20  of web material. 
     First Dispenser Mounting Portion 
     The first dispenser mounting portion  210  (or first dispenser-connecting portion) forms the first end  202  (or outer end) of the first spindle element  200  and is removably mountable to the first side  12  of the dispenser  10 . 
     Optionally, the first dispenser mounting portion  210  comprises a first shaft  212  receivable in the first guiding rail  14  of the first side  12  or slidably positionable in the first guiding rail  14  of the first side  12 . The first shaft  212  is substantially cylindrical. 
     The first dispenser mounting portion  210  further comprises a first blocking disk  214  (or first outer member) forming at least partially the first end  202  of the first spindle element  200 . The first shaft  212  extends between the first blocking disk  214  and the bushing mounting portion  220 . The first blocking disk  214  presents a cross-section greater than a cross-section of the first shaft  212  so that, when the first shaft  212  is received in the first guiding rail  14 , as illustrated in  FIG. 12 , the first shaft  212  cannot be moved (for instance cannot be translated) along the central axis X 1  of the roll  20 ) for the first dispenser mounting portion  210  to be removed from the first side  12  of the dispenser  10 . In other words, the first blocking disk  214  is configured to abut against a portion of the first side  12  of the dispenser  10  (for instance to abut against a portion of an outer face of the first side  12 , considered with respect to the dispenser cavity  19  of the web material dispenser  10 ) when the first spindle element  200  is mounted to the first side  12  and is translated inwardly along a direction substantially parallel to the central axis X 1  of the roll  20 . Even though in the embodiment shown, as represented in  FIG. 12 , the first blocking disk  214  extends proximate to the outer face of the first side  12  of the dispenser  10  when the first spindle element  200  is mounted thereto, a first spindle element  200  dimensioned so that the first blocking disk  214  would be spaced apart from the first side  12  of the dispenser  10  when mounted thereto could also be conceived. A first spindle element  200  having no first blocking disk  214  could also be conceived. 
     It is appreciated that the shape and the configuration of the first dispenser mounting portion  210 , and more particularly the shape and configuration of the first shaft  212  and the first blocking disk  214 , can vary from the embodiment shown. 
     In the second embodiment of the spindle assembly  700  represented in  FIGS. 13 to 19 , the first spindle element  800  (or bushing-engaging member  800 ) also comprises a first dispenser mounting portion  810  and a bushing-engaging portion  820 . The first dispenser mounting portion  810  further comprises a first spacing element  811  removably mounted to the first shaft  812 . The first spacing element  811  is shaped and dimensioned to increase a cross-section of the part of the first dispenser mounting portion  810  configured to be mounted to the first side  12  (for instance the part of the first dispenser mounting portion  810  configured to be at least partially received in the first guiding rail  14 ) for the first dispenser mounting portion  810  to be adapted to web material dispensers having first guiding rails of different dimensions. The first spacing element  811  is shaped and dimensioned to surround at least partially an outer periphery of the first shaft  812 . The first spacing element  811  can be made in a material different from a material forming the first shaft  812 , or in a same material. The first spacing element  811  is shaped, dimensioned and configured not to prevent the first dispenser mounting portion  810  from being rotated with respect to the first side  12  of the dispenser  10 , upon exertion of a pulling force on the web material  21  of the web material roll  20  (i.e. on a free end of the web material roll  20 ). In some embodiments (not represented), the dispenser might be configured to receive upper and lower web material rolls  20  in a superposed configuration (i.e. the upper web material roll is engaged with upper portions of the first and second sides of the dispenser, whereas the lower web material roll is engaged with lower portions of the first and second sides). The dispenser might further comprise a restraining assembly configured to maintain the upper web material roll engaged with the upper portions of the first and second sides until the lower web material roll is empty; once the lower web material roll is empty, the upper web material roll is driven downwardly for its web material to be dispensed. The first spacing element  811  might thus be shaped and dimensioned so as to prevent the upper web material roll from being driven downwardly before the lower web material roll is empty. 
     Bushing Mounting Portion (or Bushing-Engaging Portion) 
     The bushing mounting portion  220  (or roll-supporting portion or bushing-engaging portion) comprises, inwardly along the central axis (with regards to the roll receiving cavity  19  or dispenser cavity  19  of the dispenser  10 ), a proximal portion  230  proximate to the first dispenser mounting portion  210 , a central portion  240 , a distal portion  250  and a free end  260 . In the embodiment shown, a cross-section of the bushing-engaging portion  220  decreases from the proximal portion  230  towards the free end  260 . 
     In the embodiment shown, the proximal portion  230  and the distal portion  250  are both substantially cylindrical. The proximal portion  230  has a cross-section  232  that is greater than a cross-section  252  of the distal portion  250 . 
     The central portion  240  is thus located between the proximal portion  230  and the distal portion  250 . For instance, the central portion  240  has a substantially truncated cone shape: a cross-section of the central portion  240  decreases from a first extremity (or proximal extremity) proximate to the proximal portion  230  towards a second extremity (or distal extremity) proximate to the distal portion  250 . 
     The first spindle element  200  further comprises a head  270  (for instance a tapered head  270 ) bulging at the free end  260 . In other words, the head  270  is tapered and has a cross-section decreasing from a first extremity (or outer extremity, with regards to the roll receiving cavity  19  of the dispenser  10 ) proximate to the distal portion  250  towards an opposed second extremity (or inner extremity). A shoulder  272  ( FIG. 10 ) is thus formed between the bulging tapered head  270  and the distal portion  250 . 
