MXPA00002386A - Adapter and dispenser for coreless rolls of products - Google Patents

Abstract

An adapter (10) for converting a core roll product dispenser into a dispenser for a coreless roll product having a pair of depressions defined in the ends of the coreless roll. The adapter includes:(1) a housing (12) defining a central cavity (14) and an opening (16) at an end (18) of the central cavity (14);(2) a retractable plunger (20) having a distal end (22), a central shaft (24), and a base (26), the retractable plunger (20) being configured so the base (26) and a first portion of the central shaft (24) is retained in the housing (12) and the distal end (22) and a second portion of the central shaft (24) extends through the opening (16) at an end (18) of the central cavity (14) so the plunger (20) is adapted to penetrate a depression defined at an end of a coreless roll product;(3) resilient means (28) in communication with the plunger (20), the resilient means (28) being configured to apply a force against the plunger (20) so the plunger (20) is adapted to retract into the central cavity (14) when a greater opposing force is applied against its distal end during loading and extend when the greater opposing force is removed;and (4) attachment mean (30) for securing the adapter (10) to a core roll product dispenser. Also disclosed is a dispenser for a coreless roll product having a pair of depressions defined in the ends of the coreless roll.

Description

&DiyglDQR T SUMIDO »PXRA ROLLOß DK g & OPOCTO fiyff IffK lp Field Faith the Invention This invention relates to the field of commercial and consumer roll form products, absorbent pa products, including sanitary paper and paper towels, specifically, this invention relates to an improved assortment and to a method for dispensing a coreless roll product of absorbent paper.

Background of the I n ion Commercial and consumer absorbent products such as workshop towels, non-woven fabrics, cleaning cloths, toilet paper and paper towels are usually distributed and assorted in a roll format. Most products in this format include a cylindrical core in the center of the roll. Typically, the product wrapped around the core. Most of the product jets in roll format require that this kernel work properly. The core is usually some kind of cardboard tube, plastic tube, or solid shaft that is attached to the product so that the product does not separate from the core.

The product is normally loaded when mounting the roll on the spindle in a manner similar to the ubiquitous toilet paper dispenser. The shaft passes or otherwise penetrates the inner space of the core. Some jets include spikes or prongs that penetrate the hollow space within the core for only a limited extent, as disclosed in US Pat. Nos. 390,084 and 2,905,404 issued Lañe and Si mons, respectively.

Recently, coreless roll products such as, for example, toilet paper have appeared on the market, mainly in Europe. These coreless rolls are entirely wound around the diameter of the roll. There are advantages and disadvantages associated with coreless rolls. The coreless rolls are ecologically superior to co core rolls because they do not have the central core made of plastic, cardboard or other material. In addition, more product can be provided in the space that would otherwise be occupied by the core.

Rolls with a core are more expensive to manufacture than rolls without a core due to the expense of making cores and joining the cores to the product. In addition, coreless rolls have the advantage of being less subject to theft in commercial premises due to their inherent incompatibility with conventional pumps.

On the other hand, roll products without numbers have assortment problems that are difficult to overcome. The coreless rollers do not fit in conventional dispensers. In addition, even if coreless rolls are less susceptible to being stolen because they are incompatible with conventional assortment systems, the lack of a core of an axis passing through the product that can be fixed makes it relatively difficult to secure the product from s core format.

Conventional dispensers for core rolls typically include a closed surface that holds the roll while it is rotating, and an opening through which the product passes. While they are functional, these supplier have undesirable characteristics, including or inability to control the drag to remove the product; the fact that the product actually goes inside the dispenser, which can be considered unhygienic by some consumers; and an inability to provide the consumer with 180 degree access to the product. Some coreless roll dispensers have pressure plates and bolts that project to the inside of the roll side between the product layers. It can be difficult to center the roll during the loading of these jets without a centering device and pressure plate and the bolts can be easily levered to release the spout roll.

Therefore, it is clear that there is a need for an adapter to convert conventional core roll dispensers to handle coreless rolls. There is also a need for a coreless roll dispenser that could ensure a coreless roll against theft. There is also a need for an adapter that can convert conventional core roll dispensers to supply coreless rolls for consumer and commercial absorbent paper products. There is another additional need for a dispenser that can supply consumer and commercial absorbent paper products in coreless roll so that they can be secured against theft.

SYNTHESIS OF THE INVENTION The problems described above are examined by the present invention which encompasses an adapter for converting a roll product product with a core into a product jet for a coreless roll having a cavity pair defined at the ends of the coreless roll.

