• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to a flexible container for filling, transport and storage of bulk material and is made from at least one piece of base material (1). The bottom of the container is formed from at least four in pairs equally large flaps (4) which are direct extensions of the container's side walls. The bottom flaps (4) are formed by cut lines (a,b), (c,d), (a',b') and (c',d'), in the piece of material (1) and the top angles a and β of the flaps between the respective cut lines turn in against the centre of the bottom. The sum of the top angles a and β of the flaps is less than 360° such that the container's bottom formed by joints (7) of the flaps (4) is downward slightly cone or funnel shaped when the container is inflated. The sum of the top angles a and β of the flaps (4) lies preferably between (240°-280°) and 360°. The container's bottom will by having four flaps (4) be squarish or rectangular, depending on whether a = β or α ≠ p. Each of the bottom seams (7) can terminate at a distance from the centre of the bottom such that there are no seams in a minor area around the centre, and in this area there can be arranged a discharge spout.
    公开号:SU1724010A3
    申请号:SU843784994
    申请日:1984-08-31
    公开日:1992-03-30
    发明作者:Миклебуст Эйрик；Юэль Аннерс；Фредрик Расмуссен Одд
    申请人:Норск Хюдро А.С. (Фирма)；
    IPC主号:
    专利说明:

    / v S
    / L
    V

    The valves have a slight downward taper when the container is full. The sum of the angles a and / 3 of the valves 5 preferably lies between 240-280 ° and 360 °. The bottom of the container, consisting of four valves, can be square or rectangular, depending on
    that Each of the bottom seams may terminate at some distance from the center of the bottom, so that there is a small seamless area around the center and in this area there may be an opening for unloading. 4 hp ff, 7 ill.
    This invention relates to flexible containers for filling, transporting and storing bulk materials.
    The purpose of the invention is to increase strength and ease of operation.
    FIG. 1 shows a section of flat weave fabric for making a flexible container having a square bottom; in fig. 2 is the same for making a container having a hexagonal bottom; in fig. 3 is the same for making a container having a rectangular bottom; in fig. 4 shows a container made from the section of the web shown in FIG. 1, general view; in fig. 5 shows a container made from the web section shown in FIG. 3; in fig. 6 - the container at the time of loading it with bulk material; in fig. 7 - loaded container, longitudinal section. ..
    A flexible container for storing and transporting bulk material is made of a piece 1 of flat weave or round wadded tubular material. The container contains side walls 2, integral with them at least one lifting eye 3 and a bottom, formed by at least four interconnected by means of bottom seams 4 in pairs with equal-sized triangular valves 5, which are a continuation of the side walls and formed lines 6 cut placed around the center of the bottom. The magnitude of the angles a at the apex of one pair of triangular valves in total with the magnitude of the angles J3 at the apex of the other pair of triangular valves is a value greater than 240 and less than 360 °. In the loaded position of the container, its bottom is tapered.
    The container has an opening 7 for filling it with a bulk material. Hole 7 and flaps 5 are formed by lines 6 through the section, respectively, on the fold line 8 of the section 1 of the web and on its lower edge, preferably after folding the web. The side edges of the segment 1 flat-woven
    the webs are connected by side seams 9, which do not reach the line 8 to form holes 10 for the lugs 3.
    The bottom of the container may have a square shape, with the angles a and ft at the tops of the valves 5 in different pairs being equal to each other and amounting to 70 ° a- 90 °. In this case, the value of all valves 5 is the same.
    FIG. 4 shows a container having a square bottom and made from a piece of flat-woven fabric web folded along a fold line 8 and connected by side seams 9 and bottom seams 4. Two bottom seams 4 are a continuation of the side seams 9. If piece 1 of the material consists of two parts, connected in a vertical direction, there are four bottom seams 4 in the container, which in pairs are a continuation of the respective side seams 9.
    The bottom of the container may have a hexagonal shape, while it is formed by six valves 5, the angle of which is apex each of which is 40 ° and 60 °. In this case, the valves 5 are equal in size. When the valves 5 are joined, six bottom seams 4 are formed. Two of them form three diagonal bottom seams, one of which is a direct extension of the side seam 9 of the container.
    The bottom of the container may have a rectangular shape, the angles ai (5 at the tops of the valves 5 in different pairs are not equal to each other. In this embodiment, the design a & 3 and the central valve 5 are shorter and wider than the valves 5, which are formed from the two halves of the outer valves 11 A rectangular bottom is formed accordingly when the valves 5 are connected (Fig. 5), where the two halves of the outer valves 11 are connected from the bottom of the side seams 9. The bottom seams 4, which connect the two half of the outer valves 11, are then extensions of the side seams 9. Line 6 cut obra comfort angle a / 2 to respective side edges. If ft and 90 °, the square bottom formed having a total of six bottom seams 4, two of which are the continuation of the side seam 9, which connect the two half outer flaps.
