EP0337914A1 - A continuous paper and the like delivery mechanism - Google Patents
A continuous paper and the like delivery mechanism Download PDFInfo
- Publication number
- EP0337914A1 EP0337914A1 EP89500040A EP89500040A EP0337914A1 EP 0337914 A1 EP0337914 A1 EP 0337914A1 EP 89500040 A EP89500040 A EP 89500040A EP 89500040 A EP89500040 A EP 89500040A EP 0337914 A1 EP0337914 A1 EP 0337914A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- paper
- sprockets
- shaft
- band
- rollers
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
- A47K10/00—Body-drying implements; Toilet paper; Holders therefor
- A47K10/24—Towel dispensers, e.g. for piled-up or folded textile towels; Toilet-paper dispensers; Dispensers for piled-up or folded textile towels provided or not with devices for taking-up soiled towels as far as not mechanically driven
- 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
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
- A47K10/00—Body-drying implements; Toilet paper; Holders therefor
- A47K10/24—Towel dispensers, e.g. for piled-up or folded textile towels; Toilet-paper dispensers; Dispensers for piled-up or folded textile towels provided or not with devices for taking-up soiled towels as far as not mechanically driven
- 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
Definitions
- the present invention relates to mechanisms for delivering pieces of paper or the like material, which are severed from a continuous source of continuous paper band, such as those used, for example, for supplying paper towels for hand drying or cleaning purposes.
- Mechanisms for delivering pieces of continuous or band paper comprising a pair of mutually tangent pressure rollers are well known, wherein a first one of the said rollers is mounted rotating about a fixed axis while the other, second roller, is mounted on an oscillating frame which is spring biased against the first roller, the end of a paper band issuing from a bobbin being caught between both rollers, the mechanism further comprising a locking device associated to the shaft of one of the rollers and restricting the length of paper which is delivered each time that a pull is applied to the paper band end, a timing device holding the mechanism locked during a restricted period, and a device operating one of the rollers once a paper band length has been withdrawn, to eject a short band length to make its grasping easier, the ensemble being located within a box provided with a paper outlet opening.
- a mechanism of the above features makes the subject of the Spanish Utility Model N o 290 203 of which the applicant is the owner.
- the device automatically supplying a short paper length once a user has taken out the band and detached a length of it corresponding to a towel or the like dose acts directly upon the shaft of one of the band drawing rollers by means of a cam biased by a spring which is released under the control of a timing system and which is loaded through a reducing transmission connected to the shaft of the said roller.
- a cam biased by a spring which is released under the control of a timing system and which is loaded through a reducing transmission connected to the shaft of the said roller.
- the triggering of the mechanism supplying the short paper length operates in two steps with a short time period between these latter, which may induce the user to apply a pull on the paper band in order to obtain a new dose, in the wrong timing thus causing the mechanism to become blocked.
- the device for restricting the length of the delivered paper had provision for delivering paper pieces of different lengths according to the needs of the user.
- the device for cutting the pulled paper band can also be subject of improvement with a view of simplifying its conformation though with no loss in efficiency.
- the present invention have been devised to provide higher performances of the mechanism.
- the spring loading cam of the ejector device for delivering the short paper length when the mechanism has been unlocked is mounted fixed on the shaft of a set of sprockets having different diameters and adapted to be selectively engaged by a set of different diameter sprockets secured to the shaft of one of the paper band drawing rollers.
- the ejector device and the timer winding device which are of a common construction, are mounted on the same shaft of the set of sprockets selectively meshing with the sprockets mounted in a position which is displaceable at will on the shaft of one of the paper band drawing rollers.
- the oscillating support carrying mounted thereon the movable roller is formed with an arcuate gutter or ramp located immediately under the opening through which the paper band coming from the supply bobbin issues, the said gutter or ramp receiving the engagement of one end of springs having their opposite ends anchored in fixed points of the support structure of the mechanism, thus forcing the supported roller to rest onto the other roller.
