CA2507015A1 - Adjustable modular support for modular staircases - Google Patents
Adjustable modular support for modular staircases Download PDFInfo
- Publication number
- CA2507015A1 CA2507015A1 CA002507015A CA2507015A CA2507015A1 CA 2507015 A1 CA2507015 A1 CA 2507015A1 CA 002507015 A CA002507015 A CA 002507015A CA 2507015 A CA2507015 A CA 2507015A CA 2507015 A1 CA2507015 A1 CA 2507015A1
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- CA
- Canada
- Prior art keywords
- sleeve
- sleeves
- arm
- support
- tread
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
- E04F11/022—Stairways; Layouts thereof characterised by the supporting structure
- E04F11/035—Stairways consisting of a plurality of assembled modular parts without further support
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
- E04F11/104—Treads
- E04F11/1041—Treads having means to adjust the height, the depth and/or the slope of the stair steps
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Steps, Ramps, And Handrails (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
- Ladders (AREA)
Abstract
The invention relates to an adjustable modular support for modular staircases of the type in which the tread plane of the stair is set and fastened on one or more coplanar flat portions defining a plane perpendicular to the axes of two staggered, parallel cylindrical sleeves of a suitable diameter for the successive couplings along vertical pivot axes, at which the rises and the progression of the flights are to be defined. The modular support is made up of to elements (A, B) connected to one another so as to allow upon installation, the manual adjustment of the distance between the centres of the aforementioned two sleeves (A1, B1) according to the selected tread.
Description
"Adjustable modular support for modular staircases"
*****
DESCRIPTION
Modular staircases with modular elements, initially devised to ease interventions for renovation and alteration of old buildings, are now also adopted for new constructions in anticipation of a subsequent different use of the spaces and the possible need to modify the arrangement and configuration of the flights. Indeed, said modular staircases, formed from a plurality of identical intermediate elements placed between two terminal elements made so as to allow them to be firmly fastened one to the start floor and the other to the arrival floor, allow the straight or curvilinear progression of the flight and also the rise of the steps to be arranged during the assembly of the modular elements, which takes place by successively coupling them at vertical pivot axes on which. each added element is to be oriented and spaced with respect to the last one already assembled.
For such a purpose modular elements currently in use have a horizontal flat portion which, arranged to allow the tread plane to be fastened ~on it through screws, is stably and rigidly connected to two vertical sleeves for the successive couplings.
However, in staircases formed with similar modular elements it is neither foreseen nor permitted to adjust the tread, which instead is indispensable to optimise the practicability of the staircase in relation'to the rise of the stairs. Indeed, the first rule in designing a~staircase is that of respecting the optimal relationship between rise (a) and tread (p) at whatever inclination of the flight. In this respect, the ratio 2a+p=62=65 cm is the one normally used, but there are also other formulae which correlate with the aforementioned quantities, and in any case it is not permitted to choose one of the two measurements independently of the other since this would be to the detriment of the ergonomics and practicability of a staircase.
Since the, optimisation of the practicability of a staircase through the correct relationship between rise and tread is considered indispensable also for so-called ~ modular staircases, the .present invention concerns particular series modular supports whose fastening in succession, according to'the predetermined rise and orientation, takes place subjvect to setting of the most suitable tread.
Indeed, these are supports which, each provided with two parallel staggered cylindrical sleeves of a suitable diameter for- the successive couplings along vertical pivot axes, at which the rises and the progression of, the flights are to be' defined, are made up of two mutually connected elements so as to allow, upon installation, the adjustment of the distance between the centres of the aforementioned two sleeves according to the chosen tread., All of this is~ more clearly described hereafter with the aid of eight , drawing tables where, for indicating and not limiting purposes,. there are represented:
- figs. 1 and 2 which show, isometrically, a three-quarters view and the longitudinal section of the subject modular support according to a first embodiment;
- figs. 3 and 4 which show a top view and the vertical section of the modular support according to figs. 1 and 2;
- figs . 5 .ana c~ ,wnlch show ~ a top view and the vertical section of a second embodiment of the subject modular support;
- figs. 7 and 8 which how a top view and the vertical section of a third embodiment of the subject modular support - figs. 9 and l0 which show a top view and the vertical section of a fourth embodiment of the subject modular support;
- figs. 11 and 12 which show a top view and the vertical section of a fifth embodiment of the subject modular support;
- figs. 13 and 14 which showa top view and the vertical section of a sixth embodiment of the subject modular support;
- figs. 15 and 16 which. snow a side view ana the bot~com view of a seventh embodiment of the subject modular support;
- figs. 17 and 18 which show a side view and the 'bottom view of an eighth embodiment of the ,subject modular support;
- fig. 19 which shows the vertical section of the assembly in succession of two modular supports according to figs. 3 and 4;
- fig. 20 which shows the vertical section of the assembly in uccession of two modular supports,according to figs. 7 and 8;
figs. 21, 22 and 23 which, through the longitudinal section of the;cylindrical sleeves of'~two consecutive supports, to be constrained to~one another with simple pressure screws, show as many,possible ways to avoid the possible slender thickness of said sleeves and in particular of the, outer sleeve.
From a first ,quick review of all of the examples shown, it can be seen that from the cylindrical sleeves of the two elements which make up. the modular support, special arms extend which, besides being shaped and; sized to allow them to-be insertedlongitudinally inside each other, are'also arranged to allow them to be constrained to one another after the adjustment of the distance between the centres of the aforementioned sleeves according to the chosen tread.