    FIG. 6 shows a container partially filled with a flowable material, such as cement. The container with the eye 3 is suspended from the hook 12 and filled through the pipe 13. The bottom of the container is tapered and the flowable material is centered during filling and is evenly distributed in the container.
    FIG. Figure 7 shows a suspended container that is filled with free-flowing material and prepared for storage or transport. The bottom of the container is not flat, but slightly tapered or funnel-shaped. The container shown is obtained using four valves and angles a and / about 80 °,
    A piece of material web can be cut so that more than six valves 5 are formed (for example, eight or more valves can be obtained).
    When a piece of material web is made of circular woven fabric, it can be used so that either a container is obtained having side seams 9 and seamless eyelets 3, or a container not having side seams but with sewn eyelets. The incision lines 6 and, therefore, the bottom seams 4 may deviate from the straight line, since the incision lines may consist of straight sections and curvatures.
    The proposed bottom design can be used for other types of flexible containers, for example for containers with sewn eyelets, made as one piece, but whose width is less than half the peripheral part of the container.
    Such an embodiment of the container is possible when the bottom seams 4 are interrupted so that in the central part of the bottom there is a small seamless area to form an outlet, but then the bottom has the shape shown in FIG. 4 and 5. This design example has some advantages for unloading.
    The proposed bottom design allows the flexible containers to be subjected to large loads as compared to the known ones, and they have the same strength when using four bottom flaps having the same dimensions, two of which are made of two halves of the flaps.
    When designing containers, you need to choose the corners at the top of the valves.
    so that the sum of is less than 360 ° in order to maximize the use of the bottom structure for the proposed flexible container. When comparing containers with bottoms formed from
    valves having an angle of α-90 °, with containers having an angle at the top of the valves "85-80 °, it has been established that the containers according to the invention withstand a load of 18-25% more than
    containers having an angle of 90 °.
    Further attempts to determine the limits for the angles a and / i show that there is no exact upper limit. Practically the lower limit for these angles can be
    get when the sum of the upper corners is 240-280 °.
    Practical attempts to fill fluid containers with flexible cement according to the invention without prior
    filling with air at the loading site showed that the cone-shaped shape, which the container at the beginning of loading acquires, automatically centers the flowable cement, and then the container is gradually filled without tilting if it is freely suspended from the hook (Fig. 6).
    The formation of dust during the loading of such a container by the flowing cement is so insignificant that it is not necessary to install a special device for removing dust on the feed pipe.
    During unloading of containers filled with cement, it has been determined that the containers are completely empty without
    the use of any additional manual labor, so that container contamination with fibers is minimal.
    The containers offered are robust and easier to manufacture, since the new bottom structure does not require more material. Due to the fact that the container can withstand a large load, it can be made of a lighter and, therefore,
    cheaper material.
    Formula 1 and 1. A flexible container for storing and transporting bulk material, made of a piece of flat-woven or circular woven tubular web, containing side walls which are integral with at least one a load gripping eye and a bottom formed by at least four interconnected pairs of equally-sized triangular valves, which are a continuation of the side walls and formed cut lines, placed around the center of the bottom, are t pour improve the strength and ease of operation, the magnitude and angles at the apex of a pair of triangular flaps at the corners sum value / 3 at the top of the other pair of the triangular flaps is a value greater than 240 and less than 360 °, and the bottom is made conical.
    2. A container according to claim 1, characterized in that the bottom is square in shape and
    g
    the angles a and / with the tops of the valves in different pairs are equal to each other and are 70 °.
    3. The container according to claim 1, characterized in that the bottom of the container has a hexagonal shape and is formed by six valves, the angle at the apex of each of which is 40 ° and 60 °.
    4. The container according to claim 1, characterized in that the bottom has a rectangular shape, the angles a and / J at the tops of the valves in different pairs are not equal to each other.
    5. A container according to claim 1, characterized in that an outlet is formed in the central part of the bottom.
    权利要求:
    Claims (5)
    [1]
    Claim
    1. A flexible container for storing and transporting bulk material, made from a piece of web of flat-woven or round-woven tubular material, containing side walls made at least one load-lifting eye and a bottom formed by at least four equally triangular interconnected pairs valves that are a continuation of the side walls and formed by cut lines placed around the center of the bottom, about τη and chto that in order to increase strength and comfort in operation, the angle a at the apex of one pair of triangular valves in total with the angle β at the apex of another pair of triangular valves is a value greater than 240 and less than 360 °, and the bottom is made conical.
