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WO2020083539A1 - Arrondissement d'éléments à maille coulée - Google Patents

Arrondissement d'éléments à maille coulée Download PDF

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Publication number
WO2020083539A1
WO2020083539A1 PCT/EP2019/067743 EP2019067743W WO2020083539A1 WO 2020083539 A1 WO2020083539 A1 WO 2020083539A1 EP 2019067743 W EP2019067743 W EP 2019067743W WO 2020083539 A1 WO2020083539 A1 WO 2020083539A1
Authority
WO
WIPO (PCT)
Prior art keywords
drop stitch
fold
drop
component
bow
Prior art date
Application number
PCT/EP2019/067743
Other languages
German (de)
English (en)
Inventor
Ernstfried Prade
Daniel Weinberger
Original Assignee
Ernstfried Prade
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
Priority claimed from DE102018010130.5A external-priority patent/DE102018010130A1/de
Application filed by Ernstfried Prade filed Critical Ernstfried Prade
Priority to EP19737044.8A priority Critical patent/EP3870506A1/fr
Priority to CN201980070304.6A priority patent/CN112955375A/zh
Priority to US17/287,426 priority patent/US20210354785A1/en
Publication of WO2020083539A1 publication Critical patent/WO2020083539A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B7/00—Collapsible, foldable, inflatable or like vessels
    • B63B7/06—Collapsible, foldable, inflatable or like vessels having parts of non-rigid material
    • B63B7/08—Inflatable
    • B63B7/082—Inflatable having parts of rigid material