     The bushing mounting portion  220  defines a rod receiving cavity  278 . In the embodiment shown, the rod receiving cavity  278  extends at least partially along the proximal portion  230 , the central portion  240 , the distal portion  250  and the free end  260 , and the rod receiving cavity  278  opens onto the free end  260 . The bushing mounting portion  220  further comprises first and second blocking windows  234 ,  236  (or first and second blocking members) formed in a peripheral wall of the proximal portion  230 . Optionally, the first and second blocking members  234 ,  236  comprise substantially rectangular windows formed at two distinct longitudinal positions—considered along the central axis X 1  when the spindle assembly  100  is mounted to the web material roll  20 —of the bushing mounting portion  220 . 
     It is appreciated that the shape and the configuration of the bushing mounting portion  210 , and more particularly the shape, the configuration and the relative location of the proximal portion  230 , the central portion  240 , the distal portion  250 , the head  270  forming the free end  260  and the rod receiving cavity  278  formed therein can vary from the embodiment shown. The shape, number, configuration and location of the first and second blocking windows  234 ,  236  might also vary from the embodiment shown. For instance, non-through recesses could be formed in the peripheral wall of the proximal portion  230 . 
     For instance, as represented in  FIG. 13 , the bushing-engaging portion  820  of the first spindle element  800  also comprises first and second blocking windows  834 ,  836  formed in the peripheral wall of the proximal portion  830 . The first spindle element  800  further comprises visual indications proximate the first and second blocking windows  834 ,  836  (for instance numerals). 
     Connection Assembly: Assembling Rod 
     In the embodiment shown, the spindle assembly  100  further comprises a connection assembly configured to connect together the first and second spindle elements  200 ,  300  when configured in the assembled configuration. 
     The connection assembly firstly comprises an assembling rod  400  of the first spindle element  200  extending from the free end  260  of the bushing mounting portion  220 . 
     The assembling rod  400  comprises a free end  402  forming the second end  204  (or inner end or distal end, considered with respect to the first side  12  of the web material dispenser  10 ) of the first spindle element  200 . Optionally, the free end  402  has a substantially cylindrical shape and extends in a direction substantially parallel to the central axis X 1  of the roll  20 , when the first spindle element  200  is engaged in the central cavity  26  of the roll  20 . The free end  402  of the assembling rod  400  has a cross-section  403  smaller than the cross-sections  232 ,  252  of the proximal portion  230  and the distal portion  250  of the bushing mounting portion  220 . 
     The assembling rod  400  further comprises a proximal part  404  (or mounting portion) received in the rod receiving cavity  278  formed in the bushing mounting portion  220 , so that only the free end  402  of the assembling rod  400  is visible from the outside of the first spindle element  200  and protrudes from the head  270  of the bushing mounting portion  220 . As represented in  FIGS. 9 and 10 , the proximal part  404  comprises a mounting base  406  optionally having a substantially truncated shape, for the mounting base  406  to substantially fit in the portion of the rod receiving cavity  278  formed in the central portion  240  of the bushing mounting portion  220 . The mounting base  406  further comprises at least a blocking tongue  408  (or blocking piece) having a blocking end  409  dimensioned to be selectively received in each of the first and second blocking windows  234 ,  236  (or to cooperate with the first and second blocking members) of the bushing mounting portion  220 . 
     It is thus understood that the assembling rod  400  is configurable into a first configuration (or retracted configuration), as represented in solid lines in  FIG. 2 , in which the blocking end  409  of the blocking tongue  408  is received in the first blocking window  234 . When configured in the first configuration (or retracted configuration), the free end  402  of the assembling rod  400  is at a first distance  410  from the first dispenser mounting portion  210  (the first distance  410  corresponding to the distance between a distal extremity  407  of the free end  402  and the first blocking disk  214 ). The assembling rod  400  is further configurable into a second configuration (or extended configuration), as represented in dotted lines in  FIG. 2 , in which the blocking end  409  of the blocking tongue  408  is received in the second blocking window  236 . When configured in the second configuration (or extended configuration), the free end  402  of the assembling rod  400  is at a second distance  420  from the first dispenser mounting portion  210 . The second distance  420  is greater than the first distance  410 . In some embodiments, the second distance  420  is less than about 95% of the first distance  410 . In some other embodiments, the second distance  420  is less than about 92% of the first distance  410 . In yet some other embodiments, the second distance  420  is equal to or smaller than about 90% of the first distance  410 . 
     It is thus understood that the first blocking window  234  and the blocking tongue  408 , on the one hand, and the second blocking window  236  and the blocking tongue  408 , on the other hand, form first and second blockers to block the assembling rod  400  respectively in the first and second configurations. By removing the blocking tongue  408  from one of the first and second blocking windows  234 ,  236 , displacing the assembling rod  400  in the rod receiving cavity  278 , and placing the blocking tongue  408  in the other one of the first and second blocking windows  234 ,  236 , it is easy to configure the assembling rod  400  from one of the first and second configurations to the other one of the first and second configurations. 
     Similarly, the first spindle element  800  of the spindle assembly  700  in accordance with the second embodiment also comprises an assembling rod  1000  configurable into first and second configurations (or retracted and extended configurations). The assembling rod  1000  comprises a blocking tongue  1008  ( FIGS. 17 and 18 ) selectively engageable in the first and second blocking windows  834 ,  836 . The use of visual indicators proximate to the first and second blocking windows  834 ,  836  allows to easily identify in which of the first and second configurations the assembling rod  1000  is configured. 
