EP0348723A1 - Rotierendes Schild - Google Patents

Rotierendes Schild Download PDF

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Publication number
EP0348723A1
EP0348723A1 EP89110615A EP89110615A EP0348723A1 EP 0348723 A1 EP0348723 A1 EP 0348723A1 EP 89110615 A EP89110615 A EP 89110615A EP 89110615 A EP89110615 A EP 89110615A EP 0348723 A1 EP0348723 A1 EP 0348723A1
Authority
EP
European Patent Office
Prior art keywords
shaft
knob
spring
sign
sign according
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.)
Withdrawn
Application number
EP89110615A
Other languages
English (en)
French (fr)
Inventor
Projects Uk Limited Venture
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.)
VENTURE PROJECTS UK Ltd
Original Assignee
VENTURE PROJECTS UK Ltd
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 VENTURE PROJECTS UK Ltd filed Critical VENTURE PROJECTS UK Ltd
Publication of EP0348723A1 publication Critical patent/EP0348723A1/de
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F7/00—Signs, name or number plates, letters, numerals, or symbols; Panels or boards
    • G09F7/18—Means for attaching signs, plates, panels, or boards to a supporting structure
    • G09F7/22—Means for attaching signs, plates, panels, or boards to a supporting structure for rotatably or swingably mounting, e.g. for boards adapted to be rotated by the wind

