SE513379C2 - Leg adjusting method of U-shaped boat wagon for transporting boat on road surface - Google Patents

Abstract

A leg interconnection unit (4d) is connected between horizontal pair of legs (4a,4a'). The leg pair is provided in a U-shaped boat wagon (2). The interconnection unit is connected to the leg pair in such a way that horizontal distance between the pair of legs are adjusted by lengthening or shortening the distance between the leg pair. An Independent claim is also included for a leg adjustment structure.

Description

513,379 z Swedish patent application 97 01221-5, with publication number 511 923.

IEKHIKEHS_I1DIQBBE_SIÅHDBHHKI.

Various types of sanding carriages displaceable or displaceable along a surface are previously known, adapted for a shorter transport distance of boats.

Such a trolley is shown and described in the Swedish patent publication SE-Cl-501 759, in which publication the prior art is well defined.

Considering the peculiarities associated with the present invention, it can be mentioned that there are previously known boat transport carriages with the frame structure U-shaped and where the horizontal distance of the legs is adjustable in order to adapt the distance of the legs to the width of the boat.

In this case, it is known that to resp. the front portion of the legs forms a sliding sleeve strongly dimensioned for torsional stresses, slidably arranged along a transverse beam, serving as the portion connecting the legs.

This transverse beam is assigned a length adapted for the greatest width between the legs.

It is further known that boat transport carriages have a number of carrying ropes or the like for holding the boat hull in the carriage.

It is known that boat transport carriages have fixed support points for holding the boat hull in the carriage.

The previous state of the art also includes the content of the following patent publications.

SE_B_455 Q25 Here is shown a wagon (2) arranged slidably or movably along a surface, adapted for the transport of boats. A support member (8a) intended for the boat is raised and lowered by a hydraulic piston-cylinder arrangement (13) around a U-shaped frame part (8, 8b), the legs of which are rotatably attached to the frame of the boat trailer. (2).

E2_n2_Q 555 545 A transport trolley with the chassis can be raised and lowered via the attachment of the required wheels.

BQILER8 fi LQQ213_i fl Q_81LQQ§QZl Here too, a transporting trolley with the chassis can be raised and lowered via the attachment of the required leg-related wheels. Here the rear part of the chassis can be raised or lowered.

IEKHISKI_2BQBLEM Considering the fact that the technical considerations that a person skilled in the relevant technical field must make in order to offer a solution to one or more technical problems posed is initially an insight into the measures and / or the sequence of measures to be taken and a selection of the means (s) required and, consequently, the following technical problems should be relevant in the practice of the present invention.

Taking into account the prior art, as described above, it should be considered a technical problem to be able to design a simple construction for a two-axle sanding trolley, of the above-mentioned nature, which can not only transport boats safely, with by means of carrying straps or the like, in a simple manner, essentially regardless of the hull shape of the boat, but can also offer a simple adjustment of the boat's position relative to its horizontal plane, substantially independent of the instantaneous position of the yYYYgn, thereby enabling the effect to more or less maintain the position of the boat relative to the horizontal plane, despite major changes in the position of the carriage, due to its movement up and down the water or movement along a sloping surface, and also be able to create such conditions, when each of two support members can use , about each axis of rotation rotatably oriented, arm, to make a carrying strap or strap able to move up and down in one, or r next to a, perpendicular to the frame oriented, plane, all while the front keel portion of the hull should be able to rest against a support plate.

There is a technical problem in being able to realize the advantages and significance of allowing said support plate to be applied to a part of a connecting portion and only in the horizontal plane to be movably arranged in the longitudinal extent of the portion to be able to laterally displace the hull front part when adjusting the position of the hull with one or both of the carrying straps.

It is also a technical problem to be able to realize the significance of and the advantages associated with allowing the front part of the boat transport trolley to be height-adjustable via piston-cylinder arrangements, operating between the front steerable wheels and the trolley frame structure.

There is also a technical problem in having the side-oriented piston-cylinder arrangements connected in parallel in this application in order to offer equal compressive forces on the two arrangements and to offer a oscillating function, in order to be able to absorb irregularities in the substrate.

