WO2002062186A1 - Hospital mattress protector with improved workability characteristics - Google Patents
Hospital mattress protector with improved workability characteristics Download PDFInfo
- Publication number
- WO2002062186A1 WO2002062186A1 PCT/EP2002/000961 EP0200961W WO02062186A1 WO 2002062186 A1 WO2002062186 A1 WO 2002062186A1 EP 0200961 W EP0200961 W EP 0200961W WO 02062186 A1 WO02062186 A1 WO 02062186A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bellows
- portions
- bellows portions
- forming
- long side
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
- A47C27/002—Mattress or cushion tickings or covers
Definitions
- the present invention relates to a hospital mattress protector with improved workability characteristics. More particularly, the invention relates to a hospital mattress protector whose shape allows easy workability in the machine and simplicity and greater folding stability.
- mattress protectors i.e., protective layers arranged over mattresses in order to prevent the mattress from being soiled accidentally.
- Such hospital mattress protectors are generally constituted by a sheet characterized by a thin film of plastics, which is applied over the mattress that it is meant to protect and is therefore substantially as long as the mattress and slightly narrower.
- Said mattress protectors are manufactured by means of appropriately provided apparatuses, composed of an extruder, into which the plastics to be extruded is introduced, and an extrusion head, from which a plastics film exits and is then wound on a winding unit.
- the plastic film is produced by the machine as a tubular element, which is then cut, at winding time, by an appropriately provided blade, which produces a cut substantially at the center of one of the long sides of the tubular element, so that the tubular element can be opened subsequently and then be spread onto the mattress.
- the tubular element is folded, once extruded, by forming two lateral bellows portions, which are arranged at the shorter sides of the tubular element and thus allow to obtain, at the exit of the apparatus, a plastic film substantially constituted by two opposite sides having the same dimensions, which are mutually connected by a bellows portion for each end.
- the bellows portion is small, i.e., it folds toward the center of the tubular element to a limited extent.
- the thickness of the regions of the tubular element, that are characterized by the presence of the bellows portion, is substantially made up by the superimposition of four layers, while the thickness of the regions that are not affected by the bellows portion is made up by the superimposition of only two layers.
- embossing rollers or cylinders apply more pressure at the thicker portions and less pressure at the remaining portions, thus obtaining an uneven embossing on the surface of the mattress protector.
- the aim of the present invention is to provide a hospital mattress protector that has improved characteristics and in which the parts whose thickness is reduced to only two layers are smaller than those obtained with known types of hospital mattress protector.
- an object of the present invention is to provide a hospital mattress protector whose folding is more stable than the folding that can be obtained with known types of hospital mattress protector.
- Another object of the present invention is to provide a hospital mattress protector that is highly reliable, relatively simple to provide and at competitive costs.
- a hospital mattress protector characterized in that it comprises a layer whose ends are folded so as to form a pair of bellows portions, said pair of bellows portions having such an extension as to reach the vicinity of the center of said layer.
- Figure 1 is a perspective view of the hospital mattress protector according to the present invention
- Figure 2 is a perspective view of a first embodiment of an apparatus that can be used to obtain the mattress protector of Figure 1;
- Figure 3 is a perspective view of a second embodiment of the mattress protector according to the present invention.
- Figure 4 is a lateral elevation view of an apparatus for obtaining the mattress protector of Figure 3. Ways to carrying out the Invention
- the mattress protector according to the present invention in a first embodiment generally designated by the reference numeral 1, comprises a tubular element formed by two mutually opposite lateral flat portions 2 and 3 which are mutually joined by two lateral bellows portions 4 and 5.
- the particularity of the invention consists in the bellows portions 4 and 5 have such a receding extension as to substantially reach the vicinity of the midpoint of the tubular element, i.e., the central point or line of the two upper and lower sides 2 and 3 of the mattress protector.
- the increase in the dimensions of the bellows portions 4 and 5 has the advantage of increasing the region of the tubular element 1 in which the overall thickness of the tubular element is the sum of the thickness of four layers, i.e., the two upper and lower layers and the two layers that form the bellows portion.
- embossing provided on this tubular element by way of appropriate embossing cylinders or rollers is substantially uniform over the entire surface of the mattress protector 1, since the thickness that the embossing cylinders encounter is substantially constant along the entire extension of the tubular element, except for a very small region at the central portion of the tubular element.
- the mattress protector according to the invention that leaves the apparatus described in detail hereinafter is provided so that due to the greater extension of the bellows portions 4 and 5 with respect to the known art, in order to achieve a length of the mattress protector equal to the length of the known type, it is sufficient to use the upper layer 2 and the extension of the bellows portions 4 and 5, discarding the lower side or layer 3, which can thus be cut at its ends for connection to the bellows portions 4 and 5.
- the result in output from the apparatus is a mattress protector provided with a first upper layer 2 and with the two bellows portions arranged at the ends, 4 and 5.
- the lower side 3 can thus be recycled in the apparatus for producing the mattress protector according to the invention.
- FIG 2 illustrates an example of an apparatus that can be used to obtain the mattress protector shown in Figure 1.
