EP2647781A1 - Lame à parquet capable d'absorber la dilatation et la contraction - Google Patents

Lame à parquet capable d'absorber la dilatation et la contraction Download PDF

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Publication number
EP2647781A1
EP2647781A1 EP20120846460 EP12846460A EP2647781A1 EP 2647781 A1 EP2647781 A1 EP 2647781A1 EP 20120846460 EP20120846460 EP 20120846460 EP 12846460 A EP12846460 A EP 12846460A EP 2647781 A1 EP2647781 A1 EP 2647781A1
Authority
EP
European Patent Office
Prior art keywords
floor board
resin
flexible
joining member
main body
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.)
Withdrawn
Application number
EP20120846460
Other languages
German (de)
English (en)
Other versions
EP2647781A4 (fr
Inventor
Je-Ho Lee
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongwha Nature Flooring Co Ltd
Original Assignee
Dongwha Nature Flooring Co Ltd
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 Dongwha Nature Flooring Co Ltd filed Critical Dongwha Nature Flooring Co Ltd
Publication of EP2647781A1 publication Critical patent/EP2647781A1/fr
Publication of EP2647781A4 publication Critical patent/EP2647781A4/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/02—Flooring or floor layers composed of a number of similar elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/12—Flooring or floor layers made of masses in situ, e.g. seamless magnesite floors, terrazzo gypsum floors
    • E04F15/14—Construction of joints, e.g. dividing strips
    • E04F15/142—Dividing strips or boundary strips
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/02—Flooring or floor layers composed of a number of similar elements
    • E04F15/10—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials
    • E04F15/105—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials of organic plastics with or without reinforcements or filling materials
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2201/00—Joining sheets or plates or panels
    • E04F2201/01—Joining sheets, plates or panels with edges in abutting relationship
    • E04F2201/0153—Joining sheets, plates or panels with edges in abutting relationship by rotating the sheets, plates or panels around an axis which is parallel to the abutting edges, possibly combined with a sliding movement
    • E04F2201/0161—Joining sheets, plates or panels with edges in abutting relationship by rotating the sheets, plates or panels around an axis which is parallel to the abutting edges, possibly combined with a sliding movement with snap action of the edge connectors
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2203/00—Specially structured or shaped covering, lining or flooring elements not otherwise provided for
    • E04F2203/04—Specially structured or shaped covering, lining or flooring elements not otherwise provided for comprising a plurality of internal elongated cavities arranged in substantially parallel rows
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2203/00—Specially structured or shaped covering, lining or flooring elements not otherwise provided for
    • E04F2203/08—Specially structured or shaped covering, lining or flooring elements not otherwise provided for with a plurality of grooves or slits in the back side, to increase the flexibility or bendability of the elements

