BE1001343A3

BE1001343A3 - Portable dispenser for rolls of film - has tension pad threaded at lower end, to maintain uniform tension over full width of film

Info

Publication number: BE1001343A3
Application number: BE8800050A
Authority: BE
Original assignee: Glory Formosa
Priority date: 1988-01-15
Filing date: 1988-01-15
Publication date: 1989-10-03
Also published as: AU8303187A; AU596256B2

Abstract

A tension pad is threaded at its lower end and has a head engageable against rotation in the recess formed in the upper surface of the pressure member. It is locatable to extend through the passage and the first tube out of the bottom of the base. An adjusting member is normally screwed onto the lower end of the tension rod. A slidable second tube is of a diameter to receive the first tube within its interior together with the pressure member. It has a nut or threaded collar at its upper end and a first threaded coupling member is adapted to be screwed into the threaded collar or nut at the upper end of the second, slidable tube. A second, flanged coupling member is provided which is engageable with the first threaded coupling member. A biassing device is above the second coupling member. Upon rotation of the adjusting member beneath the base, the pressure member and the first tube may be loosened to permit the second tube to be slid freely along the first tube to permit adjustment of the distance between the base and the film-end engaging flanges of the second coupling member.

Description

       

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  J Distributeur servant ä délivrer une feuille d'emballage
La presente invention concerne le domaine des distributeurs tenus à la main, convenant particulièrement pour la délivrance d'une feuille ou d'un film plastique d'emballage et son enroulement sous tension autour d'un objet   pressentant   un volume important. 



   Jusqu'alors il était d'une pratique usuelle d'utiliser une feuille ou enveloppe plastique etirable ou pouvant être tendue pour fixer une pluralité de conteneurs sur une palette. Le distributeur de l'art antérieur le plus classique servant ä délivrer une feuille d'emballage est représenté sur la figure 1   annexee   ä la présente demande et com- 
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 prend une base formant plate-forme 100, une poignee 200 fixée sur cette base et une tige à glissement 100. Pour utiliser ce type de distributeur, comme represent6 sur la figure 2 annexée à la presente demande, on met en place le rouleau 400 de la feuille plastique pouvant être appliquee sous tension, sur la tige glissement 300 puis on le fait tourner.

   Lorsqu'on saisit le distributeur et qu'on le déplace autour de l'objet, la feuille est délivrée ä partir du rouleau et est   enroulee   autour de l'objet devant être recouvert et protege ce dernier   vis-à-vis   de l'humidité et analogue. 



   Dans le distributeur mentionne ci-dessus servant à delivrer une feuille, la longueur de la tige 300 est fixe et convient par consequent uniquement pour une dimension de feuille pouvant être appliquée à l'état tendu. Bien que cerzains tentatives aient te faites pour améliorer les distributeurs tenus   ä la   main, par exemple dans le brevet US NO   NO 4   102 513, ces tentatives n'ont pas été   entierement   satisfaisantes du point de vue de l'uniformité de l'enroulement, du réglage de la tension, de la simplicité, de la durabilite, de l'équilibre ou de la commodité de manipulation pour différents types d'objets. 



   Un but de la présente invention est de fournir un distributeur simple, durable et aisé utiliser, pour des 

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 :après prise en référence aux dessins annexés, sur lesquels : - la figure   1,   dont il a déjà été fait mention, est une vue en perspective montrant un exemple de distributeur de l'art anterieur, ä l'état entierement assemble ;

   - la figure 2, dont il a déjà été fait mention, illustre le procédé usuel d'utilisation de tels distributeurs servant ä   délivreur   une   feuille ;   - la figure 3 est une vue en perspective montrant une forme de réalisation de la présente invention, ä l'etat complètement   assemble ;   - la figure 4 est une vue en elevation latérale en coupe transversale de la forme de réalisation de l'invention, ä l'état assemblé   ;   et - la figure 5 est une vue en perspective explosee montrant les composants de l'invention. 



   En se référant aux figures 3, 4 et 5, on y voit représenté un distributeur servant à delivrer une feuille etirable ou pouvant être mise en tension, qui comporte une base rigide en forme de plate-forme 1 qui, dans la vue en plan, possède une partie d'extrémité large et dont la largeur diminue progressivement en direction d'une partie d'extrémité retrecie, dont les extrémités sont de forme arrondie semicirculaires. La base 1 est formee par une plaque   superieure   15 et par une plaque inférieure 16, dont le bord   exterieur   est realise de manière ä former une rainure de montage 160.

