HRP921414A2

HRP921414A2 - Surface gauge construction

Info

Publication number: HRP921414A2
Application number: HR921414A
Authority: HR
Inventors: Gert Beigl; Karl Albert Kohler; Hans-Michael Winkler; Helmut Stempkowsky; Karl-Heinz Rudisser
Original assignee: Getzner Chemie Gmbh & Co
Priority date: 1991-12-11
Filing date: 1992-12-10
Publication date: 1994-12-31
Also published as: ATA245691A; SK279614B6; SI9200382A; EP0546380B1; CZ363092A3; ATE127873T1; HUT63661A; HRP921414B1; HU210631B; CZ282646B6; HU9203927D0; EP0546380A1; DE59203679D1; SK363092A3; AT397973B

Abstract

The railway track structure has rails (6) arranged in pairs and, arranged transversely to the rails and connected thereto, sleepers (5) which bear with their end sections on a foundation plate (2) via elastic intermediate layers (7). Provided between the sleepers (5) are intermediate bodies (13) which are connected to the foundation plate (2). The intermediate bodies (13) which are made of concrete are designed as factory-finished elements. The cross-sectional contour of the intermediate bodies (13) is trapezoidal. The cheeks adjacent to the end sections of the sleepers (5) converge downwardly. The length of the intermediate bodies (13) is the same as or slightly smaller than the length of the sections of the sleeper (5) which project outwards seen from the rails (6). These intermediate bodies (13) are screwed together with the foundation plate. Elastic wedges (22) lie between the adjacent cheeks of the end sections of the sleepers (5) and the intermediate bodies (13). The intermediate bodies (13) are passed through by a vertical continuous bore, which lies in the central region, for receiving a fastening screw (9) which can be anchored in the foundation plate (2). The direct surrounding region of the vertical bore passing through the intermediate body (13) is sunk in relation to the surface of the intermediate body (13). <IMAGE>

Description

Izum se odnosi na gornji stroj kolosijeka s obilježjima naznačenim u patentnom zahtjevu 1. The invention relates to the upper track machine with the features indicated in patent claim 1.

Gornji stroj kolosijeka poznat je primjerice iz austrijskog patentnog dokumenta 382 178 (=EU - OS 456 147). Rubni dijelovi pragova nalaze se u šupljinama betonskog tijela u obliku slova U, koje može biti oblikovano mosnim nosačem. U spomenutim šupljinama betonskog tijela predviđeni su elastični umeci koji ublažuju zvuk, na kojima leže rubni dijelovi pragova. Ta konstrukcija pokazala se doduše dobrom, no njena loša strana je u tome, da je za proizvodnju betonskog tijela potrebno mnogo oplate. The upper track machine is known, for example, from the Austrian patent document 382 178 (=EU - OS 456 147). The edge parts of the sleepers are located in the cavities of the U-shaped concrete body, which can be shaped with a bridge girder. In the aforementioned cavities of the concrete body, elastic sound-absorbing inserts are provided, on which the edge parts of the thresholds lie. That construction turned out to be good, but its downside is that a lot of formwork is needed to produce the concrete body.