Definitions

  • the present invention relates, in general, to a floor board and, more particularly, to a floor board capable of absorbing deformation by expansion and contraction, which absorbs deformation by expansion and contraction resulting from a change in temperature and moisture, thus minimizing deformation (flaw) of a construction state of a laminate floor board, and which is utilized to finish a boundary between the floor board and a trim or to finish an edge of a constructed laminate floor board, thus substituting for an extending/finishing profile.
  • the installing of a wooden floor board on a floor or wall is carried out by a traditional method, such as an attaching operation using an adhesive or a fixing operation using a nail or a wooden nail.
  • the traditional installing method is problematic in that the use of the adhesive inconveniences a worker and negatively affects a human body, and it is difficult to use a nail, a wooden nail, etc. to fix a wooden board on a hard material such as concrete.
  • floating installation has been developed.
  • the laminate floor board that is currently on the market is formed by combining a surface laminate layer (e.g. resin special coating layer), an intermediate layer (e.g. core or core wooden layer) such as HDF, and a lower layer (e.g. moisture-proof laminate layer) together in a direction from an upper position to a lower position, thus providing the properties of wood and avoiding the drawbacks of wood.
  • a surface laminate layer e.g. resin special coating layer
  • an intermediate layer e.g. core or core wooden layer
  • a lower layer e.g. moisture-proof laminate layer
  • wood is pulverized into minute pieces, is mixed with an adhesive, and is compressed to HDF. Thereafter, a sheet on which a hardwood pattern is printed is attached, and then is coated with chemical melamine resin.
  • a laminate floor board is a structure suitable for the floating installation, and is continuously constructed by a connection using a coupling structure of tongues and grooves which are provided on opposite boards, that is, a complementary structure.
  • Such a laminate floor board is advantageous in that it is relatively resistant to external shocks, is more inexpensive than a plywood, bamboo, or hardwood floor board, is convenient in construction, and is various in design.
  • the laminate floor board is relatively sensitive when it is exposed to moisture for a lengthy period of time, and is high in shrinking-swelling ratio, so that a floor board may be warped.
  • the floor board in the case of absorbing an excessive amount of moisture, the floor board swells, so that a seam may rise up.
  • an underside of the floor board shrinks, so that a thickness of a seam portion may be reduced and thus a gap may be formed.
  • the laminate floor board is constructed in such a way that its edge is spaced apart from a wall by a predetermined distance (approx. 10 mm).
  • the space between the edge and the wall causes a problem, that is, fine dust from the edge may be introduced into a room during walking, or a noise may be generated.
  • the laminate floor board has a core wooden layer
  • various technologies for suppressing mobility by additionally using an adhesive between a tongue and a groove, or of eliminating a gap by further interposing an elastic body between a tongue and a groove, so as to frequently cope with contraction in low humidity or expansion in high humidity when the floor board is exposed to moisture or humidity for a lengthy period of time.
  • the finishing of a laminate floor board is performed such that an upper portion of an upper profile protrudes from a surface of the laminate floor board, in other words, a small threshold is formed again.
  • a small threshold is formed even at a boundary between a trim and a floor.
  • the present invention has been made keeping in mind the above problems occurring in the related art, and is intended to provide a floor board capable of absorbing deformation by expansion and contraction, which is utilized as an edge finishing material of a laminate floor board that is to be constructed, or as an intermediate material between laminate floor boards, or as an extending/finishing profile of a trim boundary that partitions a space into sections, thus effectively absorbing an expansion and contraction ratio of the laminate floor board due to a change in temperature and moisture and thereby minimizing deformation (flaw) of a constructed state.
  • Another object of the present invention is to provide a floor board capable of absorbing deformation by expansion and contraction, which can be constructed on the same level as a surface of a laminate floor board, thus preventing a person from tripping on the floor board while walking/cleaning due to an upwardly protruding portion of the floor board, and thereby enhancing marketability.
  • a further object of the present invention is to provide floor board capable of absorbing deformation by expansion and contraction, which can be manufactured by extrusion molding, thus industrially achieving mass production, and reducing a manufacturing cost thereof.
  • the present invention provides a floor board capable of absorbing deformation by expansion and contraction, wherein the floor board is industrially manufactured by extrusion molding, and is configured such that adjacent hard resin plates are joined to each other by a joining member made of flexible soft resin or flexible foam resin, both hard resin plates located at outermost positions having the same tongue-groove structure as a tongue-groove coupling structure of a constructed laminate floor board, as a structure complementary to the laminate floor board.
  • an upper surface of the hard resin plate and an upper surface of a main body of the joining member made of the flexible soft resin or flexible foam resin may form the same horizontal plane, a flexible surface sheet on which the same hardwood pattern as that of the common laminate floor board is printed being attached to the upper surfaces thereof.
  • a lower surface of the main body of the joining member made of the flexible soft resin or flexible foam resin may be joined to have a flexible cavity between the adjacent hard resin plates, thus receiving an expansion and contraction ratio.
  • the hard resin plate may be preferably formed of hard PVC
  • the flexible soft resin may preferably comprise silicone rubber (soft PVC resin)
  • the joining member of the flexible foam resin may be preferably formed of urethane foam resin, non-crosslinked polyethylene foam, EVA foam resin, and synthetic rubber foam.
  • the joining member made of the flexible soft resin or flexible foam resin may include a flexible rectangular main body in a direction of joining with the adjacent hard resin plates.
