WO2012057402A1 - Glass cushion roll and method of manufacturing the same - Google Patents

Glass cushion roll and method of manufacturing the same Download PDF

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Publication number
WO2012057402A1
WO2012057402A1 PCT/KR2010/008663 KR2010008663W WO2012057402A1 WO 2012057402 A1 WO2012057402 A1 WO 2012057402A1 KR 2010008663 W KR2010008663 W KR 2010008663W WO 2012057402 A1 WO2012057402 A1 WO 2012057402A1
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WO
WIPO (PCT)
Prior art keywords
tube
iron core
core roller
glass
roller tube
Prior art date
Application number
PCT/KR2010/008663
Other languages
French (fr)
Inventor
Su-Hyun Kim
Original Assignee
Su-Hyun Kim
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Su-Hyun Kim filed Critical Su-Hyun Kim
Publication of WO2012057402A1 publication Critical patent/WO2012057402A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/06—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of natural rubber or synthetic rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a non-planar shape
    • B32B1/08—Tubular products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/18—Layered products comprising a layer of metal comprising iron or steel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/061—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/554—Wear resistance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion

Definitions

  • the present invention relates to a glass cushion roll using a glass tube being environmentally friendly and having surface roughness to be controllable, and a rubber tube having a restoring force, which is used in compressing various functional film members to be transited between a plurality of rolls and in compressing and transiting food, and a method of manufacturing the same.
  • liquid crystal displays are widely used in electronic desk calculators, electronic watches, personal computer word processors, and gauges of motor vehicles and machines, among others.
  • a liquid crystal display typically includes a polarizing plate to visualize an orientation change of liquid crystals.
  • a polarizing plate very greatly influences display characteristics of a liquid crystal display.
  • a polarizing plate generally uses a polarizer (polarizing film), such as a poly vinyl alcohol-based film adsorbed and oriented with a dichroism material, such as iodine or organic dye, which has both sides laminated with a protective film of tri acetyl cellulose.
  • a polarizing plate needs a polarizer which is capable of providing a liquid crystal device with good reproducibility of color and good display characteristics.
  • the aforementioned polarizer is manufactured by carrying a hydrophilic polymer film to a guide roll, immersing it in a swelling bath so as to swell, subsequently, dyeing it by immersing it in a dye bath containing a dichroism material, and elongating it by immersing it in a cross-linking bath.
  • the aforementioned film is manufactured through an elongating process to extend a hard film, a dyeing exhaustion process to add coloring, a nipping process to squeeze, a drying process to clean, remove a foreign substance and water, a coating process to unite a plurality of the films, and a cutting process to cut the film to fit the size of a TV or monitor.
  • a roller used in the aforementioned method of manufacturing the LCD film comprises a pipe formed at a certain length, and a shaft welded to be inserted into both ends of the pipe.
  • the LCD film is manufactured by using a film manufacturing apparatus comprising the roller.
  • the film manufacturing apparatus when a polarizing film is positioned between a fixed roller and a pressurizing roller and a pressuring unit pressurizes the pressurizing roller toward the fixed roller, the film caught between the rollers is pulled by traction from a front end and it is transited, so that the LCD film is manufactured.
  • the restoring force of rubber coated in the fixed roller or the pressurizing roller decreases by high pressure during the process of uniting a plurality of the films or coating the films, thereby leaving a press mark on the films to be manufactured.
  • rollers used for the process of manufacturing the functional film as described above since the outer surfaces of the rollers are coated with various chemical solutions, the portions of the rollers coated with harmful chemical solutions are directly in contact with food upon compressing or transiting the food. Thus, these rollers cannot be used in the process relating to the food manufacturing.
  • the present invention has been made to solve the above problems, and it is an aspect of the present invention to provide a glass cushion roll which is capable of surely compressing a member to be transited between a plurality of glass cushion rolls, regardless of kinds of various members to be transited, such as a film or a food material; which uses, at the outermost glass cushion roll, a glass tube being heat resistant, chemical resistant and abrasion resistant and being environmentally friendly, to be widely used in addition to the compression and transition of food during a manufacturing process; and which uses a rubber tube, together with the glass tube, to expand the rubber tube by high pressure of air injected inside, and a method of manufacturing the same.
  • a glass cushion roll comprising: an iron core roller tube 10 in a hollow tubular shape, with a rotary shaft 11 protruding from both ends of the iron core roller tube 10, the rotary shaft 11 connected to a driving unit to enable power transmission; a glass tube 30 coaxially positioned over an outer surface of the iron core roller tube 10 lengthwise; and an adhesive A applied or attached to the outer surface of the iron core roller tube 10 so that the glass tube 30 is properly secured to the iron core roller tube 10 and the adhesive A functions as a cushion of the glass tube 30.
  • the glass cushion roll further comprises: a rubber tube 20 positioned between the iron core roller tube 10 and the glass tube 30 and installed around the outer surface of the iron core roller tube 10 lengthwise, so as to be properly secured to the iron core roller tube 10 by the adhesive A, wherein an adhesive A is applied or attached to an outer surface of the rubber tube 20 so that the glass tube 30 is coaxially positioned over the outer surface of the rubber tube 20 so as to be properly secured to the rubber tube 20.
  • a glass cushion roll comprising: an iron core roller tube 10 with an air inlet 12, a number of air outlets 13 and an air inflow space 14, wherein the air inlet 12 is perforated at one end of the iron core roller tube 10 and permits air to flow into the air inflow space 14 inside, the air outlets 13 are perforated on the outer surface of the iron core roller tube 10 and permit the air of the air inflow space 14 to discharge outside, and wherein an adhesive A is applied or attached to the both ends of the outer surface of the iron core roller tube 10 and the both ends applied with the adhesive A are formed to protrude outwardly; a rubber tube 20 coaxially positioned over an outer surface of the iron core roller tube 10 lengthwise, wherein the rubber tube 20 is locally secured to the iron core roller tube 10 through the adhesive A at the both ends of the outer surface where the air outlets 13 are not formed, so that an injection space 15 is formed between the iron core roller tube 10 and the rubber tube 20, and an adhesive A is applied or attached to an outer surface of
  • the glass tube 30 is used by controlling surface roughness by polishing its outer surface or by laser engraving a pattern on its outer surface.
