US3322400A - Anti-dazzling panel - Google Patents

Anti-dazzling panel Download PDF

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Publication number
US3322400A
US3322400A US439677A US43967765A US3322400A US 3322400 A US3322400 A US 3322400A US 439677 A US439677 A US 439677A US 43967765 A US43967765 A US 43967765A US 3322400 A US3322400 A US 3322400A
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US
United States
Prior art keywords
screen
panel
dazzling
frame
horizontal
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
US439677A
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English (en)
Inventor
Trucillo Giovanni
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.)
P V R PLASTICI VETRO RINFORZAT
Pvr Plastici Vetro Rinforzati SpA
Original Assignee
P V R PLASTICI VETRO RINFORZAT
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by P V R PLASTICI VETRO RINFORZAT filed Critical P V R PLASTICI VETRO RINFORZAT
Application granted granted Critical
Publication of US3322400A publication Critical patent/US3322400A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F7/00—Devices affording protection against snow, sand drifts, side-wind effects, snowslides, avalanches or falling rocks; Anti-dazzle arrangements ; Sight-screens for roads, e.g. to mask accident site
    • E01F7/06—Anti-dazzle arrangements ; Securing anti-dazzle means to crash-barriers

Definitions

  • An anti-dazzling barrier 4for road medians having a substantially rectangular frame vertically and iixedly mounted with respect to the ground and a plastic panel having suitable opaque characteristics and xedly mounted within the frame.
  • the present invention relates to a panel for anti-dazzling barriers for road use, to be preferably disposed on the median strip of roads, turnpikes, or the like.
  • the anti-dazzling barriers in present use are constituted of hedges. Hedges, however, require some growing time before gaining suflicient growth to be useful and a periodical trimming to be kept at uniform lheight and thickness. Consequently, besides the initial installation cost, hedges involve high maintenance expenses.
  • a further object of the present invention is to provide an anti-dazzling barrier which has low installation and maintenance c-osts and an extended useful life.
  • the present invention consists lof a rigid rectangular frame carrying an anti-dazzling screen constituted of a plate of plastic material, as for instance polyester resin reinforced with glass bers, having suitable opaque characteristics.
  • the screen is constituted by a plate -of polyester resin reinforced with glass bers and polyamide threads.
  • the screen is preferably provided with undulations. Particular advantages may be obtained when these undulations have a rectilinear path, running in horizontal sense. Panels of this configuration installed on the median strip of a two-directional road do not give rise to any reflection of the lights of the headlights of vehicles against the latter or against the following vehicles travelling in the same direction. Moreover, the undulations also have the task of discharging, on the vertical elements of the frame, the stresses exerted by the wind on the screen, and thus reduce the -bending stresses on the horizontal elements of the frame.
  • the panel is preferably installed in conjunction with the posts supporting the usual guard-rails.
  • vIts height is such as to prevent dazzling by the vehicles travelling in the opposite direction.
  • the upper horizontal element of the frame is at a level not less than 1.10 m. from the ground and the lower horizontal element of the frame may be approximately at the level of the guard-rail.
  • the panel is secured to the ground by means of posts of suitable height, or the vertical elements of the frame are prolonged for a length which will place the screen at suitable height.
  • the frame consists of particular metallic units having a structural sectional shape in the form of a rectangular box.
  • the greater sides of the rectangle are disposed in the foregoing objects and other be apparent to those skilled in the are set forth in the following speciare illustrated in the accompanying a basic embodiment of the present of the panel assembled on a view of the means for installing FIGURE 4 is a sectional detail of the lower horizontal element of the frame, taken along plane 4 4 of FIGURE 1 v
  • FIGURE 5 is a sectional detail of a vertical element of the frame, taken along plane 5-5 of FIGURE l;
  • FIGURE 6 is a detail view of a partially assembled panel
  • FIGURE 7 is a perspective and the associated gaskets.
  • the rectangular screen 1 is made of polyester resin reinforced with glass bers, illustrated in front view in FIGURE 1.
  • the screen 1 is inserted in a frame constituted by two vertical elements 2 and by two horizontal elements 3 and 4.
  • the downward prolongations of the vertical elements 2 are the extensions 5 (illustrated in detail in FIGURE 2) for fastening the panel to the guard-rail.
  • the upper corners of the panel are provided with hoodshaped angles 6 which serve to connect the vertical elements 2 with the horizontal element 3.
  • the angles are attached by any suitable means such as screws or bolts.
  • the extensions 5 are stiffened by means of struts 7 which are rigidly attached to the associated members.
