EP1194189B1 - Apparatus for jumping by successive leaps - Google Patents

Apparatus for jumping by successive leaps Download PDF

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Publication number
EP1194189B1
EP1194189B1 EP00945995A EP00945995A EP1194189B1 EP 1194189 B1 EP1194189 B1 EP 1194189B1 EP 00945995 A EP00945995 A EP 00945995A EP 00945995 A EP00945995 A EP 00945995A EP 1194189 B1 EP1194189 B1 EP 1194189B1
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EP
European Patent Office
Prior art keywords
shaft
braking
braking means
handlebar
needle
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Expired - Lifetime
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EP00945995A
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German (de)
French (fr)
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EP1194189A1 (en
Inventor
Jean-Charles Beaute
Jean-Louis Bourdaries
Eric Beaute
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Individual
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Individual
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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B25/00—Stilts or the like
    • A63B25/08—Hopping-sticks, e.g. pogo sticks ; Hopping apparatus with a single resilient support

Definitions

  • the present invention relates to a device for carrying out jumps by successive leaps.
  • This patent describes a machine essentially comprising a tube inside which slides an impact rod whose deployment towards the ground is provided by means of a compression spring.
  • the improvement brought on this machine lies in the fact that the handlebar with handles and footrest wedges, fixed respectively at the upper and lower end of the tube by means of a pin, can rotate around the axis of the tube and are interconnected by through rigid metal rods. Such a configuration allows keep the handlebars and wedges almost horizontal, regardless of the inclination given to the impact rod.
  • the object of the invention is to overcome this drawback and propose a jumping craft of the type mentioned above that allows a user not warned to become familiar with the machine safely.
  • Another object of the invention is to provide a jumping apparatus which can be used in extreme conditions such as those of a sport competition.
  • the device is characterized by the fact that comprises means for braking the impact rod relative to the body and means for manually controlling said braking means arranged at the level of handlebar.
  • An unsuspecting user can thus, using the means of according to the invention, it is easier to control the jumping device and therefore make the first jumps safely.
  • the device according to the invention can be used in extreme conditions since the braking means can block instantly sliding of the impact rod relative to the body.
  • the footrest wedges are made in one only machined part provided with an axial passage adapted to receive by sliding the impact rod, said machined part being screwed to the lower end of the body tubular.
  • the handlebar is connected to the upper end of the body via a gallows.
  • the means resilient return means comprise a coil spring.
  • the braking means comprise at minus a friction surface adapted to come to rest radially against the rod.
  • the stem is hollow and the floating surface rubs inside of it.
  • the friction surface is advantageously a cylindrical ring made of elastomer.
  • the braking means comprise a sleeve adapted to deform the cylindrical ring radially.
  • the sleeve comprises in its lower part, legs each having an inclined pan, disposed of concentrically and around which the cylindrical ring is mounted in force.
  • a needle having a conical head is inserted between the legs coming into contact with each inclined section, the manual control means being adapted to move axially said needle to cause the radial spacing of said tabs.
  • the device comprises means for elastic return of the needle.
  • the device comprises a sleeve screwed to the upper end of the tubular body and extending longitudinally inside the latter, so as to house the cables fixed to the braking means.
  • the braking means are preferably attached to the lower end of the sheath.
  • the device according to the invention advantageously comprises a ball bushing adapted to guide the rod along the axis of the body during its sliding inside of it.
  • the device represented by way of example in FIGS. 1 to 2b is intended for jumping by successive leaps and has been specially designed to users wishing to practice a conciliatory sport sense of balance and physical endurance.
  • this device 1 comprises essentially a tubular body 2 whose lower end is provided with two wedges footrest 3, 4 and in the extension of which an impact rod 5 is able to deploy down.
