DE2005146A1 - Spiral staircase - Google Patents

Description

Dr. Georg Becker ₄ <Münster / westf., February 3rd, 1997

Patent attorney Qoidetraee 23 - χβΐ. ο 70 32

Applicant: Johannes Brauckmann, 4431 Schöppingen / Westf., Bergstrasse 14th

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"Spiral staircase"

The invention relates to a spiral staircase made up of a plurality of vertical steel sleeves arranged one above the other, each of which has a supporting structure on the side and a suitable covering material existing stairs are attached.

A spiral staircase is known, which essentially consists of a centric support tube and stairs, which provided at the end with vertical sleeves as a support are. This spiral staircase is assembled in such a way that the sleeves with the ones on them Stair treads are pushed onto the previously installed centric support tube from above. the

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The stairs themselves are made from a supporting structure, ζ. B. a trough-shaped lower part, and a suitable one Covering material, such as wood or stone slabs, built up.

The disadvantage of the known construction is that there is always a support tube with a certain height of the respective storey adjusted length must be made before the installation of the stairs in the company. In addition, the delivery to the construction site and the introduction and installation of the support tube difficult and cumbersome, so that the Installation can only be carried out by specialists. Finally, it is also disadvantageous that the known stair construction can not be brought in everywhere.

Another embodiment of a spiral staircase is also known in practice. Again, there are stairs with related end vertical sleeves that are attached to a threaded rod. Every single one Sleeve fixed by screwing before the next sleeve is put on. The installation takes place in detail this staircase so that first a base plate is embedded in the floor and the threaded rod

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is anchored. Then a so-called differential disk is applied to the foundation and with the help of one of above over the entire length of the threaded rod set down nut. Then the first sleeve with Put on the stair step, with the sleeve in an undercut the differential disk; t. Eventually becomes a Another differential disc is placed on the existing sleeve and with the help of another, turned down from above Hex nut pressed onto the sleeve.

The disadvantages "of this construction are so far the same as with the spiral staircase described above, as Here, too, a long rod is used, which must be adapted to the respective floor height. aside from that is to be mentioned as a special disadvantage that the nuts to attach the individual egg sleeves from above over the entire thread rod must be turned down to a To attach differential disk. But that is very cumbersome. Also the steps with the sleeves must Of course, abandoned above and led down will. It can be seen that such a procedure is difficult, cumbersome, complicated and laborious as well

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is wage-intensive. The assembly is increasing a lot overall take a lot of time.

The invention has therefore set itself the task of avoiding the disadvantages of the known construction and a To create spiral staircases from easily manufactured prefabricated parts that can be shipped anywhere quickly and without

let each circumstance put together to form a spiral staircase.

A spiral staircase is used to solve this problem a plurality of vertical steel sleeves arranged one above the other, each of which has a supporting structure on the side and a suitable covering material existing stairs are attached, proposed by the invention, that the sleeves twisted off at one end and twisted out at the other end with the interposition of of pitch compensation rings plugged into each other and in the inner ring grooves formed pressure plates with a central Bore are arranged through each of which a stud screw grips, on which over the pressure plate upwards protruding thread an elongated hexagon nut is unscrewed and its lower thread part in the upper

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Part of an extended one below that belongs to the next lower pressure plate-sleeve combination Hex nut engages.

The ends of the steel sleeves are the same off equidistant in the longitudinal direction and be rotated, or it can be the a, turned out deeper in the assembly upwardly to be disposed end to the strength of the printing plate to be turned off as the (other (lower) end. _R

at the bottom of the spiral staircase is an initial link provided, which consists of a base plate with an attached, internally turned steel sleeve and a centrally fastened one There is an internally threaded hexagonal sleeve.

At the top of the spiral staircase, however, there is one as | widened stair step, also provided with a steel sleeve, podium plate is provided, the one with the head side of the respective upper ceiling with the help is firmly connected by plug and expansion bolts.

An embodiment of the invention is shown in the drawing and is described in detail below with the aid of this drawing! ©

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Figure 1 shows a vertical section through the nested Steel sleeves with a side view of the fasteners,

Figure 2 shows a plan view of the spiral staircase and the upper platform plate and

Figure 3 shows a longitudinal section through the platform plate and the upper concrete ceiling.

At the beginning of the installation of the spin-r according to the invention deltreppe becomes a base plate Io on the storey floor attached or embedded in these. The stand plate Io has a welded steel sleeve 11, which is attached to her upper, open end is turned out. Furthermore, there is Io on the base plate and the steel sleeve 11 in the middle a hexagonal sleeve 12 having an internal thread.