Such.arms, indeed, have a virtually rectangular section or at least such as to have at least two parallel faces which can be perpendicularly passed through by one or more screw locking means for obtaining the locking of the two support elements thanks also to the fact that two parallel faces of the outer arm,f those perpendicular to _the~ faces passed through by the one or more~screw locking means, both have a longitudinal middle interruption of such a'width and length E
as to allow the aforementioned outer arm the necessary elastic yield to clamp aid block the arm inserted in it.
Obviously, to allow the insertion of the screw locking means and also the telescopic adjustment of the distance between the centres of the cylindrical sleeves according~to the chosen tread, the two arms are suitably bored in the faces to be passed through with the screw locking means. In particular, as the attached drawings show, it is sufficient that near the end of the'outer arm there are two vertically aligned holes at which the .slot or the.holes made in the two faces of the inner arm parallel to the first ones are to be arranged, adjusting the tread.
Finally, the two arms to'be inserted longitudinally into each other, besides being perpendicular to the- respective cylindrical sleeves so that'the adjustment of the treads has no influence upon the rises, are'sized.and arranged so that the, inner arm, upon maximum insertion in the outer one, can -extend beyond the axis of the sleeve to which the outer arm is welded.
Analogously to what can.fbe found in the already known modular supports~for modular staircases; also the subject support, in particular the front element of all ~of. the possible embodiments thereof, has one or more flat, horizontal and co-planar portions, on which the tread plane of each stair is to be set and fastened, through screws inserted from below and through suitable holes.
Moreover, similarly to known embodiments, also for those made possible by the subject invention, it is foreseen that at the start and at the end of Ia flight there are supports which partially differ from the intermediate ones since they are suitable.to be fastened one to the floor and the other to the wall or to a ceiling.
For the understandable need for briefness, the attached drawings only show the intermediate modular~supports of the different example embodiments chosen -to illustrate the validity and versatility of, the present invention.
Before passing on to the description of.the invention with reference to the attached drawings it is worth~saying that, in.such drawings, each of the two elements which. make up a modular support is globally-indicated with a letter of the alphabet followed by= a reference numeral when it is necessary to indicate parts or details of the same element.
Examining the first example of a modular support-that can be made according to the invention, the one represented in figs. 1-2-3-4-19, it is noted that it is made up of two elements A and B each formed from a cylindrical sleeve (A1 and B1) and an arm (A2~and B2) which, perpendicular to the sleeve, has a virtually rectangular'section and is oriented so as to have two faces perpendicular, and two faces ,parallel, to the axis of the. aforementioned sleeve.
Said arms, sized~for the insertion of A2 in B2, are also arranged, in.the faces perpendicular to the axes of the respective sleeves A1 and B1, to allow them to be constrained to one another after the tele copic adjustment of the distance between the centres of the sleeves according to -the chosen tre_ad,.. with ..the. screw, ; locking.
member T passing through the aforementioned arms parallel to the sleeves.
Whilst the inner arm A2 is welded to the outside of the sleeve A1, the outer arm B2, besides having, in the two vertical faces, a'longit'udinal middle interruption B3 which allows ~it to elastically comply with the clamping member T
in locking the inner arm A2, penetrates into the sleeve B1 to which it is welded thus allowing, the space taken up being equal, a wider adjustment of the tread, and greater structural rigidity.
Finally, the.sleeve Al of the front element A, from the top of which the flat portion A3 on which the tread plane 2 is to be set and fastened is perpendicularly cantilevered, has two or more threaded holes A4 for the pressure screws V
with which.the outer sleeve Al and,inner sleeve B1 of two consecutive supports a-re to be constrained after adjustment of the selected rise and mutual orientation.
The support C-D of figs. 5 and 6 differs from the previous support: A-B only because the arms C2 ;and D2, which extend from the respective sleeves Cl and Dl, are arranged so that 20' the screw locking member T, in this case horizontal, acts upon' the faces parallel to the axes of , the aforementioned sleeves since the necessary. elastic yield _for the locking of the inner arm C2 is ensured by the longitudinal middle interruption D3 provided iri the two faces of the arm D2 perpendicular to the axes of the two sleeves and parallel to the locking member T.
Unlike the previous versions A-B .and C-D, the support E-F
of~figs. 7-8-20 has the outer arm E2 which penetrates into the sleeve El, from the top of which the flat portion E3 on . which the tread plane Z is, to_ be set, and fastened with screws is perpendicularly cantilevered.
Therefore, it is such an outer.arm E2 that has, in the two faces parallel ~ to the. .axi _ ..of _the sleeves, a longitudinal .
middle interruption E4 suitable for .allowing the necessary .7_ .elastic yield for the locking of the ,inner arm F2 by the locking member T, in the case in question passing through the aforementioned arms 'E and F parallel to the sleeves.
Moreover, it is the sleeve F1 of the rear element F that has the two or more threaded holes F3 for the pressure screws V with which the outer.sleeve F1 and inner sleeve E1 of two consecutive supports' .are constrained after adjustment of the selected Neigh;t and orientation.
The support G-H of figs. 9-10.differs from the previous support E-F only because the arms G2 and H2, which extend from the respective sleeves G1 and H1, are arranged so that the screw locking member T,~in this case horizontal, acts upon the faces parallel to the axes of the aforementioned sleeves'since tie necessary elastic yield for the locking of the inner arm H2 is ensured ~y the longitudinal middle ,.;
interruption G3 provided in the two faces 'of the arm G2 perpendicular to the ayes of th;~ two sleeves and parallel to the locking member T.
