Classifications

• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47K—SANITARY EQUIPMENT; ACCESSORIES THEREFOR, e.g. TOILET ACCESSORIES
  • A47K10/00—Body-drying implements; Toilet paper; Holders therefor
  • A47K10/24—Towel dispensers; Toilet paper dispensers
  • A47K10/32—Dispensers for paper towels or toilet paper
  • A47K10/34—Dispensers for paper towels or toilet paper dispensing from a web, e.g. with mechanical dispensing means
  • A47K10/36—Dispensers for paper towels or toilet paper dispensing from a web, e.g. with mechanical dispensing means with mechanical dispensing, roll switching or cutting devices
  • A47K10/3687—Dispensers for paper towels or toilet paper dispensing from a web, e.g. with mechanical dispensing means with mechanical dispensing, roll switching or cutting devices with one or more reserve rolls
• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47K—SANITARY EQUIPMENT; ACCESSORIES THEREFOR, e.g. TOILET ACCESSORIES
  • A47K10/00—Body-drying implements; Toilet paper; Holders therefor
  • A47K10/24—Towel dispensers; Toilet paper dispensers
  • A47K10/32—Dispensers for paper towels or toilet paper
  • A47K10/34—Dispensers for paper towels or toilet paper dispensing from a web, e.g. with mechanical dispensing means
  • A47K10/36—Dispensers for paper towels or toilet paper dispensing from a web, e.g. with mechanical dispensing means with mechanical dispensing, roll switching or cutting devices
  • A47K10/3631—The cutting devices being driven manually
  • A47K10/3643—The cutting devices being driven manually by pulling the paper
• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47K—SANITARY EQUIPMENT; ACCESSORIES THEREFOR, e.g. TOILET ACCESSORIES
  • A47K10/00—Body-drying implements; Toilet paper; Holders therefor
  • A47K10/24—Towel dispensers; Toilet paper dispensers
  • A47K10/32—Dispensers for paper towels or toilet paper
  • A47K10/34—Dispensers for paper towels or toilet paper dispensing from a web, e.g. with mechanical dispensing means
  • A47K10/36—Dispensers for paper towels or toilet paper dispensing from a web, e.g. with mechanical dispensing means with mechanical dispensing, roll switching or cutting devices
  • A47K10/3656—Dispensers for paper towels or toilet paper dispensing from a web, e.g. with mechanical dispensing means with mechanical dispensing, roll switching or cutting devices with paper jam preventing devices
• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47K—SANITARY EQUIPMENT; ACCESSORIES THEREFOR, e.g. TOILET ACCESSORIES
  • A47K10/00—Body-drying implements; Toilet paper; Holders therefor
  • A47K10/24—Towel dispensers; Toilet paper dispensers
  • A47K10/32—Dispensers for paper towels or toilet paper
  • A47K10/34—Dispensers for paper towels or toilet paper dispensing from a web, e.g. with mechanical dispensing means
  • A47K10/36—Dispensers for paper towels or toilet paper dispensing from a web, e.g. with mechanical dispensing means with mechanical dispensing, roll switching or cutting devices
  • A47K10/3631—The cutting devices being driven manually
  • A47K2010/365—Triggering mechanism for the blade
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10S83/00—Cutting
  • Y10S83/929—Particular nature of work or product
  • Y10S83/949—Continuous or wound supply
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T83/00—Cutting
  • Y10T83/889—Tool with either work holder or means to hold work supply
  • Y10T83/896—Rotatable wound package supply