   Le bord inferieur 150 de la surface du pourtour de la plaque   superieure   15 est replie vers le haut de manière   ä   former un rebord qui s'insure dans la rainure 160, ce qui permet de reunir fermement l'une ä l'autre la plaque supérieure 15 et la plaque inférieure 16 Au niveau de chacune des extrémites de la plaque supérieure 15 se trouve menage un trou ou une ouverture 151, 152. Des supports taraudes 17, 18 peuvent être   inseres   respectivement dans chacun des trous   151, 152.   La plaque   inferieure   16 comporte, au niveau de son extrémité la plus large, une cavité 161 s'ouvrant vers le bas et com- 

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 portant une ouverture 162 coaxiale au trou 151 menage dans la plaque supérieure 15.

   Une poignée de forme tubulaire 11 est vissée dans le support taraude 17 au niveau de l'extremite la plus retrecie de la base   1,   l'extrémité inférieure de la   poignee   11 étant munie d'un filetage 111 et d'un écrou de blocage 171 destine ä s'emmancher sur la poignée et s'appliquer contre le support taraudé de manière à maintenir la poignee 11 en position fixe sur la base 1. La plaque superieure 15 comporte, au niveau de l'extrémiste la plus large de la base   1,   un support   surélevé   12 destiné ä supporter le rouleau formé de la feuille.

   Au support 12 du rouleau forme de la feuille se trouvent associes des moyens de réglage qui incluent un tube allongé 2 fixé sur le support 12 au moyen d'un filetage   menage   sur l'extrémité inférieure du tube 2 et destiné à   etre   vissé dans le support taraudé   18,   et un écrou de blocage 181 emmanché sur le tube 2 s'appliquant contre le support taraude 18. L'extremite superieure du tube allongé 2 est decoupée selon un certain angle 21 de manière à s'adapter à une tubulure de compression 3 presentant un angle complementaire au niveau de son extremite inferieure.

   Sur la surface superieure de la tubulure de compression 3 se trouve ménage un   evidement   non arrondi 31 qui est coaxial à un trou 30 servant à recevoir un tirant ou un boulon 33 dont l'extremite inferieure est filetée et qui comporte une tête 31a possédant la même forme que   l'evidement   31 mentionné précédemment. Le boulon 33 s'etend à l'intérieur du trou 30 et du tube allonge 2 de maniere à   penetreer   dans le trou 162 ménagé dans la cavite 161 de la plaque inferieure 16 ; on visse alors un bouton de reglage 34 sur le filetage situé au niveau de l'extrémiste inférieure du boulon 33.

   Un tube coulissant 4, qui possede un diametre interieur   superieur   aux diamètres exterieurs du tube 2 et de la tubulure de compression 3, est emmanche de façon télescopique sur ce tube 2 et sur cette tubulure de compression 3. Un écrou 41 est disposé l'interieur de l'extremite superieure du tube coulissant 4. Une tige   filetee   

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 5 dont l'extrémité   inferieure   porte le filetage 5a, est vissée 
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 eure de la tige dn9-lecrou. fileté 5 se trouve disposée une göupille 51 qui est repous-    T"41. De meme a l'extr6mit6 inf6rieure de la tigesée     ä   travers   l'extrémité   de cette tige.

   L'extrémité   supe-   rieure de la tige filetee 5 possède un couple de courtessections cylindriques   52, 53, la   section supérieure 53 étant inserée dans un tube de support 54 qui est lui-même   inséré   dans la poignée 50. Au-dessous de la poignée 50 se trouvent disposes des   boltiers   de montage télescopiques 61, 62 munis d'ouvertures opposées l'une à l'autre. Le boltier   superieur   61 est soudé au tube de support 54 et est emmanche de façon telscopique sur le boitier inferieur 62, comme représenté sur la figure 4. Un ressort 6 est inséré entre les boltiers de montage 61, 62 et est retenu par ces derniers. Un organe en forme de roue ou de plaque 8 est monté sur la courte section cylindrique inférieure 52 de la tige filetée 5.