  • a method of manufacturing a glass cushion roll comprising: a step S100 of perforating, on an outer surface of an iron core roller tube 10, a number of air outlets 13 operatively connected to the outside; a step S200 of positioning a rubber tube 20 at the outer surface of the iron core roller tube 10 lengthwise and securing the rubber tube 20 to the iron core roller tube 10 by applying or attaching an adhesive A to both ends of the outer surface of the iron core roller tube 10 where the air outlets 13 are not formed; a step S300 of positioning a glass tube 30 outside the rubber tube 20 lengthwise and fitting the glass tube 30 over the rubber tube 20; a step S400 of permitting air into an air inflow space 14 of the iron core roller tube 10 through an air inlet 12 perforated at one side of the iron core roller tube 10, permitting the air flowing in the air inflow space 14 to fill an injection space 15 between the iron core roller tube 10 and the rubber tube 20 through a number of the air outlets 13, and permitting the rubber tube 20 to expand outward
  • a press mark is left on the film as the restoring force of the rubber tube decreases by high pressure during the process of uniting a number of the films or coating the films.
  • a press mark is prevented from leaving on the film.
  • the glass tube is used at the outermost roll, it has good properties being heat resistant, chemical resistant and abrasion resistant and it is semi-permanently used. Also, since the glass tube can be used in the process related to the food manufacturing as well as the functional film manufacturing, it is environmentally friendly.
  • the surface roughness of the glass tube used at the outermost roll is differently controllable depending on a user's embodiment.
  • the glass tube can be used by engraving many patterns on the glass tube, using a processing device, such as a laser.
  • FIG. 1 is a front sectional view illustrating a structure of a glass cushion roll according to a first embodiment of the present invention
  • FIG. 2 is a front sectional view illustrating a structure of a glass cushion roll according to a second embodiment of the present invention
  • FIG. 3 is a perspective view illustrating a structure of a glass cushion roll according to a third embodiment of the present invention.
  • FIG. 4 is an exploded perspective view illustrating the glass cushion roll of FIG. 3;
  • FIG. 5 is a side sectional view illustrating a method of using the glass cushion roll of FIG. 3.
  • FIG. 6 is a flow chart illustrating a method of manufacturing the glass cushion roll according to the present invention.
  • injection space 20 rubber tube
  • the present invention has the characteristics given below:
  • a glass cushion roll 50 and a method of manufacturing the same include an iron core roller tube 10, a rubber tube 20 and a glass tube 30.
  • the glass tube 30 is coaxially positioned over an outer surface of the iron core roller tube 10.
  • An adhesive A is applied or attached between the iron core roller tube 10 and the glass tube 30, so that the iron core roller tube 10 and the glass tube 30 are secured to each other.
  • the adhesive A is able to function as a cushion of the glass tube 30.
  • the iron core roller tube 10 includes a rotary shaft 11.
  • the rotary shaft 11 is positioned to protrude from both ends of the iron core roller tube 10 so that the rotary shaft 11 is connected to a separate driving unit (for example, motor), to enable power transmission.
  • the iron core roller tube 10 has a hollow tubular shape having a ring-shaped cross section.
  • the adhesive A is applied or attached to the whole outer surface of the iron core roller tube 10.
  • the glass tube 30 with both open ends has a hollow tubular shape having a ring-shaped cross section.
  • the glass tube 30 is coaxially positioned over the iron core roller tube 10.
  • the glass tube 30 is properly secured to the iron core roller tube 10 by the adhesive A.
  • a plurality of the glass cushion rolls having the above-described constitution are used so as to rotate together. In this case, when various members P to be transited are compressed and transited between the glass cushion rolls, pressure generates and the pressure is transmitted to the glass tube 30. Then, the adhesive A functions as a cushion of the glass tube 30.
  • the rubber tube 20 is coaxially positioned over an outer surface of the iron core roller tube 10 and the glass tube 30 is coaxially positioned over an outer surface of the rubber tube 20.
  • the iron core roller tube 10 and the rubber tube 20 are properly secured to each other by an adhesive A and the rubber tube 20 and the glass tube 30 are properly secured to each other by an adhesive A'
  • the adhesive A and the adhesive A' are able to function as a cushion of the glass tube 30.
  • the iron core roller tube 10 includes a rotary shaft 11.
  • the rotary shaft 11 is positioned to protrude from both ends of the iron core roller tube 10, so that the rotary shaft 11 is connected to a separate driving unit, to enable power transmission.
  • the iron core roller tube 10 has a hollow tubular shape having a ring-shaped cross section.
  • the adhesive A is applied or attached to the whole outer surface of the iron core roller tube 10.
  • the rubber tube 20 with both open ends has a hollow tubular shape having a ring-shaped cross section.
  • the rubber tube 20 is coaxially positioned over the outer surface of the iron core roller tube 10.
  • the rubber tube 20 coaxially positioned over the iron core roller tube 10 is properly secured to the iron core roller tube 10 by the adhesive A applied or attached to the outer surface of the iron core roller tube 10.
  • the adhesive A is applied or attached to the whole outer surface of the rubber tube 20.
  • the glass tube 30 of this second embodiment with both open ends has a hollow tubular shape having a ring-shaped cross section.
  • the glass tube 30 is coaxially positioned over the outer surface of the rubber tube 20 where the adhesive A is applied, so as to be properly secured to the rubber tube 20.
  • a plurality of the glass cushion rolls constituted in the manner according to the second embodiment is used so as to rotate together. In this case, when various members to be transited are compressed and transited between the glass cushion rolls, the rubber tube 20 and the adhesives A and A function as cushions against the pressure transmitted to the glass tube 30.
  • the iron core roller tube 10 includes a rotary shaft 11.
  • the rotary shaft 11 is positioned to protrude from both ends of the iron core roller tube 10 so that the rotary shaft 11 is connected to a separate driving unit, to enable power transmission.
  • the iron core roller tube 10 has a hollow tubular shape having a ring-shaped cross section.
  • An air inlet 12 is perforated at one side end of the iron core roller tube 10, so that air is injected into an air inflow space 14 inside the iron core roller tube 10.
  • a number of air outlets 13 are perforated on the outer surface of the iron core roller tube 10.
  • the air outlets 13 operatively connect the air inflow space 14 to the outside. (In the present invention, a number of the air outlets 13 are perforated around the middle of the iron core roller tube 10.)
  • the air injected through the air inlet 12 discharges through the air outlets 13.