The adapter includes: (1) a box defining a central cavity and an opening at the end of the central cavity; (2) a retractable piston having a distal end, central axis, and a base, the retractable piston being configured so that the base and a first portion of the central part are retained in the box and the distal end and second portion of the shaft central extend through the opening to one end of the central cavity so that the embolus is adapted to penetrate the defined cavity at one end of coreless roll product; (3) elastic means and communication with the plunger, the elastic means is configured to apply a force against the plunger so that the plunger is adapted to retract in the central cavity when a greater opposing force is applied against its distal extremity when it is load and spread when the greater opposition force is removed; and (4) securing means for securing the adapter to a product co-core roll dispenser.

According to the invention, the frame for the adapter may also include a mounting base for the adapter to be more easily fixed to the core roll product dispenser.

The elastic means in communication with the piston can be a spring, a clip, a sponge, an elastomeric material or the like that can be compressed, rolled or stretched so that the piston can be retracted and which exerts a force while compressed, wound or pulled so that the plunger can be extended.

The base of the plunger can be configured to define an opening in a cavity inside the plunger. Elastic means may protrude into the cavity inside the plunger. For example, if the elastic means are spring, the spring may protrude into the plunger base.

In an embodiment of the invention, the opening at the end of the cavity may be circular. The opening can be triangular, square, diamond, semicircular "X", "Y", or aT "or similar, it is desirable that the end opening of the central cavity corresponds to the cross section of the plunger. consequently, the plunger may have a cross section that is circular in shape, square triangular, diamond, semicircular, aX "," Y ", or ttY" or similar It is desirable that the plunger have a wide cross section of at least 1 centimeter. If the drum has a circular cross section, it is desirable that the diameter be at least 1 centimeter. The distal end of the plunger may have a radius of curvature and desirably define a hemisphere. Of course, other geometries are contemplated for the shape of the distal end of the plunger. It is also contemplated that the plunger may have a narrow width or a variable anc.

The distal end of the plunger may extend from the opening of the box by a greater distance than the width of the plunger. For example, if the plunger has a cross-sectional width of about 1 centimeter, it is desirable that the distal end of the plunger extends more than 1 centimeter from the opening at the end of the box. As another example, the distal end of the plunger can be extended by 1.25 centimeters 1.5 centimeters, 1.75 centimeters, 2.0 centimeters, or 2.2 centimeters or more. A greater extension of the plunger helps to provide greater penetration into the cavities defined at the ends of the coreless roll product and helps prevent theft of the coreless roll product from the spout.

Retractable means in communication with the retractable piston can be used to retract the plunger e against the force applied by the retractable means. The retractable means may be a knob, a lever and a cam mechanism, a squeegee or the like.

In an embodiment of the invention, a lock means for retaining the retractable piston in an extended position can be included in the adapter. The lock means may be a cam, squeegee, ratchet, split pin or the like. The lock means can be activated by a key or pin.

The retractable plunger may further include retaining means to prevent the retractable plunger from fully entering through the opening at one end of the central cavity. This retaining means may be, for example, a flange, an edge, a pin, a wedge or a similar structure The present invention also encompasses an assortment for a coreless roll product having a pair of defined cavities at the ends of the coreless roll. The supplier includes: a frame; mounting means that allow the frame to be mounted on a stationary surface such as a wall; and coreless roll securing means for securing the coreless roll product to rotate within the frame. The coreless securing means comprises at least one element including: (1) a frame defining a central cavity and an opening at one end of the central cavity; (2) A retractable plunger having a distal end, a central axis, and a base, the retractable plunger is configured so that the base and the first portion of the center axis are retained in the frame and the distal end and a second portion of the The central axis extends through the opening so that the plunger is adapted to penetrate a cavity defined at one end of a roll product without a core; (3) elastic means in communication with the plunger, the elastic means being configured to apply a force against the plunger so that the plunger is adapted to retract into the cavity when a larger opposing force is applied against its distal end during the loading and extend when the opposing force is removed; and (4) fixing means for securing the adapter to a co-core product roll dispenser.

The mounting means for the dispenser can be, for example, an opening defined in the frame for a safety member such as a bolt. Other mounting means, such as clamps, pins, screws, latches and similar can also be used.

