EP2339093A1 - Guide for making pillars or columns, and method for making columns and pillars of bricks, stones or other building blocks - Google Patents
Guide for making pillars or columns, and method for making columns and pillars of bricks, stones or other building blocks Download PDFInfo
- Publication number
- EP2339093A1 EP2339093A1 EP10179185A EP10179185A EP2339093A1 EP 2339093 A1 EP2339093 A1 EP 2339093A1 EP 10179185 A EP10179185 A EP 10179185A EP 10179185 A EP10179185 A EP 10179185A EP 2339093 A1 EP2339093 A1 EP 2339093A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- slider
- template
- pillar
- column
- guideway
- 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
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
- E04G21/18—Adjusting tools; Templates
- E04G21/1841—Means for positioning building parts or elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
- E04G21/18—Adjusting tools; Templates
- E04G21/1808—Holders for bricklayers' lines, bricklayers' bars; Sloping braces
Definitions
- the present invention relates to an apparatus and a process for constructing columns or pillars in brick, stone or other buildi ng blocks, in particular columns or pillars in facing brickwork or stonework.
- brick pillars of the type shown in Figure 1 are constructed by bricklayers controlling the placing and alignment of the bricks with just the aid of a spirit level, plumb line, rules and, if necessary (especially in the case of circular-section columns), a series of vertical lines (indicatively from three to six) fixed with nails to the floor and ceiling, if present, or to another overhanging structure, substantially creating a "template of plumb lines".
- a lot of time and highly skilled labour are necessary to construct columns and pillars using these techniques.
- Auxiliary apparatuses have been conceived to reduce the above-indicated construction times, whilst at the same time permitting a person with little experience to construct well-made brick pillars.
- a first auxiliary apparatus for constructing brick chimney caps is described in document NL1020353 and comprises:
- a first object of the present invention is to provide an apparatus and a process that permit quicker and easier construction of pillars and columns in brick, stones or other building blocks and that, all things being equal, reduce construction times and the need for skilled labour, or increase the dimensional precision of the column or pillar obtained.
- a second object of the present invention is to provide an apparatus and a process that are improvements with respect to known apparatuses, with particular reference to the laboriousness of use, the speed and precision of installation and positioning of the apparatus itself.
- the perimeter of the first hollow seat has a shape chosen from the following: rectangle, square, circle, ellipse, ovoid, rhomboid, or parallelogram.
- the fixed frame comprises at least two guideways and, if necessary, not more than two guideways.
- the fixed frame comprises at least two guideways and a connection head that connects the ends or upper portions of the guideways during use, substantially fixing the relative position of one end or upper portion with respect to the other.
- the at least one guideway extends for a length equal to at least the height of the column or pillar to be made.
- at least one of the base or the connection head defines:
- FIG. 1 A first special embodiment of the invention.
- the template according to this embodiment of the invention indicated as a whole by reference numeral 1, comprises:
- the fixed frame can comprise a cross-beam or, more in general, a connection head 11 that connects the top ends of the guideways 5 in a substantially rigid manner.
- the load-bearing elements of a column or pillar are not just bricks M or stones, but also comprise an inner core AI of concrete (substantially formed by a pillar of smaller section) that is subsequently faced with bricks or stones ( Figure 1 ). Therefore, to allow the template and in particular the first hollow seat 9 to be inserted around the core AI at the beginning of the work, both the base 3 and the first hollow seat 9 as well as the cross-beam or connection head 11 each form an open frame or, in any case, advantageously have an open perimeter, as shown in Figure 2 .
- Reference numerals 17 and 19 respectively indicate the opening of the base 3 and the first hollow seat 9, while reference numeral 16 in Figure 5 indicates the second hollow seat formed by the base 3: the core AI or the finished column or pillar can pass through the openings 17 and 19 by moving the base 3 and the slider 7 perpendicular to or in any case transversely to the axis of the core AI, allowing the template 1 to be positioned around the core AI before facing it with bricks and to take the template 1 off of the finished column or pillar when, for example, the pillar or column reaches an already constructed ceiling.
- the base 3 is substantially U-shaped.
- the frame 70 of the slider 7 that defines the first hollow seat 9 lies substantially on a plane perpendicular, or in any case transversal, to the axis of the column or pillar to be made ( Figures 2-4 ).
- the template 1' can be equipped with a counterweight 100 that partially compensates the weight of the slider 7; the counterweight 100 can be mechanically connected to the slider 7 by means, for example, of a rope, cable, chain, belt or other return element 102.
- the rope or chain 102 lifts the counterweight 100 when the slider 7 is lowered by the user and, vice versa, lowers the counterweight 100 when the slider 7 is raised, so as to make moving the slider 7 less laborious.
- the counterweight system can make utilization of the template 1, 1' and 1" much less laborious for an operator, especially after several hours of work, and much more rapid, significantly increasing the production rate.
- the guideway or guideways 5 and 5' are internally hollow and the counterweight 100 slides inside one of them, so as to be less in the way.
- the weight of the counterweight 100 is preferably between half and twice the weight of the slider 7'. More preferably, the weight of the counterweight 100 is between three and five fourths of the weight of the slider 7'. Even more preferably, the weight of the counterweight 100 is between 0.9 and 1.1 times the weight of the slider 7'. For example, the counterweight 100 could have a weight of approximately 4-5 kg.
- each guide 5 can be part of a respective upright 52 that, as shown for example in Figure 9 , could also comprise an adjustable foot 54 that supports and extends the same upright 52.
- each guide 5 (as optionally each adjustable foot 54) can be advantageously obtained from common metal section or tubular bar, preferably with closed cross-sections; the optional adjustable foot preferably slides inside the metal section, forming a telescopic subassembly.