- the border of the paper exit opening formed in the enclosure containing the mechanism has a cutting edge, which can be toothed, for cutting the withdrawn paper band.
- the continuous paper delivery mechanism consists, in the drawings, of two rollers 1,2 trapping a paper band 3 coming from a bobbin 4 located within a container 5, the bottom of which is shaped as a funnel 6, according to a known embodiment.
- the roller 1 is mounted on an oscillating support 7 provided with wings 8 which are articulated about a shaft 9 mounted on fixed lugs 10.
- This oscillating support 8 is biased by springs 11 having one end anchored to the fixed lugs 10 and the opposite end resting upon the back of an arcuate gutter or ramp 12 extending upwards of the support, thus forming a guide for the paper band 3 at the outlet of this latter from the funnel 6 (Fig. 3).
- a conventional escapement device formed of a sprocket 13 against which a tooth 14 impinges under the biasing of a spring 15 to prevent the back motion of the roller 2, is mounted at one end of the shaft 2a of the said roller 2.
- the opposite end of the shaft 2a has mounted thereon two sprockets 16,17 having different diameters and adapted to mesh selectively and alternatively with two sprockets 18,19 which are fast with a shaft 20 mounted for rotation on a support 21.
- the same shaft 20 has secured thereon a cam 22 with a spring 23 constituting the automatic feed device of the shaft 2a for the delivery of a short run or length of the band 3.
- This delivery device is associated, according to a known embodiment, to a timer device formed of two mutually faced suction cups 24,25 of which the cup 24 can be displaced by a movable arm 26 in turn operated by a cam 27 joined to the shaft 20 of the sprockets 18,19.
- the described mechanism is housed in a pan 28 having an opening 29 for the outlet of the band 3a and formed with a toothed wing 30 for severing the delivered band.
- toothed cutting edge 30 instead of a cutter blade joined by conventional means to the structure which the mechanism is secured upon, for severing the delivered band run 3a.
- This cutting edge 30 may be obtained directly integral with the pan 28, or by inserting on this latter a stiffer part, either of plastics or metallic material.
Landscapes
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Replacement Of Web Rolls (AREA)
- Paper (AREA)
- Advancing Webs (AREA)
- Telephone Function (AREA)
- Making Paper Articles (AREA)
Abstract
Description
- The present invention relates to mechanisms for delivering pieces of paper or the like material, which are severed from a continuous source of continuous paper band, such as those used, for example, for supplying paper towels for hand drying or cleaning purposes.
- Mechanisms for delivering pieces of continuous or band paper, comprising a pair of mutually tangent pressure rollers are well known, wherein a first one of the said rollers is mounted rotating about a fixed axis while the other, second roller, is mounted on an oscillating frame which is spring biased against the first roller, the end of a paper band issuing from a bobbin being caught between both rollers, the mechanism further comprising a locking device associated to the shaft of one of the rollers and restricting the length of paper which is delivered each time that a pull is applied to the paper band end, a timing device holding the mechanism locked during a restricted period, and a device operating one of the rollers once a paper band length has been withdrawn, to eject a short band length to make its grasping easier, the ensemble being located within a box provided with a paper outlet opening.
- A mechanism of the above features makes the subject of the Spanish Utility Model Nº 290 203 of which the applicant is the owner.
- The practice has shown that some aspects of this kind of delivery mechanisms are subject to improvement.
- For example, the device automatically supplying a short paper length once a user has taken out the band and detached a length of it corresponding to a towel or the like dose, acts directly upon the shaft of one of the band drawing rollers by means of a cam biased by a spring which is released under the control of a timing system and which is loaded through a reducing transmission connected to the shaft of the said roller. The fact that the device for delivering the short band length acts directly upon the shaft of the roller, and the timer winding mechanism acts through a reducing transmission creates a lack of timing of the number of turns which is necessary to place the winding mechanism in working position. Consequently, the triggering of the mechanism supplying the short paper length operates in two steps with a short time period between these latter, which may induce the user to apply a pull on the paper band in order to obtain a new dose, in the wrong timing thus causing the mechanism to become blocked.