   L'organe en forme de roue 8 est plat, sa partie centrale possédant une partie saillante   tournee   vers le bas et servant ä serrer le rouleau 9 de la feuille pouvant être appliquée à   l'état   tendu sur la base 1. Au centre de l'organe en forme de roue 8 se trouve ménagé un trou 80 permettant le passage d'un axe et entre ce trou 80 et le bord   exterieur   de l'organe en forme de roue 8 se trouve ménagée une ouverture allongée 81 dont la largeur est supérieure au diamètre de la tige filetée 5. 



   Comme cela est représenté sur les figures 3 et 4, lors de l'utilisation du distributeur conforme ä la präsente invention, on abaisse l'organe en forme de roue 8 de manière   Åa     l'ecarter   de la courte section cylindrique inférieure 52 de la tige filetée, que l'on retire alors en la faisant passer ä travers l'ouverture allongée 81.

   Ensuite, on fait tourner le bouton de réglage 34 situé sur la plaque inférieure 16 de la base   1,   de manier à libérer la tubulure de compression 3 située à l'intérieur du tube allongé 2, ce qui permet de regler le tube coulissant 4 à la longueur d6si-   ree.   Alors, on fait tourner le bouton de réglage   34 en   sens 

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 opposé, auquel cas le boulon 33 rétracte la tubulure de compression 3, ce qui entraine une deformation par rapport au tube 2, et la tubulure de compression 3 s'applique en compression contre la paroi intérieure du tube coulissant 4, de maniere à fixer ce tube coulissant 4 dans la position désirée. 



  Puis on place le rouleau 9 formé de la feuille pouvant être appliquée sous tension, sur le distributeur en le faisant glisser sur la poignée. Une fois que le rouleau 9 a été emman-   che   sur le tube coulissant 4 de manière à être en appui sur la base   1,   on met en place l'organe en forme de roue 8 sur la tige filetée 5. Etant donné que le boitier de montage 62 est repoussé vers le bas en direction de l'organe en forme de roue 8 par le ressort 6, l'organe en forme de roue 8 est 
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 appliqué contre l'extramitä du rouleau 9. En faisant tourner la poignée 50, on règle de façon optimale la tension appliquée ä   l'extremite superieure   du rouleau 9 par la partie inferieure de l'organe en forme de roue 8.

   Lorsque l'utilisateur saisit la poignée 11 et la poignée 50 et deplace le distributeur autour de l'objet (par exemple une pluralité de conteneurs situes sur une palette comme représenté sur la figure   2). l'organe   en forme de roue 8 et le rouleau 9 constitué par la feuille pouvant etre appliquée sous tension sont   entraînes   en rotation et la feuille plastique pouvant être appliquée sous tension est déroulée du rouleau pour envelopper l'objet. 



   Dans le distributeur mentionné ci-dessus servant à   délivreur   une feuille appliquée sous tension, tant doné que le tube 4 peut être réglé dans n'importe quelle   position, 1a   distance entre l'organe en forme de roue 8 et la base 1 est réglable, ce qui permet une adaptation à des rouleaux possedant des largeurs différentes. Une fois que le rouleau forme de la feuille en matiere plastique pouvant être appliquée sous tension a été placé sur la base du distributeur, on peut régler la force de traction appliquée au rouleau en faisant tourner la poignée. Ce distributeur est d'une 

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 constitution simple, peut être aisément réglé et convient pour n'importe quelle largeur de feuille. 
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  Bien que la présente invention ait été décrite avec un certain degré de specificite, on comprendra que la presente description n'est donnée   qu'ä   titre d'exemple et que toutes les modifications de details de la structure de l'objet de l'invention entrent dans le cadre de cette   derniers.  



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  J Distributor used to deliver a packaging sheet
The present invention relates to the field of dispensers held by hand, particularly suitable for the delivery of a sheet or a plastic packaging film and its winding under tension around an object sensing a large volume.



   Until then it was a usual practice to use a stretchy or stretchable plastic sheet or envelope to fix a plurality of containers on a pallet. The most conventional dispenser of the prior art for delivering a packaging sheet is shown in Figure 1 appended to this application and com-
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 takes a base forming a platform 100, a handle 200 fixed on this base and a sliding rod 100. To use this type of distributor, as shown in FIG. 2 appended to the present request, the roller 400 is put in place. the plastic sheet can be applied under tension, on the sliding rod 300 and then it is rotated.