- the slider 7 can slide in direct contact with the outer surface of the metal sections of the guides 5, but preferably without sliding directly in contact with the adjustable feet 54, so as to reduce play between slider 7 and guides 5 and create more geometrically precise columns or pillars.
- Each adjustable foot 54 preferably has a height HP equal to or greater than 0.3 times the height HG of the relevant guideway 5.
- Each guide 5 preferably has a height HG of between 1.5 metres and 4 metres, and more preferably between 2 metres and 3 metres.
- Each adjustable foot 54 preferably has a height HP of between 0.7 metres and 1.5 metres.
- each guideway 5 comprises a single monolithic piece of metal section having the above-mentioned length HG.
- This metal section of the guide 5 has closed cross-sections for preferably at least 70% of its length HG, more preferably for 80% of its length HG, and even more preferably for 90% of length HG.
- the height HG of each guideway 5 is equal to at least half the height of the pillar or column in facing brickwork to be made.
- the height HG of each guide 5 is equal to at least two thirds of the height of the pillar or column in facing brickwork to be made.
- the above-indicated expedients permit the simplification, weight reduction and increased resistance of the guide 5, 5'and 5" and the template 1, 1' and 1".
- the template 1, 1' and 1" is provided with one or more struts or props 13 and 13" that support and stabilize the upright or uprights 52, these being fixed (for example, via screws, pins or hinges 130) at least (and preferably exclusively) to the upper half of the upright or uprights 52.
- the strut(s) or prop(s) 13 and 13" are fixed to the top quarter of the upright or uprights 52. Even more preferably, as shown in Figures 2 , 3 and 9 , the strut(s) or prop(s) 13 and 13" are fixed to the top end of the guide or guideways 5.
- the bottoms of struts or props 13 can be stood on (and preferably fixed by nails or screw anchors to) the floor ( Figure 3 ). This means that during normal use, the strut(s) or prop(s) 13 and 13" are fixed to the upright 52 or to the guide 5 at a height, with respect to the floor, respectively equal or greater than HG/2 or HG/4.
- the base 3 and the head 11 of the template could be nailed or screw-anchored directly to the floor, ceiling, or other parts of the construction in which the template is used.
- the template 1 is positioned so as to make the perimeters of the first hollow seat 9 and the cross-sections of the column or pillar to be made substantially correspond to each other, and in a way such that the guideways 5 extend substantially parallel to the axis of the column or pillar to be made.
- work begins by arranging the first layer of bricks inside the first hollow seat 9, placing the bricks against the perimeter of the first hollow seat 9.
- the slider 7 is raised by a predetermined step, by making it slide along the guides 5 and locking it again at the appropriate height (with an opportune locking system 15, such as a screw that presses the head against the guide 5 for example), and then the second layer of bricks is laid in a similar manner, and then the successive layers until the column or pillar is completed ( Figure 3 ); afterwards, the template 1 can be removed.
- an opportune locking system 15 such as a screw that presses the head against the guide 5 for example
- the template according to the invention allows a square-section brick pillar 50 X 50 cm each side and 2.7-3 m tall to be built in approximately 2-4 hours, with a reduction of around 50% with respect to construction techniques using levels, plumb lines and rules.
- a template according to the invention also allows aligning and generally arranging bricks and stones with considerable precision and excellent aesthetic results, even if used by not particularly skilled bricklayers.
- the template 1 can be produced using low-cost technologies and the not particularly close tolerances of metal structural work, even if a greater coupling precision between the slider 7 and the guides 5 improves the geometrical precision of the columns and pillars that are constructed.
- the guides 5 could be obtained from normal metal sections and the slider 7 could be a structure of metal straps or welded metal sections.
- the fixed frame can be advantageously equipped with just two guideways 5: this number is a good compromise that renders the slider 7 sufficiently sturdy and the mounting and removal of the template before and after use sufficiently rapid.
- a template 1 with two guides 5 can be mounted and positioned in approximately ten-twenty minutes, and taken down in approximately ten minutes.
- the number of guideways 5 and 5' could also be different from two, without leaving the scope of the invention.
- only one guideway is present; this reduces the mounting times, weight and cost of the template, as well as the sliding or rolling friction between the guideways 5 and 5' and the slider 7, to a minimum.
- the fixed frame is advantageously made so that it can be reversibly disassembled and reassembled; in particular, the two guideways 5 can be reversibly dismantled from the base 3 and the connection head 11.
- a set of templates 7 can be advantageously used, each one defining a first hollow seat 9 of different shape and dimensions, but all having the same centre distance L between the slide seats 72 of the guides 5 ( Figure 5 ).
- the hollow seat could have a perimeter that is not just square or rectangular, but also circular, elliptical, ovoidal or rhomboidal, for constructing columns or pillars with cross-sections of the corresponding shape.
- the first hollow seat 9 reproduces the negative outer shape of approximately 80% of the pillar's square cross-section, and this reproduces approximately 80% of the pillar's perimeter.
- the slider's hollow seat could reproduce larger (the entire perimeter for example) or smaller portions than 80% of the section of the pillar or column to be made, but preferably at least half: this fraction can be particularly advantageous for constructing pillars with a circular or elliptical section.
- each guideway 5 and 5' has a polygonal outer cross-section, preferably square or rhomboid
- the slider 7 comprises one or more slider wheels 74 arranged to engage with and run on a guide 5 and 5' so as to reduce play, noise and friction between slider 7 and guides 5 and 5'.
- the slider wheels 74 can have concave sides presenting, for example, a perimetric groove, preferably with a V-section, which extends around the entire circumference of the side of each wheel.
- These concave sides advantageously engage and roll on at least one edge of the guide 5', so as to prevent or further limit undesired rotation of the slider 7 around the axis of the guides 5': this expedient is particularly advantageous when, as in Figures 6 , 7 , 9 and 10 , the template according to the invention is equipped with just one guideway 5, 5' and 5".
