EP0362025A1 - Tischtennisplatte - Google Patents

Tischtennisplatte Download PDF

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Publication number
EP0362025A1
EP0362025A1 EP89402575A EP89402575A EP0362025A1 EP 0362025 A1 EP0362025 A1 EP 0362025A1 EP 89402575 A EP89402575 A EP 89402575A EP 89402575 A EP89402575 A EP 89402575A EP 0362025 A1 EP0362025 A1 EP 0362025A1
Authority
EP
European Patent Office
Prior art keywords
panel
frame
tray according
thickness
sides
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.)
Granted
Application number
EP89402575A
Other languages
English (en)
French (fr)
Other versions
EP0362025B1 (de
Inventor
Pierre André Daniel Cornilleau
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.)
C Cornilleau Dite Ste
Cornilleau SAS
Original Assignee
C Cornilleau Dite Ste
Cornilleau SAS
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9370267&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0362025(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by C Cornilleau Dite Ste, Cornilleau SAS filed Critical C Cornilleau Dite Ste
Priority to AT89402575T priority Critical patent/ATE89981T1/de
Publication of EP0362025A1 publication Critical patent/EP0362025A1/de
Application granted granted Critical
Publication of EP0362025B1 publication Critical patent/EP0362025B1/de
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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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

  • a quality table tennis table must meet several types. First, it must offer a flat top surface.
  • the dimensions of such a tray are of the order of 140 x 150 cm, which implies using a material sufficiently rigid in itself so that it does not warp under its own weight when it rests on its feet, or to equip the underside of the tray with a stiffening frame or finally, as is most often the case, to achieve a compromise between the two.
  • the plate must also allow a good rebound of the ball. This rebound depends on many factors which are due in particular to the surface condition of the table top (more or less tender nature of the coating, its roughness, etc.) and also to the mass presented by the portion of the table concerned by the impact. In fact, the denser a plateau, the better the rebound for a given ball.
  • the plate is not subject to deformation because the expansions of the two metal sheets are substantially identical, the intermediate plastic material transmitting heat well, this plate does not have the qualities of density and stiffness on the surface required to ensure an acceptable rebound of the ball.
  • Another metal table is also known in which an upper sheet forming a playing surface is associated with a lower sheet which has stamped shapes in the form of cups intended to stiffen it. The upper sheet is linked to the outside face of the cup bottoms by an agent sandwiched between them, this agent being a poor conductor of heat and sensitive to humidity.
  • the dimensional stability of such a table is not satisfactory and, moreover, it has heterogeneities in its thickness such that the qualities of the rebound are very variable depending on the location of the impact of the ball.
  • the price of this table places it at the top of the range of outdoor tables, which are already more expensive than indoor tables.
  • the present invention intends to propose a table tennis table which optimally meets the requirements required for a good quality mobile table which can remain without any particular precautions outside.
  • the subject of the invention is therefore a tray for a table tennis table, intended to be associated with a base and constituted by a thin panel and by a rigid metallic structure in the form of a frame at least. partial and fixed to one of the faces of the panel along at least three of its sides by means of a flexible adhesive material.
  • a thin panel that is to say less than 15 millimeters has the advantage of being light compared to known panels. It involves associating it with a stiffening structure on the one hand to make it flat, because in the dimensions considered, its flatness cannot be guaranteed to be produced, and on the other hand to keep it flat.
  • a flexible adhesive as a fixing means allows the two elements to play relative to each other without creating deformation, despite the small thickness of the panel.
  • the structure is a complete frame, the crosspiece located under the edge of the panel forming the middle part of the standing table, is of reduced thickness.
  • FIG 1 there is shown a corner of the panel 1 according to the invention and more specifically the corner that forms one of the side edges 2 of the table with the edge 3 of the panel which, the table assembled, is in the middle zone of this table, substantially under the net.
  • the corner of the panel is shown turned over so that we can see its association with the frame 4 which, in its entirety, forms a frame associated with the panel by being glued to its underside 5 by means of a double adhesive tape. side 6 inserted between the frame 4 and the face 5.
  • the panel 1 is made of a material known in itself which consists of a core comprising a plurality of superimposed sheets of kraft paper impregnated with a phenolic resin and two cover sheets of kraft paper, also dyed in the mass and impregnated with a melamine resin, the whole being hardened or polymerized under pressure to form a laminated panel.
  • This product has many properties, some of which are interesting for its use as a table tennis table. First of all it is a dense and stiff product which has a sufficiently polished surface to give a ball a good quality rebound even under a small thickness (of the order of 6 millimeters). The quality of the rebound will be all the better as the thickness is increased. It is therefore possible to have, in small thicknesses, a light panel providing an acceptable rebound.
  • this product is completely chemically inert and has very high dimensional stability with regard to variations in humidity and temperature.
  • the means of making such a panel planar resides in a metal frame-shaped frame.
  • This frame can be obtained by folding sheet metal, or be tubular.
  • the upright 7 of the frame visible in the figure is in the form of a sheet metal box folded in C.
  • the frame can be complete, that is to say have four sides, or open then comprising only three sides, the side missing being that located to the right of edge 3 of the panel.
  • the classic binding of a reinforcement under a panel implies the implementation of particular means which must not protrude above the playing surface, which imposes a significant thickness of the panel to have a sufficient anchoring length for the screws fixing and consequently increases the weight of the panel.
  • the expansion coefficients of the panel and of the frame are different, a variation in temperature causes warping of the plate rigidly fixed to the frame.
  • the fixing according to the invention by double-sided adhesive tape 6 made it possible to remove these obstacles. Indeed, the quality of the fixing no longer depends on the thickness of the panel which can be as thin as six millimeters. It is understood that, in this respect, the thinner the panel and the less the efforts to develop to keep it flat.
  • the adhesive attachment therefore makes it possible to lighten the support structure and the weight gain takes place on the two components, panel and structure.
  • the adhesive tape is a flexible and deformable material which allows a slight relative movement between panel and structure which is favorable to compensate for the effects of expansion or retraction of different amplitudes between structure and panel.
  • the frame forming the structure of stiffening of the panel can be closed on its fourth side (to the right of the edge 3) by a cross member 9 of thickness thinner than the thickness of the other uprights.
  • this crosspiece is connected to the panel by an adhesive tape 6 and to the ends of the uprights of the frame (for example by means of rivets 10 coupling it to a wing in return 11 of the upright).
  • the cross member 9 is set back relative to the edge 3 because the lateral uprights such as 7 are shortened to allow the pinching on the edge of the plate of the net support members.
  • the cross member 9 is of reduced thickness so as not to prevent the folding down of some of the feet articulated to the frame so that they extend parallel to the plate in the folded position.
  • the arrangements of articulations of the base to the frame of the tray are known in themselves.
  • FIGS 2 to 4 show an alternative embodiment of Figure 1 in which we find some of the elements already described with the same references.
  • the lateral upright 7 of the frame visible in this figure has a return 12 instead of the tab 11.
  • This return is connected to the end cross member of the frame by a secondary longitudinal upright 13 parallel to the upright 7.
  • the return 12 as the secondary upright 13 will also be fixed to the panel 1 by a double-sided adhesive tape 6.
  • the cross-member 9 is in this case fixed by riveting to the return 12 and to the panel by an adhesive tape 6.
  • FIG. 4 shows a foot 14 articulated on the secondary upright 13 of the frame folded down along the internal face 5 of the panel 1 and parallel to the latter thanks to the low height of the cross-member 9.
  • an adhesive can be used which retains a certain flexibility in the final state. They may, for example, be adhesives known commercially under the name of LOCTITE 326 or 380 (cyanoacrylate adhesive) or SILICOMET.
  • the plate can be made of any synthetic material which can be manufactured in a thin, rot-proof plate and having mechanical surface qualities capable of obtaining an acceptable rebound for a table tennis ball. These include asbestos concrete, loaded resins, laminated structures ...
EP89402575A 1988-09-22 1989-09-20 Tischtennisplatte Revoked EP0362025B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89402575T ATE89981T1 (de) 1988-09-22 1989-09-20 Tischtennisplatte.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8812387 1988-09-22
FR8812387A FR2636540B1 (fr) 1988-09-22 1988-09-22 Plateau de table de tennis de table