Definitions

• the invention relates to the technical sector of dispensing devices for wiping materials, cellulose wadding for example, for hand towels, toilet paper, paper towels and the like.
• the dispensing apparatus (1) is of the type comprising in a housing (la) with a protective cover (Ib), inner flanges (2-3) perpendicular to the bottom wall (Ic) of said housing, said flanges being parallel two to two and at different levels.
• the lower flanges (2) are the support of a drum (4) incorporating the cutting device (5) known in itself through various patents of the applicant.
• the flanges (3) located in a plane greater than the previous ones are the support of the coil of wound material.
• the spool (B) is not in contact with the drum.
• the casing In its lower part (Id), the casing is arranged with a longitudinal opening (1c) for the passage, gripping and pulling of the strip of overflowing material.
• the side flanges (2) drum support are arranged with known means for the output of the cutting blade of the drum, and this towards the rear of the device.
• the drum has at its end axes (4a) bearing and centered in pre-established cavities on the flanges (2) above. Pressing means (6) can be supported on the drum in the manner described in the applicant's patents.
• a drum spin corresponds to a cut material format.
• transverse pressure rollers are arranged obliquely and come into contact with the side edge of the coil to provide a braking function. But in case of very strong and fast traction, given the inertia of the material reel (up to 2 kg of weight), the appearance of loops still exists.
• an anti-loop device from a reel of material including a mechanism acting on the reel holder by locking in position the latter and being actuated by a feeder device integrated in the drum movement and ensuring operation or not the locking of the reel holder.
• the feeder device intervenes only in case of strong traction of the drawn material strip.
• the locking device of the lever under the receiving disk of the tip remains random, the locking finger does not necessarily penetrate into one of the notches formed on the receiving disk. Furthermore, it has been described in this patent, the implementation of a receiving end of the mandrel of the wiping coil arranged with a central recess forming a housing receiving two expandable half-flanges under the action of rolling means and driven by a belt acting as a brake. The spacing of said flanges causes the belt to come into contact with the inner portion of the mandrel and causes it to lock.
• the solution provided by the applicant thus makes it possible to optimize the operation of the apparatus by creating a total and instantaneous blocking of the coil of wiping material, at each revolution of the drum, without the possibility of sliding, as a result of a contact of uncertain support and this in the case of any traction force of the operator on the strip of material to be taken.
• This solution is also advantageous during a continuous and slow tensile force to cut the strip of material.
• the device for assisting the braking of the spool of wiping material in a wiper material dispensing apparatus the apparatus being of the type comprising, in a housing with a protective cover, lower support flanges.
• the apparatus further comprising an anti-loop device material from the coil incorporating a lever whose head partially surrounds the receiving end of the mandrel of the spool and, in the lower part, a feeder device integrated in the movement of the rotating drum and ensuring the operation and locking of the spool, the lever being arranged with a complementary means cooperating with the mandrel support end of the material spool, characterized in that the lever, in its gooseneck head part, A non-circular curvilinear internal configuration with an outward separation amplitude and in the region of maximum amplitude an internally oriented perpendicular anchoring projection for cooperating by anchoring in a rod of elastomeric material disposed on the flange of the receiving tip of the mandrel of the material spool, and in that the feeder device comprises a counterweight cam which cooperates with the lever, at each revolution of the drum, ensuring self-locking.
• Figure 1 is a schematic view of an automatic cutting wiper material dispensing apparatus capable of integrating the device of the invention.
• FIG. 2 is a partial view showing the inside of the device incorporating the anti-loop device according to the invention in a first implementation.
• Figures 3A and 3B are views complementary to Figure 2 showing, in particular, in the preferred implementation, guiding the weight cam by complementary means before contact with the lever to actuate the anti-loop function.
• FIGS. 4A and 4B are views illustrating the anti-buckling device of the invention in the first implementation of configuration of the lever, and in successive phases of non-solicitation then of solicitation.
• FIG. 5 is an exploded perspective view showing the various components of the tip penetrating the mandrel of the material coil.
• FIGS. 6A and 6B are views, according to FIG. 5, of the components of the tip before and after mounting.
• FIG. 7 is a partial view of the anti-loop device, according to the invention, illustrating a variant of the anti-buckle device with the lever positioned and designed differently, and of the bit in its complementary function of stopping or braking of the coil.
• FIG. 8 is a view of the cam only flyweight.