- the slider 7 is equipped with at least three wheels 74, not coaxial with each other, of which at least one engages with an edge of the guide 5' and at least one other engages with the opposite edge with respect to the axis of the guide 5' itself: this expedient also contributes to generally reducing play between slider 7 and guides 5', and undesired rotation of the slider 7 both around the axis of the guide 5 and 5' or guides 5' and around axes perpendicular (or more in general, transversal) to the guide 5', thereby improving sliding.
- the slider 7 could also comprise a slider shell 76, in sheet metal for example, on which the concave-sided wheels 74 are fixed such that they are able to rotate.
- the slider 7 could be equipped with a step reference 106, arranged to move the slider 7 a precise distance with respect to one of the already laid layers of bricks or stones of the column or pillar.
- the step reference 106 could be an L-bracket with a pointed end ( Figure 6 ), or a transparent element with one or more reference lines traced on it.
- the step reference 106 extends vertically, upwards or downwards, from the frame 70 of the slider.
- the L-bracket 106 could be used, for example, by aligning the horizontal tip on the layer of mortar (also known as "coursing joint" in technical jargon) that horizontally separates the last and the penultimate layer of bricks or building blocks already laid.
- the step reference 106 allows the slider 5 to be repositioned more rapidly than, for example, using a graduated scale applied along one of the guides 5.
- the sliding coupling between slider 7 and guides 5 and 5' can be accomplished by means of suitable friction bearings (for example, in low-friction materials such as Teflon, nylon or self-lubricating materials) or rolling-contact bearings (for example, ball or roller bearings), or even a rack-and-pinion or nut and worm coupling.
- suitable friction bearings for example, in low-friction materials such as Teflon, nylon or self-lubricating materials
- rolling-contact bearings for example, ball or roller bearings
- the template can optionally be equipped with a motor or an actuator arranged to operate the slider 7 and 7'.
- the frame 70' of the slider can be advantageously formed by two half-frames 70A and 70B, each of which is fixed at one end (by screws for example) to the rest of the slider 7', and the other end to the other half-frame.
- the template 1' can be removed from the finished pillar by disassembling at least one of the two half-frames 70A and 70B.
- the frame 70" of the slider could have one or more telescopic sides so as to allow the length of the sides themselves to be reversibly and rapidly adjusted; in this way, it is possible to use a single frame 70" to make columns or pillars having cross-sections of different shapes and dimensions, for example, square or rectangular.
- the frame 70" of the slider 7" could comprise a plurality of tubular sections 70C and a plurality of angle brackets 70D.
- the angle brackets 70D are substantially rigid and their ends are slidingly inserted at the hollow ends of the tubular sections 70C.
- the lengths of the various sides can be adjusted, for example, by locking the angle brackets 70D with respect to the sections 70C by means of screw knobs 70E.
- Each screw knob 70E has a male thread at one end that, when screwed into the wall of the associated tubular section 70C, presses the end of the angle bracket 70D against the inner wall of the section 70C itself.
- the tubular sections 70C and the angle brackets 70D could have a series of through holes and the length of the various sides of the frame 70" could be adjusted by inserting a locking pin inside two coaxial holes, one on the tubular section 70C and the other on the angle bracket 70D.
- the frame 70" could be fixed to the guideway 5' by an adjustable clamping system 70F that allows the tubular section 70C closest to the guide 5' and transversal to it (arrow Fl) to be reversibly moved towards and away from the guideway 5' itself.
- the adjustable clamping system 70F could comprise, for example, a slot 70G and a locking screw 70H that, when screwed into the slider 7", locks the sliding of the plate on which the slot 70G is obtained.
- the adjustable clamping system 70F allows brick bases or capitals CP to be made at the top of pillars without disassembling or substituting the adjustable frame 70" after the intermediate section of the pillar TP has been made ( Figure 8 ).
- the struts 13" needed to support the template itself and make it stable can even be just two, one or none.
- the struts 13" are arranged so as to substantially form, together with the guide 5", a pyramid or tetrahedron, so as to create a considerably rigid and stable structure. If necessary, for example, due to the bulk of surrounding objects, the struts 13" could be mounted aligned and coplanar with the single guideway 5".
Abstract
The template (1) for constructing pillars or columns (1) according to the invention comprises A) a fixed frame, in turn comprising a guideway (5), and B) a slider (7) sliding along the guideway and defining a first hollow seat (9) that substantially reproduces the full-scale, negative outer shape of the cross-section of the column or pillar to be made. During construction, the bricks are arranged by placing them against the edges of the hollow seat (9), while the slider (7) is gradually moves upwards as the various layers of bricks are laid. The template (1) also comprises a counterweight (100) connected to the at least one slider, so as to facilitate the user in manually raising and lowering the at least one slider and make these operations less laborious.
Description
- The present invention relates to an apparatus and a process for constructing columns or pillars in brick, stone or other buildi ng blocks, in particular columns or pillars in facing brickwork or stonework.