Definitions

  • the invention relates to a drop stitch element according to the preamble of claim 1 and a method for producing a drop stitch element according to claim 10.
  • This special drop stitch material is manufactured in webs by design.
  • the starting material is open on all sides perpendicular to the stretched polyester threads, must be provided with side walls in order to obtain a closed body.
  • This closed body can be filled with air. Due to their construction, these air-filled bodies are completely flat and, seen along the surface, have no curved elements.
  • Inflatable watercraft such as Kayaks, canoes and surfboards can be made from drop stitch material.
  • a typical kayak has a bottom that is cut in the boat's longitudinal axis so that it determines the shape of the boat.
  • the two side walls are glued to the outside of the floor.
  • the side walls bulge in a longitudinal direction, ie a direction of travel, with this adhesive method in accordance with the shape of the floor.
  • the bow and stern are usually tapered to a point, for example so pointed that a hydrodynamically optimized bow structure can be formed, since a drop stitch material does not allow a pointed taper to occur.
  • the inclination of the side walls is achieved by an additional glued outer skin, which is inflated after the inflation and the associated spacing of the floor and side wall and keeps the side wall at a predetermined stable angle, which is usually chosen so that the boat is wider and above is narrower at the bottom.
  • the biggest problem with this design is the airtightness of the boats on the one hand and the enormous manual work of the precise bonds to be made on the other. To do this better illustrate the length of the bonds of a five meter long kayak:
  • Such a kayak consists, among other things, of two side walls, on each of which a dropstitch thickness corresponding to the closing strip is to be glued to the end faces. That makes four side strips with left and right gluing what
  • Adhesive is attached to be sealed.
  • the object of the invention is therefore to create a drop stitch element with as few openings as possible - and thus adhesive surfaces - for improved airtightness, which allows the flat-lying drop stitch component to be rounded.
  • the object of the invention is also a method for its production.
  • the drop stitch element according to the invention is designed such that at least one fold is made in a drop stitch component. This folding is variable in its depth, that is, in the overlap of the parts lying opposite one another by the folding.
  • the overlapping areas of the drop stitch component that is to say the areas of an outer skin that are either the top or bottom of the drop stitch material, are glued to one another.
  • the depth of the fold changes depending on the position and / or the position of the fold in the drop stitch element. Regardless of the depth of the fold, however, it is oriented in the inner region of the drop stitch element or the drop stitch component and is introduced either on one side and / or on both sides, for example alternately, or else on further sides of the drop stitch component .
  • the folding begins on the surface, that is to say on a ceiling or on a floor of a drop stitch material of a drop stitch component, and therefore has a minimal depth at this point, that is to say a very small one
  • Folds are provided which are introduced side by side on one side, i.e. on the top or bottom side, of the drop stitch material. These folds are also glued together. Wedge-shaped punchings, that is to say a material removal of the drop stitch material from the ceiling to the floor, or vice versa, in a configuration which tapers from the outside inward, have proven to be particularly advantageous
  • drop stitch body also referred to as drop stitch body
  • the folds can be covered with a blank.
  • Flierzu for example, a material similar to the ceiling or the floor is glued over the seam created during the folding or fastened to it in some other way.
  • An even more even surface structure than that achieved by the folds compared to a double-bonded structure known from the prior art can be achieved in this way.
  • the folds are introduced alternately, that is to say on both sides, into the drop stitch component.
  • the resulting drop stitch element therefore has, for example, a double hull, since the fold is introduced and glued to the ceiling and floor of the drop stitch component.
  • two drop stitch components each with at least one fold, can be aligned such that a solid element located between the two drop stitch components, for example a ring-shaped element, of the two Drop stitch components are spanned and these are spaced apart from one another in at least one, preferably an upper, central area, while the lower area preferably forms a continuously flush termination or a transition between the two drop stitch elements.
  • a pointed stern and a pointed bow it is preferred if there is a small distance on the end faces of the drop stitch components, at the point at which they are located have each other, that is, in a transition area from the tapering, upper area to the lower area, a rigid bow or stern element is attached.
  • This bow or stern element is encased in a waterproof cover which tensions when the drop stitch components are inflated and forms a pointed bow and a pointed stern on the drop stitch element with the bow and stern elements.
  • stiff front and rear elements are resiliently attached to the end faces, that is to say the front and / or rear of the drop stitch element or to the drop stitch components.
  • a method according to the invention for joining a drop stitch element is distinguished by an adhesive technique.
  • This new type of adhesive technology consists in the fact that, for example, a boat, which so far consists of three independent bodies, namely two
  • drop stitch bodies there is only one or two drop stitch bodies built in the form according to the invention. These drop stitch bodies have less gluing, which improves airtightness and brings a significant reduction in production costs.
  • Another advantage of the method according to the invention is that these bonds are freely accessible for any repairs in the event of a leak, while in the case of previously used adhesive methods, the defective adhesive points are no longer accessible in the event of damage, since they are covered by an outer skin.
  • one side of the drop stitch body is folded inwards, which leads to the drop stitch body being bent. Furthermore, the folding is made in one
  • Curve run which leads to a bulbous shape of the drop stitch body.
  • mirror-symmetrical sides can be put together into one part.
  • the advantage of this design is that multiple folds can be glued into the left and right individual halves more easily and quickly. Punching on areas that need to be rounded off has proven to be very practical. A wedge of the drop stitch material is removed, ie punched out, the sides are put back together and the seam in the drop stitch material is closed with a cover.
  • the fold gluing can be formed with a plurality of folds lying next to one another, which begin on the surface of the drop stitch material and extend in a curve to a maximum depth, and then return to the drop stitch surface, for example for a bulbous rowboat.
  • the middle segment consists of an outer robust woven cover with an inner one
  • the middle segment can also consist of only one inflatable plastic cover. There are also several as a middle segment
  • Folds on the top of boats can also be covered with a top layer for visual reasons.
  • FIG. 1 shows a cross section through a drop stitch element according to the prior art.
  • FIG. 3 is a perspective view of a row boat
  • Fig. 5 is a sectional view of a rowing boat
  • 6 is a top view of a row boat; 7 shows a blank for a rowboat;
  • Fig. 13 is a two-part double hull boat
  • Fig. 14 is a long watercraft.
  • FIG. 1 shows a cross section through a kayak made of drop stitch material, which is manufactured according to the current state of the art, consisting of a left side wall 1, a right side wall 2 and a bottom 3. Strips 4a, 4b, 4c glued airtight. All bonds are also taped with a sealing tape 5 for better air tightness.
  • the two side walls must be kept stable in their inclined shape with a base layer 6 and an internal adhesive 7.
  • Figure 2 shows a cross section through a kayak, which is glued with the inventive method.