  • This impact rod 5 adapted to slide inside the tubular body 2 comprises in its lower part a pad 51 made of a material to low coefficient of friction.
  • a sheath 6 is fixed to the tubular body 2 at the end superior of it.
  • This sheath 6 comprises a tip 61 in which comes accommodate a stem 7 of the type used to equip designated bicycles under the name "VTT".
  • a handlebar 8 provided with two handles 81, 82 is attached to said stem 7 so that it extends transversely to the tubular body 2.
  • a handle 83, 84 is mounted, in a manner known per se, on each handle 81, 82.
  • On each handle 83, 84 is fixed a cable 85, 86 provided with of a sheath and connected to the braking means 9, described hereinafter in detail.
  • FIG. 2 is a longitudinal sectional view of the device Figure 1 along the axis A-A.
  • the tubular body 2 has at each of its ends a tapping 21, 22.
  • the impact rod 5 is hollow and has at its end superior a metal ring 10 mounted in force.
  • This metal ring 10 comes to bear against the lower part of a coil spring 11.
  • This spring 11 of compression is adapted to return the impact rod 5 to an extreme position deployed.
  • the characteristic quantities of this spring 11 have been determined to prevent any contact between the lower part of the footrest 3, 4 and the pad 51, even under extreme conditions of use. Note that this spring 11 is interchangeable according to the weight of the user.
  • the footrest wedges 3, 4 are perforated and each provided with on their upper face of crampons 31, 41. These wedges 3, 4 are made in one only machined part 12 made of a lightweight material such as aluminum. This piece machined 12 is provided with an axial passage 121 adapted to receive by sliding the impact rod 5, and is screwed to the lower end of the tubular body 2.
  • a ball bushing 13 adapted to guide the impact rod 5 along the axis of the body 2 when sliding inside it is housed at inside the axial passage 121.
  • This ball bushing 13 is held in place in its housing through an annular plate 14 fixed to the machined part 12 by means of screws 15.
  • the sheath 6 comprises, at its lower end, a bulge 63 adapted to house a cylindrical sleeve 91 which constitutes a part braking means 9 according to the invention ( Figure 2a).
  • the sleeve 91 has, in its lower part, legs 911 each having an inclined section 912 arranged concentrically, of so that they form a cavity 913 having a symmetry of axis revolution confused with the axis A-A sliding of the impact rod 5.
  • a ring cylindrical elastomer 92 is mounted in force around legs 911 and constitutes the brake lining according to the invention.
  • the braking means 9 also comprise a needle 93 drilled with a channel 931 in which are housed the cables.
  • the conical head 932 of this needle 93 is housed in the cavity 913 formed by the legs 911 abutting against the inclined faces 912.
  • the needle 93 comprises, at the opposite end of the head 932, a thread 933 in which is screwed a knurled nut-counter-nut system 94.
  • This nut-against-nut system 94 makes it possible to maintain place a compression spring 95 whose upper end is based on a washer 96.
  • the washer 96 is itself based on the underside of the cylindrical ring 92.
  • the cables are kept tight at their free end, in a cable clamp 97 through two screws 971, 972.
  • the displacement of the needle 93 causes a radial spacing 911 legs.
  • the ring 92 is then deformed radially (FIG. 2b) and its outer side wall 921 rubs against the inner wall 52 of the rod impact 5, which causes the braking of the latter relative to the body tubular 2.
  • the compression spring 95 returns to the free state and brings back thus the needle 93 in the position it initially occupied before braking.
  • Figure 3 is a sectional view of a variant of the rod impact 5.
  • the impact rod 5 consists of two parts 5a, 5b interconnected by means of a threaded rod 52 which is also used to maintain the skate 5.
  • the smallest part 5b of the impact rod arranged in the lower part of the stem can be replaced by any other part of identical shape and of different length.
  • the length of this part 5b is adjustable according to the size of the user.
  • the particular structure of the braking means 9 described above can be replaced by an equivalent structure, such as jaws with jaws suitable for squeezing one or more padding (s) brake arranged concentrically outside the impact rod 5.
  • the compression spring of the preferred variant to recall the impact rod can be arranged in a different way, as for example be arranged around the impact rod under the footrest wedges. It can also be progressive, which allows to make the first jumps easier. It may also be replaced by any other equivalent means adapted to return the impact rod to its extended deployed position such as pneumatic means.

