DE29814092U1 - Anchoring for elements of a building staircase - Google Patents

Description

Dipl.-Ing. A. Wasmeier Dipl.-lng. H. Graf

Authorized before the European Patent Office + Trade Mark Office · Professional Representatives before the European Patent Office + Trade Mark Office

Patent Attorneys PO Box 10 08 26 93008 Regensburg

German Patent Office
Zweibrückenstr. 12

80297 Munich

D-93008 REGENSBURG P.O. BOX 10 08 26

D-93055 REGENSBURG GREFLINGERSTRASSE 7

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(0941)79 20 85 (0941)79 20 86 (0941)79 51 06

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A/g 18.454a

Date
Date

05. August 1998 gr-kar

Applicant:

Richard Auburger Hackeisberg 8 93170 Bernhardswald

Title:

Anchoring for elements of a building staircase

Counter: Bayerische Vereinsbänk (bank code 750 200 73) 5 839 Postgiroamt München (bank code 700 100 80) 893 69-801 Place of jurisdiction Regensburg A18454.DOC
15.07.98 15:26

Anchoring for elements of a building staircase

The innovation relates to an anchoring according to the generic term protection claim or 6.

The aim of the innovation is to demonstrate an anchoring which, with a simple design, enables the adjustment of elements of a building staircase, in particular a self-supporting building staircase, to compensate for tolerances during installation.

To solve this problem, an anchoring is designed in accordance with claim 1 or 6.

Further developments of the innovation are the subject of the subclaims. The innovation is explained in more detail below using the figures and exemplary embodiments. They show:

Fig. 1 shows a simplified representation and a top view of a tread plate of a building staircase anchored to a building wall;

Fig. 2 shows an enlarged vertical section through the tread plate and through an anchor of the staircase in Figure 1;

Fig. 3 shows a simplified representation and a side view of the upper post of the building staircase;

Fig. 4 shows a simplified sectional view of an adjustable spacer element for use with the post of Figure 3.

In Figures 1 and 2, 1 is a building wall, to which a building staircase is connected on one side, of which only one step or tread plate 2 is shown in Figures 1 and 2, which is made of wood, for example. On the side shown in Figures 1 and 2, the tread plate 2 is anchored in the building wall 1 using two wall anchors 3. Each wall anchor consists of a bolt 4, which is

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one end engages in an adapted hole in the tread plate 1 and its other end is accommodated in a sleeve 5 made of an elastic material, for example rubber or an elastic plastic. The wall anchor 3 is inserted into a wall hole 6 in the building wall 1 with the sleeve 5. The sleeve 5, which is circular-cylindrical on the outer surface, has a hole 7 into which the bolt 5 engages and which lies with its axis parallel to the axis of the circular-cylindrical peripheral surface of the sleeve 5, but is radially offset from the sleeve axis. Due to this eccentric arrangement of the inner hole 7 and the bolt 4 in relation to the axis of the sleeve 5, the tread plate 2 can be adjusted both in height, i.e. in the vertical direction and in the horizontal direction, by turning the sleeve 5 accordingly in the hole 6, in order to be able to optimally compensate for tolerances that occur, in particular when making the wall holes 6. This compensation is facilitated by the fact that each tread plate 2 is held with two wall anchors 3 and each wall anchor 3 can be adjusted by turning the sleeve 5 in the wall hole 6 accordingly and, in addition, the sleeves 5 are made of elastic or rubber-like material.

As shown in Figure 2, the bolt 4 is surrounded by a protective sleeve 4', for example made of cardboard and/or plastic, which extends to the sleeve 5. The bolts 4 can be pre-assembled on the building wall or partition 1, namely before plastering and painting work, etc. After the building wall or partition 1 has been plastered or after painting work has been completed, the protective sleeve 4' is removed for the staircase assembly. On the one hand, the protective sleeve prevents the bolt 4 from becoming dirty during plastering or painting work. On the other hand, the protective sleeve 4' also ensures that after the protective sleeve 4' has been removed, a free annular gap is formed around the bolt 4, so that movements of the bolt 4 do not lead to the plaster 1' breaking out around the bolt due to the elasticity of the sleeve 5. The protective sleeve 4' can also extend over only a partial length of the bolt 4.

