DE7108840U - Deck connection for boat hull - Google Patents

Description

Ing.Helmut StÖberl * _n -> *

23rd September 1971

8201 Eggst.ätt-Bachham

· Ί * ϊί- = Λ Εϊ “-. , -.- ί- ₌ LH

The innovation relates to a deck connection for a boat hull, in particular one with a two-shell construction with foam interlayer.

There are already numerous embodiments of connections Known between deck and hull, usually glued or glued connections are used. Tm the occurring bending moments *, shear forces and torsion moments, In order to be able to accommodate a sailing boat in particular, additional longitudinal stringers, triangular support bodies, edge strips and the like were previously used in the area of the deck connections, which led to shear and expensive constructions, whereby the connections could only be made by hand. Frequently but fractures, cracks and leaks occurred anyway, because the edge connection because of the elastic deck Committing high bending moments has to be transferred to the hull edge. Particular difficulties arose when building extreme Lightweight boat bodies for sports purposes, which, when exposed to the highest levels of wind pressure and waves, can ride out the Crew and punctual attack of the pods and shrouds had to maintain a high degree of dimensional rigidity.

s In an effort to meet this requirement, Boots

body developed in two-shell construction with a rigid foam layer between them. In the process, high strengths were despite being thinner Walls scored. However, the attachment of the deck presents particular difficulties here, since the three layers are cut off to achieve a straight deck and connecting edge

had to be. A simple glue connection had to be made here

ruled out because the point forces to be transmitted are local i
Cracking generated, resulting in the ingress of water.

j An inner circumferential longitudinal auger could only absorb the forces

transferred to the inner shell and was also too heavy for a sports boat, which, as the construction of racing catamarans shows, resort to the old method of seaming the ship's walls had to because the usual stringers were too heavy and showed poor connections.

This is where the innovation kicks in by making it its task to create a deck connection, which in particular In the case of a two-shell boat hull with a foam intermediate layer, all forces can be safely transmitted under crack-free Sealing the connection point results. Furthermore, the deck connection according to the invention should be free of defects Connection are created so that in play and deformation free interaction of deck and hull, even under the highest loads and even when long and narrow and low hull, as is common in catamarans, a rigid hull is created that is easy can be produced by appropriate shaping without reworking, e.g. in% of a two-part mold.

The innovation here is that the connection of the Decks with the hull as a wedge-shaped and / or single or multiple undercut, circumferential groove for receiving the in the connection area correspondingly wedge-shaped and / or one or more undercut upper boat hull or Decksrar.des is formed.

Through this training, simply Aufeipajiderpressec the two parts to be connected a secure connection can be created, which as a molding or Einforniung in the

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• II · »· ft tft

t · t »Il 1 ·« I.

P parts to be connected by means of a corresponding

ϊ Position shape can be easily produced in plastic. the

f- connection point can also be glued, welded

*> his or the like have further connection, whereby one

; Bringing a hardening plastic order into the Ver

binding zone complete tightness and all-round connection is achieved and by means of the wedge shape or the elastically pressed Undercuts a bias of the adhesive bond is achieved, which is difficult to control, to strong

• ^fi rounded hulls impossible attaching of screw

v force or the like. Avoids clamping devices.

It is advantageous in the area of the connection point, especially « of the undercut the foam intermediate layer with higher § Elasticity developed, so that even if the shape of the parts to be joined together differs, due to manufacturing differences or in the case of a strong undercut, a sufficient * adhesive pressure via a corresponding elastic deformation

is achieved.

The innovation offers particular advantages in the case of boat hulls which have a sword case, the support of which is known offers particular difficulties. Here, the innovation suggests that the deck also in the area of the sword case has at least one wedge-shaped and / or single or multiple undercut connection point with the sword case walls, so that the connection is securely supported against all bending, pulling or pushing forces.

The innovation also brings significant advantages, vreitn for stiffening an elongated lightweight floating body, for example for a catamaran, the boat body has a continuous central longitudinal rib. The innovation here is that the central longitudinal rib goes through with the deck

at least one wedge-shaped, and / or single or multiple undercut connection point is connected.

This allows for a high degree of rigidity and safety against falling can be achieved because now two longitudinal hollow bodies are formed with a common central wall.

The innovation can also be advantageously developed in that the connection point to form a rubbing strip, Ram ledge, one or more tread areas, a longitudinal stringer or the like. further thickened and / or widened is. Here, in the thickening, widening or the like. additional reinforcement layers, fiberglass strands, Metal profiles or the like. be inserted.