Definitions

  • THIS INVENTION relates to a rotating sign and more particularly relates to a rotating sign, such as may be used for advertising purposes, comprising an element or display panel adapted to be rotated by the wind, and a shaft supporting that display panel, the shaft itself being supported on a support structure by means of bearings to enable the shaft and the display panel to rotate relative to the support structure.
  • a typical prior-proposed sign adapted to be rotated by the wind comprises a base, which forms part of a support structure.
  • a housing, formed on the base, contains appropriate bearings, which rotatably support a vertical shaft.
  • the vertical shaft is secured to an appropriately shaped display panel which lies in a substantially vertical plane.
  • the display panel is normally provided with writing or other indicia on both sides, and typically the writing on the two opposed sides is different, in that each side of the panel carries a different message.
  • the display panel of such a rotating sign may rotate at such a high speed that it is difficult or impossible to read the messages present on the panel.
  • the sign can become unstable, particularly if the rotating panel is not perfectly balanced. This condition is exacerbated if the pedestal is on a smooth surface. In such a situation the pedestal can move laterally, and can wobble. In extreme cases the sign may fall over.
  • the present invention seeks to provide an improved rotating sign.
  • a wind powered rotating sign comprising a support incorporating a housing containing bearings rotatably supporting a shaft for rotation about a substantially vertical axis, and a display panel carried by the shaft lying in a substantially vertical plane for rotation about said vertical axis, wherein means are provided for retarding the rotation of the display panel.
  • the means for retarding the display panel comprise means for urging an element into contact with said shaft to exert a frictional effect thereon.
  • the means to urge said element into contact with the shaft incorporate a spring adapted to bias the said element into contact with the shaft.
  • the spring may be a conventional helical wire spring or any other equivalent resilient component.
  • Preferably means are provided to adjust the biassing effect provided by the spring.
  • the means adapted to adjust the bias provided by the spring comprise a knob incorporating a threaded shaft passing through a threaded bore in said housing, said knob incorporating a blind bore containing said spring and said element.
  • a locknut is provided on said threaded shank to lock said threaded shank in any desired position.
  • the dimension of the blind bore, the spring and the element are such that the knob may be moved to such a position that the spring is fully compressed so that direct pressure can be applied from the knob to the element.
  • said urging means comprise a knob having a threaded shank engaged in a threaded bore, said shank carrying said element, so that rotation of the knob urges the element into contact with the shaft.
  • Figure 1 illustrates a rotating sign 1 in accordance with the invention.
  • the sign is a free-standing sign which incorporates, as a base, a pedestal 2, which is substantially circular in plan and of dome-­configuration.
  • a tubular housing 3, defining a vertical axis, is secured to the top of the base 2 in a central position.
  • Contained within the housing 3 are bearings, which support a shaft, so that the shaft can rotate about a vertical axis.
  • the top of the shaft is secured to the lower part of a rotating display panel 4.
  • the panel 4 is of conventional design, and is such that the sign will rotate, in a clockwise direction, as generally indicated by the arrows 5, whenever the wind blows. As thus far described the sign is conventional.
  • the sign illustrated in Figure 1 is, however, provided with a manually operable knob 6 which controls means which provide a braking or retarding effect on the shaft, thus preventing the panel 4 from rotating too fast.
  • Figure 2 illustrates that the base 2 is formed, in the region illustrated, of a single curved sheet of metal or the like.
  • the tubular housing 3 has a lower portion which passes through an aperture in the top of the base 2, and the housing 3 is retained in position by means of welds 7.
  • the shaft 8 upon which the panel 4 is mounted passes axially through the tubular housing 3, and is retained by an upper ball race 9 and a lower ball race 9′.
  • the upper ball race guides the shaft vertically and acts laterally, to achieve minimal friction as well as supporting the shaft.
  • the lower ball race 9′ merely serves to provide vertical guidance and lateral support to the shaft, with minimal friction.
  • the upper end of the shaft 8 is welded to a holder 10 by means of welds 11.
  • the holder is in turn welded by means of welds 12 to a horizontal supporting flange 13 which actually supports the panel 4. Part of the flange 13 can be seen in Figure 1.
  • the holder 10 may be of any convenient design and serves to provide a sufficiently strong connection between the shaft 8 and the flange 13.
  • the lower end of the shaft 8 receives a screw 14 which retains a washer 15 provided to prevent the shaft being lifted upwardly through the ball races 9 and 9′.
  • the radius of the outer part of the washer is thus greater than the radius of the shaft.
  • a radially extending threaded bore 16 Received threadedly within the bore 16 is the threaded shank 17 of the knob 6. Mounted on the threaded shank 17, on the exterior of the housing, is a conventional lock nut 18.
  • the shank 17 is provided with an axial blind bore, and located in the blind bore are a compression spring 19 and one end of a cylindrical rubbing piece 20.
  • the spring may be formed of metal or may be formed from a urethane plastic element which has similar properties to that of a conventional spring. 'The rubbing piece may be formed of hard plastic or brass.
  • the spring 19 serves to bias the rubbing piece 20 into contact with the exterior of the shaft 8 at a position intermediate the ball races 9 and 9′.
  • the rubbing piece thus exerts a frictional effect when the shaft rotates, tending to retard rotation of the panel 4.
  • knob 6 may be turned so far that the spring 19 is fully compressed and then further rotation of the knob 6 will urge the rubbing piece 20 against the shaft 8 with a very significant force, since then the rubbing piece 20 will effectively be directly mechanically connected to the knob 6.
  • one function of the spring is to take up any wear experienced by the rubbing piece 20.
  • the spring will still bias the rubbing piece into contact with the exterior of the shaft 8.
  • the lock nut 18 is provided to enable the knob 6 to be readily locked in any desired position.
  • the exterior of the lock nut 18 and the exterior of the knob 6 may both be knurled, or one or both may be of hexagonal form to be rotated by means of a spanner.
  • the knob 6 will be adjusted, with regard to the prevailing wind conditions, so that the rubbing piece 20 provides a sufficient frictional effect on the shaft 8 to ensure that the sign will only rotate at a suitable speed. If the wind is only light, the knob may be rotated significantly in the anti-clockwise direction, so that the rubbing piece 20 only exerts a very light frictional effect on the shaft 8. In very high wind conditions, however, the knob 6 will be rotated fully in the clockwise direction, so that the spring 19 is fully compressed, thus enabling the full pressure applied by the knob 6 to be transferred directly to the shaft 8 by means of the rubbing piece 20. This pressure may be sufficient to even prevent the shaft 8 from turning at all.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
EP89110615A 1988-06-25 1989-06-12 Rotierendes Schild Withdrawn EP0348723A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8815187 1988-06-25
GB888815187A GB8815187D0 (en) 1988-06-25 1988-06-25 Speed controller for atmospheric wind rotating sign