LQSHIHQEH In order to be able to solve one or more of the above-mentioned technical problems, the present invention can now be based on a trolley displaceable or displaceable along a surface, of the construction initially stated. 513 579 5 It is hereby instructed that a support plate adapted for the front part of the hull shall be applied to a central or center-oriented sub-portion of a connecting portion and in the horizontal plane be movably arranged in the longitudinal extent of the boat in order to laterally displace the front part of the hull slightly. the position of the hull with one or both of the carrying straps.

It is further instructed to allow the front part of the boat transport trolley to be height-adjustable via side-oriented piston-cylinder arrangements, acting between the front steerable wheels and the frame structure of the trolley.

In this application, it is recommended to have the side-oriented piston-cylinder arrangements connected in parallel, in order to offer equal compressive forces on both, and to offer a oscillating function, in order to be able to absorb irregularities in the ground without appreciable change in the position of the carriage. The advantages that can mainly be considered to be characteristic of a boat transport carriage, in accordance with the present invention, are that in this way conditions have been created to be able to offer an adjustment of the boat hull position in the boat transport carriage in a simple manner, by allowing the front part of the boat hull to rest against a support plate, arranged horizontally oriented and movably arranged along a connecting portion.

What can primarily be considered to be characteristic of a carriage displaceable or displaceable arranged on a surface, in accordance with the present invention, is stated in the characterizing part of the following claim 1. 513 379 6 KQBI_EIGHBBESKBI! HIHQ A presently proposed embodiment of a boat transport carriage, having the peculiarities associated with the present invention, will now be described in more detail with reference to the accompanying drawing, in which; figure 1 shows simplified said boat transport trolley in a perspective side view, with front and rear support members and taking a large bed adapted to a boat hull between the legs, for the U-shaped frame construction, figure 2 shows a further somewhat simplified boat transport trolley, according to figure 1 , in a perspective view, with a small width adapted for a road transport for the boat transport carriage and with a small width between legs, in that a sub-section is removed, figure 3 shows on a slightly enlarged scale a front part of the boat transport carriage according to figure 1 and figure 4 shows a hydraulic wiring diagram when utilizing two piston-cylinder arrangements, each operative between a front wheel and the frame structure itself.

W r I _ Referring to Figure 1, there is shown in side view a sanding trolley or boat transport trolley 2 arranged movably along a base 1, adapted and set for a transport of a boat (3), not shown in the figure, and where the grinding trolley 2 has a frame 4, a number of pairs of wheels cooperating with the frame, where a left-oriented front pair of wheels is assigned the reference designation 5, 5 '(assigned to each front axle) and two 513 379 7 right-oriented wheelsets, assigned the reference numerals 6, 6 '; 7, 7 ', each assigned its rear axle, a first support member 8 intended for the front or intermediate portion of the boat, and a second support member 9, 9' intended for the aft portion of the boat.

An intermediate-oriented support member (which may be intended for the boat's bow) has been assigned the reference numeral 10,10 'and has a construction equivalent to the support member 9,9' - The frame 4 is assigned a U-shape, where resp. the outer portion 4b (4b ') of the leg 4a (4a') cooperates with the said two pairs of wheels 6,7, (6 ', 7').

A connecting portion 4d of the inner portions 4c, 4c 'connecting the legs cooperates with the pair of wheels 5, 5', which are partly load-bearing and partly steerable.

Resp. support means, 9, 9 'or 10,10' consist of two side-oriented, telescopically related and of piston-cylinder devices 13, 13 'resp. 14, 14 ', height-adjustable supports, a strap or carrying strap 9a, l0a extending between them and resp. supporting supports, in the legs of the frame 4a, 4a 'rotatably attached, arms l3a, l3a' resp. l4a, l4a '. __The support member intended for the front and / or intermediate-oriented part of the boat is divided into two parts, where one 10 resp. 10 'consists of a belt or a carrying strap 10a, which is arranged to be raised and lowered by means of a hydraulically actuable, telescopically related, pillar or support, in the form of two piston-cylinder devices 13, 13', while the other 8 consists of a V-shaped support plate.

The support member 9 resp. 9 'consists of a band (a carrying strap) 9a, the end portions of which cooperate firmly with each hydraulically actuable telescopically related pillar or support, in the form of piston-cylinder devices 14, 14', by using known fasteners required for this.