The connection profiles can advantageously be one or Conical on both sides, e.g. with a small angle of inclination, hook-shaped on one or both sides, fir tree-shaped, spherical head-shaped or the like. be undercut, as well as one or more have the aforementioned connection profiles running in parallel.

The innovation is chfolgend ne with reference to drawings in the context of several exemplary embodiments described in greater detail.

In the drawings show:

1 shows a schematic cross section through a boat hull with deck

Fig. 2 to 7 a detail cut through different embodiments of the connection point

8 and 9 show a detail section through a connection point between deck and central longitudinal rib

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10 shows a detail section through a connection point between deck and sword case

Fig.il, lla and 12 each have a detailed section through a Junction with occurs sf la'.hen

Fig, 13, l4, la, 15 each cut a detail through a Connection point in a modified version shape.

In the following description, from the further features and advantages of the innovation can be found, reference numerals are used as follows:

1 hull

2 deck

3 connection point

4, 4 'outer layer

5, 5 'hard foam intermediate layer

6, 6 ¹ inner layer

7 Edge of the hull

8 groove

9 outer edge

10 inner margin

11 Seal

12 insert

13 hook-like projection

14 central longitudinal rib

15 J edges of the groove

16 sword case slot

17 sword case wall

18, 18 ", 18" platform

19, 19 'reinforcement laminate

'20 '"Extension"

21 shoulder.

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In FIG. 1, a boat hull is schematic in cross section shown. The hull 1 has, for example, a U-shape Cross-section on, like this one in particular for fast and elongated boat hulls are used.

The cavity of the hull 1 is closed off at the top by a deck 2 which is attached to circumferential connecting parts 3 on the edge of the hull 1. The boat body 1 consists of an outer, by reinforcement mats, fiber inserts or the like. reinforced plastic outer layer 4, which is followed by a rigid foam intermediate layer 5, which is covered in the direction of the boat body interior by an inner layer 6, which also reinforcement mats, fibers or the like. may have, and wherein the Bootakörper, made for example in a two-part form by one or more plastic layers are applied to the open mold parts, in which the reinforcing fibers or the Verstärkungematten least "are partially embedded. After the mold has been closed, curable foam is filled into the cavity between the two layers, for example under pressure, so that all layers are firmly connected to one another. The deck 2 is produced in the same way, so that the deck 2 also has an outer layer 4 ¹ , a rigid foam intermediate layer; 5 'and an inner layer 6 ¹ .

Since the deck 2 and e'er hull 1 are very light and therefore are relatively thin-walled, the connection between the two parts is of great importance, as this Connection only a dimensionally stable, watertight, integrated boat hull can be created without lengthy adjustment work or difficult-to-control adhesions are required ...are,..

-T-

To produce a tight connection, which also has to take on considerable bending moments and shear forces as well as tensile forces in the air, the upper edge 7 is shown in a first embodiment, as shown in r'JLg.Ä X ti giuiicx tsüi rianslab The hull 1 is designed to taper in a wedge shape on both sides, a wedge with a small angle of inclination being used. The outer layer 4 runs over the wedge walls into the inner layer 6 so that the card foam layer 5 is essentially covered. The wedge walls can taper to a point or, as shown in FIG. 1, merge into an upper flat surface.

Accordingly, the deck 2 int at its circumferential edge with a thickened portion in the region of the joint 3 is provided, wherein in the underside of the deck 2 vzid a corresponding wedge walls of the hull edge 7, this fully receiving groove 8 is formed such that the outer layer k 'of the Deck 2 is pulled slightly downwards in the area of the connection point 3 and forms a circumferential outer edge 9, from where the outer layer k ¹ runs upwards to form an outer wedge wall and then basically the groove 8 into the inner layer 6 'of the deck 2 that extends up to this point passes, which from there again runs downwards to form an inner wedge wall, so that a total of a downwardly open groove 8 is formed. The inner wedge wall is drawn down to form an inner edge 10 and thus comprises the wedge-shaped part of the edge 7 of the hull 1. The inner edge 10 continues upwards and merges into the inner layer 6 of the deck 2. The spaces between the outer layer 4 * of the deck and the inner layer 6 'of the deck 2 are completely filled with a rigid foam layer with binding on all sides.