    [2]
    2. The container according to claim 1, characterized in that the bottom has a square shape and the angles a and β at the tops of the valves in different pairs are equal to each other and are 70 ° <ά = β <90 °.
    [3]
    3. The container according to claim 1, characterized in that the bottom of the container has a hexagonal shape and is formed by six valves, the angle at the apex of each of which is 40 ° <a <60 °.
    [4]
    4. The container according to claim 1, characterized in that the bottom has a rectangular shape, the angles a and β at the tops of the valves in different pairs are not equal to each other.
    [5]
    5. The container according to claim 1, wherein the outlet is formed in the central part of the bottom.
    1Ί
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1724010A3|1992-03-30|Dry material storage and transportation flexible container
    US4817824A|1989-04-04|Collapsible bulk container
    US5104236A|1992-04-14|Scrapless collapsible bag with circumferentially spaced reinforced strips
    US5073035A|1991-12-17|Bulk carrying bag
    DE2905840A1|1979-08-30|CONTAINER
    US4521911A|1985-06-04|Bulk container
    CS209438B2|1981-12-31|Plastic container for the transport and storing loose materials
    US4191229A|1980-03-04|Flexible container for transportation and storage of bulk materials
    US5203633A|1993-04-20|Spread strap flexible bulk container
    US5924796A|1999-07-20|One piece flexible intermediate bulk container and process for manufacturing same
    US4241947A|1980-12-30|Vehicle with transformable loading area
    US20060104546A1|2006-05-18|Container bag
    EP0041586B1|1984-11-21|Flexible container for the transportation and storage of bulk material
    IE51973B1|1987-05-13|Flexible container for bulk material
    EP0378820A1|1990-07-25|Container for lifting, transportation and storage of bulk material
    US4944604A|1990-07-31|Flexible container comprising several lifting means
    JP6822795B2|2021-01-27|Flexible container
    EP0300539A1|1989-01-25|Double-walled bag of high loading capacity
    US5151076A|1992-09-29|Manufacturing method for a flexible container
    EP0207954B1|1990-02-28|Flexible container with separate lifting area
    EP0111852A2|1984-06-27|Flexible container for transport and storage of bulk material and a method for its manufacture
    KR820000209B1|1982-03-05|Flexible container for transportation and storage of bulk material
    SU1717490A1|1992-03-07|Soft container for loose materials
    GB2168949A|1986-07-02|Flexible bulk container
    TH7974B|1998-04-23|&#34;Self-contained packaging with improved lower and upper suspension&#34;
    同族专利:
    公开号 | 公开日
    BR8404345A|1985-07-30|
    MX161584A|1990-11-13|
    US4584705A|1986-04-22|
    DE3469880D1|1988-04-21|
    EP0134575A1|1985-03-20|
    DK152711C|1988-10-24|
    AT33011T|1988-04-15|
    JPS6068285A|1985-04-18|
    NO833138L|1985-03-04|
    PT79139B|1986-06-03|
    EP0134575B1|1988-03-16|
    HU191718B|1987-03-30|
    NO152870B|1985-08-26|
    HUT39395A|1986-09-29|
    IN161266B|1987-10-31|
    DK417884D0|1984-08-31|
    UA7089A1|1995-06-30|
    ZA846248B|1985-03-27|
    FI843207A0|1984-08-14|
    KR850002234A|1985-05-10|
    TR22022A|1986-01-13|
    DK417884A|1985-03-02|
    JPH0451434B2|1992-08-19|
    RO90574A|1986-12-10|
    CS639284A2|1990-09-12|
    PT79139A|1984-09-01|
    CA1210711A|1986-09-02|
    DK152711B|1988-04-25|
    AU571888B2|1988-04-28|
    FI70864C|1986-10-27|
    ES289577U|1986-04-01|
    FI843207A|1985-03-02|
    AU3230384A|1986-03-06|
    NO152870C|1985-12-04|
    CS274408B2|1991-04-11|
    GR80224B|1985-01-02|