• the dispensing apparatus is of the type described above, in the essential components that may be concerned by the invention shown in FIG. 1. For the sake of clarity, this statement has been limited to stick to the implementation of the invention. Of course, the dispensing apparatus may be equipped with other complementary devices which are, for example, described in the applicant's various patents.
• the optimized anti-loop device implements two particular means, namely a lever (10) and a counterweight cam (11) which, by virtue of their relation, allow a self-locking action of the material coil, to each drum revolution, that the traction of the strip of material is strong, fast or slow, eliminating any possibility of sliding.
• These two means (10) and (11) interact between the drum (4) which integrates the cutting device of the material reel and the braking device of the reel. More particularly, the two means (10) and (11) are described below.
• the lever (10) can be positioned by presenting its gooseneck-shaped head (10a), either from the rear of the housing of the apparatus, that is to say, the inside rear side of the end plate carrying the end piece (12) integrating into the mandrel of the material spool, or in front of said end piece.
• Said endpiece (12) thus comprises a flange (12a) in the form of a disk arranged on its periphery with a groove (12b) receiving a rod (13) of elastomeric material intended to be in contact with the lever (10), under conditions which will be specified later.
• the flange (12a) has a central hole (12c) for the passage of a connecting means (14) and a cap (15) having a hollow cylindrical surface (15a) capable of penetrating into said central hole (12c) .
• the flange (12a) has an inner cavity (12d) circular in the center of which is a circular bearing (12e) of smaller section. This range is arranged with at least two interior curvilinear gaps (12f) if they are two, or evenly distributed if there are three. Interior clearances (12f) are large.
• At least two rolling means (16), in the form of fingers, are arranged in abutment with the bottom of the flange, facing said interior clearances. The number of fingers is a function of the number of clearances mentioned above.
• At least two half-rings (17) forming jaws having a substantially oval and non-circular configuration, in the form of a ramp, are thus integrated and arranged around the aforementioned circular bearing (12e) and rolling means (16).
• These two half rings at least are interconnected by a resilient retaining means (18) of the spring type allowing their connection and their radial spacing according to the stresses that will be specified later.
• the two half-rings, or each of the ring parts, if there are several have projections (17a) capable of penetrating into the support mandrel of the material coil and being in contact with the internal bore of this last.
• the cap (15) is fixed above the half-rings and bears against the front face of the circular bearing (12e) which extends substantially beyond the plane of the two half-rings, so that they can rotate.
• the two half-rings are presented opposite the clearance portions of the circular bearing (12e), to allow a perfect fit by surrounding the rolling means (16). It is thus understood that the half-rings will have a particular effect of locking in rotation of the support mandrel of the coil. It is then appropriate to expose the particular configuration of the lever (10).
• This lever (10) in its head portion (10a) shaped gooseneck, has a non-circular curvilinear inner configuration (10b) but, on the contrary, with a certain amplitude gradually diverging outwards with respect to the rod (13) disposed on the end piece (12) and around which is positioned the head (10a) of the lever (10).
• the lever has, in the zone of maximum amplitude of the curvilinear configuration (10b), a projection (10c) oriented towards the rod (13) of the tip.
• This projection is located in a perpendicular plane oriented internally to the part facing the rod, when the lever is actuated, to come to anchor in the thickness of the ring and cause the rotation stop of the flange (12a) of the mouthpiece (12).
• the half-rings which can partially turn on a few degrees of the order of 10 to 20 °, under the pulling effect of the strip of material, are thus locked in position by the effect of their spacing radial contact with fingers (16) by their displacement which is offset from the bottom of the recesses (12f) allowing the spacing of the rings.
• the anchoring protrusion (10c) may be near the end of the lever head, as shown in Figure 2, or near the base of the lever head, as shown in Figure 7. In either case, the position this projection is very particular to allow the proper functioning of the device.
• the pivot axis (19) of the lever on the flange (3) support is established at the base of the head of the lever when the anchor projection is at the end of the head, and conversely near the end of the head when the projection is near the base of the lever head.
• the angle ⁇ between the two axes XX and YY is of the order of 20 to 40 degrees, and preferably 30 °, which allows the self-locking until the separation of the strip of material after what the lever is released.
• the elastic return of the lever, in position, is effected by a return means (14) which is fixed, on the one hand, to the lever (10) and, on the other hand, to the flange (3) or the flange ( 2), according to the implementations described above.