Iz njemačkog patenta 38 09 466 poznat je gornji stroj za šinjska vozila. Taj gornji stroj sastoji se iz nosive ploče položene na dozemnu ploču ili iz položenih nosivih ploča, uglavnom iz ploče bez fuga proizvedene od betona ili bituminozne mješavine, koja može imati gornji sloj za izjednačenje iz asfaltnog betona. S voznom trakom oblikovanom nosivom pločom ili nosivim pločama, se rešetka kolosijeka koja se sastoji iz kolosijeka vijcima spojenog s pragovima, zalijepi zalijevnom masom na bazi bitumena i/ili plastične mase. Da bi se takav gornji stroj mogao koristiti ne samo na nasipu, nego i na mostovima, u tunelima i kod skretnica, između pragova u pregrade se puni asfaltna masa ili lijevani asfalt u jednom ili više radnih postupaka, do visine koja odgovara polovini do pune visine pragova. Kod asfaltne mase odn. lijevanog asfalta - ovdje se radi o veoma skupom materijalu koji se treba štedjeti - nadalje je predviđeno, da se u pretince pragova umeću gotovi betonski dijelovi kao grede, koji su dugački kao pragovi. Pukotina odn. otvor između strana pragova i spomenutih gredastih gotovih betonskih dijelova ispune se zalijevnom masom koja se također sastoji iz asfaltne mase ili lijevanog asfalta. Gornji stroj kolosijeka takove konstrukcije u praksi se može koristiti samo u ograničenom opsegu. Budući su pragovi samo lijepljeni, ovdje se moraju još predvidjeti uzdužne traverze koje su izvan tračnica spojene s pragovima, za ukrućenje šinjskog tijela. Asfaltna masa odn. lijevani asfalt je relativno krut i nema elastična svojstva. Kod niskih vanjskih temperatura asfaltna masa odn. lijevani asfalt postaje veoma tvrd i grub. Pod pogonskim teretima pragovi se spuštaju do 3 mm i više. Kako asfaltna masa odn. lijevani asfalt nije elastičan, spojna fuga ne može slijediti tom gibanju, te stoga puca i stvara se pukotina u koju može doći voda, koja se kod niskih temperatura smrzne, što dovodi do daljnjih šteta. The upper machine for rail vehicles is known from German patent 38 09 466. This upper machine consists of a load-bearing slab laid on a ground slab or of laid load-bearing slabs, generally of a jointless slab made of concrete or bituminous mixture, which may have a top leveling layer of asphalt concrete. With the carriageway formed by a load-bearing plate or load-bearing plates, the track grid, which consists of a track bolted to the sleepers, is glued with a bitumen and/or plastic-based grout. In order for such an upper machine to be used not only on the embankment, but also on bridges, in tunnels and at switchbacks, asphalt mass or cast asphalt is filled between the sleepers in the partitions in one or more working procedures, to a height that corresponds to half to full height thresholds. In the case of asphalt mass or cast asphalt - this is a very expensive material that needs to be saved - it is further provided that ready-made concrete parts as beams, which are as long as the thresholds, are inserted into the threshold compartments. Crack or the opening between the sides of the thresholds and the aforementioned beamed ready-made concrete parts is filled with filling material, which also consists of asphalt material or cast asphalt. The track top machine of such construction can be used in practice only to a limited extent. Since the sleepers are only glued, longitudinal traverses must be provided here, which are connected to the sleepers outside the rails, to stiffen the rail body. Asphalt mass or cast asphalt is relatively rigid and has no elastic properties. At low outside temperatures, the asphalt mass or cast asphalt becomes very hard and rough. Under driving loads, the thresholds drop up to 3 mm and more. As asphalt mass or cast asphalt is not elastic, the joint joint cannot follow this movement, and therefore it cracks and creates a crack into which water can enter, which freezes at low temperatures, which leads to further damage.

Iz DE-OS 28 28 713 poznato je postavljanje tračnica kod kojih stranični dijelovi pragova leže u otvorenim koritima u obliku kutije, pri čemu su uspravne granične površine kako korita tako i straničnih dijelova pragova nagnuto postavljene i jedna s drugom su paralelne, a između tih kosih graničnih površina koje se protežu paralelno jedna s drugom, nalaze se gumeni odbojnici. Ovdje se radi doduše o izvanredno djelotvornom rješenju u pogledu izolacije zvuka, no to rješenje je veoma skupo. From DE-OS 28 28 713 it is known the installation of rails where the side parts of the sleepers lie in open troughs in the form of a box, where the vertical boundary surfaces of both the troughs and the side parts of the sleepers are placed at an angle and are parallel to each other, and between these slopes border surfaces that extend parallel to each other, there are rubber buffers. Admittedly, this is an extremely effective solution in terms of sound insulation, but this solution is very expensive.