- In other aspects, it would be advisable that the device for restricting the length of the delivered paper had provision for delivering paper pieces of different lengths according to the needs of the user.
- The device for cutting the pulled paper band can also be subject of improvement with a view of simplifying its conformation though with no loss in efficiency.
- According to the above feasibilities, the present invention have been devised to provide higher performances of the mechanism.
- According to the present invention, the spring loading cam of the ejector device for delivering the short paper length when the mechanism has been unlocked, is mounted fixed on the shaft of a set of sprockets having different diameters and adapted to be selectively engaged by a set of different diameter sprockets secured to the shaft of one of the paper band drawing rollers.
- To advantage, the ejector device and the timer winding device, which are of a common construction, are mounted on the same shaft of the set of sprockets selectively meshing with the sprockets mounted in a position which is displaceable at will on the shaft of one of the paper band drawing rollers.
- In a preferred embodiment, the oscillating support carrying mounted thereon the movable roller is formed with an arcuate gutter or ramp located immediately under the opening through which the paper band coming from the supply bobbin issues, the said gutter or ramp receiving the engagement of one end of springs having their opposite ends anchored in fixed points of the support structure of the mechanism, thus forcing the supported roller to rest onto the other roller.
- Optionally, the border of the paper exit opening formed in the enclosure containing the mechanism, has a cutting edge, which can be toothed, for cutting the withdrawn paper band.
- For a better understanding of the description in the present specification, a set of drawings is enclosed showing, only by way of example, a practical case of embodiment of the mechanism. In the said drawings:
- Figure 1 is a plan view from above the mechanism;
- Figure 2 is a detail, as seen from above, of the sprocket transmission associated with the device which automatically delivers a short paper run, though in a different position as regards the position shown in the previous Figure;
- Figure 3 is a detail in longitudinal section showing the opening through which the paper band coming from the bobbin issues, the two rollers trapping the band, the ramp or gutter of the oscillating support, and the toothed cutting edge located at the paper band issuing mouth, and
- Figure 4 is a detail in side elevation showing the device for delivering the short paper run.
- The continuous paper delivery mechanism according to the invention consists, in the drawings, of two rollers 1,2 trapping a paper band 3 coming from a
bobbin 4 located within a container 5, the bottom of which is shaped as a funnel 6, according to a known embodiment. - The roller 1 is mounted on an oscillating support 7 provided with wings 8 which are articulated about a shaft 9 mounted on fixed lugs 10. This oscillating support 8 is biased by springs 11 having one end anchored to the fixed lugs 10 and the opposite end resting upon the back of an arcuate gutter or
ramp 12 extending upwards of the support, thus forming a guide for the paper band 3 at the outlet of this latter from the funnel 6 (Fig. 3). - A conventional escapement device, formed of a
sprocket 13 against which atooth 14 impinges under the biasing of aspring 15 to prevent the back motion of the roller 2, is mounted at one end of theshaft 2a of the said roller 2. - The opposite end of the
shaft 2a has mounted thereon twosprockets sprockets 18,19 which are fast with ashaft 20 mounted for rotation on asupport 21. Thesame shaft 20 has secured thereon acam 22 with aspring 23 constituting the automatic feed device of theshaft 2a for the delivery of a short run or length of the band 3. This delivery device is associated, according to a known embodiment, to a timer device formed of two mutually facedsuction cups cup 24 can be displaced by amovable arm 26 in turn operated by acam 27 joined to theshaft 20 of thesprockets 18,19. - The described mechanism is housed in a
