HUT77763A - Circular staircase - Google Patents

Abstract

A circular staircase has individual steps made of stone, in particular natural stone, mounted on the central newel. The steps have each a reinforcing member (4) with one end that may be joined to the newel (2) and another end that may be pre-stressed by a pre-stressing element (7) against the step (3).

Description

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EXTRACT

The invention relates to a spiral staircase having a separate, associated with a spool stone, preferably natural step with which the tread is an ironing member ^ya) * are provided, one end of which is connected to the spindle (2), the other end of which a tensioning element (^ using can be clamped to the step (3).

Figure 1

DISCLOSURE

COPIES

caracole

Various spiral staircases are known.

For example, the US-PS 1,446,454 spiral staircase: The Pole Runners lie on steel brackets or steel rails and are mounted on a spindle (Central Supporting Shaft). Producing a spiral stair of this type is costly, since special brackets or special stairs are required. requires steel. The same applies to spiral staircases that have welded stairs exterior (and sometimes internal). They require a lot of space and are very expensive to weld. Often these stairs give an overly massive impression.

In addition, FR-A 23 17442 is known. In this case, although the single steps are mounted console to the wall of the building, the steps are interconnected. The required load-bearing capacity of the Grades is ensured by the reinforcing steel bar mounted on them. Ironing is carried by the pins connecting the Rails.

Further, spiral stairs are known in which each stage consists of two horizontally separated layers. Between the two layers is one _; fiberglass reinforcement is glued. The Rails are supported by pins.

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In these cases, the construction and installation of the Steps requires extremely precise work, as there must be no gap between the steps and the very top must be exactly level with the floor.

These spiral stairs are limited by 200 cm in diameter. This type of staircase can hardly be used outdoors as the two layers can separate when exposed to frost.

It is therefore an object of the present invention to provide a spiral staircase which is as simple as possible to manufacture and install.

The present invention solves this problem by:

Spiral staircase in the following composition: freestanding, non-connected natural stone stairs with an ironing member. One end of this can be connected to the spindle, and the other clamps the _t steps using a Pest element. The ironing member crosses the stairs lengthwise, thus applying pressure only to the stone. This is obviously proportional to the strain load.

A staircase produced in this way can be up to 400 cm in diameter or even outdoors. For the outdoor version, it is highly recommended to choose the Metal parts from stainless steel and the Grades from granite.

Go to the 3-iK page of the original description.

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- 3 The cruciate member is sheathed and has an outer rim flange. The sleeve can be connected to the ironing member while the sleeveThe flange is on the outside of the Rails. The sleeve is a continuous thread, which corresponds to the external thread of the ironing member. The stepping of the steps is brought about by the screwing of the sleeve onto the iron member. It is statistically particularly advantageous to place the ironing board in the top of the stairs. In this way, even a screw tube with a diameter of 4Θ0 cm can be realized.

It is also an object of the invention that the studs of the posts of the railing posts may be secured to the sleeve. Because the sleeve is threaded, the railing bolt will be screwed into it. The great advantage of this is that it increases the useful width of the stairs and thus increases the degrees.

For easy installation of the stairs, it comes with a strap attached to the spool. It is usually made of steel; the ironing member is welded before. The strap itself is fastened to the spindle by screwing it · · tf • · · · ···. Since each step has its own strap, it is very easy to install the step.

Installation is facilitated by the fact that the spindle itself consists of several interlocking parts.

The invention is illustrated by the following drawings.

Drawing 1 ......... spiral staircase view

Figure 2 ......... sectional view along line II / II

Drawing 3 ......... enlarged X detail

1, the spiral staircase (1) is composed of the following parts; spindle (2) and separate steps (3). The spindle consists of spindle members (2a), each member having a pin at one end and a corresponding recess (2b) at the other. This allows the members to be joined together. For spiral stairs with a diameter of 3Θ0 cm and smaller, the spindle may consist of a single part.

Figures 2 and 3y ₍ diagrams illustrate the training of the steps and the equipment of the spinner).

The step (3) comprises two reinforcing members reinforcing horizontally. These bobbin ends are welded to the strap (5).

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The boreholes (3a), which contain the iron members, are larger in diameter than the rod. this creates a cavity that can be filled with mortar. To clamp the step (3), the sleeve (7) is screwed onto the ironing member. Therefore, the sleeve (7) is provided with an internal thread (7a) corresponding to the external thread of the member (4). In addition, the sleeve (7) has an outer flange (7b) which compresses the step front (3c). The pressure can be increased or decreased by twisting.

Corresponding oval holes (2a) will be drilled to engage the strap (5) on the spool member (2a). The screws (8), which are connected to the strap (5), are inserted into these. The advantage of oval holes is that they facilitate the placement of stairs. The screws will be mounted and tightened from the inside, inside the spindle, with a special long wrench.

For mounting the armrest, the pillar (7) comes into the inner thread (7a) by screwing the pillar (3) — the retaining pin (8). The pin (9) is secured to the inner thread of the sleeve (7) by a nut (11) which is tensioned on the flange (7a) running around the sleeve (7).

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Claims (10)

TalaimaQyi_iaeo54fiK -4 -: - Snail steppe Single oz air clock oz mounted fe-t-eg terwesKö— -lépcsőfokokból-a-11, -melynél · _{ζ-degrees-of-a} · vasalásitagofr This -feartalmaznaK.-vooo-Ia§i tagnak- (4> ··, j "1-A-EMZ ö _z je, first set -to-end of the spindle comes ÖQQze- Knitter — while at the end of his Maoik I have — a tension pen — (7) —jen — Pclooavaif, —which is the stair; 4, The following spiral staircase: Separate cantilevered natural stone steps (3) in a central axis, spindle (1). one of the steps (3) is provided with a reinforcing member (4) for reinforcing steel. This end of the ironing member (4) can be connected to the spindle (2), while the other end is clamped with the help of a prestressing member to the step - Degree. 2. Spiral staircase according to No. 1. by claims, characterized _{zz z} denominator in that the rod and the step as vasalásitag crossed lengthwise. 3. Spiral staircase according to no. on demand, a sign plate that the tension member (7) is provided with an outer circumferential flange (7b) as a sleeve, while the sleeve (7) may be connected to the rod-shaped reinforcement member; the flange (7b) being tensioned on the forehead (3c) of the step (3). 4. Spiral staircase as shown in Figures 1 or 2. claim, _Z is characterized in that the vasalásitag (4) is arranged in the tread felsöharmadába (3). 5. Spiral staircase as shown in No. 3. According to the claim, the plate of the sleeve (7) is provided with an internal thread (7a). 6. Spiral staircase according to No. 5. on demand, the characteristic feature is that the rod-shaped iron member (4) is provided with an external thread (4a) which corresponds to the internal threads (7a) of the sleeve (7). 84849-2517 SR-Sch / / / 7. Spiral staircase as shown in No. 5. On request, it is characterized in that a socket (9) can be mounted on the sleeve from outside, which holds the column (10) of the Handrail. 8. Spiral staircase as shown in fig. According to claim 1, the spindle (2) is provided with a strap (5), while the reinforcing member (4) can be connected to the strap (5). 9. Spiral staircase according to No. 8. on demand, each has its own drip tray (3) each strap ¢ 5) Play. 10. Spiral staircase according to No. 1. as required, the plate indicates that the spindle (2) is made up of separate elements (2a) that can be joined together. ol (+ - 5 hrs / sec Ϊ (I WO 96/23941 PUBLISHING *. EXAMPLE ···· ···· PCT / DE95 / 00531 ·· · · Fig.2 • · «·«