FR3085175A1 - HELICAL STAIRCASE WITH A REVOLUTION AXIS CONSISTING OF A PIPE THAT ALLOWS THE DISCHARGE OF HEAT FROM A HEATING MEANS - Google Patents

Abstract

The invention relates to a helical staircase (spiral staircase) associated with a heating means such as a wood stove for example. Staircase (1) of helical type, installed in a house with floor (A), ceiling (B) with walls (C) and (D) and a railing (E), which includes supports (4) provided with steps (5) and (6) characterized in that its axis of revolution consists of a pipe (3) which allows the evacuation of hot gases (smoke) from a stove (2). Said stove (2) can be integrated specifically or a standard model specifically connected to the pipe (3).

Description

The present invention relates to a spiral staircase (spiral staircase) associated with a heating means such as a wood stove for example.

Traditionally, helical staircases are made for the most part with a central tube which is the "backbone" which supports the steps, and which are most often fixed cantilevered on said central tube.

The advantage of this type of staircase is to reduce the size of the staircase, while offering an original, elegant design, and economical in construction and installation.

The mechanically welded metal solution is the most common for its manufacture.

Traditionally, wood (or charcoal ...) stoves use pipes for their evacuation of hot gases (smoke), hence their name "stove pipe". These rather unsightly and bulky stove pipes, most often constitute a wart in the interior decoration of a house.

The said stove pipes radiate insufficiently in the house the heat which it dissipates outside, constituting a significant energy loss.

The helical staircase (preferably) according to the invention overcomes these drawbacks. For this, it mainly comprises a central tube (the “vertebral column” previously mentioned) which also becomes a heat source supplied by a heating means (solid or gas fuels, electrical appliance, etc.), preferably said central tube. therefore constitutes according to the invention the stove pipe. So the stove pipe is discreet and it communicates its heat to the steps of the stairs which behaves like a radiator. The invention provides that the steps (the part or rest of the foot), if they are made of a flammable material, will be at a safe distance in accordance with the legislation: standard N F DTU 24.1.

The invention also provides that the areas having a temperature which can cause burns, will be provided with protection, for example sleeve around the stove pipe part. The purpose of the staircase according to the invention is to radiate maximum heat without any danger for the inhabitants of the house.

By combining spiral staircase and heating means, the invention optimizes the occupancy of space and the heat radiation.

According to a first embodiment, the stove according to the invention is particularly designed to integrate with the staircase according to the invention, it constitutes a set, a pair of staircase-stove, particularly compact and elegant.

According to a second embodiment, the stove is of standard design, available in the catalogs of the various manufacturers of stoves, its connection to the staircase according to the invention is possible because the pipe-spine of the staircase is provided with a diverter (preferably 45 °) which deflects and therefore externalizes the stove / staircase link.

Traditionally, the stove pipes which constitute the "backbone" of the staircase / heater, all have at their ends a male and a female zone which allow them to be connected together with a maximum of tightness.

The accompanying drawings illustrate the invention:

Figure 1 represents in a house the invention in its configuration integration of the stove with the staircase.

Figures 2, 3 show the staircase-stove of Figure 1 respectively according to a side view and a rear view of Figure 1.

Figures 4, 5 and 6 show the 3 standardized views of a standard stove connected to the staircase according to the invention.

Figures 7 and 8 show an improvement in the landing step of the staircase according to the invention.

Figure 9 is a view of a model of protective sleeve.

Figure 10 is a view of an element (module) in the configuration where the central pipe is made up of several of these modules.

Figure 11 is a view explaining the assembly of said modules together. FIG. 12 is a sectional view along A-A of FIG. 11.

With reference to these drawings, the similar elements have identical numbers.

According to a first embodiment, subject of views 1 to 3, the invention relates to the embodiment where the stove (2) is integrated into the staircase (1). The invention is positioned, for example, in a house which includes a lower floor (A), an upper floor (B), a left wall (C), a right wall (D) and a railing (E).

In this configuration the staircase (1) includes:

- a stove (2) directly attached (molded, screwed or welded for example) to the central pipe (3) ("spine") through which the hot gases (smoke) are evacuated. When the lower part (3a) of the central pipe is at the start of the staircase (1) (the invention provides for several stoves in series in upper floors), the latter is preferably a plugged element in its upper end so that the smoke does not descend into the said pipe (3a). In this embodiment, it is clear that no foot is necessary to support the stove (2), which facilitates the maintenance of the surrounding floor.

- a base (3b) coaxial with the tube (3a) which is fixed to the floor (A).

- supports (4) of steps (5); said supports (4) are integral with the tubes (3) and (3a) by a connecting means (molding, welding, screwing ...) which preferably allows thermal transfer from the pipe (3) to the supports (4) .

- a landing step (6) which ends a first stage and possibly begins one or more following stages.