  • both ends of the outer surface of the iron core roller tube 10 are formed to protrude outwardly, so that an injection space 15 is formed between the both ends of the outer surface of the iron core roller tube 10 and the rubber tube 20 (or outside the iron core roller tube 10 where the air outlets 13 are perforated.)
  • An adhesive A is applied or attached to the both ends formed to protrude.
  • Air is injected into the injection space 15.
  • the rubber tube 20 (to be described later) is coaxially positioned over the outer surface of the iron core roller tube 10.
  • the rubber tube 20 is secured to the both ends of the outer surface of the iron core roller tube 10 by the adhesive A. Then, the air flowing into the air inflow space 14 through the air inlet 12 of the iron core roller tube 10 fills the injection space 15 through the air outlets 13 of the iron core roller tube 10, thereby expanding the rubber tube 20 outwardly.
  • the rubber tube 20 with both open ends has a hollow tubular shape having a ring-shaped cross section.
  • the rubber tube 20 is coaxially positioned over the outer surface of the iron core roller tube 10 lengthwise. That is, the rubber tube 20 is placed on the outer surface of the iron core roller tube 10 lengthwise, so that the rubber tube 20 is united with the iron core roller tube 10 in a single body. (To this end, it is obvious that an inner circumferential diameter of the rubber tube 20 is relatively greater than an outer circumferential diameter of the iron core roller tube 10.)
  • the rubber tube 20 has a rubber material quality which is elastic, it is able to be stretched or compressed. However, any materials other than rubber may be used depending on a user's choice if they are able to be stretched or compressed. (This equally applies to the rubber tube 20 used in the second embodiment.)
  • the rubber tube 20 and the iron core roller tube 10 are locally secured to each other at the both ends of the outer surface of the iron core roller tube 10 where the air outlets 13 are not formed, by the adhesive A applied and attached to the both ends of the outer surface of the iron core roller tube 10, except for the middle of the iron core roller tube 10 where a number of the air outlets 13 are perforated.
  • the adhesive A is the same as those used in the first and second embodiments. Any adhesives of various materials may be selectively used if they are able to secure the iron core roller tube 10 and the rubber tube 20 to each other.
  • the area where the adhesive A is applied and attached may be designated in various manners at the other parts, except for the middle of the iron core roller tube 10 where a number of the air outlets 13 are perforated. Also, it is possible to control the thickness of the adhesive A to be applied and attached.
  • the glass tube 30 is coaxially positioned over an outer surface of the rubber tube 20 and is secured thereto.
  • the glass tube 30 with both open ends has a hollow tubular shape having a ring-shaped cross section.
  • the glass tube 30 is placed on the outer surface of the rubber tube 20, so that the glass tube 30 is united with the rubber tube 20 in a single body.
  • an inner circumferential diameter of the glass tube 30 is greater than an outer circumferential diameter of the rubber tube 20.
  • An adhesive A may be applied and attached between the glass tube 30 and the rubber tube 20, to increase the adhesiveness therebetween.
  • the glass tube 30 is the same as those in the first and second embodiments. Since glass is used, it is not affected by heat, chemicals and abrasion and it is also semi-permanently used. Since the glass tube 30 is coaxially positioned over the outermost glass cushion roll according to the present invention, it can be used to compress food in a process of manufacturing a variety of food in which stability and cleanliness are prioritized, as well as a functional film.
  • the glass tube 30 can be used by polishing its outer surface so as to be controlled at different surface roughness, in accordance with various embodiments of a user. Further, the glass tube 30 can be used by engraving a pattern on its outer surface, using various processing devices, such as a laser. (These are equally applied to the first and second embodiments.)
  • an air inlet 12 is perforated at one side end of the iron core roller tube 10.
  • a number of the air outlets 13 are perforated around the outer surface of the iron core roller tube 10 so that the air flowing into the air inlet 12 discharges outside.
  • the air injected into the iron core roller tube 10 is not completely discharged outside but it outwardly expands a rubber tube 20 coaxially positioned over the outer surface of the iron core roller tube 10.
  • the rubber tube 20 is coaxially positioned over the outer surface of the iron core roller tube 10 and the rubber tube 20 is secured to the iron core roller tube 10.
  • the adhesive A is applied or attached, at a predetermined thickness, to the other parts, except for the position where the air outlets 13 are perforated on the outer surface of the iron core roller tube 10, that is, the both ends of the outer surface of the iron core roller tube 10.
  • the both ends of the iron core roller tube 10 where the adhesive A is applied or attached are formed to protrude outwardly, to form an injection space 15 between the both ends of the iron core roller tube 10 and the rubber tube 20.
  • the rubber tube 20 placed on and connected to the outer surface of the iron core roller tube 10 has joint portions (1) where the rubber tube 20 is secured to the both ends of the iron core roller tube 10.
  • the portion where the rubber tube 20 is secured to the iron core roller tube 10 is referred to as a 'joint portion (1)' and the other portion where the rubber tube 20 is not secured to the iron core roller tube 10 is referred to as a 'non-joint portion (2)')
  • the glass tube 30 is placed on and fitted over an outer surface of the rubber tube 20.
  • an adhesive A is attached or applied to the outer surface of the rubber tube 20.
  • the air injected into the iron core roller tube 10 is put into the injection space 15 between the iron core roller tube 10 and the rubber tube 20 through the air outlets 13, to expand the rubber tube 20.
  • the strength of adhesiveness between the rubber tube 20 and the glass tube 30 can be controlled by controlling the amount of the adhesive A to be attached or applied to the outer surface of the rubber tube 20 in proportion to the pressure between the iron core roller tube 10 and the rubber tube 20.
  • the glass tube 30 coaxially positioned over the rubber tube 20 and secured to the rubber tube 20 can be used by controlling the surface roughness by polishing its outer surface or by engraving a pattern on its outer surface using a laser, in accordance with an user's embodiment.
  • the air inside the iron core roller tube 10 is not discharged outwardly and thus it has progressively high pressure.
  • the high pressure air flows between the iron core roller tube 10 and the rubber tube 20 through a number of the air outlets 13 (between the outer surface of the iron core roller tube 10 and the inner surface of the rubber tube 20), it expands outwardly the rubber tube 20 which is able to be stretched and compressed.
  • a plurality of rollers facing each other is used.
  • a member to be transited such as a functional film or food, is compressed and transited between the rollers.
  • the user is able to control the amount of air to be injected into the iron core roller tube 10.
  • high pressure of the air expanding the rubber tube 20 is controllable by controlling the amount of air to be injected.