- the apparatus generally designated by the reference numeral 10, comprises a hopper 11 into which plastic material is introduced in order to obtain the mattress protector according to the invention.
- the hopper 11 is connected to an extruder 12, which introduces extruded material in a rotating head 13, from which a bubble 14 of film exits; the bubble is then passed through bellows portion forming means 15, which are appropriately formed by two inclined guiding planes 16 and 17 suitable to guide the film that exits from the head 13. Between the inclined guiding planes 16 and 17 there are two forming elements 18 and 19, which are bellows to actually form the bellows portions 4 and 5 of the mattress protector.
- the resulting film designated by the reference numeral 20, is then wound on a pair of winding units 21 and 22 so that the mattress protector formed by the upper side 2 and by the bellows portions 4 and 5 is wound and folded by the winding unit 21 while the winding unit 22 winds up the waste layer 3, which is then recycled in the hopper 11.
- the winding units two blades are provided, which are suitable to produce the lateral cuts required to remove the waste layer 3.
- Figure 3 illustrates a second embodiment of the mattress protector according to the invention, or rather illustrates an intermediate component that can be obtained by means of the apparatus shown in Figure 4 and by means of which it is possible to obtain simultaneously two mattress protectors similar to those shown in Figure 1.
- the intermediate component of Figure 3, generally designated by the reference numeral 25, comprises two mattress protectors 1, similar to the ones shown in Figure 1, obtained by cutting the intermediate component 25 at regions 26 and 27. In this manner, two mattress protectors similar to those shown in Figure 1 are obtained.
- the difference between the apparatus of Figure 4 and the apparatus of Figure 2 is concentrated in the means for forming the bellows portion, which in this case are designated by the reference numeral 15'.
- the means 15' therefore comprise, in addition to the lateral guides 16 and
- the production of the intermediate component 25 allows to have no production waste and to obtain two mattress protectors 1 in a single pass of the apparatus, thus speeding up production.
- the mattress protector according to the present invention fully achieves the intended aim and objects, since it allows better workability in the machine, it is more suitable to maintain a stable folding, and can also be produced with reduced production times.
- the mattress protector thus conceived is susceptible of numerous modifications and variations, all of which are within the scope of the appended claims.
- the mattress protector can also be produced discontinuously, albeit with the same described structure.
- all the details may be replaced with other technically equivalent elements.
Landscapes
- Mattresses And Other Support Structures For Chairs And Beds (AREA)
- Materials For Medical Uses (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02710054A EP1355556A1 (en) | 2001-02-02 | 2002-01-30 | Hospital mattress protector with improved workability characteristics |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI2001A000214 | 2001-02-02 | ||
ITMI20010214 ITMI20010214A1 (en) | 2001-02-02 | 2001-02-02 | HOSPITAL CROSS STRUCTURE WITH IMPROVED WORKABILITY CHARACTERISTICS |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002062186A1 true WO2002062186A1 (en) | 2002-08-15 |
Family
ID=11446731
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2002/000961 WO2002062186A1 (en) | 2001-02-02 | 2002-01-30 | Hospital mattress protector with improved workability characteristics |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1355556A1 (en) |
IT (1) | ITMI20010214A1 (en) |
WO (1) | WO2002062186A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITCR20080025A1 (en) * | 2008-11-24 | 2010-05-25 | In Pack Sl | WORKSHOP SEAT COVER |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3956782A (en) * | 1974-09-19 | 1976-05-18 | Morrison Medical Products Company | Contour mattress cover |
GB2007589A (en) * | 1977-11-08 | 1979-05-23 | Duni Bila Ab | A Method of Manufacturing a Protective Sheet and a Sheet When Made by said Method |
US4349123A (en) * | 1980-03-12 | 1982-09-14 | Chiang Keh-Yeu | Garbage can with a packaged and folded plastic bags supplier |
-
2001
- 2001-02-02 IT ITMI20010214 patent/ITMI20010214A1/en unknown
-
2002
- 2002-01-30 WO PCT/EP2002/000961 patent/WO2002062186A1/en not_active Application Discontinuation
- 2002-01-30 EP EP02710054A patent/EP1355556A1/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3956782A (en) * | 1974-09-19 | 1976-05-18 | Morrison Medical Products Company | Contour mattress cover |
GB2007589A (en) * | 1977-11-08 | 1979-05-23 | Duni Bila Ab | A Method of Manufacturing a Protective Sheet and a Sheet When Made by said Method |
US4349123A (en) * | 1980-03-12 | 1982-09-14 | Chiang Keh-Yeu | Garbage can with a packaged and folded plastic bags supplier |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITCR20080025A1 (en) * | 2008-11-24 | 2010-05-25 | In Pack Sl | WORKSHOP SEAT COVER |
EP2189331A1 (en) * | 2008-11-24 | 2010-05-26 | A & B Sas | Seat cover for vehicle repair shop |
Also Published As
Publication number | Publication date |
---|---|
EP1355556A1 (en) | 2003-10-29 |
ITMI20010214A1 (en) | 2002-08-02 |
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