The support L-M of.figures 11-12 is comparable with the support ,A-B of figs: 1-2-3-4-19 from which it differs in that, whereas the. inner horizontal arm L2 is welded against the cylindrical surface of the vertical sleeve L1 from which it extends, the outer horizontal arm M2 is welded against the lower horizontal base of its sleeve Ml to offer , the space taken up being equal, a wider adjustment of the. tread and greater structural rigidity of the whole group., In the case in question, the shrew locking member T
~~is parallel to the axis of the sleeves and the longitudinal middle interruption M3 is provided in the two vertical walls of the outer arm M2, those parallel to the aforementioned~member T.
The support N-0 of figs. 13-14 differs from the previous support L-M only because the arms N2 and 02, which extend from the respective sleeves N1 and 01, are arranged so that the,screwslocking member T, in this casehorizontal, acts _$_ upon the faces parallel to the axes of the aforementioned sleeves since the necessary elastic yield for the locking of the inner arm N2 is ensured by the longitudinal middle interruption 03 arranged in the~two faces of the arm 02 perpendicular to the axes of the two sleeves and parallel to the locking member T-The support P-Q of figures l5-16 is similar to the support E-F of figs. 7-8-20 from. which ,it differs in that, whereas the inner horizontal arm Q2 is welded against the cylindrical surface of the vertical sleeve Q1 from which it extends, the outer horizontal arm P2 is welded against the upper horizontal base of its sleeve Pl to offer, the space take up being equal, a wider adjustment of the tread and greater structural rigidity of the whole group. In the case in question, the screw locking member T is parallel to the axis of the sleeves and the' longitudinal middle interruption P3 is provided in the two vertical walls of the outer arm P2~, those parallel to the aforementioned member T. In these same vertical walls the bored-inserts P4, constituting the flat'po'rtions on which the, tread plane Z is to~be set and fastened with screws, are cantilevered applied.
The support R-S of figs. 17-18 differs from the previous support P=Q only because' the' arms R2 and S2, which extend from the respective sleeves R1 and Sl, are arranged so that the screw locking member T, in this ,case horizontal, acts upon the faces parallel to the axes of the aforementioned sleeves since the necessary elastic yield for the locking of the inner arm ~S2 is ensured by the longitudinal middle interruption R3 provided in the two faces of the arm R2 which, perpendicular to .the axes of the two sleeves. and parallel to the locking member T,~ are the same ones from which the bored inserts R4, constituting the flat portions on which the - tread plane 2 is to be set and fastened with ; screws, .pr,o:j ect,.
_g_ Although the supports represented and described are all provided with two parallel cylindrical sleeves with which to carry out the successive couplings along vertical pivot axes, within the present invention it is also foreseen that, in the same~s~.pports and in others deriving from them, the two cylindrical, sleeves can be replaced by as many analogously sized and arranged prismatic tubes since their function is analogous.
Such supports are preferable, above all because they are 90 easier to be positioned in operation, when making staircases with rectilinear flights or staircases which have in plan view, between one stair and the other, an angle, that is equal or multiple with respect to that existing between one fac,e,.and the next of the prismatic, tube, in the case 1n question having a regular polygon section.
Relative to the mutual fastening of the cylindrical sleeves or of the prismatic tubes of two consecutive supports through two or more pressure screws,,when the thickness of the outer element allows it, said screws pass through it in simple~threaded holes that are suitably provided.
On the other hand, shou;.ld the thickness of the outer element, not be sufficient to ensure the grip of the screws in simple threaded holes, some possible remedies are represented in table 8.
According to the solution of fig. 21, where the pressure screws V must constrain to one another the outer element 1 and the inner element 2, said ~ screws are screwed into the threaded seats arranged ins'icle small collars 1'~ formed. by drawing in the outer element 1.
According to the solution of fig. 22, where the pressure screws V must constrain to one another the outer element 3 and the . inner element 5,~ '.'said screws . are screw,e.d ....into...
threaded bushes or nuts 4 held ~ in suitable bored seats 3' formed from the outer element.3 through drawing.
According to the solution of tig. ~~, the pressure screws V
are screwed into special threaded bushes 7 inserted in suitable holes of the outer element 6 and held inside it by small retention collars thereof, having the same thickness as the centring jacket 8 which, placed between the outer element 6 and the inner element 9, is bored at the small retention collars of the aforementioned threaded bushes 7.
*****
DESCRIPTION
Modular staircases with modular elements, initially devised to ease interventions for renovation and alteration of old buildings, are now also adopted for new constructions in anticipation of a subsequent different use of the spaces and the possible need to modify the arrangement and configuration of the flights. Indeed, said modular staircases, formed from a plurality of identical intermediate elements placed between two terminal elements made so as to allow them to be firmly fastened one to the start floor and the other to the arrival floor, allow the straight or curvilinear progression of the flight and also the rise of the steps to be arranged during the assembly of the modular elements, which takes place by successively coupling them at vertical pivot axes on which. each added element is to be oriented and spaced with respect to the last one already assembled.
For such a purpose modular elements currently in use have a horizontal flat portion which, arranged to allow the tread plane to be fastened ~on it through screws, is stably and rigidly connected to two vertical sleeves for the successive couplings.
However, in staircases formed with similar modular elements it is neither foreseen nor permitted to adjust the tread, which instead is indispensable to optimise the practicability of the staircase in relation'to the rise of the stairs. Indeed, the first rule in designing a~staircase is that of respecting the optimal relationship between rise (a) and tread (p) at whatever inclination of the flight. In this respect, the ratio 2a+p=62=65 cm is the one normally used, but there are also other formulae which correlate with the aforementioned quantities, and in any case it is not permitted to choose one of the two measurements independently of the other since this would be to the detriment of the ergonomics and practicability of a staircase.