- Currently, brick pillars of the type shown in
Figure 1 are constructed by bricklayers controlling the placing and alignment of the bricks with just the aid of a spirit level, plumb line, rules and, if necessary (especially in the case of circular-section columns), a series of vertical lines (indicatively from three to six) fixed with nails to the floor and ceiling, if present, or to another overhanging structure, substantially creating a "template of plumb lines". A lot of time and highly skilled labour are necessary to construct columns and pillars using these techniques. To construct a square-section brick pillar of 50 cm each side and 3 m tall, approximately four to eight man-hours are necessary; just positioning the above-described "template of plumb lines" requires a person to work approximately one hour. - Auxiliary apparatuses have been conceived to reduce the above-indicated construction times, whilst at the same time permitting a person with little experience to construct well-made brick pillars. A first auxiliary apparatus for constructing brick chimney caps is described in document
NL1020353 - a mobile profile or mask 8 (e.g. see
Figure 1 ofNL1020353 - a
guide 3 along which the mobile profile or mask 8 can be moved. - Some of the drawbacks of the apparatus in
NL1020353 US5915809 : raising the mobile profile or mask 50 of this second apparatus is quicker and easier because the mobile profile or mask 50 can slide uninterruptedly along the guideway 18 (e.g. seeFigures 1 and 4 ofUS5915809 ). Nevertheless, the author of the present invention considers that the repeated raising of the mobile profile or mask 50 during construction of the pillar is in any case relatively laborious for the user.
With apparatusUS5915809 , in order for the vertical upright comprising the guide 18 to be spatially positioned with precision, as required for constructing a column with the right inclination, it must be nailed or screw anchored to a pre-existing portion of the building by means of bracket 96 and 98. When this portion of building does not exist or is not made with sufficient precision, spatially positioning and orienting the guide 18 with the required precision is not possible or is extremely laborious and time consuming.
Again, the author of present invention also considers the mechanical embodiment of the apparatus inUS5915809 relatively complicated and therefore expensive. - A first object of the present invention is to provide an apparatus and a process that permit quicker and easier construction of pillars and columns in brick, stones or other building blocks and that, all things being equal, reduce construction times and the need for skilled labour, or increase the dimensional precision of the column or pillar obtained.
- A second object of the present invention is to provide an apparatus and a process that are improvements with respect to known apparatuses, with particular reference to the laboriousness of use, the speed and precision of installation and positioning of the apparatus itself.
- These objects are achieved, according to a first aspect of the present invention, with a template for constructing pillars or columns having characteristics according to
claim 1.
In a second aspect of the invention, these objects are achieved with a template for constructing pillars or columns having characteristics according to claim 2. In a third aspect of the present invention, these objects are achieved with a process for constructing columns or pillars in brick, stone or other building blocks having characteristics according toclaim 15.
In one special embodiment of the template according to the invention, the perimeter of the first hollow seat has a shape chosen from the following: rectangle, square, circle, ellipse, ovoid, rhomboid, or parallelogram.
In one special embodiment of the template according to the invention, the fixed frame comprises at least two guideways and, if necessary, not more than two guideways.
In one special embodiment of the template according to the invention, the fixed frame comprises at least two guideways and a connection head that connects the ends or upper portions of the guideways during use, substantially fixing the relative position of one end or upper portion with respect to the other.
In one special embodiment of the template according to the invention, the at least one guideway extends for a length equal to at least the height of the column or pillar to be made.
In one special embodiment of the template according to the invention, at least one of the base or the connection head defines: - a second hollow seat arranged to accept the entire cross-section of the column or pillar to be made along at least one section of the column or pillar itself, and
- an opening through which the completed pillar or column or its inner core can pass, by moving the base and/or the connection head transversely to the axis of the pillar, column or core.
- at least one wheel, arranged to roll along the at least one guideway,
- at least one friction bearing,
- at least one rolling-contact bearing, for example ball or roller bearings,
- at least one bearing in Teflon, polyamide or self-lubricating materials,
- a rack-and-pinion system, and
- a nut and worm system.
- The advantages that can be achieved with the present invention shall become clearer, to an expert in the field, from the following detailed description of a non-limitative example of a special embodiment, illustrated with reference to the following schematic figures.
-
-
Figure 1 shows a load-bearing brick pillar, of known type, -
Figure 2 shows a perspective view of a template for constructing pillars or columns according to a first special embodiment of the invention, -
Figure 3 shows, in a perspective view, a moment in the construction of a pillar faced with face bricks using the template inFigure 2 , -
Figure 4 shows a top view of the slider of the template inFigure 2 , -
Figure 5 shows an exploded perspective view of the template inFigure 2 , -
Figure 6 shows, in a perspective view, a detail of a template for constructing pillars or columns according to a second special embodiment of the invention, -
Figure 7 shows the perspective view of a template for constructing pillars or columns according to a second special embodiment of the invention, -
Figure 8 shows the perspective view of a column with a brick capital made with the template inFigure 7 , and -
Figures 9 and10 show a template for constructing pillars or columns according to a third special embodiment of the invention, more industrialized with respect to the previous embodiments. -
Figures 2-5 regard a first special embodiment of the invention. The template according to this embodiment of the invention, indicated as a whole byreference numeral 1, comprises: - a fixed frame, in turn comprising a
base 3 and two substantiallyvertical guideways 5, and - a
slider 7 arranged to slide along theguideways 5. Theslider 7 forms a firsthollow seat 9 that substantially reproduces the full-scale, negative outer shape of the cross-section of the column or pillar in bricks or masonry to be made. As in the embodiment inFigure 2 , the firsthollow seat 9 can be obtained inside a belt formed by metal straps or welded metal sections. - To be more solid and rigid, the fixed frame can comprise a cross-beam or, more in general, a
connection head 11 that connects the top ends of theguideways 5 in a substantially rigid manner. Sometimes, the load-bearing elements of a column or pillar are not just bricks M or stones, but also comprise an inner core AI of concrete (substantially formed by a pillar of smaller section) that is subsequently faced with bricks or stones (Figure 1 ). Therefore, to allow the template and in particular the firsthollow seat 9 to be inserted around the core AI at the beginning of the work, both thebase 3 and the firsthollow seat 9 as well as the cross-beam orconnection head 11 each form an open frame or, in any case, advantageously have an open perimeter, as shown inFigure 2 .Reference numerals base 3 and the firsthollow seat 9, whilereference numeral 16 inFigure 5 indicates the second hollow seat formed by the base 3: the core AI or the finished column or pillar can pass through theopenings base 3 and theslider 7 perpendicular to or in any case transversely to the axis of the core AI, allowing thetemplate 1 to be positioned around the core AI before facing it with bricks and to take thetemplate 1 off of the finished column or pillar when, for example, the pillar or column reaches an already constructed ceiling. In the embodiment inFigure 2 , thebase 3 is substantially U-shaped. - Preferably, but not necessarily, the
frame 70 of theslider 7 that defines the firsthollow seat 9 lies substantially on a plane perpendicular, or in any case transversal, to the axis of the column or pillar to be made (Figures 2-4 ). - According to one aspect of the invention and as shown in
Figure 6 , the template 1' can be equipped with acounterweight 100 that partially compensates the weight of theslider 7; thecounterweight 100 can be mechanically connected to theslider 7 by means, for example, of a rope, cable, chain, belt orother return element 102. For example, thanks to one ormore return pulleys 108 positioned at the top of the guide orguides 5 and 5', the rope orchain 102 lifts thecounterweight 100 when theslider 7 is lowered by the user and, vice versa, lowers thecounterweight 100 when theslider 7 is raised, so as to make moving theslider 7 less laborious. The counterweight system can make utilization of thetemplate
Advantageously, as shown inFigure 6 , the guideway orguideways 5 and 5' are internally hollow and the counterweight 100 slides inside one of them, so as to be less in the way.