In an embodiment of the present invention, the coreless securing means may include a pair of opposing arms that are connected to the frame. In the embodiment, an element that includes: (1) a box defining a central cavity and an opening at one end of the central cavity are mounted on the inside of each arm; (2) a retractable piston having a distal end, a central axis and a base, the retractable piston that is configured so that the base and a first portion of the central axis are retained in the box and the distal end and a second portion of the central shaft s extend through the opening at one end of the central cavity so that the plunger is adapted to penetrate a cavity defined at one end of the product of the coreless roll; (3) elastic means in communication with the plunger, the elastic means are configured to apply a force against the plunger so that the plunger is adapted to retract into the central cavity when an opposing force may be applied against its end distal during loading and extends when opposing force majeure is removed; and (4) fixing means for securing the adapter to the core roll product dispenser, whereby the radial displacement of the coreless roll relative to said frame during use is avoided.

The dispenser may include other presser means for elastically pressing at least one of the opposite arms toward the coreless roll. The presser means may be tested in the form of at least one of the opposing arms being constructed of an elastic material, so that the arm (or arms) is configured so that it is slightly displaced when a coreless roll is secured within the spout.

The insulator means of the roll without spout core are integrated with at least one of the elements described above. These elements include an elastic means and communication with the plunger. The elastic means may be a spring, clamp, sponge, elastomeric material or the like which can be compressed, rolled or pulled so that the plunger can be retracted and exert a force while it is compressed, wound or pulled so that the plunger can be extended.

The base of the plunger can be configured to define an opening in a cavity inside the plunger. Elastic means may protrude into the cavity inside the plunger. For example, if the elastic means is spring, the spring may protrude into the plunger base.

The opening at the end of the central cavity may be circular. The opening may be square triangular, diamond, semicircular, "X", aY ", or" T "or similar, desirable, that the opening at the end of the central cavity equals the cross section of the plunger. it may have a cross section that is circular, triangular, square, diamond, semicircular, aX ", ao" T "or similar.

It is desirable that the plunger has a cross section width of at least 1 centimeter. If he has a circular cross section, it is desirable that the diameter be at least one centimeter. The distal end of the plunger may have a radius d curvature and desirably defines a hemisphere. Of course other geometries are contemplated for the shape of the distal end of the plunger. It is also contemplated that the plunger may have a narrow width or a variable width.

The distal end of the plunger may extend from the opening to the end of the frame by a distance greater than the width of the plunger. For example, if the plunger has a cross section width of 1 centimeter, it is desirable for the distal end of the plunger to extend more than 1 centimeter from the opening at the end of the frame. As another example, the distal end of the plunger can extend by 1.25 centimeters, 1.5 centimeters, 1.75 centimeters, 2.0 centimeters, or 2.2 centimeters or more. A greater extension of the plunger helps to provide greater penetration into the depressions defined at the ends of the coreless roll product helping to prevent theft of the product from the coreless roll of the spout.

The retractable means in communication with the retractable plunger can be used to retract the plunger against the force applied by the elastic means. The retractable means may be a knob, a lever and a cam mechanism, a handle or the like.

In an embodiment of the invention, fixing means for stopping the retractable piston in an extended position can be included in the adapter. The fixing means may be a cam, a lever, a ratchet, a split pin or the like. The fixing means can be activated with a key or with a bolt.

The retractable plunger may include other retention means to prevent the retractable plunger from passing through the opening at one end of the center cavity. These retention means may be, for example, a lip, a pin, a wedge or a lip. similar structure.

These and several other advantages and innovative features which characterize the invention are particularly pointed out in the appended claims to which they form a part hereof. However, for a better understanding of the invention, its advantages, and the objects obtained for its use, mention should be made of the drawings that form an additional pair thereof, and the attached descriptive matter, in which it is illustrated and the preferred embodiment of the invention is described.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is an illustration of an exemplary arrangement for converting a product spout into roll core to a coreless spout product.

* Figure 2 is a cross-sectional view showing the adapter shown in Figure 1.

Figure 3 is a cross-sectional view showing the adapter shown in Figure 1 in a retracted position.

Figure 4 is an illustration of a detail of an example adapter.

Figure 5 is an illustration of a dispensing arm of a roll product dispenser with conventional core.

Figure 6 is an illustration of an exemplary adapter tailored in an assortment arm of a conventional core roll dispenser product.

Figure 7 is an illustration of a characteristic of an exemplary adapter.

Figure 8 is an illustration of an exemplary coreless roll product dispenser.