Abstract

A device (1) for performing jumps by successive leaps, includes a tubular body (2) which is provided at one of its ends, referred to as the "lower" end, with footrest struts (3, 4); a handlebar (8) equipped with grips (81, 82) which is integral with the other end, referred to as the "upper" end, of the body; an impact shaft (5) is adapted to slide inside the body (2) and at least part of which is capable of being deployed in the extension of the lower end of the body; and elements (14) for returning the shaft (5) elastically to an extreme deployed position. The device includes elements (9) for braking the impact shaft (5) in relation to the body (2) and elements (83, 84), which are disposed on the handlebar (8), for manually controlling the braking elements(9).

Description

La présente invention concerne un dispositif pour réaliser des sauts par bonds successifs.The present invention relates to a device for carrying out jumps by successive leaps.

Le type de dispositif visé par l'invention a déjà été largement décrit dans de nombreuses publications, telles que le brevet US 4.390.178.The type of device targeted by the invention has already been widely described in numerous publications, such as US Patent 4,390,178.

Ce brevet décrit un engin comprenant essentiellement un tube à l'intérieur duquel coulisse une tige d'impact dont le déploiement vers le sol est assuré au moyen d'un ressort de compression. Le perfectionnement apporté sur cet engin réside dans le fait que le guidon avec poignées et les cales repose-pied, fixés respectivement à l'extrémité supérieure et inférieure du tube au moyen d'une goupille, peuvent pivoter autour de l'axe du tube et sont reliés entre eux par l'intermédiaire de baguettes métalliques rigides. Une telle configuration permet de maintenir le guidon et les cales en position quasi-horizontale, quelle que soit l'inclinaison donnée à la tige d'impact.This patent describes a machine essentially comprising a tube inside which slides an impact rod whose deployment towards the ground is provided by means of a compression spring. The improvement brought on this machine lies in the fact that the handlebar with handles and footrest wedges, fixed respectively at the upper and lower end of the tube by means of a pin, can rotate around the axis of the tube and are interconnected by through rigid metal rods. Such a configuration allows keep the handlebars and wedges almost horizontal, regardless of the inclination given to the impact rod.

Ainsi, l'utilisateur a un meilleur contrôle de son engin sur un sol irrégulier. Cependant, un utilisateur non averti ne peut se familiariser avec un tel engin en toute sécurité.Thus, the user has better control of his gear on a irregular ground. However, an unsophisticated user can not become familiar with such gear in complete safety.

Le but de l'invention est de pallier cet inconvénient et de proposer un engin de saut du type mentionné plus haut qui permette à un utilisateur non averti de se familiariser en toute sécurité avec ledit engin.The object of the invention is to overcome this drawback and propose a jumping craft of the type mentioned above that allows a user not warned to become familiar with the machine safely.

Un autre objectif de l'invention est de fournir un engin de saut qui puisse être utilisé dans des conditions extrêmes telles que celles d'une compétition sportive.Another object of the invention is to provide a jumping apparatus which can be used in extreme conditions such as those of a sport competition.

A cet effet, l'invention a pour objet un dispositif pour réaliser des sauts par bonds successifs comprenant :

  • un corps tubulaire pourvu au niveau d'une de ses extrémités, dite inférieure, de cales repose-pied,
  • un guidon muni de poignées, solidaire de l'autre extrémité, dite supérieure, du corps,
  • une tige d'impact adaptée pour coulisser à l'intérieur du corps et dont au moins une partie est apte à se déployer dans le prolongement de l'extrémité inférieure du corps,
  • des moyens de rappel élastique de la tige vers une position extrême déployée.
For this purpose, the subject of the invention is a device for making jumps by successive leaps comprising:
  • a tubular body provided at one of its ends, called lower, footrest wedges,
  • a handlebar provided with handles, integral with the other end, said upper body,
  • an impact rod adapted to slide inside the body and at least a portion of which is capable of being deployed in the extension of the lower end of the body,
  • elastic return means of the rod towards an extended deployed position.

Selon l'invention, le dispositif se caractérise par le fait qu'il comprend des moyens de freinage de la tige d'impact par rapport au corps et des moyens de commande manuelle desdits moyens de freinage disposés au niveau du guidon.According to the invention, the device is characterized by the fact that comprises means for braking the impact rod relative to the body and means for manually controlling said braking means arranged at the level of handlebar.

Un utilisateur non averti peut ainsi, à l'aide des moyens de freinage selon l'invention, maítriser plus facilement le dispositif de sauts et donc réaliser les premiers sauts en toute sécurité.An unsuspecting user can thus, using the means of according to the invention, it is easier to control the jumping device and therefore make the first jumps safely.

En outre, le dispositif selon l'invention peut être utilisé dans des conditions extrêmes puisque les moyens de freinage peuvent bloquer instantanément le coulissement de la tige d'impact par rapport au corps.In addition, the device according to the invention can be used in extreme conditions since the braking means can block instantly sliding of the impact rod relative to the body.

De préférence, les cales repose-pied sont réalisées en une seule pièce usinée pourvue d'un passage axial adapté pour recevoir par coulissement la tige d'impact, ladite pièce usinée étant vissée à l'extrémité inférieure du corps tubulaire.Preferably, the footrest wedges are made in one only machined part provided with an axial passage adapted to receive by sliding the impact rod, said machined part being screwed to the lower end of the body tubular.

Avantageusement, le guidon est relié à l'extrémité supérieure du corps par l'intermédiaire d'une potence.Advantageously, the handlebar is connected to the upper end of the body via a gallows.