During assembly, the wedge-shaped edge 7 of the hull 1 and / or the groove 8 of the deck 2 is

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fabric, glue or d ^ l. coated, after which the two parts are pressed together. Due to the low wedge inclination the wedge walls result in an extraordinarily strong connection, Wherein different foi "niäi> whitings by means of elastic The deflection of the parts resting against one another is compensated for, which is achieved by the foam intermediate layer 5 or 5 ' is made possible.

According to FIG. 3, it is also possible to provide the upper horizontal part of the edge 7 of the boat hull 1 with an additional groove profile, in the area of which the inner layer 6 merges into the axis layer k of the boat hull 1.

According to FIG. 3, the deck 2 and the edge 7 of the hull 1 in the area of the connection point 3 are designed with a "" circular cross-section in such a way that when the two parts 1 and 2 are pressed together, the outer edge 9 and the inner edge 10 of the groove 8 the edge bead 7 of the boat hull 1 can snap in elastically resiliently and enclose the latter. The addition of adhesive can optionally be dispensed with. If necessary, a circumferential seal H in the form of a soft rubber strip, plastic coating or the like can also be used to improve the seal. be received in a seal receiving groove formed in the upper region of the edge 7 of the boat hull 1 or on the side parts of the groove 8. With this design of the connection point 3, a rubbing strip, ram strip or the like can be formed by corresponding bulging of the outer layer k of the deck 2. are formed, for their reinforcement in the plastic outer layer 4 'molded reinforcement inserts made of glass fiber strands, metal rails od, the like. can be provided.

According to FIG. 3a, the profiling can also be interchanged to create a smooth edge of the boat,

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so that the groove 8 in the boot body edge 7 and the Kreisförraigo Bead is formed on deck 2.

In Fig. 4, a further Ausführungsbeispiei is shown schematically. Here the upper edge 7 of the hull 1 is provided with a hook-like projection 13, which is gripped from below by the correspondingly profiled outer edge 9 of the deck 2, the hull edge 7 being supported inward by an inner edge 10 resting against it. The projection 13 can also be directed inwards or projections 13 directed to both sides with a corresponding shape of the groove 8 can be provided on the edge 7 of the boat hull 1 according to FIG. The undercut of the projections only needs to be selected to be very small, so that even a slight elastic deflection is sufficient to be able to produce the coupling. If the projections do not protrude too far, the type of connection according to the invention can also be released again by using appropriate tools with elastic resilience.

According to FIG. 6, the edge 7 can also have one or both sides a plurality of projections 13 may be provided, which taper both essentially parallel and wedge-shaped can be arranged so that a plurality of engagement surfaces is generated. If necessary, an additional Gluing or sealing cord can be provided. The edges 9 and 10 of the deck 2 can be more or less deep the edge 7 of the hull 1 can be pulled down.

According to FIG. 7, several parallel running Grooves 8 or correspondingly designed edges 7 of the boat hull 1 can be provided, which are both unilateral as can also overlap with double-sided conical surfaces and with additional one or two-sided projections 13 can be provided in a single or multiple arrangement can.

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- 10 -

- 10 -

If a longitudinal central support rib lh is provided for further stiffening the hull, this can also be connected to the deck 2 in the manner indicated above, either with a simple one, for better stiffening both the deck 2 and the entire hull according to FIG Wedge connection according to FIG. 2 or one with toothing, as this is produced in FIG. 8 or in the preceding figures. Here, the inner layer 6 of the deck 2 is pulled down in the area of the central support rib l4 to form a groove 8 with the formation of two edges 15, so that the correspondingly formed edge 7 of the central longitudinal support rib l4 can be inserted into the groove 8, with both an additional gluing as well as only an elastic latching of the toothing or projections can be provided.

If the hull has a sword box which has two sword card walls 17 which have a slot l6 include between them, the innovation according to the connection method, for the sword case with the Deck to be provided. Here, the edges 7 of the sword box walls 17 have wedge surfaces or undercut protrusions 13 provided, which are each received in a corresponding groove of the deck 2 and wherein the connection in a the types described above can be formed. This sword box connection can then merge into a central support rib to the stern or to the tip of the boat hull, under the appropriate previously described training of the innovation.

According to Fig.11 or Fig.11a, the deck edge overlapping the hull edge can be formed with a tread surface l8, which can be inclined about 45 to the deck plane at an angle to the outside and is mainly provided in the area between the mast and rudder on the deck and for the out -

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Riding or standing in a trapeze a better support surface offers. The tread l8 can according to Figure 11 directly merge into the top surface, it can also merge into a further tread surface l8 'according to FIG. 11a, which forms a smaller angle with the deck surface than is the case with the outer step surface l8. This allows the team to adjust to different heel angles.