The weight of thecounterweight 100 is preferably between half and twice the weight of the slider 7'. More preferably, the weight of thecounterweight 100 is between three and five fourths of the weight of the slider 7'. Even more preferably, the weight of thecounterweight 100 is between 0.9 and 1.1 times the weight of the slider 7'. For example, thecounterweight 100 could have a weight of approximately 4-5 kg. Preferably, when thetemplate 1 is mounted, theguideways 5 extend vertically for a height HG at least equal to, if not higher than, the height of the column or pillar to be made, so as not to have to remove and refit the template for constructing the same column or pillar.
Eachguide 5 can be part of arespective upright 52 that, as shown for example inFigure 9 , could also comprise anadjustable foot 54 that supports and extends thesame upright 52.
As shown in the embodiment inFigure 9 , each guide 5 (as optionally each adjustable foot 54) can be advantageously obtained from common metal section or tubular bar, preferably with closed cross-sections; the optional adjustable foot preferably slides inside the metal section, forming a telescopic subassembly.
In this case, as shown inFigures 2 ,6 and9 , theslider 7 can slide in direct contact with the outer surface of the metal sections of theguides 5, but preferably without sliding directly in contact with theadjustable feet 54, so as to reduce play betweenslider 7 and guides 5 and create more geometrically precise columns or pillars.
Eachadjustable foot 54 preferably has a height HP equal to or greater than 0.3 times the height HG of therelevant guideway 5.
Eachguide 5 preferably has a height HG of between 1.5 metres and 4 metres, and more preferably between 2 metres and 3 metres.
Eachadjustable foot 54 preferably has a height HP of between 0.7 metres and 1.5 metres.
If HG = 2.6 metres and HP = 1.2 metres, thetemplate guideway 5 comprises a single monolithic piece of metal section having the above-mentioned length HG. This metal section of theguide 5 has closed cross-sections for preferably at least 70% of its length HG, more preferably for 80% of its length HG, and even more preferably for 90% of length HG. Preferably, the height HG of eachguideway 5 is equal to at least half the height of the pillar or column in facing brickwork to be made. More preferably, the height HG of eachguide 5 is equal to at least two thirds of the height of the pillar or column in facing brickwork to be made.
The above-indicated expedients permit the simplification, weight reduction and increased resistance of theguide 5,5'and 5" and thetemplate
According to another aspect of the invention, and as shown inFigures 2 ,3 and9 , thetemplate props uprights 52, these being fixed (for example, via screws, pins or hinges 130) at least (and preferably exclusively) to the upper half of the upright or uprights 52.
More preferably, the strut(s) or prop(s) 13 and 13" are fixed to the top quarter of the upright or uprights 52. Even more preferably, as shown inFigures 2 ,3 and9 , the strut(s) or prop(s) 13 and 13" are fixed to the top end of the guide orguideways 5.
The bottoms of struts orprops 13 can be stood on (and preferably fixed by nails or screw anchors to) the floor (Figure 3 ).
This means that during normal use, the strut(s) or prop(s) 13 and 13" are fixed to the upright 52 or to theguide 5 at a height, with respect to the floor, respectively equal or greater than HG/2 or HG/4. This allows thetemplate template
In addition, the positioning and stabilization of theguideway floor props upright 52 is more precise and rapid than, for example, the stabilization of the guide 18 by means of the upper bracket 96 and 98 shown in Figures 11 and 12 of documentUS5915809 . - In any case, as an alternative, the
base 3 and thehead 11 of the template could be nailed or screw-anchored directly to the floor, ceiling, or other parts of the construction in which the template is used. - A process for using the previously described
template 1 shall now be described.
Thetemplate 1 is positioned so as to make the perimeters of the firsthollow seat 9 and the cross-sections of the column or pillar to be made substantially correspond to each other, and in a way such that theguideways 5 extend substantially parallel to the axis of the column or pillar to be made. With theslider 7 in the lowest position, work begins by arranging the first layer of bricks inside the firsthollow seat 9, placing the bricks against the perimeter of the firsthollow seat 9. After having completed the first layer of bricks, if necessary, theslider 7 is raised by a predetermined step, by making it slide along theguides 5 and locking it again at the appropriate height (with anopportune locking system 15, such as a screw that presses the head against theguide 5 for example), and then the second layer of bricks is laid in a similar manner, and then the successive layers until the column or pillar is completed (Figure 3 ); afterwards, thetemplate 1 can be removed. - In this way, it is possible to construct pillars in brick, stone or other building blocks, much more rapidly than using just spirit levels, plumb lines and rules; the template according to the invention allows a square-section brick pillar 50 X 50 cm each side and 2.7-3 m tall to be built in approximately 2-4 hours, with a reduction of around 50% with respect to construction techniques using levels, plumb lines and rules. A template according to the invention also allows aligning and generally arranging bricks and stones with considerable precision and excellent aesthetic results, even if used by not particularly skilled bricklayers.