   When the dispenser is grasped and moved around the object, the sheet is delivered from the roll and is wrapped around the object to be covered and protects it from moisture and the like.



   In the above-mentioned dispenser used to deliver a sheet, the length of the rod 300 is fixed and is therefore suitable only for a sheet size which can be applied in the stretched state. Although some attempts have been made to improve hand-held dispensers, for example in US Patent No. NO 4 102 513, these attempts have not been entirely satisfactory from the point of view of uniformity of winding, adjustment of tension, simplicity, durability, balance or ease of handling for different types of objects.



   An object of the present invention is to provide a simple, durable and easy-to-use dispenser for

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 ORIGINAL PATENT INCOMPLETE OR BAD COUNTRY: - DOC - jA --- MISSING FRONTAGE --- NO DRAWINGS -. MISSING PAGE --- BAD ORIGINAL --- DIVERSE -

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 : after reference to the accompanying drawings, in which: - Figure 1, which has already been mentioned, is a perspective view showing an example of a distributor of the prior art, in the fully assembled state;

   - Figure 2, which has already been mentioned, illustrates the usual method of using such dispensers for issuing a sheet; - Figure 3 is a perspective view showing an embodiment of the present invention, in the fully assembled state; - Figure 4 is a side elevational view in cross section of the embodiment of the invention, in the assembled state; and - Figure 5 is an exploded perspective view showing the components of the invention.



   Referring to Figures 3, 4 and 5, there is shown a dispenser for delivering a stretch sheet or can be tensioned, which has a rigid base in the form of platform 1 which, in the plan view, has a wide end part, the width of which progressively decreases towards a narrowed end part, the ends of which are of semi-circular rounded shape. The base 1 is formed by an upper plate 15 and by a lower plate 16, the outer edge of which is made so as to form a mounting groove 160.

   The lower edge 150 of the surface of the periphery of the upper plate 15 is folded upwards so as to form a rim which fits into the groove 160, which allows the upper plate to be firmly joined to each other. 15 and the lower plate 16 At each end of the upper plate 15 is a hole or an opening 151, 152. Tapped supports 17, 18 can be inserted respectively in each of the holes 151, 152. The lower plate 16 comprises, at its widest end, a cavity 161 opening downwards and comprising

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 carrying an opening 162 coaxial with the hole 151 menage in the upper plate 15.

   A tubular handle 11 is screwed into the tap holder 17 at the most narrowed end of the base 1, the lower end of the handle 11 being provided with a thread 111 and a locking nut 171 intended to be fitted onto the handle and applied against the threaded support so as to keep the handle 11 in a fixed position on the base 1. The upper plate 15 comprises, at the widest end of the base 1 , a raised support 12 for supporting the roll formed from the sheet.

   The support 12 of the sheet-shaped roller are associated with adjustment means which include an elongated tube 2 fixed on the support 12 by means of a thread on the lower end of the tube 2 and intended to be screwed into the support tapped 18, and a locking nut 181 fitted on the tube 2 pressing against the tap support 18. The upper end of the elongated tube 2 is cut at an angle 21 so as to adapt to a compression pipe 3 having a complementary angle at its lower end.

   On the upper surface of the compression tube 3 is housed an unrounded recess 31 which is coaxial with a hole 30 serving to receive a tie rod or a bolt 33 whose lower end is threaded and which comprises a head 31a having the same form as the recess 31 mentioned previously. The bolt 33 extends inside the hole 30 and the elongated tube 2 so as to penetrate into the hole 162 formed in the cavity 161 of the lower plate 16; then an adjustment button 34 is screwed onto the thread located at the level of the lower end of the bolt 33.

   A sliding tube 4, which has an inside diameter greater than the outside diameters of the tube 2 and of the compression tube 3, is fitted telescopically onto this tube 2 and onto this compression tube 3. A nut 41 is placed inside of the upper end of the sliding tube 4. A threaded rod

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 5, the lower end of which carries the thread 5a, is screwed
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 dn9-lecrou stem. Threaded 5 is disposed a pin 51 which is pushed back T "41. Likewise at the lower end of the rod through the end of this rod.