The tread surfaces l8, l8 · can also be provided with a Corrugation, grooving or the like. be provided, which the stability elevated. Furthermore, an additional reinforcing laminate 19 can be laminated in in the area of the tread surfaces 18, 18 or be laminated on in order to be able to better absorb the punctiform load on the part of the team, which in particular is then of importance when falls or the like. Shocks must be absorbed.

In Figure 11a is a further simplified connection formation shown schematically. Here the upper edge of the hull 1 * is cut off. Then the inner and / or outer layer 4 or 6 deformed slightly cantilevered outwards, e.g. flanged, which is caused by plastic deformation, e.g. by upsetting, heating or by corresponding prior shaping during manufacture, if necessary with appropriate rework can be reached karni. the The base of the groove 8 in the deck 2 is then correspondingly undercut on one or both sides. When reassembling, the foam intermediate layer 5 elastic by the amount of the projection spring in, after which the edge 4 or 6, or the edges 4, 6 with their projection or their projections into the corresponding Compress undercuts of groove 8. Here, too, hardening adhesive can be used to secure the connection and to seal Plastic and / or a seal are inserted.

• ·

I Il

A further advantageous embodiment is shown in FIG. 12, by means of which an externally smooth transition from the hull 1 and deck 2 is achieved, which is particularly important to avoid splashing water at high speeds or to reduce the flow distance. Here, the outer and inner layers k, 6 of the boat hull are drawn or bent inward in the area of the connection, which can be achieved by appropriate subsequent deformation or by appropriate shaping during manufacture. The groove 8 in the deck 2 is designed accordingly, so that a one-sided undercut is achieved, in which the inner layer 6 of the hull 1 engages. The outer surfaces of the hull 1 and deck can then overlap one another without jerks or without steps and, for example, can be shaped accordingly to form a rounding or a tread surface 18 shown in FIG. Here, too, glue, hardening plastic or a sealing profile can be added to the connection point.

From Fig.lla there is also a further development of the innovation to this effect, as corresponding to the outer step surface l8 also in the area directed towards the center of the boat of the deck, in which there is usually a cutout for the Crew is attached a corresponding performance area, or seating surface l8 "can be arranged, which with a Extension 20 protrude down into the interior of the boat can, so that in this way a comfortable sitting is achieved in every sloping position of the boat and with the protruding downward Extension 20 also serves to form a corresponding stiffening profile of the deck. Here

can be in the area of this deck section or the extension ..... 2O ... or. the. inner. tread surface i8 "still has an additional Reinforcement lamination 19 'in the form of an

Kungsprofiles made of metal, plastic, wood or the like. molded can be, so that when the crew walk on deck 2 in the area of the cutout, there is no deflection or fractures can lead, especially in the case of falls, capsizing or the like. important is.

In Figs. 13, 14, i4a λχυΛ 15 u.ff. further embodiments are shown, which are particularly used when the hull 1 and the deck 2 are made in a two-shell construction in the foaming process. Here, the inner and outer layers 6 and 4 of the hull 1 and the inner and outer layers 6 ¹ and 4 ^{1 of} the deck are pulled together and connected, for example, by applying plastic, with the foam intermediate layer 5 and 5 "in this area, respectively In particular, the 4 layers are conformally bent downwards in an approximately circular shape, forming a rounded edge bead, so that a rounded groove 8 is formed in the deck area, into which the correspondingly conformally designed hull edge 7 engages Furthermore, a shoulder 21 can be formed in the inner region by conformally crimping the inner layers 6, 6 ′ of the hull edge 7 and the deck 2 that lie against one another there.

Furthermore, according to Fig. 15 in the area of e.g. cut hull edge 7, the inner layer of the deck, the hull edge 7 overlapping on all sides and thus forming a groove 8 to the upper layer 4 'of the deck 2 and both layers the outer layer 4 of the hull edge 7 reach over and be pulled down. Here the connection point is sealed and "solidified" by applying hardening plastic.

It is also possible, according to FIG. 36, to use the layers 4 ',

6 ¹ , 4 and 6 to converge under a roof-shaped design, so that a very hard deck surface is created, which serves with its outer sloping roof surface as a tread.

