US3839837A - Gratings - Google Patents

Gratings Download PDF

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Publication number
US3839837A
US3839837A US00291093A US29109372A US3839837A US 3839837 A US3839837 A US 3839837A US 00291093 A US00291093 A US 00291093A US 29109372 A US29109372 A US 29109372A US 3839837 A US3839837 A US 3839837A
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US
United States
Prior art keywords
bosses
elements
grating
section
apices
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.)
Expired - Lifetime
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US00291093A
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English (en)
Inventor
P Jaconeli
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AVD A VOTRE DISPOSITION
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AVD A VOTRE DISPOSITION
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Publication of US3839837A publication Critical patent/US3839837A/en
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Expired - Lifetime legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
    • E04C2/42—Gratings; Grid-like panels
    • E04C2/421—Gratings; Grid-like panels made of bar-like elements, e.g. bars discontinuous in one direction
    • E04C2/426—Gratings; Grid-like panels made of bar-like elements, e.g. bars discontinuous in one direction with continuous bars that remain unconnected at crossing points of the grid pattern, e.g. with undulating bars

Definitions

  • This simplified and economical grating structure comprises flat parallel elongated sections or bars disposed on edge and braced by means of bosses pressed directly in said sections and projecting from at least one lateral face of each section.
  • the sections are assembled, by welding, setting or otherwise, by causing the apices of registering bosses to contact one another; elongated bosses may also be used, and V-shaped notches may be pressed in the edges of the sections for constituting anti-skid elements; a plurality of grating elements may be assembled and secured to one another by juxtaposition, the sections being formed in this case with a bent end portion engaging a gap in the adjacent section.
  • the pitch and shape of the alternating bosses are such that the bosses form together a sinusoidal section through the grating element 2 Claims, 10 Drawing Figures GRATINGS FIELD OF THE INVENTION
  • the present invention relates in general to gratings.
  • these gratings comprise a metal frame structure having secured to its edges a plurality of cross members crossing each other to constitute a rigid assembly of which the upper, flat and perforated surface constituted by the edges of the members lying in a plane which forms the floor proper.
  • Gratings or this general type are objectionable on account of their considerable weight per unit surface area.
  • the grating structure according to the present invention is characterised in that it comprises flat parallel sections, disposed on edge, braced by pressed bosses projecting from at least one of their lateral faces.
  • cross members for stiffening the gratings in the transverse direction may be dispensed with.
  • the grating structure consists of sections in which bosses are pressed or stamped so as to project alternatively on one and the other lateral faces of the sections, said sections being so disposed that the bosses formed on the lateral faces of two adjacent sections engage one another at their apices.
  • the number of sections necessary for the grating construction may be reduced by one-half, the grating weight being reduced accordingly.
  • the plurality or section constituting the gratings may be assembled through any known means but preferably by welding or setting at all or part of their mutual contact points.
  • each section comprises bosses projecting alternately from one and the other lateral faces thereof, the bosses projecting from one face are formed with a central hole at their apex, and those projecting from the opposite face comprise tubular tenons adapted to be fitted into the holes of the adjacent bosses engaged thereby, to permit the subsequent setting or the two adjacent sections.
  • the relative position of the bosses formed on each section determines the grating pattern which may be of any desired type.
  • the pitch and shape of these bosses are calculated with a view to cause these alternating bosses to form sinusoidal patterns with one another (in cross section).
  • an improved strength may be imparted to the sections by using elongated bosses having its major dimension dispposed parallel to the section length.
  • the waves or corrugations resulting from the recesses formed along the upper and lower edges or each section at the level of the vertical median plane of each boss and resulting from the stamping or pressing of these bosses are not eliminated but on the contrary accentuated, in order to constitute anti-skid elements.
  • each section comprises in the gap formed between any pair of adjacent bosses and at the level of its upper and lower edges, respectively, substantially V-shaped pressed portions or notches projecting alternately from one and the other side of the section and differently from one gap to another the free edges or said pressed portions or notches constituting likewise efficient non-skid elements in the general grating structure.
  • FIGS. 1, 2 and 3 are fragmentary plan views from above and in cross section showing three embodiments of the grating structure of this invention
  • FIGS. 4, 5 and 6 are plan views from above showing three sections adapted to be used in the manufacture of said gratings;
  • FIG. 7 is a side elevational view showing more particularly the projections and constructions formed in each section during the pressing or stamping of said bosses;
  • FIG. 8 is a side elevational view showing a modified embodiment of the section shown in FIG. 7;
  • FIG. 9 is a plan elevational view from above showing the possibilities of assembling one element of said gratings with other juxtaposed elements.