- if necessary at least one sleeve (7) protects the inhabitants of the house from any burn by preventing direct contact with the tubes (3), (3a) and (30) which is a pipe allowing the exit of the fumes from the stove (2) towards the outside of the house, but which is no longer intended to support steps.

- in a spirit of integration and design, a wooden chest (8) is integrated into the staircase (1).

According to a second embodiment, subject of views 4 to 6, the invention relates to the embodiment where the stove (21) is of a standard type which is connected to the staircase (1).

In this configuration the staircase (1) includes:

- similarly to the integrated stove configuration, a base (3b), a pipe (3a) which does not conduct smoke, a central pipe (3), supports (4), steps (5) and a landing step (6), as well as a pipe (30).

- very specifically, a connection (33) between the lower pipe (3a) and the pipe (3), this connection (33) has a deviation (32) which cooperates with an elbow pipe (31) to connect the smoke outlet of the standard stove (21), which can be seen has legs if the standard stove (21) has them.

According to a variant (FIGS. 7 and 8), in order to conserve maximum heat in the floor where the stove according to the invention is located, the landing step (6) consists of more or less 3 sectors (6a), ( 6b) and (6c) which are manually or electrically deployed according to (x) to obstruct or open the hopper of the staircase (1), thus separating the two floors at will.

According to a preferred embodiment (Figure 7), the pipes (3a), (3) and (30) will be covered in their accessible parts, by a sleeve (7), produced in at least one piece, and sufficiently elastic to come clip onto the said pipes, thanks to an opening (7a). Embossings (7b) improve the heat radiation while maintaining a safety distance from said pipes.

According to a variant (FIGS. 10 to 12), to improve the heat exchange of the hot gases discharged with the tube (3) and therefore optimize the radiating effect of the staircase (1), a deflector (central partition) in a helix ( 9) is housed (foundry for example) inside the pipe (3), which would preferably be a module which by successive assemblies constitutes the main central pipe. The offset angle of each module, therefore of each step (5), with respect to the previous one and the next one is obtained by a keying device (9a) such as for example; the upper end of the diverter (9) of the first module which is housed in the lower end of the second module, and so on until the desired stair height (1) is obtained.

Of course, each tube (3) module is a monolithic carrier or by mechanically welded assembly or screwing of a support (4) on which the step (5) itself is fixed.

The spiral staircase (1) according to the invention is particularly intended to cooperate with a heating means such as a wood stove for example, to constitute in an integrated or connected manner, a staircase-stove assembly optimizing their dimensions, their acquisition and installation prices, their designs, while improving the thermal radiation of stove pipes.

Claims (10)

1) Staircase (1) of helical type comprising supports (4) provided with steps (5) and (6) characterized in that its axis of revolution is constituted by a central tube (the "spine") which also becomes a heat source supplied by a heating means, preferably said central tube therefore constitutes according to the invention the stove pipe. 2) Staircase (1) according to claim 1 characterized in that the heating means is a wood stove (2) specific to the invention because integrated in said pipe (3) and therefore in the staircase (1). 3) Staircase (1) according to claim 1 characterized in that the heating means is a standard wood stove (21) which is connected to the pipe (3) by means of a connector (33) having a deviation (32) , interposed between said stove (21), provided with an elbow connection (31), and said pipe (3). 4) Staircase (1) according to any one of claims 1 to 3 characterized in that the supports (4) of steps and possibly the steps (5) also constitute a means of thermal radiation. 5) Staircase (1) according to any one of claims 1 to 3 characterized in that a wooden chest (8) is integrated into the staircase (1). 6) Staircase (1) according to any one of claims 1 to 3 characterized in that a landing step (6) is provided with more or less 3 sectors (6a), (6b), (6c) which manually or electrically deploys according to (x) to close or open the staircase hopper (1) at will. 7) Staircase (1) according to any one of claims 1 to 3 characterized in that a sleeve (7) coaxial with the pipe (3) constitutes a heat protection against the risk of burns, the said sleeve (7) is produced in at least one part, which in this case has an opening (7a) which allows the clipping on the pipes (3), (3a) and (30); embossings (7b) ensure a safety distance from the pipe to which it is clipped, while allowing good thermal radiation. 8) Staircase (1) according to any one of claims 1 to 4 characterized in that the pipe (3) is a module of a step height, the coaxial assembly of several modules in order to obtain the height d 'desired staircase, is obtained by a polarizer (9a) which shifts each following step according to the angle defined between each step (5). 9) Staircase (1) according to any one of claims 1 to 3 and 8 characterized in that a helical central partition (9) is housed in the pipe (3), which optimizes the heat exchange between the gases hot that come out through the pipe (3) and the said pipe (3), and therefore improves the thermal radiation of the staircase (1). 10) Staircase (1) according to claim 9 characterized in that the polarization (9a) is the upper end of the spiral partition (9), which thus cooperates with the lower end of the next module.