- The
template 1 can be produced using low-cost technologies and the not particularly close tolerances of metal structural work, even if a greater coupling precision between theslider 7 and theguides 5 improves the geometrical precision of the columns and pillars that are constructed. For example, theguides 5 could be obtained from normal metal sections and theslider 7 could be a structure of metal straps or welded metal sections. - The fixed frame can be advantageously equipped with just two guideways 5: this number is a good compromise that renders the
slider 7 sufficiently sturdy and the mounting and removal of the template before and after use sufficiently rapid. Indicatively, atemplate 1 with twoguides 5 can be mounted and positioned in approximately ten-twenty minutes, and taken down in approximately ten minutes. Clearly however, the number ofguideways 5 and 5' could also be different from two, without leaving the scope of the invention. For example, in the embodiments inFigures 6 ,9 and10 , only one guideway is present; this reduces the mounting times, weight and cost of the template, as well as the sliding or rolling friction between theguideways 5 and 5' and theslider 7, to a minimum. - From what has been previously explained, it ensues that for constructing columns or pillars in brick or stone having cross-sections of different shape and dimensions it is necessary to use
sliders 7 that definehollow seats 9 of different shapes and dimensions. As shown inFigure 6 , the fixed frame is advantageously made so that it can be reversibly disassembled and reassembled; in particular, the twoguideways 5 can be reversibly dismantled from thebase 3 and theconnection head 11. In order to use thesame base 3 and thesame connection head 11, as well as thesame guides 5, for constructing columns or pillars having different cross-sections, a set oftemplates 7 can be advantageously used, each one defining a firsthollow seat 9 of different shape and dimensions, but all having the same centre distance L between the slide seats 72 of the guides 5 (Figure 5 ). - The previously described embodiments are susceptible to various modifications and variations without departing from the scope of protection of the present invention. For example, the hollow seat could have a perimeter that is not just square or rectangular, but also circular, elliptical, ovoidal or rhomboidal, for constructing columns or pillars with cross-sections of the corresponding shape. There could be notches, holes, or protuberances, mutually equidistant with a constant pitch, along the guideways and/or a graduated scale for moving the slider along the guideways in constant steps, or in any case, for positioning it with greater precision. In the embodiment in
Figure 3 , the firsthollow seat 9 reproduces the negative outer shape of approximately 80% of the pillar's square cross-section, and this reproduces approximately 80% of the pillar's perimeter. In other embodiments, the slider's hollow seat could reproduce larger (the entire perimeter for example) or smaller portions than 80% of the section of the pillar or column to be made, but preferably at least half: this fraction can be particularly advantageous for constructing pillars with a circular or elliptical section. - Advantageously, as shown in
Figure 6 , eachguideway 5 and 5' has a polygonal outer cross-section, preferably square or rhomboid, and theslider 7 comprises one ormore slider wheels 74 arranged to engage with and run on aguide 5 and 5' so as to reduce play, noise and friction betweenslider 7 and guides 5 and 5'. - Advantageously, as shown in
Figure 6 , theslider wheels 74 can have concave sides presenting, for example, a perimetric groove, preferably with a V-section, which extends around the entire circumference of the side of each wheel. These concave sides advantageously engage and roll on at least one edge of the guide 5', so as to prevent or further limit undesired rotation of theslider 7 around the axis of the guides 5': this expedient is particularly advantageous when, as inFigures 6 ,7 ,9 and10 , the template according to the invention is equipped with just oneguideway - Advantageously, the
slider 7 is equipped with at least threewheels 74, not coaxial with each other, of which at least one engages with an edge of the guide 5' and at least one other engages with the opposite edge with respect to the axis of the guide 5' itself: this expedient also contributes to generally reducing play betweenslider 7 and guides 5', and undesired rotation of theslider 7 both around the axis of theguide 5 and 5' or guides 5' and around axes perpendicular (or more in general, transversal) to the guide 5', thereby improving sliding. - As in the embodiment in
Figure 6 , theslider 7 could also comprise aslider shell 76, in sheet metal for example, on which the concave-sided wheels 74 are fixed such that they are able to rotate. - Advantageously, as shown in
Figure 6 , theslider 7 could be equipped with astep reference 106, arranged to move the slider 7 a precise distance with respect to one of the already laid layers of bricks or stones of the column or pillar. For example, thestep reference 106 could be an L-bracket with a pointed end (Figure 6 ), or a transparent element with one or more reference lines traced on it. Preferably, thestep reference 106 extends vertically, upwards or downwards, from theframe 70 of the slider. The L-bracket 106 could be used, for example, by aligning the horizontal tip on the layer of mortar (also known as "coursing joint" in technical jargon) that horizontally separates the last and the penultimate layer of bricks or building blocks already laid. Thestep reference 106 allows theslider 5 to be repositioned more rapidly than, for example, using a graduated scale applied along one of theguides 5. - In addition to the use of wheels, as in
Figure 6 , or by means of asimple slide seat 72 in the same material as the rest of theslider 7, as inFigures 2-5 , the sliding coupling betweenslider 7 and guides 5 and 5' can be accomplished by means of suitable friction bearings (for example, in low-friction materials such as Teflon, nylon or self-lubricating materials) or rolling-contact bearings (for example, ball or roller bearings), or even a rack-and-pinion or nut and worm coupling. The template can optionally be equipped with a motor or an actuator arranged to operate theslider 7 and 7'. As shown inFigure 6 , the frame 70' of the slider can be advantageously formed by two half-frames frames - Advantageously, as shown in
Figure 7 , theframe 70" of the slider could have one or more telescopic sides so as to allow the length of the sides themselves to be reversibly and rapidly adjusted; in this way, it is possible to use asingle frame 70" to make columns or pillars having cross-sections of different shapes and dimensions, for example, square or rectangular.