     It is appreciated that the shape, the configuration, and the location of the first and second blockers can vary from the embodiments shown, as long as they allow an easy axial or longitudinal positioning and blocking of the assembling rod  400 ,  1000  with regards to the first mounting portion  210 ,  810 . It could also be conceived a first spindle element  200 ,  800  in which the assembling rod  400 ,  1000  could be configurable into more than two discrete positions. 
     Moreover, it is appreciated that the shape and the configuration of the assembling rod  400 ,  1000  and more particularly the shape and the configuration of the free end  402 ,  1002  and the proximal part  404 ,  1004 , can vary from the embodiment shown. For instance, as represented in  FIGS. 17 and 18 , recesses  1001  can be formed in the assembling rod  1000 , to reduce a weight of the first spindle element  800  and/or to ease the manufacturing of the first spindle element  800 . 
     Additional Features of the First Spindle Element 
     The first spindle element  200  further comprises a first abutting portion  280  (or first handling portion or first insertion-limiting portion or first engagement-limiting portion) located between the bushing mounting portion  220  and the first dispenser mounting portion  210 . In other words, the first abutting portion  280  and the first blocking disk  214  form two axially spaced enlargements at the first dispenser mounting portion  210 . It is appreciated that the shape and the number of the axially spaced enlargements can vary from the embodiment shown. 
     Optionally, the first abutting portion  280  is substantially cylindrical and has a cross-section  282  greater than the cross-section  232  of the proximal portion  230 , and thus greater than the cross-section  252  of the distal portion  250 . The cross-section  282  of the first abutting portion  280  is greater, in the embodiment shown, than a cross-section of the first blocking disk  214 . The cross-section  282  of the first abutting portion  280  is also greater that the cross-section  27  of the central cavity  26 , so that the first abutting portion  280  abuts against the lateral side  25  of the roll  20  when the assembling rod  400  is engaged into the bushing  30  provided in the central cavity  26  of the roll  20 . The first abutting portion  280  thus limits the engagement of the first spindle element  200  into the bushing  30  provided in the central cavity  26  of the roll  20 . Optionally, when the bushing  30  comprises the outside collar  38  configured to limit the insertion of the bushing  30  into the central cavity  26 , the first abutting portion  280  of the first spindle element  200  abuts against the outside collar  38  when the first spindle element  200  is inserted into the bushing  30 . In other words, the outside collar  38  is sandwiched between the first abutting portion  280  and the web material  21  (the first lateral side  25  of the web material roll  20 , in the embodiment shown). 
     Grapping recesses  284 , for instance substantially trapezoidal, are formed in the first abutting portion  280 , that are configured to ease the handling of the first spindle element  200 . 
     Optionally, a recess (or groove or peripheral recess)  274  is formed in the bushing mounting portion  220  of the first spindle element  200 , behind the head  270 . In other words, the recess  274  is formed between the distal portion  250  and the head  270 . The recess  274  extends along at least a portion of an outer periphery of the bushing mounting portion  220 , optionally along substantially the entirety, i.e. along all of the outer periphery of the bushing mounting portion  220 . As shown, the recess  274  can define a substantially truncated portion extending between a front end of the distal portion  250  and a rear end of the head  270 . In other words, the recess  274  is shaped and dimensioned so that the cross-section of the bushing mounting portion  220  regularly decreases between the front end of the distal portion  250  and the rear end of the head  270 . It is however appreciated that the shape and the dimensions of the recess  274  can vary from the embodiment shown. 
     The recess  274  is configured so that, when the first spindle element  200  is removed from the roll  20  of web material with the bushing  30  inserted therein, the wall  40  is at least partially received in the recess  274 . Thus, the abutment surface of the substantially vertically extending face formed between the front end of the distal portion  250  and the tapered head  270  (i.e. at the shoulder  272  formed between the bulging head  270  and the distal portion  250 ) against the wall  40  of the bushing  30  is increased. Consequently, breaking of the wall  40  of the bushing  30  upon removal of the first spindle element  200  is facilitated. In other words, the recess  274  eases breaking of the wall  40  when the first spindle element  200  is forced out of the bushing  30 . 
     Moreover, as represented for instance in  FIGS. 9 and 10 , the bushing mounting portion  220  further comprises a blocking protrusion  276  (comprising for instance a blocking ring) mounted to the front end of the distal portion  250 . The blocking protrusion  276  extends from an outer surface of the bushing-engaging portion  220  (an outer surface of the distal portion  250  thereof, in the embodiment shown). The blocking protrusion  276 —or peripheral protrusion—extends along at least a portion of an outer periphery of the distal portion  250 . Optionally, the blocking protrusion  276  extends along substantially the entirety of the outer periphery of the distal portion  250 . The blocking protrusion  276  might be integrally formed with the bushing mounting portion  220 , and more particularly with its distal portion  250 . It is appreciated that the shape and the dimensions of the blocking protrusion  276  can vary from the embodiment shown. 
     It is thus understood that, considered along the central axis of the bushing mounting portion  220  of the first spindle element  200  towards the free end  260 , an outer diameter of the bushing mounting portion  220  increases from the cross-section  252  of the distal portion  250  to the cross-section of the blocking protrusion  276 . Then the cross-section of the bushing mounting portion  220  decreases in the recess  274  and then increases when passing the shoulder  272  defined between the distal portion  250  and the tapered head  270 . 