  • FIG. 10' is a perspective view showing diagrammatically another of a section suitable for carrying out this invention.
  • the gratings according to the present invention comprise essentially flat parallel sections braced by means of bosses formed by stamping or pressing therein and projecting from at least one of their lateral faces.
  • each section 2 comprises pressed bosses 3 and the sections are assembled for example by welding all or part of the points of mutual contact to one another. It may be noted that said sections 2 are off-set laterally so that each boss 3 of one section is fixed to the web formed between a pair of adjacent bosses of the adjacent section.
  • each section 4 comprises aligned bosses 5a, 5b projecting turns alternately from one and the other face of the section.
  • each boss 5a comprises at its apex a tenon6 adapted to penetrate into the hole 7 formed through the apex of the boss 5b of the adjacent section 4 during the assembling operation.
  • bosses 5a and 5b on the above-mentioned sections 4 will reduce the thickness of this section 4 without impairing its rigidity and mechanical strength.
  • each boss may have a generally circular shape as shown in H6. 7 or, in contrast thereto, an elongated shape, i.e. an elliptic crosssectional shape 11 with the'major axis of the ellipse parallel or substantially parallel to the longitudinal axis of the section, as shown in FIG. 8.
  • recessed portions 10 are formed at the level or the vertical median plane of each boss and along the upper and lower edges of the section, to constitute waves or corrugations 12 along each section edge.
  • the waves or corrugations 12, which would normally be removed, are on the contrary accentuated in order to constitute non-skid elements counteracting any tendency of the user to slip in the longitudinal direction of the sections.
  • each section thereof comprises as shown in FIG. spaced and substantially V-shaped pressed notches 13 of which the free edges act as non-skid elements. These notches 13 project alternately on one and the other side of each section 2 and to a different degree from one gap to another. lt may be noted that the useful or operative edges of each notch 13 are formed on top of each sec tion 2, as shown at 12, so that they are particularly capable of acting as non-skid elements.
  • the various sections are assembled by welding or setting, but it is also possible to complete the grating structure, if necessary, with transverse rods 14 as shown more particularly in FIG. 2.
  • These rods disposed at right angles to the sections 4 or otherwise extend through these sections by using to this end the bore formed to this end in the tubular tenons 6 of bosses 5a.
  • these rods are provided only at proper relative intervals. for example every three or four bosses.
  • the sections constituting the gratings may have any desired length it is obvious that transporting the gratings to the construction site makes it necessary to manufacture them in the form of separate elements adapted to be stacked and subsequently assembled.
  • the juxtaposition of an element 15 as illustrated in FIG. 8 with another element such as is a relatively simple matter due to the presence of tenons 6 engageable into the holes 7 of the registering bosses the assembling of the same element 15 with an element such as 15b is not so simple.
  • the present invention provides on each section 4 an elbow or bent lug 16 at one of its free ends and when assembling the sections 4 these are properly disposed so that one elbow 16 projects alternatively from the right-hand of left-hand side of the longitudinal edges or the gratings.
  • the gap between two adjacent sections 4 is closed on one side by an elbow 16 but comprises on the other side an opening 18.
  • a grating adapted to constitute a floor surface comprising a multiplicity of substantially coextensive mutually parallel transversely spaced elongated flat grating elements disposed on edge and having generally coplanar upper and lower edges with their upper edges constituting said floor surface, said elements each being of a width between its upper and lower edges substantially less than the element length; and a row of bosses of generally round configuration unitarily pressed in each of said elements and tapering in alternate directions transversely toward an adjacent element while being secured thereto at apices of said bosses, said bosses being of a width less than that of the respective element, the bosses of each element extending in one direction being secured to the bosses of an adjacent element extending in the opposite direction, the bosses along one side of each element being formed with tubular projections at their apices and the bosses along the opposite side of each element being formed with holes at their apices receiving the projections of an adjacent element.
  • a grating adapted to constitute a floor surface comprising a multiplicity of substantially coextensive mutually parallel transversely spaced elongated flat grating elements disposed on edge and having generally coplanar upper and lower edges with their upper edges constituting said floor surface, said elements each being of a width between its upper and lower edges substantially less than the element length; and a row of bosses unitarily pressed in each of said elements and tapering transversely toward an adjacent element while being secured thereto at apices of said bosses, at least said upper edge of each of said elements being deformed laterally in opposite directions to produce V-shaped notches defining nonskid elements along said surface.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Sewage (AREA)
  • Panels For Use In Building Construction (AREA)
  • Grates (AREA)
  • Floor Finish (AREA)
  • Toys (AREA)
US00291093A 1971-09-21 1972-09-20 Gratings Expired - Lifetime US3839837A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7134726A FR2153824A5 (enrdf_load_stackoverflow) 1971-09-21 1971-09-21