Na kraju se ovdje prije svega treba spomenuti DE-OS 38 10 700, iz kojeg patenta je poznat gornji stroj za šinjska vozila. Taj gornji stroj ima temeljnu ploču, na koju se stavlja rešetka kolosijeka koja se sastoji od pragova i tračnica. Na kraju se u pretince pragova umeću gotovi betonski dijelovi koji, odozgo gledano imaju oblik slova T i čija duljina osovine je veća od duljine pragova. Ti gotovi betonski dijelovi koji gledano odozgo imaju oblik slova T priliježu sa svojim krajevima tijesno uz prednje strane susjednih pragova, prekrivaju sa svojim poprečnim krakovima prema njihovoj duljini u potpunosti ili barem djelomično susjedno položene pretince pragova. Između pragova i umetnutih betonskih dijelova napravljene su reske, koje se na kraju zaliju veznom masom, pri čemu se ta vezna masa treba nanijeti i ispod pragova. Ta vezna masa može se prema podacima u ovoj objavi zaliti odozgo, no i odozdo pomoću lance. Nakon nanošenja vezne mase odstrane se vretena koja su služila opremi i za podizanje rešetke kolosijeka iznad temeljne ploče. Gotovi betonski dijelovi tog oblika i veličine imaju veliku težinu, tako da se za njihovo postavljanje moraju koristiti dizalice, pri čemu se treba razmisliti, da se ti gotovi betonski dijelovi kod te konstrukcije mogu umetnuti u rešetku kolosijeka samo sa strane, a to je samo tada moguće, ako se nosivi elementi dizalice kod umetanja najmanje jednom okrenu na drugu stranu, jer nosivo uže odn. nosivi elementi dizalice ne mogu doći ispod tračnice položene rešetke kolosijeka. Tako skupo polaganje šinjskog puta u praksi nije preporučljivo. Osim toga je zalijevanje fuga odn. reski s veznom masom također izvanredno skup radni postupak, jer se mora osigurati, da su sve fuge stvarno zalivene s tom veznom masom. Finally, DE-OS 38 10 700 should be mentioned here, from which patent the above machine for rail vehicles is known. This upper machine has a base plate, on which a track grid consisting of sleepers and rails is placed. At the end, ready-made concrete parts are inserted into the sill compartments, which, seen from above, have the shape of the letter T and whose shaft length is greater than the length of the sills. These ready-made concrete parts, which have the shape of the letter T when viewed from above, fit with their ends closely to the front sides of the adjacent sills, cover with their transverse arms according to their length completely or at least partially the adjacent sill compartments. Between the thresholds and the inserted concrete parts, slits are made, which are filled with bonding compound at the end, and this bonding compound should also be applied under the thresholds. According to the information in this publication, this binding mass can be poured from above, but also from below using a chain. After applying the bonding compound, the spindles that served as equipment and for lifting the track grid above the base plate are removed. Ready-made concrete parts of that shape and size have a lot of weight, so cranes must be used for their placement, and it should be considered that these ready-made concrete parts can be inserted into the track grid only from the side with this construction, and that is only then possible, if the load-bearing elements of the crane are turned to the other side at least once during insertion, because the load-bearing rope or load-bearing elements of the crane cannot reach under the rail of the laid track grid. Such an expensive laying of rail track is not recommended in practice. In addition, the grouting of joints or reaming with bonding mass is also an extremely expensive work procedure, because it must be ensured that all the joints are actually filled with this bonding mass.

Polazeći od ovog stanja tehnike, izum si uzima za zadatak, da zaobiđe navedene loše strane i poteškoće kod konstrukcije, te da prema stanju tehnike dalje razvije šinjsko tijelo naprijed navedene vrste tako, da se može proizvesti uz manje troškove, bez da se njegovom konstrukcijom loše utječe na prednosti koje su već postignute, što prema izumu uspijeva u onim mjerama, koje čine sadržaj i predmet naznačenog dijela patentnog zahtjeva 1. Starting from this state of the art, the invention takes on the task of circumventing the aforementioned disadvantages and difficulties in construction, and to further develop a rail body of the aforementioned type in accordance with the state of the art, so that it can be produced at lower costs, without its construction being adversely affected affects the advantages that have already been achieved, which according to the invention succeeds in those measures, which make up the content and subject of the indicated part of patent claim 1.

Da bi se izum zorno prikazao, pobliže ga objašnjavamo pomoću primjera izvedbe na priloženim crtežima. Oni prikazuju: In order to present the invention clearly, we explain it in more detail using examples of implementation in the attached drawings. They show:

Slike 1 do 3 presjek kroz jednu trasu, pri čemu su prikazani različiti stadiji konstrukcije; Figures 1 to 3 a section through one route, showing different stages of construction;

slike 4, 5 i 6 prikazuju u tvornici proizvedeno međutijelo u nacrtu, u pogledu (strelica A na slici 4) i pogledu odozdo; figures 4, 5 and 6 show the factory-produced intermediate body in plan view (arrow A in figure 4) and bottom view;

slika 7 pokazuje gotovo šinjsko tijelo u nacrtu, a slika 8 u pogledu (strelica B na slici 7). Fig. 7 shows almost a rail body in plan, and Fig. 8 in view (arrow B in Fig. 7).