Publications (2)

Publication Number Publication Date
EP0362025A1 true EP0362025A1 (de) 1990-04-04
EP0362025B1 EP0362025B1 (de) 1993-06-02

Family

ID=9370267

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89402575A Revoked EP0362025B1 (de) 1988-09-22 1989-09-20 Tischtennisplatte

Country Status (5)

Country Link
EP (1) EP0362025B1 (de)
AT (1) ATE89981T1 (de)
DE (2) DE362025T1 (de)
ES (1) ES2017449T3 (de)
FR (1) FR2636540B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4325418A1 (de) * 1993-07-29 1995-02-02 Sp Verwaltungs Gmbh Anordnung zur Befestigung einer wetterfesten Tischtennisplatte

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US3957268A (en) * 1975-03-26 1976-05-18 Diversified Products Corporation Method and apparatus for assembly of table tennis table
DE3139222A1 (de) * 1981-09-14 1983-03-31 Peter Wolf & Sohn Kg, 6460 Gelnhausen Wetterfeste tischtennisplatte sowie verfahren und vorrichtung zu ihrer herstellug
EP0215706A1 (de) * 1985-09-04 1987-03-25 Societe Des Forges D'haironville Tischtennisplatte

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US3957268A (en) * 1975-03-26 1976-05-18 Diversified Products Corporation Method and apparatus for assembly of table tennis table
DE3139222A1 (de) * 1981-09-14 1983-03-31 Peter Wolf & Sohn Kg, 6460 Gelnhausen Wetterfeste tischtennisplatte sowie verfahren und vorrichtung zu ihrer herstellug
EP0215706A1 (de) * 1985-09-04 1987-03-25 Societe Des Forges D'haironville Tischtennisplatte

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4325418A1 (de) * 1993-07-29 1995-02-02 Sp Verwaltungs Gmbh Anordnung zur Befestigung einer wetterfesten Tischtennisplatte

Also Published As

Publication number Publication date
FR2636540A1 (fr) 1990-03-23
FR2636540B1 (fr) 1991-04-12
DE68906844D1 (de) 1993-07-08
DE68906844T2 (de) 1993-10-14
ES2017449A4 (es) 1991-02-16
ATE89981T1 (de) 1993-06-15
ES2017449T3 (es) 1993-12-01
DE362025T1 (de) 1990-12-20
EP0362025B1 (de) 1993-06-02

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