Publications (1)

Publication Number Publication Date
US3839837A true US3839837A (en) 1974-10-08

Family

ID=9083523

Family Applications (1)

Application Number Title Priority Date Filing Date
US00291093A Expired - Lifetime US3839837A (en) 1971-09-21 1972-09-20 Gratings

Country Status (14)

Country Link
US (1) US3839837A (enrdf_load_stackoverflow)
JP (1) JPS5227929B2 (enrdf_load_stackoverflow)
BE (1) BE788968A (enrdf_load_stackoverflow)
CA (1) CA991817A (enrdf_load_stackoverflow)
CH (1) CH562936A5 (enrdf_load_stackoverflow)
DE (1) DE2246065C3 (enrdf_load_stackoverflow)
ES (1) ES406848A1 (enrdf_load_stackoverflow)
FR (1) FR2153824A5 (enrdf_load_stackoverflow)
GB (1) GB1407226A (enrdf_load_stackoverflow)
IE (1) IE36714B1 (enrdf_load_stackoverflow)
IT (1) IT967667B (enrdf_load_stackoverflow)
LU (1) LU66113A1 (enrdf_load_stackoverflow)
NL (1) NL7212756A (enrdf_load_stackoverflow)
SE (1) SE394482B (enrdf_load_stackoverflow)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5613340A (en) * 1993-04-20 1997-03-25 Sollac Reinforcement member for the reinforcement of concrete structures
US7658038B2 (en) 2004-03-29 2010-02-09 Lifetime Products, Inc. System and method for constructing a modular enclosure
US7707783B2 (en) 2005-05-11 2010-05-04 Lifetime Products, Inc. Modular enclosure
US7770339B2 (en) 2004-03-29 2010-08-10 Lifetime Products, Inc. Roof system for a modular enclosure
US7770337B2 (en) 2004-03-29 2010-08-10 Lifetime Products, Inc. Modular enclosure with offset panels
US7770334B2 (en) 2004-03-29 2010-08-10 Lifetime Products, Inc. Door assembly for a modular enclosure
US7779579B2 (en) 2004-03-29 2010-08-24 Lifetime Products, Inc. Packaging system for a modular enclosure
US7797885B2 (en) 2004-03-29 2010-09-21 Lifetime Products, Inc. Modular enclosure
US7926227B2 (en) 2004-03-29 2011-04-19 Lifetime Products, Inc. Modular enclosure with living hinges
US8020347B2 (en) 2005-05-11 2011-09-20 Lifetime Products, Inc. Modular enclosure
US8091289B2 (en) * 2004-03-29 2012-01-10 Lifetime Products, Inc. Floor for a modular enclosure
US8161711B2 (en) 2003-04-30 2012-04-24 Lifetime Products, Inc. Reinforced plastic panels and structures

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2133430A (en) * 1982-12-24 1984-07-25 John Raymond Williams Metallic structure
GB2264121B (en) * 1992-02-11 1995-12-06 Btr Plc Floor covering
JP2590640Y2 (ja) * 1993-01-07 1999-02-17 石川島播磨重工業株式会社 船体・海洋構造物の縦通肋骨材の補強構造
DE4332730C2 (de) * 1993-09-25 1996-01-25 Rietbergwerke Gmbh & Co Kg Hohlwand und Verfahren zu ihrer Herstellung
DE4429989A1 (de) * 1994-08-24 1996-02-29 Helmut W Diedrichs Leichtbauelement
FR2800103A1 (fr) 1999-10-22 2001-04-27 Caillebotis France Caillebotis a cadre depourvu d'elements rapportes au treillis et procede de realisation d'un tel caillebotis
JP4395952B2 (ja) * 2000-01-14 2010-01-13 トヨタ自動車株式会社 燃料電池セパレータの成形装置および成形方法
DE20209285U1 (de) * 2002-06-14 2002-12-05 SHS Lochbleche Butzbach GmbH, 35510 Butzbach Blech

