Universal cyclecar and exchangeable superstructure on such cvclecar

Technical Field

The invention relates to the universal cyclecar, making posible to install on it different utility superstructures, and to the exchangeable superstructure being able to be mounted on such cyclecar or similar platform car. Background Art

The known solutions of cyclecars as trailers behind passenger cars or behind delivery vans are characterized by that that the cyclecar makes posible the transport of loose positioned or by means of usual fastening means fastened load. The transport of some loads requiring a special superstructure, making possible the reliable fastening of the load, as boats, motorcycles, cisterns etc. may be, or the superstructure of the cyclecar in the form of a caravan, are solved as single-purpose connected vehicles.The solution, making posible to use one cyclecar e.g. as an usual load trailer that in case of need can be used for the reliable fastening of a special load superstructure or of a caravan, is not known. That is - besides considerable financial costs - disadvantageous also for that reason, that such a single-purpose trailer has a prevalent seasonal use, and during the major part of a year, it is not utilized, this increasing the demands for storing and parking place for its holder.

It is known a solution of a collapsible tent superstructure, destinated for installing on the cyclecar, according to the Invention CS AO 214 372, but this solution has not found the practical application. One of main disadvantages of such solution is that that the tent superstructure is located on the sides of the trailer, which is not permissible, because trailers are not adapted from the point of view of the desϊπg, for bearing compression and torsion load. The following disad vantage consists in that, that with regard to the location of the tent superstructure above the level of the trailer sides, the whole complex has its centre of gravity very high, what considerably deteriorates the riding characteristics Gf the trailer and makes difficult the loading and unloading of the caravan superstructure. At the same time, the caravan superstructure is provided with no technical means that would facilitate the loading and unloading of the tent superstructure from the trailer. The disadvantage of this solving consists also in that, that the entrance into the caravan superstructure is very high above the ground. From the point of view of the user comfort, the disadvantage of this solving is also in that that the caracaπ superstructure has no veπtϊfaϋσπ solved, because it has no øpenab'e window Installed, what makes difficult or impossible the stay of persons in ϋ in the summer time, whan us use comes into consrderatfon.

!t is known also a solution making possible to build a tent trailer from an independent modulus, the basis of whϊs is made by the cyciecar. But this solution is also a single-purpose one, therefore it is not possible to use it for other purposes as for the living ones. Besides, it has the

disadvantage, that it is provided with no openable windows, which does not make possible the sufficient ventilation of the tent space, making it heavily habitable in the hot weather. The disadvantage is also the small height of the caracan superstructure which does not make possible to the user to move in the tent superstrukture upright. Disclosure of Invention

The said disadvantages are in the considerable extend eliminated by the cyclecar and by the exchangeable superstructure for such cyclecar according to this Invention, the disclosure of which consists in that, that the cyclecar is provided with bottom clamping means for fastening of an exchangeable superstructure, the bottom clamping means being advantageosly provided with conical hollowings and/or projections and located in the corners and/or on the periphery of the loading area of the cycfecar. At the same time, the disclosure of the Invention consists in that, that the exchangeable superstructure is provided with upper clamping means, mirroriike arranged against the bottom clamping means, made on the cyclecar, the upper clamping means are advantageously provided with conical projections and/or hollowings and they are located on the floor of the exchangeable superstructure.

The advantage of the Invention is, that the advantages of a load trailer are used, such as the mobility, a great number of users, the easy storage possibility, the reasonable price and, after providing the cyclecar with a corresponding exchangeable superstructure, the possibility to use such superstructure for special purposes, e.g. as a caravan, lifting platform, cistern, boat trailer, etc. After dismantling of the exchangeable superstructure, the original utility properties of the cycfecar do not change in a negative mode, and therefore this cyclecar is manifold more useable as the cyclecars used until now. Such exchangeable superstructures are, compared with a single-purpose special cyclecar, much cheaper, they ensure a substantialy better use of the basic cyclecar, can be easy stored in a small space, and - in addition to it - conditions are done - by means of an unification of clamping means of the exchangeable superstructure and of the cyclecar - for hiring out such exchangeable superstructures in a network of hiring offices. Conical damping means, made with the due clearance, ensure the realiable and handy placing of the exchangeable superstructure on the cyclecar, because the exchangeable superstructure fits accurately and perfectly on its place on the cyclecar.

The disclosure of the Invention consists further in that, that in bottom clamping means, a through hole, and in upper clamping means, a tapered hole are formed, this making possible to attach the exchangeable superstructure to the cyclecar by means of a connection element.

The disclosure of the Invention consists also in that, that between the bottom clamping means of the cyclecar and the upper clamping means of the exchangeable superstructure, on the connecting element, passing through the through hole of the bottom clamping means and anchored in the tapered hole of the upper clamping means, a spacer is inserted. This makes

possible to place and fasten safely the exchangeable superstructure on the cyclecar in case, that the cyclecar has no tiltable or removable side walls, or when mud wings protrude over the loading platform of the cyclecar, or when other reasons exist.