  • the main body may be a parallelogram, a trapezoid, etc.
  • the rectangular main body may be formed such that four corners thereof are inclined surfaces and are covered with the hard resin plate.
  • the joining member made of the flexible soft resin or flexible foam resin may include a rectangular main body formed in a joining direction of the adjacent hard resin plate, and a pair of left and right protruding portions joined to recesses formed in joining end surfaces of a plurality of adjacent hard resin plates.
  • each protruding portion may be joined to a recess that is formed in a joining end surface of the hard resin plate in such a way as to be wide at an inner position and narrow at an outer position.
  • the rectangular main body may be a solid type or a hollow type.
  • the hard resin plate may also be a solid type or a hollow type.
  • the rectangular main body may include a restriction portion to restrict the excessive expansion or contraction.
  • a protruding portion of the joining member made of the flexible soft resin or flexible foam resin may be connected to another protruding portion via a through hole that is formed through an adjacent hard resin plate in a joining direction thereof.
  • the joining member made of the flexible soft resin or flexible foam resin may be formed on upper and lower portions between adjacent hard resin plates in a joining direction in such a way that a hollow portion is formed between the adjacent hard resin plates.
  • the floor board capable of absorbing deformation by expansion and contraction according to the present invention is advantageous in that it enables industrial mass production, thus realizing cost reduction, and is utilized as an edge finishing material of a laminate floor board that is to be constructed, or as an intermediate material between laminate floor boards, or as an extending/finishing profile of a trim boundary that partitions a space into sections, thus ensuring the universality of a product.
  • the present invention is advantageous in that it is possible to prevent the deformation of a laminate floor board by a change in expansion and contraction ratio, thus eliminating flaws during the construction of the laminate floor board, and allowing the laminate floor board to stably perform its function.
  • the present invention is advantageous in that a flexible joining member is formed of flexible soft resin or foam resin, and a hard resin plate is formed by blow molding to achieve a durable function as well as lightness, thus guaranteeing the reliability of a product.
  • the present invention is utilized as an edge finishing material of a laminate floor board, or an intermediate material between laminate floor boards, or an extending/finishing profile of a trim boundary that partitions a space into sections, thus effectively absorbing an expansion and contraction ratio of a constructed laminate floor board due to a change in temperature and moisture, minimizing deformation (flaw) of a constructed state, and thereby serving as a substitute for the extending/finishing profile.
  • FIG. 1 is a perspective view showing a preferred embodiment of the present invention
  • FIG. 2 is a sectional view showing structural characteristics of the present invention.
  • FIG. 6 An example of a constructed state of the present invention is shown in FIG. 6 .
  • a floor board of this invention is installed between laminate floor boards (L/F) constructed on a floor surface.
  • the floor board capable of absorbing deformation by expansion and contraction according to the present invention is configured so that adjacent hard resin plates 200 are joined to each other via a joining member 100 made of flexible soft resin or flexible foam resin. Both hard resin plates located at outermost positions have the same tongues 220 and grooves 230 as a tongue-groove coupling structure of a constructed laminate floor board, as a structure complementary to the laminate floor board.
  • Upper surfaces of the hard resin plate 200 and of a main body 110 of the joining member 100 made of flexible soft resin or flexible foam resin form the same horizontal plane.
  • a flexible surface sheet 300 on which the same hardwood pattern as that of the laminate floor board is printed Thereafter, it is cut in a standard unit to be supplied as a product.
  • the floor board of the present invention can be industrially mass-produced by an extrusion molding method, and is cut to a predetermined length as required.
  • the joining member 100 made of the flexible soft resin or flexible foam resin includes the flexible main body 110.
  • the flexible main body having a solid-type rectangular shape and joined to the adjacent hard resin plates 200 in such a way as to be in close contact therewith in a joining direction thereof, is joined to end surfaces of the plurality of adjacent hard resin plates 200, respectively.
  • the joining member is attached to the hard resin plates to have a flexible cavity 240 between the adjacent hard resin plates 200, thus being capable of accepting an expansion and contraction ratio (deformation by contraction or expansion).
  • the joining member 100 of the flexible soft resin or flexible foam resin may have a rectangular or square shape in a widthwise direction, depending on an interval between the adjacent hard resin plates 200 that are to be joined together.
  • the hard resin plate 200 of the present invention is made of hard PVC-based resin.
  • the flexible soft resin of the joining member 100 is silicone rubber or soft synthetic rubber, and the flexible foam resin thereof is selected from a group comprising urethane foam resin, non-crosslinked polyethylene foam, EVA foam resin, and synthetic rubber foam.
  • the joining member 100 of the flexible soft resin or flexible foam resin is compressed (contracted) or swollen (expanded) in the joining direction of the adjacent hard resin plates 200 joined to the main body 110, as the constructed laminate floor board (L/F) is contracted or swollen, thus compensating for and absorbing the expansion and contraction ratio.
  • the joining member 100 of the flexible soft resin or flexible foam resin according to the present invention is preferably a solid type.
  • the joining member may be formed hollow, as shown in embodiments of FIGS. 8 to 14 .
  • the hard resin plate 200 of the present invention is more preferably formed hollow, as shown in embodiments of FIGS. 8 , 10 , 12 , 20 and 22 .
  • a component of the present invention that is, the joining member 100 made of the flexible soft resin or flexible foam resin may be formed hollow, and then the upper and lower surfaces of the hard resin plate 200 and of the main body 110 of the joining member 100 made of the flexible soft resin or flexible foam resin are placed to form the same horizontal plane. In this state, flexible surface sheets 300 and 310 may be attached to the upper and lower surfaces.
