FR2647020A1 - Telescopic device for verifying the central height of a tennis net - Google Patents

Telescopic device for verifying the central height of a tennis net Download PDF

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Publication number
FR2647020A1
FR2647020A1 FR8906623A FR8906623A FR2647020A1 FR 2647020 A1 FR2647020 A1 FR 2647020A1 FR 8906623 A FR8906623 A FR 8906623A FR 8906623 A FR8906623 A FR 8906623A FR 2647020 A1 FR2647020 A1 FR 2647020A1
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FR
France
Prior art keywords
tennis net
central height
telescopic device
central
tube
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
FR8906623A
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French (fr)
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FR2647020B1 (en
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Individual
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Individual
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Publication date
Application filed by Individual filed Critical Individual
Priority to FR8906623A priority Critical patent/FR2647020B1/en
Publication of FR2647020A1 publication Critical patent/FR2647020A1/en
Application granted granted Critical
Publication of FR2647020B1 publication Critical patent/FR2647020B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B61/00—Tennis nets or accessories for tennis or like games, e.g. volley-ball
    • A63B61/04—Straining or adjusting devices for nets, e.g. centre strainers, single-double adjusters, net height meters

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Tents Or Canopies (AREA)

Abstract

The invention relates to a telescopic device making it possible to verify the central height of a tennis net. It consists of an upper tube 1 nested in a central tube 2 which itself is nested in a lower tube 3. The three tubes cannot become detached from one another. They are each of equal length. When they are drawn out to their maximum extent, they have a length of 91.5 centimetres. The device according to the invention is intended particularly for tennis players who wish to verify the central height of a tennis net.

Description

DESCRIPTION
La présente invention concerne un dispositif télescopique pour vérifier la hauteur centrale d'un filet de tennis.DESCRIPTION
The present invention relates to a telescopic device for checking the central height of a tennis net.

Cette hauteur, qui est officiellement de 91,5 centimètres, est traditionnellement vérifiée par un objet vertical d'un seul tenant d'une longueur égale à cette hauteur. This height, which is officially 91.5 centimeters, is traditionally verified by a vertical object in one piece with a length equal to this height.

Le dispositif selon l'invention consiste à réduire la longueur de cet objet afin de diminuer son encombrement lorsqu'il ne sert pas. The device according to the invention consists in reducing the length of this object in order to reduce its size when it is not used.

Le dispositif comporte trois tubes d'égale longueur, s'embottant les uns dans les autres, sans se débotter. The device comprises three tubes of equal length, nesting into each other, without falling out.


e
Lorsque les trois tubes sont étirés au maximum le dispositif a un lon- gueur de 91,5 centimètres.
e
When the three tubes are stretched to the maximum, the device is 91.5 cm long.

Le dispositif peut être réalisé en matière métallique ou en matière plastique rigide. The device can be made of metallic material or rigid plastic.

La figure 1 représente en coupe le dispositif selon l'invention. Figure 1 shows in section the device according to the invention.

Le dispositif représenté sur la figure 1 comporte un tube supérieur (1) , un tube central (2) et un tube inférieur (3). The device shown in Figure 1 comprises an upper tube (1), a central tube (2) and a lower tube (3).

Le tube supérieur (1) s'embatte dans le tube central (2), qui luimême, s'embotte dans le tube inférieur (3). The upper tube (1) engages in the central tube (2), which itself embeds in the lower tube (3).

Les trois tubes ne peuvent pas se débotter. The three tubes cannot be removed.

Le dispositif selon l'invention est particulièrement destiné aux joueurs de tennis désirant vérifier la hauteur centrale d'un filet de tennis.  The device according to the invention is particularly intended for tennis players wishing to check the central height of a tennis net.

Claims (5)

REVENDICATIONS 1) Dispositif télescopique pour vérifier la hauteur centrale d'un filet de tennis caractérisé en ce qu'il comporte un tube supérieur (1) s'embouant dans un tube central (2), lui-même s'emboltant dans un tube inférieur (3). 1) Telescopic device for checking the central height of a tennis net, characterized in that it comprises an upper tube (1) molding in a central tube (2), itself molding in a lower tube ( 3). 2) Dispositif selon la revendication 1 caractérisé en ce que les trois tubes ne peuvent pas se débouter. 2) Device according to claim 1 characterized in that the three tubes cannot be routed. 3) Dispositif selon la revendication 1 ou la revendication 2 caractérisé en ce que la longueur des trois tubes soit égale. 3) Device according to claim 1 or claim 2 characterized in that the length of the three tubes is equal. 4) Dispositif selon l'une quelconque des revendications précédentes caractérisé en ce que la longueur des trois tubes étirés au maximum soit de 9I,5 centimètres. 4) Device according to any one of the preceding claims characterized in that the length of the three tubes stretched to the maximum is 9I, 5 centimeters. 5) Dispositif selon l'une quelconque des revendications précédentes caractérisé en ce qu'il est réalisé en matière métallique ou en matière plastique rigide.  5) Device according to any one of the preceding claims, characterized in that it is made of metallic material or rigid plastic material.
FR8906623A 1989-05-16 1989-05-16 TELESCOPIC DEVICE FOR VERIFYING THE CENTER HEIGHT OF A TENNIS NET Expired - Lifetime FR2647020B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8906623A FR2647020B1 (en) 1989-05-16 1989-05-16 TELESCOPIC DEVICE FOR VERIFYING THE CENTER HEIGHT OF A TENNIS NET

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8906623A FR2647020B1 (en) 1989-05-16 1989-05-16 TELESCOPIC DEVICE FOR VERIFYING THE CENTER HEIGHT OF A TENNIS NET

Publications (2)

Publication Number Publication Date
FR2647020A1 true FR2647020A1 (en) 1990-11-23
FR2647020B1 FR2647020B1 (en) 1991-10-18

Family

ID=9381848

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8906623A Expired - Lifetime FR2647020B1 (en) 1989-05-16 1989-05-16 TELESCOPIC DEVICE FOR VERIFYING THE CENTER HEIGHT OF A TENNIS NET

Country Status (1)

Country Link
FR (1) FR2647020B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7059980B1 (en) * 2000-09-05 2006-06-13 Shannon Jr John L Telescopic singles stick

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR622193A (en) * 1926-09-27 1927-05-24 Measuring ruler for sets of balls
FR1164698A (en) * 1957-01-10 1958-10-13 Measurer comparator for set of balls
FR2272694A1 (en) * 1974-05-30 1975-12-26 Lemercier Maurice Tennis net height gauge - is truncated isosceles triangle panel with base cut out to fit over anchor weight

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR622193A (en) * 1926-09-27 1927-05-24 Measuring ruler for sets of balls
FR1164698A (en) * 1957-01-10 1958-10-13 Measurer comparator for set of balls
FR2272694A1 (en) * 1974-05-30 1975-12-26 Lemercier Maurice Tennis net height gauge - is truncated isosceles triangle panel with base cut out to fit over anchor weight

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7059980B1 (en) * 2000-09-05 2006-06-13 Shannon Jr John L Telescopic singles stick

Also Published As

Publication number Publication date
FR2647020B1 (en) 1991-10-18

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