Claims (11)

Protection claims: 1. Deck connection for a boat hull, in particular in a double-shell construction with a foam intermediate layer, thereby characterized in that the connection of the deck (2) with the hull (l) as a wedge-shaped and / or single or multiple undercut, circumferential groove (8 / for ™ Admission of the corresponding wedge in the connection area (3) shaped and / or undercut one or more times is formed upper hull or Deqkrandes. 2. Deck connection according to claim 1, characterized in that that the connection point (3) additionally glued, welded or the like in a manner known per se. is. 3. Deck connection according to claim 1 or 2, characterized in that that in the area of the junction (3) t in particular of the undercut »the foam layer (5i φ 5 ¹ ) is designed to be highly elastic, is widened or the like. has increased elasticity. 4. Deck connection according to one or more of claims 1 to 31 for a sword case or the like. provided Boat hull, characterized in that the deck (2) also in the area of the sword case (16, 17) at least one wedge-shaped and / or one or more undercut connection point (3) with the sword case (l6, 17). 5. Deck connection according to one or more of the preceding Claims, for a boat body provided with a medium-sized supporting rib, characterized in that the central longitudinal support rib (i4) is connected to the deck (2) by at least one wedge-shaped and / or one or more undercut connection point (3). 6. Deck connection according to one or more of the preceding claims, characterized in that the circumferential connection point (3) to form a rubbing strip, ram strip, longitudinal stringer or the like. is thickened. ? ♦ Deck connection according to claim 6, characterized in that a reinforcing rail, reinforcing laminate, reinforcing stringer or the like in the area of the thickening. (12) is molded. 8. Deck connection according to one or more of the preceding claims, characterized in that an elastic sealing cord, sealing bead or the like in the connection area (3). (ll), in particular, is inserted into a molded-in groove. Deck connection according to one or more of the preceding claims, characterized in that the profiling of the hull edge (7) and the groove (8) correspondingly, in particular in the form of a wedge profile, hook profile, fir tree profile, engaging behind one another on one or both sides in a single row or multi-row arrangement is formed. 10. Deck connection according to one or more of the preceding claims, characterized in that the upper edge (7) of the hull (l) in the region of the inner and / or outer layer (4, 6) is flanged, widened, parallel, in particular bent inward or the like. is formed cantilevered, wherein the groove (8) of the deck (2) in the area of the connection point (3) is formed correspondingly conform, in particular to generate a prestress with undersize. 710S8A0i6.i2.7i 11. Deck connection according to one or more of the preceding claims, characterized in that the receiving groove f ρ. ι -it * -, .-. ν-. ~ -. = -. π ~ - i.-j ! -7 "s .- · ϋ = π -..-. + = YA— -; er = '" ¹ ^ "n ** /» * ■ - ■>'"this groove (8) indented profile as a circumferential edge is formed on the deck (2). J2. Ceiling connection according to one or more of the preceding Claims, characterized in that on the top of the üeck (2) in the area of the connection point (3) at least one, preferably several, tread surfaces (18, 18 ') deviating from the surface of the hull (i) and the deck (2) Angle or in one of the included angles one * or multiple dividing angle is formed. 13- deck connection according to claim 12, characterized in that that in the area of the tread (l8) one and / or more laminated reinforcement laminates (19, 19 ') or the like. arranged are. l4. Deck connection according to claim 12 or 13, characterized in that that the tread surfaces (l8, 1.8 ·) grooved, corrugated or the like. are trained. 15 · Deck connection according to one or more of the preceding claims, with a deck center cutout, characterized in that a step surface (i8 ") with a profile extension (20) adjoining it, in particular into the interior of the boat, is arranged in the area of the central cutout, which is preferably with a Reinforcement insert (l8 ^{! L} ), reinforcement profile or the like. Is provided. l6. Deck connection according to one or more of the preceding claims, characterized in that the outer layers (4 ^S , 6 '} of the deck (2) are brought together in the area of the connection point (3) to form a groove (8) and the, in particular their merged, inner and outer layer (4, 6) of the Reach over the hull edge (7) conformally. 17 · Deck connection according to claim l6, characterized in that the brought together layers (4 ¹ , 6 ·) of the deck (2) and the brought together layers (4, 6) of the hull edge (7) conformal groove-shaped, roof-shaped, circular arc-shaped or the like « , in particular are bent outwards to form a shoulder (21). 710S8401 & 12.71