     The blocking protrusion  276  is configured to limit the engagement of the first spindle element  200  in the bushing  30 : the blocking protrusion  276  forms a longitudinal blocker to cooperate with the wall  40  of the bushing  30  so as to ensure that, once the first spindle element  200  is introduced in the bushing  30 , the first and second bearing surfaces  44 ,  46  of the bushing  30  are adequately arranged with regards to the first spindle element  200  (and more particularly with regards to the proximal portion  230  and the distal portion  250  of the bushing mounting portion  220 ), thus resulting in an inadequate dispensing of the web material. 
     It is appreciated that the shape, the configuration, the relative arrangement and the number of blocking protrusion and peripheral recess can vary from the embodiment shown. For instance, as represented in  FIG. 14  of the second embodiment of the spindle assembly  700 , a plurality of axially spaced peripheral recesses  874 ,  875  (two, in the embodiment shown) can be formed in the bushing-engaging portion  820  of the first spindle element  800 . 
     Construction of the First Spindle Element 
     As shown in  FIGS. 5 and 6 , the first spindle element  200  might be composed of a plurality of distinct elements secured together. For instance, the first spindle element  200  is composed of three distinct elements, at least some of them being partially hollow, connectable together (for instance removable mountable to each other) so as to form the rod receiving cavity  278  when assembled together. 
     In the embodiment shown, the first spindle element  200  comprises a first piece  201  forming the bushing mounting portion  220  and a portion of the first abutting portion  280 . The first spindle element  200  further comprises a second piece  203  forming a complementary portion of the first abutting portion  280  and the first dispenser mounting portion  210 . The first and second pieces  201 ,  203  are detachably mountable to each other, for instance with closing tongues formed on the second piece  203  that are configured to be received in closing windows formed in a portion of the first piece  201 , optionally configured to form a peripheral wall of the first abutting portion  280 . The first spindle element  200  further comprises a third piece  205  forming the assembling rod  400 . 
     The present disclosure might also concern a kit for forming a first spindle element  200 , the kit comprising the first, second and third pieces  201 ,  203 ,  205 . To form the first spindle element  200 , the third piece  205  is firstly introduced in the rod receiving cavity  278  formed in the first piece  201 , via an extremity of the first piece  201  opposed to the free end  260 . Then the second piece  203  is secured to the first piece  201  so as to maintain the assembling rod  400  in the rod receiving cavity  278 . The kit might further comprise the piece(s) forming the second spindle element  300 . 
     It is appreciated that the shape and the configuration of the first spindle element  200 , and for instance the shape, configuration, cooperation and number of pieces composing the first spindle element  200  can vary from the embodiment shown. 
     Second Spindle Element: Spindle Connection Member 
     Referring to  FIGS. 1 to 6 , the second spindle element  300  of the spindle assembly  100  (or spindle connection member  300  or second roll-supporting member  300 ) defines a central axis extending substantially parallel to the central axis X 1  of the web material roll  20  (for instance substantially coinciding with the central axis X 1  of the web material roll  20  when the second spindle element  300  is at least partially engaged in the central cavity  26  of the roll  20  via the second extremity  24  and mounted to at least one of the second extremity  24  of the web material roll  20  and the first spindle element  200 . It is understood that, in particular depending on the shape and dimensions of the first and second spindle elements  200 ,  300 , and depending on whether the second spindle element  300  is directly mounted to the first spindle element  200 , the central axis of the second spindle element  300  might be inclined with respect to the central axis X 1  of the web material roll  20  when the second spindle element  300  is at least partially engaged in the central cavity  26  of the web material roll  20 . In other words, depending on the shape and dimensions of the first and second spindle elements  200 ,  300 , a portion of a weight of the web material roll  20  supported by the first spindle element  200  can differ. In some embodiments, the first spindle element  200  can directly support a major part of the weight of the web material roll  20 . 
     The second spindle element  300  has a first end  302  (or outer end, with regards to the central cavity  26  of the web material roll, or a proximal end, considered with regards to the second side  16  of the dispenser  10 , or a dispenser-mounting end) and an opposed second end  304  (or inner end, or distal end or first spindle element-engaging end) and comprises a second dispenser mounting portion  310  and a connecting portion  320  mountable or connectable to at least one of the second extremity  24  of the roll  20  and the first spindle element  200 . Even though in the different figures (for instance  FIGS. 11 and 12 ) the second spindle element  300  is in contact with the roll  20  of web material, it could be conceived a spindle assembly wherein the second spindle element would not contact the roll of web material when connected to the first spindle element and/or engaged with the dispenser. The connecting portion  320  extends from the second dispenser mounting portion  310 . The second dispenser mounting portion  310  is removably mountable to the second side  16  of the dispenser  10 . 
     Second Dispenser Mounting Portion 
     The second dispenser mounting portion  310  (or second dispenser-connecting portion) of the second spindle element  300  forms at least partially the first end (or outer end or proximal end)  302  of the second spindle element  300  and is removably mountable to the second side  16  of the dispenser  10 . 
     Optionally, the second dispenser mounting portion  310  comprises a second shaft  312  receivable in the second guiding rail  18  of the second side  16  or slidably positionable in the second guiding rail  18  of the second side  16 . The second shaft  312  is substantially cylindrical. 