Publications (1)

Publication Number Publication Date
EP0348723A1 true EP0348723A1 (de) 1990-01-03

Family

ID=10639382

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89110615A Withdrawn EP0348723A1 (de) 1988-06-25 1989-06-12 Rotierendes Schild

Country Status (2)

Country Link
EP (1) EP0348723A1 (de)
GB (1) GB8815187D0 (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2657714A1 (fr) * 1990-01-31 1991-08-02 Baron Cyrille Enseigne tournant autour d'un axe de rotation sous l'effet du deplacement de l'air environnant.
WO1991012605A1 (en) * 1990-02-16 1991-08-22 A.C. Edwards Plc Wind-driven spinning signs
FR2668635A1 (fr) * 1990-10-26 1992-04-30 Dehu Daniel Panneau publicitaire tournant.
FR2737331A1 (fr) * 1995-07-26 1997-01-31 Jean Francois Chaput Dispositif d'affichage avec panneau mobile
WO2004070687A1 (en) * 2003-02-07 2004-08-19 Phillips Jonathan James Fergus Rotatable sign
US7685754B1 (en) 2008-08-04 2010-03-30 Rodrigo Torres Storm and hurricane signage
CN103606336A (zh) * 2013-10-28 2014-02-26 吕剑锋 一种防强风广告牌装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE577816C (de) * 1932-06-04 1933-06-06 Hans Mehl Durch Windkraft in Drehung versetztes mehrseitiges oder zylindrisches Schild
GB939879A (en) * 1961-05-13 1963-10-16 Diego Zamora Conesa Y Cai S R Improvements in rotary advertising posters
EP0152210A1 (de) * 1984-01-27 1985-08-21 Hans Georg Hannemann Lageranordung
EP0243345A1 (de) * 1986-04-25 1987-10-28 Esselte Pendaflex Gesellschaft m.b.H. Aufsteller zur beweglichen Anbringung von Reklameträgern

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE577816C (de) * 1932-06-04 1933-06-06 Hans Mehl Durch Windkraft in Drehung versetztes mehrseitiges oder zylindrisches Schild
GB939879A (en) * 1961-05-13 1963-10-16 Diego Zamora Conesa Y Cai S R Improvements in rotary advertising posters
EP0152210A1 (de) * 1984-01-27 1985-08-21 Hans Georg Hannemann Lageranordung
EP0243345A1 (de) * 1986-04-25 1987-10-28 Esselte Pendaflex Gesellschaft m.b.H. Aufsteller zur beweglichen Anbringung von Reklameträgern

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2657714A1 (fr) * 1990-01-31 1991-08-02 Baron Cyrille Enseigne tournant autour d'un axe de rotation sous l'effet du deplacement de l'air environnant.
WO1991012605A1 (en) * 1990-02-16 1991-08-22 A.C. Edwards Plc Wind-driven spinning signs
FR2668635A1 (fr) * 1990-10-26 1992-04-30 Dehu Daniel Panneau publicitaire tournant.
FR2737331A1 (fr) * 1995-07-26 1997-01-31 Jean Francois Chaput Dispositif d'affichage avec panneau mobile
WO2004070687A1 (en) * 2003-02-07 2004-08-19 Phillips Jonathan James Fergus Rotatable sign
US7685754B1 (en) 2008-08-04 2010-03-30 Rodrigo Torres Storm and hurricane signage
CN103606336A (zh) * 2013-10-28 2014-02-26 吕剑锋 一种防强风广告牌装置

Also Published As

Publication number Publication date
GB8815187D0 (en) 1988-08-03

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Effective date: 19900704