Selon une caractéristique préférée de l'invention, les moyens de rappel élastique comprennent un ressort hélicoïdal.According to a preferred feature of the invention, the means resilient return means comprise a coil spring.

Avantageusement, les moyens de freinage comprennent au moins une surface de frottement adaptée pour venir s'appuyer radialement contre la tige.Advantageously, the braking means comprise at minus a friction surface adapted to come to rest radially against the rod.

Selon une variante préférée de l'invention, la tige est creuse et la surface de flottement vient frotter à l'intérieur de celle-ci.According to a preferred variant of the invention, the stem is hollow and the floating surface rubs inside of it.

Selon cette variante, la surface de frottement est avantageusement un anneau cylindrique en élastomère.According to this variant, the friction surface is advantageously a cylindrical ring made of elastomer.

Selon cette variante encore, les moyens de freinage comprennent un manchon adapté pour déformer radialement l'anneau cylindrique. According to this variant again, the braking means comprise a sleeve adapted to deform the cylindrical ring radially.

Avantageusement et selon l'invention, le manchon comporte dans sa partie inférieure, des pattes présentant chacune un pan incliné, disposées de manière concentrique et autour desquelles l'anneau cylindrique est monté en force. De préférence, un pointeau comportant une tête conique est inséré entre les pattes en venant au contact de chaque pan incliné, les moyens de commande manuelle étant adaptés pour déplacer axialement ledit pointeau en vue de provoquer l'écartement radial desdites pattes.Advantageously and according to the invention, the sleeve comprises in its lower part, legs each having an inclined pan, disposed of concentrically and around which the cylindrical ring is mounted in force. Preferably, a needle having a conical head is inserted between the legs coming into contact with each inclined section, the manual control means being adapted to move axially said needle to cause the radial spacing of said tabs.

De préférence encore, le dispositif comprend des moyens de rappel élastique du pointeau.More preferably, the device comprises means for elastic return of the needle.

Selon un mode de réalisation préféré de l'invention, le dispositif comprend un fourreau vissé à l'extrémité supérieure du corps tubulaire et s'étendant longitudinalement à l'intérieur de ce dernier, de façon à loger les câbles fixés aux moyens de freinage.According to a preferred embodiment of the invention, the device comprises a sleeve screwed to the upper end of the tubular body and extending longitudinally inside the latter, so as to house the cables fixed to the braking means.

Selon ce mode de réalisation, les moyens de freinage sont de préférence fixés à l'extrémité inférieure du fourreau.According to this embodiment, the braking means are preferably attached to the lower end of the sheath.

Le dispositif selon l'invention comprend avantageusement une douille à billes adaptée pour guider la tige selon l'axe du corps lors de son coulissement à l'intérieur de celui-ci.The device according to the invention advantageously comprises a ball bushing adapted to guide the rod along the axis of the body during its sliding inside of it.

D'autres caractéristiques avantageuses de l'invention ressortiront ci-après à la lecture de la description détaillée faite en référence aux figures 1 à 3 qui représentent respectivement :

  • figure 1 : une vue générale en perspective d'un mode de réalisation d'un dispositifselon l'invention,
  • figure 2 : une vue en coupe longitudinale du dispositif de la figure 1 selon l'axe A-A,
  • figures 2a et 2b : des vues agrandies de la figure 2 expliquant le fonctionnement d'une partie du dispositif,
  • figure 3 : une vue en coupe d'une variante du dispositif selon l'invention.
Other advantageous features of the invention will emerge below from a reading of the detailed description made with reference to FIGS. 1 to 3 which represent respectively:
  • FIG. 1 is a general perspective view of an embodiment of a device according to the invention,
  • FIG. 2: a longitudinal sectional view of the device of FIG. 1 along axis AA,
  • FIGS. 2a and 2b: enlarged views of FIG. 2 explaining the operation of a part of the device,
  • Figure 3 is a sectional view of a variant of the device according to the invention.

Le dispositif représenté à titre d'exemple aux figures 1 à 2b est destiné à réaliser des sauts par bonds successifs et a été conçu spécialement pour des utilisateurs souhaitant pratiquer un sport conciliant sens de l'équilibre et endurance physique.The device represented by way of example in FIGS. 1 to 2b is intended for jumping by successive leaps and has been specially designed to users wishing to practice a conciliatory sport sense of balance and physical endurance.

Tel qu'il est représenté à la figure 1, ce dispositif 1 comprend essentiellement un corps tubulaire 2 dont l'extrémité inférieure est pourvue de deux cales repose-pied 3, 4 et dans le prolongement de laquelle une tige d'impact 5 est apte à se déployer vers le bas.As shown in FIG. 1, this device 1 comprises essentially a tubular body 2 whose lower end is provided with two wedges footrest 3, 4 and in the extension of which an impact rod 5 is able to deploy down.

