EP0215706A1 - Tischtennisplatte - Google Patents

Tischtennisplatte Download PDF

Info

Publication number
EP0215706A1
EP0215706A1 EP86401936A EP86401936A EP0215706A1 EP 0215706 A1 EP0215706 A1 EP 0215706A1 EP 86401936 A EP86401936 A EP 86401936A EP 86401936 A EP86401936 A EP 86401936A EP 0215706 A1 EP0215706 A1 EP 0215706A1
Authority
EP
European Patent Office
Prior art keywords
peripheral frame
core
tray according
rigid
rebound
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Withdrawn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
EP86401936A
Other languages
English (en)
French (fr)
Inventor
Félix Laborde
Jean-Marie Huvet
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.)
FORGES D'HAIRONVILLE Ste
Original Assignee
FORGES D'HAIRONVILLE Ste
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 FORGES D'HAIRONVILLE Ste filed Critical FORGES D'HAIRONVILLE Ste
Publication of EP0215706A1 publication Critical patent/EP0215706A1/de
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B25/00—Card tables; Tables for other games
    • A47B25/003—Card tables; Tables for other games for table tennis

Definitions

  • the present invention relates to a table top for a table tennis game.
  • the object of the invention is therefore to provide a tray which offers the same playing characteristics as the traditional material, which has both a suitable weight and mechanical strength, and which, in addition retains its properties when subjected prolonged weathering.
  • the invention provides a table tennis game board, comprising a rigid foam core of synthetic material covered on its upper face and its lower face by a metal sheet bonded to the core, with on its edges. a peripheral frame for finishing and sealing, and such that the rebound of a ping-pong ball falling from 300 mm onto the plate is between 210 and 240 mm, characterized in that, simultaneously: . the metal sheet forming the faces is a prepainted galvanized steel sheet, with a thickness of between 0.5 and 1.5 mm; and . the rigid foam forming the core has a density of between 130 and 180 kg / m3.
  • the peripheral frame comprises profiles in extruded PVC.
  • the frame comprises strips of semi-rigid foam, for example PVC.
  • the peripheral frame includes corners in molded ABS.
  • the tray which is the subject of Figures 1 and 2, where the thickness of the tray has been greatly exaggerated to facilitate the presentation, comprises a core 1 of rigid foam of synthetic material which has been formed between an upper sheet 2 and a lower sheet 3 and adheres thereto.
  • the plate is provided on its edges with a peripheral frame formed of profiles 4 in extruded PVC, retained by the folded edges 5 of the sheets 2 and 3.
  • the frame is completed at the corners by corners in molded ABS.
  • the profiles 4 of extruded PVC are replaced by rods 6 of semi-rigid PVC, obtained by molding.
  • This slightly more expensive solution has two advantages: under the effect of the pressure which develops during the formation of the foam, the semi-rigid PVC deforms outwards and fills the hollow between the folded edges 5 of the sheets 2 and 3, until it forms a roughly flat and more aesthetic side surface.
  • the deformability of the semi-rigid material ensures a better seal and more surely protects against the risk of foam leakage when it is formed.
  • a first condition is the value of the rebound. This is measured by a method illustrated in Figure 4.
  • This method consists in freely dropping a table tennis ball 10 placed on a support 11 very slightly inclined, the upper end of which is level: + 300 mm relative to that of the upper face of the sample 12 whose behavior rebound must be tested.
  • the simplest method consists in using a fine horizontal blade 13 which emits a noise embodying the value of the rebound when it is touched by the ball 10. This blade is carried by a support 14.
  • N (mm) R (mm) + D (mm) D is the diameter of the ball, it is equal to 37 mm.
  • the rebound measured must be 210 to 240 mm.
  • the weight of the tray must be sufficient so that it does not risk being moved inadvertently by the action of the wind, but it must not be exaggerated to allow easy handling.
  • the mechanical resistance must also allow it to carry the weight of a person who would accidentally have to walk on the platform.
  • the density of the foam forming the core acts appreciably on the rebound: when, for thicknesses of the upper and lower sheets of 0.6 mm, the density of the foam varies from 90 to 140 kg / m3, the rebound varies from 210 to 230 mm.
  • the increase in density also increases the mechanical resistance of the assembly, by opposing the deformation of the sheets.
  • the thickness of foam has an opposite direction: if this thickness goes from 17 mm to 29 mm, the thickness of the sheets being 0.6 mm, the rebound decreases from 230 mm to 224 mm.
  • a polyurethane foam is preferred which improves rebound.
  • An increase in the thickness of the sheets has a favorable influence on the rebound: when the thickness of the upper sheet changes from 0.6 to 1 mm, the core being formed from a foam with a density of 140 kg / cm2 and l he overall thickness of the plate being fixed at 18 mm, the rebound goes from 230 to 234.
  • an increase in thickness of the lower sheet gives a similar result, although less pronounced.
  • the peripheral frame 4,6 which surrounds the plate is put in place before the formation of the foam, and ensures the confinement of the latter during its expansion, in cooperation with the sheets. It therefore adheres to the foam in the finished product.
  • the corners 7 are placed in the same way and have the same role.
  • peripheral frame and the corners effectively prevent water and moisture from entering the foam, such penetration could affect the life of the assembly.
  • they constitute an aesthetic finish of the tray.
  • the corners 7 have a rounded shape which eliminates the risk of injury.

