DE20202958U1 - Spacers for building stairs - Google Patents

Description

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Spacers for building stair steps

The invention particularly relates to a device for aligning and holding stair steps during construction or assembly of a staircase.

The usual work process when assembling a solid wood staircase, for example:

In the example, the stairs are designed as follows:

Treads milled into the stringers on both sides, without risers (open staircase)

usual

Work process: -assemble and fit the wall-side cheeks

-Inserting the steps into the recesses

-attachment of the free-sided cheeks
Problem: putting on and tapping the exposed cheek without the steps falling down

This is a very sensitive, tricky step and quite difficult to carry out, since the steps inserted on the wall side are not attached at this moment and the free-sided stringer has to be put on.

In general, the steps sag downwards and, in the worst case, can even slip out of the recess (on the wall side) and fall down.

To avoid this, many hands are often needed and/or the steps are supported by previously adjusted wooden spacers.

Disadvantages here include:

-that usually many people are needed

-the danger that the spacers can tip over

-that new spacers must be cut for each staircase

-that the steps can still slip out

The invention is based on the object of specifying an adjustable device for holding stair steps, among other things, during assembly and installation.

The object is achieved according to the invention by the features of the characterizing part of claim 1.

The subclaims are necessary according to the use or relate to particularly advantageous embodiments of the invention.

The invention is essentially based on the idea that a height-adjustable
Device that brings the steps to the desired distance (clear gradient height).
In addition, according to claim 2, the steps can be connected to each other, so
that two steps can be fixed to the respective height and sufficiently firmly connected to each other.

According to claim 1, it is conceivable: a rod with an external thread, which is screwed into a pipe with an internal thread. Of course, two parts running parallel to each other, or parts sliding into each other (with a freely selectable profile) can also meet the requirements. These are then fixed at the respective height.

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The two ends of the invention according to claim 1 can, if special protection against scratches or the like is required, be provided with parts according to claims 2 and 4.

In the example of solid wood stairs, the underlying task has been particularly proven by the use of plastic tubes that can be rotated into one another by means of threads, according to the invention by the features of the claims.

Of course, to build an entire staircase you need several of these devices.
It has proven to be advantageous to brace the entire flight of stairs.

If you now create a fixed step (e.g. stair start, exit, or fixed corner step) and start attaching the fixtures from bottom to top, you will get a correspondingly firm step connection and you can then tap open the free-side cheek and possibly screw it on without any problems or danger.

It has proven particularly useful if the spacers have a measuring scale and, ideally, there is also a locking mechanism (e.g. a knurled screw). This means that the device can be set to the required distance in advance if necessary, or can remain set if there are several stairs with the same gradient.

Of course, new techniques can be used as a holding device according to claim 2, but for economic reasons it is advisable to use commercially available clamping, pressure, grip, tooth, screw, lever clamps or clamps or the like, or to connect them, or to combine them, or to design them in such a way, or to provide them with additional parts, that they can be connected to or attached to the adjustable spacer according to claim 1.

Further details can be found in the following exemplary embodiment, which is explained using figures. They show:

Fig. 1: shows, according to claim 1, two simple embodiments:
a.) two interlocking threads 1,2 with rubber caps 3.
b.) two interlocking profiles 7, with locking screw 6 (e.g. aluminium rectangular profile with measuring scale 8)

Fig. 2: shows the design according to the rack and pinion principle 5. The height adjustment is
Can be adjusted precisely at any time by turning the knurled knob 6.
Here the step pad 9 with rubber pad 4 is large dimensioned so that,
according to claim 2, there is sufficient space to clamp the respective spacer to the upper or lower step.

Fig. 3: shows various design options in practical application:

a) simple thread with rubber caps.

b) Height adjustment by thread with large step support

- top with fixed clamping device

- below with attached screw clamp

c) Height adjustment by sliding aluminium profiles, lockable by knurled screw

- top with step support and clamping device - bottom with support foot

List of reference symbols: ,

1 threaded rod , ·* ■

2 Pipe with internal thread

3 rubber caps j

4 Soft covering (rubber, cork, etc.)

5 Rack %

6 Knurled screw *

7 -Aluminium profile·

8 Measuring scale

9 Step support

10 Wall panel

11 Free cheek

12 steps

13 Milling

14 Ceiling edge/cheek supports

Claims (4)

1. Device for the construction and assembly of stairs, characterized in that a height-adjustable device holds two steps at the desired size. 2. Device according to claim 1, characterized in that there is a step support at at least one end of the device and a tensioning or clamping device is or can be attached to this. 3. Device according to claim 2 or 3, characterized in that the adjustable height can be precisely set using an attached measuring scale and can ideally be fixed by means of a knurled screw or the like. 4. Device according to claims 1 to 3, characterized in that, according to the use, both ends of the device are covered with a soft, anti-slip material, or consist entirely of this material.