Figure 9 is an illustration of an exemplary coreless roll dispenser product.

Figure 10 is an illustration of an exemplary coreless roll dispenser.

DETAILED DESCRIPTION Referring now to the drawings, in similar reference numerals designate corresponding structures through the views, and referring particularly to FIG. 1, an illustration of an exemplary adapter 10 for converting a product spout into a roll is not necessarily illustrated. with core in a spout product coreless roll having a pair of cavity defined at the ends of the coreless roll.

The adapter includes a box 12 defining a central cavity and an opening 16 at one end 18 of the central cavity 14. The adapter contains a retractable piston 20 q has a distal end 22, a central axis 24, and a base 26. adapter also it includes an elastic means 28 communication with the plunger 20. A fixing means 30 is also included in the adapter for securing the adapter to the coreless roll dispenser product. In some embodiments of the invention, a support plate "P" may be attached to the box 12 to keep the elastic means 28 contained within the adapter 10 and allow convenient positioning of the plunger 2 within the central cavity 14 of the box 12 .

Referring now to Figure 2, it can be seen that the retractable piston 20 is configured so that the base 26 and first portion 32 of the central axis 24 is retained in the box and the distal end 22 and a second portion 34 of the cent 24 axis extend to through the opening 16 in a central cavity end 14 so that the plunger is adapted to penetrate the cavity defined at one end of the coreless roll product. The plunger can be configured so that it is essentially fixed or unable to rotate around its axis. In such a case, it is desirable that the plunger be constructed materials that provide low levels of friction to allow the coreless roll to rotate freely. Alternatively, the plunger may be configured so that it can rotate freely. It is contemplated that the plunger can be configured to be able to rotate with the roll without nub during the assortment.

The retractable piston may include other retention means to prevent the retractable piston from passing entirely through the opening at one end of the center cavity. Generally speaking, the base 26 of the plunger may serve with retention means. As can be seen from figure 2 the width of the base 26 is greater than the width of the opening 1 at the end 18 of the central cavity 14. This difference in physical size prevents the plunger from passing entirely through the opening. However, it is contemplated that many other types of retaining means may be used. The examples may include, but are not limited to, tabs, rebord pins, collars, rings, wedges, poles, trusses, or similar structures or devices.

Referring now to Figure 3, the elastic means 28 are configured to provide or apply force against the plunger 20 so that the plunger 20 is adapted to retract into the central cavity 14 when a greater opposing force is applied against the end. distal 22 during loading and extend when the greater opposing force is removed. The elastic means in communication with the plunger may be a spring, a clamp, a sponge, elastomeric material or the like which can be compressed rolled or pulled so that the plunger can be retracted and which exert a force while they are compressed, rolled or pulled to that the plunger can be extended. The force provided or applied by the elastic means fulfills purposes.

First, the elastic means allow the plungers to retract during the loading process. In some configurations of the spout the distance between the adapters is fixed so that it is slightly longer than the width of the roll. The pistons must be capable of retractors to load the roll.

Second, the force provided or applied to the elastic means is used to retain the roll when the diameter of the roll is very small. The force should be balanced so that it retains a nearly reduced roll but applies a lot of pressure to prevent the roll from turning in a fixed plunger.

Referring again to Figure 1, the plunger base 20 can be configured to define an opening 3 a cavity 38 inside the plunger 20. The elastic means can protrude into the cavity 38 inside the plunger. For example, if the elastic means are a spring, spring may protrude into the base of the plunger.

Referring now to Figure 4, the box 12 d adapter 10 may include another mounting base 40 so that the adapter can be more easily fixed to a roll product product with core. The mounting base 40 may be configured to provide a greater pressure area that provides more stability and / or surface area. A larger surface area may be advantageous if the adhesives are used (alone or in combination with other fastening means for attaching the adapter to a co-core product roll dispenser.

Figure 5 is an illustration of an arm portion typically found at conventional core-rocket products. The illustration shows a spout 50 defining an aperture 52. This aperture 52 e normally configured to receive shank (not shown) passes through the center of the core roll product as a conventional sanitary paper spout. Alternatively, additionally, the opening 52 may be adapted to receive a rod wherein the core roll product was wound or otherwise included.

Typically, conventional core roll products have two of these spout arms (with openings 52) mounted in a frame. Some conventional dispensers may have sides instead of arms and may have openings configured on the sides. In any case, the arms or sides and corresponding openings are spaced apart by a distance that is slightly greater than the width of the core roll product to be supplied.