Since the, optimisation of the practicability of a staircase through the correct relationship between rise and tread is considered indispensable also for so-called ~ modular staircases, the .present invention concerns particular series modular supports whose fastening in succession, according to'the predetermined rise and orientation, takes place subjvect to setting of the most suitable tread.
Indeed, these are supports which, each provided with two parallel staggered cylindrical sleeves of a suitable diameter for- the successive couplings along vertical pivot axes, at which the rises and the progression of, the flights are to be' defined, are made up of two mutually connected elements so as to allow, upon installation, the adjustment of the distance between the centres of the aforementioned two sleeves according to the chosen tread., All of this is~ more clearly described hereafter with the aid of eight , drawing tables where, for indicating and not limiting purposes,. there are represented:
- figs. 1 and 2 which show, isometrically, a three-quarters view and the longitudinal section of the subject modular support according to a first embodiment;
- figs. 3 and 4 which show a top view and the vertical section of the modular support according to figs. 1 and 2;
- figs . 5 .ana c~ ,wnlch show ~ a top view and the vertical section of a second embodiment of the subject modular support;
- figs. 7 and 8 which how a top view and the vertical section of a third embodiment of the subject modular support - figs. 9 and l0 which show a top view and the vertical section of a fourth embodiment of the subject modular support;
- figs. 11 and 12 which show a top view and the vertical section of a fifth embodiment of the subject modular support;
- figs. 13 and 14 which showa top view and the vertical section of a sixth embodiment of the subject modular support;
- figs. 15 and 16 which. snow a side view ana the bot~com view of a seventh embodiment of the subject modular support;
- figs. 17 and 18 which show a side view and the 'bottom view of an eighth embodiment of the ,subject modular support;
- fig. 19 which shows the vertical section of the assembly in succession of two modular supports according to figs. 3 and 4;
- fig. 20 which shows the vertical section of the assembly in uccession of two modular supports,according to figs. 7 and 8;
figs. 21, 22 and 23 which, through the longitudinal section of the;cylindrical sleeves of'~two consecutive supports, to be constrained to~one another with simple pressure screws, show as many,possible ways to avoid the possible slender thickness of said sleeves and in particular of the, outer sleeve.
From a first ,quick review of all of the examples shown, it can be seen that from the cylindrical sleeves of the two elements which make up. the modular support, special arms extend which, besides being shaped and; sized to allow them to-be insertedlongitudinally inside each other, are'also arranged to allow them to be constrained to one another after the adjustment of the distance between the centres of the aforementioned sleeves according to the chosen tread.
Such.arms, indeed, have a virtually rectangular section or at least such as to have at least two parallel faces which can be perpendicularly passed through by one or more screw locking means for obtaining the locking of the two support elements thanks also to the fact that two parallel faces of the outer arm,f those perpendicular to _the~ faces passed through by the one or more~screw locking means, both have a longitudinal middle interruption of such a'width and length E
as to allow the aforementioned outer arm the necessary elastic yield to clamp aid block the arm inserted in it.
Obviously, to allow the insertion of the screw locking means and also the telescopic adjustment of the distance between the centres of the cylindrical sleeves according~to the chosen tread, the two arms are suitably bored in the faces to be passed through with the screw locking means. In particular, as the attached drawings show, it is sufficient that near the end of the'outer arm there are two vertically aligned holes at which the .slot or the.holes made in the two faces of the inner arm parallel to the first ones are to be arranged, adjusting the tread.
Finally, the two arms to'be inserted longitudinally into each other, besides being perpendicular to the- respective cylindrical sleeves so that'the adjustment of the treads has no influence upon the rises, are'sized.and arranged so that the, inner arm, upon maximum insertion in the outer one, can -extend beyond the axis of the sleeve to which the outer arm is welded.
Analogously to what can.fbe found in the already known modular supports~for modular staircases; also the subject support, in particular the front element of all ~of. the possible embodiments thereof, has one or more flat, horizontal and co-planar portions, on which the tread plane of each stair is to be set and fastened, through screws inserted from below and through suitable holes.
Moreover, similarly to known embodiments, also for those made possible by the subject invention, it is foreseen that at the start and at the end of Ia flight there are supports which partially differ from the intermediate ones since they are suitable.to be fastened one to the floor and the other to the wall or to a ceiling.
For the understandable need for briefness, the attached drawings only show the intermediate modular~supports of the different example embodiments chosen -to illustrate the validity and versatility of, the present invention.
Before passing on to the description of.the invention with reference to the attached drawings it is worth~saying that, in.such drawings, each of the two elements which. make up a modular support is globally-indicated with a letter of the alphabet followed by= a reference numeral when it is necessary to indicate parts or details of the same element.
Examining the first example of a modular support-that can be made according to the invention, the one represented in figs. 1-2-3-4-19, it is noted that it is made up of two elements A and B each formed from a cylindrical sleeve (A1 and B1) and an arm (A2~and B2) which, perpendicular to the sleeve, has a virtually rectangular'section and is oriented so as to have two faces perpendicular, and two faces ,parallel, to the axis of the. aforementioned sleeve.
Said arms, sized~for the insertion of A2 in B2, are also arranged, in.the faces perpendicular to the axes of the respective sleeves A1 and B1, to allow them to be constrained to one another after the tele copic adjustment of the distance between the centres of the sleeves according to -the chosen tre_ad,.. with ..the. screw, ; locking.
member T passing through the aforementioned arms parallel to the sleeves.
Whilst the inner arm A2 is welded to the outside of the sleeve A1, the outer arm B2, besides having, in the two vertical faces, a'longit'udinal middle interruption B3 which allows ~it to elastically comply with the clamping member T
in locking the inner arm A2, penetrates into the sleeve B1 to which it is welded thus allowing, the space taken up being equal, a wider adjustment of the tread, and greater structural rigidity.