     The second dispenser mounting portion  310  further comprises a second blocking disk  314  (or second outer member) forming at least partially the first end  302  of the second spindle element  300 . The second shaft  312  extends between the second blocking disk  314  and the connecting portion  320 . The second blocking disk  314  presents a cross-section greater than a cross-section of the second shaft  312  so that, when the second shaft  312  is received in the second guiding rail  18 , as represented in  FIG. 12 , the second shaft  312  cannot be moved (for instance cannot be translated) along the central axis X 1  of the roll  20  for the second dispenser mounting portion  310  to be removed from the second side  16  of the dispenser  10 . In other words, the second blocking disk  314  is configured to abut against a portion of the second side  16  of the web material dispenser  10  (for instance to abut against a portion of an outer face of the second side  16 , considered with respect to the dispenser cavity  19  of the web material dispenser  10 ) when the second spindle element  300  is mounted to the second side  16  and is translated inwardly along a direction substantially parallel to the central axis X 1  of the roll  20 . Even though in the embodiment shown, as represented in  FIG. 12 , the second blocking disk  314  extends proximate to the outer face of the second side  16  of the dispenser  10  when the second spindle element  300  is mounted thereto, a second spindle element  300  dimensioned so that the second blocking disk  314  would be spaced apart from the second side  16  of the dispenser  10  when mounted thereto could also be conceived. A second spindle element  300  having no second blocking disk  314  could also be conceived. 
     It is appreciated that the shape and the configuration of the second dispenser mounting portion  310 , and more particularly the shape and configuration of the second shaft  312  and the second blocking disk  314  (or second outer member), can vary from the embodiment shown. 
     In the second embodiment of the spindle assembly  700  represented in  FIGS. 13 to 19 , the second spindle element  900  (or spindle connection member  900  or second roll-supporting member  900 ) also comprises a second dispenser mounting portion  910  and a connecting portion  920 . The second dispenser mounting portion  910  further comprises a second spacing element  911  removably mounted to the second shaft  912 . The second spacing element  911  is shaped and dimensioned to increase a cross-section of the part of the second dispenser mounting portion  910  configured to be mounted to the second side  16  (for instance the part of the second dispenser mounting portion  910  configured to be at least partially received in the second guiding rail  18 ) for the second dispenser mounting portion  910  to be adapted to web material dispensers having second guiding rails of different dimensions. The second spacing element  911  is shaped and dimensioned to surround at least partially an outer periphery of the second shaft  912 . The second spacing element  911  can be made in a material different from a material forming the second shaft  912 , or in a same material. Similarly to the above-described first spacing element  811 , the second spacing element  911  is shaped, dimensioned and configured not to prevent the second dispenser mounting portion  910  from rotated with respect to the second side  16  of the dispenser  10 , upon exertion of a pulling force on the web material  21  of the web material roll  20  (i.e. on the free end of the web material roll  20 ) and/or to prevent the upper web material roll from being driven downwardly before the lower web material roll is empty, in the above-mentioned embodiment in which the dispenser is configured to receive the upper and lower web material rolls in a superposed configuration. 
     Connection Assembly: Connection Portion—Assembling Sleeve 
     In the embodiment shown, the connection assembly of the spindle assembly  100  further comprises the connection portion  320  configured to connect together the first and second spindle elements  200 ,  300  when configured in the assembled configuration. 
     As illustrated, in the embodiment shown, the connection portion  320  comprises an assembling sleeve  500  defining an assembling cavity  510  to receive the assembling rod  400  of the first spindle element  200  for the first and second spindle elements  200 ,  300  to be connected together when configured in the assembled configuration, thereby allowing use of the roll  20  of web material with the bushing  30  therein in the dispenser  10 . It could also be conceived a second spindle element  300  having a connection portion  320  that would be configured to be only or additionally mountable to the second extremity  24  of the roll  20 . In other words, the assembling rod  400  and the connection portion  320  form together the connection assembly of the spindle assembly  100  configured to connect together the first and second elements  200 ,  300  of the spindle assembly  100  when configured in the assembled configuration. 
     Optionally, the assembling cavity  510  is substantially cylindrical and defines a central axis. In some embodiments, the central axis of the assembling cavity  510  substantially coincides with the central axis X 1  of the web material roll  20  when the second spindle element  200  is at least partially engaged in the central cavity  26 . 
     As shown in  FIG. 7 , in the first embodiment of the spindle assembly  100 , the assembling sleeve  500  has an inner surface  512  and at least one fitting rib  514  radially extending from the inner surface. The fitting rib  514  is configured to further secure the first and second spindle elements  200 ,  300  together, when the assembling rod  400  is received in the assembling cavity  510  (i.e. when the first and second spindle elements  200 ,  300  are configured in an assembled configuration). 
     The plurality of fitting ribs  514  protruding inwardly—considered with respect to the assembling cavity  510 —from the inner surface  512  of the assembling sleeve  500  are shaped and dimensioned to form axial couplers of the assembling sleeve  500  and the assembling rod  400 . In other words, the plurality of fitting ribs  514  protruding inwardly from the inner surface  512  of the assembling sleeve  500  are shaped and dimensioned to axially couple together the assembling rod  400  and the assembling sleeve  500  upon translation along a direction substantially parallel to a longitudinal axis of the spindle assembly  100  (for instance upon translation along a direction substantially parallel to the central axis X 1  of the web material roll  20 ) of one of the bushing-engaging member  200  and the spindle connection member  300  when configured in the assembled configuration. 