Cette tige d'impact 5 adaptée pour coulisser à l'intérieur du corps tubulaire 2 comporte dans sa partie inférieure un patin 51 fait en un matériau à faible coefficient de frottement.This impact rod 5 adapted to slide inside the tubular body 2 comprises in its lower part a pad 51 made of a material to low coefficient of friction.

Un fourreau 6 est fixé au corps tubulaire 2 à l'extrémité supérieure de celui-ci. Ce fourreau 6 comprend un embout 61 dans lequel vient se loger une potence 7 du type de celle utilisée pour équiper les bicyclettes désignées sous l'appellation "VTT".A sheath 6 is fixed to the tubular body 2 at the end superior of it. This sheath 6 comprises a tip 61 in which comes accommodate a stem 7 of the type used to equip designated bicycles under the name "VTT".

Un guidon 8 muni de deux poignées 81, 82 est fixé à ladite potence 7 de telle sorte qu'il s'étende transversalement au corps tubulaire 2.A handlebar 8 provided with two handles 81, 82 is attached to said stem 7 so that it extends transversely to the tubular body 2.

Une manette 83, 84 est montée, d'une manière connue en soi, sur chaque poignée 81, 82. Sur chaque manette 83, 84 est fixé un câble 85, 86 muni d'une gaine et relié aux moyens de freinage 9, décrits ci-après en détail.A handle 83, 84 is mounted, in a manner known per se, on each handle 81, 82. On each handle 83, 84 is fixed a cable 85, 86 provided with of a sheath and connected to the braking means 9, described hereinafter in detail.

La figure 2 est une vue en coupe longitudinale du dispositif de la figure 1 selon l'axe A-A.FIG. 2 is a longitudinal sectional view of the device Figure 1 along the axis A-A.

Le corps tubulaire 2 comporte à chacune de ses extrémités un taraudage 21, 22.The tubular body 2 has at each of its ends a tapping 21, 22.

La tige d'impact 5 est creuse et comporte à son extrémité supérieure une bague métallique 10 montée en force. Cette bague métallique 10 vient s'appuyer contre la partie inférieure d'un ressort hélicoïdal 11. Ce ressort 11 de compression est adapté pour ramener la tige d'impact 5 vers une position extrême déployée. En outre, les grandeurs caractéristiques de ce ressort 11 ont été déterminées pour éviter tout contact entre la partie inférieure des cales repose-pied 3, 4 et le patin 51, même dans des conditions extrêmes d'utilisation. Il est à noter que ce ressort 11 est interchangeable en fonction du poids de l'utilisateur.The impact rod 5 is hollow and has at its end superior a metal ring 10 mounted in force. This metal ring 10 comes to bear against the lower part of a coil spring 11. This spring 11 of compression is adapted to return the impact rod 5 to an extreme position deployed. In addition, the characteristic quantities of this spring 11 have been determined to prevent any contact between the lower part of the footrest 3, 4 and the pad 51, even under extreme conditions of use. Note that this spring 11 is interchangeable according to the weight of the user.

Les cales repose-pied 3, 4 sont perforées et chacune munies sur leur face supérieure de crampons 31, 41. Ces cales 3, 4 sont réalisées en une seule pièce usinée 12 réalisée en un matériau léger tel que l'aluminium. Cette pièce usinée 12 est pourvue d'un passage axial 121 adapté pour recevoir par coulissement la tige d'impact 5, et est vissée à l'extrémité inférieure du corps tubulaire 2.The footrest wedges 3, 4 are perforated and each provided with on their upper face of crampons 31, 41. These wedges 3, 4 are made in one only machined part 12 made of a lightweight material such as aluminum. This piece machined 12 is provided with an axial passage 121 adapted to receive by sliding the impact rod 5, and is screwed to the lower end of the tubular body 2.

Une douille à billes 13 adaptée pour guider la tige d'impact 5 selon l'axe du corps 2 lors de son coulissement à l'intérieur de celui-ci est logée à l'intérieur du passage axial 121.A ball bushing 13 adapted to guide the impact rod 5 along the axis of the body 2 when sliding inside it is housed at inside the axial passage 121.

Cette douille à billes 13 est maintenue en place dans son logement par l'intermédiaire d'une plaquette annulaire 14 fixée à la pièce usinée 12 au moyen de vis 15.This ball bushing 13 is held in place in its housing through an annular plate 14 fixed to the machined part 12 by means of screws 15.