In order to make possible to stabilize the cyclecar in the horizontal position after its uncoupling from the hauling vehicle, the disclosure of the Invention consists in that, that it is provided with feet, placed on its front and rear part, which are advantageously made as sliding out/up feets. ^{' '} . ' ^{• •} . '

The disclosure of the Invention consists further in that, that the cyclecar is provided, on its rear part, with a sliding out/up bumper, which extends the efficient length of a loading area, this being advantageous in transporting of long loads and for certain types of exchangeable superstructures, e.g. when boat engine or propeller protrude from the exchangeable superstructure, designed for transporting boats, at the rear part.

The disclosure of the Invention consists further in that, that the cyclecar is provided with at least one service chest, which is advantagously fastened on the cyclecar tow bar. Its advantage consists in that, that it makes possible to store e.g. the needed tools, that does not take a place on the loading area, this chest can be lockable. Besides, some types of exchangeable superstructures need for their operation a power source, e.g. a lifting platform needs the hydraulics, or people need water, e.g. in the kitchen of a caravan superstructure, and a battery, petrol generator, water tank, pressure gas bottle etc., can be situated in the service chest.

In order to make possible an easy, fast and safe loading and unloading of the exchangeable superstructure on the cyclecar, and also for its long-term storage by one person only, the disclosure of the Invention consists in that, that the floor of an exchangeable superstructure is provided on its rear front part and/or rear side parts with at least one rear holder of a rear support, and on its front part and/or front side parts, the floor is provided with at least one front holder of a front support. The front support is mounted on its front holder pivotably and has advantageously the form of a letter ,,A ^U , and the rear support is mounted on its holder unpivotably and has advantageously the form of a letter ,,l"l n order to facilitate the superstructure unloading from the cyclecar and the stabilization of the supports after the unloading of the superstructure from the cyclecar and its positioning on the supports.

The disclosure of the Invention consists further in that, that two opposite sides of the floor of the exchangeable superstructure are provided with bearing walls, on the lower bearing wall a narrower tiltable part, and on the higher bearing wall, a broader tiltable part being tippingly situated. On brackets, fastened in the corners between the floor and the bearing walls, at least one skeleton element is pivotable situated. The advantage of this design is in that, that after assembling of the superstructure, i.e. after the successive tilting first the narrower and then the

broader tilting part into the space above the superstructure floor, arises an in substance closed body in the form of a rectangular with minimum dimensions.

In order not to be necessary to put together laboriously the frame of such caravan superstructure, the disclosure of the Invention consists in that, that the skeleton elements are interconnected mutually and with the adjacent tilable part by means of connecting elements, positioned in pivotable pins, and the tiltable parts are interconnected with the bearing walls by means of struts. Such tiltable mechanism forms, in substance alone, with minimum action of the human force, the bearing skeleton of the caravan superstructure. Through the covering the skeleton with the suitable material, the space arises, that - after the appropriate arrangement - can be used as a caravan superstructure.

In order to secure conditions for an efficient ventilation of the in such way arisen space, the disclosure of the Invention consists in that, that the tiltable parts are, on their free ends, provided with front walls, provided advantegously with openable windows.

At last, the disclosure of the Invention consists in that, that the tiltable parts are provided with supports, that are slipable and/or are connected with tiltable parts by means of pneumatic struts, positioned on pivotable pins, the sliping out mechanism of the supports is formed by the rack mechanism operated by means of a lever. This solution makes possible the soft lifting of the tiltable part after its tilting, when the support slides out and its enlarged part touches the ground in such a way, that by means of a lever rotation, the rack shifting mechanism displaces by some teeth. In this way, the supportwill be prevented, after some time, to sink into the ground, and in this way, the support would loosen the support of the tiltable part, which could cause the excessive stressing of the covering canvas or the excessive stress of the tilting mechanism and of the skeleton structure of the canvas. Brief Description of Drawings

The invention will be close explained by means of drawings, from which FIG.1 demonstrates schematically the perspective rear view on the cyclecar, FIG.2 demonstrates the longitudinal section of the positioning of the upper clamping means of the exchangeable superstructure in the bottom clamping means of the cyclecar, FIG.3 demonstrates the longitudinal section of the positioning in the upper clamping means of the exchangeable superstructure in the bottom clamping means of the cyclecar by means of a spacer, FIG.4 demonstrates the view of the cyclecar from bellow, FIG.5 demonstrates the front view on the folded-up caravan superstructure, FIG. 6 demonstrates the front view on the unfolded caravan superstructure, FIG.7 demonstrates schematically the perspective view on the unfolded caravan superstrucure with the unfolded skeleton structure, FIG.8 demonstrates the front view on the part of the unfolded caravan superstructure with the auxiliary view on the support of the tiltable part , FIG. 9a - FIG.9e demonstrate schematically the lateral view on separate phases of the

unloading the exchangeable superstructure from the cyclecar and its positioning on the supports, and FIG.10 demonstrates schematically the rear view on the exchangeable superstructure after its unloading from the cyclecar and after its positioning on the supports. Example of Carrying Out the Invention

