OBJECT OF THE INVENTION
[0001] As stated in the title of this descriptive specification, the following invention
relates to a structural step intended for the formation of stairs which substantially
improves the existing steps, achieving advantages for their handling, both in the
manufacturing process and during transport and assembly.
[0002] Improvements are also achieved in the adhesion to the construction base material,
essentially concrete, used to create the stairs, as well as speed in the construction
of the stairs with less weight, furthermore increasing the level of general safety
of the work on account of rapidly eliminating the ramps prior to construction of the
stairs.
BACKGROUND OF THE INVENTION
[0003] Stairs are currently known among which can be highlighted those that are of the type
such as are to be found in Utility Model No.
160356, relating to a piece for the formation of steps where a modular step is protected
with a finish for the support face formed by two flat surfaces, which does not permit
its stable stacking for its storage both during manufacture and also during transport.
DESCRIPTION OF THE INVENTION
[0004] With the aim of achieving the objectives and avoiding the drawbacks mentioned in
the above sections, the invention proposes a structural step which in principle presents
a profile with a triangle rectangle shape, the hypotenuse of which corresponds to
the major face for support and attachment by means of mortar or other materials, on
the inclined plane of a ramp for the formation of a stair. So, the hypotenuse corresponds
to the inclined face, while the sides or cathetuses of that profile in the form of
a triangle rectangle will correspond to the vertical and horizontal faces of the step.
[0005] Starting from this premise, the structural step is characterized in that the said
support face includes male and/or female elements which are complemented with the
male and/or female elements of the support face of another paired structural step
in order to permit the stacking of pairs of steps via their support faces in contact.
[0006] The tongue and grooved coupling of the male and/or female elements between pairs
of steps permits a completely stable stacking which will facilitate the ordered stacking
of various layers of pairs of steps, unlike in conventional steps of this type in
which this characteristic stacking is not possible.
[0007] In particular, the male and female elements comprise a curved profile.
[0008] In another embodiment, the male and female elements comprise an angular profile,
whose faces are parallel to the major and minor sides of the profile in the form of
a triangle rectangle of the structural steps of the invention.
[0009] The vertical and horizontal faces of the structural step include grooves for achieving
a better deposition of the fastening material and also for achieving a better fastening
of the floor tiles attached to those faces.
[0010] Below, in order to facilitate a better understanding of this descriptive specification
and forming an integral part thereof, some figures are attached in which the object
of the invention has been represented by way of illustration and non-limiting.
BRIEF DESCRIPTION OF THE DRAWINGS
[0011]
Figure 1.- Shows a profile view of two structural steps, the object of the invention. They are
located facing each other via their major support faces.
Figure 2.- Shows another view similar to the above.
Figure 3.- Shows a view of the stacking of the steps of the invention.
Figure 4.- Shows a view of a section of stair with the steps of the invention.
DESCRIPTION OF THE PREFERRED FORM OF EMBODIMENT
[0012] Considering the numbering adopted in the figures, the structural step is defined
starting from a body with an exterior profile in the form of a triangle rectangle,
whose hypotenuse corresponds to the major inclined support face 1, the major side
or cathetus with the horizontal face 2 and the minor side or cathetus with the front
or vertical face 3.
[0013] The major face 1 of a structural step includes ribs 4, 4' and/or channels 5, 5',
which run along the entire width of the step and are complemented with other ribs
and/or channels of another step in order to permit the stacking of pairs of steps
with their major faces in contact, in such a way that by joining two steps via their
major faces we will obtain a prismatic block array formed by two pieces that permit
a stable stacking of numerous structural steps, both during manufacture and during
transport, thereby making maximum use of the available space.
[0014] In one embodiment, the ribs 4 and channels 5 of the major faces of the steps present
a curved structure. In this embodiment, at least one of the two faces in contact during
the stacking includes some curved slots 10 in the straight sections which improve
the stacking even more if possible.
[0015] In another embodiment, the ribs 4' and channels 5' of the major faces 1 of the respective
steps present an angular structure, whose arms are parallel to the horizontal 2 and
vertical 3 faces of the steps, with the two arms being joined together in turn by
means of a rounded vertex 6. The slots 10 can also be incorporated into this embodiment.
[0016] The step is formed internally by a crisscrossing of partitions 7 though it could
have any other structure, and it could even be solid.
[0017] Moreover, the vertices of the step are truncated or finished with a rounded shape.
[0018] The horizontal 2 and vertical 3 faces of the structural step of the invention incorporate
grooves 8 and 9 which facilitate the gripping of mortar in order to then fasten the
floor tiles, and also facilitating the gripping of the latter.
1. Structural step, which, comprising a general configuration with an external outline
profile in a triangle-rectangle shape wherein the hypotenuse coincides with the major
support face, the major cathetus with the horizontal face and the minor cathetus with
the vertical face, is characterized in that the major support face (1) of a step includes fastening elements complemented during
stacking by other fastening elements of the major support face (1) of another paired
step, thus ensuring the stacking of pairs of steps that are in contact stably through
their major faces forming a prismatic block predetermined by those two pairs of steps.
2. Structural step, according to claim 1, characterized in that the fastening elements comprise male elements and female elements which fit into
each other during the stacking.
3. Structural step, according to claim 2, characterized in that the male and female elements respectively comprise ribs and channels running along
the entire width of the structural steps.
4. Structural step, according to claim 3, characterized in that the ribs (4) and channels (5) present a curved profile.
5. Structural step, according to claim 3, characterized in that the ribs (4') and channels (5') present an angular profile, whose arms are parallel
to the horizontal (2) and vertical (3) faces of the steps.
6. Structural step, according to claim 5, characterized in that the vertices where the arms of the ribs (4') and channels (5') join together present
a rounded profile (6).
7. Structural step, according to any of the above claims, characterized in that the major support face (1) is determined by a single plane interrupted at least by
the fastening elements.
8. Structural step, according to any of the above claims, characterized in that at least some of the major support faces (1) incorporate slots (10) located in the
straight sections limited by two consecutive fastening elements.