Where, as a supporting service, hydraulically actuable piston-cylinder device 13 resp. 13 ', for the support member 10 resp. 10 ', is attached to an outer portion of an arm 13a resp. 13a ', which is rotatably attached to the legs 4a, 4a' of the frame 4, where this rotatable attachment takes place at the front part of the leg 4a and is intended to offer a horizontally directed movement for the arm 13a and 3a, respectively. l3a 'towards and out from the center line "C" of the frame 4. Required support lugs next to the leg 4a, 4a 'are not shown.

The setting can here automatically connect to the width of the hull, if the arms 10 resp. 10 'were allowed to move freely in the horizontal plane.

However, one or both arms of one or both support members may be locked in a selected setting position or adjustable by hydraulic aids not shown in the figure.

To center a boat in the carriage 2, as in a pick-up from the water, the front and / or the rear arm of the front 10, 10 'and rear 9, 9' support members are locked on one side to the width dimension applicable to the boat in question. , alternatively, one or both arms can be hydraulically adjusted to be displaced from or towards each other for a centering of the boat hull in the carriage.

This means a safe and controlled handling of the boat.

Where, as a supporting service, hydraulically actuable piston-cylinder device 14 resp. 14 'for the support member 9 resp. Intended for the aft part of the boat. 9 'is attached to an outer portion of an arm 14a resp. 14a ', which is rotatably attached to the leg 4a resp. 4a 'center-related party. 513 379 9 A machine 100, not shown in Figure 1, in the form of a pressure oil supply system, shall e.g. be able to drive said telescopically cooperating devices 13, 13 'and 14, 14' up and down.

The embodiment is now based on the sanding trolley 2 having at least three support members, a support plate 8 adapted for the most front part of the boat, a support member 9, 9 ', 9a adapted for the aft part of the boat and a support member 10, 10' adapted for the center-oriented portion of the boat , 10a and with two support means assigned height-adjustable via separate hydraulically actuated piston-cylinder device. The support plate 8 can not be raised and lowered via a piston-cylinder arrangement.

One of said, shown in the exemplary embodiment shown as the front support member 8, is adapted as a support plate 82. Said plate 82 is here adapted so that the support member can cooperate with the front keel portion of the boat and that other support members 10, 9 comprise i.a. . a strap, a rope, a carrying strap or the like and cooperates with the boat's 3 center-oriented part and the boat's aft part.

The support member 8 serving as a support plate 82 is shown here to constitute the most compatible support member but could thus be an intermediate-oriented support member and said support plate 82 has an upwardly directed weak V-shape or the like for centering the keel portion of the boat.

The support member 8 is here located next to and in front of the front load-bearing axles.

The carriage 2 is shown here consisting of three, interoperable parts, a front part and the two legs (4a, 4a '). At the section lines 20, 21 the parts are fastened to each other with a bolted joint. As separate parts, the transport of the parts becomes easier than assembled_and surface treatment etc. facilitated. 513 379 10 If the support plate 82 is placed in the middle, it is possible to take over force loads from the side-related lifting devices.

The axles of the wheel pairs 5, 5 'are rotatably attached for a rotation about the center line "C" and can be locked in one position by means of piston-cylinder arrangement.

Referring to Figure 3, it is shown there that the legs 4a, 4a = connecting portion 4d may consist of at least one easily removable center-oriented sub-portion 31.

The detached surface sections 31a, 31b of the sub-portion 31 are provided with first coupling means 32, 33, adapted for a co-operation with corresponding second coupling means 34, 37 belonging to adjacent sub-portions 36, 37 of the said connecting portion 4d.

The said second corresponding coupling means 34, 35 should advantageously also be adapted to form corresponding coupling means among themselves, for a direct interaction with each other, according to figure 2 without sub-section 31.

The sub-portion 31 as well as the sub-portions 36, 37 here constitute a beam structure, such as a beam structure with a rectangular cross-section, preferably a square cross-section.

Said first and second coupling means are shown in the embodiment consisting of perforated flanges, through which holes a number of screw connections or bolt connections are arranged.

Furthermore, it can be seen from Figure 3 that the connecting portion 4d advantageously consists of two parallel and oriented beam parts, such as 31 and 31 ', where the latter in the same way as the former is provided with similar coupling means, the reference numerals of which are supplemented by a prime sign (32 ', 33', 34 ', 35'). fi! This embodiment is further based on the fact that each leg part 4a, 4a 'must be so constructed that its center of gravity is stably supported by e.g. wheel sets, mainly the rear wheel bogie arrangements with wheels placed on each side of the leg part and on each side a center of gravity for the leg part 4a.