Finally, the.sleeve Al of the front element A, from the top of which the flat portion A3 on which the tread plane 2 is to be set and fastened is perpendicularly cantilevered, has two or more threaded holes A4 for the pressure screws V
with which.the outer sleeve Al and,inner sleeve B1 of two consecutive supports a-re to be constrained after adjustment of the selected rise and mutual orientation.
The support C-D of figs. 5 and 6 differs from the previous support: A-B only because the arms C2 ;and D2, which extend from the respective sleeves Cl and Dl, are arranged so that 20' the screw locking member T, in this case horizontal, acts upon' the faces parallel to the axes of , the aforementioned sleeves since the necessary. elastic yield _for the locking of the inner arm C2 is ensured by the longitudinal middle interruption D3 provided iri the two faces of the arm D2 perpendicular to the axes of the two sleeves and parallel to the locking member T.
Unlike the previous versions A-B .and C-D, the support E-F
of~figs. 7-8-20 has the outer arm E2 which penetrates into the sleeve El, from the top of which the flat portion E3 on . which the tread plane Z is, to_ be set, and fastened with screws is perpendicularly cantilevered.
Therefore, it is such an outer.arm E2 that has, in the two faces parallel ~ to the. .axi _ ..of _the sleeves, a longitudinal .
middle interruption E4 suitable for .allowing the necessary .7_ .elastic yield for the locking of the ,inner arm F2 by the locking member T, in the case in question passing through the aforementioned arms 'E and F parallel to the sleeves.
Moreover, it is the sleeve F1 of the rear element F that has the two or more threaded holes F3 for the pressure screws V with which the outer.sleeve F1 and inner sleeve E1 of two consecutive supports' .are constrained after adjustment of the selected Neigh;t and orientation.
The support G-H of figs. 9-10.differs from the previous support E-F only because the arms G2 and H2, which extend from the respective sleeves G1 and H1, are arranged so that the screw locking member T,~in this case horizontal, acts upon the faces parallel to the axes of the aforementioned sleeves'since tie necessary elastic yield for the locking of the inner arm H2 is ensured ~y the longitudinal middle ,.;
interruption G3 provided in the two faces 'of the arm G2 perpendicular to the ayes of th;~ two sleeves and parallel to the locking member T.
The support L-M of.figures 11-12 is comparable with the support ,A-B of figs: 1-2-3-4-19 from which it differs in that, whereas the. inner horizontal arm L2 is welded against the cylindrical surface of the vertical sleeve L1 from which it extends, the outer horizontal arm M2 is welded against the lower horizontal base of its sleeve Ml to offer , the space taken up being equal, a wider adjustment of the. tread and greater structural rigidity of the whole group., In the case in question, the shrew locking member T
~~is parallel to the axis of the sleeves and the longitudinal middle interruption M3 is provided in the two vertical walls of the outer arm M2, those parallel to the aforementioned~member T.
The support N-0 of figs. 13-14 differs from the previous support L-M only because the arms N2 and 02, which extend from the respective sleeves N1 and 01, are arranged so that the,screwslocking member T, in this casehorizontal, acts _$_ upon the faces parallel to the axes of the aforementioned sleeves since the necessary elastic yield for the locking of the inner arm N2 is ensured by the longitudinal middle interruption 03 arranged in the~two faces of the arm 02 perpendicular to the axes of the two sleeves and parallel to the locking member T-The support P-Q of figures l5-16 is similar to the support E-F of figs. 7-8-20 from. which ,it differs in that, whereas the inner horizontal arm Q2 is welded against the cylindrical surface of the vertical sleeve Q1 from which it extends, the outer horizontal arm P2 is welded against the upper horizontal base of its sleeve Pl to offer, the space take up being equal, a wider adjustment of the tread and greater structural rigidity of the whole group. In the case in question, the screw locking member T is parallel to the axis of the sleeves and the' longitudinal middle interruption P3 is provided in the two vertical walls of the outer arm P2~, those parallel to the aforementioned member T. In these same vertical walls the bored-inserts P4, constituting the flat'po'rtions on which the, tread plane Z is to~be set and fastened with screws, are cantilevered applied.
The support R-S of figs. 17-18 differs from the previous support P=Q only because' the' arms R2 and S2, which extend from the respective sleeves R1 and Sl, are arranged so that the screw locking member T, in this ,case horizontal, acts upon the faces parallel to the axes of the aforementioned sleeves since the necessary elastic yield for the locking of the inner arm ~S2 is ensured by the longitudinal middle interruption R3 provided in the two faces of the arm R2 which, perpendicular to .the axes of the two sleeves. and parallel to the locking member T,~ are the same ones from which the bored inserts R4, constituting the flat portions on which the - tread plane 2 is to be set and fastened with ; screws, .pr,o:j ect,.
_g_ Although the supports represented and described are all provided with two parallel cylindrical sleeves with which to carry out the successive couplings along vertical pivot axes, within the present invention it is also foreseen that, in the same~s~.pports and in others deriving from them, the two cylindrical, sleeves can be replaced by as many analogously sized and arranged prismatic tubes since their function is analogous.
Such supports are preferable, above all because they are 90 easier to be positioned in operation, when making staircases with rectilinear flights or staircases which have in plan view, between one stair and the other, an angle, that is equal or multiple with respect to that existing between one fac,e,.and the next of the prismatic, tube, in the case 1n question having a regular polygon section.
Relative to the mutual fastening of the cylindrical sleeves or of the prismatic tubes of two consecutive supports through two or more pressure screws,,when the thickness of the outer element allows it, said screws pass through it in simple~threaded holes that are suitably provided.