  • the user injects air so that the rubber tube 20 expands to the predetermined level as the user desires, when the rubber tube 20 expands to the predetermined level, the user closes the air inlet 12. Then, the rubber tube 20 expands by the high pressure of the air inside the iron core roller tube 10, i.e., inside the rollers. Consequently, the rollers are maintained in the expanded state.
  • the glass tube 30 placed on and fitted over the outer surface of the rubber tube 20 is bendable to the predetermined level, together with the rubber tube 20, by the expansion of the rubber tube 20.
  • the pressure expanding the rubber tube 20 it is necessary to control the amount and thickness of the adhesive A applied and attached between the rubber tube 20 and the glass tube 30, so that the glass tube 30 bending together with the rubber tube 20 can be surely secured to the rubber tube 20.
  • the adhesive A may not be used.
  • the rubber tube 20 expands as the air is continuously injected into the iron core roller tube 10 and therefore it has high pressure, the rubber tube 20 and the glass tube 30 are in contact to each other and secured by the expansive force of the rubber tube 20 even through the adhesive A is not present therebetween.
  • the adhesive A is used between the rubber tube 20 and the glass tube 30, the rubber tube 20 expands outwardly so that the adhesiveness between the rubber tube 20 and the glass tube 30 by the adhesive A is more secure and the adhesive A' functions as a cushion.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rolls And Other Rotary Bodies (AREA)

Abstract

There are provided a glass cushion roll and a method of manufacturing the same. More particularly, the glass cushion roll is constituted by applying or attaching an adhesive functioning as a cushion to an outer surface of an iron core roller tube having a tubular shape and subsequently positioning a glass tube outside the iron core roller tube so as to be secured to it. In accordance with the glass cushion roll and the method of manufacturing the same, since the glass tube which is heat-resistant, chemical-resistant and abrasion-resistant and which is selectively used in the glass cushion roll, it is possible to compress and transit various members to be transited, such as films and food prioritizing stability. Further, the adhesive and the rubber tube function as cushions of the glass tube.

Description

GLASS CUSHION ROLL AND METHOD OF MANUFACTURING THE SAME
The present invention relates to a glass cushion roll using a glass tube being environmentally friendly and having surface roughness to be controllable, and a rubber tube having a restoring force, which is used in compressing various functional film members to be transited between a plurality of rolls and in compressing and transiting food, and a method of manufacturing the same.
Generally, liquid crystal displays (LCD) are widely used in electronic desk calculators, electronic watches, personal computer word processors, and gauges of motor vehicles and machines, among others. A liquid crystal display typically includes a polarizing plate to visualize an orientation change of liquid crystals. A polarizing plate very greatly influences display characteristics of a liquid crystal display.
A polarizing plate generally uses a polarizer (polarizing film), such as a poly vinyl alcohol-based film adsorbed and oriented with a dichroism material, such as iodine or organic dye, which has both sides laminated with a protective film of tri acetyl cellulose. Specifically, a polarizing plate needs a polarizer which is capable of providing a liquid crystal device with good reproducibility of color and good display characteristics.
The aforementioned polarizer is manufactured by carrying a hydrophilic polymer film to a guide roll, immersing it in a swelling bath so as to swell, subsequently, dyeing it by immersing it in a dye bath containing a dichroism material, and elongating it by immersing it in a cross-linking bath.
The aforementioned film is manufactured through an elongating process to extend a hard film, a dyeing exhaustion process to add coloring, a nipping process to squeeze, a drying process to clean, remove a foreign substance and water, a coating process to unite a plurality of the films, and a cutting process to cut the film to fit the size of a TV or monitor.
A roller used in the aforementioned method of manufacturing the LCD film comprises a pipe formed at a certain length, and a shaft welded to be inserted into both ends of the pipe. The LCD film is manufactured by using a film manufacturing apparatus comprising the roller.
In the film manufacturing apparatus, when a polarizing film is positioned between a fixed roller and a pressurizing roller and a pressuring unit pressurizes the pressurizing roller toward the fixed roller, the film caught between the rollers is pulled by traction from a front end and it is transited, so that the LCD film is manufactured.
In the rollers used for the film manufacturing apparatus as described above, that is, in the rollers used for the process of manufacturing functional films, the restoring force of rubber coated in the fixed roller or the pressurizing roller decreases by high pressure during the process of uniting a plurality of the films or coating the films, thereby leaving a press mark on the films to be manufactured.
Additionally, in the rollers used for the process of manufacturing the functional film as described above, since the outer surfaces of the rollers are coated with various chemical solutions, the portions of the rollers coated with harmful chemical solutions are directly in contact with food upon compressing or transiting the food. Thus, these rollers cannot be used in the process relating to the food manufacturing.
Therefore, the present invention has been made to solve the above problems, and it is an aspect of the present invention to provide a glass cushion roll which is capable of surely compressing a member to be transited between a plurality of glass cushion rolls, regardless of kinds of various members to be transited, such as a film or a food material; which uses, at the outermost glass cushion roll, a glass tube being heat resistant, chemical resistant and abrasion resistant and being environmentally friendly, to be widely used in addition to the compression and transition of food during a manufacturing process; and which uses a rubber tube, together with the glass tube, to expand the rubber tube by high pressure of air injected inside, and a method of manufacturing the same.
The other aspects and advantages of the present invention will be described later and will be apparent by the embodiments of the present invention. In addition, the aspects and advantages of the present invention may be realized by the means (units) set forth in the claims and a combination thereof.
In accordance with an embodiment of the present invention, there is provided a glass cushion roll comprising: an iron core roller tube 10 in a hollow tubular shape, with a rotary shaft 11 protruding from both ends of the iron core roller tube 10, the rotary shaft 11 connected to a driving unit to enable power transmission; a glass tube 30 coaxially positioned over an outer surface of the iron core roller tube 10 lengthwise; and an adhesive A applied or attached to the outer surface of the iron core roller tube 10 so that the glass tube 30 is properly secured to the iron core roller tube 10 and the adhesive A functions as a cushion of the glass tube 30.
The glass cushion roll further comprises: a rubber tube 20 positioned between the iron core roller tube 10 and the glass tube 30 and installed around the outer surface of the iron core roller tube 10 lengthwise, so as to be properly secured to the iron core roller tube 10 by the adhesive A, wherein an adhesive A is applied or attached to an outer surface of the rubber tube 20 so that the glass tube 30 is coaxially positioned over the outer surface of the rubber tube 20 so as to be properly secured to the rubber tube 20.