  • the deformation of the hollow joining member 100 made of the flexible soft resin or foam resin is suppressed to the maximum, thus increasing a smooth restoring function.
  • deformation guide grooves 130 are preferably formed on upper and lower portions of an inner surface of the main body in such a way as to face each other, as shown in the extracted enlarged view of FIG. 13 , thus coping with contraction and extension in a horizontal direction, and thereby being uniformly contracted and extended for the expansion and contraction ratio.
  • the deformation guide groove 130 allows the main body to be easily deformed, namely, contracted or expanded.
  • a recess 210 may be formed in the joining direction of the adjacent hard resin plates 200, and the joining member 100 made of the flexible soft resin or the flexible foam resin may be formed such that the main body 110 is hollow while a protruding portion 120 is formed in the recess 210.
  • the protruding portion 120 is formed to be joined to the recess 210 that is formed in the joining end surface of the hard resin plate 200 in such a way as to be wide at an inner position and narrow at an outer position. Thereby, this can reinforce a restoring force after the joining member 100 made of the flexible soft resin or the flexible foam resin expands in the expanding direction, and prevent a removal in the contracting or expanding direction.
  • the main body 110 may be formed in such a way that both sidewalls 111 are connected to each other and a restriction portion 112 is integrated therein.
  • the restriction portion 112 is intended to suppress excessive expansion or contraction when compression (contraction) or swelling (expansion) takes place in the joining direction of the adjacent hard resin plates 200 joined to the main body 110 by the contraction or swelling of the laminate floor board (L/F).
  • one restriction portion 112 is formed.
  • two or three restriction portions may be formed.
  • the attachment of the flexible surface sheet 300 on which the hardwood pattern having the same as that of the laminate floor board is printed is performed as follows.
  • the hard resin plate 200 and the joining member 100 of the flexible foam resin are continuously subjected to extrusion molding and then moved, and the flexible surface sheet 300, 310 is attached to the upper surfaces of the hard resin plate and the joining member by laminating or wrapping, so that the floor board of the present invention is completed.
  • the flexible surface sheet 300 attached to the upper surfaces suppresses the protrusion of the upper surface of the main body 110 due to the deformation by the contraction when the main body 110 of the joining member 100 made of the flexible soft resin or flexible foam resin contracts. Further, the protrusion towards the lower surface can be received by a flexible recess 240.
  • the flexible surface sheets 300 and 310 attached to the upper and lower surfaces suppress the protrusion of the upper and lower surfaces of the main body 110 due to the deformation by the contraction when the main body 110 of the joining member 100 made of the flexible soft resin or flexible foam resin contracts, and guide the deformation of partial contraction and expansion into the hollow portion.
  • FIGS. 17 and 18 another embodiment of the present invention shown in FIGS. 17 and 18 is different from the above embodiment in that the protruding portion 120 protruding from the main body 110 of the joining member 100 made of the flexible foam resin is connected to a through hole 211 that is formed through the adjacent hard resin plate 200 in a joining direction.
  • the operation of this embodiment remains the same as that of the embodiment shown in FIGS. 15 and 16 .
  • Such an embodiment can be used more efficiently in a place where an expansion and contraction ratio is in a wide range due to a change in moisture in a region or country where a climate change is severe.
  • the joining member 100 made of the flexible soft resin or the flexible foam resin comprises separate band-shaped members, each of which is joined at both ends thereof to steps 212 that are formed, respectively, on upper and lower portions of the adjacent (solid or hollow type) hard resin plate 200 in such a way as to face each other.
  • the joining member 100 made of the flexible soft resin or the flexible foam resin is joined between the adjacent hard resin plates 200 in the joining direction thereof while forming the hollow portion therebetween, so that this is more sensitive in expansion and contraction as compared with the preferred embodiment and other embodiments of the present invention and thereby can be effectively used in a place where a temperature difference between day and night is large.
  • the above band-shaped joining member 100 made of the flexible soft resin or flexible foam resin has on a side thereof the deformation guide groove 130 to enable uniform contraction and expansion.
  • the rectangular main body 110 is formed such that its four corners are inclined surfaces 110a and the hard resin plate 200 covers an outer space outside the inclined surfaces.
  • the above-mentioned component of the present invention namely, the joining member 100 made of the flexible soft resin or flexible foam resin may include the main body 110 having an elliptical or circular hollow portion. If necessary, the main body may have a polygonal hollow portion, as long as it may be formed by extrusion molding.
  • the floor board of the present invention is interposed between the laminate floor boards (L/F) to be utilized as an intermediate absorbing material, a material for finishing an edge, an expansion finishing material for a trim boundary between a room and a living room, and an expansion finishing material for a boundary between a living room and a balcony.
  • L/F laminate floor boards
  • the floor board can be utilized as a single floor board or an interior wall material in a field office of a factory where moisture occurs frequently.
  • the floor board according to the present invention can effectively absorb deformation by expansion and contraction of a laminate floor board, which has recently become a popular flooring material, thus integrating its appearance in the same pattern as that of the laminate floor board, and thereby being very useful in an industrial field.
EP12846460.9A 2011-11-03 2012-11-02 Lame à parquet capable d'absorber la dilatation et la contraction Withdrawn EP2647781A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR20110113856A KR101239366B1 (ko) 2011-11-03 2011-11-03 신축변형 흡수 마루판
PCT/KR2012/009176 WO2013066104A1 (fr) 2011-11-03 2012-11-02 Lame à parquet capable d'absorber la dilatation et la contraction