On the other hand, shou;.ld the thickness of the outer element, not be sufficient to ensure the grip of the screws in simple threaded holes, some possible remedies are represented in table 8.
According to the solution of fig. 21, where the pressure screws V must constrain to one another the outer element 1 and the inner element 2, said ~ screws are screwed into the threaded seats arranged ins'icle small collars 1'~ formed. by drawing in the outer element 1.
According to the solution of fig. 22, where the pressure screws V must constrain to one another the outer element 3 and the . inner element 5,~ '.'said screws . are screw,e.d ....into...
threaded bushes or nuts 4 held ~ in suitable bored seats 3' formed from the outer element.3 through drawing.
According to the solution of tig. ~~, the pressure screws V
are screwed into special threaded bushes 7 inserted in suitable holes of the outer element 6 and held inside it by small retention collars thereof, having the same thickness as the centring jacket 8 which, placed between the outer element 6 and the inner element 9, is bored at the small retention collars of the aforementioned threaded bushes 7.
Claims (22)
1. ADJUSTABLE MODULAR SUPPORT FOR MODULAR STAIRCASES, of the type in which the tread plane of the stair is set and fastened on one or more co-planar flat portions defining a plane perpendicular to the axes of two staggered, parallel cylindrical sleeves of a suitable diameter for the successive couplings along vertical pivot axes, at which the rises and the progression of the flights are to be defined, mainly characterised in that it is made up of two elements connected to one another so as to allow, upon installation, the manual adjustment of the distance between the centres of the aforementioned two sleeves according to the selected tread.
2. MODULAR SUPPORT, according to the previous claim, characterised in that from the cylindrical sleeves of the two elements which make up the modular support, special arms extend transversally, shaped and sized to allow them to be inserted longitudinally inside each other, as well as arranged so as to allow them to be locked together after the adjustment of the tread, or rather of the distance between the centres of the aforementioned sleeves.
3. MODULAR SUPPORT, according to the previous claims, characterised in that the arms longitudinally,inserted into each other for the telescopic adjustment of the tread are perpendicular to the cylindrical sleeves from which they extend, so that the adjustment of the treads has no influence upon the rises.
4. MODULAR SUPPORT, according to the previous claims, characterised in that the arms cantilevered from the two sleeves to be inserted longitudinally into each. other and to allow the telescopic adjustment of the tread have a virtually rectangular section or at least such as to allow them to be locked together with one or more screw locking means which pass through them parallel to those faces of the outer horizontal arm which, perpendicular to those passed through by the aforementioned locking means, both have a longitudinal middle interruption of such a width and length as to allow the aforementioned outer arm the necessary elastic yield to block the inner arm inserted in it.
5. MODULAR SUPPORT, according to the previous claims, characterised in that the two arms longitudinally inserted into each other for the telescopic adjustment of the tread are sized and arranged so that, in maximum insertion and minimum tread condition, the inner arm, welded to the outside of one of the sleeves, can reach horizontally beyond the vertical axis of the cylindrical sleeve into which the outer arm welded in it structurally penetrates.
6. MODULAR SUPPORT, according to claim 5, characterised in that in maximum mutual insertion condition of the two horizontal arms, the end of the inner arm extends inside the vertical cylindrical sleeve in which, for such a purpose, the outer arm is fastened to protrude from a suitable side opening.
7. MODULAR SUPPORT, according to claim 5, characterised in that the inner horizontal arm is welded against the cylindrical surface of the vertical sleeve from which it extends whereas the outer horizontal arm is welded against one of the two horizontal bases of its own sleeve to offer a wider adjustment of the tread and greater structural rigidity.
8. MODULAR SUPPORT, according to claims 1 to 6, characterised in that in a support according to figs. 3 and 4, made up of a front element A and a rear element B
connected to each other so as to allow the adjustment of the tread, the sleeve A1 and the arm A2 are intended the former to receive the sleeve B1 of the vertically adjacent support and the latter to be inserted in the arm B2 structurally reaching inside the sleeve B1 and having, in the two faces parallel to the axis of the sleeves, a longitudinal middle interruption B3 to elastically comply with the locking member T passing through the arms A2 and B2 perpendicular to them and parallel to the sleeves.
connected to each other so as to allow the adjustment of the tread, the sleeve A1 and the arm A2 are intended the former to receive the sleeve B1 of the vertically adjacent support and the latter to be inserted in the arm B2 structurally reaching inside the sleeve B1 and having, in the two faces parallel to the axis of the sleeves, a longitudinal middle interruption B3 to elastically comply with the locking member T passing through the arms A2 and B2 perpendicular to them and parallel to the sleeves.
9. MODULAR SUPPORT, according to claims 1 to 6, characterised in that in a support according to figs. 5 and 6, made up of a front element C and a rear element D
connected to each other so as to allow the adjustment of the tread, the sleeve C1 and the arm C2 are intended the former to receive the sleeve D1 of the vertically adjacent support and the latter to be inserted in the arm D2 structurally reaching inside the sleeve D1 and having, in the two faces perpendicular to the axis of the sleeves, a longitudinal middle interruption D3 to elastically comply with the locking member T passing through the arms C2 and D2 perpendicular to them and to the plane passing through the axes of the sleeves C1 and D1.
connected to each other so as to allow the adjustment of the tread, the sleeve C1 and the arm C2 are intended the former to receive the sleeve D1 of the vertically adjacent support and the latter to be inserted in the arm D2 structurally reaching inside the sleeve D1 and having, in the two faces perpendicular to the axis of the sleeves, a longitudinal middle interruption D3 to elastically comply with the locking member T passing through the arms C2 and D2 perpendicular to them and to the plane passing through the axes of the sleeves C1 and D1.