As in the embodiment inFigure 7 , theframe 70" of theslider 7" could comprise a plurality oftubular sections 70C and a plurality ofangle brackets 70D. Theangle brackets 70D are substantially rigid and their ends are slidingly inserted at the hollow ends of thetubular sections 70C. The lengths of the various sides can be adjusted, for example, by locking theangle brackets 70D with respect to thesections 70C by means ofscrew knobs 70E. Eachscrew knob 70E has a male thread at one end that, when screwed into the wall of the associatedtubular section 70C, presses the end of theangle bracket 70D against the inner wall of thesection 70C itself. Alternatively, thetubular sections 70C and theangle brackets 70D could have a series of through holes and the length of the various sides of theframe 70" could be adjusted by inserting a locking pin inside two coaxial holes, one on thetubular section 70C and the other on theangle bracket 70D. - Advantageously, as shown in
Figure 7 , theframe 70" could be fixed to the guideway 5' by anadjustable clamping system 70F that allows thetubular section 70C closest to the guide 5' and transversal to it (arrow Fl) to be reversibly moved towards and away from the guideway 5' itself. As shown inFigure 7 , theadjustable clamping system 70F could comprise, for example, aslot 70G and a lockingscrew 70H that, when screwed into theslider 7", locks the sliding of the plate on which theslot 70G is obtained. Theadjustable clamping system 70F allows brick bases or capitals CP to be made at the top of pillars without disassembling or substituting theadjustable frame 70" after the intermediate section of the pillar TP has been made (Figure 8 ). - As shown in
Figures 9 and10 , in particular when the template for constructing pillars or columns according to the invention is equipped with just oneguideway 5", thestruts 13" needed to support the template itself and make it stable can even be just two, one or none. Preferably, if there are only two, thestruts 13" are arranged so as to substantially form, together with theguide 5", a pyramid or tetrahedron, so as to create a considerably rigid and stable structure. If necessary, for example, due to the bulk of surrounding objects, thestruts 13" could be mounted aligned and coplanar with thesingle guideway 5". - The examples and lists of possible variants of the present application are to be intended as non-exhaustive lists.
Claims (15)
- A template for constructing pillars or columns (1), comprising:- a fixed frame, in turn comprising at least one upright (52) that is arranged to rest its lower end on an underlying floor (P) and in turn comprises at least one guideway (5), and- at least one slider (7) arranged to slide along the guideway and defining a first hollow seat (9) that substantially reproduces the full-scale, negative outer shape of at least part of the cross-section of the column or pillar to be made,characterized by further comprising a counterweight (100) mechanically connected to the at least one slider so as to be lowered when the slider (7) is raised and to be raised when the slider (7) is lowered, in order to facilitate the user in manually raising and lowering the at least one slider and make these operations less laborious.
- A template for constructing pillars or columns (1), comprising:- a fixed frame, in turn comprising at least one upright (52) that is arranged to rest its lower end on an underlying floor (P) and in turn comprises at least one guideway (5),- at least one slider (7) arranged to slide along the guideway and defining a first hollow seat (9) that substantially reproduces the full-scale, negative outer shape of at least part of the cross-section of the column or pillar to be made, and- at least one prop or strut (13) arranged to rest its lower end on the floor and fixed to the at least one upright so as to support it in a substantially standing position,characterized in that
the at least one prop or strut (13) is fixed to the at least one upright (52) at least on the upper half of the upright itself. - A template according to claim 1 and/or 2, wherein:- the guideway (5) comprises a first tubular bar having, at least for most of its length (HG), substantially closed cross-sections, and- the at least one slider (7) is arranged to slide along and on the sides of the first tubular bar.
- A template according to claim 1 and/or 2, wherein the at least one upright (52) comprises an adjustable foot (54) arranged to rest on the underlying floor (P) during normal use and in turn comprising a second tubular bar arranged for being inserted inside or on the first tubular bar so as to form a telescopic assembly of reversibly adjustable length.
- A template according to claim 3 and/or 4, wherein:- at least one of the first and the second tubular bars has closed cross-sections that form at least two edges and the shape of which is chosen from the following group: square, rectangular, rhomboidal, polygonal and almond-shaped sections, and- the at least one slider (7) is arranged to slide along said at least two edges when the at least one slider slides along the guideway.
- A template according to claim 3 and/or 4, wherein:- at least one of the first and the second tubular bars has closed cross-sections that form at least two edges located on two opposite sides of the cross-sections, and- the at least one slider is arranged to slide along said at least two edges when the at least one slider slides along the guideway.
- A template according to claim 1, wherein the counterweight (100) has a weight of between half and twice the weight of the at least one slider (7).
- A template according to claim 1, comprising at least one lifting cable (102), belt or chain, wherein the at least one lifting cable (102), belt or chain is arranged to mechanically connect the slider (7) and the counterweight (100) such that when the slider (7) is raised, the counterweight (100) is lowered and vice versa.
- A template according to claim 1, comprising a dissipator element arranged to brake, without necessarily completely stopping, the movements of the counterweight (100) and/or of the at least one slider (7) along the at least one guideway (5).