  • FIG. 3 shows a perspective view of a rowing boat in which, in addition to an upper edge 11, an upper circumferential fold 12a and a lower circumferential fold 12b are glued in, as a result of which the inside of the drop stitch element is shortened while the outside remains unabridged.
  • the folds 12a, 12b end in the 1st quarter of the rowing boat, so that from there the two sides of the drop stitch element remain flat, that is to say not rounded, and thereby form a straight, tapering bow shape 13.
  • a deeper fold 12b results in a stronger rounding in a transition region from the floor to the side walls than is produced by the upper fold 12a in a central region of the side walls. This shape is illustrated in Figure 5 below.
  • FIG. 3 The tapering bow shape from FIG. 3 can also be seen in FIG.
  • FIG. is a perspective view of the upper fold surface 12a and the lower fold surface 12b. While the lower fold 12b extends to the maximum depth of the drop stitch wall and therefore causes a strong crease, the upper fold 12a is narrower, which leads to a weak crease. Both folds follow a calculated curve that is responsible for the belly of the rowboat. They start on the surface of the inner wall 12c, 12d and extend to the maximum depth 12e, 12f of the drop stitch element, and then return to the surface of the inner wall in a curve. This results in the shape of the rowing boat, which is shown in perspective in FIG. 3.
  • FIG. 5 shows a view in section through the rowing boat according to one of FIGS. 3 or 4 with its two folds 12a and 12b.
  • the upper fold 12a with shallow depth leads to a slight kink.
  • the lower fold with great depth 12b leads to a strong crease.
  • the lower fold 12b is deeper than the fold 12a, so that there is a greater rounding of the drop stitch material, which gives the rowing boat its typical shape.
  • the rowing boat can also be made from two mirror-symmetrical drop stitch components. This is illustrated by the central line, which indicates a glue point.
  • Reference number 33 denotes a cover layer which covers the folds 12a, 12b. Such a cover layer 33 can be used in all exemplary embodiments to cover the respective folds.
  • FIG. 6 shows the rowing boat in plan view with a left half 14 and a right half 15 and the folds 12a, 12b. Both halves 14 and 15 and consequently also the folds 12a and 12b are mirror-symmetrical to one another.
  • Punching 15a is carried out on both halves 14 and 15, material being removed in each case, so that an approximately wedge-shaped cutout shown in FIG. 7 and tapering from the outside inwards is removed from the drop stitch material. Before the folds 12a, 12b are glued together, the cutout 15a is joined to form a cutout 15b and sealed with an airtight cover 15c.
  • FIG. 7 shows the cut, that is to say the unglued and unfolded drop stitch material with the left half 14 of the rowing boat, the right mirror-symmetrical half 15 and the folding surfaces of the folds 12a, 12b.
  • the punched-out areas 15a are shown in a possible initial shape which tapers from the upper edge 11 to the bottom of the rowing boat.
  • the cutout 15a is in each case in
  • FIG. 8 shows the bow with the adhesive bond according to the method according to the invention, in which the right side wall comes to lie next to the left side wall, which are bonded to one another.
  • the left end face 16a of the left side wall and the right end face 16b of the right side wall result in a nose of twice the width of the drop stitch side wall.
  • Figure 9 shows a waterproof envelope 17 as a pointed bow.
  • a waterproof cover 17 is provided, which is glued to the drop stitch walls with its rear end 18.
  • the sleeve 17 is over the end faces 16a and 16b and a little overlapping over the two
  • FIG. 10 shows a stiff bow and stern element 19.
  • the stiff bow and stern element 19 is inserted with its two ends into a fastening tube 20 and is constantly pressed forward against the sleeve 17 by a spring element, which is located in the fastening tube 20, so that the latter is tensioned. If the watercraft strikes a solid object, the rigid bow and stern element 19 is pushed back into the fastening pipes 20, so that the pipe length A is shortened to pipe length B. The sheath 17 is also shortened and deformed. After the impact, the spring element push the rigid bow and stern element 19 forward again, so that the sheath 17 tensions itself automatically and springs back into the tapering shape (see FIG. 9), which is necessary for good hydrodynamics.
  • FIG. 11 shows in perspective, in side view and top view, a rigid bow and stern element 19 which is fastened with two tabs 21 to the end faces of the drop stitch side walls.
  • the rigid bow and stern element 19 is held and / or guided, for example, with a strut between the end faces 16a and 16b of the side walls by the tabs 21 which are fastened with one side to one of the end faces 16a and 16b.
  • the rigid bow and stern element 19 clamps between the end faces of the side walls and the waterproof casing 17, so that a solid structural unit with a pointed bow is created.
  • the pointed bow is formed by the sheath 17.
  • the pointed sheath 17 extends, stretched over the rigid bow and stern element 19, as an extension of the side walls at the height of the upper edge 11.
  • the rigid bow and stern is -Element 19 held movably in the tabs so that it is towards one the side walls can be folded down for easy transport without having to completely disassemble them.
  • the rigid bow and stern element is forced back into its forward end position, which is delimited by the casing 17.
  • FIG. 12 show a particularly long, narrow watercraft in a view, side view and top view, the side wall 22 of which ends in the glued-on, waterproof casings 17 on both sides, that is to say both on the bow and stern side, and on the starboard and port sides.
  • a removable seat 23 is located in the middle and the bow part of the boat is stabilized by an inflatable middle segment 24 around which the side walls 22 bend slightly.
  • the stern part of the boat is stabilized by two inflatable middle segments 24, which are glued side by side, around which the side walls 22 also bend slightly.
  • Another top view shows an alternative embodiment of the stabilizing central segments.
  • annular solid elements 25, which are designed with a decreasing diameter from the center of the watercraft to the bow and stern, the desired shape of the watercraft is achieved while increasing the stability.
  • a lower fold 12b begins in the front third of the surface of the inner side 12c of the side wall 22 and widens in a rounded shape in the middle of the boat to a maximum depth 12e. The effects of the depth of the folding have already been described in detail in the description of FIGS. 3 to 5.
  • FIG. 13 shows a two-part double hull boat in a view and a top view with a bottom fold 26 and a top fold 27.
  • the different depth of both folds in the boat's longitudinal axis enables the round outline 28 of the swimmers.
  • the bridge 29 is part of the inner side wall 30 of the float.
  • the top fold 27 forms the narrow underside of the respective swimmer of the double hull boat in the assembled state of the fold.
  • top-side fold 27 different depth of the top-side fold 27, the shape shown in FIG.
  • a bottom fold 26 is required to form a bridge 29 that connects the two floats of the double hull boat. Flierzu is in the
  • an underside fold 26 which changes in depth, is introduced.
  • the bridge 29 bends from the outline 28 of the float in such a way that it runs approximately parallel to a base, not shown, on which the two floats stand. In this way, a double hull boat can be easily manufactured from two drop stitch components. A configuration with only one drop stitch component would also be conceivable.
  • Figure 14 shows a long watercraft in view, top view and side view on which one sits and paddles. It has a central fold 31 on its upper side, which produces a keel 32 on its lower side. The keel 32 can be of different depth due to the changed depth of the fold. A cover layer 33 covers the fold underneath.
  • a drop stitch element in which at least one fold that is variable in depth and is glued is introduced into a flat drop stitch component, so that the outer skin of the drop stitch component is on one side, or alternately on both sides, depending on the position of the fold, of the drop stitch component.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Toys (AREA)