    IE842006L|1985-03-01|
    ES289577Y|1986-11-16|
    MA20219A1|1985-04-01|
    IE57041B1|1992-03-25|
    PL249404A1|1985-05-07|
    FI70864B|1986-07-18|
    KR890004517B1|1989-11-10|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB278276A|1927-05-02|1927-10-06|Wilhelm Ernst|Improvements relating to the construction of bags for containing cement, lime or the like|
    US3119548A|1961-06-08|1964-01-28|Dale Products Plastics Ltd|Plastic bags|
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    NO138134C|1976-06-28|1978-07-12|Norsk Hydro As|FLEXIBLE CONTAINER FOR TRANSPORT AND STORAGE OF MASSAGE PRODUCTS, AND PROCEDURE FOR ITS MANUFACTURE|
    NO143399C|1978-06-01|1981-02-04|Norsk Hydro As|INCREASED FLEXIBLE CONTAINER.|
    DE2927939A1|1979-07-11|1981-01-29|Adolf Lesk|Flexible material suspended silo - is formed from number of widths with equal number of converging bottom contours|
    FI57381C|1979-09-28|1980-08-11|Rosenlew Ab Oy W|FLEXIBEL BEHAOLLARE FOER TRANSPORT OCH LAGRING AV MASSAGODS|
    FI57382C|1979-09-28|1980-08-11|Rosenlew Ab Oy W|FLEXIBEL BEHAOLLARE FOER TRANSPORT OCH LAGRING AV MASSAGODS|
    US4312392A|1980-03-19|1982-01-26|Toyama Industry Co., Ltd.|Bag and process for manufacturing the same|
    JPS5738158A|1980-08-21|1982-03-02|Ricoh Co Ltd|Nozzle plate and manufacture thereof|
    US4521911A|1984-01-06|1985-06-04|St. Regis Corporation|Bulk container|CH661701A5|1983-11-09|1987-08-14|Imag Verlags Ag|CONTAINER FROM A TUBE TUBE.|
    ES296232Y|1984-12-21|1988-04-16|Norsk Hydro A.S.|A FLEXIBLE CONTAINER FOR THE TRANSPORT AND STORAGE OF BULK MATERIAL|
    GB8520725D0|1985-08-19|1985-09-25|Nattrass Hickey & Sons Ltd|Flexible bulk containers|
    NO161111C|1987-04-24|1989-07-05|Norsk Hydro As|LARGE BAG WITH AT LEAST TWO INTEGRATED LIFTING BELTS.|
    US4790029A|1987-06-05|1988-12-06|Custom Packaging Systems, Inc.|Collapsible bag with square ends formed by triangular portions|
    US5236531A|1988-05-17|1993-08-17|Altech Co., Ltd.|Manufacturing method of square bottom containers|
    NO165720C|1988-12-21|1991-04-03|Norsk Hydro As|PROCEDURE FOR MANUFACTURING MAJOR BAGS.|
    NO166358C|1989-02-28|1991-07-10|Norsk Hydro As|LARGE BAG WITH IMPROVED BOTTOM AND TOP.|
    US5047001A|1989-07-28|1991-09-10|Willis James E|Method for constructing a reversible duffle bag|
    US5702340A|1993-12-02|1997-12-30|Super Sack Mfg. Corp.|Method of manufacture of a glued bottom bulk container|
    JPH07315481A|1994-05-30|1995-12-05|Nippon Matai Co Ltd|Flexible container bag|
    US5758973A|1996-11-19|1998-06-02|Custom Packaging Systems, Inc.|Bulk bag with reinforced lift straps|
    US6347886B1|1999-10-18|2002-02-19|Charter Medical, Ltd.|Disposable contoured tank liner and method of production|
    FR2831145B1|2001-10-19|2004-08-27|Filtisac France|METHOD FOR MANUFACTURING A FLEXIBLE CONTAINER FOR RECEIVING BULK PRODUCTS, AND CONTAINER THUS OBTAINED|
    US20040017953A1|2002-03-19|2004-01-29|Bell Thomas G.|Methods and apparatus for storing items in selectively shaped bags|
    FR2865117B1|2004-01-15|2006-04-14|De Boisse Genevieve Mortemard|EXTENSIBLE FABRIC BAG FOR TRANSPORTING FOOTWEAR OF MODEST WEIGHT LOADS|
    EP2571368A1|2010-05-18|2013-03-27|Farruggio, Patricia Ann|Tin liner|
    ES2600166B1|2015-07-24|2017-11-17|Pfm Ibérica Packaging Machinery, S.A.|A process for the manufacture of flexible containers comprising a bottom base of essentially rectangular configuration|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    NO833138A|NO152870C|1983-09-01|1983-09-01|LARGE BAG WITH TRACT-SHAPED BOTTOM.|
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