Figure 6 is an illustration of an exemplary adapter mounted on a conventional core roll product dispenser arm 50 shown in Figure 5. The adapter 10 fits within the opening 52 shown in Figure 5. In this illustration, a part of the adapter box 12 is shown extending from the arm 50. A plunger 20 is shown protruding from an opening 16 in the end of the box 12. mounting adapters 10 in each arm of the spout product with conventional core quickly and easily convert Conventional dispenser in a core roll product spout. The retractable pistons 20 protruding from each br are adapted to fit within the cavities defined at each end of the coreless roll dispenser product.

Figure 7 is an illustration of another exemplary adapter mounted on a paper core product arm 50 with conventional core shown in the figure. 5. This adapter is configured with a mounting base 40 fixed to the frame generally shown in Figure 4.

The long mounting base 40 stabilizes adapter 10 when forces are applied during car and / or assortment. The mounting base 40 also provides a larger area for an adhesive fastener if such fastening means are used.

In an embodiment of the invention, the opening 16 at the end 18 of the central cavity 14 can be circulated. The opening 16 can also be of any convenient shape or cross-section. For example, the opening 16 may be triangular, square, diamond, semicircular, uv »« v "or similar. It is desirable that the end opening of the central cavity correspond to the cross section of the plunger. Accordingly, the plunger may have a cross-sectional shape that is circular, square triangular, diamond, semicircular, in the form of ttX "," Y "or tt or the like.

Generally speaking, it is desirable that the stem has a cross-sectional width slightly greater than the width of the cavity at the end of the core roll product. This configuration assists in securing the roll when loaded, avoiding over-wrapping the roll during the assortment, helping to stop the roll while the roll is finished. For example, if the cavities defined at both ends of the coreless roll have a diameter of less than 1 centimeter for example of -0.9cm) the plunger will desirably have a diametre width of about 1 centimeter or slightly more than one centimeter.

In an embodiment of the invention, it is desirable that the plunger have a section width of at least one centimeter (about% in.). If the plunger has a circular cross section, it is desirable that the diameter be at least 1 centimeter. The distal end of the plunger may have a radius of curvature and desirably defines a hemisphere. L rounded tip serves as a centering device to load the roll and relieve the load by providing a front bord. The straight sides of the plunger help the roll to oscillate during assortment, help the roll to rotate freely to avoid damage to the roll during assortment. Of course, other geometries are contemplated for the shape of the distal end of the plunger. It is also contemplated that the plunger may have a narrow width or a variable width.

Desirably, the distal end of the plunger s extends from the opening to the end of the housing by a distance that is greater than the width of the plunger. For example, if the plunger has a section width of about 1 centimeter, it is desirable for the distal end of the plunger to extend more than 1 centimeter from the opening at the end of the box. As a further example, the distal end of the plunger may extend by 1.25 centimeters, 1.5 centimeters, 1.75 centimeters, 2. centimeters, or 2.25 centimeters or more. A larger plunger extension helps provide greater penetration into the cavities defined at the ends of the roll if core product. Good penetration of the plunger into the roll if the core and the straight and smooth sides of the plunger help prevent the theft of the coreless roll product from the spout to make it difficult to have a grip of the plunger to push it back into a retracted position and download the roll. Thus the product can be loaded into the dispenser until the roll is completely finished.

Retractable means in communication with retractable piston can be used to retract the plunger from the force applied by the elastic means. The retractable med may be a knob, a lever and a cam mechanism, a shot or the like. This feature is optional and may be located opposite the plunger (eg on the opposite side of the pocket as the plunger). In other embodiments of the invention, fastening means for retaining the retractable bolster in an extended position can be included in the adapter. The fixing means may be a cam, lever, ratchet, split pin or the like. L fixation means can be activated by a key or bypass Such fastening means will be desirable for adapters used in environments where theft can be faced. The means attached to the plunger may discourage discharge of the core roll as it becomes more difficult to push back or retract the plungers out of the cavities defined at the ends of the coreless roll product.