  • FIGURE l illustrates the invention installed in conjunction with a pre-existing guard-rail 17 and posts 18.
  • FIGURE 2 is a detailed view of one means for assembling the invention to posts 18 which may or may not vbe ass-ociated with a guard-rail.
  • extensions 5 of the vertical elements 2 are rigidly attached to the posts 18 by means of bolts 19.
  • the horizontal elements 3 and 4 have a section approximating a rectangular box, in which the greater sides are horizontal.
  • the words horizontal and verticaL referring to the panel respectively indicate the directions parallel to and perpendicular to the roadway where the invention is installed, bearing in mind the fact that the roadway may be inclined.
  • a wall 9 extends from inside of the lbox and projects outwardly from the opening 8 towards the area of the screen, for a height wall 9 serves for view of an end of a panel and the angular member 10 thereby avoiding possible displacements or vibrations of the screen.
  • the screen 1 is provided with rectilinear horizontal undulations 15 (best seen in FIG- URES 6 and 7) which are intended to avoid the reflection of the lights of the headlights of the travelling vehicles against themselves or against the following traic.
  • the undulations also serve to prevent the flexion of the horlzontal elements of the frame due to the stresses exerted by the wind on the major surface of the screen.
  • the horizontal undulations are asymmetric and comprise two adjacent segments of different inclination.
  • the vertical elements 2 also have a section in the form of a rectangular box (see FIGURE 5).
  • the width of the elements is equal to that of the horizontal elements 3 and 4.
  • the opening, indicated by reference 12 is considerably wider than the openings 8 and is flanked by two walls 13 and 14 which are similar to the previously described walls 9. Walls 13 and 14 are disposed symmetrically with respect to the centerline of the rectangular section, and define the above mentioned opening 12.
  • the walls 13 and 14 constitute a vertical opening or channel 12, which contains the vertical margins of the screen 1. Because of the undulations 15, these openings must have a width greater than the openings 8.
  • FIGURES 3, 4, 5, and 7 illustrate the corresponding margins of the screen.
  • the gaskets may be made of the same material as the screen and must have the same prole as the screen.
  • FIGURE 7 illustrates the relative positioning of the gaskets to the screen.
  • the gaskets are shown in an installed position in FIG- URES 3, 4 and 5. There are a sufficient number of gaskets installed to prevent the screen from loosely moving within the channel 12.
  • a rst pair of gaskets enclosing the screen may have a width which is slightly smaller than the height of the channel 12.
  • a second pair of gaskets may also be disposed between the first gaskets and the walls 13 and 14 of the channel and may have a greater width in order to increase the stability of the anchorage and to facilitate the removal of the screen from the installed panel, as it is hereinafter explained.
  • the particular system for fastening the screen to the horizontal elements 3 and 4 has an advantage of facilitating the removal and the replacement of the screen 1, thus reducing the cost of this operation.
  • the invention may be disassembled by removing the two hood-shaped angles 6, loosening the angles 10 and removing the element 3.
  • the vertical elastic gaskets 16 may be removed either separately, horizontally from channel 12 or together with the screen 1 vertically from the top of the frame.
  • the screen may be replaced with another screen by carrying out the same operations in inverse order.
  • the screen 1 has suitable opaque characteristics. This is intended to mean that a certain amount of light Afrom the headlights of oncoming vehicles will be absorbed by the screen.
  • a panel for anti-dazzling barriers for road use comprising a rigid rectangular frame having horizontal and vertical elements, an anti-dazzling screen mounted in said frame, a lower portion of said vertical elements of said frame extending beyond said screen to be anchored to means fixed into the ground, said screen comprising a plate having suitable opaque characteristics, preferably of polyester resin reinforced with glass fibers, said plate of plastic material being provided with a plurality of rectilinear undulations along a horizontal plane, said frame elements -having a section in the form of a substantially rectangular box having greater and minor sides, the greater sides of said rectangle being disposed in the sense of the panel thickness, one of said greater sides of each said element having a continuous opening therein, the opening in the greater sides of the section of said horizontal elements having a width less than the height of said undulations in said plate, said elements being assembled with said openings being inwardly directed to provide means for containing and fastening the screen therein, a wall member secured in and to one side of said opening of each said horizontal element of the frame, one edge of said wall

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
  • Overhead Projectors And Projection Screens (AREA)
US439677A 1964-03-18 1965-03-15 Anti-dazzling panel Expired - Lifetime US3322400A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT602264 1964-03-18