   The upper end of the threaded rod 5 has a couple of short cylindrical sections 52, 53, the upper section 53 being inserted in a support tube 54 which is itself inserted in the handle 50. Below the handle 50 are arranged telescopic mounting boltiers 61, 62 provided with openings opposite one another. The upper bolt 61 is welded to the support tube 54 and is fitted in a telescopic manner to the lower box 62, as shown in FIG. 4. A spring 6 is inserted between the mounting bolts 61, 62 and is retained by the latter. A wheel or plate-shaped member 8 is mounted on the short lower cylindrical section 52 of the threaded rod 5.

   The wheel-shaped member 8 is flat, its central part having a projecting part facing downwards and serving to clamp the roll 9 of the sheet which can be applied in the stretched state to the base 1. In the center of the wheel-shaped member 8 is provided a hole 80 allowing the passage of an axis and between this hole 80 and the outer edge of the wheel-shaped member 8 is formed an elongated opening 81 whose width is greater than diameter of the threaded rod 5.



   As shown in Figures 3 and 4, when using the dispenser according to the present invention, the wheel-shaped member 8 is lowered so as to move it away from the short lower cylindrical section 52 of the rod threaded, which is then removed by passing it through the elongated opening 81.

   Then, the adjustment knob 34 located on the lower plate 16 of the base 1 is rotated, so as to release the compression tubing 3 located inside the elongated tube 2, which makes it possible to adjust the sliding tube 4 to the desired length. So, we turn the adjustment knob 34 in the direction

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 opposite, in which case the bolt 33 retracts the compression tubing 3, which causes a deformation with respect to the tube 2, and the compression tubing 3 is applied in compression against the inner wall of the sliding tube 4, so as to fix this sliding tube 4 in the desired position.



  Then the roller 9 formed from the sheet which can be applied under tension is placed on the dispenser by sliding it over the handle. Once the roller 9 has been fitted on the sliding tube 4 so as to be supported on the base 1, the wheel-shaped member 8 is put in place on the threaded rod 5. Since the housing mounting 62 is pushed down towards the wheel-shaped member 8 by the spring 6, the wheel-shaped member 8 is
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 applied against the extremity of the roller 9. By turning the handle 50, the tension applied to the upper end of the roller 9 by the lower part of the wheel-shaped member 8 is optimally adjusted.

   When the user grasps the handle 11 and the handle 50 and moves the dispenser around the object (for example a plurality of containers situated on a pallet as shown in FIG. 2). the wheel-shaped member 8 and the roller 9 consisting of the sheet that can be applied under tension are rotated and the plastic sheet that can be applied under tension is unwound from the roller to wrap the object.



   In the dispenser mentioned above serving to deliver a sheet applied under tension, as long as the tube 4 can be adjusted in any position, the distance between the wheel-shaped member 8 and the base 1 is adjustable, which allows adaptation to rollers with different widths. Once the roller forms a sheet of plastic material which can be applied under tension has been placed on the base of the dispenser, the tensile force applied to the roller can be adjusted by rotating the handle. This distributor is of

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 simple construction, can be easily adjusted and suitable for any sheet width.
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  Although the present invention has been described with a certain degree of specificity, it will be understood that the present description is given only by way of example and that all modifications of details of the structure of the subject of the invention are part of the latter.

Claims

CLAIMS 1. Dispenser for delivering a sheet, particularly suitable for wrapping a plastic sheet of packaging under tension around an object of large volume, characterized in that it comprises a rigid base (1), the shape of which shrinks from a wide part up to a narrow part, a handle (11) which extends from said narrow part, adjustable means (2, 12, 18, 181) serving to support the roll of the sheet, which stretch from said wide part, and elongate corner locking means (2, 3, 33.

34) mounted telescopically inside an outer tube (4) and cooperating with said outer tube to fix the latter at a desired adjustment height, and tensioning means (50, 6, 61, 62 , 8) fixed to said outer tube (4) at its upper extremity and cooperating with said base so as to apply tension across the entire width of the roll of the packaging sheet.