Le fourreau 6 comprend, à son extrémité inférieure, un renflement 63 adapté pour loger un manchon 91 cylindrique qui constitue une partie des moyens de freinage 9 conformes à l'invention (figure 2a).The sheath 6 comprises, at its lower end, a bulge 63 adapted to house a cylindrical sleeve 91 which constitutes a part braking means 9 according to the invention (Figure 2a).

Le manchon 91 comporte, dans sa partie inférieure, des pattes 911 présentant chacune un pan incliné 912 disposées de manière concentrique, de sorte qu'elles forment une cavité 913 présentant une symétrie de révolution d'axe confondu avec l'axe A-A de coulissement de la tige d'impact 5. Un anneau cylindrique en élastomère 92 est monté en force autour de pattes 911 et constitue la garniture de frein selon l'invention.The sleeve 91 has, in its lower part, legs 911 each having an inclined section 912 arranged concentrically, of so that they form a cavity 913 having a symmetry of axis revolution confused with the axis A-A sliding of the impact rod 5. A ring cylindrical elastomer 92 is mounted in force around legs 911 and constitutes the brake lining according to the invention.

Les moyens de freinage 9 comportent également un pointeau 93 percé d'un canal 931 dans lequel viennent se loger les câbles.The braking means 9 also comprise a needle 93 drilled with a channel 931 in which are housed the cables.

La tête conique 932 de ce pointeau 93 est logée dans la cavité 913 formée par les pattes 911 en venant en butée contre les pans inclinés 912. Le pointeau 93 comprend, à l'extrémité opposée de la tête 932, un filetage 933 dans lequel est vissé un système d'écrou-contre-écrou moleté 94.The conical head 932 of this needle 93 is housed in the cavity 913 formed by the legs 911 abutting against the inclined faces 912. The needle 93 comprises, at the opposite end of the head 932, a thread 933 in which is screwed a knurled nut-counter-nut system 94.

Ce système d'écrou-contre-écrou 94 permet de maintenir en place un ressort de compression 95 dont l'extrémité supérieure vient s'appuyer sur une rondelle 96. La rondelle 96 vient elle-même s'appuyer sur la face inférieure de l'anneau cylindrique 92.This nut-against-nut system 94 makes it possible to maintain place a compression spring 95 whose upper end is based on a washer 96. The washer 96 is itself based on the underside of the cylindrical ring 92.

Les câbles sont maintenus serrés à leur extrémité libre, dans un serre câbles 97 par l'intermédiaire de deux vis 971, 972.The cables are kept tight at their free end, in a cable clamp 97 through two screws 971, 972.

Le fonctionnement des moyens de freinage conformes à l'invention est expliqué ci-après. The operation of the braking means according to the invention is explained below.

Lorsque l'utilisateur désire s'immobiliser ou diminuer l'amplitude des bonds réalisés, il appuie sur les manettes 83, 84 et provoque ainsi la tension des câbles 85, 86 en amenant le serre câbles 97 en butée contre le système d'écrou-contre-écrou moleté 94 (figure 2b).When the user wants to stop or decrease the amplitude of the hops made, he presses the handles 83, 84 and thus causes the tension of the cables 85, 86 by bringing the cable gland 97 into abutment against the system nut-counter-nut knurled 94 (Figure 2b).

Cette tension des câbles 85, 86 provoque le déplacement du pointeau 93 vers l'intérieur de la cavité 913 avec frottement de la tête conique 932 contre les pans inclinés 912 et la compression du ressort 95 contre la rondelle 96.This tension of the cables 85, 86 causes the displacement of the needle 93 towards the interior of the cavity 913 with friction of the conical head 932 against the inclined faces 912 and the compression of the spring 95 against the washer 96.

Le déplacement du pointeau 93 provoque un écartement radial des pattes 911.The displacement of the needle 93 causes a radial spacing 911 legs.

L'anneau 92 est alors déformé radialement (figure 2b) et sa paroi latérale 921 extérieure vient frotter contre la paroi interne 52 de la tige d'impact 5, ce qui provoque le freinage de cette dernière par rapport au corps tubulaire 2.The ring 92 is then deformed radially (FIG. 2b) and its outer side wall 921 rubs against the inner wall 52 of the rod impact 5, which causes the braking of the latter relative to the body tubular 2.

Une fois que le freinage a été réalisé, l'utilisateur relâche les manettes 83, 84, et met ainsi les câbles hors tension.Once the braking has been completed, the user releases the joysticks 83, 84, and thus disconnects the cables.