Landscapes

  • Laminated Bodies (AREA)
EP86401936A 1985-09-04 1986-09-03 Tischtennisplatte Withdrawn EP0215706A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8513106 1985-09-04
FR8513106A FR2586573B1 (fr) 1985-09-04 1985-09-04 Plateau pour jeu de tennis de table

Publications (1)

Publication Number Publication Date
EP0215706A1 true EP0215706A1 (de) 1987-03-25

Family

ID=9322606

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86401936A Withdrawn EP0215706A1 (de) 1985-09-04 1986-09-03 Tischtennisplatte

Country Status (2)

Country Link
EP (1) EP0215706A1 (de)
FR (1) FR2586573B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2636540A1 (fr) * 1988-09-22 1990-03-23 Cornilleau C Plateau de table de tennis de table

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112933561A (zh) * 2021-03-05 2021-06-11 沈阳体育学院 一种智能型乒乓球弹跳性及碰撞强度的检测装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3235040A (en) * 1963-05-03 1966-02-15 Dow Chemical Co Sandwich panel structure with edge trim
US3386218A (en) * 1966-06-08 1968-06-04 Elwin G Smith & Co Inc Building panel with ribbed sealing element between overlapping edges
DE1303270B (de) * 1964-09-19 1973-01-25
FR2240029A1 (en) * 1973-08-06 1975-03-07 Lemke Fabrik Sportartikel Expo Layered table for table-tennis - comprising a covering surface and a core of foamed plastic filler
US4320614A (en) * 1980-01-07 1982-03-23 General Electric Company Panel assembly for sheet metal panels having double wall construction corners

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR970477A (fr) * 1948-08-10 1951-01-04 Table de ping-pong
DE2455102A1 (de) * 1974-11-21 1976-08-12 Rudolf Neumann Auf einer eisenblechplatte, durch rahmen mit mittelverstrebung, aufgeschraubten oder vernieteten platte

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3235040A (en) * 1963-05-03 1966-02-15 Dow Chemical Co Sandwich panel structure with edge trim
DE1303270B (de) * 1964-09-19 1973-01-25
US3386218A (en) * 1966-06-08 1968-06-04 Elwin G Smith & Co Inc Building panel with ribbed sealing element between overlapping edges
FR2240029A1 (en) * 1973-08-06 1975-03-07 Lemke Fabrik Sportartikel Expo Layered table for table-tennis - comprising a covering surface and a core of foamed plastic filler
US4320614A (en) * 1980-01-07 1982-03-23 General Electric Company Panel assembly for sheet metal panels having double wall construction corners

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2636540A1 (fr) * 1988-09-22 1990-03-23 Cornilleau C Plateau de table de tennis de table
EP0362025A1 (de) * 1988-09-22 1990-04-04 C. Cornilleau, Société dite: Tischtennisplatte

Also Published As

Publication number Publication date
FR2586573A1 (fr) 1987-03-06
FR2586573B1 (fr) 1988-12-16

Similar Documents

Publication Publication Date Title
EP0100701B1 (de) Schall- und wärmedämmende Mehrfachverglasung
FR2515524A1 (fr) Ski a armature pour descente
CH625465A5 (de)
FR2461611A1 (fr) Tableau de bord
EP0215706A1 (de) Tischtennisplatte
FR2503035A1 (fr) Construction de stratifies pour moulures et leur procede de fabrication
CA2041138A1 (fr) Procede de fabrication d'une feuille d'un materiau composite comprenant une plaque de polymethacrylate de methyle coulee reunie a une couche support thermoplastique et produits obtenus
CA2594099C (fr) Poutres, colonnes, murs et dalles en bois arme
CH642420A5 (fr) Paroi, notamment de rebond pour jeux de balle.
EP1082977B1 (de) Ski, oder andere Gleitbretter mit verstärkten und separaten Seitenwangen und dazugehöriges Verfahren
FR2722811A1 (fr) Panneau composite d'isolation thermique et acoustique et procede de fabrication de tels panneaux
WO1986000041A1 (fr) Procede de fabrication de bois plastifie
EP0558009A1 (de) Verfahren zur Herstellung eines Skis
CA2780416C (fr) Noyau acoustique integrable a une structure
BE1003764A4 (fr) Couche de surface d'un article pour l'habitacle.
FR2471464A1 (fr) Dispositif de revetement mural et son procede de pose
JPH09216269A (ja) 共押出建築外装化粧材
FR2681884A1 (fr) Procede pour la realisation d'un revetement de sol, a usage sportif notamment et nouveau type de revetement de sol ainsi realise.
WO2010094861A1 (fr) Planche pour la pratique du saut acrobatique sur trampoline
FR2670122A1 (fr) Perfectionnements aux tables de jeux et plus specialement aux tables destinees a la pratique du tennis de table ou ping-pong.
BE537792A (de)
JPH09216268A (ja) 共押出建築外装化粧材
FR2687922A1 (fr) Procede de fabrication d'un plateau pour table de jeu du type table de ping-pong.
FR2883255A1 (fr) Masse de flottabilite pour embarcation et embarcation incluant une telle masse de flottabilite
FR2695809A1 (fr) Semelle pour tout type de chaussures, son procédé de réalisation et son application.

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

17P Request for examination filed

Effective date: 19870715

17Q First examination report despatched

Effective date: 19880919

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19890331

RIN1 Information on inventor provided before grant (corrected)

Inventor name: LABORDE, FELIX

Inventor name: HUVET, JEAN-MARIE