EP0855199A2 - Ballon non-éclatable pour exercices psychomoteurs et procédé pour sa fabrication - Google Patents

Ballon non-éclatable pour exercices psychomoteurs et procédé pour sa fabrication Download PDF

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Publication number
EP0855199A2
EP0855199A2 EP97112948A EP97112948A EP0855199A2 EP 0855199 A2 EP0855199 A2 EP 0855199A2 EP 97112948 A EP97112948 A EP 97112948A EP 97112948 A EP97112948 A EP 97112948A EP 0855199 A2 EP0855199 A2 EP 0855199A2
Authority
EP
European Patent Office
Prior art keywords
pvc
ball
casing
burstable
additives
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Withdrawn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
EP97112948A
Other languages
German (de)
English (en)
Other versions
EP0855199A3 (fr
Inventor
Franco Menotti
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0855199A2 publication Critical patent/EP0855199A2/fr
Publication of EP0855199A3 publication Critical patent/EP0855199A3/fr
Withdrawn legal-status Critical Current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
    • A63B45/00—Apparatus or methods for manufacturing balls
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B41/00—Hollow inflatable balls
    • A63B41/125—Large inflatable balls primarily used as body supports for exercising, e.g. balancing
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B23/00—Exercising apparatus specially adapted for particular parts of the body
    • A63B23/035—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously
    • A63B23/12—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously for upper limbs or related muscles, e.g. chest, upper back or shoulder muscles
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B43/00—Balls with special arrangements
    • A63B43/02—Balls with special arrangements with a handle

Definitions

  • This invention concerns a non-burstable ball for psychomotor exercises and the relative method of production as set forth in the respective main claims.
  • ball for psychomotor exercises means any kind of ball of a diameter of between 20cm and 200cm used for sporting and/or recreational and/or therapeutic activities.
  • the state of the art includes balls for psychomotor exercises used for sporting, recreational and therapeutic activities and made of plastic material, with different shapes and sizes according to their use.
  • the balls consist of a casing made of plastic film, normally PVC, to which the appropriate stabilising and plasticising agents have been added, and into which air under pressure is injected.
  • plastic film normally PVC
  • the inner pressure of the air and/or the stresses to which the ball is subjected during use can cause the ball to burst, and may cause the user to fall.
  • US-A-4.169.594 discloses a ball with a casing made of two or more layers glued or welded together, the outer layer being made of PVC and the inner layer of plastic components with greater hardness and strength.
  • DE-44.34.889 describes a ball with a PVC casing including distributed areas of reinforcement consisting of fragments of hard plastic film.
  • the structure of the casing is not homogeneous and this means that the ball does not bounce regularly.
  • reinforcing materials which are harder than PVC makes the outer surface of the ball more slippery.
  • the casing in its inner thickness has ridges and depressions which limit the rolling properties of the ball.
  • composition of the casing causes the ball to become oval under pressure, which is particularly disadvantageous in particular applications of the ball.
  • the purpose of the invention is to obtain a ball for psychomotor exercises, inflatable or pre-inflated, which, in the event that the casing is holed or damaged, deflates progressively, without bursting.
  • a further purpose of the invention is to obtain a ball which retains its elasticity, its bounce, its ability to roll and its non-slip property unchanged, and a ball wherein these properties can be differentiated according to the specific requirements of use.
  • the ball according to the invention has a casing made at least partially of cellular PVC, that is, PVC which incorporates into its structural composition a plurality of air cells or air vacuums.
  • the PVC is cellularised by mixing the basic components of the PVC with expansion agents which evaporate, under certain conditions of temperature and pressure, during the step when the casing is formed.
  • the cellularisation of the PVC is caused by chemical reactions of the basic substances which compose the PVC.
  • the cellularisation of the PVC is obtained by blowing in air or gas under pressure during the step when the PVC is formed.
  • the cellular structure of the casing of the ball according to the invention which is substantially defined by air vacuums distributed over the thickness of the casing, prevents the ball from bursting in the event of damage or holes.
  • the ball's features of elasticity, rolling and bounce are kept substantially unchanged in that the elements added to cellularise the PVC are no harder than normal PVC.
  • the casing of the ball according to the invention has a cellular structure diversified in thickness.
  • the PVC is cellularised only in the inner part of the casing, the outer part consisting of a layer of normal PVC.
  • the non-burstable ball 10 shown in the Figures is the type used for recreational and/or gymnastic and/or therapeutic activities on which the user sits or partly lies.
  • the non-burstable ball 10 substantially consists of a casing 11 defining an inner chamber 12 which is filled with compressed air through the inflation valve 13.
  • the non-burstable ball 10 has a gripping handle 14, but this is not restrictive since the preferred use of the non-burstable ball 10 is without the handle 14.
  • the casing 11 is made of cellular PVC to which have been added plasticising and stabilising additives which give the desired physical and mechanical characteristics.
  • the cellular structure of the PVC is obtained according to the method shown in Fig. 4, that is, by mixing the basic components, consisting of vinyl resins in emulsion or in suspension or in microsuspension, and plasticising and stabilising substances, with cellulising additives in granular form.
  • the cellulising additives evaporate due to the effect of the heat and the pressure, causing the formation of microcells of air 15 incorporated in the structure of the basic PVC.
  • the cellular PVC thus obtained is then subjected to shaping and forming, in order to obtain the desired shape of the casing 11.
  • plasticising substances are added to the basic material for the composition of the casing 11; these substances are introduced in quantities of between 30% and 120% of the quantity of vinyl resins used and with an epoxy co-stabiliser in quantities of between 0.5% and 5% of the quantity of the vinyl resins.
  • the cellulising additives are introduced in quantities of between 0.1% and 4% of the quantities of vinyl resins used; the granulometry of the cellulising additives is between 1 ⁇ m and 80 ⁇ m.
  • the mixture is brought to a temperature of between 120°C and 220°C.
  • the microcells 15 are formed as a result of chemical reactions which are generated between the basic material and the various additives or between the various additives themselves.
  • the cellular structure of the PVC is obtained by mixing gas or air blown under pressure and at a low temperature into the starting products, either fluid or reactive, for example by mixing CO 2 during the step when the PVC is formed; during the heating step these gases expand and cause the formation of microcells 15.
  • the ball 10 does not burst, but deflates progressively.
  • Fig. 3 shows a variant of the casing 11 which has only a partially cellular structure.
  • the casing 11 has a single layer and comprises an inner part 11a made of cellular PVC and an outer part 11b made of simple PVC.
  • the cellularisation of the PVC concerns only a part of the casing 11, for example the lower semi-circumference.
  • the cellularisation of the PVC is more accentuated in correspondence with the lower semi-circumference and less accentuated in correspondence with the upper semi-circumference.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Finger-Pressure Massage (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
EP97112948A 1997-01-28 1997-07-28 Ballon non-éclatable pour exercices psychomoteurs et procédé pour sa fabrication Withdrawn EP0855199A3 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ITUS970016 1997-01-28
IT97UD000016A IT1290717B1 (it) 1997-01-28 1997-01-28 Palla anti-scoppio per esercizi psicomotori e relativo procedimento di produzione
ITUD970016 1997-01-28