In accordance with another embodiment of the present invention, there is provided a glass cushion roll comprising: an iron core roller tube 10 with an air inlet 12, a number of air outlets 13 and an air inflow space 14, wherein the air inlet 12 is perforated at one end of the iron core roller tube 10 and permits air to flow into the air inflow space 14 inside, the air outlets 13 are perforated on the outer surface of the iron core roller tube 10 and permit the air of the air inflow space 14 to discharge outside, and wherein an adhesive A is applied or attached to the both ends of the outer surface of the iron core roller tube 10 and the both ends applied with the adhesive A are formed to protrude outwardly; a rubber tube 20 coaxially positioned over an outer surface of the iron core roller tube 10 lengthwise, wherein the rubber tube 20 is locally secured to the iron core roller tube 10 through the adhesive A at the both ends of the outer surface where the air outlets 13 are not formed, so that an injection space 15 is formed between the iron core roller tube 10 and the rubber tube 20, and an adhesive A is applied or attached to an outer surface of the rubber tube 20; and a glass tube 30 is press-fitted over the outer surface of the rubber tube 20 lengthwise.
The glass tube 30 is used by controlling surface roughness by polishing its outer surface or by laser engraving a pattern on its outer surface.
In accordance with another embodiment of the present invention, there is provide a method of manufacturing a glass cushion roll, comprising: a step S100 of perforating, on an outer surface of an iron core roller tube 10, a number of air outlets 13 operatively connected to the outside; a step S200 of positioning a rubber tube 20 at the outer surface of the iron core roller tube 10 lengthwise and securing the rubber tube 20 to the iron core roller tube 10 by applying or attaching an adhesive A to both ends of the outer surface of the iron core roller tube 10 where the air outlets 13 are not formed; a step S300 of positioning a glass tube 30 outside the rubber tube 20 lengthwise and fitting the glass tube 30 over the rubber tube 20; a step S400 of permitting air into an air inflow space 14 of the iron core roller tube 10 through an air inlet 12 perforated at one side of the iron core roller tube 10, permitting the air flowing in the air inflow space 14 to fill an injection space 15 between the iron core roller tube 10 and the rubber tube 20 through a number of the air outlets 13, and permitting the rubber tube 20 to expand outwardly by the air of high pressure; and a step S500 of closing the air inlet 12 of the iron core rubber tube 10.
As described above, in accordance with the present invention, since the amount of air permitted to flow into the roller is controlled, depending on different kinds of members to be compressed and transited between a plurality of rollers, an extent that the rubber tube is expanded by high pressure of the air varies and therefore, an intensity of compression is controlled.
In addition, in accordance with the present invention, since the rubber tube inside the roller expands, various members to be transited, such as films and food materials to be transited among a plurality of the rollers, are surely compressed and transited.
Further, in a process of manufacturing a functional film, a press mark is left on the film as the restoring force of the rubber tube decreases by high pressure during the process of uniting a number of the films or coating the films. However, in accordance with the present invention, such a press mark is prevented from leaving on the film.
Furthermore, in accordance with the present invention, since the glass tube is used at the outermost roll, it has good properties being heat resistant, chemical resistant and abrasion resistant and it is semi-permanently used. Also, since the glass tube can be used in the process related to the food manufacturing as well as the functional film manufacturing, it is environmentally friendly.
Furthermore, in accordance with the present invention, when the film is transited between a plurality of rollers, since a friction force between the film to be transited and the glass tube in contact with the film is consistent, an occurrence of a scratch on the film is controlled.
Furthermore, in accordance with the present invention, the surface roughness of the glass tube used at the outermost roll is differently controllable depending on a user's embodiment. Also, the glass tube can be used by engraving many patterns on the glass tube, using a processing device, such as a laser.
These and other aspects and advantages of the present invention will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a front sectional view illustrating a structure of a glass cushion roll according to a first embodiment of the present invention;
FIG. 2 is a front sectional view illustrating a structure of a glass cushion roll according to a second embodiment of the present invention;
FIG. 3 is a perspective view illustrating a structure of a glass cushion roll according to a third embodiment of the present invention;
FIG. 4 is an exploded perspective view illustrating the glass cushion roll of FIG. 3;
FIG. 5 is a side sectional view illustrating a method of using the glass cushion roll of FIG. 3; and
FIG. 6 is a flow chart illustrating a method of manufacturing the glass cushion roll according to the present invention.
[ Brief description of reference numbers of major elements]
10: iron core roller tube 12: air inlet
13: air outlets 14: air inflow space
15: injection space 20: rubber tube
30: glass tube
Prior to a detailed explanation of the embodiments of the present invention, it will be understood that, detailed constitution and arrangements of elements described in the detailed description or illustrated in the drawings should not be construed as limiting the application of the invention. The invention may be embodied in many alternate forms and performed in various methods.
　　　The terms or words to describe the direction of an apparatus or element (for example, “front”, “back”, “up”, “down”, “top”, “bottom”, “left”, “right” and “lateral”, among others) are used to simplify the description of the invention. It will be, therefore, understood that these terms do not mean that the relevant apparatus or element shall be only in the specific direction.
　　　To achieve the aforementioned objects and aspects, the present invention has the characteristics given below:
The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which preferred embodiments of the invention are shown. It will be understood that words or terms used in the specification and claims shall not be interpreted as the meaning defined in commonly used dictionaries. It will be further understood that the words or terms should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and the technical idea of the invention, based on the principle that an inventor may properly define the meaning of the words or terms to best explain the invention.
Accordingly, while example embodiments of the present invention are capable of various modifications and alternative forms, embodiments of the present invention are shown by way of example in the drawings and will herein be described in detail. It should be understood, however, that there is no intent to limit example embodiments of the invention to the particular forms disclosed, but on the contrary, example embodiments of the invention are to cover all modifications, equivalents, and alternatives falling within the scope of the invention.
Hereinafter, a glass cushion roll and a method of manufacturing the same according to embodiments of the present invention will be described in detail with reference to FIGS. 1 through 6.
A glass cushion roll 50 and a method of manufacturing the same include an iron core roller tube 10, a rubber tube 20 and a glass tube 30.