There is nothing to prevent said connecting portion 4d, with the parts 31, 36, 37, from being telescopically arranged with other coupling means than those shown in the figures. Even rods arranged parallel to said connecting portions 31, 31 'can be telescopically related.

It follows that when the sub-portions 31, 31 'have been removed from the boat transport carriage 2, according to figure 1, the legs 4a, 4a' of said steerable wheel pairs 5, 5 ', angled towards each other and the machinery 100, can be brought closer to each other to the position shown in figure 2 and then the sub-portions 36 and 37 are fixed to each other via the coupling means 34 and 35.

When removing the sub-part 31 ', the U-shaped support plate 82 is also included.

It also follows that when the sub-portions 31, 31 'are to be mounted to the boat transport carriage 2, as in Figure 1, the legs 4a, 4a' of said steerable wheel pairs 5, 5 ', are angled away from each other, and the machinery 100 is brought apart to the position shown in Figure 1 and there are locked to each other by means of an insertion of the sub-portions 31 (31 ') and a locking of these to the sub-portions 36, 37 (36', 37 ') via the coupling means.

The invention also indicates as a complement (especially in the case where the legs 4a, 4a 'are not balanced) that the part 31 is removed and that a beam 101 serving as a support is inserted in the opening 37a of the beam part 37, in the direction of the arrow P, so far that it also cooperates with the beam part 36. 513 379 12 Thereafter, the part 31 'is removed with the support plate 82. A further beam 101a can now be inserted into the opening 31a and displaced through the beam parts.

With these beams 101 and 11a in the inserted position, the legs can be brought to a position suitable for road transport and joined together and fastened to each other according to Figure 2, where the beams 101 and 11a are shown removed.

Bringing the legs 4a, 4a 'to a wide position adapted for boat transport must take place in the opposite sequence, ie. insert both beams 101 and l0la, loosen the bolt joints, displace the legs 4a, 4a 'from each other, remove one beam 101 and mount the intermediate part 31, remove other beams l0la and mount the intermediate part 31'.

The support plate 82 is movably arranged via a sliding surface 81 parallel to a center line assigned to the connecting portion and can thus slightly laterally displace the front support point of the boat hull depending on the boat hull setting position in the holes 9, 9 'and 10, 10'.

Referring to Figure 4, there is shown a hydraulic coupling diagram, for the two front piston-cylinder arrangements 5a, Sa 'which, each cooperating between the frame part 4c, 4c' and the wheel pairs 5, 5 'and these arrangements are hydraulically connected in parallel , which means that they can both be raised and lowered by the hydraulic pressure from a valve 40, connected to a pressure source 41.

In the case of a closed valve 40, the piston-cylinder arrangement 5a, Sa 'offers a pendulum movement, for an adaptation to an uneven surface under the same pressure. By pendulum movement is meant that hydraulic oil is pressed from one cylinder over to the other and vice versa as the pair of wheels 5, 5 'roll over the unevenness. The invention is of course not limited to the above-mentioned exemplary embodiment, but may undergo modifications within the scope of the inventive concept illustrated in the following claims.

Claims (3)

513 379 14 BBIEHIKBBY A carriage (2) slidably or movably arranged along a base (1), adapted for transporting a boat (3), having a frame (4), a number of wheels cooperating with the frame (5,6,7), assigned front steerable and load-bearing axles and rear load-bearing axles, a support member (8) intended for the front of the boat, a support member (9, 10) intended for the stern of the boat and a portion located for the midships of the boat, the frame being assigned, in a horizontal plane , a U-shape, where resp. the outer portion (4b) of the leg cooperates with said wheels, belonging to the rear load-bearing axles, while a connecting portion (4d) of the inner portions of the legs cooperates with said wheels, belonging to the front steerable axles, characterized in that said for boat of the hull for the intended support member has the shape of a support plate (8), that this support plate is movably arranged in a direction adjoining a, the connecting part (3l ') assigned, center line, ie. sideways. A carriage according to claim 1, characterized in that each of the front wheels (5,5 ') is supported by a piston-cylinder arrangement (5a), operative between said wheels and the frame structure of the carriage, that said two piston-cylinder arrangements are hydraulically connected in parallel. 3. A trolley according to claim 2, characterized in that via a valve the volume of these piston-cylinder arrangements is enclosed and thus offers a oscillating movement.