     Moreover, the plurality of ribs  514  protruding inwardly—considered with respect to the assembling cavity  510 —from the inner surface  512  of the assembling sleeve  500  are shaped and dimensioned to form angular couplers between the assembling sleeve  500  and the assembling rod  400 . In other words, the plurality of ribs  514  protruding inwardly from the inner surface  512  of the assembling sleeve  500  are shaped and dimensioned to angularly couple together the assembling rod  400  and the assembling sleeve  500  upon rotation about of the longitudinal axis of the spindle assembly  100  (for instance upon rotation about the central axis X 1  of the web material roll  20 ) of one of the bushing-engaging member  200  and the spindle connection member  300  when configured in the assembled configuration. 
     Other axial and/or angular couplers of the assembling rod  400  and the assembling sleeve  500  could be conceived. 
     For instance, in the second embodiment of the spindle assembly  700 , as represented for instance in  FIG. 14 , a connection recess  1003  is formed in an outer surface  1005  of the assembling rod  1000 . The connection recess  1003  is configured to cooperate with a coupling protrusion  921  protruding from an inner surface  1112  of the assembling sleeve  1100  of the second spindle element  900 . In other words, the connection recess  1003  and the coupling protrusion  921  are engageable together to connect the first and second spindle elements  800 ,  900  when configured in the assembled configuration. 
     In the embodiment shown, the connection recess  1003  comprises an annular groove formed in the outer surface  1005  of the assembling rod  1000 , at the free end  1002  thereof. For instance, the connection recess  1003  extends substantially along an entirety of an outer periphery of the free end  1002  of the assembling rod  1000 . 
     In the embodiment shown, the coupling protrusion  921  is substantially bendable (for instance by being made in a material being substantially resilient and/or flexible) to be engaged in the coupling recess  1003  upon insertion or engagement of the assembling rod  1000  in the assembling cavity  1110  defined by the assembling sleeve  1100 . Moreover, the bending of the coupling protrusion  921  further allows the disengagement of the assembling rod  1000  from the assembling cavity  1110  upon translation of the first and second spindle elements  800 ,  900  along opposed directions. The coupling protrusion  921  and the coupling recess  1003  thus form together another possible embodiment of the axial coupler of the spindle assembly  700 . 
     In the embodiment shown, the coupling protrusion  921  and the coupling recess  1003  are configured to generate, upon engagement of the coupling protrusion  921  in the coupling recess  1003 , an audible indication of a proper configuration of the bushing-engaging member  800  and the spindle connection member  900  in the assembled configuration. For instance, the audible indication is a clicking sound. 
     It could also be conceived a coupling recess that would only extend along a portion of the outer periphery of the outer surface of the assembling rod so that the coupling recess and the coupling protrusion would also form an angular coupler of the spindle assembly. 
     It is appreciated that the shape, the configuration, and the location of the axial and angular couples can vary from the embodiments shown. 
     Referring back to  FIGS. 1 to 12  of the first embodiment of the spindle assembly  100 , the assembling sleeve  500  has a length  502  and the assembling cavity  510  extends partially along the length  502  of the assembling sleeve  500 . In other words, the assembling cavity  510  has a length  512  smaller than the length  502  of the assembling sleeve  500 . Optionally, the length  512  of the assembling cavity  510  is more than about 30% of the length  502  of the assembling sleeve  500 , optionally more than about 40%, optionally more than about 50%. 
     The assembling cavity  510  has a cross-section  516 —considered between facing ribs  514  protruding inwardly from the inner surface  512 —corresponding substantially to the cross-section  403  of the free end  402  of the assembling rod  400 , for the assembling rod  402  to be fitted in and connected to the assembling cavity  510  (i.e. for the assembling rod  400  and the assembling sleeve  500  to be in frictional engagement together). 
     The assembling sleeve  500  further comprises a proximal portion  522  located between the portion of the assembling sleeve  500  in which the assembling cavity  510  is formed, and the second dispenser mounting portion  310 . Recesses and/or a central opening  517  might be formed in the proximal portion  522 , for instance to reduce a weight of the second spindle element  300  and/or to ease the manufacturing of the second spindle element  300 . 
     As shown, the assembling sleeve  500  has a cross-section  520  substantially constant along the length  502  of the assembling sleeve  500 . Optionally, the cross-section  520  is smaller than the cross-section  27  of the central cavity  26 , so that the assembling sleeve  500  does not support the central core  23  of the web material roll  20  when inserted in the central cavity  26 . However, an assembling sleeve  500  dimensioned and configured to at least partially support the central core  23  of the web material roll  20  (so that the second spindle element  300  supports at least partially the web material roll  20 ) could be conceived. 
     It is appreciated that the shape and the configuration of the assembling sleeve  500  can vary from the embodiment shown. 
     Second Abutting Portion 
     The second spindle element  300  further comprises a second abutting portion  330  (or second handling portion or second insertion-limiting portion or second engagement-limiting portion) located between the assembling sleeve  500  and the second dispenser mounting portion  310 . In other words, the second abutting portion  330  and the second blocking disk  314  form two axially spaced enlargements at the second dispenser mounting portion  310 . It is appreciated that the shape and the number of the axially spaced enlargements can vary from the embodiment shown. 
     Optionally, the second abutting portion  330  comprises an abutting disk  332  having a cross-section  334  greater than a cross-section of the second blocking disk  314 . The cross-section  334  of the second abutting disk  332  is also greater than the cross-section  27  of the central cavity  26 , so that the second abutting portion  330  abuts against the lateral side  28  of the roll  20  when the second spindle element  300  is engaged into the central cavity  26  of the web material roll  20  via the second extremity  24 . The second abutting portion  330  thus limits the engagement of the second spindle element  300  into the central cavity  26  of the roll  20 . It could also be conceived a second spindle element  300  that would be shaped and dimensioned for the second abutting portion  330  not to contact the roll  20 . 