In the glass cushion roll 50 according to a first embodiment of the present invention, as illustrated in FIG. 1, the glass tube 30 is coaxially positioned over an outer surface of the iron core roller tube 10. An adhesive A is applied or attached between the iron core roller tube 10 and the glass tube 30, so that the iron core roller tube 10 and the glass tube 30 are secured to each other. In the glass cushion roll 50 constituted in this manner, the adhesive A is able to function as a cushion of the glass tube 30.
The iron core roller tube 10 includes a rotary shaft 11. The rotary shaft 11 is positioned to protrude from both ends of the iron core roller tube 10 so that the rotary shaft 11 is connected to a separate driving unit (for example, motor), to enable power transmission. The iron core roller tube 10 has a hollow tubular shape having a ring-shaped cross section. The adhesive A is applied or attached to the whole outer surface of the iron core roller tube 10.
The glass tube 30 with both open ends has a hollow tubular shape having a ring-shaped cross section. The glass tube 30 is coaxially positioned over the iron core roller tube 10. The glass tube 30 is properly secured to the iron core roller tube 10 by the adhesive A. A plurality of the glass cushion rolls having the above-described constitution are used so as to rotate together. In this case, when various members P to be transited are compressed and transited between the glass cushion rolls, pressure generates and the pressure is transmitted to the glass tube 30. Then, the adhesive A functions as a cushion of the glass tube 30.
In the glass cushion roll 50 according to a second embodiment of the present invention, as illustrated in FIG. 2, the rubber tube 20 is coaxially positioned over an outer surface of the iron core roller tube 10 and the glass tube 30 is coaxially positioned over an outer surface of the rubber tube 20. The iron core roller tube 10 and the rubber tube 20 are properly secured to each other by an adhesive A and the rubber tube 20 and the glass tube 30 are properly secured to each other by an adhesive A' In the glass cushion roll 50 constituted in this manner, the adhesive A and the adhesive A' are able to function as a cushion of the glass tube 30.
Like the first embodiment described above, the iron core roller tube 10 includes a rotary shaft 11. The rotary shaft 11 is positioned to protrude from both ends of the iron core roller tube 10, so that the rotary shaft 11 is connected to a separate driving unit, to enable power transmission. The iron core roller tube 10 has a hollow tubular shape having a ring-shaped cross section. The adhesive A is applied or attached to the whole outer surface of the iron core roller tube 10.
The rubber tube 20 with both open ends has a hollow tubular shape having a ring-shaped cross section. The rubber tube 20 is coaxially positioned over the outer surface of the iron core roller tube 10. The rubber tube 20 coaxially positioned over the iron core roller tube 10 is properly secured to the iron core roller tube 10 by the adhesive A applied or attached to the outer surface of the iron core roller tube 10. In addition, the adhesive A is applied or attached to the whole outer surface of the rubber tube 20.
Like the glass tube 30 of the first embodiment and the glass tube 30 of a third embodiment to be described later, the glass tube 30 of this second embodiment with both open ends has a hollow tubular shape having a ring-shaped cross section. In this second embodiment, the glass tube 30 is coaxially positioned over the outer surface of the rubber tube 20 where the adhesive A is applied, so as to be properly secured to the rubber tube 20. Like the first embodiment, a plurality of the glass cushion rolls constituted in the manner according to the second embodiment is used so as to rotate together. In this case, when various members to be transited are compressed and transited between the glass cushion rolls, the rubber tube 20 and the adhesives A and A function as cushions against the pressure transmitted to the glass tube 30.
In the glass cushion roll 50 according to a third embodiment of the present invention, as illustrated in FIGS. 3 through 5, air is injected into the iron core roller tube 10 of the second embodiment. As the injected air discharges outwardly through a number of air outlets 13 formed on the outer surface of the iron core roller tube 10, the rubber tube 20 coaxially positioned over the iron core roller tube 10 expands outwardly.
The iron core roller tube 10 includes a rotary shaft 11. The rotary shaft 11 is positioned to protrude from both ends of the iron core roller tube 10 so that the rotary shaft 11 is connected to a separate driving unit, to enable power transmission. The iron core roller tube 10 has a hollow tubular shape having a ring-shaped cross section. An air inlet 12 is perforated at one side end of the iron core roller tube 10, so that air is injected into an air inflow space 14 inside the iron core roller tube 10. A number of air outlets 13 are perforated on the outer surface of the iron core roller tube 10. The air outlets 13 operatively connect the air inflow space 14 to the outside. (In the present invention, a number of the air outlets 13 are perforated around the middle of the iron core roller tube 10.) The air injected through the air inlet 12 discharges through the air outlets 13.
In addition, except for the middle of the iron core roller tube 10 where a number of the air outlets 13 are perforated, both ends of the outer surface of the iron core roller tube 10 are formed to protrude outwardly, so that an injection space 15 is formed between the both ends of the outer surface of the iron core roller tube 10 and the rubber tube 20 (or outside the iron core roller tube 10 where the air outlets 13 are perforated.) An adhesive A is applied or attached to the both ends formed to protrude.
Air is injected into the injection space 15. The rubber tube 20 (to be described later) is coaxially positioned over the outer surface of the iron core roller tube 10. The rubber tube 20 is secured to the both ends of the outer surface of the iron core roller tube 10 by the adhesive A. Then, the air flowing into the air inflow space 14 through the air inlet 12 of the iron core roller tube 10 fills the injection space 15 through the air outlets 13 of the iron core roller tube 10, thereby expanding the rubber tube 20 outwardly.
The rubber tube 20 with both open ends has a hollow tubular shape having a ring-shaped cross section. The rubber tube 20 is coaxially positioned over the outer surface of the iron core roller tube 10 lengthwise. That is, the rubber tube 20 is placed on the outer surface of the iron core roller tube 10 lengthwise, so that the rubber tube 20 is united with the iron core roller tube 10 in a single body. (To this end, it is obvious that an inner circumferential diameter of the rubber tube 20 is relatively greater than an outer circumferential diameter of the iron core roller tube 10.)
Since the rubber tube 20 has a rubber material quality which is elastic, it is able to be stretched or compressed. However, any materials other than rubber may be used depending on a user's choice if they are able to be stretched or compressed. (This equally applies to the rubber tube 20 used in the second embodiment.)
When the rubber tube 20 is placed on the outer surface of the iron core roller tube 10 as described above, the rubber tube 20 and the iron core roller tube 10 are locally secured to each other at the both ends of the outer surface of the iron core roller tube 10 where the air outlets 13 are not formed, by the adhesive A applied and attached to the both ends of the outer surface of the iron core roller tube 10, except for the middle of the iron core roller tube 10 where a number of the air outlets 13 are perforated.