Uzduž predviđene šinjske trase, na licu mjesta se u zemlji 1, lijevaju betonski temelji. Na taj betonski temelj 2 se iznad podloge od morta 3 stavlja betonska ploča 4, koja se proteže uzduž trase odn. betonskog temelja 2 i čija širina je manja od širine betonskog temelja 2. Te betonske ploče 4, koje se postavljaju uzduž trase jedna za drugom, proizvode se u tvornici. Na tako pripremljen temelj stavlja se i uravnava rešetka kolosijeka, koja se sastoji od betonskih pragova 5 i na njima pričvršćenih tračnica 6. Na donjim stranama pragova 5, koje strše s obje strane relativno uskih betonskih ploča 4, učvršćeni su elastični umeci. Oni se mogu nalijepiti ili provizorno učvrstiti žicama. Pri tome se rešetka kolosijeka ne stavlja direktno na spomenuti temelj, nego preko međuspoja letva 24, koje su visoke nekoliko centimetara i koje se polažu uzduž rubova betonskih ploča 4, tako da su donje strane pragova 5 samo malo udaljene od gornje strane tih betonskih ploča 4, kao što je prikazano na slici 2. Poslije se na postranične dijelove pragova 5 tako položene rešetke kolosijeka, stavljaju letve 8 koje se protežu uzduž, u koje su umetnuti temeljni vijci 9, koji su na svojim donjim krajevima uvijčani u ploču s navojima 10, pri čemu su temeljni vijci 9 tako raspoređeni na letvama 8, da ploče s navojima 10 naliježu na gornju stranu betonskog temelja 2. Gledano u uzdužnom pravcu rešetke kolosijeka, dakle pod pravim kutom prema ravnini crteža, temeljni vijci 9 smješteni su u sredini pretinaca pragova koji su postavljeni jedni za drugima. Budući su bočne strane pragova 5 nagnute, moguće je spomenute letve i tako umetnuti, da čeonom stranom naliježu na kose stranice pragova 5. To je na slici 2 potcrtano naznačeno, a prednost je u tome, da se u usporedbi s prvo spomenutim rasporedom, mogu koristiti kraći temeljni vijci 9. Concrete foundations are being cast along the planned rail route, on site in country 1. On this concrete foundation 2, above the mortar base 3, a concrete slab 4 is placed, which extends along the route or. of the concrete foundation 2 and whose width is smaller than the width of the concrete foundation 2. These concrete slabs 4, which are placed along the route one after the other, are produced in the factory. The track grid, which consists of concrete sleepers 5 and rails 6 attached to them, is placed and adjusted on the foundation prepared in this way. On the lower sides of the sleepers 5, which protrude from both sides of the relatively narrow concrete slabs 4, elastic inserts are fixed. They can be glued or temporarily fixed with wires. At the same time, the track grid is not placed directly on the mentioned foundation, but via the intermediate connection of battens 24, which are a few centimeters high and which are laid along the edges of the concrete slabs 4, so that the lower sides of the sleepers 5 are only slightly away from the upper side of these concrete slabs 4 , as shown in Figure 2. Later, on the side parts of the sleepers 5, the rails of the track laid in this way, are placed slats 8 that extend along, into which the foundation screws 9 are inserted, which are screwed into the threaded plate 10 at their lower ends, where the foundation bolts 9 are arranged on the slats 8 in such a way that the threaded plates 10 rest on the upper side of the concrete foundation 2. Seen in the longitudinal direction of the track grid, i.e. at right angles to the plane of the drawing, the foundation bolts 9 are located in the middle of the sleeper compartments which are placed one after the other. Since the sides of the sills 5 are inclined, it is possible to insert the mentioned slats in such a way that they rest on the slanted sides of the sills 5. use shorter foundation screws 9.

Nakon što je rešetka kolosijeka na taj način priređena, na betonskom temelju se sa strane stave dvije oplate 11, svrsishodno na način, da su njihovi gornji bridovi položeni tijesno uz gornje bridove letva 24, odn. donje strane pragova 5. Sad se tako omeđeni prostor 12 ispuni s betonom (slika 3), tako da i elastični umeci 7 i ploče s navojima 10 u betonu. Na kraju se temeljni vijci 9 izvade i odstrane letve 8 koje su služile kao pomoćna konstrukcija. Tu se mora naglasiti, da se temeljni vijci 9 mogu i ostaviti u pločama s navojima 10. Pomoću odgovarajuće podizne naprave se potom rešetka kolosijeka po sekcijama malo nadigne, tako da se letve 24 ispod pragova mogu izvući i odstraniti, koje su kao oplata i držači udaljenosti ispunile svoju funkciju. After the track grid has been prepared in this way, two formwork 11 are placed on the side of the concrete base, expediently in such a way that their upper edges are laid close to the upper edges of the lath 24, or the lower sides of the thresholds 5. Now the thus delimited space 12 is filled with concrete (picture 3), so that the elastic inserts 7 and the plates with threads 10 are in the concrete. At the end, the foundation screws 9 are removed and the slats 8, which served as an auxiliary structure, are removed. It must be emphasized here that the foundation bolts 9 can be left in the threaded plates 10. Then, with the help of a suitable lifting device, the track grid is slightly raised in sections, so that the slats 24 under the sleepers can be pulled out and removed, which are like formwork and holders distance fulfilled its function.