The present invention also encompasses an assortment for dispensing a coreless roll product having a pair of defined cavities at the ends of the coreless roll. Many different types of products can be produced in a coreless roll format. For example, commercial and consumer absorbent products such as workshop towels, knitted fabrics, wipes, sanitary paper and paper towels are often distributed and assorted in roll format. Referring now to Figs. 8-10 and in particular to Fig. 8, there is shown a dispenser 100 for dispensing roll products without core 200 (shown in broken lines) having pair of cavities defined at the ends of the roll without core The spout 100 includes a frame 114 having mounting holes 116 defined therein to allow a frame to be mounted on a stationary surface, such as a wall. The dispenser 100 further includes a coreless roll security mechanism 118 for securing a coreless roll product 200 (eg, sanitary paper) for turning inside the frame 114. In the embodiment shown in FIG. 8, the roll security mechanism no core 118 includes first arm 120, a second, central arm 122 and a third arm 124.

The dispenser 100 shown in FIG. 8 is designed to accommodate two rolls of coreless roll product (eg, sanitary paper), similar to many conventional assortments that are available for commercial applications.

Desirably, the outer arms 120, and 12 are constructed so that they are rigid and do not move. However, in one embodiment of the invention, the outer arms 120, 124 may be made of elastic material, t as a steel spring, and are configured to be slightly offset when a coreless roll is secured between the arm 122 and the respective outer arms 120, 12 In this way, the outer arms 120, 124 will be able to tilt respective coreless roll 200 toward the central arm 122.

An important advantage of the invention is that the security mechanism of the coreless roll 118 is designed to prevent radial displacement of the core rolls 200 with respect to the frame 114 of the spout 100 during its use, so that a roll without core can be assorted fear of a radial displacement during use, in a safe way as a conventional absorbent paper roll with core product can be.

Desirably, this is achieved by providing the elements 128 on the inner surfaces 126 of the respective arms 120, 122, 124 of the security mechanism 118 Each element is configured essentially in accordance with the construction of the adapter shown in Figure 1. As an example and with reference to Figure 1, each element can include a box 12 defining a central cavity 14 and an opening 16 at the end 18 of the central cavity 14. The box can be an integral part of the respective arms 120, 122 and 124 (shown in figure 8) or it can be a discrete unit that is attached to each of the arms. Each element includes retractable plunger 20 having a distal end 22, a central axis 24, and a base 26. Each element also includes elastic meds 28 in communication with the plunger 20.

The elements 128 of the security mechanism 1 can optionally include a joining means 30 as shown for the adapter of the construction of Figure 1. The joining means can be used if the box is constructed with a discrete unit and is not integral with the arms of the security mechanism (for example, if the box is not molded, welded constructed, formed, etc. as part of the arms of the safety mechanism). Other features of the security mechanism elements 128 are essentially in accordance with the construction adapter of Figs. 2-4.

For example, the elements 128 may be constructed to include a support plate for securing the box to hold the elastic means contained within the element and to allow convenient positioning of the embolus within the central cavity of the frame. Generally speaking, the retractable piston is configured so that the base and the first portion of the central shaft are retained in the box and the distal end and a second portion of the central shaft extends through the opening in one end of the central cavity for * «• that the plunger is adapted to penetrate a cavity defined the product end of the coreless roll. The plunger may be configured to be essentially fixed or incapable of turning on its axis.

In such a case, it is desirable that the plunger s be constructed of materials that provide low friction levels that allow the coreless roll to rotate freely. Alternatively, the plunger may be configured so that it can rotate freely. It is designed so that the plunger can be configured and be able to rotate with the coreless roll during the assortment.

The retractable plunger may further include a retaining means for preventing the retractable plunger from fully entering through the opening at one end of the central cavity. Generally speaking, the base of the plunger may serve as a means of retention. This can be achieved by constructing the plunger so that the width of its base is greater than the width of the opening at the end of the central cavity. This difference in physical size prevents the plunger from passing entirely through the opening. However, it is anticipated that other types of retention media may be used. These examples may include but are not limited to, flanges, flanges, collars, collars, rings, wedges, clamps, poles, strings, or similar structures or devices.

The resilient means is configured to provide or apply a force against the plunger so that the plunger is adapted to retract within the central cavity when a larger opposing force is applied against the distal end during loading and extends when the greater opposing force is removed. The elastic means communicating with the plunger can be a spring, or clamp, a sponge, an elastomeric material or the like which can be compressed, rolled, or pulled so that the stem can be extended.

In one embodiment, the base of the plunger can be configured to define an opening to a cavity in the interior of the plunger. The elastic means may protrude from the cavity inside the plunger. For example, if the elastic medium is a spring, the spring may protrude into the base of the plunger.