• this corresponds to the presence of the anchoring protrusion at the base of the lever head and, in the other case, the anchoring projection is located at the end of the head of the lever.
• the lower end (1Of) of the lever has an extra thickness to be opposite the weight cam. It is then necessary to expose the characteristic of the second means, the masellotte cam, which participates in the actuation of the lever.
• the lever has an arm (10e), of great length, coming along the flange (2) bearing the drum opposite the weight cam (11) which is pivotably mounted relative to a support piece ( 15), provided with an axis (15a) integral with the end flange (4a) end of the drum (4) or molded directly with the flange.
• the positioning of the support piece (15) is located downstream of the longitudinal slot formed on the drum and allowing the passage of the cutting device (5).
• the counterweight cam (11) has a particular profile shown in FIG. 6.
• Holding washers provide the exit prevention of the counterweight cam on the axis (15a).
• This base extends outwardly to give a hook configuration (Ie) with an outer curvilinear end portion (Hd) forming a ramp and cam.
• This weight cam (11) during the tensile force and the centrifugal force inherent in the rotation of the drum, will remain freely deported outwards and abut against the lever (10) causing, in turn, tilting said lever and anchoring it in the rod (13) disposed on the tip.
• the shape of the flyweight is set so that its center of gravity (G) is shifted rearwardly with respect to a line (ZZ) which would pass between its axis of rotation and the axis of the drum, which allows it to remain "standing", from the end of the section of the previous strip of material to its arrival facing the lever (10) for the next cut.
• the contact of the counterweight cam on the lower arm portion (1 Of) of the lever is effected on the edge facing it, and it is provided the addition of a damper pad (20) noise during contact between the flyweight cam and the arm portion of the lever.
• the abutment (21) secured to the flange (3) limits the movement of the lever forward.
• the stop (22) is disposed under the passage zone of the lower arm of the lever and serves to support the flywheel cam when it has escaped the control of the lever after complementary rotation of the drum.
• the combination of the particular configuration of the lever head and the counterweight cam causes, at each drum revolution, as soon as there is a contact between them, the stop in immediate rotation of the reel of material and thus the desired anti-loop effect.
• This phase is of course punctual because the relaxation of the tension force due to cutting, causes the tilting of the weight cam in the initial position of rest with pivoting in non-extension position. The lever resumes its position.
• the anti-buckle device includes a complementary means (23) for guiding the weight cam and ensuring perfect holding thereof at each revolution of the drum so as to allow the projection of the cam automatically. flyweight cam on the lever arm (10) and control the coil lock function and avoid loops.
• This complementary means comprises at least one fixed component (23a) formed or attached to the flange (3). This component ensures the fixing of a leaf spring (23b) shaped gendarme hat by one (23bl) of its ends. The other end (23b2) is free and is oriented on the lever side (10).
• This leaf spring has a flat section to be facing, on the one hand, the ramp profile (Hd) of the counterweight cam and, on the other hand, under the lower edge of the fixed component (23a).
• the central portion of the spring blade of the spring blade is located in the passage path of the counterweight cam when rotating the drum on a lathe.
• the counterweight cam is in a standing position, as explained above, facing the spring blade.
• said flyweight cam will lift the leaf spring (23b) and cause a slight deformation thereof. This will cause a certain tension on the spring blade which will have the effect of ensuring a pressure on said cam feeder which will thus be maintained in a firm position without tilting tendency by its counterbases given by its support axis (15a) of rotation and the contact with the spring blade (23b).
• the particular configuration of the tip including the ovalized shapes of the half rings and curvilinear forms established on the internal clearances formed on the cylindrical scope allows the reversibility of position of the coil of material is unwinding from the front or unwinding from behind, with an auto-blocking effect in both cases.

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• Health & Medical Sciences (AREA)
• Public Health (AREA)
• Storage Of Web-Like Or Filamentary Materials (AREA)
• Braking Arrangements (AREA)

Applications Claiming Priority (2)

Publications (2)

Family

ID=37907713

Family Applications (1)

Country Status (6)

Families Citing this family (4)

Family Cites Families (6)

• 2006
  • 2006-08-28 FR FR0653485A patent/FR2905061B1/fr not_active Expired - Fee Related
• 2007
  • 2007-08-21 EP EP07823734A patent/EP2056703B1/de not_active Not-in-force
  • 2007-08-21 ES ES07823734T patent/ES2390500T3/es active Active
  • 2007-08-21 US US12/438,171 patent/US8056459B2/en not_active Expired - Fee Related
  • 2007-08-21 CN CN2007800321138A patent/CN101511246B/zh not_active Expired - Fee Related
  • 2007-08-21 WO PCT/FR2007/051834 patent/WO2008025923A2/fr not_active Ceased

Non-Patent Citations (1)

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