- A template according to claim 9, wherein the dissipator element is arranged to dissipate at least part of the kinetic energy of the counterweight (100) and/or of the at least one slider (7).
- A template according to claim 9, wherein the dissipator element comprises an element chosen from the following group:- a braked return pulley (108), on and/or around which the at least one lifting cable (102), belt or chain slides,- a hub on which this return pulley (108) rotates,- a brake external to the return pulley (108) and arranged to brake the rotation,- a brake arranged to brake the sliding of the lifting cable (102), belt or chain by acting directly on the lifting cable (102), belt or chain, and- a brake arranged to act directly on the counterweight (100) or on the slider (7).
- A template (1) according to claim 1, wherein the first hollow seat (9) substantially reproduces the outer shape of the at least half of the perimeter of the cross-section of the column or pillar to be made.
- A template (1) according to claim 1, wherein the fixed frame comprises a base (3) by means of which it can be stood on a floor (P) or on the ground.
- A template (1) according to claim 1, wherein the perimeter of the first hollow seat (9) has at least one opening (19) through which the completed pillar or column or its inner core (AI) can pass, by moving the base and/or the connection head transversely to the axis of the pillar, column or core (AI).
- A process for constructing columns or pillars in brick, stone or other building blocks, comprising the following operations:a) preparing a template (1) having characteristics according to one of previous claims,b) arranging the first hollow seat (9) in correspondence to a first section of the future column or pillar to be made, andc) positioning a plurality of bricks, stones or other building blocks in the first hollow seat (9), if necessary, binding them with mortar or cement and placing them against or substantially with reference to the perimeter of the first hollow seat (9) so as to make a first section of the column or pillar,d) sliding the slider (7) parallel to the axis of the column or pillar to be made and arranging the first hollow seat (9) in correspondence to a second section of the future column or pillar to be made, ande) repeating operation c) and, if necessary, operationd) for a sufficient number of times to complete the column or pillar.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT001891A ITMI20091891A1 (en) | 2009-10-30 | 2009-10-30 | DIMA FOR REALIZING PILLARS OR COLUMNS, AND METHOD FOR REALIZING COLUMNS OR PILLARS IN BRICKS, STONES OR OTHER BUILDING BLOCKS |
ITMI2010A000062A IT1398158B1 (en) | 2009-10-30 | 2010-01-21 | DIMA FOR REALIZING PILLARS OR COLUMNS, AND METHOD FOR REALIZING COLUMNS OR PILLARS IN BRICKS, STONES OR OTHER BUILDING BLOCKS |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2339093A1 true EP2339093A1 (en) | 2011-06-29 |
Family
ID=42333567
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10179185A Withdrawn EP2339093A1 (en) | 2009-10-30 | 2010-09-24 | Guide for making pillars or columns, and method for making columns and pillars of bricks, stones or other building blocks |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2339093A1 (en) |
IT (2) | ITMI20091891A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9624680B2 (en) | 2015-02-20 | 2017-04-18 | Stephen Atkinson | Bricklaying |
CN108824820A (en) * | 2018-06-25 | 2018-11-16 | 中国冶集团有限公司 | A kind of construction tool and method of rotation brick column masonry |
CN113216614A (en) * | 2021-05-18 | 2021-08-06 | 江苏万隆建设有限公司 | Template structure for pouring constructional column |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB583235A (en) * | 1944-05-09 | 1946-12-12 | William John Langbridge | Improvements in bricklayers templates for use in erecting walls and the like |
FR1505569A (en) * | 1966-11-04 | 1967-12-15 | Apparatus for building walls | |
DE2247954A1 (en) * | 1971-09-30 | 1973-04-05 | Haes Albert De | METHOD AND DEVICE FOR BUILDING |
US5915809A (en) | 1997-01-13 | 1999-06-29 | Gilliam; Jim A. | Masonry column guide |
NL1020353C2 (en) | 2002-04-10 | 2003-10-13 | Tomi B V | Bricklaying aid, comprises support structure releasably securable to alignment device |
-
2009
- 2009-10-30 IT IT001891A patent/ITMI20091891A1/en unknown
-
2010
- 2010-01-21 IT ITMI2010A000062A patent/IT1398158B1/en active
- 2010-09-24 EP EP10179185A patent/EP2339093A1/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB583235A (en) * | 1944-05-09 | 1946-12-12 | William John Langbridge | Improvements in bricklayers templates for use in erecting walls and the like |
FR1505569A (en) * | 1966-11-04 | 1967-12-15 | Apparatus for building walls | |
DE2247954A1 (en) * | 1971-09-30 | 1973-04-05 | Haes Albert De | METHOD AND DEVICE FOR BUILDING |
US5915809A (en) | 1997-01-13 | 1999-06-29 | Gilliam; Jim A. | Masonry column guide |
NL1020353C2 (en) | 2002-04-10 | 2003-10-13 | Tomi B V | Bricklaying aid, comprises support structure releasably securable to alignment device |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9624680B2 (en) | 2015-02-20 | 2017-04-18 | Stephen Atkinson | Bricklaying |
CN108824820A (en) * | 2018-06-25 | 2018-11-16 | 中国冶集团有限公司 | A kind of construction tool and method of rotation brick column masonry |
CN113216614A (en) * | 2021-05-18 | 2021-08-06 | 江苏万隆建设有限公司 | Template structure for pouring constructional column |
CN113216614B (en) * | 2021-05-18 | 2022-04-19 | 江苏万隆建设有限公司 | Template structure for pouring constructional column |
Also Published As
Publication number | Publication date |
---|---|
ITMI20091891A1 (en) | 2011-04-30 |
IT1398158B1 (en) | 2013-02-14 |
ITMI20100062A1 (en) | 2011-05-01 |
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