10. MODULAR SUPPORT, according to claims 1 to 6, characterised in that in a support according to figs. 7 and 8, made up of a front element E and a rear element F
connected to each other so as to allow the adjustment of the tread, the sleeve F1 and the arm F2 are intended the former to receive the sleeve E1 of the vertically adjacent support and the latter to be inserted in the arm E2 structurally reaching inside the sleeve E1 and having, in the two faces parallel to the axis of the sleeves, a longitudinal middle interruption E4 to elastically comply with the locking member T passing through the arms E2 and F2 perpendicular to them and parallel to the sleeves.
connected to each other so as to allow the adjustment of the tread, the sleeve F1 and the arm F2 are intended the former to receive the sleeve E1 of the vertically adjacent support and the latter to be inserted in the arm E2 structurally reaching inside the sleeve E1 and having, in the two faces parallel to the axis of the sleeves, a longitudinal middle interruption E4 to elastically comply with the locking member T passing through the arms E2 and F2 perpendicular to them and parallel to the sleeves.
11. MODULAR SUPPORT, according to claims 1 to 6, characterised in that in a support according to figs. 9 and 10, made up of a front element G and a rear element H connected to each other so as to allow the adjustment of the tread, the sleeve H1 and the arm H2 are intended the former to receive the sleeve G1 of the vertically adjacent support and the latter to be inserted in the arm G2 structurally reaching inside the sleeve G1 and having, in the two faces perpendicular to the axis of the sleeves, a longitudinal middle interruption G3 to elastically comply with the locking member T passing through the arms G2 and H2 perpendicular to them and to the plane passing through the axes of the sleeves G1 and H1.
12. MODULAR SUPPORT, according to claim 7, characterised in that in a support according to figs, 11 and 12, made up of a front element L and a rear element M connected to each other so as to allow the adjustment of the tread, the sleeve L1 and the arm L2 are intended the former to receive the sleeve M1 of the vertically adjacent support and the latter to be inserted in the arm M2 welded against the lower horizontal base of its sleeve M1 as well as provided, in the two faces parallel to the axis of the sleeves, with a longitudinal middle interruption M3 to elastically comply with the locking member T
passing through the arms L2 and M2 perpendicular to them and parallel to the sleeves.
passing through the arms L2 and M2 perpendicular to them and parallel to the sleeves.
13. MODULAR SUPPORT, according to claim 7, characterised in that in a support according to figs 13 and 14, made up of a front element N and a rear element O connected to each other so as to allow the adjustment of the tread, the sleeve N1 and the arm N2 are intended the former to receive the sleeve O1 of the vertically adjacent support and the latter to be inserted in the arm O2 welded against the lower horizontal base, of its sleeve O1 as well as provided, in the two faces perpendicular to the axis of the sleeves, with a longitudinal middle interruption O3 to elastically comply with the locking member T passing through the arms N2 and O2 perpendicular to them and to the plane passing through the axis of the sleeves N1 and O1.
14. MODULAR SUPPORT, according to claim 7, characterised in that in a support according to figs. 15 and 16, made up of a front element P and a rear element Q connected to each other so as to allow the adjustment of the tread, the sleeve Q1 and the arm Q2 are intended the former to receive the sleeve P1 of the vertically adjacent support and the latter to be inserted in the arm P2 which, completed by inserts P4 for the fastening of the tread plane of the stair, is welded against the upper horizontal base of its own sleeve P1 and also provided, in the two faces parallel to the axis of the sleeves, with a longitudinal middle interruption P3 to elastically comply with the locking member T passing through the arms P2 and Q2 perpendicular to them and parallel to the sleeves.
15. MODULAR SUPPORT, according to claim 7, characterised in that in a support according to figs. 17 and 18, made up of a front element R and a rear element S connected to each other so as to allow the adjustment of the tread, the sleeve S1 and the arm S2 are intended the former to receive the sleeve R1 of the vertically adjacent support and the latter to be inserted in the arm R2 which, completed by inserts R4 for the fastening of the tread plane of the stair, is welded against the upper horizontal base of its own sleeve R1 and also provided, in the two faces perpendicular to the axis of the sleeves, with a longitudinal middle interruption R3 to elastically comply with the locking member T passing through the arms R2 and S2 perpendicular to them and to the plane passing through the axes of the sleeves R1 and S1.
16. MODULAR SUPPORT, according to any one of all previous claims, characterised by the replacement of two cylindrical sleeves with as many analogously sized and arranged prismatic tubes, their function being analogous.
17. MODULAR SUPPORT, according to claim 16, characterised in that the two prismatic tubes have a regular polygon section when, besides staircases with rectilinear flights, it is necessary to form staircases which have in plan view, between one stair and the other, an angle equal to those of the aforementioned polygon or to a multiple thereof.
18. MODULAR SUPPORT, according to the previous claims, characterised in that the locking to each other of the cylindrical sleeves or of the prismatic tubes of two consecutive modular supports is accomplished with pressure screws inserted in the threaded through-bores of the outer element until they act against the inner one after adjustment of the rise and of the mutual orientation of the two supports when they are sleeves.
19. MODULAR SUPPORT, according to claim 18, characterised in that, should the thickness of the outer element not be sufficient to ensure the necessary grip of the screws, said screws, according to the version of fig. 21 where they constrain to one another the outer element 1 and the inner element 2, are screwed into threaded seats arranged inside small collars 1' formed by drawing in the outer element 1.