U međuprostore (pretince pragova) između krajnjih dijelova pragova 5 koji su postavljeni jedni za drugima, umeću se međutijela 13, koja se u tvornici proizvode iz betona. Takovo međutijelo 13 prikazano je na crtežima 4, 5 i 6 u različitim pogledima. Intermediate bodies 13, which are manufactured in the factory from concrete, are inserted into the intermediate spaces (sill compartments) between the end parts of the sills 5, which are placed one after the other. Such intermediate body 13 is shown in drawings 4, 5 and 6 in different views.

Međutijelo 13 ima trapezni presjek (slika 5), pri čemu njegove bočne strane 14 kovergiraju prema dolje. Njegova visina H odgovara visini praga 5, odn. malo je manja od visine praga. Na njegovoj gornjoj strani napravljen je otvoreni žlijeb 16 prema čeonoj strani 15 i od dna tog žlijeba 16 izlazi vertikalni provrt 17. Na njegovoj donjoj strani 18 ovdje su oblikovani dosjedni grebeni 19, koji se nalaze na ugaonim točkama zamišljenog trokuta. Raspored je takav, da se vertikalni provrt 17 za prihvat temeljnog vijka 9 unutar zamišljenog trokuta, nalazi u njegovoj sredini. Nagib bočnih strana 14 međutijela 13 tako je odabran, da te strane 14 s bočnim dijelovima pragova 5 omeđuju prema gore kovergirajući otvor 20, što je na slici 5 podcrtano crticama 21. Ta linija s crticama 21 naznačuje bočnu stranu susjednog praga 5. The intermediate body 13 has a trapezoidal cross-section (Figure 5), with its sides 14 converging downwards. Its height H corresponds to the height of threshold 5, or it is slightly smaller than the threshold height. On its upper side, an open groove 16 is made towards the front side 15 and a vertical hole 17 emerges from the bottom of this groove 16. On its lower side 18, adjacent ridges 19 are formed here, which are located at the corner points of the imaginary triangle. The arrangement is such that the vertical hole 17 for receiving the foundation screw 9 is located in the middle of the imaginary triangle. The inclination of the sides 14 of the intermediate body 13 is chosen so that these sides 14 with the side parts of the thresholds 5 border the upwardly converging opening 20, which is underlined in Figure 5 with lines 21. This line with lines 21 indicates the side of the adjacent threshold 5.

U tvornici proizvedena međutijela 15 sad se umeću u rešetku kolosijeka (slike 7 i 8). No prije nego li se ta međutijela 13 umetnu u postranične dijelove pretinaca pragova, ovdje se na bočnim stranama pragova 5 stavljaju klinovi 22. Ti klinovi su iz elastičnog materijala, na primjer iz poliuretana. Tek potom se umeće međutijelo 13 i zategne se temeljnim vijkom 9, čiji donji kraj je uvijčan u ploču s navojima 10, koja je učvršćena u betonu. The intermediate bodies 15 produced in the factory are now inserted into the track grid (pictures 7 and 8). But before these intermediate bodies 13 are inserted into the side parts of the sill compartments, here wedges 22 are placed on the sides of the sills 5. These wedges are made of elastic material, for example polyurethane. Only then is the intermediate body 13 inserted and tightened with the foundation screw 9, the lower end of which is screwed into the threaded plate 10, which is fixed in concrete.