Publications (1)

Publication Number Publication Date
US3322400A true US3322400A (en) 1967-05-30

Family

ID=11120876

Family Applications (1)

Application Number Title Priority Date Filing Date
US439677A Expired - Lifetime US3322400A (en) 1964-03-18 1965-03-15 Anti-dazzling panel

Country Status (8)

Country Link
US (1) US3322400A (da)
AT (1) AT257675B (da)
BE (1) BE660933A (da)
CH (1) CH403826A (da)
DE (1) DE1534547A1 (da)
FR (1) FR1426706A (da)
GB (1) GB1055341A (da)
NL (1) NL6502605A (da)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3388892A (en) * 1966-06-15 1968-06-18 Anchor Post Prod Guardrail system
CN116043737A (zh) * 2023-02-02 2023-05-02 广东安达交通工程有限公司 一种公路用防眩光装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5054954A (en) * 1989-03-16 1991-10-08 International Barrier Corporation Roadway barrier

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1130287A (en) * 1914-10-19 1915-03-02 John Horvath Portable fence.
DE671339C (de) * 1936-04-21 1939-02-04 Kurt Fleischer Eckverbindung fuer Fruehbeetfensterrahmen
US2336999A (en) * 1942-02-13 1943-12-14 James F Peele Formed metal door
US2589517A (en) * 1950-03-22 1952-03-18 Otto E Stelzer Mounting for glass panels
US2723107A (en) * 1952-12-23 1955-11-08 David S Parker Posts for fences and other structures
US2808355A (en) * 1956-06-11 1957-10-01 North American Aviation Inc Glass enclosure
US2873094A (en) * 1956-11-19 1959-02-10 Blum Louis Fence assembly with panels
US2992711A (en) * 1959-11-16 1961-07-18 Ryan Aeronautical Co Reinforcing means for attaching structural members to lightweight corrugated panels
US3037593A (en) * 1959-06-25 1962-06-05 Clifford L Webster Partition construction
FR1300536A (fr) * 1961-01-11 1962-08-03 C I M E M Di F Lli Gadani Barrière anti-éblouissante et son procédé de fabrication
AT228822B (de) * 1961-12-29 1963-08-12 Hans Ing Rieger Aus einzelnen Feldern zusammensetzbarer Blendschutzzaun, insbesondere für Straßen mit geteilten Fahrbahnen

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1130287A (en) * 1914-10-19 1915-03-02 John Horvath Portable fence.
DE671339C (de) * 1936-04-21 1939-02-04 Kurt Fleischer Eckverbindung fuer Fruehbeetfensterrahmen
US2336999A (en) * 1942-02-13 1943-12-14 James F Peele Formed metal door
US2589517A (en) * 1950-03-22 1952-03-18 Otto E Stelzer Mounting for glass panels
US2723107A (en) * 1952-12-23 1955-11-08 David S Parker Posts for fences and other structures
US2808355A (en) * 1956-06-11 1957-10-01 North American Aviation Inc Glass enclosure
US2873094A (en) * 1956-11-19 1959-02-10 Blum Louis Fence assembly with panels
US3037593A (en) * 1959-06-25 1962-06-05 Clifford L Webster Partition construction
US2992711A (en) * 1959-11-16 1961-07-18 Ryan Aeronautical Co Reinforcing means for attaching structural members to lightweight corrugated panels
FR1300536A (fr) * 1961-01-11 1962-08-03 C I M E M Di F Lli Gadani Barrière anti-éblouissante et son procédé de fabrication
AT228822B (de) * 1961-12-29 1963-08-12 Hans Ing Rieger Aus einzelnen Feldern zusammensetzbarer Blendschutzzaun, insbesondere für Straßen mit geteilten Fahrbahnen

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3388892A (en) * 1966-06-15 1968-06-18 Anchor Post Prod Guardrail system
CN116043737A (zh) * 2023-02-02 2023-05-02 广东安达交通工程有限公司 一种公路用防眩光装置
CN116043737B (zh) * 2023-02-02 2023-11-14 广东安达交通工程有限公司 一种公路用防眩光装置

Also Published As

Publication number Publication date
FR1426706A (fr) 1966-01-28
DE1534547A1 (de) 1969-09-04
GB1055341A (en) 1967-01-18
CH403826A (it) 1965-12-15
AT257675B (de) 1967-10-25
NL6502605A (da) 1965-09-20
BE660933A (da) 1965-07-01

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