Le ressort de compression 95 revient à l'état libre et ramène ainsi le pointeau 93 dans la position qu'il occupait initialement avant le freinage.The compression spring 95 returns to the free state and brings back thus the needle 93 in the position it initially occupied before braking.

Dans le même temps, les pattes 911 se rapprochent les unes des autres et l'anneau 92 revient à l'état non déformé.At the same time, the legs 911 are getting closer to each other others and the ring 92 returns to the undistorted state.

Le coulissement de la tige d'impact 5 par rapport au corps redevient possible.The sliding of the impact rod 5 with respect to the body becomes possible again.

La figure 3 est une vue en coupe d'une variante de la tige d'impact 5.Figure 3 is a sectional view of a variant of the rod impact 5.

Selon cette variante, la tige d'impact 5 se compose de deux parties 5a, 5b liées entre elles au moyen d'une tige filetée 52 qui sert également à maintenir le patin 5.According to this variant, the impact rod 5 consists of two parts 5a, 5b interconnected by means of a threaded rod 52 which is also used to maintain the skate 5.

La plus petite partie 5b de la tige d'impact agencée dans la partie basse de la tige peut être remplacée par toute autre partie de forme identique et de longueur différente. La longueur de cette partie 5b est ajustable en fonction de la taille de l'utilisateur.The smallest part 5b of the impact rod arranged in the lower part of the stem can be replaced by any other part of identical shape and of different length. The length of this part 5b is adjustable according to the size of the user.

Bien entendu, il va de soi que de nombreuses modifications peuvent être apportées sans pour autant sortir du cadre de l'invention. Of course, it goes without saying that many changes can be made without departing from the scope of the invention.

Ainsi, la structure particulière des moyens de freinage 9 décrite ci-dessus peut tout à fait être remplacée par une structure équivalente, telle que des mâchoires avec mors adaptés pour serrer une ou plusieurs gamiture(s) de frein disposée(s) de manière concentrique à l'extérieur de la tige d'impact 5.Thus, the particular structure of the braking means 9 described above can be replaced by an equivalent structure, such as jaws with jaws suitable for squeezing one or more padding (s) brake arranged concentrically outside the impact rod 5.

De même, le ressort de compression de la variante préférée permettant de rappeler la tige d'impact peut être agencé d'une manière différente, comme par exemple être disposé autour de la tige d'impact sous les cales repose-pied. Il peut également être progressif, ce qui permet de réaliser les premiers sauts plus facilement. Il peut également être remplacé par tout autre moyen équivalent adapté pour ramener la tige d'impact dans sa position extrême déployée tel que des moyens pneumatiques.Similarly, the compression spring of the preferred variant to recall the impact rod can be arranged in a different way, as for example be arranged around the impact rod under the footrest wedges. It can also be progressive, which allows to make the first jumps easier. It may also be replaced by any other equivalent means adapted to return the impact rod to its extended deployed position such as pneumatic means.

Claims (15)