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US880862A (en) * 1906-06-02 1908-03-03 Rodney G Chase Tread-surface.
US917355A (en) * 1906-08-26 1909-04-06 Frederick R Phillips Tread-surface.
US917354A (en) * 1908-08-26 1909-04-06 Frederick R Phillips Tread-surface.
US1300439A (en) * 1918-07-10 1919-04-15 John O Madison Trussed sheet structure.
US1974280A (en) * 1932-06-13 1934-09-18 Firestone Tire & Rubber Co Floor covering
US1982110A (en) * 1932-06-23 1934-11-27 Arthur E Sangdahl Armored floor structure
US2215918A (en) * 1940-01-22 1940-09-24 Gridiron Steel Company Ventilated ironing board
US2290001A (en) * 1941-12-24 1942-07-14 Jarvis & Jarvis Inc Bumper guard for casters
US2738297A (en) * 1952-06-10 1956-03-13 Pfistershammer Joseph Honeycomb-type structural materials and method of making same
US3151712A (en) * 1960-11-30 1964-10-06 Budd Co Insulating structure
US3173383A (en) * 1962-04-24 1965-03-16 Budd Co Railway vehicle floor structure
US3190412A (en) * 1960-05-25 1965-06-22 Johns Manville All-metallic insulation

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US880862A (en) * 1906-06-02 1908-03-03 Rodney G Chase Tread-surface.
US917355A (en) * 1906-08-26 1909-04-06 Frederick R Phillips Tread-surface.
US917354A (en) * 1908-08-26 1909-04-06 Frederick R Phillips Tread-surface.
US1300439A (en) * 1918-07-10 1919-04-15 John O Madison Trussed sheet structure.
US1974280A (en) * 1932-06-13 1934-09-18 Firestone Tire & Rubber Co Floor covering
US1982110A (en) * 1932-06-23 1934-11-27 Arthur E Sangdahl Armored floor structure
US2215918A (en) * 1940-01-22 1940-09-24 Gridiron Steel Company Ventilated ironing board
US2290001A (en) * 1941-12-24 1942-07-14 Jarvis & Jarvis Inc Bumper guard for casters
US2738297A (en) * 1952-06-10 1956-03-13 Pfistershammer Joseph Honeycomb-type structural materials and method of making same
US3190412A (en) * 1960-05-25 1965-06-22 Johns Manville All-metallic insulation
US3151712A (en) * 1960-11-30 1964-10-06 Budd Co Insulating structure
US3173383A (en) * 1962-04-24 1965-03-16 Budd Co Railway vehicle floor structure

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5613340A (en) * 1993-04-20 1997-03-25 Sollac Reinforcement member for the reinforcement of concrete structures
US8161711B2 (en) 2003-04-30 2012-04-24 Lifetime Products, Inc. Reinforced plastic panels and structures
US7779579B2 (en) 2004-03-29 2010-08-24 Lifetime Products, Inc. Packaging system for a modular enclosure
US7770339B2 (en) 2004-03-29 2010-08-10 Lifetime Products, Inc. Roof system for a modular enclosure
US7770337B2 (en) 2004-03-29 2010-08-10 Lifetime Products, Inc. Modular enclosure with offset panels
US7770334B2 (en) 2004-03-29 2010-08-10 Lifetime Products, Inc. Door assembly for a modular enclosure
US7797885B2 (en) 2004-03-29 2010-09-21 Lifetime Products, Inc. Modular enclosure
US7926227B2 (en) 2004-03-29 2011-04-19 Lifetime Products, Inc. Modular enclosure with living hinges
US8051617B2 (en) 2004-03-29 2011-11-08 Lifetime Products, Inc. Modular enclosure
US8091289B2 (en) * 2004-03-29 2012-01-10 Lifetime Products, Inc. Floor for a modular enclosure
US8132372B2 (en) 2004-03-29 2012-03-13 Lifetime Products Inc. System and method for constructing a modular enclosure
US7658038B2 (en) 2004-03-29 2010-02-09 Lifetime Products, Inc. System and method for constructing a modular enclosure
US7707783B2 (en) 2005-05-11 2010-05-04 Lifetime Products, Inc. Modular enclosure
US8020347B2 (en) 2005-05-11 2011-09-20 Lifetime Products, Inc. Modular enclosure

Also Published As

Publication number Publication date
DE2246065B2 (de) 1980-04-10
JPS5227929B2 (enrdf_load_stackoverflow) 1977-07-23
BE788968A (fr) 1973-01-15
CA991817A (fr) 1976-06-29
DE2246065C3 (de) 1980-11-27
FR2153824A5 (enrdf_load_stackoverflow) 1973-05-04
NL7212756A (enrdf_load_stackoverflow) 1973-03-23
IE36714B1 (en) 1977-02-02
IT967667B (it) 1974-03-11
DE2246065A1 (de) 1973-03-29
LU66113A1 (enrdf_load_stackoverflow) 1973-01-17
ES406848A1 (es) 1975-10-01
GB1407226A (en) 1975-09-24
SE394482B (sv) 1977-06-27
JPS4840228A (enrdf_load_stackoverflow) 1973-06-13
CH562936A5 (enrdf_load_stackoverflow) 1975-06-13
IE36714L (en) 1973-03-21

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