With reference to Figure 8, a number of retractable plunger 20 extend internally from the respective elements 128 to where the coreless roll product 20 will be held during operation. These retractable plunger 30 are specifically designed to penetrate the cavities defined at each end of the coreless roll to secure the coreless roll against theft and prevent displacement of the coreless roll during use.

In embodiments of the invention where the arms 120 and 124 are constructed of elastic material, it will be appreciated that the thrust or pressure provided by the elasticity of the arms will help the pistons 20 to penetrate cavities defined at the ends of the coreless roll increase the securing of the rolls without core inside d 100 supplier during use.

Desirably, the dispenser 100 includes a cover 130 that is hinged to the frame 114 with the hinge 132. A sliding window 134 may be provided in the cover 130 to selectively expose the roll 200 of coreless roll product that is being supplied to a point. in particular in time, and to deny access 32 to the other roll or vacant place of assembly. The cover 130, the hinges 132, the sliding window 134 are conventional.

Referring now to Figures 9 and 10, another embodiment for the present invention is shown. Figures 9 and 10 illustrate a dispenser instance 140 for supplying a coreless roll product 200. The spout 140 includes frame 142, which is incorporated as a relatively simple shield around the space where the coreless roll 20 will be positioned during its use. The frame 142 has mounting holes 144 defined in a rear portion therefrom for mounting the jet 140 to a stationary surface, such as a wall. The spout 140 further includes a coil-less security mechanism 146 which is incorporated as a first arm 148 and a second arm 150. A pair of elements mounted on the respective arms 148, 150 and having an arm 20 thereon which are constructed and arranged to penetrate into the cavities defined at the ends of the core roll in the manner described above. It is envisaged that elements 152 can be molded, formed, cast, welded or otherwise constructed as an integral part of arms 148 and 152 instead of being discrete units mounted on arms.

It is envisaged that only one of the elements needs to be configured so that its plunger is retractable to achieve a satisfactory operation of the present invention (for example, discharging the spout). Desirably, both of the elements will be configured so that the pistons are retractable.

The present invention also encompasses an installation method of a coreless roll having a cavity pair defined at the opposite ends of the roll in a spout. The method includes the steps of: (a) applying a force to at least one retractable piston to retract the plunger; (b) orienting coreless roll with a pair of cavities in the opposite ends of the roll so that at least one cavity is adjacent to at least one plunger; (c) securing the core roll to the spout by penetrating into at least one coreless roll cavity with at least one plunger. The method of the present invention encompasses incorporations where the step (involves penetrating both cavities with emboli.

The method of the present invention may further involve elastically pressing the plungers into the coreless roll during its operation.

It should be understood, however, that even though numerous features and advantages to the present invention have been set forth in the foregoing description, together with the details of the structure and operation of the invention, disclosure is illustrative only, and details may be changed, especially in matters of form, size and disposition of parts within the principles of the invention and the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.

Claims (33)

1. An adapter for converting a product spout into core roll into a spout for a coreless roll product having a pair of cavities defined at the ends of the coreless roll, the adapter comprises: a box defining a central cavity and opening at one end of the central cavity; a retractable piston having one end is a central axis, and a base, the retractable piston is configured so that the base and a first portion of the central shaft are retained in the box and the distal end and a second portion of the central shaft extend through the opening at one end of the central cavity so that the embolus is adapted to penetrate the cavity defined at the end of the coreless roll product; elastic means in communication with the plunger, the elastic means are configured to apply a force against the plunger so that the plunger is adapted to retract within the central cavity when a larger opposing force is removed; and fastening means for securing the fit to a core roll product dispenser.

2. The adapter as claimed in clause 1, characterized in that the frame also includes a mounting base.

3. The adapter as claimed in clause 1, characterized in that the base of the plunger defines an opening to a cavity inside the plunger.

4. The adapter as claimed in clause 1, characterized in that the elastic means that is in communication with the plunger is a spring.

5. The adapter as claimed in clause 3, characterized the elastic means protrudes inside the cavity inside the plunger.

6. The adapter as claimed in clause 1, characterized in that the opening at the end of the central cavity is circular.

7. The adapter as claimed in clause 1, characterized in that the plunger has a circular cross section.

8. The adapter as claimed in clause 1, characterized in that the plunger has a cross-sectional diameter of at least 1 centimeter.

9. The adapter as claimed in clause 1, characterized in that the distal end of the embolus defines a hemisphere.

10. The adapter as claimed in clause 1, characterized in that the distal end of the plunger s extends from the opening at the end of the frame by a distance that is greater than the width of the plunger.

11. The adapter as claimed in clause 1, characterized in that it also includes retraction means in communication with the retractable piston to retract the piston against the force applied by the elastic means.

12. The adapter as claimed in clause 12, characterized in that the retractable means is a knob.

13. The adapter as claimed in clause 1, characterized in that it also includes means of »* Safety to hold the retractable piston in an extended position.

14. The adapter as claimed in clause 1, characterized in that the retractable piston also includes retaining means for preventing the retractable piston from passing entirely through the opening in the end of the central cavity.

15. The adapter as claimed in clause 15, characterized in that the retaining means are a flange.

16. A spout for a core roll product that has a pair of cavities defined at the end of the coreless roll, the spout includes: a frame; a mounting means for allowing the frame to be mounted to a stationary surface such as a wall; a coreless roll securing means for securing a coreless roll product to rotate within the frame, the coreless roll security means includes at least one element including: a box defining a central cavity and an opening in the end of the central cavity; a retractable piston having a distal end a central axis, and a base, the retractable piston being configured so that the base and a first portion of the central part are retained in the frame and at the distal end a second portion of the central axis extends through the opening at one end of the central cavity so that the embolus is adapted to penetrate a cavity defined at the end of a roll product without a core; Y an elastic means in communication with the plunger, the elastic means are configured so that s applies a force against the plunger so that the plunger is adapted to retract within the central cavity when a larger opposing force is applied against its distal extremity during loading and extending when a larger opposing force is removed, according to which the radial displacement of the coreless roll relative to said frame is avoided during its use.

17. The spout as claimed in clause 17, characterized in that said mounting means includes an opening defined in said frame for a safety member such as a bolt.

18. The dispenser as claimed in clause 17, characterized in that the coreless core securing means further includes a pair of opposing arms are connected to the frame, and mounted on an inner side each arm is an element that includes: a box defining a central cavity and opening at one end of the central cavity; a retractable piston having an end dist of a central axis, and a base, the retractable piston is configured so that the base and a first portion of the central shaft s retained in the box and the distal end and a second central axis portion extend to through the opening at one end the central cavity for the plunger to adapt to penetrate a defined cavity at the end of the coreless roll product the elastic means in communication with plunger, the elastic means are configured to apply force against the plunger so that the plunger is adapted to retract within the central cavity when a greater opposing force is applied against its dist end during loading and extends when the opposing force may be removed, according to which the radial displacement of the coreless roll relative to said frame is avoided during use.

19. The dispenser as claimed in clause 19, characterized in that it also includes pressurizers for elastically pressing the at least opposing arm towards said coreless roll.

20. The dispenser as claimed in clause 20, characterized in that said presser means include that at least one of said opposed arms is constructed of elastic material, and said at least one arm is configured to be slightly displaced when a roll without core is insured inside the dispenser.

21. The dispenser as claimed in clause 17, characterized in that the base of the plunger defines an opening in a cavity inside the plunger.

22. The dispenser as claimed in clause 17, characterized in that the elastic means and communication with the plunger are a spring.

23. The dispenser as claimed in clause 22, characterized in that the elastic means protrudes into the cavity inside the plunger.

24. The dispenser as claimed in clause 17, characterized in that the opening in the central cavity end is circular.

25. The spout as claimed in clause 17, characterized in that the plunger has a circular cross section.

26. The spout as claimed in clause 17, characterized in that the piston has a cross-sectional diameter of at least 1 centimeter.

27. The dispenser as claimed in clause 17, characterized in that the distal end of the embolus defines a hemisphere.

28. The dispenser as claimed in clause 17, characterized in that the distal end of the plunger s extends from the opening at the end of the casing by a distance that is greater than the width of the plunger.

29. The dispenser as claimed in clause 17, characterized in that the core-less roll securing means further includes retractable means and communication with the retractable plunger to retract the plunger e against the force applied by the elastic means.

30. The dispenser as claimed in clause 30, characterized in that the retractable means are a knob.

31. The dispenser as claimed in clause 17, characterized in that it also includes fixing means for holding the retractable piston in an extended position.

32. The jet as claimed in clause 17, characterized in that the retractable piston also includes retaining means for preventing the retractable rod from passing entirely through the opening at the end of the central cavity.

33. The dispenser as claimed in clause 33, characterized in that the retaining means are a flange.