pan 28 having an opening 29 for the outlet of the band 3a and formed with atoothed wing 30 for severing the delivered band. - From the above description and looking to the drawings, it follows that it is possible to vary the length of the run obtained by pulling out the band 3a, by changing the position of the
sprockets sprockets 18,19 (Fig. 1 and 2). - It is also to underline that, thanks to the relation between the
sprockets same shaft 20 of the set ofsprockets 18,19, it is obtained that thecam 27 drives thearm 26 with a single turn of theshaft 20, to place the timermovable suction cup 24 in the locking position. - Another advantage as regards the known embodiments consists in the arrangement of the springs 11 to act directly upon the
arcuate ramp 12, thus forcing the support 7 to move in order that the roller 1 comes to rest onto the roller 2 for trapping the band 3. - It is to be emphasized the embodying of the
toothed cutting edge 30 instead of a cutter blade joined by conventional means to the structure which the mechanism is secured upon, for severing the delivered band run 3a. Thiscutting edge 30 may be obtained directly integral with thepan 28, or by inserting on this latter a stiffer part, either of plastics or metallic material.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT89500040T ATE86457T1 (en) | 1988-04-11 | 1989-03-30 | FEED MACHINE FOR CONTINUOUS WEB OF PAPER AND SIMILAR. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES8801092A ES2007187A6 (en) | 1988-04-11 | 1988-04-11 | A continuous paper and the like delivery mechanism. |
ES8801092 | 1988-04-11 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0337914A1 true EP0337914A1 (en) | 1989-10-18 |
EP0337914B1 EP0337914B1 (en) | 1993-03-10 |
Family
ID=8255761
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP89500040A Expired - Lifetime EP0337914B1 (en) | 1988-04-11 | 1989-03-30 | A continuous paper and the like delivery mechanism |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0337914B1 (en) |
AT (1) | ATE86457T1 (en) |
DE (1) | DE68905218T2 (en) |
ES (1) | ES2007187A6 (en) |
PT (1) | PT90238B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108523748B (en) * | 2018-04-16 | 2024-02-27 | 朱志超 | Paper box |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2527218B2 (en) * | 1975-06-19 | 1977-09-08 | PWA Papierwerke Waldhof Aschaffen burg AG, 8000 München | TOWEL DISPENSER |
DE2003354B2 (en) * | 1969-01-24 | 1979-07-05 | Georgia-Pacific Corp., Portland, Oreg. (V.St.A.) | Device for peeling off flexible sheet material |
CH635996A5 (en) * | 1979-11-22 | 1983-05-13 | Aa 2 S N C | Automatic dispensing apparatus for material in roll form, particularly tissue paper for drying the hands |
-
1988
- 1988-04-11 ES ES8801092A patent/ES2007187A6/en not_active Expired
-
1989
- 1989-03-30 EP EP89500040A patent/EP0337914B1/en not_active Expired - Lifetime
- 1989-03-30 DE DE8989500040T patent/DE68905218T2/en not_active Expired - Fee Related
- 1989-03-30 AT AT89500040T patent/ATE86457T1/en not_active IP Right Cessation
- 1989-04-10 PT PT90238A patent/PT90238B/en not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2003354B2 (en) * | 1969-01-24 | 1979-07-05 | Georgia-Pacific Corp., Portland, Oreg. (V.St.A.) | Device for peeling off flexible sheet material |
DE2527218B2 (en) * | 1975-06-19 | 1977-09-08 | PWA Papierwerke Waldhof Aschaffen burg AG, 8000 München | TOWEL DISPENSER |
CH635996A5 (en) * | 1979-11-22 | 1983-05-13 | Aa 2 S N C | Automatic dispensing apparatus for material in roll form, particularly tissue paper for drying the hands |
Also Published As
Publication number | Publication date |
---|---|
DE68905218T2 (en) | 1993-09-23 |
PT90238B (en) | 1994-03-31 |
ATE86457T1 (en) | 1993-03-15 |
ES2007187A6 (en) | 1989-06-01 |
EP0337914B1 (en) | 1993-03-10 |
PT90238A (en) | 1989-11-10 |
DE68905218D1 (en) | 1993-04-15 |
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