The steel sleeves 13 then used to build the spiral staircase are turned off on the outside at one end and turned off on the inside at the other end. Such a sleeve 13 is inserted with its twisted end part into the steel sleeve 11 of the base plate Io with the interposition of a pitch compensation ring 14. Then a

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Pressure plate 15 on the resulting from the turning Base of the sleeve 13 is applied. The pressure plate 15 has a central bore through which one acts as a clamping screw provided stud 16 summarizes. On the upper one An elongated hexagon nut 17 has previously been screwed on tightly to the thread of this pin socket 16. The free Threaded part 18 and the shaft 19 are through the bore the pressure plate 15 inserted so that the extended Hexagon nut 17 is located above the pressure plate 15, but still at a distance therefrom. With a wrench the hexagon nut 17 is now rotated, whereby the screw thread 18 is in the internal thread of the six edge sleeve 12 pulls into it. The hex nut 17 will be like this further twisted for a long time until it tightens on the upper side of the pressure plate 15. In this way it is achieved that a downward pull is exerted on the pressure plate 15 and this itself exerts a pressure on the steel sleeve 13 exercises. On the steel sleeve 13 is according to that described Embodiment welded the supporting structure 2o. It can of course also be attached in another way be.

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Then a compensating or pitch spacer ring 14 is applied again and a steel sleeve 13 with it Support structure 2o inserted into the previous steel sleeve 13, placed a pressure plate 15 and a stud screw 16 with the hexagon nut 17 attached to it inserted through the bore of the pressure plate 15. The free one Threaded part 18 of stud 16 grips when turned

^m the hexagon nut 17 now into the extended upper part of the hexagon nut 17 below and causes a pull on the upper pressure plate 15t which in turn presses the steel sleeve 13 downwards.

In the exemplary embodiment shown in FIG. 1, one of the steel sleeves 13 can be seen in each case End turned further than the other end turned off, so that an inner ring groove also occurs when plugging together, if pitch compensation rings are not used. But since such compensation rings are always to achieve the required pitch height are required, it is not absolutely necessary to differentiate the steel sleeves to be turned off or off deeply, because the use of the pitch compensation rings also means that off and

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turned sleeve ends for inserting the printing plates required ring groove arise. ·

In FIG. 2, a platform plate 21 can be seen which can be viewed as a widened step and also with a steel sleeve 13 can be inserted into the preceding steel sleeve 13 located underneath. The attachment of the platform plate 21 takes place according to the |

FIG. 3 from above with the aid of screw bolts 22 and from the side by means of expansion bolts 23. The platform plate 21 also provides the overall mounting of the Spiral staircase.

The subject of the invention has compared to the known Embodiments of spiral stairs have considerable advantages. At first it should be mentioned that according to the prefix | beat the invention neither a centric support tube nor a duo-going visual spindle is more necessary. Rather, the fire construction is one Spiral staircase in a modular system, made from standardized, prefabricated in the company. Prefabricated components can be assembled is. The parts; are easier to manufacture in operation

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and put in stock. Idle times in operation can easily be exploited. The prefabricated parts can already be painted, covered or sealed. The shipping is in that no screw spindle and a central support tube is no longer necessary, is greatly facilitated. With the invention Anyone can share the new spiral staircase and install it themselves. It is also very advantageous that there are also installation options are given where there is no longer any installation option with a staircase welded together, such as a stairway to the ground.

The supporting structure can consist of steel tubs in a known manner, which are covered with wooden or marble steps, filled with screed and provided with carpeting or PVC. Instead of the tub, however, profile bars with inlaid gratings can also be used. All steps are freely cantilevered and do not have to be connected from step to step at the outer end. Every staircase can be left and right as well as every display and slope can be changed during assembly.

Claims: 109834/0745

Claims (5)

2005 UB Claims rl .J spiral staircase from a plurality of stacked vertical steel sleeves, on which each side consists of a supporting structure and a suitable. Covering material for existing stair treads freely cantilevered are attached, characterized in that the twisted off at one end and twisted at its other end Sleeves (13) with the interposition of compensating rings (14) plugged into one another and pressure plates (15) with a central bore in the inner ring grooves formed are arranged through each of which a stud screw (16) grips, on which protrudes over the pressure plate (15) upwards An elongated hexagon nut (17) is screwed on tightly and its lower thread part (18) engages in the upper part of an elongated hexagon nut (17) located below and belonging to the next lower pressure plate-sleeve combination. 2. Spiral staircase according to claim 1, characterized in that "the ends of the steel sleeves (13) in the longitudinal direction of the same are turned off and turned off the same distance or one end to be arranged upwards during assembly turned deeper than the thickness of the pressure plate (15) . '■: 1098347 0745 2005-Ua - 12 - the other (lower) end is twisted off. 3. spiral staircase according to claim 1, characterized in that at the lower end of the same an initial member is provided, which consists of a base plate (lo) with attached, internally turned steel sleeve (11) and centrally fastened hexagonal sleeve (12) with an internal thread ^ consists. 4. Spiral staircase according to claim 1, characterized in that at the upper end thereof a platform plate (21) which is designed as a widened step and is also provided with a steel sleeve (13) is provided. 5. spiral staircase according to claims 1 to 4, characterized • · indicates that the pressure plates (15) are equipped with reinforcing P elements. Considered publication: German utility model 1 991 185 109834/0745 Blank page