US3685243A - Lattice grid assembly - Google Patents

Lattice grid assembly Download PDF

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Publication number
US3685243A
US3685243A US125990A US3685243DA US3685243A US 3685243 A US3685243 A US 3685243A US 125990 A US125990 A US 125990A US 3685243D A US3685243D A US 3685243DA US 3685243 A US3685243 A US 3685243A
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US
United States
Prior art keywords
lattice grid
rods
grid assembly
gripping members
wedge
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
Application number
US125990A
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English (en)
Inventor
Otto Wyss
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3685243A publication Critical patent/US3685243A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F19/00—Other details of constructional parts for finishing work on buildings
    • E04F19/10—Built-in gratings, e.g. foot-scrapers

Definitions

  • Pairs of adjacent gripping members are [56] References Cited UNITED STATES PATENTS urged against the rods by a screw tightened wedge interposed between each pair.
  • the invention consists in the fact that the lateral clamping bars have projections or bosses which are held in a force-locking manner and which are firmly clamped between elastically deformable partition walls of the lateral clamping bars, whereby the partition walls are secured by wedges attached by means of tensioning elements.
  • the lateral clamping bar is preferably arranged on a lateral cross bar and is attached to this cross bar by means of tension screws on the wedges.
  • FIG. ,1 is a top view of a part of a lattice grid
  • FIG. 2 is a cross-section taken along lines II-II in FIG. 1;
  • FIG. 3 is a cross-section through a portion of a lateral cross bar of an assembled lattice grid, on a larger scale
  • FIG. 4 is a cross-section as in FIG. 3, but during an intermediate assembly phase.
  • the lattice grid consists of longitudinal rods 1, lateral clamping bar 2, wedges 3, lateral cross bar 4, and tension screws 5 with nuts 6.
  • FIGS. 1 and 2 show a part of a lattice grid in the assembled state.
  • the longitudinal rods 1 have a head la, a central boss lb, and a foot lc (see also FIGS. 3 and 4).
  • the lateral clamping bar 2 has elevated channels with vertical walls 2c, and in between, recesses 2b in each of which two longitudinal rods 1 are firmly clamped by means of a wedge 3.
  • recesses 2b In every recess 2b there are two elastically flexible partition walls 7. These walls have noses 8 and slanting surfaces 9 at the sides that are opposite each other. Furthermore, the wall surface of every partition 7 which is opposite the slanted surface 9 is provided with a recess which is adapted to accommodate the middle boss lb of a longitudinal rod 1.
  • Every wedge 3 has a recess 11 for the head of a tension screw 5.
  • the foots 1c of the longitudinal rods 1 engage suitably designed recesses between the vertical walls 2c and the partitions 7.
  • the middle bosses lb bear against the walls 20 on one side, and on the other side, grip the recesses 10 of the partitions 7 from underneath.
  • the longitudinal rods 1 are thus firmly clamped in a force-locking manner between the walls 20 and the recesses 10.
  • the lateral clamping bar 2 On one end the lateral clamping bar 2 has a trapezoidal groove 14 and on the opposite end a corresponding trapezoidal boss 15. Any required number of clamping bars 2 may thus be interconnected to form a lattice grid of desired dimensions.
  • the lattice grids are assembled in two steps. First of all, tension screws 5 are inserted in four wedges 3 at a time. The four wedges are then inserted in the four recesses 2b of a lateral clamping bar 2 so that they will assume the position shown in FIG. 4 so that the screws 5 will extend through the holes 16. During insertion the bosses 12, while resting against the slanted surfaces 9, force the elastic partitions 7 somewhat apart. The partitions 7 once again elastically return to their starting position as soon as the bosses 12have been moved past the edges 9a. In the intermediate phase, illustrated in FIG.
  • the required number of longitudinal rods 1 are cut to the desired length.
  • lateral cross bars 4 are cut to the desired length and are provided with holes for the tension screws 5.
  • the longitudinal rods are then inserted in the recesses provided for this purpose between walls 20 and 7, whereby the partitions 7 are somewhat elastically deformed against the wedges until the middle bosses lb come to rest'in the recesses 10.
  • the longitudinal rods are provisionally firmly clamped by the rebounding partitions 7.
  • the cross bar 4 are now placed over the protruding screws 5 on the underside of the lateral bars 2 and are attached by means of nuts 6.
  • the wedges 3 are drawn into the terminal position shown in FIG. 3, in which they firmly press the partitions 7 against the middle bosses of the longitudinal rods.
  • the finished lattice grids can then be surrounded in the usual manner by a sash frame, not shown here.
  • the heads la of the longitudinal rods 1 can of course have any desired form, and for example, can be designed considerably wider than shown in the drawings.
  • the longitudinal rods 1, the lateral clamping bars 2, and the cross bars 4 are preferably made of light metal and the wedges 3 are preferably made of plastic. But all parts can be made of other raw materials, for example brass, or they can be made entirely of plastic.
  • a lattice grid assembly comprising:
  • each clamping bar including a plurality of elastically deformable gripping members adapted to engage the bosses on the rods, and
  • each clamping bar has a plurality of channel recesses and a pair of gripping members are positioned in each recess to thereby form two pockets between the gripping members and the side walls of the recess for receiving the longitudinal rods.
  • each gripping member has a slanted face for engagement by a wedge member, a nose projection on the same side as the slanted face and a shoulder on the opposite side for retainingly engaging the boss on a longitudinal rod, and each wedge member has lateral projections for catching under the slanted faces of the gripping members during an intermediate assembly stage and enlarged end pieces for resting against the nose projections during said stage.
  • a lattice grid assembly as claimed in claim 5 further comprising means for securing two clamping bars together end-to-end.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Sewage (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
US125990A 1970-04-02 1971-03-19 Lattice grid assembly Expired - Lifetime US3685243A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH487370A CH522098A (de) 1970-04-02 1970-04-02 Aus Längsprofilstäben und Querprofilen zusammengesetzter Gitterrost und Verfahren zu dessen Herstellung