20. MODULAR SUPPORT, according to claim 18, characterised in that, should the thickness of the outer element not be sufficient to ensure the necessary grip of the screws, said screws, according to the version of fig. 22 where they constrain to one another the outer element 3 and the inner element 5, are screwed into threaded bushes or nuts 4 held in suitable bored seats 3' formed from the outer element 3 through drawing.
21. MODULAR SUPPORT, according to claim 18, characterised in that, should the thickness of the outer element not be sufficient to ensure the necessary grip of the screws, said screws, according to the version of fig.
23, are screwed into special threaded bushes 7 inserted in suitable holes of the outer element 6 and held inside it by their own small retention collars having virtually the same thickness as the centring jacket 8 which, placed between the outer element 6 and the inner element 9, is bored at the small retention collars of the aforementioned threaded bushes 7.
23, are screwed into special threaded bushes 7 inserted in suitable holes of the outer element 6 and held inside it by their own small retention collars having virtually the same thickness as the centring jacket 8 which, placed between the outer element 6 and the inner element 9, is bored at the small retention collars of the aforementioned threaded bushes 7.
22. ADJUSTABLE MODULAR SUPPORT FOR MODULAR STAIRCASES, according to all of the previous claims, substantially as illustrated and described for the specified purposes and independently of those changes or variants which can in practice be made without departing from the present patent scope.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITFO2002A000030 | 2002-12-23 | ||
| ITFO20020030 ITFO20020030A1 (en) | 2002-12-23 | 2002-12-23 | ADJUSTABLE MODULAR SUPPORT FOR MODULAR STAIRS. |
| PCT/IT2003/000762 WO2004057130A1 (en) | 2002-12-23 | 2003-11-21 | Adjustable modular support for modular staircases |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2507015A1 true CA2507015A1 (en) | 2004-07-08 |
Family
ID=32676838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002507015A Abandoned CA2507015A1 (en) | 2002-12-23 | 2003-11-21 | Adjustable modular support for modular staircases |
Country Status (5)
| Country | Link |
|---|---|
| CN (1) | CN100491666C (en) |
| AU (1) | AU2003290428A1 (en) |
| CA (1) | CA2507015A1 (en) |
| IT (1) | ITFO20020030A1 (en) |
| WO (1) | WO2004057130A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9290947B2 (en) | 2012-07-31 | 2016-03-22 | Diamond Stairs Inc. | Stair systems and wall assemblies comprising same |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2210994A1 (en) * | 2009-01-21 | 2010-07-28 | Pro-Cord S.p.A. | Modular stairway |
| CN104533274B (en) * | 2014-12-29 | 2016-08-31 | 徐毓艺 | The upright fire-fighting rack of concatenation type |
| CN106182068A (en) * | 2016-07-28 | 2016-12-07 | 苏州优银机械有限公司 | A kind of industry cantilever connects assembly |
| CN106217404A (en) * | 2016-07-28 | 2016-12-14 | 苏州优银机械有限公司 | A kind of suspending arm rotary connects assembly |
| CN106217408A (en) * | 2016-07-28 | 2016-12-14 | 苏州优银机械有限公司 | A kind of industry cantilever fixation kit |
| CN106182069A (en) * | 2016-07-28 | 2016-12-07 | 苏州优银机械有限公司 | A kind of industry cantilevered eccentric locating, and connecting components |
| AT525127B1 (en) * | 2021-05-17 | 2023-02-15 | Minka Holz Und Metallverarbeitungs Gmbh | Steps, staircase or the like, which is composed or can be composed of individual step elements to be connected to one another via plug-in connections |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1683495A1 (en) * | 1967-08-19 | 1971-04-08 | Spreng & Co Vormals Friedrich | Staircase with step bodies resting on supporting scaffolding on both sides |
| AT335159B (en) * | 1974-10-30 | 1977-02-25 | Scheffauer Anton | CANTILEVER STAIRS THAT CAN BE ASSEMBLED FROM PRE-FABRICATED STAIR PARTS IN ANY SHAPE AND WITH DIFFERENT INCLINE AND TREAD WIDTH |
| CA2007032C (en) * | 1989-01-27 | 1997-09-30 | Keiichiro Yamazaki | Takedown staircase |
| US5134820A (en) * | 1990-10-16 | 1992-08-04 | Liu Ing Nan | Adjustable built-up stair |
| FR2731735B1 (en) * | 1995-03-15 | 1997-05-23 | Morales Georges Francois | DEVICE FOR MAKING STAIRS OF DIFFERENT MARKETS AND HEIGHTS |
-
2002
- 2002-12-23 IT ITFO20020030 patent/ITFO20020030A1/en unknown
-
2003
- 2003-11-21 AU AU2003290428A patent/AU2003290428A1/en not_active Abandoned
- 2003-11-21 CN CN 200380100743 patent/CN100491666C/en not_active Expired - Fee Related
- 2003-11-21 WO PCT/IT2003/000762 patent/WO2004057130A1/en not_active Application Discontinuation
- 2003-11-21 CA CA002507015A patent/CA2507015A1/en not_active Abandoned
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9290947B2 (en) | 2012-07-31 | 2016-03-22 | Diamond Stairs Inc. | Stair systems and wall assemblies comprising same |
| US9683372B2 (en) | 2012-07-31 | 2017-06-20 | Diamond Stairs Inc. | Stair systems and wall assemblies comprising same |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2003290428A1 (en) | 2004-07-14 |
| CN100491666C (en) | 2009-05-27 |
| ITFO20020030A1 (en) | 2004-06-24 |
| WO2004057130A1 (en) | 2004-07-08 |
| CN1694993A (en) | 2005-11-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |