MXPA01002640A - Apparatus dispensing wiping material in a front position of the reel - Google Patents

Abstract

The invention concerns an apparatus dispensing wiping material in a front position of the reel, comprising a housing (2), a cover (3), a drum (4), a cutting device (5-6) integrated in the drum (4), means for pushing and returning the drum (4) including an eccentric and a pusher spring. The invention is characterised in that it comprises an anti-curling device for the material coming the reel (B) of material, said device comprising a reel stand (16) capable of being engaged and positioned on a fixed support part (17), integral with the rear wall of the housing (2) back end, said reel stand (16) being mounted freely rotating on the support part (17) countering elastic return means, and the reel stand (16) is arranged to be positioned on a bearing surface (17b) of great length of the support part (17), while being locked in position relative thereto, and the reel stand (16) co-operates with the mandrel (20) of the reel of wiping material (B) to drive it.

Description

APPARATUS DISTRIBUTOR OF CLEANING MATERIAL IN A POSITION - FRONTAl_- E THE COIL DESCRIPTION OF THE INVENTION The invention relates to the technical sector of cleaning paper distribution devices in cellulose wadding, crepe paper or similar material, intended more particularly for cleaning the hands of the user, the distribution of toilet paper, the distribution of paper napkins. These papers may be in the pleated or non-pleated form. The Applicant has developed numerous patents on appliances of the type mentioned above in the automatic and semi-attic versions, and the distribution of paper webs from a roll or loading coil. The coils of cleaning material can be presented in two ways: • Whether the coil is mounted on a mandrel integral with the box of the apparatus, in such a way as to make appear, by means of a frontal assembly, said coil on its side and in its diameter, and allowing to visualize its winding in turns and its state of distribution. • Either the coil is mounted between two flanges or bobbin-holder flanges perpendicular to the rear wall of the box and allowing a presentation of the coil along its length. The present invention considers more specifically the distribution of materials - cleaning in coil or roll in the first version mentioned above. The main components of such an apparatus that have been described in French Patent 2,332,215 and applicable in the various versions mentioned above are briefly recalled. A dispensing apparatus of the cleaning material referred to as a whole by (1) comprises a box (2), a lid (3), a drum (4) ,. a cutting device (5-6) integrated in the drum, as well as the means for launching and collecting the drum including an eccentric (7) and a spring (8). In its upper part, the box is provided with a support means (9) capable of receiving the cleaning coil (B) to be distributed.

*? ' An apparatus of this type is generally used for the distribution of sanitary paper or of paper napkins or paper for cleaning hands. The traction of the paper web by the user is susceptible to being exerted in a very variable manner with a more or less important force, without taking into account the directional direction of the traction that can be a supplementary parameter in the operation of the apparatus. distributor. It can then produce a phenomenon of appearance of loops between the coil of the cleaning material and the drum over a length of band that can be a few centimeters, and even a few tens of centimeters. To remedy this drawback, the Applicant has developed anti-loop devices mainly in French Patent FR No. 2,643,808. These anti-loop devices intervene assemblies of oscillating levers mounted in relation to the coil holder and which are capable of having a pivot movement effect to reduce or compensate for the phenomenon of the loop and to tension the material web. Such assemblies are very satisfactory operation but are capable of generating load of the apparatus, being in front of and in the front plane of the coil of the material. The Applicant has developed, in the French patent application FR-98, 06702, an anti-loop device that is applied more particularly on the distributing apparatuses that include gualderas or lateral flanges for the reception of a coil holder, corresponding in this way to the second version as cited above. The device described in this patent is based on the provision of gualderas or coil-holder flanges with a ferrule that allows an assembly of elastic action of the coil, after pulling it. The arrangements described in this patent application 15 are applicable to the presentation of the cleaning coil, in a position facing the opening of the lid of the apparatus. The objective sought according to the invention would be to provide the dispensing apparatus in its application to the presentation of cleaning coils, in a front plane of the apparatus to ensure an anti-looping effect. Another objective sought by the invention would be to secure a steel in position of the coil on its support mandrel.

^ ^ These obj.etivQs and atros will still arise from the following description. According to a first characteristic, the apparatus distributing cleaning material in a front position of the coil, of the type comprising a box, a lid, a drum, a cutting device integrated in the drum, launch and collection means of the drum including an eccentric and a launching spring, is remarkable since it comprises an anti-loop device of material coming from the material spool, said device being notable because it comprises a spool holder capable of being coupled and placed on a piece of fixed support forming the hub, integral with the rear wall of the bottom of the box, said reel holder is mounted free in rotation on the support piece to meet an elastic action means, and because the spool holder is accommodated to be placed on a seat of great length of the support piece, being locked in position in relation to the latter, and because the coil holder cooperates with the mandrel d e the coil of the cleaning material, to ensure its drag.

The invention is set forth hereinafter, more in detail, with the help of the figures in the accompanying drawings in which: Figure 1 is a front view of a dispensing apparatus for cleaning material according to the invention, having the lid has been flipped; Figure 2 is a sectional view of the dispenser according to Figure 1, the lid having been swiveled; - Figure 3 is a large-scale view and in exploded view of the assembly of the constituent elements of the device of the invention; Figure 4 is a partial and large-scale view of the device according to the invention after the assembly of the coil on its mandrel; Figure 5 is a front and sectional view, following line 5-5 of Figure 4. In order to make the object of the invention more specific, it is now described in a non-limiting manner, illustrated in the figures of FIG. the drawings. The cleaning material dispenser is referred to collectively as (1). This apparatus is arranged to allow the distribution of a coil of cleaning material (B) that is presented in a frontal manner for the bottom wall (2a) of the apparatus box * in order to make one of its side faces appear, after the oscillating movement and the opening of the lid (3). The cover is articulated in its lower part to the box, with the help of the pivot shaft (10), while, at the moment of its closure, it is locked in its position on the upper part of the box, with the help of means (11) known to the person skilled in the art. The coil of cleaning material is placed in the upper part of the appliance, at an appropriate height, depending on its initial diameter. The apparatus presents in its lower part a mechanism for cutting the band of material coming from the coil. This mechanism can be, for example, of the type described in the applicant's previous patent No. FR-2, 332, 215. This mechanism comprises a drum (4) mounted in rotation relative to the lateral support flanges (12) and an axis (13) placed in the lower part of the apparatus box. The cutting device (5-6) is integrated in the drum and the launch and collection means (7-8) of the drum, with the eccentric and the spring, are conveniently placed according to the teaching of the French patent above. cited. A pressure roller (14) can be placed on the upper support on the drum thus allowing the insertion of the end of the paper web coming from the reel between the drum and the pressure roller, with a view to its subsequent distribution. A maneuver button (15) is mounted abutting the drum axis. It is now appropriate to describe the characteristics of the invention. The material spool is mounted on a spool holder referred to as a whole by the number (16) that is capable of being coupled, in its turn or revolution, on a support piece (17) that forms the hub integral with the rear wall of the bottom (2a) of the box. This support piece (17) has a profiled circular groove (17a) for example, which is capable of being fixed and coupled on a cylindrical projection (2b) established on the face of the bottom of the box. This cylindrical projection is cantilevered to the front of the wall of the box, and allows fixing by the screw (18) or equivalent of the gualdera (17a). This support piece (17) has, in a plane perpendicular to its flange (17a) and towards the front, a seat (17b) of great length, of cylindrical configuration, and which allows centering and positioning of the spool holder (16) More particularly, this seat (17b) has a support area (17bl) capable of receiving a part forming the sleeve (16a) of the coil holder (16). The end (17c) of this seat (-17b) is elongated or pointed and has, at the tip, a scalable and pivoting steel finger (19), whose function is to ensure maintenance in position mainly of the coil holder (16), as will be described in the following. For this purpose, the end (17c) of the seat (17b) of the support piece (17). presents, in a non-limiting configuration, windows (17d) between which the finger (19) is formed which has a displacement capacity for flexibility and elasticity, a movement thereof, under the exercise of a support force ( F). The finger (19) thus appears in the form of a support leg (19a) with a protruding shape (19b) that acts as a stop. The coil holder (.16) comprises an outer seat (16b) of great length, capable of being coupled to the mandrel (20) of the cleaning coil (B). Said seat (16b) is extended on one side by a collar (16c) which constitutes a face of the stop of the cleaning coil (B). In its inner part, the coil holder (16) is provided with a sleeve (16a) of great length, greater than that of the seat (17b) with, at the tip, an annular narrowing (16d). The coil holder (16) thus allows the centering and positioning of the coil IB), which takes support on the cylindrical seat (16b). The coil holder (16) forms internally, in its su. outer cylindrical seat (16b) and the inner sleeve (16a), an inner chamber (16e) that allows the coupling and fixing of a flat, spiral spring (21). One end (21a) of the latter is shaped as a hook to engage in a window (16f) forming the housing established on the peripheral wall of said seat (16b). The other end (21b) of the spring (21) also forms the hook and becomes fixed on a finger (22) placed cantilevered on the gualdera (17a) of the support piece (17). The coil holder (16) is thus mounted free in rotation on the fixed support part 117) mentioned above. At the moment of the rotation of the cleaning coil (B) due to the effect of the. Following the end of the web of material by the user, a drag is produced in rotation on the reel holder due to the tight assembly on the mandrel (20) of said reel. This rotation of the coil holder is carried out at the encounter of the spring that is subjected to a torsion effect to the maximum, on a turn to correct and eliminate, as will be indicated in the subsequent, the formation of loops that appear after the pulling of a paper band. The choice of the spiral spring allows correcting and eliminating the loops up to a length of approximately 75 centimeters, that is corresponding to the circumference of a coil whose diameter is of the order of 25 centimeters. In practice, the correction of the length of the loop, in its length, is closely linked to the circumference of the coil. To ensure good coil strength (B) of material on the spool holder (16), the latter is provided on the outer periphery of its seat (16b) with one or more means (24) that ensure a support and pull effect with the mandrel (20). ) of the coil. This or these friction means (24) can be established by a plurality of projections formed directly on the coil holder (16) at the time of its molding. In a variant and preferably, as illustrated in Figures 3 and 5 of the drawings, the friction means (24) is constituted with a tongue (24a) established transversely on the cylindrical seat (16b) of the coil holder (16). ). This tongue is made between two windows (24b) established on a part of the width of the seat (16b), which gives said tongue a certain * elasticity of displacement, in order to ensure its contact with the mandrel (- ^ of the coil (B).) On the other hand, in order to ensure a limitation of the rotation on one turn of the spool holder (16) with With respect to the fixed support part, it is provided with a protruding spur (25) placed adjacent and parallel to the cylindrical seat (17b) of the support part. inner part or forming a sleeve, a projection (16h) in projection forming a stop on the spur (25), and thus limiting the rotation of the spool holder on the support piece (17). It is placed in the part front of the spool holder, a complementary endpiece (26), capable of being coupled on the mandrel (20) of the spool of cleaning material on its front face. This ferrule (26), made of a single block, internally presents a conical shape (26a) which is extended by a cylindrical seat (26b) with the interior capable of taking support on the front part of the sleeve (16a) of the coil holder (16) and against the locking finger (19) associated with the piece of support (17) of the spool holder.

It is now appropriate to describe the operation of the device. The positioning of a coil (B) of cleaning material is carried out by inserting its mandrel part (20) on the coil holder (16), in a position such that the connecting finger (19) established on the support piece (17) of the coil holder (16), comes to block said coil in position. This is thus maintained between the collars (16c) (26c) formed * on the one hand, on the coil and on the other hand on the endpiece (26). At the moment of operation of the apparatus, the user proceeds to pull the web of material passing through the cutting mechanism described above. The rotation of the coil involves the rotation of the coil holder by tensioning the spring (21). This rotation of the coil carrier involves a spring belt. The above mentioned stop means allow limiting the tensioning of the spring on a turn. In case of continued traction on the web of material, there is a phenomenon of sliding of the mandrel on the reel holder and therefore on the reed. As shown in Figure 1, the web of material can, at the end of the traction and the cut, present a loop (short discontinuous lines). The arrest of the stress of this tension allows the coil holder, under the effect of distension or expansion and of the elastic action of the spring, to rotate in the opposite direction of the coil holder, with the automatic suppression of the loop. In Figure 1,. a support cube (27) of a reel of reserve material has been shown to be complementary. The advantages appear from the description, in particular the simple and rapid assembly of the material spool and its locking in position is emphasized. The constant tensioning of the paper web is also emphasized, thanks to the retention effect obtained after each traction. The coil holder is advantageously made in a single piece of plastic material. This is the same for the support part of the spool holder. The assembly of these components is fast. In a variant, the support piece (17) can be molded directly with the bottom wall (2a) of the box, so that in this operation, there is only one insert of plastic material, namely the coil holder It agrees to add the spring (21) previously indicated.

Claims (12)

_ CLAIMS

1. Apparatus distributing cleaning material in a front position of the coil, of the type comprising a box, a lid, a drum, a cutting device integrated in the drum, means for launching and collecting the drum including an eccentric and a launching spring, characterized the apparatus because it comprises an anti-loops device, material from the material spool, the device comprises a spool holder capable of being coupled and placed on a fixed support piece, integral with the rear wall of the bottom of the box, said coil holder is mounted freely rotatable on the support piece to meet an elastic action means, and because the coil holder is arranged to be placed on a seat of great length of the support piece, being locked in position relative to the latter, and because the coil holder cooperates with the coil mandrel of the cleaning material to ensure its drag.

2. Distribution device, according to claim 1, characterized in that the support part has a flange or flange attached to the face of the bottom of the box, and which has, in a perpendicular plane and towards the front, a large seat. length that allows the centering and the positioning of the coil holder, by an arote, and the steel in position of the coil of the material and of the coil holder, on the other hand, after the insertion of the latter on the coil holder .

3. The dispenser apparatus according to claim 2, characterized in that the seat of the fixed support part has a support area that allows the centering and positioning of the spool holder, and because the end of the seat is elongated or pointed and presents , at the tip, a retractable finger that moves in a pivot, securing the steel in position of the spool holder and the spool.

4. Apparatus distributor according to claim 3, characterized in that the end of the seat of the support part has windows between which the finger is formed which has a displacement capacity for flexibility and under the effect of the exercise of a force of support, said finger has a support leg and a protruding shape that serves as a stop.

5. The dispensing apparatus according to any of claims 1 to 4, characterized in that the reel holder comprises an outer seat capable of being coupled to the mandrel of the cleaning reel, and in its inner part the reel holder is provided with a sleeve of great length in support on the seat of the support piece and is presented, at the tip an annular narrowing to be placed in support and acerrójiento against the middle of acerrójiento.

6. Distribution device according to claim 5, characterized in that the coil holder forms, internally, between its outer cylindrical seat and the inner sleeve, an inner chamber that allows the coupling and fixing of an elastic means of collection in the form of the spring where one end is integral with the coil holder and the other end integral with the fixed support part.

7. Distributor apparatus according to claim 6, characterized in that one end i. "of the collecting means forming the spring is shaped as a hook to engage in a window forming the housing established on the peripheral wall of the cylindrical seat, and because the other end of the collecting means forms the hook and reaches To be fixed on a finger placed in projection on the gualdera of the support piece.

8. Dispensing device according to claim 6, characterized in that the coil holder has, on the outer periphery of its seat, one or more means that ensure a support and drag effect with the coil mandrel.

9. Dispensing device according to claim 8, characterized in that the friction means or means are constituted by a tongue established transversely on the cylindrical seat of the coil holder, being defined between the windows and conferring the elasticity of the tongue.

10. Dispensing device according to any of claims 1 to 9, characterized in that the support part has a projection spur which cooperates with a projection established on the reel holder and ensuring the limitation of the rotation of the reel holder.

11. Distributor apparatus according to any of claims 1 to 10, characterized in that a gualdera is capable of being attached to the coil mandrel of the cleaning material on its front face, said gualdera of a single block comprises an inner conical shape that extends by a cylindrical seat able to take support on the front part of the mandrel of the coil holder, and against the finger of the steel associated with the support part of the coil holder.

12. Distributing device according to any of claims 1 to 4, characterized in that the support part forming the hub is made of a single block with the wall of the bottom of the box.