Zahvaljujući mjerama prema izumu, mogu se kod montaže opisanog šinjskog tijela uštedjeti skupi radovi oplate, a šinjsko tijelo je ipak čvrsto i sigurno učvršćeno i to preko međuspojnih elastičnih uporišta koja izoliraju zvuk. Zahvaljujući opisanim nagibima strana 14 međutijela 13 u odnosu na bočne strane pragova 5, umetnuti klinovi 22 su u pogledu svojih položaja osigurani i ne mogu se izvući prema gore. Žlijebom 16 u međutijelu 13, glava temeljnog vijka 9 je pomaknuta prema natrag. Oborinske vode mogu otjecati preko postraničnih otvorenih žljebova. Uslijed dosjednih grebena 19 i njihovog rasporeda i položaja temeljnih vijaka 9 prema tim dosjednim grebenima, zagarantirano je besprijekorno polaganje tih međutijela 13 i kod neravnog betonskog temelja 2. Budući je aksijalna duljina 1 međutijela 13 jednaka ili manja od duljine postraničnih dijelova pragova 5, koji gledajući od tračnica 6, strše prema van, isti se mogu vertikalnim podizanjem umetnuti u rešetku kolosijeka, bez da se kod montaže moraju pomaknuti u stranu, da bi se postranično umetnuli u pretinac praga. Vijčanim spojem pomoću temeljnih vijaka 9, međutijela 13 čvrsto su spojena s temeljem 2 i čine tako nepomični ležaj za rešetku kolosijeka. Thanks to the measures according to the invention, expensive formwork work can be saved during the assembly of the described rail body, and the rail body is nevertheless solidly and securely fastened via intermediate elastic supports that insulate the sound. Thanks to the described slopes of the sides 14 of the intermediate body 13 in relation to the sides of the thresholds 5, the inserted wedges 22 are secured in their positions and cannot be pulled upwards. With the groove 16 in the intermediate body 13, the head of the foundation screw 9 is moved back. Rainwater can run off through lateral open gutters. Due to the adjacent ridges 19 and their arrangement and the position of the foundation screws 9 in relation to these adjacent ridges, the perfect laying of these intermediate bodies 13 is guaranteed even with an uneven concrete foundation 2. Since the axial length 1 of the intermediate body 13 is equal to or less than the length of the side parts of the sills 5, which from the rails 6, they protrude outwards, they can be inserted into the track grid by vertical lifting, without having to be moved to the side during assembly, in order to insert them laterally into the threshold compartment. Through a screw connection using foundation screws 9, the intermediate bodies 13 are firmly connected to the foundation 2 and thus form a stationary bearing for the track grid.

Kod naprijed opisanog i prikazanog primjera izvedbe izuma, rešetka kolosijeka leži na betonskom temelju 2, koje se izvodi na licu mjesta. Za kolosiječne dionice ili industrijske kolosijeke, mogu se na odgovarajuće planirano tlo položiti u tvornici proizvedene ploče koje tada čine temelj, na koji se rešetka kolosijeka može položiti na naprijed opisani način. In the previously described and shown example of the embodiment of the invention, the track grid rests on a concrete foundation 2, which is performed on site. For track sections or industrial tracks, factory-produced panels can be laid on the appropriate planned ground, which then form the foundation, on which the track grid can be laid in the manner described above.

Claims

1. The upper machine with paired rails and sleepers placed diagonally to the rails and connected to them, which with their side parts lie on the base plate mainly made of concrete, via interconnected elastic inserts, and between the sleepers that are placed one behind the other along the track grid, provided are intermediate bodies connected to the base plate, which are intermediate bodies produced in the factory from concrete, indicated by the fact that the external contour of the section of the intermediate body (13) is in the form of a trapezoid, with the lateral parts of the sides (14) near the sills converging downwards, and the axial length ( 1) the intermediate body (13) is equal to or slightly smaller than the length of the side parts of the threshold (5) which, as seen from the rails (6), protrude outward. These intermediate bodies (13) are connected to the base plate with screws, whereby inserts, mainly wedges (22), are also arranged between the adjacent sides of the side parts of the thresholds (5) and the intermediate bodies (13).

2. The upper machine according to claim 1, characterized in that the intermediate bodies (13) have vertical holes (17) in the middle for receiving the fastening screw fixed in the base plate.

3. Upper machine according to claim 2, characterized in that the area immediately around the vertical bore (17) passing through the intermediate body (13) is recessed towards the surface (23) of the intermediate body (13).

4. The upper machine according to claim 2, characterized in that the area recessed towards the surface (23) of the intermediate body (13) is shaped as a groove (16) that protrudes towards the front side (15) of the intermediate body (13).

5. The upper machine according to claim 1, characterized in that the lower side (18) of the intermediate body (13) has adjacent ridges on that side.

6. The upper machine according to claim 5, characterized in that the adjacent sides (14) of the intermediate body (13) and the side part of the threshold (5) delimit an upwardly converging crack (20) for receiving a wedge or wedges (22) (Figure 5).