  1. Device (1) for performing jumps by successive leaps which comprises:
    a tubular body (2) which is provided at one of its ends, which is referred to as the "lower" end, with footrest struts (3, 4),
    a handlebar (8) equipped with grips (81, 82) which is integral with the other end, which is referred to as the "upper" end, of the body,
    an impact shaft (5) which is adapted to slide inside the body (2) and at least part of which is capable of being deployed in the extension of the lower end of the said body, and
    means (14) for returning the shaft (5) elastically to an extreme deployed position,
    characterised in that it comprises:
    means (9) for braking the impact shaft (5) in relation to the body (2) and
    means (83, 84), which are disposed on the handlebar (8), for manually controlling the braking means (9).
  2. Device according to claim 1, characterised in that the footrest struts are produced in a single, machined piece (12) provided with an axial passage (121) which is adapted to receive the impact shaft (5) by sliding, the said machined piece (12) being screwed to the lower end of the tubular body (2).
  3. Device according to claim 1 or 2, characterised in that the handlebar (8) is connected to the upper end of the body (2) via a stem (7).
  4. Device according to one of claims 1 to 3, characterised in that the elastic returning means comprise a helicoidal spring (14).
  5. Device according to one of claims 1 to 4, characterised in that the means for manually controlling the braking means (9) are constituted by levers (83, 84) which are mounted on the handlebar (8) and adapted to actuate cables (85, 86) fixed to the said braking means.
  6. Device according to one of claims 1 to 5, characterised in that the braking means (9) comprise at least one friction surface (92) which is adapted to rest radially against the shaft (5).
  7. Device according to claim 6, characterised in that the shaft (5) is hollow and the friction surface (92) rubs on the inside of the said shaft.
  8. Device according to claim 7, characterised in that the friction surface is a cylindrical ring (92) made of elastomer.
  9. Device according to claim 8, characterised in that the braking means comprise a bush (91) which is adapted to deform the cylindrical ring (92) radially.
  10. Device according to claim 9, characterised in that the bush (91) has, in its lower part, feet (911) which each have an inclined face (912) and are disposed in a concentric manner and around which the cylindrical ring (92) is force-fitted.
  11. Device according to claim 10, characterised in that a needle (93) having a conical head (932) is inserted between the feet (911), thereby coming into contact with each inclined face (912), the manual control means (83, 84) being adapted to displace the said needle axially with a view to causing the said feet to move apart radially.
  12. Device according to claim 11, characterised in that it has means (95) for returning the needle (93) elastically.
  13. Device according to one of claims 5 to 12, characterised in that it comprises a sleeve (6) which is screwed to the upper end of the tubular body (2) and extends longitudinally inside the latter in such a way as to accommodate the cables fixed to the braking means (9).
  14. Device according to claim 13, characterised in that the braking means (9) are fixed to the lower end of the sleeve (6).
  15. Device according to one of claims 1 to 14, characterised in that it comprises a ball-socket (12) which is adapted to guide the shaft along the axis of the body when it slides inside the latter.
EP00945995A 1999-07-13 2000-06-23 Apparatus for jumping by successive leaps Expired - Lifetime EP1194189B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9909076 1999-07-13
FR9909076A FR2796298B1 (en) 1999-07-13 1999-07-13 APPARATUS FOR CONDUCTING JUMPS BY SUCCESSIVE BONDS
PCT/FR2000/001756 WO2001003778A1 (en) 1999-07-13 2000-06-23 Apparatus for jumping by successive leaps

Publications (2)

Publication Number Publication Date
EP1194189A1 EP1194189A1 (en) 2002-04-10
EP1194189B1 true EP1194189B1 (en) 2005-04-13

Family

ID=9548047

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00945995A Expired - Lifetime EP1194189B1 (en) 1999-07-13 2000-06-23 Apparatus for jumping by successive leaps

Country Status (8)

Country Link
US (1) US6726603B1 (en)
EP (1) EP1194189B1 (en)
AT (1) ATE292995T1 (en)
AU (1) AU5990500A (en)
DE (1) DE60019422T2 (en)
ES (1) ES2240118T3 (en)
FR (1) FR2796298B1 (en)
WO (1) WO2001003778A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7011608B2 (en) * 2001-10-19 2006-03-14 Spencer Bruce L Pneumatic pogo stick
US7771331B2 (en) * 2008-01-30 2010-08-10 Michael Lucano Pivotal axis exercise device
US9119986B2 (en) * 2012-05-30 2015-09-01 Corepump, Llc Resistance training apparatus
US10245467B2 (en) 2014-07-01 2019-04-02 Vurtego, LLC Piston configurations for pneumatic pogo stick

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2992009A (en) * 1957-10-08 1961-07-11 James C Dimitriadis Child's riding toy
US3432162A (en) * 1967-02-20 1969-03-11 Leonard P Flemming Movable seat type exerciser
US3773320A (en) * 1971-11-29 1973-11-20 D Samiran Pogo stick with adjustable spring bias
US3853195A (en) * 1974-01-31 1974-12-10 K Rasanen Powered jumping stick
US4390178A (en) * 1980-06-20 1983-06-28 Elliot Rudell Pivotal jumping stick
US4625985A (en) * 1985-04-15 1986-12-02 Honda Giken Kogyo Kabushiki Kaisha Anti dive devices for motorcycles
US4828251A (en) * 1988-01-28 1989-05-09 Bernard Schreiber Balance and coordination exercise device
US4971344A (en) * 1989-01-04 1990-11-20 Rockshox, Inc. Bicycle with a front fork wheel suspension
US5193833A (en) * 1990-08-24 1993-03-16 Robert Reisinger Bicycle front suspension, steering & braking system

Also Published As

Publication number Publication date
ATE292995T1 (en) 2005-04-15
EP1194189A1 (en) 2002-04-10
FR2796298A1 (en) 2001-01-19
AU5990500A (en) 2001-01-30
FR2796298B1 (en) 2001-10-19
ES2240118T3 (en) 2005-10-16
DE60019422T2 (en) 2006-01-26
US6726603B1 (en) 2004-04-27
WO2001003778A1 (en) 2001-01-18
DE60019422D1 (en) 2005-05-19

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