Publications (2)

Publication Number Publication Date
EP2647781A1 true EP2647781A1 (fr) 2013-10-09
EP2647781A4 EP2647781A4 (fr) 2015-06-10

Family

ID=48181103

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12846460.9A Withdrawn EP2647781A4 (fr) 2011-11-03 2012-11-02 Lame à parquet capable d'absorber la dilatation et la contraction

Country Status (4)

Country Link
EP (1) EP2647781A4 (fr)
KR (1) KR101239366B1 (fr)
CN (1) CN103328740A (fr)
WO (1) WO2013066104A1 (fr)

Cited By (2)

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Publication number Priority date Publication date Assignee Title
WO2018215550A1 (fr) * 2017-05-23 2018-11-29 Innovations 4 Flooring Holding N.V. Système de carreaux à usages multiples
CN112543835A (zh) * 2018-05-23 2021-03-23 I4F许可有限责任公司 多用途砖片系统、砖片覆盖物和砖片

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CN104032928B (zh) * 2014-05-16 2017-01-04 石家庄唐祥模具工贸有限公司 一种防止温差变形的塑胶地板
KR101857859B1 (ko) * 2016-02-26 2018-05-14 한국기술교육대학교 산학협력단 컬럼 일체형 억세스 플로어
CN110593516B (zh) * 2019-09-24 2021-01-05 江阳建设集团有限公司 一种地暖板
CN111003139B (zh) * 2019-12-27 2021-06-22 中国商用飞机有限责任公司 民用飞机的气密地板
CN112252645B (zh) * 2020-09-30 2022-08-19 石家庄唐祥模具工贸有限公司 一种平面度优良的多层软硬复合地板

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WO2018215550A1 (fr) * 2017-05-23 2018-11-29 Innovations 4 Flooring Holding N.V. Système de carreaux à usages multiples
NL2018970B1 (en) * 2017-05-23 2018-12-04 Innovations 4 Flooring Holding Nv Multi-purpose tile system
KR20200008569A (ko) * 2017-05-23 2020-01-28 이노베이션스 포 플로어링 홀딩 엔. 뷔. 다목적 타일 시스템
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EP3936682A3 (fr) * 2017-05-23 2022-04-20 I4F Licensing Nv Système de panneaux à usages multiples
KR102451247B1 (ko) 2017-05-23 2022-10-06 아이4에프 라이센싱 엔뷔 다목적 타일 시스템
US11773602B2 (en) 2017-05-23 2023-10-03 I4F Licensing Nv Multi-purpose tile system
CN112543835A (zh) * 2018-05-23 2021-03-23 I4F许可有限责任公司 多用途砖片系统、砖片覆盖物和砖片

Also Published As

Publication number Publication date
WO2013066104A1 (fr) 2013-05-10
CN103328740A (zh) 2013-09-25
KR101239366B1 (ko) 2013-03-05
EP2647781A4 (fr) 2015-06-10

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