The adhesive A is the same as those used in the first and second embodiments. Any adhesives of various materials may be selectively used if they are able to secure the iron core roller tube 10 and the rubber tube 20 to each other. In the third embodiment, depending on a user, the area where the adhesive A is applied and attached may be designated in various manners at the other parts, except for the middle of the iron core roller tube 10 where a number of the air outlets 13 are perforated. Also, it is possible to control the thickness of the adhesive A to be applied and attached.
The glass tube 30 is coaxially positioned over an outer surface of the rubber tube 20 and is secured thereto. The glass tube 30 with both open ends has a hollow tubular shape having a ring-shaped cross section.
That is, the glass tube 30 is placed on the outer surface of the rubber tube 20, so that the glass tube 30 is united with the rubber tube 20 in a single body. To this end, it is obvious that an inner circumferential diameter of the glass tube 30 is greater than an outer circumferential diameter of the rubber tube 20.)
An adhesive A may be applied and attached between the glass tube 30 and the rubber tube 20, to increase the adhesiveness therebetween.
The glass tube 30 is the same as those in the first and second embodiments. Since glass is used, it is not affected by heat, chemicals and abrasion and it is also semi-permanently used. Since the glass tube 30 is coaxially positioned over the outermost glass cushion roll according to the present invention, it can be used to compress food in a process of manufacturing a variety of food in which stability and cleanliness are prioritized, as well as a functional film.
The glass tube 30 can be used by polishing its outer surface so as to be controlled at different surface roughness, in accordance with various embodiments of a user. Further, the glass tube 30 can be used by engraving a pattern on its outer surface, using various processing devices, such as a laser. (These are equally applied to the first and second embodiments.)
A method of manufacturing the glass cushion roll having the above-described constitution and structure according to a preferred embodiment of the present invention will be described with reference to FIG. 6 and the third embodiment.
1. Step S100 of perforating a number of air outlets 13 on an outer surface of an iron core roller tube 10 in a tubular shape:
To inject air in an air inflow space 14 of the iron core roller tube 10, an air inlet 12 is perforated at one side end of the iron core roller tube 10. A number of the air outlets 13 are perforated around the outer surface of the iron core roller tube 10 so that the air flowing into the air inlet 12 discharges outside.
The air injected into the iron core roller tube 10 is not completely discharged outside but it outwardly expands a rubber tube 20 coaxially positioned over the outer surface of the iron core roller tube 10.
2. Step S200 of positioning the rubber tube 20 outside the iron core roller tube 10 lengthwise and securing the rubber tube 20 to the iron core roller tube 10 by applying an adhesive A at both ends of the outer surface of the iron core roller tube 10 where the air outlets 13 are not formed:
The rubber tube 20 is coaxially positioned over the outer surface of the iron core roller tube 10 and the rubber tube 20 is secured to the iron core roller tube 10. The adhesive A is applied or attached, at a predetermined thickness, to the other parts, except for the position where the air outlets 13 are perforated on the outer surface of the iron core roller tube 10, that is, the both ends of the outer surface of the iron core roller tube 10.
The both ends of the iron core roller tube 10 where the adhesive A is applied or attached are formed to protrude outwardly, to form an injection space 15 between the both ends of the iron core roller tube 10 and the rubber tube 20.
Thus, the rubber tube 20 placed on and connected to the outer surface of the iron core roller tube 10 has joint portions (①) where the rubber tube 20 is secured to the both ends of the iron core roller tube 10. (For clarity, the portion where the rubber tube 20 is secured to the iron core roller tube 10 is referred to as a 'joint portion (①)' and the other portion where the rubber tube 20 is not secured to the iron core roller tube 10 is referred to as a 'non-joint portion (②)')
3. Step S300 of positioning a glass tube 30 outside the rubber tube 20 lengthwise:
The glass tube 30 is placed on and fitted over an outer surface of the rubber tube 20. To secure the glass tube 30 to the rubber tube 20, an adhesive A is attached or applied to the outer surface of the rubber tube 20.
The air injected into the iron core roller tube 10 is put into the injection space 15 between the iron core roller tube 10 and the rubber tube 20 through the air outlets 13, to expand the rubber tube 20. Then, the strength of adhesiveness between the rubber tube 20 and the glass tube 30 can be controlled by controlling the amount of the adhesive A to be attached or applied to the outer surface of the rubber tube 20 in proportion to the pressure between the iron core roller tube 10 and the rubber tube 20. (In addition, the glass tube 30 coaxially positioned over the rubber tube 20 and secured to the rubber tube 20 can be used by controlling the surface roughness by polishing its outer surface or by engraving a pattern on its outer surface using a laser, in accordance with an user's embodiment.)
4. Step S400 of injecting air into the air inflow space 14 of the iron core roller tube 10 though the air inlet 12 perforated at one side of the iron core roller tube 10 and expanding the rubber tube 20 outwardly by high pressure air discharging through a number of the air outlets 13:
If the air is continuously injected into the iron core roller tube 10 after the glass cushion roll is formed in the aforementioned manner, the air inside the iron core roller tube 10 is not discharged outwardly and thus it has progressively high pressure. As the high pressure air flows between the iron core roller tube 10 and the rubber tube 20 through a number of the air outlets 13 (between the outer surface of the iron core roller tube 10 and the inner surface of the rubber tube 20), it expands outwardly the rubber tube 20 which is able to be stretched and compressed.
That is, since the iron core roller tube 10 and the rubber tube 20 are secured to each other at the both ends only by the adhesive A, a middle of the rubber tube 20 which is the non-joint portion ② of the iron core roller tube 10 and the rubber tube 20 is inflated and expanded by the high pressure of the air discharging through a number of the air outlets 13 and filling the injection space 15.
5. Step S500 of closing the air inlet 12 after injecting the air to expand the rubber tube 20 to a predetermined level as the user desires:
A plurality of rollers facing each other is used. A member to be transited, such as a functional film or food, is compressed and transited between the rollers. Depending on the thickness and kind of the member to be compressed and transited between the rollers, the user is able to control the amount of air to be injected into the iron core roller tube 10. Thus, high pressure of the air expanding the rubber tube 20 is controllable by controlling the amount of air to be injected.