Publications (1)

Publication Number Publication Date
US3685243A true US3685243A (en) 1972-08-22

Family

ID=4284033

Family Applications (1)

Application Number Title Priority Date Filing Date
US125990A Expired - Lifetime US3685243A (en) 1970-04-02 1971-03-19 Lattice grid assembly

Country Status (9)

Country Link
US (1) US3685243A (enExample)
AT (1) AT311024B (enExample)
BE (1) BE764242A (enExample)
CA (1) CA936325A (enExample)
CH (1) CH522098A (enExample)
FR (1) FR2092412A5 (enExample)
GB (1) GB1346101A (enExample)
NL (1) NL162984C (enExample)
SE (1) SE371664B (enExample)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4276728A (en) * 1979-09-20 1981-07-07 Balco, Inc. Dirt removing grid system for floors
US6226952B1 (en) * 1998-12-29 2001-05-08 Rotecna, S.A. Device for anchorage to a grating floor
US7163351B1 (en) 2005-12-21 2007-01-16 Shaver Donald S Tire cleaning apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4276728A (en) * 1979-09-20 1981-07-07 Balco, Inc. Dirt removing grid system for floors
US6226952B1 (en) * 1998-12-29 2001-05-08 Rotecna, S.A. Device for anchorage to a grating floor
US7163351B1 (en) 2005-12-21 2007-01-16 Shaver Donald S Tire cleaning apparatus

Also Published As

Publication number Publication date
NL162984B (nl) 1980-02-15
NL162984C (nl) 1980-07-15
DE2107705A1 (de) 1971-11-11
CA936325A (en) 1973-11-06
NL7102719A (enExample) 1971-10-05
GB1346101A (en) 1974-02-06
CH522098A (de) 1972-04-30
BE764242A (fr) 1971-08-02
SE371664B (enExample) 1974-11-25
AT311024B (de) 1973-10-25
FR2092412A5 (enExample) 1972-01-21

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