     Construction 
     Optionally, the second spindle element  300  is made of a single partially hollow piece, but a second spindle element made of a plurality of distinct pieces assembled together, could be conceived. For instance, the second spindle element  900  of the second embodiment of the spindle assembly  700  is made of two pieces (i.e. the second spacing element  911  and the remaining of the second spindle element  900 ). 
     Roll Dispensing Assembly 
     According to another aspect of the disclosure, there is provided a roll dispensing assembly  600 ,  1200  comprising a roll  20  of web material  21  having first and second extremities  22 ,  24  and defining a central cavity  26  provided with a bushing  30 , toward the first extremity  22 . The roll dispensing assembly  600 ,  1200  further comprises a spindle assembly  100 ,  700  according to the present disclosure, having first and second spindle elements  200 ,  300 ,  800 ,  900  mountable respectively to the first and second extremities  22 ,  24  of the roll  20  of web material. 
     Method 
     According to another aspect of the disclosure, there is provided a method for inserting a roll  20  of web material  21  in a dispenser  10 , the dispenser  10  having first and second sides  12 ,  16 , and the roll  20  of web material  21  having first and second extremities  22 ,  24  and defining a central cavity  26  provided with a bushing  30 , toward the first extremity  22 . 
     The method according to embodiments of the present disclosure may be carried out with a spindle assembly  100 ,  700  as described above. 
     The method firstly comprises providing a spindle assembly  100 ,  700  such as the ones described above, comprising first and second spindle elements  200 ,  300 ,  800 ,  900 . The method then comprises, as represented in  FIGS. 8 to 10 , engaging the first spindle element  200  in the bushing  30  of the roll  20  of web material  21 . 
     The free end  402  of the assembling rod  400  is firstly introduced in the central cavity  26  of the roll  20  via the first extremity  22 . In the embodiment shown, the free end  402  of the assembling rod  400  is engaged in the bushing  30 , until the first abutting portion  280  abuts against the lateral side  25  of the web material roll  20  and against the outside collar  38  of the bushing  30 , in the embodiment in which the bushing  30  comprises an outside collar  38 . 
     While inserting the first spindle element  200  in the bushing  30 , the tapered head  270  is introduced in the opening  42  of the wall  40  and deforms/pivots the wall  40  of the bushing  30 . When the first spindle element  200  is fully engaged in the central cavity  26 , as shown in  FIGS. 8 to 10 , the free end  402  of the assembling rod  400  extends beyond the wall  40  of the bushing  30 , so that the wall  40  extends between the free end  402  and the proximal portion  230  of the bushing mounting portion  220 . In this configuration, the first and second bearing surfaces  44 ,  46  of the bushing  30 , as shown in  FIGS. 9 and 10 , cooperate respectively with the outer surface of the proximal portion  230  and with the outer surface of the distal portion  250 . It is thus understood that the first diameter d 1  of the first bearing surface  44  and the second diameter d 2  of the second bearing surface  46  substantially correspond respectively to the cross-section  232  of the proximal portion  230  and to the cross-section  252  of the distal portion  250 . As shown, the second bearing surface  46  is kept at an adequate position of the distal portion  250  via the blocking protrusion  276 . 
     The method then comprises introducing the second spindle element  300  in the central cavity  26  of the roll  20  via the second extremity  24 . Optionally, the second end  304  (or inner end) of the second spindle element  300  is introduced in the central cavity  26  until the free end  402  of the assembling rod  400  reaches a proximal portion of the assembling cavity  510 , i.e. until the free end  402  abuts against the proximal portion  522  of the assembling sleeve  500  to configure the first and second spindle elements  200 ,  300  in the assembled configuration. In the embodiment shown in  FIG. 19 , the method further comprises engaging the coupling protrusion  921  in the connection recess  1003  and/or comprises generating an audible indication (for instance a clicking sound) when the first and second spindle elements  800 ,  900  are properly configured in the assembled configuration. 
     In the embodiment shown, the second end  304  of the second spindle element  300  is introduced in the central cavity  26  until the second abutting portion  330  abuts against the lateral side  28  of the roll of web material  20 . The spindle assembly  100  could also be used mounted onto smaller rolls of web material, in which case the second abutting portion  330  might not abut against the lateral side  28  of the web material roll  20 . 
     The method further comprises mounting (for instance removably) the first and second dispenser mounting portions  210 ,  310  respectively to the first and second sides  12 ,  16  of the dispenser  10 , as represented in  FIG. 22 . In the embodiment shown, the mounting of the first and second dispenser mounting portions  210 ,  310  comprises sliding the first and second dispenser mounting portions  210 ,  310  in the first and second guiding rails  14 ,  18  formed in the first and second sides  12 ,  16  of the web material dispenser  10 . 
     The web material  21  can thus be delivered to a user by grapping the free end of the web material  21  and rotating the roll  20  of web material in the dispenser  10 . Depending, for instance, on the pulling force exerted by the user, the first and second spindle elements  200 ,  300  might be rotated respectively in the first and second guiding rails  14 ,  16 , or remain fixed. Moreover, as mentioned above, depending also, for instance on the pulling force exerted by the user, the bushing-engaging member  200  might be rotated in the bushing  30  or remain fixed with respect to the web material  20  provided with the bushing  30 . 