Therefore, after the user injects air so that the rubber tube 20 expands to the predetermined level as the user desires, when the rubber tube 20 expands to the predetermined level, the user closes the air inlet 12. Then, the rubber tube 20 expands by the high pressure of the air inside the iron core roller tube 10, i.e., inside the rollers. Consequently, the rollers are maintained in the expanded state.
Of course, the glass tube 30 placed on and fitted over the outer surface of the rubber tube 20 is bendable to the predetermined level, together with the rubber tube 20, by the expansion of the rubber tube 20. In proportion to the pressure expanding the rubber tube 20, it is necessary to control the amount and thickness of the adhesive A applied and attached between the rubber tube 20 and the glass tube 30, so that the glass tube 30 bending together with the rubber tube 20 can be surely secured to the rubber tube 20. When the pressure of the air applied between the rubber tube 20 and the glass tube 30 is low, the adhesive A may not be used. Namely, when the rubber tube 20 expands as the air is continuously injected into the iron core roller tube 10 and therefore it has high pressure, the rubber tube 20 and the glass tube 30 are in contact to each other and secured by the expansive force of the rubber tube 20 even through the adhesive A is not present therebetween. When the adhesive A is used between the rubber tube 20 and the glass tube 30, the rubber tube 20 expands outwardly so that the adhesiveness between the rubber tube 20 and the glass tube 30 by the adhesive A is more secure and the adhesive A' functions as a cushion.
The invention has been described using preferred exemplary embodiments. However, it is to be understood that the scope of the invention is not limited to the disclosed embodiments. On the contrary, the scope of the invention is intended to include various modifications and alternative arrangements within the capabilities of persons skilled in the art using presently known or future technologies and equivalents. The scope of the claims, therefore, should be accorded the broadest interpretation so as to encompass all such modifications and similar arrangements.

Claims (5)

  1. A glass cushion roll comprising:
    an iron core roller tube (10) in a hollow tubular shape, wherein a rotary shaft (11) connected to a driving unit to enable power transmission is positioned to protrude from both ends of the iron core roller tube (10);
    a glass tube (30) coaxially positioned over an outer surface of the iron core roller tube (10) lengthwise; and
    an adhesive (A) applied or attached to the outer surface of the iron core roller tube (10), to properly secure the glass tube (30) to the iron core roller tube (10) and to function as a cushion of the glass tube (30).
  2. The glass cushion roll according to claim 1, further comprising:
    a rubber tube (20) coaxially positioned over the outer surface of the iron core roller tube (10) lengthwise between the iron core roller tube (10) and the glass tube (30) and properly secured to the iron core roller tube (10) by the adhesive (A), wherein an adhesive (A') is applied or attached to an outer surface of the rubber tube (20), to properly secure the rubber tube (20) to the glass tube (30) coaxially positioned over the outer surface of the rubber tube (20).
  3. A glass cushion roll comprising:
    an iron core roller tube (10), wherein an air inlet (12) permitting air to flow into an air inflow space (14) inside is perforated at one side end of the iron core roller tube (10), a number of air outlets (13) permitting the air inside the air inflow space (14) to discharge outside are perforated on the outer surface of the iron core roller tube (10), an adhesive (A) is applied or attached to both ends of the outer surface of the iron core roller tube (10), and the both ends applied with the adhesive (A) are formed to protrude outwardly;
    a rubber tube (20) coaxially positioned over the outer surface of the iron core roller tube (10) lengthwise and locally secured to the iron core roller tube (10) at the both ends of the outer surface thereof where the air outlets (13) are not formed by the adhesive (A), wherein an injection space (15) is formed between the rubber tube (20) and the iron core roller tube (10) and an adhesive (A') is applied or attached to an outer surface of the rubber tube (20); and
    a glass tube (30) placed on and fitted over the outer surface of the rubber tube (20) lengthwise.
  4. The glass cushion roll according to any one of claims 1 to 3, wherein the glass tube (30) is used by controlling surface roughness by polishing its outer surface or by engraving a pattern on its outer surface.
  5. A method of manufacturing a glass cushion roll, comprising:
    a step (S100) of perforating a number of air outlets (13) operatively connected to the outside on an outer surface of an iron core roller tube (10) in a tubular shape;
    a step (S200) of positioning a rubber tube (20) outside the iron core roller tube (20) lengthwise and securing the rubber tube (20) to the iron core roller tube (10) by applying or attaching an adhesive (A) at both ends of the outer surface of the iron core roller tube (10) where the air outlets (13) are not formed;
    a step (S300) of positioning a glass tube (30) outside the rubber tube (20) lengthwise and securing the glass tube (30) to the rubber tube (20);
    a step (S400) of permitting air to flow into an air inflow space (14) of the iron core roller tube (10) through an air inlet (12) perforated at one side of the iron core roller tube (10) and permitting the air flowing in the air inflow space (14) to fill an injection space (15) formed between the iron core roller tube (10) and the rubber tube (20) through a number of the air outlets (13), to expand the rubber tube (20) outwardly by the air of high pressure; and
    a step (S500) of closing the air inlet (12) of the iron core roller tube (10).
PCT/KR2010/008663 2010-10-28 2010-12-06 Glass cushion roll and method of manufacturing the same WO2012057402A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2010-0106106 2010-10-28
KR1020100106106A KR101059911B1 (en) 2010-10-28 2010-10-28 Glass cushion roll and manufacturing method thereof

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WO2012057402A1 true WO2012057402A1 (en) 2012-05-03

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WO (1) WO2012057402A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6159025U (en) * 1984-09-20 1986-04-21
JPH0499259A (en) * 1990-08-10 1992-03-31 Nakashima:Kk Roll material having glass surface and its production
JP2004161435A (en) * 2002-11-13 2004-06-10 Sumitomo Rubber Ind Ltd Rubber roller and tool used therefor
JP2005022226A (en) * 2003-07-02 2005-01-27 Yamauchi Corp Manufacturing method of resin roll

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6159025U (en) * 1984-09-20 1986-04-21
JPH0499259A (en) * 1990-08-10 1992-03-31 Nakashima:Kk Roll material having glass surface and its production
JP2004161435A (en) * 2002-11-13 2004-06-10 Sumitomo Rubber Ind Ltd Rubber roller and tool used therefor
JP2005022226A (en) * 2003-07-02 2005-01-27 Yamauchi Corp Manufacturing method of resin roll

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