Abstract

L'invention concerne un élément à maille coulée, dans lequel au moins un pli collé (9, 10) dont la profondeur varie, est introduit dans un composant plat à maille coulée (8), de sorte que le revêtement extérieur du composant à maille coulée puisse être replié d'un côté, ou réciproquement des deux côtés, en fonction de la position du pli, du composant à maille coulée.
PCT/EP2019/067743 2018-10-25 2019-07-02 Arrondissement d'éléments à maille coulée WO2020083539A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP19737044.8A EP3870506A1 (fr) 2018-10-25 2019-07-02 Arrondissement d'éléments à maille coulée
CN201980070304.6A CN112955375A (zh) 2018-10-25 2019-07-02 漏针缝编元件的倒圆
US17/287,426 US20210354785A1 (en) 2018-10-25 2019-07-02 Rounding of drop-stitch elements

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102018008400.1 2018-10-25
DE102018008400 2018-10-25
DE102018010130.5A DE102018010130A1 (de) 2018-10-25 2018-12-24 Verrundung von Dropstitch-Elementen
DE102018010130.5 2018-12-24

Publications (1)

Publication Number Publication Date
WO2020083539A1 true WO2020083539A1 (fr) 2020-04-30

Family

ID=67211700

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2019/067743 WO2020083539A1 (fr) 2018-10-25 2019-07-02 Arrondissement d'éléments à maille coulée

Country Status (1)

Country Link
WO (1) WO2020083539A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001082004A (ja) * 1999-09-16 2001-03-27 Achilles Corp エアマットの折曲げ構造
WO2013057395A1 (fr) * 2011-10-21 2013-04-25 Sas Tiwal Coque gonflable et engin flottant, notamment de type dériveur
US8800466B1 (en) * 2010-06-23 2014-08-12 Navatek, Ltd. Inflatable watercraft with reinforced panels
US20170008602A1 (en) * 2014-10-03 2017-01-12 Sea Eagle Boats, Inc. Drop stitch inflatable boat

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001082004A (ja) * 1999-09-16 2001-03-27 Achilles Corp エアマットの折曲げ構造
US8800466B1 (en) * 2010-06-23 2014-08-12 Navatek, Ltd. Inflatable watercraft with reinforced panels
WO2013057395A1 (fr) * 2011-10-21 2013-04-25 Sas Tiwal Coque gonflable et engin flottant, notamment de type dériveur
US20170008602A1 (en) * 2014-10-03 2017-01-12 Sea Eagle Boats, Inc. Drop stitch inflatable boat

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