As shown on the FIG.1, the cyclecar has bottom clamping means 3, fastened near the corners of the loading area 1, in which conical hollowings 31 are made, into which conical projections 41 of the upper clamping means 4 of the exchangeable superstructure fit, as shown in the FlG.2. In the bottom clamping means 3, a through hole 32 is made, through which passes a connecting element 28, anchored in the tapered hole 42, made in the upper clamping means 4. In case that the cyclecar has no tiltable or withdrawable side walls, the spacer 34 is positioned between the bottom clamping means 3 of the cyclecar and the upper clamping means 4 of the exchangeable superstructure on the connecting element 28, passing through the through hole 32 of the bottom clamping means 3 and anchored in the tapered hole 42 of the upper clamping means 4, as shown in FIG.3. On the supporting frame 29 of the cyclecar, the sliping out feet 9 are fastened, as shown in FlG. 4 and in other view shown in the FIG.1, the purpose of which is the stabilization of the cyclecar in the horizontal position after its disconnecting from the hauling vehicle. On the tow bar H, the service tool chest 7 is fastened. On the rear part of the supporting frame 29 of the cyclecar, two guiding elements 30 with a square section are fastened, in which two sliding elements 33, rigidly connected with a bumper 5 are positioned, this making possible to slip out the bumper 5 in the longitudinal direction of the cyclecar. On the guiding elements 30, bolts 35 are arranged, making possible to secure the bumper 5 in the chosen position. One of the sliding elements 33 is through, and the cable 36 for the electric energy supply for the lights, arranged on the bumper 5, passes through it.

The floor 2 of the exchangeable superstructure is provided on its rear side parts with rear holders 6 for the unpivotable positioning of rear supports 16I ₁ and on its front side parts, the floor 2 is provided with front holders 8 for the pivotable positioning of front supports J8, as shown in the FIG. 9a. According to the FIG. 9b, the cyclecar with the loaded exchangeable superstructure will be inclined in such a way, that its tow bar H touche the ground, and the rear supports 16 will be put on its rear holders 6. Then the tow bar H will be lifted according to the FIG. 9c in such a way, that it were possible to put the front supports 18 on the front holders 8. The cyclecar will be put into the usual horizontal position, as shown in the FIG.9d, and in this way, the exchangeable superstructure will be separated from the cyclecar, so that it will be possible to drive it away, as shown in the FIG. 9e. The loading of the exchangeable superstructure will be realized in the other way round. The front suppors 18 have the form of a letter,,A", in order to secure the stabilization of the separately standing exchangeable superstructure in the longitudinal direction. The rear supports 16 have the form of a letterj". By the front view, both supports 16 and 18 have

the form of a letter _n Z", as shown in the FIG 10. The upper shoulder of the supports ,,Z" 16, 18 will be put into the holders 6, 8. The rear holder 6 has its inserting part rectangular, and also the part of the rear support 16, connecting with the inserting part of the rear holder (S ₁ is rectangular, therefore they are mutualy not tumable in order that, when putting from the posiition according to the FIG. 9b into the position according to the FIG. 9c, they hold tight and do not twist during the temporaly torsion stress, till the front supports 18 will not be fastened to the exchangeable superstructure, too. In the contrary, the front supports 18 of the usual form ,,A" can turn in the ^■ front holder 8, in order that both shoulders of the front support 18 stay firmly on the ground also in the case, that the ground under the front supoports 18 is not level-headed. In the transverse direction, the section ,,Z" according to the FIG.10 secures the stability of the supports in the form both of ,,A" and /' letter.

Two opposite sides of the floor 2 of the exchangeable superstructure are provided with bearing walls 12, .14, on the lower bearing wall Xλ being the narrower tillable part 13 tipabiy positioned, and on the higher bearing wall 14, the broader tiltable part t5 being tipable positioned, in order that both the tiltable parts 13, 15 can efficiently been tilted up, as shown in the FIG. 5. On the brackets 10 that are fastened in the corners between the floor 2 and the bearing walls 12, 14, four skeleton elements 17 are turnably positioned, as shown in the FIG. 7. The skeleton elements .17 are interconnected mutually and with the adjacent tiltable parts 13, 15 they are interconnected by means of connecting elements 19, positioned in pivots 20, and the tiltable parts t3, 15 are interconnected with the bearing walls .12, .14 by means of struts 23. The tiltable parts 13, 15 are on their free ends provided with front walls 21, in which openable windows 22 are made. The tiltable parts 13, 15 are provided with supports 24 that are slipable out and are connected with tiltable parts 13, 15 by means of pneumatic struts 26, positioned on swinging pins 25. The supports 24 are provided with, rack shifting mechanism that is operated by means of a lever 27, as shown in the FIG. 8. On each tiltable part 13, 15, the slipable out handle 37 is mounted. When it is necessary to tip up the tiltable parts 13, 15_, the handle 37 will be shifted out and by the bow-like motion of the hand, the tiltable parts 13, 15 will be tipped out.