EP1014248A2 - Volant de sécurité amélioré - Google Patents

Volant de sécurité amélioré Download PDF

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Publication number
EP1014248A2
EP1014248A2 EP99125016A EP99125016A EP1014248A2 EP 1014248 A2 EP1014248 A2 EP 1014248A2 EP 99125016 A EP99125016 A EP 99125016A EP 99125016 A EP99125016 A EP 99125016A EP 1014248 A2 EP1014248 A2 EP 1014248A2
Authority
EP
European Patent Office
Prior art keywords
wheel
hand
improved safety
spokes
safety hand
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.)
Ceased
Application number
EP99125016A
Other languages
German (de)
English (en)
Other versions
EP1014248A3 (fr
Inventor
Cipriano Marini
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.)
Marini Cipriano Srl
Original Assignee
Marini Cipriano Srl
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 Marini Cipriano Srl filed Critical Marini Cipriano Srl
Publication of EP1014248A2 publication Critical patent/EP1014248A2/fr
Publication of EP1014248A3 publication Critical patent/EP1014248A3/fr
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
    • G05G1/08—Controlling members for hand actuation by rotary movement, e.g. hand wheels
    • G05G1/10—Details, e.g. of discs, knobs, wheels or handles

Definitions

  • the present invention relates to an improved safety hand-wheel.
  • the above mentioned mechanisms can be either manually or automatically operated.
  • a manual driving device both in a case in which it represents the sole driving means, and in the case in which it replaces an emergency driving means, is conventionally constituted by suitably contoured hand-wheels.
  • the gripping cannot be considered an anatomic gripping, i.e. the spokes included in prior hand-wheels and the annular perimeter of said prior hand-wheels cannot be easily used.
  • a further drawback is that the mentioned prior hand-wheels require a lot of welding operations with a consequent presence of a lot of welded regions.
  • the main object of the present invention is to overcome the above mentioned drawbacks affecting prior operating hand-wheels.
  • the invention provides an improved safety hand-wheel which can be made at low cost and can be easily and safely operated.
  • the subject hand-wheel is very reliable in operation and, accordingly, it can be used in a lot of demanding applications.
  • an improved safety hand-wheel comprising a contoured annular perimeter, and including a plurality of angularly equispaced spokes, which have an anatomic shape, the overall hand-wheel being fully made as a single piece.
  • the improved safety hand-wheel according to the invention is characterized by the characterizing features disclosed in Claim 1.
  • the improved safety hand-wheel according to the invention provides the following advantages.
  • the operator can be properly handle the hand-wheel under any operating conditions.
  • the subject hand-wheel can be made by making methods which are much simpler than prior similar hand-wheel making processes.
  • the operating reliability and time duration of the subject hand-wheel are much greater than those of prior hand-wheels, and this mainly owing to the single-piece construction of the inventive hand-wheel.
  • the improved safety hand-wheel 1 is provided with an annular perimeter 2, from which advantageously extends toward a central region 4 five spokes 3 which are angularly equispaced from one another.
  • the central region 4 defines moreover, at the geometrical center of the hand-wheel 1, a square cross-section inlet 5 for mounting said hand-wheel on a suitable driving rod element, not specifically shown in the figures.
  • the spokes 3 connecting the annular perimeter 2 to the central region 4 defines five openings 6, allowing the hand-wheel 1 to be easily gripped, independently from the angular position of said hand-wheel.
  • spokes 3 and annular perimeter 2 are provided with a slightly crowned outer surface.
  • each opening 6 will have a perimetrical anatomic contour which can be easily gripped, owing to the provision of the mentioned crowned surfaces 7.
  • the overall hand-wheel 1 is made as a single piece, by any suitable molding operation.
  • the hand-wheel 10 is provided, on its annular perimeter 12, with a plurality of seats or recesses 11, which are preferably arranged by sets or groups, at each said opening 16.
  • the mentioned seats or recesses 11 define five sets or groups of four equispaced elements, each seat 11 of each group being equispaced from the other seats.
  • the hand-wheel 1, 10 is suitably connected to a driving shaft for operating any mechanisms to be applied to several different systems to be operated under safety conditions, the specific anatomic configuration of the hand-wheel and the strength deriving from its integral construction providing said hand-wheel with very good reliability and safety properties.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Control Devices (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Emergency Lowering Means (AREA)
EP99125016A 1998-12-21 1999-12-15 Volant de sécurité amélioré Ceased EP1014248A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI980819 IT244451Y1 (it) 1998-12-21 1998-12-21 Volantino perfezionato di sicurezza
ITMI980819U 1998-12-21

Publications (2)

Publication Number Publication Date
EP1014248A2 true EP1014248A2 (fr) 2000-06-28
EP1014248A3 EP1014248A3 (fr) 2002-11-13

Family

ID=11379818

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99125016A Ceased EP1014248A3 (fr) 1998-12-21 1999-12-15 Volant de sécurité amélioré

Country Status (2)

Country Link
EP (1) EP1014248A3 (fr)
IT (1) IT244451Y1 (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE540940A (fr) *
DE886552C (de) * 1943-02-16 1953-08-13 Norddeutsche Homogenholz Ges M Griffscheibe
US2523458A (en) * 1947-05-12 1950-09-26 Vogel Ole Valve wheel marker
FR1590287A (fr) * 1968-10-29 1970-04-13
DE3447521A1 (de) * 1984-12-27 1986-07-10 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., 8000 München Scheibenhandrad
US5085098A (en) * 1990-12-24 1992-02-04 Buckley Larry J Steering wheel cover having a prayer counter mechanism thereon

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Also Published As

Publication number Publication date
ITMI980819U1 (it) 2000-06-21
IT244451Y1 (it) 2002-03-11
EP1014248A3 (fr) 2002-11-13

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