Publications (2)

Publication Number Publication Date
EP0855199A2 true EP0855199A2 (fr) 1998-07-29
EP0855199A3 EP0855199A3 (fr) 1998-12-16

Family

ID=11422285

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97112948A Withdrawn EP0855199A3 (fr) 1997-01-28 1997-07-28 Ballon non-éclatable pour exercices psychomoteurs et procédé pour sa fabrication

Country Status (2)

Country Link
EP (1) EP0855199A3 (fr)
IT (1) IT1290717B1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7383283B2 (en) * 2001-10-16 2008-06-03 Joseph Carrabis Programable method and apparatus for real-time adaptation of presentations to individuals
US8195597B2 (en) 2002-02-07 2012-06-05 Joseph Carrabis System and method for obtaining subtextual information regarding an interaction between an individual and a programmable device
WO2012100512A1 (fr) * 2011-01-27 2012-08-02 南京绎霖国际贸易有限公司 Ballon de sport doté d'une vessie en pvc réutilisable
US8655804B2 (en) 2002-02-07 2014-02-18 Next Stage Evolution, Llc System and method for determining a characteristic of an individual
US20220313034A1 (en) * 2021-04-06 2022-10-06 William Penfield Smith, JR. Toilet plug

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1038762A (en) * 1961-11-24 1966-08-10 Mettoy Co Ltd Improvements relating to hollow playballs or other closed hollow articles
GB1475759A (en) * 1975-10-27 1977-06-10 Mettoy Co Ltd Recreactional devices
US4463951A (en) * 1981-03-17 1984-08-07 Oyo Rubber Chemical Industry Co., Ltd. Ball
MX163049B (es) * 1987-01-28 1991-08-09 Salver Ind Sa Procedimiento para la elaboracion de una pelota neumatica de pvc espumado y producto resultante
IT226284Z2 (it) * 1992-02-27 1997-06-02 Ledragomma Srl Palla di forma ovale in materia plastica morbida per esercizi di ginnastica e per uso fisioterapico in genere utilizzabile anche come sedile

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"THE WAY TO MOVE", JAPANESE JOURNAL OF APPLIED PHYSICS, JAPAN SOCIETY OF APPLIED PHYSICS, JP, vol. 26, no. 6, 1 June 1987 (1987-06-01), JP, pages L920 - L922, XP000667306, ISSN: 0021-4922, DOI: 10.1143/JJAP.26.L920

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7383283B2 (en) * 2001-10-16 2008-06-03 Joseph Carrabis Programable method and apparatus for real-time adaptation of presentations to individuals
US8195597B2 (en) 2002-02-07 2012-06-05 Joseph Carrabis System and method for obtaining subtextual information regarding an interaction between an individual and a programmable device
US8655804B2 (en) 2002-02-07 2014-02-18 Next Stage Evolution, Llc System and method for determining a characteristic of an individual
WO2012100512A1 (fr) * 2011-01-27 2012-08-02 南京绎霖国际贸易有限公司 Ballon de sport doté d'une vessie en pvc réutilisable
US20220313034A1 (en) * 2021-04-06 2022-10-06 William Penfield Smith, JR. Toilet plug
US12185881B2 (en) * 2021-04-06 2025-01-07 William Penfield Smith, JR. Toilet plug

Also Published As

Publication number Publication date
EP0855199A3 (fr) 1998-12-16
IT1290717B1 (it) 1998-12-10
ITUD970016A1 (it) 1998-07-28

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