2. Dispenser according to claim 1, characterized in that the wedge blocking means (2, 3, 33, 34) comprise an elongated hollow tube (2) fixed to said base (1) by blocking means ( 181) and comprising an upper end cut at a certain angle (21), a compression tube (3) whose lower end forms an angle complementary to the previous one and which cooperates with said tube, a bolt (33) extending towards the bottom through said compression tubing and said tube and having a length sufficient to reach said base (1), and a button (34) screwed on said bolt through said base, from the underside of the latter,

which has the effect that the compression force is applied to said compression tube when tightening said button.

3. Dispenser according to claim 1, ca. sits in that the tensioning means (50, 6, 61, 62, 8) comprise a handle (50) having threaded fixing means (5) meshing with a nut (41) inserted in the former - <Desc / Clms Page number 9> upper end of said tube (2) and holding between them spring solicitation means (10, 61, 62), which push a plate (8) towards said base (1) so that it is. abutting against one end of the roller that it supports.

4. Dispenser according to claim 3, characterized in that said spring biasing means (6, 61, 62) comprise a couple of telescopic cup-shaped mounting boxes (61, 62) enclosing between them a helical spring (6 ) and arranged between said handle (50) and said plate (8), said spring biasing means and said plate enclosing the threaded fixing means (5) of said handle.

5. Dispenser according to claim 4, characterized in that said plate (8) is convex in the direction of the base (1) and has a central hole (80) housing the EMI9.1 threaded fixing means (5) of the handle (5), and an elongated opening (81) located hole and the eastern edge of said plate, the width of this opening being greater than the diameter of the threaded fixing means (5) .

6. Distributor according to claim 5, characterized in that the threaded fixing means (5) comprise a rod (5a) having a threaded lower end and penetrating into said nut (41) located in said outer tube (4), and a cylindrical upper end (52, 53) penetrating into a support tube (54) located inside said handle, said threaded end having a diameter less than that of said cylindrical end.

7. Dispenser for delivering a sheet, of the type capable of carrying a roll of a plastic packaging sheet applied under tension, characterized in that it comprises a rigid base (1) comprising a handle (11) and means adjustable (2, 4, 12, 18, 181) for supporting the roller, the handle and said means extending from opposite ends on the same side of said base, means for adjusting <Desc / Clms Page number 10> ge (33, 34) forming part of said roller support means so as to maintain the latter in a desired deployed state and comprising a hollow tube (2) fixed to the base (1), a compression tube (3)

cooperating with the upper end of said tube, an elongated bolt (33) whose head is housed in said compression pipe and which extends through said tube to said base and is threaded at its end, and a button (34) screwed to said bolt (33) at the underside of said base and cooperating with said bolt (33) and said tube (2) to exert a compression deformation force on said compression pipe when the button is screwed onto the bolt, an external support tube (4) extending over said adjustment means and against which the deformation of said compression pipe acts, and tensioning means (50, 6.61.62)

fixed to the upper end of said outer support tube and comprising a handle (50), spring biasing means (6, 61, 62) and a circular plate (8), said spring biasing means being housed between and cooperating with said handle and said plate so as to repel the latter by said base, the plate being removable, which facilitates the replacement of rolls of sheets.

8. Dispenser according to claim 7, characterized in that the leveling of the roller support means is obtained by rotating the adjustment button (34) located under the base so as to eliminate the compression force applied to the compression tubing (3), which allows the latter to disengage from the inner surface of the outer tube, by sliding the outer tube and the associated tensioning means above the adjustment means and by moving them apart or closer to them. the base so as to allow the mounting of rolls of wider or narrower sheets, and by pressing, when the desired position is reached, the leveling button (34)

of mania- <Desc / Clms Page number 11> Re Apply again a compressive force to the compression tubing so that the latter deforms and achieves a wedge blocking against the inner surface of the outer tube.

9. A dispenser according to claim 7, characterized in that a tension is applied in an adjustable manner over the entire width of a roll of a stretchable plastic sheet, by bringing the handle (50) closer or apart from the base (1), the handle (50) and the associated tensioning means (50,5,41,6,61,62,8) being fixed by screwing to the upper end of the outer tube (4) by a bolt-shaped member (5), which has a cylindrical end (52,53) inserted and retained by a support tube (54) housed in said handle (5) and a threaded end of reduced diameter eooperating with a nut ( 41) inserted into the upper end of the outer tube (4), which has the effect that the application of the handle (50)

and therefore the plate (8) against the roller causes compression of the spring biasing means (6) and increases their clamping tension.