     In the embodiment shown, as represented in  FIG. 23 , the web material dispenser  10  is shaped and dimensioned to receive two roll dispensing assemblies  600  in a vertically-superposed configuration. Other web material dispensers could be conceived that would be configured to receive one or more roll dispensing assemblies  600 ,  1200  in accordance with the present disclosure. 
     The spindle assembly  100 ,  700  in accordance with the present disclosure can be used to support different types of web material rolls, such as web material rolls having a central cavity with a bushing inserted therein, in different types of dispensers. The cooperation between the first and second spindle elements  200 ,  300 ,  800 ,  900  can be adjusted depending on the dimensions of the web material rolls and the dispensers. For instance, the distance between the first and second dispenser mounting portions  210 ,  310 ,  810 ,  910  can be adjusted by configuring the assembling rod  400 ,  1000  in one of the first and second configurations (or retracted and extended configurations) or by inserting either a portion or an entirety of the free end  402 ,  1002  of the assembling rod  400 ,  1000  in the assembling cavity  510 ,  1110  defined by the assembling sleeve  500 ,  1100 . 
     The steps of the method can be carried out in a reverse order to remove and replace the roll  20  of web material, for instance when the entirety of the web material  21  has been dispensed. The method firstly comprises removing the first and second dispenser mounting portions  210 ,  310 ,  810 ,  910  from the first and second sides  12 ,  16  of the dispenser  10 . The method then comprises disassembling the first and second spindle elements  200 ,  300 ,  800 ,  900  and removing the second spindle element  300 ,  900  from the central cavity  26  of the web material roll  20 . The method then comprises removing the first spindle element  200 ,  800  from the bushing  30 . Optionally, the removal of the first spindle element  200 ,  800  can at least partially break the wall  40  of the bushing  30 : the wall  40  can indeed be at least partially received in one of the recess  274 ,  874 ,  875  of the first spindle element  200 ,  800  and abut against the substantially vertical rear face of the tapered head  270 ,  870 . 
     The spindle assembly  100 ,  700  according to the present disclosure (or spindle adaptor) thus allows replacing a conventional spindle (or mandrel) of dispensers with the “spindle assembly” or “spindle adaptor”, so as to allow receiving rolls provided with a bushing inserted therein.  FIG. 21  represents a possible embodiment of a conventional spindle  11  (or mandrel, or web material roll support) that would prevent a web material roll  20  having a central cavity  26  provided with a bushing  30  from being dispensed by the dispenser  10 . In the embodiment shown, the mandrel  11  comprises first and second dispenser mounting portions  13 ,  15  mountable respectively to the first and second sides  14 ,  16  of the dispenser  10 . The mandrel  11  further comprises a body  17  extending between the first and second dispenser mounting portions  13 ,  15  and having a substantially constant cross-section that prevents the mandrel  11  from being engaged in the bushing  30  provided in the cavity  26  of the web material roll  20 . 
     The spindle assembly  100 ,  700  thus allows dispensing different types of rolls of web material with a bushing inserted in the cavity of the roll in different types of dispensers. In other words, thanks to the spindle assembly  100 ,  700 , the type of rolled material web dispensable by the dispenser  10  is not limited solely to the rolls configured to cooperate with the conventional spindle of the dispenser  10 . 
     Several alternative embodiments and examples have been described and illustrated herein. The embodiments of the invention described above are intended to be exemplary only. A person of ordinary skill in the art would appreciate the features of the individual embodiments, and the possible combinations and variations of the components. A person of ordinary skill in the art would further appreciate that any of the embodiments could be provided in any combination with the other embodiments disclosed herein. It is understood that the invention may be embodied in other specific forms without departing from the central characteristics thereof. The present examples and embodiments, therefore, are to be considered in all respects as illustrative and not restrictive, and the invention is not to be limited to the details given herein. Accordingly, while the specific embodiments have been illustrated and described, numerous modifications come to mind. The scope of the invention is therefore intended to be limited by the scope of the appended claims. 
     For instance, the assembling rod  400 ,  1000  could extend from the inner end  304 ,  904  (opposed to the outer end  302 ,  902 ) of the second spindle element  300 ,  900  and the assembling sleeve  500 ,  1100  could be formed in the first spindle element  200 ,  800 . 
     In another embodiment (not represented), the bushing-engaging member of the spindle assembly could be dimensioned to extend from the first extremity of the web material roll to the second extremity and would comprise first and second dispenser mounting portions to be mounted to the first and second sides  12 ,  16  of the web material dispenser  10 . In other words, the bushing-engaging member could comprise a bushing-mounting portion extending between the first and second dispenser mounting portions. For instance, the second dispenser mounting portion of the bushing-engaging member would have an outer cross-section smaller than an inner cross-section of the bushing, for the second dispenser mounting portion to be introduced into the central cavity of the web material roll via the first extremity. 
     It could also be conceived a web material roll that would be shaped and dimensioned to be dispensed in a web material dispenser with a spindle assembly comprising only a bushing-engaging member with a first dispenser mounting portion. In other words, it could be conceived a web material roll that would be shaped and dimensioned to be mounted to the web material dispenser only by the first dispenser mounting portion of the bushing-engaging member. For instance, the bushing-engaging portion of the bushing-engaging member could be shaped and dimensioned to fully support the web material roll. 
     As can be appreciated, the spindle assembly described above advantageously allows insertion of paper rolls provided with bushings in conventional dispensers. Of course, numerous modifications could be made to the embodiments described above without departing from the scope of the present disclosure.