06-08-98

Figure 3 shows the upper post 8 or the post 8 at the end of a staircase. The railing of the self-supporting building staircase (not shown) is attached to this post 8, among other things. Two screw or anchor bolts 10 and 11 are used to anchor the post 8 to the upper landing 9 or to the building ceiling there, each of which penetrates the post 8 and of which the upper bolt 10 engages a heavy-duty anchor 12 anchored to the building ceiling 9, which is provided behind a front board 13 protruding over the front surface 14 and is concealed by the latter. The lower bolt 11 is anchored in the building ceiling below the heavy-duty anchor 12. On this bolt 11, between the side of the post 8 facing the building ceiling 9 and the vertical edge surface 9' of the building ceiling 9, a spacer 15 is provided, which bridges the distance between the post 8 and the front surface 14 caused, among other things, by the front board 13. The spacer 15, which is shown in detail in Figure 4, is made of two parts and consists of two sleeve-like elements 15' and 15", of which in the embodiment shown the element 15' is provided with an internal thread 16, into which the outer casing 17 of the element 15" engages, so that the length of the spacer 15 can be adjusted by turning the two elements 15' and 15" relative to one another. The two elements 15' and 15" form a common, continuous bore 18 through which the bolt 11 is guided.

The innovation has been described above using exemplary embodiments. It goes without saying that changes and modifications are possible without thereby departing from the inventive concept underlying the innovation.

11 List of reference symbols 1 building wall 2 Stair step or tread 3 Wall anchor 4 bolt 5 15" Sleeve 6 Wall drilling 7 Sleeve inner bore 8th post 9 Building ceiling 10, bolt 12 Heavy-duty anchor 13 Front board 14 Ceiling front face 15 Spacer 15', element 16 inner thread 17 External thread 18 drilling

A1B4S4 DOC

Claims (9)

Protection claims 1. Anchoring for elements of a building staircase, characterized in that the anchoring element is a wall anchor (3) for fastening a stair step or tread (2) to a building wall (1), the wall anchor (3) consisting of a bolt (4) which can be anchored at one end in the tread (2) and at the other end in a wall bore (6), and of a sleeve (5) made of elastic material which receives the other end of the bolt (4) with an inner bore (7), and that the inner bore (7) of the sleeve (5) is provided eccentrically to the sleeve axis. 2. Anchoring according to claim 1, characterized in that the bolt is made of steel. 3. Anchoring according to claim 1 or 2, characterized in that the sleeve (5) of the wall anchor (3) consists of rubber or of a rubber-elastic plastic. 4. Anchoring according to one of the preceding claims, characterized in that the other end of the bolt (4) is anchored in the material of the sleeve (5), for example by vulcanization. 5. Anchoring according to one of the preceding claims, characterized in that the bolt (4) is surrounded by a removable protective sleeve (4'). 6. Anchoring for elements of a building staircase, characterized in that the anchoring is the fastening of the post (8) provided on an upper stairway, which has at least two bolts (10, 11) offset from one another in the direction of the post height, which are each anchored to a building ceiling (9), wherein on the lower bolt between the post (8) and a ceiling surface (14) a spacer (15) enclosing the bolt (11) is provided. A1845ADOC is provided, and that the spacer (15) consists of two parts (15', 15") which are adjustable relative to one another in the axial direction of the lower bolt (11). 7. Anchoring according to claim 5, characterized in that the two parts are each designed like a sleeve. 8. Anchoring according to claim 5 or 6, characterized in that the two parts are adjustable relative to one another by means of intermeshing threads (16, 17). 9. Anchoring according to one of the preceding claims, characterized in that the two parts (15', 15") of the spacer (15) consist of metal.